Publications

Durao, F, Bayyapu, K, Xu, G, Dolog, P & Lage, R 2013, Medical Information Retrieval Enhanced with User’s Query Expanded with Tag-Neighbors, Springer New York.
View/Download from: Publisher's site
View description>>

Under-specified queries often lead to undesirable search results that do not contain the information needed. This problem gets worse when it comes to medical information, a natural human demand everywhere. Existing search engines on the Web often are unable to handle medical search well because they do not consider its special requirements. Often a medical information searcher is uncertain about his exact questions and unfamiliar with medical terminology. To overcome the limitations of under-specified queries, we utilize tags to enhance information retrieval capabilities by expanding users’ original queries with context-relevant information. We compute a set of significant tag neighbor candidates based on the neighbor frequency and weight, and utilize the qualified tag neighbors to expand an entry query. The proposed approach is evaluated by using MedWorm medical article collection and results show considerable precision improvements over state-of-the-art approaches.

Howlett, RJ & Gabrys, B 2013, InnovationKT-2012 Preface.

Hussain, OK, Dillon, TS, Hussain, FK & Chang, EJ 2013, Risk Assessment and Management in the Networked Economy, 1, Springer Berlin Heidelberg, Netherlands.
View/Download from: Publisher's site
View description>>

This book, authored by some of the leading researchers in the field, includes chapters that shed a new light over the domain. The book builds on the important idea that users confidence in online services will be increasingly based on a VI Foreword sound, shared notion of dynamic transactional risk, rather then on todays heuristics. Such notion, as proposed in this book, captures the fundamental aspects of occasional online transactions, including time-dependence and possible information asymmetries.

Luo, T, Chen, S, Xu, G & Zhou, J 2013, Trust-based Collective View Prediction, 1, Springer New York, Germany.
View/Download from: Publisher's site
View description>>

Collective view prediction is to judge the opinions of an active web user based on unknown elements by referring to the collective mind of the whole community. Content-based recommendation and collaborative filtering are two mainstream collective view prediction techniques. They generate predictions by analyzing the text features of the target object or the similarity of users past behaviors. Still, these techniques are vulnerable to the artificially-injected noise data, because they are not able to judge the reliability and credibility of the information sources. Trust-based Collective View Prediction describes new approaches for tackling this problem by utilizing users trust relationships from the perspectives of fundamental theory, trust-based collective view prediction algorithms and real case studies. The book consists of two main parts a theoretical foundation and an algorithmic study. The first part will review several basic concepts and methods related to collective view prediction, such as state-of-the-art recommender systems, sentimental analysis, collective view, trust management, the Relationship of Collective View and Trustworthy, and trust in collective view prediction. In the second part, the authors present their models and algorithms based on a quantitative analysis of more than 300 thousand users data from popular product-reviewing websites. They also introduce two new trust-based prediction algorithms, one collaborative algorithm based on the second-order Markov random walk model, and one Bayesian fitting model for combining multiple predictors.

Ni, B-J 2013, Formation, characterization and mathematical modeling of the aerobic granular sludge, Springer Berlin Heidelberg.
View/Download from: Publisher's site

Sun, J, Buys, N & Merrick, J 2013, Advances in preterm infant research.
View description>>

This book presents the experience from a study that investigated executive function (EF) and sustained attention (SA) in preterm and full-term infants at 8 months after expected date of delivery and at 10-11 months of age. Executive function and sustained attention emerge in infancy and continues to develop throughout childhood. Executive function and sustained attention is believed to underlie some learning problems in children at school age. Although numerous studies have reported that the overall development of preterm infants is comparable to that of full-term infants at the same corrected age, it is unclear to what extent the development of specific cognitive abilities is affected by prematurity and/or other factors such as medical complications. As preterm infants have a high rate of learning difficulties, it is possible that factors associated with prematurity specifically affect the development of some regions of the brain associated with the regulation of executive function and sustained attention. Thirty-seven preterm infants without identified disabilities, and 74 due date and gender matched healthy full-term infants, participated in the study. The preterm infants were all less than 32 weeks gestation and less than 1500 grams birthweight. The findings of the study showed that preterm infants performed significantly more poorly than full-term infants at both 8 months after the expected date of delivery and 10-11 months chronological age on all measures of executive function and sustained attention. However the difference between preterm and full-term infants at 8 months after expected date of delivery was much less than at 10-11 months chronological age. The results suggested that the effects of maturation are greater than the effects of exposure to extrauterine environmental stimuli on the development of executive function and sustained attention.

Sun, J, Buys, N & Merrick, J 2013, Health Promotion: Strengthening Positive Health and Preventing Disease.
View description>>

The World Health Organization defines health promotion 'as the process of enabling people to increase control over and to improve, their health'. It moves beyond a focus on individual behaviour towards a wide range of social and environmental interventions. Discussions on how to define health promotion already emerged in the 1970s from the Lalonde report in Canada, which contained a health promotion strategy 'aimed at informing, influencing and assisting both individuals and organizations so that they will accept more responsibility and be more active in matters affecting mental and physical health'. Health promotion and health service, using a socio-ecological approach, has been effective to promote mental and physical health, and improve social functioning and social support in a range of population groups. A socio-ecological approach addresses the importance of the interaction between individual level characteristics, families, institutions, and community support to promote health to an optimal level. There is increasing evidence to indicate promoting resilience at both the individual and organisation levels is important to help individuals cope with daily stress challenges, and buffer the adverse effects of distress, abuse and neglect, psychological traumatic events, and disease. The key concepts of resilience promotion is structured around self-esteem, self-efficacy, optimism, goal orientation, autonomy, and the ability to seek social and environmental support. These concepts play an important role in improving quality of life, chronic disease conditions, increasing exercise levels, and reduction of risk health behaviours. In this special issue, we provide evidence to demonstrate the central concepts of health promotion around resilience at the individual and organisation and system levels which is important to children and youth quality of life and their learning outcomes; benefit employees' performance and health outcome; chronic disease; dental student st...

Xu, G, Zong, Y & Yang, Z 2013, Applied data mining, 1, CRC Press, USA.
View description>>

Data mining has witnessed substantial advances in recent decades. New research questions and practical challenges have arisen from emerging areas and applications within the various fields closely related to human daily life, e.g. social media and social networking. This book aims to bridge the gap between traditional data mining and the latest adv.

Abdallah, ME & Waldron, KJ 2013, 'Duty Factor and Leg Stiffness Models for the Design of Running Bipeds' in Mechanisms and Machine Science, Springer International Publishing, pp. 275-293.
View/Download from: Publisher's site
View description>>

© 2013, Springer International Publishing Switzerland. Supporting the design process for running biped robots, analytical models are presented for two aspects of running: the duty factor (DF) of the gait, and the stiffness value of the leg. For a given running speed, an optimal DF exists that minimizes the energy expenditure. We present a formula for the optimal DF based on a model of the energetics, and the results are compared to both human data and simulation results. In addition, a model is presented for the stiffness value of the leg as a function of the physical properties, speed, and DF. The Gait Resonance Point is proposed as a design target for compliant running. At this point, the gait matches the spring resonance and the stiffness value becomes independent of the DF.

Alavi, AH, Gandomi, AH, Mollahasani, A & Bazaz, JB 2013, 'Linear and Tree-Based Genetic Programming for Solving Geotechnical Engineering Problems' in Metaheuristics in Water, Geotechnical and Transport Engineering, Elsevier, pp. 289-310.
View/Download from: Publisher's site

Aljabri, A, Jiang, ZY, Wei, DB, Wang, XD & Tibar, H 2013, 'Modeling of Thin Strip Profile during Cold Rolling on Roll Crossing and Shifting Mill', Wiley, pp. 3001-3007.
View/Download from: Publisher's site

Al-Ohali, M & Burdon, S 2013, 'International Collaboration' in Higher Education Dynamics, Springer Netherlands, pp. 159-166.
View/Download from: Publisher's site
View description>>

This chapter explores the issues confronting higher education in Saudi Arabia as it moves towards globalisation of learning and research and the integration of its universities into national economic and social policy frameworks. A particular emphasis is placed on the processes necessary for university engagement with multinational corporations, both inside and outside the Kingdom. The authors stress, however, that international collaboration carries risks as well as rewards. Determining an appropriate development strategy for the higher education sector that balances those risks and rewards is critical to the Kingdom’s future.

Al-okaily, A, Hani, QB, Almazaydeh, L, Abuzaghleh, O & Chaczko, Z 2013, 'Designing and Integrating a New Model of Semi-Online Vehicle’s Fines Control System' in Lecture Notes in Electrical Engineering, Springer New York, pp. 1205-1217.
View/Download from: Publisher's site

Beyhan, B & Cetindamar, D 2013, 'No Escape from the Dominant Theories: The Analysis of Intellectual Pillars of Technology Management in Developing Countries' in Strategic Planning Decisions in the High Tech Industry, Springer London, pp. 11-34.
View/Download from: Publisher's site
View description>>

© 2013 Springer-Verlag London. All rights are reserved. This chapter aims to identify the intellectual bases of the technology management (TM) literature generated in developing countries using citation and co-citation analyses and answers the question of whether the intellectual bases of the TM literature created by authors in developing countries diverge from those of the global TM literature. Based on a comprehensive bibliometric analysis of ten technology-innovation management (TIM) specialty journals through the period 1998-2007, this study produces three important findings. First, the TM literature generated in developing countries is dominated by the knowledge and theories created in developed countries. Second, among these knowledge sources some authors from developing countries focus on the specialties of developing countries, such as Kim and Lall, come into prominence; however, these authors are not even mentioned in the previous bibliometric studies covering overall TM research. Finally, the researchers in developing countries tackle with the issues or topics specific to their own context through combining three major bulks of literature. These are (1) resource-based view (RBV)/core competencies and organizational learning-related research; (2) literature dealing with the evolutionary theorizing on economic change and growth, and (3) literature related to technological capabilities, technology transfer, and industrialization in developing countries.

Bohnen, F, Stolpe, M, Deuse, J & Morik, K 2013, 'Using a Clustering Approach with Evolutionary Optimized Attribute Weights to Form Product Families for Production Leveling' in Lecture Notes in Production Engineering, Springer Berlin Heidelberg, pp. 189-202.
View/Download from: Publisher's site

Burdon, S & Al-Ohali, M 2013, 'Higher Education in Saudi Arabia' in Smith, L & Abouammoh, A (eds), Higher Education in Saudi Arabia - Achievements, Challenges and Opportunities, Springer Netherlands, Dordrecht, pp. 159-167.
View/Download from: Publisher's site
View description>>

The decision to move down a path of international higher education collaboration is not one that should be taken lightly by Saudi universities. Significant resources and investment in time and money are required for success. This chapter will explore the issues confronting higher education in Saudi Arabia as it moves towards globalization of learning and research and the integration of its universities into national economic and social policy frameworks.

Burton, GJ, Sheng, D & Romero, E 2013, 'Volumetric behavior of unsaturated-reconstituted soils' in Advances in Unsaturated Soils, pp. 411-416.
View description>>

The vast majority of unsaturated soil research is completed on compacted soils. Due to ease of laboratory testing, specimens are typically prepared dry of optimum and often with high void ratios (low dry density) to capture the phenomena of collapse. Compacted soils have significant impacts on infrastructure, but the inherent effects of structure within each sample are difficult to differentiate from the effects of suction (and degree of saturation) in the laboratory. Although significant advances have been made with techniques such as MIP and ESEM. The difficulties of producing and unsaturated sample from slurry have largely limited the amount of published literature on samples reconstituted from slurry. In this paper, the available published data sets of Jennings and Burland (1962), Vicol (1990) and Cunningham (2000) are reviewed. Predictions of the volume change behavior are then made.

Cao, L, Motoda, H, Srivastava, J, Lim, EP, King, I, Yu, PS, Nejdl, W, Xu, G, Li, G & Zhang, Y 2013, 'Behavior and Social Computing' in Cao, L, Motoda, H, Srivastava, J, Lim, E-P, King, I, Yu, PS, Nejdl, W, Xu, G, Li, G & Zhang, Y (eds), Behavior and Social Computing, Springer International Publishing, Germany, pp. v-vi.
View/Download from: Publisher's site

Chaczko, Z & Resconi, G 2013, 'Assessing the Quality of WSAN Topologies' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 174-182.
View/Download from: Publisher's site

Chanan, AP, Vigneswaran, S, Kandasamy, J & Simmons, B 2013, 'Wastewater Management Journey – From Indus Valley Civilisation to the Twenty-First Century' in Sharma, SK & Sanghi, R (eds), Wastewater Reuse and Management, Springer Netherlands, Germany, pp. 3-18.
View/Download from: Publisher's site
View description>>

Throughout the human existence on this planet, water and wastewater infrastructure never attracted as much public attention as it did during the second half of the nineteenth century. Following extensive debate on appropriate solutions for problems associated with hygiene and public health, options were chosen from several competing alternatives, while others foreclosed. Sociocultural impacts of these late nineteenth century decisions have lasted until the present day [1]. The shape of our cities and centralised approach embedded within sanitary engineers mindset today owe its existence to the options selected nearly 200 years ago. The current selection of water and wastewater management options, particularly in the developing world, has the opportunity to learn from 200 years of experience. It is critical that these lessons influence the design of future wastewater management systems because undoubtedly the decisions being made today will impact on the future generations. This chapter highlights the development of wastewater management through human evolution and settlement history.

Daim, T, Cetindamar, D, Beyhan, B & Basoglu, N 2013, 'Strategic Planning Decisions: An Overview' in Strategic Planning Decisions in the High Tech Industry, Springer London, pp. 1-10.
View/Download from: Publisher's site
View description>>

© 2013 Springer-Verlag London. All rights are reserved. Who would have thought 10 years ago that Apple would be a phone company or even a music company? As we are witnessing another technological discontinuity, once again we realize the importance of making informed decisions in the high-tech industry. This book provides a snapshot of the tools being developed to address the uncertainty induced by technological discontinuities.

Dickson-Deane, C & Deane, WA 2013, 'Implementing Infrastructure-Related Education Technology Solutions at the Government Primary and Secondary School Level' in Advances in Educational Technologies and Instructional Design, IGI Global, pp. 343-363.
View/Download from: Publisher's site
View description>>

Advances in technology and the increased competitiveness of the world’s economy have changed the landscape for developing countries. One of the primary steps many countries have taken to be competitive is to infuse technology into the education system, using funds provided by international funding agencies. This case study discusses the SITUP project, which uses technology to enhance a portion of the education system in a developing country. These enhancements include infusion of technology into the delivery systems, introducing skill-based efficiencies for educators and general infrastructure-related access. The case highlights the importance of team buy-in, clearly identifying change management and general reporting processes and, most importantly, including all stakeholders through each phase of the project. Vendor-related solutions, lack of instructional design methodologies, creating processes, and identifying appropriate risks are some of the challenges discussed. Lessons learned and recommendations for similar projects that occur within difficult economic and political climates are presented.

Ding, G 2013, 'Cost or benefit?' in Building in Value: Pre-Design Issues, pp. 149-165.
View/Download from: Publisher's site
View description>>

Editorial comment Cost-benefit analysis (CBA) is generally associated with the selection of alternative developments or projects that are competing for limited or scarce resources. The most common use of CBA is in the selection of publicly funded projects where many possible uses of funds from government budgets exist but such funds are strictly limited and their use is subject to public scrutiny. The selection of those projects that are to proceed requires the use of some systematic method of appraising the competing alternatives and choosing those which provide the greatest benefits to the community - in other words, choosing the alternatives that will produce the best value for money.

Dyson, LE & Brady, F 2013, 'A Study of Mobile Technology in a Cape York Community: Its Reality Today and Potential for the Future' in Ormond-Parker, L, Corn, A, Obata, K & O'Sullivan, S (eds), Information Technology and Indigenous Communities, AIATSIS Research Publications, Canberra, pp. 9-26.
View description>>

This chapter presents a study of mobile technology adoption and use by an Aboriginal community in Cape York undertaken for the Wujal Wujal Aboriginal Shire Council. The installation of a Telstra 3G mobile phone network in January 2008 represented a major change in the provision of information and communication technologies (ICT) to this and many other communities in the Cape. The study showed high rates of ownership of mobile phones and MP3 players. Mobile phones had become an essential tool for communicating with family and friends and for work, and in addition people made good use of the multimedia and internet features of their phones. Key factors in the acquisition of mobile phones were identified as the superior cost management that mobiles offered over other lCT, and their multimedia functionality and portability. The total design of the mobile service in terms of hardware, functionality and billing options was seen as superior from a social construction perspective. Major deficits uncovered by the study include the limited mobile coverage in areas frequented by community members, the high costs of mobile phone calls, and the lack of recognition of the potential of mobile technology to develop capacity, improve services, and sustain cultural and language revitalisation.

Dyson, LE, Andrews, T, Smyth, R & Wallace, R 2013, 'Toward a Holistic Framework for Ethical Mobile Learning' in Berg, ZL & Muilenburg, LY (eds), Handbook of Mobile Learning, Routledge, New York, pp. 405-416.
View/Download from: Publisher's site
View description>>

As more universities, colleges and schools adopt mobile learning, concerns have been voiced regarding the emergence of unethical behaviour. This paper examines a range of ethical issues and analyses the reasons for them. A framework for an ethical approach to mobile learning is put forward in which harm minimization is balanced with both the need to prepare students for living in a mobile world and the benefits of an approach to learning which has advantages for students from diverse backgrounds. A case is made for the adoption of an ethic of responsibility by educators, administrators and students.

Eigner, M, Ernst, J, Roubanov, D, Deuse, J, Schallow, J & Erohin, O 2013, 'Product Assembly Information to Improve Virtual Product Development' in Lecture Notes in Production Engineering, Springer Berlin Heidelberg, pp. 303-313.
View/Download from: Publisher's site

El Saliby, I, Shon, HK & McDonagh, A 2013, 'Visible-light active doped titania for water purification: nitrogen and silver doping' in Lens, PNL, Virkutyte, J, Jegatheesan, V, Kim, SH & Al-Abed, S (eds), Nanotechnology for Water and Wastewater Treatment, IWA PUBLISHING, London, UK, pp. 189-208.
View description>>

Photocatalysis over semiconductors, mainly Ti02, has been employed and extensively studied over the past few decades (Malato et aI., 2009). The so-called "first generation photocatalYSIS" are characterised by their photoexcitation limited to the UV region of the solar spectrum. Nevertheless, many photocatalysts showed outstanding performance in decomposing a large number of pollutants of water and air. A number of water pollutants belong to the family of biorecalcitrant pollutants (non-biodegradable) and these include pharmaceutical and personal care products, industrial wastes, and a large number of pesticides/herbicides. Many of the emerging pollutants are resistant to conventional water treatment processes, noxious to the environment and some are classified as endoctine disrupting agents. The removal of non-biodegradable pollutants from wastewater poses a serious challenge for the water industry. Generally, advanced oxidation processes (AOP) are employed to achieve this goal. Heterogeneous photocatalysis, as part of AOP, is sometimes adopted as a tool to eliminate these contaminants. However, the high cost associated with the use of photocatalysis to treat such compounds has always been a disadvantage for its large-scale adoption in treatment processes. The high cost is mainly associated with: (1) the energy consumed for the UV light irradiation of the photocatalyst, (2) the energy required for the separation of the photocatalyst particles from water. A total of 40% of the solar light reaching the lithosphere is visible light, whereas UV light accounts only for 5% of the total solar radiation. The development of new photocatalysts that can effectively harvest visible light is crucial for making this technology viable in the waler treatment industry. The use of "second-generation riOz photocatalysts" to harvest visible light from solar energy is gaining popularity (Anpo, 1997). Most of the research involving the use of second generation TiOz photocatalysts has...

Farrelly, C, Sun, J & Mack, F 2013, 'Impact of stress on depression and anxiety in dental students and professionals' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 157-180.
View description>>

Recent evidence has highlighted stress and poor mental health as risk factors for further physical and psychological illness. Dental students have frequently been shown to suffer higher prevalence of stress and psychological dysfunction, though few studies use relevant comparison groups when reporting these measures. In this chapter we aim to examine the difference in psychological dysfunction between dental students and students in other disciplines. Questionnaires were distributed to cohorts of dental students, undergraduate students and dental professionals around Australia. The DASS-21 was used to assess all participants' depression and anxiety and a modified version of the Dental Environmental Stress Questionnaire (DES) called the Student Environmental Stress (SES) Scale was used to assess students stress only. Demographic details for all participants were also collected. Dental students were significantly more stressed than dentists, and there were also significant difference between anxiety and depression between the three groups. Dental students only had significantly higher scores on one aspect of the extracted SES components. Linear regression showed a consistent significant relationship between student stress and all aspects of psychological dysfunction. The results of this study indicate that dental students do suffer higher psychological stress then dentists in the workforce. It also demonstrates the stress levels of dental students had higher level stress than undergraduate students in other discipline in academic study. The relationship between high student stress and psychological dysfunction enforces the importance of employing stress reduction program in the context of Australian universities and in particular dental students' academic program.

Feng, X, Zhang, W, Zhao, X, Zhang, Y & Gao, Y 2013, 'Probabilistic k-Skyband Operator over Sliding Windows' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 190-202.
View/Download from: Publisher's site

Fitch, R & McAllister, R 2013, 'Hierarchical Planning for Self-reconfiguring Robots Using Module Kinematics', Springer, Germany, pp. 477-490.
View/Download from: Publisher's site
View description>>

Reconfiguration allows a self-reconfiguring modular robot to adapt to its environment. The reconfiguration planning problem is one of the key algorithmic challenges in realizing self-reconfiguration. Many existing successful approaches rely on grouping modules together to act as meta-modules. However, we are interested in reconfiguration planning that does not impose fixed meta-module relationships but instead forms cooperative relationships between modules dynamically. This approach avoids the need to hand-code meta-module motions and potentially allows reconfiguration with fewer modules. In this paper we present a general two level reconfiguration framework. The top level plans in module-connector space using distributed dynamic programming. The lower level accepts a transition function for the kinematic model of the chosen module type as input. As an example, we implement such a transition function for the 3R, SuperBot-style module. Although not explored in this paper, this general approach is naturally extended to consider power use, clock time, or other quantities of interest. © 2013 Springer-Verlag.

Gandomi, AH & Alavi, AH 2013, 'Expression Programming Techniques for Formulation of Structural Engineering Systems' in Metaheuristic Applications in Structures and Infrastructures, Elsevier, pp. 439-455.
View/Download from: Publisher's site

Gandomi, AH, Alavi, AH & Talatahari, S 2013, 'Structural Optimization Using Krill Herd Algorithm' in Swarm Intelligence and Bio-Inspired Computation, Elsevier, pp. 335-349.
View/Download from: Publisher's site
View description>>

A new metaheuristic optimization algorithm, called krill herd (KH), has been recently proposed by Gandomi and Alavi. In this study, KH is introduced for structural optimization. For more verification, KH is subsequently applied to three design problems reported in the literature. The performance of the KH algorithm is further compared with various algorithms representative of the state of the art in the area. The comparisons show that the results obtained by KH can be better than the best solutions obtained by the existing methods in these three case studies. © 2013 Copyright © 2013 Elsevier Inc. All rights reserved.

Gandomi, AH, Alavi, AH & Talatahari, S 2013, 'Structural Optimization Using Krill Herd Algorithm' in Swarm Intelligence and Bio-Inspired Computation: Theory and Applications, pp. 335-349.
View/Download from: Publisher's site
View description>>

A new metaheuristic optimization algorithm, called krill herd (KH), has been recently proposed by Gandomi and Alavi. In this study, KH is introduced for structural optimization. For more verification, KH is subsequently applied to three design problems reported in the literature. The performance of the KH algorithm is further compared with various algorithms representative of the state of the art in the area. The comparisons show that the results obtained by KH can be better than the best solutions obtained by the existing methods in these three case studies.

Gandomi, AH, Yang, X-S, Talatahari, S & Alavi, AH 2013, 'Metaheuristic Algorithms in Modeling and Optimization' in Metaheuristic Applications in Structures and Infrastructures, Elsevier, pp. 1-24.
View/Download from: Publisher's site

Gill, AQ & Bunker, D 2013, 'SaaS Requirements Engineering for Agile Development' in Wang, X, Ali, N, Ramos, I & Vidgen, R (eds), Agile and Lean Service-Oriented Development: Foundations, Theory, and Practice, IGI Global, USA, pp. 64-93.
View description>>

The emergence of Software as a Service (SaaS) has made it possible to develop dynamic and complex business processes as eServices. The development of business processes as eServices (SaaS) can be assisted by the means of adaptive or agile development processes. The development of business processes in terms of SaaS require to perform SaaS requirements engineering (RE), which is an important phase of a software development process for the success of any project. The challenge here is how best to do SaaS RE (e.g. mapping business process to eServices) and select agile development practices for developing business processes in terms of SaaS. In order to address this challenge, an integrated agile RE model for SaaS project development environments is outlined within this chapter. The purpose of the proposed RE model is to aid in iteratively determining SaaS requirements in short iterations as opposed to the only first and onetime upfront phase of a development process. Each identified SaaS requirement or a set of requirements for a given iteration is linked to a single or set of specific agile practices for implementation in short iterations. This model can be used as a guideline by organisations wishing to understand the challenging task of mapping business processes to SaaS and its implementation by using agile software development processes or practices.

Hai, FI, Nghiem, LD & Modin, O 2013, 'Biocatalytic membrane reactors for the removal of recalcitrant and emerging pollutants from wastewater' in Handbook of Membrane Reactors, Elsevier, pp. 763-807.
View/Download from: Publisher's site
View description>>

© Woodhead Publishing Limited, 2013. All rights reserved. The potential fields of application of biocatalytic membrane reactors have widened considerably in recent years. Although biocatalytic membrane reactors, in general, are yet to achieve broad industrial application, in the not too far future they are expected to play a major role, not only for the production, transformation and valorization of raw materials but also for environmental remediations. This chapter comprehensively reviews the laboratory scale studies which demonstrate the potential of biocatalytic membrane reactors in wastewater treatment applications. Studies reported in the literature, however, serve as proof of concept only. Issues that need to be addressed in order to achieve scale-up of such systems have been discussed in this chapter.

Hasselmann, K, Jaeger, C, Leipold, G, Mangalagiu, D & Tàbara, JD 2013, 'Reframing the Problem of Climate Change' in Reframing the Problem of Climate Change: From Zero Sum Game to Win-Win Solutions, Routledge, pp. 131-159.
View/Download from: Publisher's site

Hussain, OK, Dillon, TS, Hussain, FK & Chang, EJ 2013, 'Understanding Risk and Its Importance in Business Activities' in Studies in Computational Intelligence, Springer Berlin Heidelberg, pp. 1-29.
View/Download from: Publisher's site
View description>>

Motivation: Nearly all of us have used the word risk in our conversations or have heard it in our daily life experience. To mention a few such situations: (i) you risk losing your driving license if you are caught drink driving; (ii) you risk your enrolment being cancelled if you are caught cheating; (iii) you risk losing your job if you don't improve your performance; (iv) your business is at risk if the current financial and economic situation does not improve; (v) you risk not reaching your job interview in Sydney on time on Monday if you leave from Perth by car on Friday. In all the above mentioned situations, risk is associated with an outcome that highlights losing a certain thing; for example losing a license, losing an enrolment, losing a job, losing a business, not reaching an interview on time. In all these examples, the thing which may be lost is considered an important one, hence the word 'losing' is associated with them. © 2013 Springer-Verlag Berlin Heidelberg.

Keshavarzi, A & Ball, J 2013, 'PIV measurements of coherent turbulent flow structure and bursting process around a scour hole' in Advances in River Sediment Research, pp. 111a-111a.
View description>>

The results of a series of experimental tests related to the flow characteristics in a scouring hole are presented in this paper. The experimental tests were carried out for five different stages of development of a scour hole. These stages are defined on the basis of experimental observation. The mechanisms of the development of the scour hole and flow characteristics were investigated in this study. The flow velocities were measured using Particle Image Velocimetry to characterize the mean velocity field and turbulent characteristics of flow in the scour hole. The measurements reveal a good understanding of the flow characteristics and bursting process and a strong recirculation in the hole. The results showed that upstream of the orifice, the transition probabilities of the stable events were higher than other transition probabilities. Therefore, the events of P11, P22, P33 and P44 were dominant when compared to others. This can be interpreted as an expectation that entrainment should occur at this location. These expectations are consistent with scour hole development and were confirmed by measuring scour hole depth upstream of the orifice.

Keshavarzi, A & Ball, J 2013, 'Study of coherent turbulent flow over the ripples using Particle Image Velocimetry' in Advances in River Sediment Research, pp. 112-112.
View description>>

The structure of turbulent flow over ripples is important to understand initiation of sediment entrainment and transport. The focus of this study is the measurement and analysis of the dominant bursting events and the flow structure over the ripples in the bed of a channel. One type of ripple with sinusoidal form was tested in this study. The velocities of flow over the ripples were measured in three dimensions using Particle Image Velocimetry (PIV). These velocities were measured at different points within the flow depth from the bed and at different longitudinal positions along the flume. It was found that upstream of the ripple crest, transition probability of stable organization (P44) were dominant when compared to other 15 transition probabilities. This can be interpreted as an expectation that entrainment should occur at this location. However, downstream of the ripple crest, transition probability of zone 2 to zone 3 (P23) and transition probability of zone 3 to 4 (P34) were more dominant than others. Therefore would be expected sedimentation to occur at this location.

Khalesi, S, Sun, J & Buys, N 2013, 'Effect of green tea consumption on obesity and hypertension: A systematic review protocol' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 181-190.
View description>>

Green tea is a healthy drink and evidence of its positive effect on both obesity and hypertension is emerging. This review protocol is concerned with the efficacy of green tea consumption in improving health status of people with obesity and hypertension. Interventional randomized or nonrandomized studies, as well as cross sectional studies, with a focus on the effect of green tea consumption on obesity and/or hypertension will be identified. Literature will be searched by two authors independently through Medline, PubMed, Scopus and Cochrane library. All articles from January 2003 to end of May 2013, which meet the inclusion/exclusion criteria, will be studied. Human studies analyzing the effect of green tea consumption on either obesity or hypertension or both, or respective indicators (oriental tea, anthropometry, abdominal fat, central fat, body mass index, blood lipid profile, metabolic syndrome, high blood pressure, systolic blood pressure and diastolic blood pressure, waist circumference and waist hip ratio) will be included. Study of indicators will only be included, if the endpoint data reports an association or correlation with obesity and/or hypertension. Only studies with focus on green tea, oriental tea or green tea extract or its catechins will be included. Studies with artificial catechins or catechins from sources other than green tea will not be included. Search terms will include green tea, Camellia sinensis, green tea extract, green tea catechins, green tea supplements with obesity, overweight, abdominal fat, central fat, metabolic syndrome, hypertension, blood pressure, anthropometry, waist circumference, waist/hip ratio and blood lipid profile.

Konrad, B, Lieber, D & Deuse, J 2013, 'Striving for Zero Defect Production: Intelligent Manufacturing Control Through Data Mining in Continuous Rolling Mill Processes' in Lecture Notes in Production Engineering, Springer Berlin Heidelberg, pp. 215-229.
View/Download from: Publisher's site

Kwok, NM, Wang, D, Ha, QP, Fang, G & Chen, SY 2013, 'Locally-Equalized Image Contrast Enhancement Using PSO-Tuned Sectorized Equalization' in Chatterjee, A & Siarry, P (eds), Computational Intelligence in Image Processing, Springer Berlin Heidelberg, Spinger-Verlag Berlin Heidelberg, pp. 21-36.
View/Download from: Publisher's site
View description>>

Contrast enhancement is a fundamental procedure in applications requiring image processing. Indeed, image enhancement contributes critically to the success of subsequent operations such as feature detection, pattern recognition and other higher-level processing tasks. Of interest among methods available for contrast enhancement is the intensity modification approach, which is based on the statistics of pixels in a given image. However, due to variations in the imaging condition and the nature of the scene being captured, it turns out that global manipulation of an image may be vulnerable to a noticeable quality degradation from distortion and noise. This chapter is devoted to the development of a local intensity equalization strategy together with mechanisms to remedy artifacts produced by the enhancement while ensuring a better image for viewing. To this end, the original image is subdivided randomly into sectors, which are equalized independently. A Gaussian weighting factor is further used to remove discontinuities along sector boundaries. To achieve simultaneously the multiple objectives of contrast enhancement and viewing distortion reduction, a suitable optimization algorithm is required to determine sector locations and the associated weighting factor. For this, a particle-swarm optimization algorithm is adopted in the proposed image enhancement method. This algorithm helps optimize the Gaussian weighting parameters for discontinuity removal and determine the local region where enhancement is applied. Following comprehensive descriptions on the methodology, this chapter presents some real-life images for illustration and verification of the effectiveness of the proposed approach.

Le, M, Nauck, D, Gabrys, B & Martin, T 2013, 'KNNs and Sequence Alignment for Churn Prediction' in Research and Development in Intelligent Systems XXX, Springer International Publishing, pp. 279-285.
View/Download from: Publisher's site

Lee, JH, Gu, N, Ostwald, MJ & Jupp, J 2013, 'Understanding Cognitive Activities in Parametric Design' in Communications in Computer and Information Science, Springer Berlin Heidelberg, pp. 38-49.
View/Download from: Publisher's site

Li, L, Xiao, H & Xu, G 2013, 'Recommending Related Microblogs' in Xu, G & Li, L (eds), Social Media Mining and Social Network Analysis, IGI Global, Hershey, USA, pp. 202-210.
View/Download from: Publisher's site
View description>>

Computing similarity between short microblogs is an important step in microblog recommendation. In this chapter, the authors utilize three kinds of approaches—traditional term-based approach, WordNet-based semantic approach, and topic-based approach—to compute similarities between micro-blogs and recommend top related ones to users. They conduct experimental study on the effectiveness of the three approaches in terms of precision. The results show that WordNet-based semantic similarity approach has a relatively higher precision than that of the traditional term-based approach, and the topic-based approach works poorest with 548 tweets as the dataset. In addition, the authors calculated the Kendall tau distance between two lists generated by any two approaches from WordNet, term, and topic approaches. Its average of all the 548 pair lists tells us the WordNet-based and term-based approach have generally high agreement in the ranking of related tweets, while the topic-based approach has a relatively high disaccord in the ranking of related tweets with the WordNet-based approach.

Lin, C-T 2013, 'ABC Intelligence on Fuzziness' in Studies in Fuzziness and Soft Computing, Springer Berlin Heidelberg, pp. 377-381.
View/Download from: Publisher's site

Liu, Q & Li, J 2013, 'Protein Binding Interfaces and Their Binding Hot Spot Prediction: A Survey' in Shen, B (ed), Translational Bioinformatics, Springer Netherlands, German, pp. 79-106.
View/Download from: Publisher's site
View description>>

In living organisms, genes are the blueprints or library, specifying instructions for building proteins. Proteins constitute the bulk of cells. Proteins mutual binding and interactions play a vital role in numerous functions and activities, such as signal transduction, enzymatic reactions, immunoreactions and inter-cellular communications. This survey provides basic knowledge of proteins and protein binding. First, we describe proteins fundamental elements, structures and functions. In Sect. 5.2, we present concepts related to protein binding and interactions. In Sect. 5.3, we explain why protein binding interfaces have a uneven distribution of binding free energy. In the Sects. 5.4 and 5.5, we explain why protein interfaces are complicated and how the current studies deal with this difficult problem. In Sect. 5.6, we present an overview on methods to model and predict binding free energy of protein interactions. Section 5.7 concludes this survey with a summary.

Lu, J 2013, 'Poem Recitation in the Ceremony for Da Ruan at Vito Conference Hall, Mol, Belgium, 6 Aug. 2011' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 15-16.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'A Glimpse of the Flood of Emails after the Sad News Was Spread' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 3-5.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Chinese Memorial Plaque and Memoriam Book' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 7-7.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Education' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 35-36.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Guest Editor in Special Issues of Journals' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 87-90.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Keynotes, Tutorials and Panels in Conferences' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 91-97.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Obituary in SCK Website: In Memoriam Da Ruan: http://www.sckcen.be/fr/Nouvelles/In-Memoriam-Da-Ruan' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 31-31.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Obituary: In Memoriam Prof. Dr. Da Ruan' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 19-23.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Publications' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 43-72.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Research Achievements' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 39-41.
View/Download from: Publisher's site

Lu, J & Kerre, E 2013, 'Scientific Career' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 37-37.
View/Download from: Publisher's site

Lu, J, Zhang, G, Ma, J, Wu, F, Wang, C, Zhang, J & Purba, JH 2013, 'In the Days since Da Passed Away: Our Best Adjunct Professor and Best Friend' in A Tribute to Prof. Dr. Da Ruan, Springer Berlin Heidelberg, pp. 121-136.
View/Download from: Publisher's site

Mahabaleswar, US & Saha, SC 2013, 'Analytical solution of a walters’ liquid b flow over a linear stretching sheet in a porous medium' in Focus on Porous Media Research, pp. 121-130.
View description>>

This Chapter represents the analytical solution of a two-dimensional linear stretching sheet problem involving a non-Newtonian liquid and suction by (a) invoking the boundary layer approximation and (b) using this result to solve the stretching sheet problem without using boundary layer approximation. The basic boundary layer equations for momentum, which are non-linear partial differential equations, are converted into non-linear ordinary differential equations by means of similarity transformation. The results reveal a new analytical procedure for solving the boundary layer equations arising in a linear stretching sheet problem involving a non-Newtonian liquid (Walters’ liquid B). The present study sheds light on the analytical solution of a class of boundary layer equations arising in the stretching sheet problem.

Manjula & Waldron, KJ 2013, 'Design for Inclusivity: Meaningful Collaboration with Differences' in Kumar, V, Schmiedler, J & Sreenivasan, SV (eds), Mechanisms and Machine Science, Springer International Publishing, pp. 1-16.
View/Download from: Publisher's site
View description>>

The ubiquitous availability of the internet for global networking has made collaborating by differences necessary. This is challenging because of the human history of tribal organizations. In this paper we draw from our 45 years of personal and professional journey together to elicit the skills that have helped us to successfully engage across racial, cultural, and academic differences. It required designing new rules of social and academic engagement that changed how we related with the “other”. We rely on these techniques daily to inform us on how to facilitate collaboration in any situation capitalizing on the diversity of thought, body, experience, belief, and/or training while focusing on the similarity of our journey.

Naderpour, M & Lu, J 2013, 'A Human Situation Awareness Support System to Avoid Technological Disasters' in Vitoriano, B, Montero, J & Ruan, D (eds), Atlantis Computational Intelligence Systems, Atlantis Press, Paris, France, pp. 307-325.
View/Download from: Publisher's site
View description>>

In many complex technological systems, accidents have primarily been attributed to human error. In the majority of these accidents the human operators were striving against significant challenges. They have to face data overload, the challenge of working with a complex system and the stressful task of understanding what is going on in the situation. Therefore, to design and implement complex technological systems where the information flow is quite high, and poor decisions may lead to serious consequences, Situation Awareness (SA) should be appropriately considered. A level 1 SA is highly supported in these systems through the various heterogeneous sensors and signal-processing methods but, for levels 2 and 3 there is still a need for concepts and methods. This work develops a system called the Human Situation Awareness Support System (HSASS) that supports the safety operators in an ever increasing amount of available risky status and alert information. The proposed system includes a new dynamic situation assessment method based on risk, which has the ability to support the operators understanding of the current state of the system, predict the near future, and suggest appropriate actions. The proposed system does not control the course of action and allows the human to act at his/her discretion in specific contexts.

Nguyen, TV & Eisman, JA 2013, 'Pharmacogenetics and Pharmacogenomics of Osteoporosis' in Genetics of Bone Biology and Skeletal Disease, Elsevier, pp. 151-167.
View/Download from: Publisher's site

Nie, F, Xu, D, Tsang, IW & Zhang, C 2013, 'A Flexible and Effective Linearization Method for Subspace Learning' in Fu, Y & Ma, Y (eds), Graph Embedding for Pattern Analysis, Springer New York, New York, pp. 177-203.
View/Download from: Publisher's site
View description>>

© Springer Science+Business Media New York 2013. In the past decades, a large number of subspace learning or dimension reduction methods [2,16,20,32,34,37,44] have been proposed. Principal component analysis (PCA) [32] pursues the directions of maximum variance for optimal reconstruction. Linear discriminant analysis (LDA) [2], as a supervised algorithm, aims to maximize the inter-class scatter and at the same timeminimize the intra-class scatter. Due to utilization of label information, LDA is experimentally reported to outperform PCA for face recognition, when sufficient labeled face images are provided [2] .

Peters, J, Mack, F & Sun, J 2013, 'Validation of shared decisionmaking questionnaire in the dental encounter' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 99-121.
View description>>

Communication within the dental encounter is paramount to successful clinical outcomes. In this chapter we examine the concept of shared decision-making (SDM) in patients who have received treatment for a single missing tooth. Method: A cross sectional study design was used for the study. Patients were recruited from a university dental clinic and a private dental practice. Exploratory factor analysis was used to identify the dimensions of patient's SDM, their level of dental knowledge and their treatment satisfaction. Results: Exploratory factor analysis showed that 9 factors were extracted from the questionnaire. Overall, the 9 factor structure had a high level of reliability for each individual dimension. Of the 108 participants, only 26.5% were exposed to SDM. Independent sample t tests showed that there was no significant difference between the SDM group and comparison group on levels of denture knowledge, post treatment functional and economic satisfaction. However, a significant difference was seen in regards to knowledge of other treatment alternatives and post treatment aesthetic/social satisfaction, with the SDM group reporting higher levels. Conclusions: The results suggest that a 9 factor solution can be used to assess the patient's experience in the dental encounter. In regards to the use of SDM in the dental encounter, further research is required using a larger sample size from an increased number of dental practices. However, SDM is an important component of clinical dental practice and should be further explored in clinical dentistry.

Peters, J, Sun, J & Mack, F 2013, 'Association of shared decisionmaking to knowledge and treatment satisfaction in dental patients' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 123-155.
View description>>

Shared decision making (SDM) is an approach in which the clinician and patient go through all stages of the decision making process together. The use of SDM has been thoroughly explored in clinical medicine, however little research has examined SDM in dentistry. In this chapter we examine the use of SDM in patients who have received treatment for missing teeth. Method: A cross sectional study design was used to assess patients from a university dental clinic and a private dental practice. Patients were required to complete the SDM questionnaire. Results: Of the 144 participants, only 29.9% were exposed to SDM. The results of multiple linear regression suggested that the provision of SDM in the dental encounter, led to an increase in patient's knowledge of treatment alternatives and post treatment aesthetic/social satisfaction. However, the provision of SDM in the dental encounter did not lead to an increase in denture knowledge, post treatment functional satisfaction or post treatment economic satisfaction. Multiple linear regression also identified pre-treatment self esteem, oral health beliefs and attitudes and pretreatment masticatory functioning as factors that mediate the relationship between SDM and the outcome variables. Conclusion: Decision-making in dentistry and the outcomes of dental treatment is a multifocal complex process. While this study demonstrates the importance of SDM in achieving favourable clinical outcomes, further research is required examining the interaction of patient factors with SDM. In order to further understand decision making in dentistry, further research should focus on examining the use of SDM in other facets of dentistry.

Peynot, T, Fitch, R, McAllister, R & Alempijevic, A 2013, 'Resilient Navigation through Probabilistic Modality Reconfiguration', Springer Verlag, Berlin, Germany, pp. 75-88.
View/Download from: Publisher's site
View description>>

This paper proposes an approach to achieve resilient navigation for indoor mobile robots. Resilient navigation seeks to mitigate the impact of control, localisation, or map errors on the safety of the platform while enforcing the robot's ability to achieve its goal. We show that resilience to unpredictable errors can be achieved by combining the benefits of independent and complementary algorithmic approaches to navigation, or modalities, each tuned to a particular type of environment or situation. In this paper, the modalities comprise a path planning method and a reactive motion strategy. While the robot navigates, a Hidden Markov Model continually estimates the most appropriate modality based on two types of information: context (information known a priori) and monitoring (evaluating unpredictable aspects of the current situation). The robot then uses the recommended modality, switching between one and another dynamically. Experimental validation with a SegwayRMP-based platform in an office environment shows that our approach enables failure mitigation while maintaining the safety of the platform. The robot is shown to reach its goal in the presence of: 1) unpredicted control errors, 2) unexpected map errors and 3) a large injected localisation fault. © 2013 Springer-Verlag.

Piyathilaka, L & Kodagoda, S 2013, 'Human Activity Recognition for Domestic Robots.' in Alvarez, LM, Corke, PI & Roberts, JM (eds), Field and Service Robotics - Results of the 9th International Conference, December 9-11, 2013, Brisbane, Australia, Springer, Springer, pp. 395-408.
View/Download from: Publisher's site

Prasad, M, Lin, C-T, Yang, C-T & Saxena, A 2013, 'Vertical Collaborative Fuzzy C-Means for Multiple EEG Data Sets' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 246-257.
View/Download from: Publisher's site

Resconi, G, Braun, R & Chaczko, Z 2013, 'Geometry of a Sensor Networks' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 507-512.
View/Download from: Publisher's site

Saco, PM & Rodríguez, JF 2013, '2.14 Modeling Ecogeomorphic Systems' in Treatise on Geomorphology, Elsevier, pp. 201-220.
View/Download from: Publisher's site

Saco, PM & Rodríguez, JF 2013, 'Modeling Ecogeomorphic Systems' in Treatise on Geomorphology, pp. 201-220.
View/Download from: Publisher's site
View description>>

Numerical simulations of ecogeomorphic systems have become one of the most important tools when trying to understand the coevolution of and feedbacks between biota and landforms. This chapter presents recent advances in ecogeomorphological modeling in the areas of fluvial channel systems, catchment landform evolution, semi-arid systems, tidal wetlands, and aeolian dune fields. A variety of modeling approaches and examples of applications are presented, and prospects for future research in this area are discussed. © 2013 Elsevier Inc. All rights reserved..

Sahab, MG, Toropov, VV & Gandomi, AH 2013, 'A Review on Traditional and Modern Structural Optimization' in Metaheuristic Applications in Structures and Infrastructures, Elsevier, pp. 25-47.
View/Download from: Publisher's site

Shrestha, CK, Khabbaz, H & Keshavarzi, A 2013, 'Flow structure at downstream side of two sequential bridge piers' in Advances in River Sediment Research, pp. 95-95.
View description>>

The bridge piers in rivers are normally installed in the form of two sequential piers in the flow direction. The flow structure between two bridge piers is important and very different from a single pier. In this study, the three dimensional flow structures at the downstream side of two sequential bridge piers have been investigated under no scouring condition. The results, obtained from a series of laboratory tests with both a single pier and two pier arrangements, are presented. Furthermore, the detailed results for two pier arrangements including the effects of different pier spacing on turbulence characteristics of the flow have been provided. Three dimensional flow velocities were measured at different grid points and different depths within the flow using a micro Acoustic Doppler Velocimeter (ADV). The velocity was measured at a frequency of 50 Hz. The results indicated that substantial flow structure interactions were generated with increasing the spacing between two piers. Moreover, the flow structure at the downstream side of the piers varied significantly. It was observed that when the spacing between bridge piers was greater than three times of the pier diameter, the effect of the upstream pier on flow structure at downstream side decreases and eventually piers acted as individual piers.

Sood, S 2013, 'E-Novation and Start-Up Companies' in Small and Medium Enterprises, IGI Global, pp. 1860-1872.
View/Download from: Publisher's site
View description>>

By 2010 the potential to launch a “startup-in-a-box” with an E-Novation framework (Pattinson and Low 2008) supported by social technologies to foster intense collaboration among core employees will become both a reality and essential. Only through a combination of framework and social technologies can startups and founding employees keep pace with the changing business landscape and generate a rapid amount of knowledge to sustain sufficient advantage in the market.

Sun, J & Buys, N 2013, 'Arts and culture activity participation' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 59-81.
View description>>

There are higher rates of mental illness and chronic disease among Aboriginal and Torres Strait Islander people, compared to the general Australian population. The arts play a central role in Aboriginal and Torres Strait Islander people’s health and well-being. This investigation examined the participation patter of art activities among Aboriginal and Torres Strait Islander Australians. Methods: In July 2012, 50 Aboriginal and Torres Strait Islander people, were recruited through a family festival to participate in a cross sectional survey. Participants completed a survey, which measured their monthly and annual participation of art activities. Findings demonstrate that approximately 86% of the Aboriginal and Torres Strait Islander people attended monthly at least one of the cultural venues and events surveyed. The areas where attendance rates were highest were: listening to music (86%), watching a movie (83%), reading (57%), reading to others (41.1%), telling stories (41.1%), and cooking (40.5%). The most popular cultural activities for Aboriginal and Torres strait Islander people to attend annually were attending the festival (83.7%), attending cinema (76.5% in the past year), attending concerts (52.3%), visiting museums (58.5%), watching plays, operas, dance performances or classical music concerts on TV (54.8%), and visiting historic sites (45.2%). In conclusion, Aboriginal and Torres Strait Islander people have a strong preference to attend arts and cultural activities and programs when these are related to listening music, movie watching, reading, reading to others, telling stories, and cooking for their daily life. On an annual participation level, they are more likely to attend festivals, cinema, concerts, museums, watch concert on TV, and visit historic sites.

Sun, J & Buys, N 2013, 'Australia: Child protection service delivery development' in Children, Violence and Bullying: International Perspectives, pp. 51-84.
View description>>

In this chapter we examine child protection service delivery model development in Australia. Child maltreatment and the need to protect children from harm and prevent child abuse and neglect has become a significant clinical and community concern in Queensland. In Queensland Health Strategic policy framework for children's and young people's health clearly provided strategic direction in which 'collaborative whole of government policy development and implementation initiatives' will be supported. Queensland Health, as a key stakeholder in the child protection work, has provided services in identification and report suspicion of child abuse and neglect. To continue this role, a contemporary and effective service model to incorporate strategies and implementation plan in child protection is needed. The aim of the Child Protection Service Delivery Project is to develop a comprehensive and effective child protection service model. It is critical that this framework is evidenced-based and informed by the best evidence and practices in child protection. Griffith University was committed to undertake the literature review to support of the work of the project team in Service Framework development and implementation. This report presents the key findings from the literature review for use by the project team.

Sun, J & Buys, N 2013, 'Can a community singing program promote social and emotional wellbeing?' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 59-69.
View description>>

There are higher rates of social and emotional difficulties among Aboriginal and Torres Strait Islander people, compared to the general Australian population. This is at least partly attributable to social and economic disadvantage, community and individual experiences of discrimination and abuse, loss of cultural identity and spiritual practices and poorer physical health. This investigation examined the health benefits of a community-based singing activity intervention on improving social and emotional wellbeing among Aboriginal and Torres Strait Islander Australians. Methods: From 2010–2011, 117 Aboriginal and Torres Strait Islander people, from the State of Queensland, Australia, were recruited through five communities to participate in a one-year community singing program. Participants completed a survey, in the preand post-intervention phases of the study, which measured social and emotional wellbeing. Results: Improvements in social and emotional wellbeing were observed for participants who participated in the singing program. In particular, there is a reduction in the following stressors: death of family member or close friend, job loss, seeing fights or people beaten up, trouble with the police, discrimination or racism, abuse or violent crime, alcohol related problems, and a member of family being sent to jail. In conclusion, the participative community singing program was successful in improving social and emotional wellbeing for Aboriginal adults.

Sun, J & Buys, N 2013, 'Challenges, opportunities and strategies in mental health promotion in China: Literature review of mental health promotion models' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 3-24.
View description>>

This chapter reviews the issue of high levels of mental health problems among Chinese children. It argues that current strategies used to address these problems are inadequate. As an alternative it explores the potential for a socio-ecological approach, focussed on mental health promotion and prevention, to address resilience-an emerging area to promote mental health. A key insight in this chapter is that mental health is determined by not only qualities of the individual child (i.e., cognitive and social competences) but also the characteristics of the systems in which children develop (i.e., a good sense of connectedness to family, peers and school community). The socio-ecological model, focussing on building children's skills, and placing greater emphasis on changing contexts and strengthening relationships, is seen as an effective approach to improve children's resilience, hence mental health. It is suggested that the socioecological approach should be used more widely in China to improve children's resilience and social and emotional wellbeing.

Sun, J & Buys, N 2013, 'Child abuse, neglect and maltreatment health service in Australia: A literature review' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 25-48.
View description>>

This chapter reviews child abuse, neglect and maltreatment health service practice in Australia. Child abuse, neglect and maltreatment and the need to protect children from harm and prevent abuse and neglect has become a significant public health concern. This chapter reviews current clinical and community practice in Australia in the following aspects: clinical governance, workforce development, early prevention and intervention, partnership, communication and coordination, and core activities development. It is recommended that the framework for child protection work should include the following: 1) Develop health service capacity with institution: Each health service district, hospital and departments need to develop service roles. 2) Develop district and department governance procedures. 3) Professional training provision. 4) Multidisciplinary teamwork. 5) Develop personnel role and responsibilities package within each department 6) Stipulate clinical handover and care coordination procedures and 7) Develop early identification and early intervention strategies.

Sun, J & Buys, N 2013, 'Community singing program and its effect on improving access to health services' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 27-37.
View description>>

Aboriginal and Torres Strait Islander individuals die younger than other Australians and have high rates of chronic disease. One of the main reasons is their lack of access to primary health services. This investigation examined the effect of a community-based singing activity intervention on increasing the level of access to primary health services among Aboriginal and Torres Strait Islander Australians. Methods: From 2010–2011, 117 Aboriginal and Torres Strait Islander people, from the State of Queensland, Australia, were recruited through five communities to participate in a one-year community singing program. Participants completed a survey, in the pre-and post-intervention phases of the study, which measured demographic variables and their use of health services. Results: Improvements in access to primary health services were observed in participants in the community singing program. Conclusions: The participative community singing program was successful in improving community controlled health service support and provided opportunities for Aboriginal adults of all ages and genders access to preventative and primary health services.

Sun, J & Buys, N 2013, 'Health benefits of Tai Chi' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 39-57.
View description>>

This chapter describes the psychometric validation of the Health Benefits of Tai Chi scale using a population of older Australians living in urban areas in Brisbane and the Gold Coast, Queensland, Australia. The aim of the scale is to measure the health benefits of Tai Chi. The validation of the scale included both internal consistency and construct validity tests. Exploratory factor analysis yielded six health benefit factors. The overall Cronbach’s alpha coefficient was high (.979), indicating a high level of internal consistency. Factor analysis revealed common patterns for many questions between the Australian sample and the factors identified in previous studies, indicating a high level of construct validity. Conclusions: This chapter supports the validity of the Health Benefits of Tai Chi Scale for assessing the perception and feelings of older Australians who practice Tai Chi.

Sun, J & Buys, N 2013, 'Relationship between resilience and quality of life in Chinese undergraduate university students' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 85-97.
View description>>

In this chapter we aim to investigate the relationship between resilience and quality of life (QOL) amongst undergraduate students across nine Beijing universities in China. A two stage cluster randomly selected sample and study design was used. There were 2,700 students were invited to attend to the study, and 2,046 students responded to the survey with high response rate of 75.8 percent. A standardised QOL questionnaire was used to assess university students perceived physical, mental health of QOL. Standardised resilience scales were used to determine their association with QOL. Multivariate linear regression analysis was used to analyse the association of QOL to resilience and social capital while demographic variables including age and gender were adjusted in the model. There were 26 percent of variances explained by resilience for physical health and 27.7 percent explained for mental health of QOL. The strongest explanatory variables in determining QOL were primarily focused on the individual's perception of self in the context of being a student (sense of self-acceptance, sense of autonomy, purpose of life, and personal growth) and also based on their involvement in the wider population (environmental mastery, and relations with others). These results suggest that resilience is an important factor to determine their QOL when they develop their ability to cope university life and be prepared to transit to the adult life.

Sun, J & Buys, N 2013, 'Using community singing as a culturally appropriate approach to promote wellbeing in people with depression' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 15-25.
View description>>

Aboriginal and Torres Strait Islander individuals continue to experience greater levels of depression than the general Australian population. This investigation examined the health benefits of a community-based singing activity intervention on depression among Aboriginal and Torres Strait Islander Australians. Methods: From 2010–2011, 45 Aboriginal and Torres Strait Islander people, from the State of Queensland, Australia, were recruited through five communities to participate in a one-year community singing program. Participants completed a survey, in the preand post-intervention phases of the study, which measured depression and singing related quality of life. Results: Improvements in quality of life were observed for both male and female participants with depression of all age groups in the community singing program. Male and female participants’ improvements included all aspects of the health related spectrum including relaxation and stress reduction, improved physical health, release negative feelings and emotion, improved general wellbeing and quality of life, positive attitude to life, greater enjoyment and happy feeling and enhanced purpose of life. Conclusions: The participative community singing program was successful in improving wellbeing for Aboriginal adults of all ages and genders with depression.

Sun, J & Buys, N 2013, 'Using the Illinois test of psycholinguistic ability to assess visual and auditory abilities in Chinese children with learning difficulties' in Health Promotion: Strengthening Positive Health and Preventing Disease, pp. 73-83.
View description>>

There is ample evidence to indicate that children with learning difficulties have visual-perceptual and auditory ability deficits. The aim of this chapter was to investigate whether the deficits in visual-perceptual and auditory abilities also exist in Chinese children in the schools. One-hundred-forty nine students aged 6 to 10 years who attended Child Growth and Development Clinics at Capital Institute of Pediatrics, Beijing, China were invited to attend the study, and 54 children who had no learning difficulties and had normal neurological development were randomly selected from the local schools as the control group. The results showed significant lower scores in visual-perceptual and auditory abilities in the study group than control group. To prevent children's learning difficulties, health promotion focusing on visual-perceptual and auditory abilities should be mandatory for children who have learning difficulties, even in the absence of neurological impairments and with normal general intelligence development.

Sun, J, Buys, N & Tatow, D 2013, 'Using participative community singing programs to improve health behaviours' in Health Promotion: Community Singing as a Vehicle to Promote Health, pp. 3-14.
View description>>

Aboriginal and Torres Strait Islander individuals continue to experience greater levels of chronic disease than the general Australian population. Evidence suggests that increased sedentary behaviours compared to the traditional healthy and active lifestyles of this population have contributed to this situation. This investigation aimed to examine the health benefits of a community-based singing activity intervention on chronic disease among Aboriginal and Torres Strait Islander Australians. Methods: From 2010–2011, 291 Aboriginal and Torres Strait Islander people, from the State of Queensland, Australia, were recruited through five communities to participate in a one-year community singing program. Participants completed a survey, in the pre-and postintervention phases of the study, which measured social connectedness, health behaviour (eg., smoking, alcohol consumption), frequency of exercise and art activities, and medication use. Results. Improvements in health behaviour were observed for both male and female participants with chronic disease of all age groups in the community singing program. Male and female participants’ improvements included decreased social loneliness and reduced smoking behaviour, increased social support, and increased participation in exercise and arts activities. Conclusions. The participative community singing program was successful in improving health status and increasing physical activity for Aboriginal adults of all ages and genders.

Szymanski, J, Chaczko, Z, Rodanski, B & Jablonski, A 2013, 'Enabling Design and Development of Wireless BANs Using 802.15.x Standards' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 475-482.
View/Download from: Publisher's site

Tao, M, Wu, C & Li, XB 2013, 'Numerical simulation of multiple fracture zones in underground dynamic loading processes' in Rock Dynamics and Applications - State of the Art, pp. 451-456.
View description>>

The excavation fracture responses around cavities in rock mass with initial stress were examined using three dimensional numerical modelling. In addition to the primary fractured zone in near field, numerical modelling generated the second fractured zone in far field, and an elastic non-fractured zone between the two fractured zones, i.e., the fractured zones and the non-fractured zone occur alternately around deep cavity. This finding proved that the zonal disintegration phenomenon can occur in underground excavation process.

Tran, BH, Center, JR & Nguyen, TV 2013, 'Translational Genetics of Osteoporosis: From Population Association to Individualized Prognosis' in Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, Wiley, pp. 376-388.
View/Download from: Publisher's site
View description>>

© 2013 American Society for Bone and Mineral Research. All rights reserved. Genetic factors play an important role in osteoporosis and fracture risk. The genetic studies performed over the past few decades have provided valuable insights into the pathophysiology of osteoporosis. With the decreasing costs of genome-wide scanning, consortia have been able to pool much larger populations in genome-wide association (GWA) studies for complex diseases that overcome some of the statistical problems that have plagued reproducibility from earlier studies in osteoporosis. A major priority in osteoporosis research at present is to develop prognostic models for identifying individuals who have a high risk of fracture. Research into the genetic background of osteoporosis and identification of osteoporosis-related genes can advance our understanding of pathophysiologic mechanisms of fracture. With a rapid improvement in genotyping technology, the next generation of GWA studies will be adding more variants at a low frequency to cover as many single-nucleotide polymorphisms (SNPs) as possible.

Waldron, KJ, Tokhi, MO & Virk, GS 2013, 'FRONT MATTER' in Nature-Inspired Mobile Robotics, WORLD SCIENTIFIC, USA, pp. i-xxii.
View/Download from: Publisher's site

Wang, D, Zhang, G & Zuo, H 2013, 'Fuzzy Number Ranking Based on Combination of Deviation Degree and Centroid' in Yang, Y, Ma, M & Liu, B (eds), Communications in Computer and Information Science, Springer Berlin Heidelberg, pp. 595-604.
View/Download from: Publisher's site

Wang, X, Zhang, C, Ji, Y, Sun, L, Wu, L & Bao, Z 2013, 'A Depression Detection Model Based on Sentiment Analysis in Micro-blog Social Network' in Lecture Notes in Computer Science, Springer Berlin Heidelberg, pp. 201-213.
View/Download from: Publisher's site

Ward, P, Liu, D, Waldron, K & Hasan, M 2013, 'OPTIMAL DESIGN OF A MAGNETIC ADHESION FOR CLIMBING ROBOTS' in Waldron, KJ & Tokhi, MO (eds), Nature-Inspired Mobile Robotics, World Scientific Publishing, Singapore, pp. 375-382.
View/Download from: Publisher's site
View description>>

© 2013 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. Designing a magnetic adhesion system for climbing robots requires careful selection of design parameters to achieve a feasible solution. There are many considerations which must be taken into account, such as, size constraints for the intended environment and robot configuration, the maximum load that can be supported by the climbing robot, and the expected air gaps during operation. With consideration of the design challenges, an optimal design for a magnetic adhesion system is presented. Based on the optimal design a prototype footpad has been constructed for use on an inchworm climbing robot and experimental results are presented.

Xu, G, Gu, Y & Yi, X 2013, 'On Group Extraction and Fusion for Tag-Based Social Recommendation' in Xu, G & Li, L (eds), Social Media Mining and Social Network Analysis, IGI Global, Hershey, USA, pp. 211-223.
View/Download from: Publisher's site
View description>>

With the recent information explosion, social websites have become popular in many Web 2.0 applications where social annotation services allow users to annotate various resources with freely chosen words, i.e., tags, which can facilitate users’ finding preferred resources. However, obtaining the proper relationship among user, resource, and tag is still a challenge in social annotation-based recommendation researches. In this chapter, the authors aim to utilize the affinity relationship between tags and resources and between tags and users to extract group information. The key idea is to obtain the implicit relationship groups among users, resources, and tags and then fuse them to generate recommendation. The authors experimentally demonstrate that their strategy outperforms the state-of-the-art algorithms that fail to consider the latent relationships among tagging data.

Yang, XS, Cui, Z, Xiao, R, Gandomi, AH & Karamanoglu, M 2013, 'Preface' in Swarm Intelligence and Bio-Inspired Computation: Theory and Applications, pp. xix-xxii.
View/Download from: Publisher's site

Yoo, C, Fitch, R & Sukkarieh, S 2013, 'Probabilistic Temporal Logic for Motion Planning with Resource Threshold Constraints' in Robotics, The MIT Press, pp. 457-464.
View/Download from: Publisher's site

Yoo, C, Fitch, R & Sukkarieh, S 2013, 'Probabilistic Temporal Logic for Motion Planning with Resource Threshold Constraints' in Roy, N, Newman, P & Srinivasa, S (eds), Robotics: Science and Systems VIII, Robotics: Science and Systems Foundation, UK, pp. 457-464.
View/Download from: Publisher's site
View description>>

© 2013 Massachusetts Institute of Technology. Temporal logic and model-checking are useful theoretical tools for specifying complex goals at the task level and formally verifying the performance of control policies. We are interested in tasks that involve constraints on real-valued energy resources. In particular, autonomous gliding aircraft gain energy in the form of altitude by exploiting wind currents and must maintain altitude within some range during motion planning. We propose an extension to probabilistic computation tree logic that expresses such real-valued resource threshold constraints, and present model-checking algorithms that evaluate a piecewise control policy with respect to a formal specification and hard or soft performance guarantees. We validate this approach through simulated examples of motion planning among obstacles for an autonomous thermal glider. Our results demonstrate probabilistic performance guarantees on the ability of the glider to complete its task, following a given piecewise control policy, without knowing the exact path of the glider in advance.

Yosun, T & Çetindamar, D 2013, 'Hidden Champions of Turkey' in Hidden Champions in CEE and Turkey, Springer Berlin Heidelberg, pp. 383-405.
View/Download from: Publisher's site

Zeng, C, Jia, W, He, X & Xu, M 2013, 'Recent Advances on Graph-Based Image Segmentation Techniques' in Image Processing, IGI Global, pp. 1323-1337.
View/Download from: Publisher's site
View description>>

Image segmentation techniques using graph theory has become a thriving research area in computer vision community in recent years. This chapter mainly focuses on the most up-to-date research achievements in graph-based image segmentation published in top journals and conferences in computer vision community. The representative graph-based image segmentation methods included in this chapter are classified into six categories: minimum-cut/maximum-flow model (called graph-cut in some literatures), random walk model, minimum spanning tree model, normalized cut model and isoperimetric graph partitioning. The basic rationales of these models are presented, and the image segmentation methods based on these graph-based models are discussed as the main concern of this chapter. Several performance evaluation methods for image segmentation are given. Some public databases for testing image segmentation algorithms are introduced and the future work on graph-based image segmentation is discussed at the end of this chapter.

Zong, Y & Xu, G 2013, 'Clustering Algorithms for Tags' in Xu, G & Li, L (eds), Social Media Mining and Social Network Analysis, IGI Global, Hershey, USA, pp. 39-53.
View/Download from: Publisher's site
View description>>

With the development and application of social media, more and more user-generated contents are created. Tag data, a kind of typical user generated content, has attracted lots of interests of researchers. In general, tags are the freely chosen textual descriptions by users to label digital data sources in social tagging systems. Poor retrieval performance remains a major problem of most social tagging systems resulting from the severe difficulty of ambiguity, redundancy, and less semantic nature of tags. Clustering method is a useful tool to increase the ability of information retrieval in the aforementioned systems. In this chapter, the authors (1) review the background of state-of-the-art tagging clustering and the tag data description, (2) present five kinds of tag similarity measurements proposed by researchers, and (3) finally propose a new clustering algorithm for tags based on local information that is derived from Kernel function. This chapter aims to benefit both academic and industry communities who are interested in the techniques and applications of tagging clustering.

Abbas, SM, Sevimli, O, Heimlich, MC, Esselle, KP, Kimiaghalam, B, Foroughi, J & Safaei, F 2013, 'Microwave Characterization of Carbon Nanotube Yarns For UWB Medical Wireless Body Area Networks', IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 10, pp. 3625-3631.
View/Download from: Publisher's site

Abdal-hay, A, Tijing, LD & Lim, JK 2013, 'Characterization of the surface biocompatibility of an electrospun nylon 6/CaP nanofiber scaffold using osteoblasts', Chemical Engineering Journal, vol. 215-216, pp. 57-64.
View/Download from: Publisher's site
View description>>

The purpose of this research is to improve the biocompatibility of bone tissue engineering scaffolds using a one-step electrospinning process. Calcium phosphate (CaP) was coated on the surface of nylon 6 (N6) nanofibers to form an ultrathin layer, thereby increasing surface roughness and wettability of the N6 nanofiber membrane in order to further improve implant tissue integration. The morphology, composition, chemical interaction bonding and mechanical properties of CaP-coated N6 nanofibers were characterized. The wettability of the scaffold was measured in terms of the water contact angle, and the results indicated that N6 fibers coated with an ultrathin layer of CaP exhibited an excellent surface wettability (water contact angle = 0°). Mechanical testing revealed higher properties of coated CaP layers compared to a plain N6 mat. The biological response induced by the surface modifications of N6 fibers was evaluated by in vitro cell culture with MC3T3-E1 osteoblasts cells. It was found that CaP-coated N6 nanofibrous matrices definitely favored cell proliferation, with the efficiency dependent upon the coating technique. A combination of a nanoscale fibrous structure and a CaP coating could mimic the structure, composition and function of bone tissues

Abdul-Hadi, A, Mansor, S, Pradhan, B & Tan, CK 2013, 'Seasonal variability of chlorophyll-a and oceanographic conditions in Sabah waters in relation to Asian monsoon—a remote sensing study', Environmental Monitoring and Assessment, vol. 185, no. 5, pp. 3977-3991.
View/Download from: Publisher's site

Abdul-Halim, N-S, Whitten, PG & Nghiem, LD 2013, 'Characterising poly (vinyl chloride)/Aliquat 336 polymer inclusion membranes: Evidence of phase separation and its role in metal extraction', Separation and Purification Technology, vol. 119, pp. 14-18.
View/Download from: Publisher's site

Abdullahi, S & Pradhan, B 2013, 'Applied Spatial Analysis and Policy'.

Abedin, MJ, Masjuki, HH, Kalam, MA, Sanjid, A, Rahman, SMA & Masum, BM 2013, 'Energy balance of internal combustion engines using alternative fuels', Renewable and Sustainable Energy Reviews, vol. 26, pp. 20-33.
View/Download from: Publisher's site

Abeywardena, D, Kodagoda, S, Dissanayake, G & Munasinghe, R 2013, 'Improved State Estimation in Quadrotor MAVs A Novel Drift-Free Velocity Estimator', IEEE ROBOTICS & AUTOMATION MAGAZINE, vol. 20, no. 4, pp. 32-39.
View/Download from: Publisher's site
View description>>

In this article, we presented a novel state estimator for quadrotor MAVs, where clear improvements in estimates stemming from the incorporation of quadrotor-specific dynamical constraints were demonstrated. Our design is based on an EKF and is capable of estimating both roll and pitch angles of the attitude, in addition to X and Y components of the body frame translational velocities within a bounded error. This estimator is applied to inertial data gathered from real-world flight experiments. The resulting attitude and velocity estimates obtained match closely with the ground truth and are drift free.

Afshar, S, Cohen, G, Wang, R, Schaik, AV, Tapson, J, Lehmann, T & Hamilton, TJ 2013, 'The Ripple Pond: Enabling Spiking Networks to See', Frontiers in Neuroscience, no. 7 NOV.
View/Download from: Publisher's site
View description>>

In this paper we present the biologically inspired Ripple Pond Network (RPN),a simply connected spiking neural network that, operating together withrecently proposed PolyChronous Networks (PCN), enables rapid, unsupervised,scale and rotation invariant object recognition using efficient spatio-temporalspike coding. The RPN has been developed as a hardware solution linkingpreviously implemented neuromorphic vision and memory structures capable ofdelivering end-to-end high-speed, low-power and low-resolution recognition formobile and autonomous applications where slow, highly sophisticated and powerhungry signal processing solutions are ineffective. Key aspects in the proposedapproach include utilising the spatial properties of physically embedded neuralnetworks and propagating waves of activity therein for information processing,using dimensional collapse of imagery information into amenable temporalpatterns and the use of asynchronous frames for information binding.

Afshar-Mazandaran, R & Khabbaz, H 2013, 'Evaluating the Bearing Capacity of a Soil Layer Overlying Rigid Substratum Using a Modified Failure Mechanism Based on Limit State Analysis', ADVANCES IN CIVIL AND INDUSTRIAL ENGINEERING, PTS 1-4, vol. 353-356, pp. 806-814.
View/Download from: Publisher's site
View description>>

The bearing capacity of shallow foundations resting on a soil layer with a finite depth over bedrock has been studied for years by many investigators. Farzaneh et al (2010) introduced a rigorous bearing capacity analysis based on the upper bound state theorem, using a log-spiral surface algorithm. This paper presents a thorough evaluation of this collapse mechanism and subsequently, a modified failure mechanism is introduced. The collapse mechanism consists of rigid blocks under combined rotational and transitional movements. The effects of the loading parameters on bearing capacity results are then discussed. The findings of this study are compared with the original limit state mechanism as well as previously published solutions, emphasising the accuracy and efficiency of the modified mechanisms. Furthermore, parametric studies are carried out to evaluate the ultimate bearing capacity of shallow foundations resting on a restricted soil, layer using the proposed mechanism. Design tables are finally presented for practical use in geotechnical engineering. © (2013) Trans Tech Pudlications, Switzerland.

Aghdamy, S, Wu, C & Griffith, M 2013, 'Simulation of Retrofitted Unreinforced Concrete Masonry Unit Walls under Blast Loading', International Journal of Protective Structures, vol. 4, no. 1, pp. 21-44.
View/Download from: Publisher's site
View description>>

This paper describes an investigation into the effectiveness of using spray-on nano-particle reinforced polymer and aluminium foam as new types of retrofit material to prevent the breaching and collapse of unreinforced concrete masonry walls subjected to blast over a whole range of dynamic and impulsive regimes. Material models from the LS-DYNA material library were used to model the behaviors of each of the materials and its interface for retrofitted and unretrofitted masonry walls. Available test data were used to validate the numerical models. Using the validated LS-DYNA numerical models, the pressure-impulse diagrams for retrofitted concrete masonry walls were constructed. The efficiency of using these retrofits to strengthen the unreinforced concrete masonry unit (CMU) walls under various pressures and impulses was investigated using pressure-impulse diagrams. Comparisons were made to find the most efficient retrofits for masonry walls against blasts.

Agrawal, A, Azabi, YO & Rahman, BMA 2013, 'Stacking the Equiangular Spiral', IEEE Photonics Technology Letters, vol. 25, no. 3, pp. 291-294.
View/Download from: Publisher's site

Agrawal, A, Tiwari, M, Azabi, YO, Janyani, V, Rahman, BMA & Grattan, KTV 2013, 'Ultrabroad supercontinuum generation in tellurite equiangular spiral photonic crystal fiber', Journal of Modern Optics, vol. 60, no. 12, pp. 956-962.
View/Download from: Publisher's site

Aguilera, RP & Quevedo, DE 2013, 'Stability Analysis of Quadratic MPC With a Discrete Input Alphabet', IEEE Transactions on Automatic Control, vol. 58, no. 12, pp. 3190-3196.
View/Download from: Publisher's site

Aguilera, RP, Lezana, P & Quevedo, DE 2013, 'Finite-Control-Set Model Predictive Control With Improved Steady-State Performance', IEEE Transactions on Industrial Informatics, vol. 9, no. 2, pp. 658-667.
View/Download from: Publisher's site
View description>>

Finite-control-set model predictive control (FCS-MPC) is a novel and promising control scheme for power converters and drives. Many practical and theoretical issues have been presented in the literature, showing good performance of this technique. The present work deals with one of the most relevant aspects of any controller, namely, the steady-state operation. As will be shown, basic FCS-MPC formulations can be enhanced to achieve a reduced average steady-state error. As an illustrative example, we apply our proposal to a simple H-Bridge power converter. Experimental results were carried out to verify the performance obtained by the proposed predictive strategies. © 2012 IEEE.

Ahmed, LA, Center, JR, Bjørnerem, Å, Bluic, D, Joakimsen, RM, Jørgensen, L, Meyer, HE, Nguyen, ND, Nguyen, TV, Omsland, TK, Størmer, J, Tell, GS, van Geel, TACM, Eisman, JA & Emaus, N 2013, 'Progressively increasing fracture risk with advancing age after initial incident fragility fracture: The Tromsø Study', Journal of Bone and Mineral Research, vol. 28, no. 10, pp. 2214-2221.
View/Download from: Publisher's site
View description>>

ABSTRACT   The risk of subsequent fracture is increased after initial fractures; however, proper understanding of its magnitude is lacking. This population-based study examines the subsequent fracture risk in women and men by age and type of initial incident fracture. All incident nonvertebral fractures between 1994 and 2009 were registered in 27,158 participants in the Tromsø Study, Norway. The analysis included 3108 subjects with an initial incident fracture after the age of 49 years. Subsequent fracture (n = 664) risk was expressed as rate ratios (RR) and absolute proportions irrespective of death. The rates of both initial and subsequent fractures increased with age, the latter with the steepest curve. Compared with initial incident fracture rate of 30.8 per 1000 in women and 12.9 per 1000 in men, the overall age-adjusted RR of subsequent fracture was 1.3 (95% CI, 1.2–1.5) in women, and 2.0 (95% CI, 1.6–2.4) in men. Although the RRs decreased with age, the absolute proportions of those with initial fracture who suffered a subsequent fracture increased with age; from 9% to 30% in women and from 10% to 26% in men, between the age groups 50–59 to 80+ years. The type of subsequent fracture varied by age from mostly minor fractures in the youngest to hip or other major fractures in the oldest age groups, irrespective of type and severity of initial fracture. In women and men, 45% and 38% of the subsequent hip or other major fractures, respectively, were preceded by initial minor fractures. The risk of subsequent fracture is high in all age groups. At older age, severe subsequent fracture types follow both clinically severe and minor initial incident fractures. Any fragility fracture in the elderly reflects the need for specific osteoporosis management to reduce further fracture risk. © 2013 American Society for Bone and Mineral Research...

Akbarnezhad, A, Ong, KCG, Tam, CT & Zhang, MH 2013, 'Effects of the Parent Concrete Properties and Crushing Procedure on the Properties of Coarse Recycled Concrete Aggregates', Journal of Materials in Civil Engineering, vol. 25, no. 12, pp. 1795-1802.
View/Download from: Publisher's site
View description>>

Due to its considerably lower embodied carbon and making use of industrial by-products including fly ash and ground granulated blast-furnace slag, geopolymer concrete (GPC) is considered as a sustainable alternative to Portland cement (OPC) concrete. However, prior to granting GPC a green label and encouraging its widespread use, a number of other important possible impacts associated with this new material throughout its life cycle need to be further investigated. One of the important aspects of sustainability which has received little attention with regards to GPC is the end-of-life impact. While end-of-life strategies such as recycling and reuse have been widely investigated for conventional concrete, the applicability of such strategies to GPC has not been investigated. This paper presents the results of an experimental study conducted to investigate the recyclability of GPC. Basic properties of recycled geopolymer aggregates (RGAs) including water absorption, density and Los Angeles abrasion loss as well as the effects of size of RGA on these properties were investigated. In addition, the effects of the different replacement ratios of coarse RGA for coarse natural aggregates on the properties of the new recycled aggregate geopolymer concrete (RAG) including compressive strength, flexural strength and modulus of elasticity were investigated. The RGA and RAG properties were compared with those of recycled OPC concrete aggregate (RCA) and recycled aggregate OPC concrete (RAC) produced under relatively similar conditions.

AKCAPINAR SEZER, E, PRADHAN, B & GOKCEOGLU, C 2013, 'Erratum to: Manifestation of an adaptive neuro-fuzzy model on landslide susceptibility mapping: Klang valley, Malaysia [Expert Systems with Applications', Expert systems with applications, vol. 40, no. 6.

Al Rawashdeh, S, Ruzouq, R, Al-Fugara, A, Pradhan, B, Ziad, SHA-H & Ghayda, AR 2013, 'Monitoring of Dead Sea water surface variation using multi-temporal satellite data and GIS', Arabian Journal of Geosciences, vol. 6, no. 9, pp. 3241-3248.
View/Download from: Publisher's site

AlAamri, H, Abolhasan, M, Franklin, D & Lipman, J 2013, 'Optimised relay selection for route discovery in reactive routing', AD HOC NETWORKS, vol. 11, no. 1, pp. 70-88.
View/Download from: Publisher's site
View description>>

On-demand routing protocols have the potential to provide scalable information delivery in large ad hoc networks. The novelty of these protocols is in their approach to route discovery, where a route is determined only when it is required by initiating a route discovery procedure. Much of the research in this area has focused on reducing the route discovery overhead when prior knowledge of the destination is available at the source or by routing through stable links. Hence, many of the protocols proposed to date still resort to flooding the network when prior knowledge about the destination is un-available. This paper proposes a novel routing protocol for ad hoc networks, called On-demand Tree-based Routing Protocol (OTRP). This protocol combines the idea of hop-by-hop routing (as used by AODV) with an efficient route discovery algorithm called Tree-based Optimised Flooding (TOF) to improve scalability of ad hoc networks when there is no prior knowledge about the destination. To achieve this in OTRP, route discovery overheads are minimised by selectively flooding the network through a limited set of nodes, referred to as branching nodes. The key factors governing the performance of OTRP are theoretically analysed and evaluated, including the number of branch nodes, location of branching nodes and number of Route REQuest (RREQ) retries. It was found that the performance of OTRP (evaluated using a variety of well-known metrics) improves as the number of branching nodes increases and the number of consumed RREQ retries is reduced. Additionally, theoretical analysis and simulation results shows that OTRP outperforms AODV, DYMO, and OLSR with reduced overheads as the number of nodes and traffic load increases. © 2012 Elsevier B.V. All rights reserved.

Alavi, AH, Gandomi, AH, Nejad, HC, Mollahasani, A & Rashed, A 2013, 'Design equations for prediction of pressuremeter soil deformation moduli utilizing expression programming systems', Neural Computing and Applications, vol. 23, no. 6, pp. 1771-1786.
View/Download from: Publisher's site

Al‐Hajjar, M, Fisher, J, Williams, S, Tipper, JL & Jennings, LM 2013, 'Effect of femoral head size on the wear of metal on metal bearings in total hip replacements under adverse edge‐loading conditions', Journal of Biomedical Materials Research Part B: Applied Biomaterials, vol. 101B, no. 2, pp. 213-222.
View/Download from: Publisher's site
View description>>

AbstractMetal‐on‐metal (MoM) bearings have shown low‐wear rates under standard hip simulator conditions; however, retrieval studies have shown large variations in wear rates and mechanisms. High‐wear in vivo has caused catastrophic complications and has been associated with steep cup‐inclination angle (rotational malpositioning). However, increasing the cup‐inclination angle in vitro has not replicated the increases in wear to the same extent as those observed in retrievals. Clinically relevant wear rates, patterns, and particles were observed in vitro for ceramic‐on‐ceramic bearings when microseparation (translational malpositioning) conditions were introduced into the gait cycle. In the present study, 28 and 36‐mm MoM bearings were investigated under adverse conditions. Increasing the cup angle from 45° to 65° resulted in a significant increase in the wear rate of the 28 mm bearings. However, for the 36 mm bearings, head‐rim contact did not occur under the steep cup‐angle condition, and the wear rate did not increase. The introduction of microseparation to the gait cycle significantly increased the wear rate of the MoM bearings. Cup angle and head size did not influence the wear rate under microseparation conditions. This study indicated that high‐in vivo wear rates were associated with edge loading due to rotational malpositioning such as high‐cup‐inclination angle and translational malpositioning that could occur due to several surgical factors. Translational malpositioning had a more dominant effect on the wear rate. Preclinical simulation testing should be undertaken with translational and rotational malpositioning conditions as well as standard walking cycle conditions defined by the ISO standard. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2013.

Aljarajreh, H, Reaz, MBI, Amin, MS & Husain, H 2013, 'An Active Inductor Based Low Noise Amplifier for RF Receiver', Electronics and Electrical Engineering, vol. 19, no. 5, pp. 49-52.
View/Download from: Publisher's site

AlKilani, SG, Jupp, JR & Sawhncy, A 2013, 'Readying a developing economy for national performance measurement and benchmarking: A case study of the Jordanian construction industry', International Journal for Housing Science and Its Applications, vol. 37, no. 1, pp. 11-21.
View description>>

In many developing countries, national construction performance measures and benchmarking processes are yet to be formulated, implemented and tracked. This inherent weakness of an economic sector has negative impacts on, productivity, efficiency and performance. This paper takes the Jordanian construction industry as a case study of a developing economy and highlights the significant challenges it faces in implementing performance measurement. Findings from this study reveal a number of specific and general characteristics, and the extent and seventy of industry-based barriers. The paper identifies a range of requirements at the national level that must be met to move from a state of relative disarray to an industry ready for the successful implementation of performance measurement and benchmarking. The authors anticipate that the findings of this paper will be of interest to academics and professionals involved in other developing countries' construction industries. Copyright©2013 IAHS.

Alkilani, SZ, Jupp, J & Sawhney, A 2013, 'Issues of construction health and safety in developing countries: a case of Jordan', Construction Economics and Building, vol. 13, no. 3, pp. 141-156.
View/Download from: Publisher's site
View description>>

The construction industry is widely regarded as one of the most significant interms of its impact on health and safety (H&S). Recent findings suggestthat in developing countries H&S awareness and performance is low. In this paper,the current state of H&S on construction sites in Jordan was explored usinga two-part investigation. The first part introduces the area of research in aliterature based study of on-site safety. The second part is a case study onthe Jordanian construction industry and its current H&S practices. Primary datawas collected from field visits, expert interviews and semi-structuredquestionnaires. Supporting secondary data was collected from archival studiesand related research literature. The research findings highlight a lack of governmentcommitment exemplified by regulations, policies and legal constraints thatlimit the operational efficiency of those government departments responsiblefor H&S management, and hindering the development of good H&S practice.Research results also highlight the key constraints of good H&S practice fromthe perspective of construction contractors.The study concludes with discussion ofpotential solutions toimprove H&S performance on construction sites in Jordan.

Al-Kouri, O, Al-Fugara, A, Al-Rawashdeh, S, Sadoun, B, Sadoun, B & Pradhan, B 2013, 'Geospatial Modeling for Sinkholes Hazard Map Based on GIS & RS Data', Journal of Geographic Information System, vol. 05, no. 06, pp. 584-592.
View/Download from: Publisher's site

Al-Kouri, O, Al-Rawashdeh, S, Sadoun, B, Sadoun, B & Pradhan, B 2013, 'Geospatial modeling for sinkholes hazard map based on GIS & RS data', Journal of Geographic Information System, vol. 5, no. 06, p. 584.

Al-Mahmoud, F, Castel, A & François, R 2013, 'Modelling of flexural behaviour of RC beams strengthened with NSM CFRP rods including serviceability', European Journal of Environmental and Civil Engineering, vol. 17, no. 7, pp. 532-553.
View/Download from: Publisher's site

Al-shalabi, M, Billa, L, Pradhan, B, Mansor, S & Al-Sharif, AAA 2013, 'Modelling urban growth evolution and land-use changes using GIS based cellular automata and SLEUTH models: the case of Sana’a metropolitan city, Yemen', Environmental Earth Sciences, vol. 70, no. 1, pp. 425-437.
View/Download from: Publisher's site

Al-shalabi, M, Pradhan, B, Billa, L, Mansor, S & Althuwaynee, OF 2013, 'Manifestation of Remote Sensing Data in Modeling Urban Sprawl Using the SLEUTH Model and Brute Force Calibration: A Case Study of Sana’a City, Yemen', Journal of the Indian Society of Remote Sensing, vol. 41, no. 2, pp. 405-416.
View/Download from: Publisher's site

Al-sharif, AAA, Pradhan, B, Shafri, HZM & Mansor, S 2013, 'Spatio-temporal analysis of urban and population growths in tripoli using remotely sensed data and GIS', Indian Journal of Science and Technology, vol. 6, no. 8, pp. 5134-5142.
View description>>

The remote sensing data and GIS have been used widely to analyse and study the patterns of urban expansions. The capital of Libya, Tripoli was selected to perform this study and to examine its urban growth. Four satellite imageries and population censuses of the study area for the time period 1984 to 2010 were used in this work. The objectives of this paper are identifying and analysing the urban sprawl of Tripoli as a pattern and as process. Also to understand and assess the interchangeable relationship of urban growth and population growth of study area. Urban area extents in different time periods were extracted by supervised classification method of the satellite imageries. Then, the population data and urban extents data were coupled to perform the analysis. Additionally, Shannon's entropy technique was used for further assessment of urban growth. The study findings demonstrate that Tripoli had sprawled urban growth during the period 1984 to 2010. Moreover, during the above mentioned period, the urban expansion dispersion rate has shown in an ascending mode. Consequently, this uncontrolled dispersed urban development had resulted in high consumption land rate per capita despite of decrement in population growth rate.

Altaee, A 2013, 'Theoretical study on feed water designs to reverse osmosis pressure vessel', Desalination, vol. 326, pp. 1-9.
View/Download from: Publisher's site
View description>>

Scale fouling and power consumption are one of the most important parameters in reverse osmosis (RO) desalination. To reduce scale problems in RO, single or central feeds to the pressure vessel were suggested instead of using end feed. In this paper Reverse Osmosis System Analysis (ROSA) software was used to simulate the differences between single, central and end feed designs. The effect of feed Silt Density Index (SDI) and number of the RO elements in the pressure vessel were investigated here. Feed SDIs 5, 3, and 1 were considered in this paper. To study the effect of the numbers of RO elements, 6 RO and 8 RO elements per pressure vessel were simulated. The simulation results showed that the power consumption in the end feed design was lower than in the single and central feed designs. The simulation results showed that Langelier Silt Index (LSI) and Stiff & Davis Stability Index (SDSI) were lower in the single than central feed design which in turn was lower than in the end feed design. These results indicated that although the power consumption in the single and central feed designs was higher than in the end feed design; the former designs were more efficient in rescuing the RO scale problems. © 2013 Elsevier B.V.

Altaee, A, Mabrouk, A & Bourouni, K 2013, 'A novel Forward osmosis membrane pretreatment of seawater for thermal desalination processes', Desalination, vol. 326, pp. 19-29.
View/Download from: Publisher's site

Altaee, A, Mabrouk, A & Bourouni, K 2013, 'Corrigendum to “A novel forward osmosis membrane pretreatment of seawater for thermal desalination processes” [Desalination 326 (2013) 19–29]', Desalination, vol. 329, pp. 115-115.
View/Download from: Publisher's site

Alturki, AA, McDonald, JA, Khan, SJ, Price, WE, Nghiem, LD & Elimelech, M 2013, 'Removal of trace organic contaminants by the forward osmosis process', Separation and Purification Technology, vol. 103, pp. 258-266.
View/Download from: Publisher's site

Al-Zubaydi, AY 2013, 'Building Models Design And Energy Simulation With Google Sketchup And Openstudio', Journal of Advanced Science and Engineering Research, vol. 3, no. 4.
View description>>

The necessity to approach the zero net building design and the improving of building thermal performance augmented the need to use the energy simulation programmes in order to estimate the building energy consumption and virtually modify the structure and the construction material. Energy Plus software from the US Department of Energy introduced a plug-in for Google SketchUp drawing software known as Open Studio, this tool can be considered as a free licences powerful simulation tool available for all engineers to estimate and modify the buildings energy consumption. In this paper we presented a step by step simulation procedure to explain the software capability and encourage the use of the tool by engineers interested in energy efficiency calculations

Amailef, K & Lu, J 2013, 'Ontology-supported case-based reasoning approach for intelligent m-Government emergency response services', DECISION SUPPORT SYSTEMS, vol. 55, no. 1, pp. 79-97.
View/Download from: Publisher's site
View description>>

There is a critical need to develop a mobile-based emergency response system (MERS) to help reduce risks in emergency situations. Existing systems only provide short message service (SMS) notifications, and the decision support is weak, especially in man-made disaster situations. This paper presents a MERS ontology-supported case-based reasoning (OS-CBR) method, with implementation, to support emergency decision makers to effectively respond to emergencies. The advantages of the OS-CBR approach is that it builds a case retrieving process, which provides a more convenient system for decision support based on knowledge from, and solutions provided for past disaster events. The OS-CBR approach includes a set of algorithms that have been successfully implemented in four components: data acquisition; ontology; knowledge base; and reasoning; as a sub-system of the MERS framework. A set of experiments and case studies validated the OS-CBR approach and application, and demonstrate its efficiency. Copyright © 2013 Published by Elsevier B.V. All rights reserved.

Amarjargal, A, Jiang, Z, Tijing, LD, Park, C-H, Im, I-T & Kim, CS 2013, 'Nanosheet-based α-Fe2O3 hierarchical structure decorated with TiO2 nanospheres via a simple one-pot route: Magnetically recyclable photocatalysts', Journal of Alloys and Compounds, vol. 580, pp. 143-147.
View/Download from: Publisher's site

Amarjargal, A, Tijing, LD, Im, I-T & Kim, CS 2013, 'Simultaneous preparation of Ag/Fe3O4 core–shell nanocomposites with enhanced magnetic moment and strong antibacterial and catalytic properties', Chemical Engineering Journal, vol. 226, pp. 243-254.
View/Download from: Publisher's site
View description>>

In this study, core–shell Ag/Fe3O4 nanocomposites have been successfully prepared by modified co-precipitation route followed by facile hydrothermal treatment in one-pot synthesis under various (Ag(NH3)2+) ion concentrations without adding any reducing agents. A single crystal Ag core and polycrystallized Fe3O4 shell nanostructures could be obtained when high amount of AgNO3 precursor are used in the presence of Fe2+ ions source, i.e., ferrous salt alone. A mechanism leading to the formation of such morphologies was proposed and samples were characterized with several analytical techniques including field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared (FT-IR) spectroscopy. Significant increase of saturation magnetic moment was observed for the Ag/Fe3O4 nanocomposite. The results showed enhanced magnetic moment and strong catalytic and antibacterial activities of the present Ag/Fe3O4 nanocomposite, demonstrating its importance for potential application in water treatment and biomedical application, with the ability of subsequent removal by means of an external magnetic field.

Amarjargal, A, Tijing, LD, Park, C-H, Im, I-T & Kim, CS 2013, 'Controlled assembly of superparamagnetic iron oxide nanoparticles on electrospun PU nanofibrous membrane: A novel heat-generating substrate for magnetic hyperthermia application', European Polymer Journal, vol. 49, no. 12, pp. 3796-3805.
View/Download from: Publisher's site
View description>>

A facile method of fabricating novel heat-generating membranes composed of electrospun polyurethane (PU) nanofibers decorated with superparamagnetic iron oxide nanoparticles (NPs) is reported. Electrospinning was used to produce polymeric nanofibrous matrix, whereas polyol immersion technique allowed in situ assembly of well-dispersed Fe3O4 NPs on the nanofibrous membranes without any surfactant, and without sensitizing and stabilizing reagent. The assembly phenomena can be explained by the hydrogen-bonding interactions between the amide groups in the PU matrix and the hydroxyl groups capped on the surface of the Fe3O4 NPs. The prepared nanocomposite fibers showed acceptable magnetization value of 33.12 emu/g, after measuring the magnetic hysteresis loops using SQUID. Moreover, the inductive heating property of electrospun magnetic nanofibrous membranes under an alternating current (AC) magnetic field was investigated. We observed a progressive increase in the heating rate with the increase in the amount of magnetic Fe3O4 NPs in/on the membranes. The present electrospun magnetic nanofibrous membrane may be a potential candidate as a novel heat-generating substrate for localized hyperthermia cancer therapy. © 2013 Elsevier Ltd. All rights reserved.

Amarjargal, A, Tijing, LD, Ruelo, MTG, Park, C-H, Pant, HR, Vista IV, FP, Lee, DH & Kim, CS 2013, 'Inactivation of bacteria in batch suspension by fluidized ceramic tourmaline nanoparticles under oscillating radio frequency electric fields', Ceramics International, vol. 39, no. 2, pp. 2141-2145.
View/Download from: Publisher's site
View description>>

Here, we investigated the synergistic effect of fluidized ceramic tourmaline nanoparticles (NPs) with oscillating electric fields to the inactivation of Escherichia coli in batch suspension. Different amounts of tourmaline NPs (5–100 mg) were dispersed in bacterial suspension (50 ml) and oscillating radio frequency (RF) electric field was applied at 3 V (equivalent of 1.5 V/cm electric field strength) and at varying frequencies (100 kHz and 1 MHz). The results showed high inactivation efficiency when combining fluidized tourmaline NPs and oscillating electric fields as compared to individual treatments of electric fields or tourmaline NPs only. The results showed 2.5–5-log reduction of viable E. coli concentration depending on the tourmaline concentration, electric field frequency and solution temperature. The present method shows a lot of promise as a novel and low-cost bacterial inactivation technique for water treatment applications.

Aminian, P, Niroomand, H, Gandomi, AH, Alavi, AH & Arab Esmaeili, M 2013, 'New design equations for assessment of load carrying capacity of castellated steel beams: a machine learning approach', Neural Computing and Applications, vol. 23, no. 1, pp. 119-131.
View/Download from: Publisher's site

Anaissi, A, Kennedy, PJ, Goyal, M & Catchpoole, DR 2013, 'A balanced iterative random forest for gene selection from microarray data', BMC BIOINFORMATICS, vol. 14, no. 1, pp. 1-10.
View/Download from: Publisher's site
View description>>

Background: The wealth of gene expression values being generated by high throughput microarray technologies leads to complex high dimensional datasets. Moreover, many cohorts have the problem of imbalanced classes where the number of patients belonging to each class is not the same. With this kind of dataset, biologists need to identify a small number of informative genes that can be used as biomarkers for a disease.Results: This paper introduces a Balanced Iterative Random Forest (BIRF) algorithm to select the most relevant genes for a disease from imbalanced high-throughput gene expression microarray data. Balanced iterative random forest is applied on four cancer microarray datasets: a childhood leukaemia dataset, which represents the main target of this paper, collected from The Children's Hospital at Westmead, NCI 60, a Colon dataset and a Lung cancer dataset. The results obtained by BIRF are compared to those of Support Vector Machine-Recursive Feature Elimination (SVM-RFE), Multi-class SVM-RFE (MSVM-RFE), Random Forest (RF) and Naive Bayes (NB) classifiers. The results of the BIRF approach outperform these state-of-the-art methods, especially in the case of imbalanced datasets. Experiments on the childhood leukaemia dataset show that a 7% ∼ 12% better accuracy is achieved by BIRF over MSVM-RFE with the ability to predict patients in the minor class. The informative biomarkers selected by the BIRF algorithm were validated by repeating training experiments three times to see whether they are globally informative, or just selected by chance. The results show that 64% of the top genes consistently appear in the three lists, and the top 20 genes remain near the top in the other three lists.Conclusion: The designed BIRF algorithm is an appropriate choice to select genes from imbalanced high-throughput gene expression microarray data. BIRF outperforms the state-of-the-art methods, especially the ability to handle the class-imbalanced data. Moreover, the...

Anand, S, Nylk, J, Neale, SL, Dodds, C, Grant, S, Ismail, MH, Reboud, J, Cooper, JM & McGloin, D 2013, 'Aerosol droplet optical trap loading using surface acoustic wave nebulization', OPTICS EXPRESS, vol. 21, no. 25, pp. 30148-30155.
View/Download from: Publisher's site

Anisur, MR, Mahfuz, MH, Kibria, MA, Saidur, R, Metselaar, IHSC & Mahlia, TMI 2013, 'Curbing global warming with phase change materials for energy storage', Renewable and Sustainable Energy Reviews, vol. 18, pp. 23-30.
View/Download from: Publisher's site

Aoki, Y, Valipour, H, Samali, B & Saleh, A 2013, 'A Study on Potential Progressive Collapse Responses of Cable-Stayed Bridges', Advances in Structural Engineering, vol. 16, no. 4, pp. 689-706.
View/Download from: Publisher's site
View description>>

In this paper, a finite element (FE) model for a cable-stayed bridge designed according to Australian standards is developed and analysed statically and dynamically with and without geometrical nonlinearities. The dynamic amplification factor ( DAF) and demand-to-capacity ratio ( DCR) in different structural components including cables, towers and the deck are calculated and it is shown that DCR usually remains below one (no material nonlinearity occurs) in the scenarios studied for the bridge under investigation, however, DAF can take values larger than two. Moreover, effects of location, duration and number of cable(s) loss as well as effect of damping level on the progressive collapse resistance of the bridge are studied and importance of each factor on the potential progressive collapse response of the bridgeis investigated.

Apeh, E & Gabrys, B 2013, 'Detecting and Visualizing the Change in Classification of Customer Profiles based on Transactional Data', Evolving Systems, vol. 4, no. 1, pp. 27-42.
View/Download from: Publisher's site
View description>>

Customer transactions tend to change over time with changing customer behaviour patterns. Classifier models, however, are often designed to perform prediction on data which is assumed to be static. These classifier models thus deteriorate in performance over time when predicting in the context of evolving data. Robust adaptive classification models are therefore needed to detect and adjust to the kind of changes that are common in transactional data. This paper presents an investigation into using change mining to monitor the adaptive classification of customers based on their transactions through moving time windows. The classification performance of two-class decision tree ensembles built using the data binning process based on the number of items purchased was monitored over varying 3, 6, 9 and 12 months time windows. The changing class values of the customer profiles were analysed and described. Results from our experiments show that the proposed approach can be used for learning and adapting to changing customer profiles. © 2012 Springer-Verlag.

Arbab, MI, Masjuki, HH, Varman, M, Kalam, MA, Imtenan, S & Sajjad, H 2013, 'Fuel properties, engine performance and emission characteristic of common biodiesels as a renewable and sustainable source of fuel', Renewable and Sustainable Energy Reviews, vol. 22, pp. 133-147.
View/Download from: Publisher's site

Ardalany, M, Fragiacomo, M, Deam, B & Crews, K 2013, 'Analytical cracking load estimation of Laminated Veneer Lumber (LVL) beams with holes', European Journal of Wood and Wood Products, vol. 71, no. 1, pp. 37-48.
View/Download from: Publisher's site
View description>>

Predicting the load-carrying capacity of timber beams with holes cannot be performed by usual analysis methods if the failure of the beam is governed by the crack initiation and propagation around the hole at low load levels. Predicting the cracking load is an important design issue because it corresponds to the load-carrying capacity of the timber beam before the crack propagation. One of the models that can be used for the fracture formulation is that of a beam on elastic foundation. In this model a part of the beam is assumed to follow the conditions of beam with elastic foundation which has spring stiffness equal to the fracture properties of the material in the crack surface. Based on beam on elastic foundation model, the cracking load prediction is the target of the paper. Some closed form solutions for the beam with hole are presented. The formulation has been derived for two cases of pure shear and pure bending moment. Finally a semi-empirical formulation for combination of shear and bending moment in the section is presented. The model predictions are compared with the results of an experimental program showing good correlation. The analytical model can therefore be proposed for future revisions of codes of practice such as the Eurocode 5

Ariffin, SA & Dyson, LE 2013, 'mLearning in Malaysian Universities: Local Ethical Considerations for Mobile Phone Use', Transactions on Mobile Learning, vol. 2, no. 1, pp. 15-19.
View description>>

Ethical policies are significant in regulating the use of mobile phones for mLearning. However, in developing countries, such as Malaysia, this area is fairly new. This article discusses research conducted within the Malaysian university system to gain perspectives from academics and students about the use of mobile phones for learning. The research methods used were interviews and focus groups. The findings were grouped according to several themes: concerns about the use of mobile phones inside the classroom; regulation and self-regulation of mobile phone use; banning of mobile phones from the classroom; allowing their use in emergency and special situations; uncertainty about ethical policies for using mobile phones; and worries about students potential disconnection from social life. Various approaches to regulate mobile phone use were discovered and are discussed in this article.

Arodudu, O, Voinov, A & van Duren, I 2013, 'Assessing bioenergy potential in rural areas – A NEG-EROEI approach', Biomass and Bioenergy, vol. 58, pp. 350-364.
View/Download from: Publisher's site

Arsene, CTC & Gabrys, B 2013, 'Probabilistic finite element predictions of the human lower limb model in total knee replacement', Medical Engineering & Physics, vol. 35, no. 8, pp. 1116-1132.
View/Download from: Publisher's site

Aryal, R, Beecham, S, Vigneswaran, S, Kandasamy, J & Naidu, R 2013, 'Spatial variation of polycyclic aromatic hydrocarbons and equivalent toxicity in Sydney Harbour, Australia', Journal of Water and Climate Change, vol. 4, no. 4, pp. 364-372.
View/Download from: Publisher's site
View description>>

Harbour sediments include wash-off from different nearby catchments that have various landuse activities. In this study the spatial variation of polycyclic aromatic hydrocarbons (PAHs) in Sydney Harbour was studied by analysing the sediment. The sediment was collected from 12 locations and 16 PAHs that are prioritized by the United States Environmental Protection Authority were analysed. The concentrations in the sediment were in the range of 54–23,440 ng/g of total PAHs and this varied from location to location. The result suggests that the harbour is contaminated with PAHs from low concentration to very high concentration. Among the total PAHs, approximately 75% were medium to higher molecular weight 4- and 5-ring member PAHs. A toxicity identification evaluation (TEQ) approach using a toxicity equivalency factor (TEF) was applied to assess the sediment toxicity. The TEF was found to be between 22 and 8,277 ng TEQ/g. The TEQ value indicated potential adverse ecological and human health effects in many locations.

Asgekar, A, Oonk, JBR, Yatawatta, S, Weeren, RJV, McKean, JP, White, G, Jackson, N, Anderson, J, Avruch, IM, Batejat, F, Beck, R, Bell, ME, Bell, MR, Bemmel, IV, Bentum, MJ, Bernardi, G, Best, P, Birzan, L, Bonafede, A, Braun, R, Breitling, F, Brink, RHVD, Broderick, J, Brouw, WN, Bruggen, M, Butcher, HR, Cappellen, WV, Ciardi, B, Conway, JE, Gasperin, FD, Geus, ED, Jong, AD, Vos, MD, Duscha, S, Eisloffel, J, Falcke, H, Fallows, RA, Ferrari, C, Frieswijk, W, Garrett, MA, Griesmeier, J-M, Grit, T, Gunst, AW, Hassall, TE, Heald, G, Hessels, JWT, Hoeft, M, Iacobelli, M, Intema, H, Juette, E, Karastergiou, A, Kohler, J, Kondratiev, VI, Kuniyoshi, M, Kuper, G, Law, C, Leeuwen, JV, Maat, P, Macario, G, Mann, G, Markoff, S, McKay-Bukowski, D, Mevius, M, Miller-Jones, JCA, Mol, JD, Morganti, R, Mulcahy, DD, Munk, H, Norden, MJ, Orru, E, Paas, H, Pandey-Pommier, M, Pandey, VN, Pizzo, R, Polatidis, AG, Reich, W, Rottgering, H, Scheers, B, Schoenmakers, A, Sluman, J, Smirnov, O, Sobey, C, Steinmetz, M, Tagger, M, Tang, Y, Tasse, C, Vermeulen, R, Vocks, C, Wijers, RAMJ, Wise, MW, Wucknitz, O & Zarka, P 2013, 'LOFAR detections of low-frequency radio recombination lines towards Cassiopeia A', Astronomy and Astrophysics, vol. 551.
View/Download from: Publisher's site
View description>>

Cassiopeia A was observed using the Low-Band Antennas of the LOw FrequencyARray (LOFAR) with high spectral resolution. This allowed a search for radiorecombination lines (RRLs) along the line-of-sight to this source. Fivecarbon-alpha RRLs were detected in absorption between 40 and 50 MHz with asignal-to-noise ratio of > 5 from two independent LOFAR datasets. The derivedline velocities (v_LSR ~ -50 km/s) and integrated optical depths (~ 13 s^-1) ofthe RRLs in our spectra, extracted over the whole supernova remnant, areconsistent within each LOFAR dataset and with those previously reported. Forthe first time, we are able to extract spectra against the brightest hotspot ofthe remnant at frequencies below 330 MHz. These spectra show significantlyhigher (15-80 %) integrated optical depths, indicating that there issmall-scale angular structure on the order of ~1 pc in the absorbing gasdistribution over the face of the remnant. We also place an upper limit of 3 x10^-4 on the peak optical depths of hydrogen and helium RRLs. These resultsdemonstrate that LOFAR has the desired spectral stability and sensitivity tostudy faint recombination lines in the decameter band.

Ashraf, J, Hussain, OK & Hussain, FK 2013, 'A Framework for Measuring Ontology Usage on the Web', COMPUTER JOURNAL, vol. 56, no. 9, pp. 1083-1101.
View/Download from: Publisher's site
View description>>

A decade-long conscious effort by the Semantic Web community has resulted in the formation of a decentralized knowledge platform which enables data interoperability at a syntactic and semantic level. For information interoperability, at a syntactic level, RDF provides the standard format for publishing data and RDFS gives structure to the information. For semantic-level interoperability, ontologies are used which allow information dissemination and assimilation among diverse applications and systems; where information is equally accessible and useful to humans and machines. The success of the linked open data project, recognition of explicit semantics (annotated through web ontologies) by search engines and the realized potential advantages of semantic data for publishers have resulted in tremendous growth in the use of web ontologies on the web. In order to promote the adoption of ontologies (to new users), reusability of adopted ontologies, effective and efficient utilization on ontological knowledge and evolving the ontological model, erudite insight on the usage of ontologies is imperative. While ontology evaluation attempts to evaluate a developed ontology to assess its fitness and quality, it does not provide any insight into how ontologies are being used and what is the state of prevalent knowledge patterns. Realizing the importance of measuring and analysing ontology usage to advance the adoption, reusability and exploitation of ontologies, we present a semantic framework for measuring and analysing ontology usage on the Web on empirical grounding. Our methodological approach is discussed to highlight the detail and role of each step. A framework is presented along with the set of metrics developed to measure ontology usage from different aspects such as ontology richness, usage and incentives to provide a holistic view on the state of ontology usage. The framework is then evaluated using an important use-case scenario to identify the prevalent knowledge ...

Aslani, F & Natoori, M 2013, 'Stress-strain relationships for steel fiber reinforced self-compacting concrete', STRUCTURAL ENGINEERING AND MECHANICS, vol. 46, no. 2, pp. 295-322.
View/Download from: Publisher's site
View description>>

Steel fiber reinforced self-compacting concrete (SFRSCC) is a relatively new composite material which congregates the benefits of self-compacting concrete (SCC) technology with the profits derived from the fiber addition to a brittle cementitious matrix.

Aslani, F & Nejadi, S 2013, 'Creep and Shrinkage of Self-Compacting Concrete with and without Fibers', JOURNAL OF ADVANCED CONCRETE TECHNOLOGY, vol. 11, no. 10, pp. 251-265.
View/Download from: Publisher's site
View description>>

Fiber-reinforced self-compacting concrete (FRSCC) is a high-performance building material that combines positive aspects of fresh properties of self-compacting concrete (SCC) with improved characteristics of hardened concrete as a result of fiber addition. Considering these properties, the application ranges of both FRSCC and SCC can be covered. To produce SCC, either the constituent materials or the corresponding mix proportions may notably differ from the conventional concrete (CC). These modifications besides enhance the concrete fresh properties affect the hardened properties of the concrete including creep and shrinkage. Therefore, it is vital to investigate whether all the assumed hypotheses about conventional concrete are also valid for SCC structures. In the present paper, a numerical and experimental study about creep and shrinkage behavior of FRSCC and SCC is performed. Two new creep and shrinkage prediction models based on the comprehensive analysis on the available models of both CC and SCC are proposed for FRSCC and SCC structures. In order to evaluate the predictability of the proposed models, an experimental program was carried out. For this purpose, four SCC mixes - plain SCC, steel, polypropylene, and hybrid FRSCC - are considered in the test program. Several specimens were loaded and deformation in non-loaded specimens was also measured to assess shrinkage. All specimens were kept under constant stress during at least 364 days in a climatic chamber with temperature and relative humidity of 22°C and 50%, respectively. Results showed that the new models were able to predict deformations with good accuracy, although providing deformations slight overestimated. Copyright © 2013 Japan Concrete Institute.

Aslani, F & Nejadi, S 2013, 'Mechanical characteristics of self-compacting concrete with and without fibres', MAGAZINE OF CONCRETE RESEARCH, vol. 65, no. 10, pp. 608-622.
View/Download from: Publisher's site
View description>>

Fibre-reinforced self-compacting concrete (FRSCC) is a high-performance building material that combines positive aspects of fresh properties of self-compacting concrete (SCC) with improved characteristics of hardened concrete as a result of fibre addition. Considering these properties, the application ranges of both FRSCC and SCC can be covered. A test program is carried out to develop information about the mechanical properties of FRSCC. For this purpose, four SCC mixes - plain SCC, steel, polypropylene and hybrid FRSCC - Are considered in the test program. The properties include compressive and splitting tensile strengths, modulus of elasticity, modulus of rupture, and compressive stress-strain curve. These properties are tested at 3, 7, 14, 28, 56 and 91 days. Relationships are established to predict the compressive and splitting tensile strengths, modulus of elasticity, modulus of rupture, and compressive stress-strain curve. The models provide predictions matching the measurements.

Aslani, F & Nejadi, S 2013, 'Self-compacting concrete incorporating steel and polypropylene fibers: Compressive and tensile strengths, moduli of elasticity and rupture, compressive stress-strain curve, and energy dissipated under compression', COMPOSITES PART B-ENGINEERING, vol. 53, no. 1, pp. 121-133.
View/Download from: Publisher's site
View description>>

Fiber-reinforced self-compacting concrete (FRSCC) is a high-performance building material that combines positive aspects of fresh properties of self-compacting concrete (SCC) with improved characteristics of hardened concrete as a result of fiber addition. Considering these properties, the application ranges of both FRSCC and SCC can be covered. A test program is carried out to develop information about the mechanical properties of FRSCC. For this purpose, four SCC mixes - plain SCC, steel, polypropylene, and hybrid FRSCC - are considered in the test program. The properties include compressive and splitting tensile strengths, moduli of elasticity and rupture, compressive stress-strain curve, and energy dissipated under compression. These properties are tested at 3, 7, 14, 28, 56, and 91 days. Relationships are established to predict the compressive and splitting tensile strengths, moduli of elasticity and rupture, compressive stress-strain curve, and energy dissipated under compression. The models provide predictions matching the measurements. © 2013 Elsevier Ltd. All rights reserved.

Asrul, M, Zulkifli, NWM, Masjuki, HH & Kalam, MA 2013, 'Tribological Properties and Lubricant Mechanism of Nanoparticle in Engine Oil', Procedia Engineering, vol. 68, pp. 320-325.
View/Download from: Publisher's site

Atabani, AE, Badruddin, IA, Mahlia, TMI, Masjuki, HH, Mofijur, M, Lee, KT & Chong, WT 2013, 'Fuel Properties of Croton megalocarpus, Calophyllum inophyllum, and Cocos nucifera (coconut) Methyl Esters and their Performance in a Multicylinder Diesel Engine', Energy Technology, vol. 1, no. 11, pp. 685-694.
View/Download from: Publisher's site
View description>>

AbstractBiodiesel has been considered recently as a viable alternative to fossil diesel fuels. This study aims to evaluate the potential of biodiesel production from Croton megalocarpus oil and compared it with coconut (Cocos nucifera) and Calophyllum inophyllum methyl esters. The study presents the physical and chemical properties of Croton megalocarpus, Calophyllum inophyllum and coconut methyl esters (CMME, CIME, and COME) together with their 10 and 20 % blends by volume (B10 and B20). This is followed by evaluating their blends in a multicylinder Mitsubishi Pajero diesel engine. It has been found that the properties of all biodiesel and their blends are comparable with ASTM D6751 and ASTM D7467 standards, respectively. Over the entire range of speed, it was found that the B10 and B20 blends of CMME, CIME, and COME result in average reduction in torque and brake power (BP) along with increased brake‐specific fuel consumption (BSFC) compared to pure diesel fuel. With respect to engine emissions, the fuel blends resulted in an average reduction in carbon monoxide (CO) and hydrocarbon (HC) emissions. However, the CMME and COME blends resulted in increased emissions of nitrogen oxides (NO) whereas CIME emits lower NO compared to pure diesel. It is concluded that B10 and B20 biodiesel blends can be used as diesel fuel substitutes without additional modifications.

Atabani, AE, Mahlia, TMI, Anjum Badruddin, I, Masjuki, HH, Chong, WT & Lee, KT 2013, 'Investigation of physical and chemical properties of potential edible and non-edible feedstocks for biodiesel production, a comparative analysis', Renewable and Sustainable Energy Reviews, vol. 21, pp. 749-755.
View/Download from: Publisher's site

Atabani, AE, Mahlia, TMI, Masjuki, HH, Badruddin, IA, Yussof, HW, Chong, WT & Lee, KT 2013, 'A comparative evaluation of physical and chemical properties of biodiesel synthesized from edible and non-edible oils and study on the effect of biodiesel blending', Energy, vol. 58, pp. 296-304.
View/Download from: Publisher's site

Atabani, AE, Silitonga, AS, Ong, HC, Mahlia, TMI, Masjuki, HH, Badruddin, IA & Fayaz, H 2013, 'Non-edible vegetable oils: A critical evaluation of oil extraction, fatty acid compositions, biodiesel production, characteristics, engine performance and emissions production', Renewable and Sustainable Energy Reviews, vol. 18, pp. 211-245.
View/Download from: Publisher's site

Athab, HS & Lu, DD 2013, 'Quasi‐active power factor correction on flyback‐based dc/dc converter', International Journal of Circuit Theory and Applications, vol. 41, no. 5, pp. 483-497.
View/Download from: Publisher's site
View description>>

This paper presents a novel input current shaper based on a quasi‐active power factor correction (PFC) scheme. In this method, high power factor and low harmonic content are achieved by providing an auxiliary PFC circuit with a driving voltage which is derived from a third winding of the transformer of a cascaded dc/dc flyback converter. It eliminates the use of active switch and control circuit for PFC. The auxiliary winding provides a controlled voltage‐boost function for bulk capacitor without inducing a dead angle in the line current. Since the dc/dc converter operates at high switching frequency, the driving voltage is also of high switching frequency, which results in reducing the size of the magnetic components. Operating principles, analysis and experimental results of the proposed method are presented. Copyright © 2011 John Wiley & Sons, Ltd.

Awad, R, Chambers, J & Jupp, JR 2013, 'Volunteer Tourism and Architecture Students: What motivates and can best prepare them?', Journal of Pedagogic Development, vol. 3, no. 1, pp. 6-12.
View description>>

This paper explores student attitudes toward volunteering in the context of university-led building development programs, raising questions about the practice of volunteering and its contribution to community development. Focusing on students undertaking tertiary education in Western countries, this literature based study firstly explores the perceptions and motivations behind volunteering, and secondly discusses its developmental impact on low-income communities.

Azadeh, A, Jiryaei Sharahi, Z, Ashjari, B & Saberi, M 2013, 'A flexible intelligent algorithm for identification of optimum mix of demographic variables for integrated HSEE-ISO systems: The case of a gas transmission refinery', Journal of Loss Prevention in the Process Industries, vol. 26, no. 6, pp. 1159-1182.
View/Download from: Publisher's site

Azadeh, A, Rouzbahman, M, Saberi, M, Valianpour, F & Keramati, A 2013, 'Improved prediction of mental workload versus HSE and ergonomics factors by an adaptive intelligent algorithm', Safety Science, vol. 58, pp. 59-75.
View/Download from: Publisher's site

Azadeh, A, Saberi, M & Gitiforouz, A 2013, 'An integrated fuzzy mathematical model and principal component analysis algorithm for forecasting uncertain trends of electricity consumption', Quality & Quantity, vol. 47, no. 4, pp. 2163-2176.
View/Download from: Publisher's site

Azadeh, A, Saberi, M, Asadzadeh, SM & Anvarian, N 2013, 'An Adaptive-Network-Based Fuzzy Inference System-Data Envelopment Analysis Algorithm for Optimization of Long-Term Electricity Consumption, Forecasting and Policy Analysis: The Case of Seven Industrialized Countries', Energy Sources, Part B: Economics, Planning, and Policy, vol. 8, no. 1, pp. 56-66.
View/Download from: Publisher's site

Azadeh, A, Saberi, M, Asadzadeh, SM, Hussain, OK & Saberi, Z 2013, 'A neuro-fuzzy-multivariate algorithm for accurate gas consumption estimation in South America with noisy inputs', International Journal of Electrical Power & Energy Systems, vol. 46, pp. 315-325.
View/Download from: Publisher's site

Azadeh, A, Saberi, M, Kazem, A, Ebrahimipour, V, Nourmohammadzadeh, A & Saberi, Z 2013, 'A flexible algorithm for fault diagnosis in a centrifugal pump with corrupted data and noise based on ANN and support vector machine with hyper-parameters optimization', Applied Soft Computing, vol. 13, no. 3, pp. 1478-1485.
View/Download from: Publisher's site

Azadeh, A, Saberi, M, Rouzbahman, M & Saberi, Z 2013, 'An intelligent algorithm for performance evaluation of job stress and HSE factors in petrochemical plants with noise and uncertainty', Journal of Loss Prevention in the Process Industries, vol. 26, no. 1, pp. 140-152.
View/Download from: Publisher's site

Azadeh, A, Sheikhalishahi, M, Asadzadeh, SM, Saberi, M & Neghab, AEP 2013, 'Forecasting and optimization of service level in vague and complex SCM by a flexible neural network–fuzzy mathematical programming approach', The International Journal of Advanced Manufacturing Technology, vol. 68, no. 5-8, pp. 1453-1470.
View/Download from: Publisher's site

Azadeh, A, Sheikhalishahi, M, Saberi, M & Mostaghimi, MH 2013, 'An intelligent multivariate approach for optimum forecasting of daily ozone concentration in large metropolitans with incomplete inputs', International Journal of Productivity and Quality Management, vol. 12, no. 2, pp. 209-209.
View/Download from: Publisher's site
View description>>

Previous studies show that it is quite necessary to accurately analyse and forecast ozone level especially in complex and large urban regions with incomplete inputs. Also, there is a need for more precise and efficient models to determine effective warning policies with respect to ozone concentration level in large cities. This study presents a flexible and adaptive approach to overcome the above issues. Moreover, an adaptive approach based on artificial neural network (ANN), adaptive neuro-fuzzy interference system (ANFIS) and conventional regression for forecasting of daily ozone levels is developed and discussed. The preferred model is selected via mean absolute percentage of error (MAPE). The proposed model is applied to one of the most polluted and populated cities in the world. Five pollutants and four meteorological variables are considered as inputs and ozone level is considered as output. The results show the flexibility of the proposed approach. The superiority and applicability of the proposed approach over previous models are also shown and discussed in this paper.Copyright © 2013 Inderscience Enterprises Ltd.

Aziz, T, Hossain, MJ, Saha, TK & Mithulananthan, N 2013, 'VAR Planning With Tuning of STATCOM in a DG Integrated Industrial System', IEEE Transactions on Power Delivery, vol. 28, no. 2, pp. 875-885.
View/Download from: Publisher's site

Babanajad, SK, Gandomi, AH, Mohammadzadeh S., D & Alavi, AH 2013, 'Numerical modeling of concrete strength under multiaxial confinement pressures using linear genetic programming', Automation in Construction, vol. 36, pp. 136-144.
View/Download from: Publisher's site

Bagheri, M, Gandomi, AH, Bagheri, M & Shahbaznezhad, M 2013, 'Multi‐expression programming based model for prediction of formation enthalpies of nitro‐energetic materials', Expert Systems, vol. 30, no. 1, pp. 66-78.
View/Download from: Publisher's site
View description>>

AbstractThere has been considerable interest in predicting the properties of nitro‐energetic materials to improve their performance. Not to mention insightful physical knowledge, computational‐aided molecular studies can expedite the synthesis of novel energetic materials through cost reduction labours and risky experimental tests. In this paper, quantitative structure–property relationship based on multi‐expression programming employed to correlate the formation enthalpies of frequently used nitro‐energetic materials with their molecular properties. The simple yet accurate obtained model is able to correlate the formation enthalpies of nitro‐energetic materials to their molecular structure with the accuracy comparable to experimental precision.

Banasiak, L, Indraratna, B, Regmi, G, Golab, A & Lugg, G 2013, 'Characterisation and assessment of recycled concrete aggregates used in a permeable reactive barrier for the treatment of acidic groundwater', Geomechanics and Geoengineering, vol. 8, no. 3, pp. 155-166.
View/Download from: Publisher's site
View description>>

The acidification of coastal waterways because of acid sulphate soil is an environmental, economic and social problem within Australia. A pilot-scale permeable reactive barrier (PRB), using recycled concrete aggregates as reactive material, was installed in low-lying acid sulphate soil terrain for acidic groundwater remediation. Column experiments were previously undertaken with synthetic groundwater to ascertain the dominant reactions occurring within the PRB. Results showed that armouring of the reactive material surface by precipitated Al- and Fe-bearing minerals significantly reduced its acid neutralisation capacity (ANC). The purpose of this current study was to validate this decline in ANC through characterisation of the virgin and armoured concrete aggregates, and precipitates that formed on the concrete. Samples of concrete aggregates and precipitates were analysed using X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy-Energy dispersive spectroscopy (SEM-EDS) and X-ray micro-computed tomography (μCT). The conclusions drawn from these analyses are that Al-bearing (gibbsite 14.3%, boehmite 10.9%) and Fe-bearing (goethite 38.2%) mineral precipitates of diverse morphology form as a thin layer coating the aggregate surfaces. A reduction of CaO in the armoured concrete aggregates by 47% correlates with the reduction in ANC of the virgin concrete by 50% due to armouring. © 2013 Copyright Taylor and Francis Group, LLC.

Baran, TA & Oppenheim, AV 2013, 'A derivation of the recursive solution to the autocorrelation normal equations [Lecture Notes]', IEEE Signal Processing Magazine, vol. 30, no. 1, pp. 142-144.
View/Download from: Publisher's site
View description>>

This paper generalizes Bell's 'basic' second order sequences and Lucas' 'fundamental' and 'primordial' second order sequences in order to develop some properties of two classic arbitrary order generalizations of the sequences of Fibonacci and Lucas. An e

Barnet, M & Shaw, T 2013, 'What do consumers see as important in the continuity of their care?', Supportive Care in Cancer, vol. 21, no. 9, pp. 2637-2642.
View/Download from: Publisher's site

Barnhill, E, Kennedy, P, Hammer, S, van Beek, EJR, Brown, C & Roberts, N 2013, 'Statistical mapping of the effect of knee extension on thigh muscle viscoelastic properties using magnetic resonance elastography', Physiological Measurement, vol. 34, no. 12, pp. 1675-1698.
View/Download from: Publisher's site

Bastidas-Arteaga, E, Schoefs, F, Stewart, MG & Wang, X 2013, 'Influence of global warming on durability of corroding RC structures: A probabilistic approach', Engineering Structures, vol. 51, pp. 259-266.
View/Download from: Publisher's site
View description>>

Chloride ingress and carbonation cause corrosion of reinforced concrete (RC) structures affecting its operational life. Experimental evidence indicates that these deterioration processes are highly influenced by CO2 emissions and climatic conditions in the surrounding environment - i.e., temperature, humidity, etc. Since studies on global warming announce changes in climate, the impact of changing climate on RC durability should also be considered. This paper links RC deterioration mechanisms to CO2 emissions and global warming. Based on various studies on climate change, models for estimating the effect of CO2 emissions and temperature/humidity changes due to global warming are described. Furthermore, various scenarios of global warming that can be used to assess the effect of climate change in structural reliability are proposed. The proposed approach is then illustrated with a numerical example that calculates the probability of failure of a RC bridge beam for future climate scenarios. The paper then outlines some adaptation strategies, particularly focusing on the needs for risk-based selection of optimal adaptation measures. © 2013 Elsevier Ltd.

Beck, D, Thoms, JAI, Perera, D, Schütte, J, Unnikrishnan, A, Knezevic, K, Kinston, SJ, Wilson, NK, O’Brien, TA, Göttgens, B, Wong, JWH & Pimanda, JE 2013, 'Genome-wide analysis of transcriptional regulators in human HSPCs reveals a densely interconnected network of coding and noncoding genes', Blood, vol. 122, no. 14, pp. e12-e22.
View/Download from: Publisher's site
View description>>

Key Points Genome-wide binding profiles of FLI1, ERG, GATA2, RUNX1, SCL, LMO2, and LYL1 in human HSPCs reveals patterns of combinatorial TF binding. Integrative analysis of transcription factor binding reveals a densely interconnected network of coding and noncoding genes in human HSPCs.

BEHBOOD, V, LU, JIE & ZHANG, G 2013, 'FUZZY BRIDGED REFINEMENT DOMAIN ADAPTATION: LONG-TERM BANK FAILURE PREDICTION', International Journal of Computational Intelligence and Applications, vol. 12, no. 01, pp. 1350003-1350003.
View/Download from: Publisher's site
View description>>

Machine learning methods, such as neural network (NN) and support vector machine, assume that the training data and the test data are drawn from the same distribution. This assumption may not be satisfied in many real world applications, like long-term financial failure prediction, because the training and test data may each come from different time periods or domains. This paper proposes a novel algorithm known as fuzzy bridged refinement-based domain adaptation to solve the problem of long-term prediction. The algorithm utilizes the fuzzy system and similarity concepts to modify the target instances' labels which were initially predicted by a shift-unaware prediction model. The experiments are performed using three shift-unaware prediction models based on nine different settings including two main situations: (1) there is no labeled instance in the target domain; (2) there are a few labeled instances in the target domain. In these experiments bank failure financial data is used to validate the algorithm. The results demonstrate a significant improvement in the predictive accuracy, particularly in the second situation identified above.

Behl, B, Papageorgiou, I, Brown, C, Hall, R, Tipper, JL, Fisher, J & Ingham, E 2013, 'Biological effects of cobalt-chromium nanoparticles and ions on dural fibroblasts and dural epithelial cells', Biomaterials, vol. 34, no. 14, pp. 3547-3558.
View/Download from: Publisher's site

Belles-Sampera, J, Merigó, JM & Santolino, M 2013, 'Some New Definitions of Indicators for the Choquet Integral', AGGREGATION FUNCTIONS IN THEORY AND IN PRACTISE, vol. 228, pp. 467-476.
View/Download from: Publisher's site

Belles-Sampera, J, Merigó, JM, Guillén, M & Santolino, M 2013, 'The connection between distortion risk measures and ordered weighted averaging operators', Insurance: Mathematics and Economics, vol. 52, no. 2, pp. 411-420.
View/Download from: Publisher's site

Benesch, N, Hartung, J, Schallow, J, Deuse, J & Ferstl, H 2013, 'Unternehmenskooperationen in der Digitalen Fabrik', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 5, pp. 295-299.
View/Download from: Publisher's site
View description>>

Kurzfassung Mit zunehmender Etablierung von Unternehmenskooperationen steigt auch die Forderung nach einer effizienten Produktionsplanung in den entstehenden Netzwerken. Eine strukturierte Kooperation im Bereich der Digitalen Fabrik, wie etwa die Produktionsplanung, ist ein wesentlicher Erfolgsfaktor, stellt jedoch Unternehmen derzeit noch vor große Herausforderungen. Der vorliegende Beitrag stellt ein Konzept zur Integration der verteilten Produktionsplanung in Unternehmenskooperation im Rahmen der Digitalen Fabrik vor.

Beydoun, G & Hoffmann, A 2013, 'Dynamic evaluation of the development process of knowledge-based information systems', KNOWLEDGE AND INFORMATION SYSTEMS, vol. 35, no. 1, pp. 233-247.
View/Download from: Publisher's site

Beydoun, G & Low, G 2013, 'Generic modelling of security awareness in agent based systems', INFORMATION SCIENCES, vol. 239, pp. 62-71.
View/Download from: Publisher's site

Beydoun, G, Garcia-Sanchez, F, Vincent-Torres, CM, Lopez-Lorca, AA & Martinez-Bejar, R 2013, 'Providing metrics and automatic enhancement for hierarchical taxonomies', INFORMATION PROCESSING & MANAGEMENT, vol. 49, no. 1, pp. 67-82.
View/Download from: Publisher's site
View description>>

Taxonomies enable organising information in a human-machine understandable form, but constructing them for reuse and maintainability remains difficult. The paper presents a formal underpinning to provide quality metrics for a taxonomy under development. It proposes a methodology for semi-automatic building of maintainable taxonomies and outlines key features of the knowledge engineering context where the metrics and methodology are most suitable. The strength of the approach presented is that it is applied during the actual construction of the taxonomy. Users provide terms to describe different domain elements, as well as their attributes, and methodology uses metrics to assess the quality of this input. Changes according to given quality constraints are then proposed during the actual development of the taxonomy. © 2012 Elsevier Ltd. All rights reserved.

Beydoun, G, Xu, D & Sugumaran, V 2013, 'Service Oriented Architectures (SOA) Adoption Challenges', International Journal of Intelligent Information Technologies (IJIIT), vol. 9, no. 2, pp. 1-6.
View/Download from: Publisher's site
View description>>

Predictions for Service Oriented Architectures (SOA) to deliver transformational results to the role and capabilities of IT for businesses have fallen short. Unforseen challenges have often emerged in SOA adoption. They have fallen into two categories: technical issues stemming from service components reuse difficulties and organisational issues stemming from inadequate support or understanding of what is required from the executive management in an organisation to facilitate the technical rollout. This special issue of IJIIT presents a collection of papers which attempt to resolve some of these issues. This paper first explores and analyses the hindrances to the full exploitation of SOA.

Bharathy, G & Silverman, BG 2013, 'Holistically evaluating agent-based social systems models: a case study.', Simul., vol. 89, no. 1, pp. 102-135.
View/Download from: Publisher's site
View description>>

The philosophical perspectives on model evaluation can be broadly classified into reductionist/logical positivist and relativist/holistic. In this paper, we outline some of our past efforts in, and challenges faced during, evaluating models of social systems with cognitively detailed agents. Owing to richness in the model, we argue that the holistic approach and consequent continuous improvement are essential to evaluating complex social system models such as these. A social system built primarily of cognitively detailed agents can provide multiple levels of correspondence, both at observable and abstract aggregated levels. Such a system can also pose several challenges, including large feature spaces, issues in information elicitation with database, experts and news feeds, counterfactuals, fragmented theoretical base, and limited funding for validation. We subscribe to the view that no model can faithfully represent reality, but detailed, descriptive models are useful in learning about the system and bringing about a qualitative jump in understanding of the system it attempts to model – provided they are properly validated. Our own approach to model evaluation is to consider the entire life cycle and assess the validity under two broad dimensions of (1) internally focused validity/quality achieved through structural, methodological, and ontological evaluations; and (2) external validity consisting of micro validity, macro validity, and qualitative, causal and narrative validity. In this paper, we also elaborate on selected validation techniques that we have employed in the past. We recommend a triangulation of multiple validation techniques, including methodological soundness, qualitative validation techniques, such as face validation by experts and narrative validation, and formal validation tests, including correspondence testing.

Billa, L & Pradhan, B 2013, 'GIS modeling for selection of a transfer station site for residential solid waste separation and recycling', Pertanika Journal of Science and Technology, vol. 21, no. 2, pp. 487-498.
View description>>

In this study a GIS model was developed and spatial analytical techniques performed to identify and select a suitable location for a waste transfer station in the sprawling suburban town of Petaling Jaya. The lack of a transfer station in urban centres of Malaysia has caused many problems and affects the efficiency of waste collection and disposal. With diminishing space for landfills and the increasing cost of solid waste management, the need for urban solid-waste recycling has become very important. However, finding a place for waste to be efficiently sorted before unwanted waste can be carried to disposal landfills has social and physical constraints. This study applies GIS techniques and analysis for site selection and identifies an acceptable area. In the model, environmental, physical and social constraints were taken into account, resulting in the selection of a potential area that is acceptable to the residents of the area because it is out of range of causing public nuisance and within minimum travelling distance for collection vehicles. The results show that the potential location for the transfer station should be in proximity of the industrial area of Petaling Jaya, allowing for the possible sale of recyclable materials to local industries. The location is also sited near a major highway to allow quick transportation of the rest of the unwanted waste to the landfill. © 2013 Universiti Putra Malaysia Press.

Biro, K, Pradhan, B, Buchroithner, M & Makeschin, F 2013, 'LAND USE/LAND COVER CHANGE ANALYSIS AND ITS IMPACT ON SOIL PROPERTIES IN THE NORTHERN PART OF GADARIF REGION, SUDAN', Land Degradation & Development, vol. 24, no. 1, pp. 90-102.
View/Download from: Publisher's site
View description>>

ABSTRACTSeveral decades of intensive dry land farming in the Gadarif region, located in the Eastern part of Sudan, has led to rapid land use/land cover (LULC) changes mainly due to agricultural expansion, government policies and environmental calamities such as drought. In this paper, an attempt has been made to analyse and monitor the LULC changes using multi‐temporal Landsat data for the years 1979, 1989 and 1999 and ASTER data for the year 2009. In addition, efforts were made to discuss the impact of LULC changes on the selected soil properties. For this, a post‐classification comparison technique was used to detect LULC changes from satellite images. Primarily, three main LULC types were selected to investigate the properties of soil, namely, cultivated land, fallow land and woodland. Moreover, soil samples were also collected at two depths of surface soil from ten sample plots for each of the LULC type. For these soil samples, various soil properties such as texture, bulk density, organic matter, soil pH, electrical conductivity, sodium adsorption ratio, phosphorous and potassium were analysed. The results showed that a significant and extensive change of LULC patterns has occurred in the last three decades in the study area. Further, laboratory tests revealed that soil properties were significantly affected by these LULC changes. The change of the physical and chemical properties of the soil may have attributed to the changes in the LULC resulting in land degradation, which in turn has led to a decline in soil productivity. Copyright © 2011 John Wiley & Sons, Ltd.

Biro, K, Pradhan, B, Sulieman, H & Buchroithner, M 2013, 'Exploitation of TerraSAR-X Data for Land use/Land Cover Analysis Using Object-Oriented Classification Approach in the African Sahel Area, Sudan', Journal of the Indian Society of Remote Sensing, vol. 41, no. 3, pp. 539-553.
View/Download from: Publisher's site

Biro, K, Pradhan, B, Sulieman, H & Buchroithner, M 2013, 'Exploitation of TerraSAR-X data for land use/land cover analysis using object-oriented classification approach in the African Sahel Area, Sudan', Journal of the Indian Society of Remote Sensing, vol. 41, no. 3, pp. 539-553.

Bjarnadottir, S, Li, Y & Stewart, MG 2013, 'Hurricane Risk Assessment of Power Distribution Poles Considering Impacts of a Changing Climate', Journal of Infrastructure Systems, vol. 19, no. 1, pp. 12-24.
View/Download from: Publisher's site
View description>>

Storm-related power outages cause approximately $270 million per year in repair costs in the United States. As a result of increasing sea surface temperatures caused by the changing climate, hurricane patterns (i.e., intensity/frequency) may change; however, there is much uncertainty as to how climate change may affect hurricane patterns. Implications of the changing hazard patterns on hurricane risk warrants an investigation to evaluate the potential impact of climate change on power distribution pole failure. This paper proposes a probabilistic framework to evaluate the vulnerability of power distribution poles to hurricanes under the potential impact of a changing climate. Two methods for the design of distribution poles in the United States, the National Electric Safety Code method and the ASCE method, are considered to investigate the difference of the vulnerability of a distribution pole subjected to hurricane hazard. The framework includes a reliability analysis of the designed power distribution poles using fragility analysis, the effects of degradation of timber poles, probabilistic wind models, and an assessment of the potential impacts of climate change on the annual failure probability of power distribution poles. This paper finds that climate change may have a significant effect on the structural failure probabilities of distribution poles. The age of the poles has a significant impact on the reliability of power distribution poles, which warrants the exploration of cost-effective methods to determine when a distribution pole should be replaced to ensure adequate strength to withstand wind loads. © 2013 American Society of Civil Engineers.

Blamires, SJ & Spencer, R-J 2013, 'Influence of Habitat and Predation on Population Dynamics of the Freshwater TurtleMyuchelys georgesi', Herpetologica, vol. 69, no. 1, pp. 46-57.
View/Download from: Publisher's site

Blamires, SJ, Hou, C, Chen, L-F, Liao, C-P & Tso, I-M 2013, 'Three-dimensional barricading of a predatory trap reduces predation and enhances prey capture', Behavioral Ecology and Sociobiology, vol. 67, no. 5, pp. 709-714.
View/Download from: Publisher's site

Blamires, SJ, Wu, C-C, Wu, C-L, Sheu, H-S & Tso, I-M 2013, 'Uncovering Spider Silk Nanocrystalline Variations That Facilitate Wind-Induced Mechanical Property Changes', Biomacromolecules, vol. 14, no. 10, pp. 3484-3490.
View/Download from: Publisher's site

Bliuc, D, Nguyen, ND, Nguyen, TV, Eisman, JA & Center, JR 2013, 'Compound risk of high mortality following osteoporotic fracture and refracture in elderly women and men', Journal of Bone and Mineral Research, vol. 28, no. 11, pp. 2317-2324.
View/Download from: Publisher's site
View description>>

ABSTRACT   After fracture there is increased risk of refracture and premature mortality. These outcomes, particularly premature mortality following refracture, have not previously been studied together to understand overall mortality risk. This study examined the long-term cumulative incidence of subsequent fracture and total mortality with mortality calculated as a compound risk and separated according to initial and refracture. Community-dwelling participants aged 60+ years from Dubbo Osteoporosis Epidemiology Study with incident fractures, followed prospectively for further fractures and deaths from 1989 to 2010. Subsequent fracture and mortality ascertained using cumulative incidence competing risk models allowing four possible outcomes: death without refracture; death following refracture; refracture but alive, and event-free. There were 952 women and 343 men with incident fracture. Within 5 years following initial fracture, 24% women and 20% men refractured; and 26% women and 37% men died without refracture. Of those who refractured, a further 50% of women and 75% of men died, so that total 5-year mortality was 39% in women and 51% in men. Excess mortality was 24% in women and 27% in men. Although mortality following refracture occurred predominantly in the first 5 years post–initial fracture, total mortality (post-initial and refracture) was elevated for 10 years. Most of the 5-year to 10-year excess mortality was associated with refracture. The long-term (>10 years) refracture rate was reduced, particularly in the elderly as a result of their high mortality rate. The 30% alive beyond 10 years postfracture were at low risk of further adverse outcomes. Refractures contribute substantially to overall mortality associated with fracture. The majority of the mortality and refractures occurred in the first 5 years following the...

Blooma, MJ, Kurian, JC, Chua, AYK, Goh, DHL & Lien, NH 2013, 'Social question answering: Analyzing knowledge, cognitive processes and social dimensions of micro-collaborations', Computers & Education, vol. 69, pp. 109-120.
View/Download from: Publisher's site

Bohnen, F, Buhl, M & Deuse, J 2013, 'Systematic procedure for leveling of low volume and high mix production', CIRP Journal of Manufacturing Science and Technology, vol. 6, no. 1, pp. 53-58.
View/Download from: Publisher's site
View description>>

The application of conventional leveling approaches is limited to large scale production. This paper presents a systematic procedure for leveling of low volume and high mix production. It employs clustering techniques to group product types into product families. After that, a family-based leveling pattern is created which describes a repetitive sequence of capacity slots considering all families. According to the leveling pattern, each family is manufactured within a periodic interval. The paper provides a brief overview of the systematic procedure. It focuses on the creation of the leveling pattern using operations research methods and presents a real life application. © 2012 CIRP.

Boomer, KMB, Weller, DE, Jordan, TE, Linker, L, Liu, Z, Reilly, J, Shenk, G & Voinov, AA 2013, 'Using Multiple Watershed Models to Predict Water, Nitrogen, and Phosphorus Discharges to the Patuxent Estuary¹', JAWRA Journal of the American Water Resources Association, vol. 49, no. 1, pp. 15-39.
View/Download from: Publisher's site
View description>>

Boomer, Kathleen M.B., Donald E. Weller, Thomas E. Jordan, Lewis Linker, Zhi‐Jun Liu, James Reilly, Gary Shenk, and Alexey A. Voinov, 2012. Using Multiple Watershed Models to Predict Water, Nitrogen, and Phosphorus Discharges to the Patuxent Estuary. Journal of the American Water Resources Association (JAWRA) 1‐25. DOI: 10.1111/j.1752‐1688.2012.00689.xAbstract:  We analyzed an ensemble of watershed models that predict flow, nitrogen, and phosphorus discharges. The models differed in scope and complexity and used different input data, but all had been applied to evaluate human impacts on discharges to the Patuxent River or to the Chesapeake Bay. We compared predictions to observations of average annual, annual time series, and monthly discharge leaving three basins. No model consistently matched observed discharges better than the others, and predictions differed as much as 150% for every basin. Models that agreed best with the observations in one basin often were among the worst models for another material or basin. Combining model predictions into a model average improved overall reliability in matching observations, and the range of predictions helped describe uncertainty. The model average was not the closest to the observed discharge for every material, basin, and time frame, but the model average had the highest Nash–Sutcliffe performance across all combinations. Consistently poor performance in predicting phosphorus loads suggests that none of the models capture major controls. Differences among model predictions came from differences in model structures, input data, and the time period considered, and also to errors in the observed discharge. Ensemble watershed modeling helped identify research needs and quantify the uncertainties that should be considered when using the models in management decisions.

Borzeshi, EZ, Perez Concha, O, Xu, RYD & Piccardi, M 2013, 'Joint Action Segmentation and Classification by an Extended Hidden Markov Model', IEEE Signal Processing Letters, vol. 20, no. 12, pp. 1207-1210.
View/Download from: Publisher's site
View description>>

Hidden Markov models (HMMs) provide joint segmentation and classification of sequential data by efficient inference algorithms and have therefore been employed in fields as diverse as speech recognition, document processing, and genomics. However, conventional HMMs do not suit action segmentation in video due to the nature of the measurements which are often irregular in space and time, high dimensional and affected by outliers. For this reason, in this paper we present a joint action segmentation and classification approach based on an extended model: the hidden Markov model for multiple, irregular observations (HMM-MIO). Experiments performed over a concatenated version of the popular KTH action dataset and the challenging CMU multi-modal activity dataset (CMU-MMAC) report accuracies comparable to or higher than those of a bag-of-features approach, showing the usefulness of improved sequential models for joint action segmentation and classification tasks. © 1994-2012 IEEE.

Bressan, N, James, A, Lecce, L & McGregor, C 2013, 'Cardiorespiratory physiological data as an indicator of fentanyl pharmacokinetics and pharmacodynamics in critically ill newborn infants: A case report', Journal of Critical Care, vol. 28, no. 6, pp. e30-e31.
View/Download from: Publisher's site

Brunner, C, Peynot, T, Vidal‐Calleja, T & Underwood, J 2013, 'Selective Combination of Visual and Thermal Imaging for Resilient Localization in Adverse Conditions: Day and Night, Smoke and Fire', Journal of Field Robotics, vol. 30, no. 4, pp. 641-666.
View/Download from: Publisher's site
View description>>

Long‐term autonomy in robotics requires perception systems that are resilient to unusual but realistic conditions that will eventually occur during extended missions. For example, unmanned ground vehicles (UGVs) need to be capable of operating safely in adverse and low‐visibility conditions, such as at night or in the presence of smoke. The key to a resilient UGV perception system lies in the use of multiple sensor modalities, e.g., operating at different frequencies of the electromagnetic spectrum, to compensate for the limitations of a single sensor type. In this paper, visual and infrared imaging are combined in a Visual‐SLAM algorithm to achieve localization. We propose to evaluate the quality of data provided by each sensor modality prior to data combination. This evaluation is used to discard low‐quality data, i.e., data most likely to induce large localization errors. In this way, perceptual failures are anticipated and mitigated. An extensive experimental evaluation is conducted on data sets collected with a UGV in a range of environments and adverse conditions, including the presence of smoke (obstructing the visual camera), fire, extreme heat (saturating the infrared camera), low‐light conditions (dusk), and at night with sudden variations of artificial light. A total of 240 trajectory estimates are obtained using five different variations of data sources and data combination strategies in the localization method. In particular, the proposed approach for selective data combination is compared to methods using a single sensor type or combining both modalities without preselection. We show that the proposed framework allows for camera‐based localization resilient to a large range of low‐visibility conditions.

Budka, M & Gabrys, B 2013, 'Density-Preserving Sampling: Robust and Efficient Alternative to Cross-Validation for Error Estimation', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 1, pp. 22-34.
View/Download from: Publisher's site

Budka, M, Juszczyszyn, K, Musial, K & Musial, A 2013, 'Molecular model of dynamic social network based on e-mail communication', Social Network Analysis and Mining, vol. 3, no. 3, pp. 543-563.
View/Download from: Publisher's site
View description>>

In this work we consider an application of physically inspired sociodynamical model to the modelling of the evolution of email-based social network. Contrary to the standard approach of sociodynamics, which assumes expressing of system dynamics with heuristically defined simple rules, we postulate the inference of these rules from the real data and their application within a dynamic molecular model. We present how to embed the n-dimensional social space in Euclidean one. Then, inspired by the Lennard-Jones potential, we define a data-driven social potential function and apply the resultant force to a real e-mail communication network in a course of a molecular simulation, with network nodes taking on the role of interacting particles. We discuss all steps of the modelling process, from data preparation, through embedding and the molecular simulation itself, to transformation from the embedding space back to a graph structure. The conclusions, drawn from examining the resultant networks in stable, minimum-energy states, emphasize the role of the embedding process projecting the non–metric social graph into the Euclidean space, the significance of the unavoidable loss of information connected with this procedure and the resultant preservation of global rather than local properties of the initial network. We also argue applicability of our method to some classes of problems, while also signalling the areas which require further research in order to expand this applicability domain.

Burdon, S, Kilidar, HA & Mooney, G 2013, 'Evaluating an organisation's cultural readiness for innovation', International Journal of Business Innovation and Research, vol. 7, no. 5, pp. 572-572.
View/Download from: Publisher's site
View description>>

Innovation is often identified as a major driver of organisational growth in free market economies. However, just as often, there is lack of understanding on how best to enable the desired innovation outcomes. This paper addresses assessment of the internal culture of a large commercial engineering company seeking to enhance its ability to build, promote and sustain competitive advantage within its market. The paper's objective is to describe a framework that was designed and tested within the enterprise. The framework identifies and tracks cultural prerequisites underpinning employees' creative activities and how these align with the organisation's readiness to enact innovative outcomes. The findings confirm that many of the prerequisites for developing and progressing new ideas are socially dependent. In addition, efforts to innovate can easily be dissipated and derailed unless the prevailing organisation culture actively encourages interaction of staff and provides tuned and visible practices to easily capture, assess, reward and action new ideas produced by that interaction. Copyright © 2013 Inderscience Enterprises Ltd.

Cagno, E & Trianni, A 2013, 'Exploring drivers for energy efficiency within small- and medium-sized enterprises: First evidences from Italian manufacturing enterprises', Applied Energy, vol. 104, pp. 276-285.
View/Download from: Publisher's site

Cagno, E, Worrell, E, Trianni, A & Pugliese, G 2013, 'A novel approach for barriers to industrial energy efficiency', Renewable and Sustainable Energy Reviews, vol. 19, pp. 290-308.
View/Download from: Publisher's site

Cai, B, Huang, S, Liu, D, Yuan, S, Dissanayake, G, Lau, H & Pagac, D 2013, 'Multiobjective Optimization for Autonomous Straddle Carrier Scheduling at Automated Container Terminals', IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, vol. 10, no. 3, pp. 711-725.
View/Download from: Publisher's site
View description>>

A multiobjective optimization model is presented in this paper for the Autonomous Straddle Carriers Scheduling (ASCS) problem in automated container terminals, which is more practical than the single objective model. The model considers three objectives [ i.e., Straddle Carriers (SCs) traveling time, SC waiting time and finishing time of high-priority container-transferring jobs], and their weighted sum is investigated as the representative example. The presented model is formulated as a pickup and delivery problem with time windows in the form of binary integer programming. An exact algorithm based on Branch-and-Bound with Column Generation (BBCG) is employed for solving the multiobjective ASCS problem. Based on the map of an actual fully automated container terminal, simulation results are compared with the single-objective scheduling to demonstrate the effectiveness and flexibility of the presented multiobjective model, as well as the efficacy of the BBCG algorithm for autonomous SC scheduling. © 2012 IEEE.

Cai, C, Wang, Y & Geers, G 2013, 'Vehicle‐to‐infrastructure communication‐based adaptive traffic signal control', IET Intelligent Transport Systems, vol. 7, no. 3, pp. 351-360.
View/Download from: Publisher's site
View description>>

This study presents a method that combines travel‐time estimation and adaptive traffic signal control. The proposed method explores the concept of vehicle‐to‐infrastructure communication, through which real‐time vehicle localisation data become available to traffic controllers. This provides opportunity to frequently sample vehicle location and speed for online travel‐time estimation. The control objective is to minimise travel time for vehicles in the system. The proposed method is based on approximate dynamic programming, which allows the controller to learn from its own performance progressively. The authors use micro‐traffic simulation to evaluate the control performance against benchmark control methods in an idealistic environment, where errors in sampling vehicle location and speed are not considered. The results show that the proposed method outperforms benchmarking methods substantially and consistently.

Cai, K, Qin, QH, Luo, Z & Zhang, AJ 2013, 'Robust topology optimisation of bi-modulus structures', Computer-Aided Design, vol. 45, no. 10, pp. 1159-1169.
View/Download from: Publisher's site
View description>>

This study proposes a robust topology optimisation method for the design of bi-modulus structures under uncertain multiple loading conditions (MLC). The objective of the design optimisation is to minimise the standard deviation of the weighted structural compliance. The gradient-based method is applied to perform a sensitivity analysis for the identification of optimal design variables. A material replacement method is used to overcome difficulty in the sensitivity analysis due to the stress-dependent behaviour of the original bi-modulus material. In the material replacement operation, two new isotropic materials are identified to replace the original bi-modulus material according to its two moduli. To reduce the side effects of the material replacement operation on the final design, the local stiffness is modified in terms of the stress state. Typical numerical examples are used to demonstrate the effectiveness of the proposed method to the final design, including the load uncertainty on the optimal bi-modulus layout, as well as other factors, such as loading direction and the ratio between the two moduli of the bi-modulus material. The comparison between layouts of isotropic and bi-modulus materials also shows that the final bi-modulus material distribution is sensitive to loading directions in practical designs.

Cao, L 2013, 'Combined mining: Analyzing object and pattern relations for discovering and constructing complex yet actionable patterns', WIREs Data Mining and Knowledge Discovery, vol. 3, no. 2, pp. 140-155.
View/Download from: Publisher's site
View description>>

AbstractCombined mining is a technique for analyzing object relations and pattern relations, and for extracting and constructing actionable knowledge (patterns or exceptions). Although combined patterns can be built within a single method, such as combined sequential patterns by aggregating relevant frequent sequences, this knowledge is composed of multiple constituent components (the left hand side) from multiple data sources, which are represented by different feature spaces, or identified by diverse modeling methods. In some cases, this knowledge is also associated with certain impacts (influence, action, or conclusion, on the right hand side). This paper presents an abstract high‐level picture of combined mining and the combined patterns from the perspective of object and pattern relation analysis. Several fundamental aspects of combined pattern mining are discussed, including feature interaction, pattern interaction, pattern dynamics, pattern impact, pattern relation, pattern structure, pattern paradigm, pattern formation criteria, and pattern presentation (in terms of pattern ontology and pattern dynamic charts). We also briefly illustrate the concepts and discuss how they can be applied to mining complex data for complex knowledge in either a multifeature, multisource, or multimethod scenario. © 2013 Wiley Periodicals, Inc.This article is categorized under:Algorithmic Development > Ensemble Methods

Cao, L, Yu, PS, Motoda, H & Williams, G 2013, 'Special issue on behavior computing', Knowledge and Information Systems, vol. 37, no. 2, pp. 245-249.
View/Download from: Publisher's site
View description>>

NA

Cao, X, Wang, J, Wang, Z, Du, J, Yuan, X, Huang, W, Meng, J, Gu, H, Nie, Y, Ji, B, Hu, S & Zheng, Z 2013, 'MicroRNA profiling during rat ventricular maturation: A role for miR‐29a in regulating cardiomyocyte cell cycle re‐entry', FEBS Letters, vol. 587, no. 10, pp. 1548-1555.
View/Download from: Publisher's site
View description>>

Recent studies demonstrated that the mammalian heart possesses some capacity to proliferate. We observed cardiomyocyte proliferation within 4 weeks of age (P4W) in rats. We found 95 microRNAs that are differentially expressed in P4W cardiomyocytes. MicroRNA‐29a was among the most highly up‐regulated microRNAs in P4W cardiomyocytes. Overexpression of microRNA‐29a suppressed the proliferation of H9c2 cell line. MicroRNA‐29a inhibition induced cardiomyocytes to proliferate, accelerated the G1/S and G2/M transition, and up‐regulated the cell cycle gene expression. Cyclin D2 (CCND2) was identified as a direct target of microRNA‐29a. These findings indicate that microRNA‐29a is involved in cardiomyocyte proliferation during postnatal development.

Cao, Y, Xia, L & Ying, M 2013, 'Probabilistic automata for computing with words', JOURNAL OF COMPUTER AND SYSTEM SCIENCES, vol. 79, no. 1, pp. 152-172.
View/Download from: Publisher's site
View description>>

Usually, probabilistic automata and probabilistic grammars have crisp symbols as inputs, which can be viewed as the formal models of computing with values. In this paper, we first introduce probabilistic automata and probabilistic grammars for computing with (some special) words, where the words are interpreted as probabilistic distributions or possibility distributions over a set of crisp symbols. By probabilistic conditioning, we then establish a retraction principle from computing with words to computing with values for handling crisp inputs and a generalized extension principle from computing with words to computing with all words for handling arbitrary inputs. These principles show that computing with values and computing with all words can be respectively implemented by computing with some special words. To compare the transition probabilities of two near inputs, we also examine some analytical properties of the transition probability functions of generalized extensions. Moreover, the retractions and the generalized extensions are shown to be equivalence-preserving. Finally, we clarify some relationships among the retractions, the generalized extensions, and the extensions studied by Qiu and Wang. © 2012 Elsevier Inc.

Carmichael, MG & Liu, D 2013, 'Estimating Physical Assistance Need Using a Musculoskeletal Model', IEEE Transactions on Biomedical Engineering, vol. 60, no. 7, pp. 1912-1919.
View/Download from: Publisher's site
View description>>

Technologies that provide physical assistance during tasks are often required to provide assistance specific to the task and person performing it. An example is robotic rehabilitation in which the assistance-as-needed (AAN) paradigm aims to provide operators with the minimum assistance required to perform the task. Current approaches use empirical performance-based methods which require repeated observation of the specific task before an estimate of the needed assistance can be determined. In this paper, we present a new approach utilizing a musculoskeletal model (MM) of the upper limb to estimate the operator's assistance needs with respect to physical tasks. With capabilities of the operator defined at the muscular level of the MM, an optimization model is used to estimate the operator's strength capability. Strength required to perform a task is calculated using a task model. The difference or gap between the operator's strength capability and the strength required to execute a task forms the basis for the new AAN paradigm. We show how this approach estimates the effects of limb pose, load direction, and muscle impairments on a person's ability to perform tasks. © 1964-2012 IEEE.

Carter, DR, Cheung, BB, Liu, T, Au, C, Norris, MD, Haber, M, Murray, J, Gurova, KV, Gudkov, AV & Marshall, GM 2013, 'Abstract 5043: The facilitates chromatin transcription (FACT) protein complex promotes neuroblastoma tumor initiation.', Cancer Research, vol. 73, no. 8_Supplement, pp. 5043-5043.
View/Download from: Publisher's site
View description>>

Abstract Tumour initiation in the TH-MYCN transgenic mouse model of neuroblastoma is characterised by transient repression of p53 stress responses in embryonal ganglionic neuroblasts, causing them to persist postnatally as cancer-prone lesions 1, 2. p53 re-activation may be a potential therapeutic strategy for removal of these lesions before they later transform in response to oncogenic stimuli. One potential target for p53 activation is the FACT protein complex which is known to inhibit p53 signalling. Here we show that high mRNA expression levels of the two FACT subunits, SSRP1 and SPT16, in human primary neuroblastoma tissue were significantly associated with poor patient outcome (p<0.001) on Kaplan Meier analysis of 650 neuroblastoma patients. Both SSRP1 and SPT16 levels had a strong correlation with the level of MYCN expression, particularly in high risk MYCN-amplified neuroblastoma tissues (p<0.05). Inhibition of MYCN expression by a specific siRNA, lowered SSRP1 and SPT16 expression in two neuroblastoma tumor cell lines (BE(2)C and Kelly). Alamar blue assays revealed that a chemical inhibitor of FACT, Curaxin or CBL137, potently and selectively promoted cytotoxicity in neuroblastoma cell lines as compared to non-malignant MRC5 fibroblasts (p<0.001). To examine the role of FACT in MYCN-driven tumourigenesis we evaluated the effect of Curaxin on tumor initiation in TH-MYCN mice. Low micromolar Curaxin doses effectively restored normal in vitro, p53-dependent death responses to primary ganglion cells deprived of serum from neonatal TH-MYCN mice, while ganglion cultures from wild-type littermate mice were significantly more resistant to Curaxin treatment, with or without serum deprivation (p<0.001). Most importantly, prophylactic Curaxin treatment of 6 day old TH-MYCN mice had a marked inhibitory effect on postnatal ganglion neuroblast persistence in vivo for both hemizygote ...

Castel, A & François, R 2013, 'Calculation of the Overall Stiffness and Irreversible Deflection of Cracked Reinforced Concrete Beams', Advances in Structural Engineering, vol. 16, no. 12, pp. 2035-2042.
View/Download from: Publisher's site
View description>>

The method proposed in this paper aims to assess both the irreversible deflection of cracked reinforced concrete beams when unloaded and their overall stiffness under loading cycles which is relevant for in-situ analysis of existing structures. Only service stage is modeled and time-dependent effects such as creep and shrinkage are not taken into account. The modeling approach combines an existing model based on an empirical moment-curvature analytic relationship with a new Macro-Finite-Element (MFE) both implemented in a linear finite element analysis. MFEs are Beam Finite Elements, characterized by their average moment of inertia. The average moment of inertia is calculated by homogenization of the steel strain, concrete strain and neutral axis modeled between two consecutive bending cracks. The results of the MFE model have been successfully compared to experiments. The irreversible deflection represents a significant proportion of the total deflection in service and the overall stiffness of the cracked beams during the loading cycles is strongly under-estimated by existing models based on empirical moment-curvature relationships.

Cath, TY, Elimelech, M, McCutcheon, JR, McGinnis, RL, Achilli, A, Anastasio, D, Brady, AR, Childress, AE, Farr, IV, Hancock, NT, Lampi, J, Nghiem, LD, Xie, M & Yip, NY 2013, 'Standard Methodology for Evaluating Membrane Performance in Osmotically Driven Membrane Processes', DESALINATION, vol. 312, pp. 31-38.
View/Download from: Publisher's site

Center, JR & White, CP 2013, 'Bariatric surgery, weight loss and bone', Nature Reviews Endocrinology, vol. 9, no. 11, pp. 630-632.
View/Download from: Publisher's site

Cetindamar, D & Kilitcioglu, H 2013, 'Measuring the competitiveness of a firm for an award system', Competitiveness Review: An International Business Journal, vol. 23, no. 1, pp. 7-22.
View/Download from: Publisher's site
View description>>

PurposeCompetition is of interest to both policy makers and managers. However, existing studies concentrate on the measurement of national competitiveness while neglecting firm competitiveness. The purpose of this paper is to fill this gap by developing a comprehensive and generic measurement model to understand firm competitiveness. The model is used to develop an award system to help companies in the self‐assessment of their competitiveness.Design/methodology/approachThe theoretical base of the measurement of firm level competitiveness is driven from two national competitiveness models, namely World Competitive Yearbook and Global Competitiveness Index, while the assessment structure is based on the well‐known European Foundation for Quality Management Excellence Award. The competitiveness model developed in this paper is put into use in Turkey. The measures of the model are used for assessing the competitiveness of ten firms, in order to choose the most competitive firm of the year. The study in Turkey explains how the measurement model works by illustrating an example.FindingsThis paper attempts to develop a generic model in which the competition parameters do not change for individual companies. The model covers a wide variety of parameters that form the base of competition at the firm level. It is demonstrated that the competition model developed in the paper works in practice.Originality/valueThis paper contributes to the national competitiveness by providing deeper understanding of the dynamics of firm‐level competitiveness and provides some implications and suggestions for further studies.

Chai, J, Sheng, D, Carter, JP & Zhu, H 2013, 'Corrigendum to “Coefficient of consolidation from non-standard piezocone dissipation curves” [Comput. Geotech. 41 (2012) 13–22]', Computers and Geotechnics, vol. 51, pp. 128-128.
View/Download from: Publisher's site

Chan, KY, Dillon, T, Lam, HK, Ling, SSH & Nguyen, HT 2013, 'Special issue on hybrid evolutionary systems for manufacturing processes', APPLIED SOFT COMPUTING, vol. 13, no. 3, pp. 1329-1331.
View/Download from: Publisher's site

Chan, MY, Nguyen, ND, Center, JR, Eisman, JA & Nguyen, TV 2013, 'Quantitative ultrasound and fracture risk prediction in non-osteoporotic men and women as defined by WHO criteria', Osteoporosis International, vol. 24, no. 3, pp. 1015-1022.
View/Download from: Publisher's site

Chanan, AP, Vigneswaran, S, Kandasamy, J & Johir, MA 2013, 'Need for a fresh look at phosphorus management in wastewater treatment: Trash to treasure', Sustainable Environment Research, vol. 23, no. 1, pp. 23-31.
View description>>

Eutrophication of water bodies is a major, global environmental problem. It is now well understood that its main cause is excessive amounts of nutrients such as phosphorus. Stringent laws were therefore introduced across the world, requiring that the level of the P be significantly reduced. Consequently, the focus for wastewater treatment industry became the elimination of phosphorus in effluent stream. Treatment technologies capable of removing over 90% of phosphorus from wastewater have now been developed. However, these phosphorus removal options are likely to be ineffective in the future. The future would call for a shift to the primary goal of phosphorus removal to 'capturing and reusing' phosphorus. This paper calls for a re-think in developing phosphorus management programs. Discussing Fertigation as step-one in phosphorus reclamation, the paper will further elaborate phosphorus recovery opportunities such as ion-exchange that can be retrofitted to existing wastewater treatment plants.

Chang, L, Yu, JX & Qin, L 2013, 'Fast Maximal Cliques Enumeration in Sparse Graphs.', Algorithmica, vol. 66, no. 1, pp. 173-186.
View/Download from: Publisher's site
View description>>

In this paper, we consider the problem of generating all maximal cliques in a sparse graph in polynomial delay. Given a graph G=(V,E) with n vertices and m edges, the latest and fastest polynomial delay algorithm for sparse graphs enumerates all maximal cliques in O(δ 4) time delay, where δ is the maximum degree of vertices. However, it requires an O(n×m) preprocessing time. We improve it in two aspects. First, our algorithm does not need preprocessing. Therefore, our algorithm is a truly polynomial delay algorithm. Second, our algorithm enumerates all maximal cliques in O(δ×H 3) time delay, where H is the so called H-value of a graph or equivalently it is the smallest integer satisfying |{vâ̂̂Vâ̂£δ(v)≥H}|≤H given δ(v) as the degree of a vertex. In real-world network data, H usually is a small value and much smaller than δ. © 2012 Springer Science+Business Media, LLC.

Che Mat, R, Shariff, ARM, Pradhan, B, Mahmud, AR, Shafry, M, Rahim, M & Rehman, A 2013, 'A Comparison between four-tier framework and three-tier framework for online applications of 3D GIS visualization', Life Science Journal, vol. 10, no. 3, pp. 1534-1540.
View description>>

Online application of 3D visualization for GIS (Geographic Information System) data is of interest to not only professionals such as cartographers, geographers, geologists and psychologists but also popular among the ordinary people. The system's conventional design is generated from client/server based architecture. This architecture is the main platform for designing the online system architecture, which works based on the distributing concept which is 'tier'. The tier is required to separate the works/tasks between the system architecture. Currently, three-tiers architecture is the most well-known architecture used in GIS applications and other application. However, this architecture has a drawback on the middle tier which needs more processing power to meet the request from multiple of users. GIS applications, especially which involve 3D visualization generate a massive amount of data. Due to this situation, the use of the current three-tier framework for online application of 3D visualization for GIS will decrease the performance of the system in terms of time for processing the request from the users. The aim of this study is to introduce the new four-tier framework and compare it with the existing three-tier framework. This framework consist of four-tier architecture, which is divided into client tier, logic tier, visualization process tier, and database tier. The comparison is based on response time, loading time, frames rate per second, CPU usage, and memory usage. The new framework shows superiority in its performance, and the processing power is reduced.

Chekli, L, Phuntsho, S, Kandasamy, J & Shon, H 2013, 'Assessing the aggregation behaviour of iron oxide nanoparticles by using a multi-method approach.', Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013, vol. 1, pp. 47-50.
View description>>

Iron nanoparticles are becoming increasingly popular for the treatment of contaminated soil and groundwater; however, their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate. Assessing their stability under environmental conditions is crucial for determining their environmental fate. A multi-method approach (including different size-measurement techniques) was used to thoroughly characterise the behaviour of iron oxide nanoparticles (Fe2O3NPs) under environmentally relevant conditions. Although recent studies have demonstrated the importance of using a multi-method approach when characterising nanoparticles, the majority of current studies continue to use a single-method approach. Discussions and examples to support the need of a multi-method approach to characterise the aggregation of nanoparticles will be presented in this study.

Chekli, L, Phuntsho, S, Roy, M & Shon, HK 2013, 'Characterisation of Fe-oxide nanoparticles coated with humic acid and Suwannee River natural organic matter', SCIENCE OF THE TOTAL ENVIRONMENT, vol. 461, pp. 19-27.
View/Download from: Publisher's site
View description>>

Iron oxide nanoparticles are becoming increasingly popular for various applications including the treatment of contaminated soil and groundwater; however, their mobility and reactivity in the subsurface environment are significantly affected by their tendency to aggregate. One solution to overcome this issue is to coat the nanoparticles with dissolved organic matter (DOM). The advantages of DOM over conventional surface modifiers are that DOM is naturally abundant in the environment, inexpensive, non-toxic and readily adsorbed onto the surface of metal oxide nanoparticles.In this study, humic acid (HA) and Suwannee River natural organic matter (SRNOM) were tested and compared as surface modifiers for Fe2O3 nanoparticles (NPs). The DOM-coated Fe2O3 NPs were characterised by various analytical methods including: flow field-flow fractionation (FlFFF), high performance size exclusion chromatography (HPSEC) and Fourier transform infrared spectroscopy (FTIR). The stability of the coated NPs was then evaluated by assessing their aggregation and disaggregation behaviour over time.Results showed that both HA and SRNOM were rapidly and readily adsorbed on the surface of Fe2O3 NPs, providing electrosteric stabilisation over a wide range of pH. HPSEC results showed that the higher molecular weight components of DOM were preferentially adsorbed onto the surface of Fe2O3. As SRNOM consists of macromolecules with a higher molecular weight than HA, the measured size of the SRNOM-coated Fe2O3 NPs was 30% larger than the HA-coated Fe2O3 NPs. FTIR results indicated the occurrence of hydrogen bonding arising from electrostatic interaction between the DOM and Fe2O3 NPs. Finally, a stability study showed that after 14days, small agglomerates and aggregates were formed. The HA-coated Fe2O3 NPs formed agglomerates which were easily disaggregated using a vortex mixer, with the coated NPs returning to their initial size. However, SRNOM-coated Fe2O3 NPs were only partially disagg...

Chekli, L, Phuntsho, S, Roy, M, Lombi, E, Donner, E & Shon, HK 2013, 'Assessing the aggregation behaviour of iron oxide nanoparticles under relevant environmental conditions using a multi-method approach', WATER RESEARCH, vol. 47, no. 13, pp. 4585-4599.
View/Download from: Publisher's site
View description>>

Iron nanoparticles are becoming increasingly popular for the treatment of contaminated soil and groundwater; however, their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate. Assessing their stability under environmental conditions is crucial for determining their environmental fate. A multi-method approach (including different size-measurement techniques and the DLVO theory) was used to thoroughly characterise the behaviour of iron oxide nanoparticles (Fe2O3NPs) under environmentally relevant conditions. Although recent studies have demonstrated the importance of using a multi-method approach when characterising nanoparticles, the majority of current studies continue to use a single-method approach.Under some soil conditions (i.e. pH 7, 10mM NaCl and 2mM CaCl2) and increasing particle concentration, Fe2O3NPs underwent extensive aggregation to form large aggregates (>1μm). Coating the nanoparticles with dissolved organic matter (DOM) was investigated as an alternative 'green' solution to overcoming the aggregation issue instead of using the more commonly proposed polyelectrolytes. At high concentrations, DOM effectively covered the surface of the Fe2O3NPs, thereby conferring negative surface charge on the particles across a wide range of pH values. This provided electrostatic stabilisation and considerably reduced the particle aggregation effect. DOM-coated Fe2O3NPs also proved to be more stable under high ionic strength conditions. The presence of CaCl2, however, even at low concentrations, induced the aggregation of DOM-coated Fe2O3NPs, mainly via charge neutralisation and bridging. This has significant implications in regards to the reactivity and fate of these materials in the environment. © 2013 Elsevier Ltd.

Chen, B, Lam, W, Tsang, IW & Wong, T-L 2013, 'Discovering Low-Rank Shared Concept Space for Adapting Text Mining Models', IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 35, no. 6, pp. 1284-1297.
View/Download from: Publisher's site
View description>>

We propose a framework for adapting text mining models that discovers low-rank shared concept space. Our major characteristic of this concept space is that it explicitly minimizes the distribution gap between the source domain with sufficient labeled data and the target domain with only unlabeled data, while at the same time it minimizes the empirical loss on the labeled data in the source domain. Our method is capable of conducting the domain adaptation task both in the original feature space as well as in the transformed Reproducing Kernel Hilbert Space (RKHS) using kernel tricks. Theoretical analysis guarantees that the error of our adaptation model can be bounded with respect to the embedded distribution gap and the empirical loss in the source domain. We have conducted extensive experiments on two common text mining problems, namely, document classification and information extraction, to demonstrate the efficacy of our proposed framework. © 2013 IEEE.

Chen, C, Dong, D, Long, R, Petersen, IR & Rabitz, HA 2013, 'Sampling-based learning control of inhomogeneous quantum ensembles', Phys. Rev. A, vol. 89, p. 023402.
View description>>

Compensation for parameter dispersion is a significant challenge for controlof inhomogeneous quantum ensembles. In this paper, we present a systematicmethodology of sampling-based learning control (SLC) for simultaneouslysteering the members of inhomogeneous quantum ensembles to the same desiredstate. The SLC method is employed for optimal control of the state-to-statetransition probability for inhomogeneous quantum ensembles of spins as well as$\Lambda$ type atomic systems. The procedure involves the steps of (i) trainingand (ii) testing. In the training step, a generalized system is constructed bysampling members according to the distribution of inhomogeneous parametersdrawn from the ensemble. A gradient flow based learning and optimizationalgorithm is adopted to find the control for the generalized system. In theprocess of testing, a number of additional ensemble members are randomlyselected to evaluate the control performance. Numerical results are presentedshowing the success of the SLC method.

Chen, C, Dong, D, Qi, B, Petersen, IR & Rabitz, H 2013, 'Quantum Ensemble Classification: A Sampling-based Learning Control Approach', IEEE Transactions on Neural Networks and Learning Systems, vol. 28, pp. 1345-1359.
View description>>

Quantum ensemble classification has significant applications indiscrimination of atoms (or molecules), separation of isotopic molecules andquantum information extraction. However, quantum mechanics forbidsdeterministic discrimination among nonorthogonal states. The classification ofinhomogeneous quantum ensembles is very challenging since there existvariations in the parameters characterizing the members within differentclasses. In this paper, we recast quantum ensemble classification as asupervised quantum learning problem. A systematic classification methodology ispresented by using a sampling-based learning control (SLC) approach for quantumdiscrimination. The classification task is accomplished via simultaneouslysteering members belonging to different classes to their corresponding targetstates (e.g., mutually orthogonal states). Firstly a new discrimination methodis proposed for two similar quantum systems. Then an SLC method is presentedfor quantum ensemble classification. Numerical results demonstrate theeffectiveness of the proposed approach for the binary classification oftwo-level quantum ensembles and the multiclass classification of multilevelquantum ensembles.

Chen, J, Ji, Z, Kribs, D, Lütkenhaus, N & Zeng, B 2013, 'Symmetric Extension of Two-Qubit States', Phys. Rev. A, vol. 90, no. 3, pp. 032318-032318-10.
View/Download from: Publisher's site
View description>>

Quantum key distribution uses public discussion protocols to establish sharedsecret keys. In the exploration of ultimate limits to such protocols, theproperty of symmetric extendibility of underlying bipartite states $\rho_{AB}$plays an important role. A bipartite state $\rho_{AB}$ is symmetric extendibleif there exits a tripartite state $\rho_{ABB'}$, such that the $AB$ marginalstate is identical to the $AB'$ marginal state, i.e. $\rho_{AB'}=\rho_{AB}$.For a symmetric extendible state $\rho_{AB}$, the first task of the publicdiscussion protocol is to break this symmetric extendibility. Therefore tocharacterize all bi-partite quantum states that possess symmetric extensions isof vital importance. We prove a simple analytical formula that a two-qubitstate $\rho_{AB}$ admits a symmetric extension if and only if$\tr(\rho_B^2)\geq \tr(\rho_{AB}^2)-4\sqrt{\det{\rho_{AB}}}$. Given theintimate relationship between the symmetric extension problem and the quantummarginal problem, our result also provides the first analytical necessary andsufficient condition for the quantum marginal problem with overlappingmarginals.

Chen, L, Li, C, Huang, T, Chen, Y, Wen, S & Qi, J 2013, 'A synapse memristor model with forgetting effect', Physics Letters A, vol. 377, no. 45-48, pp. 3260-3265.
View/Download from: Publisher's site

Chen, P, Li, J, Wong, L, Kuwahara, H, Huang, JZ & Gao, X 2013, 'Accurate prediction of hot spot residues through physicochemical characteristics of amino acid sequences', PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS, vol. 81, no. 8, pp. 1351-1362.
View/Download from: Publisher's site
View description>>

Hot spot residues of proteins are fundamental interface residues that help proteins perform their functions. Detecting hot spots by experimental methods is costly and time-consuming. Sequential and structural information has been widely used in the compu

Chen, Z, Ngo, HH & Guo, W 2013, 'A Critical Review on the End Uses of Recycled Water', CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 43, no. 14, pp. 1446-1516.
View/Download from: Publisher's site
View description>>

Recycled water provides a viable opportunity to supplement water supplies as well as alleviate environmental loads. The authors examine the sources of recycled water and discusses various end uses. They focus on reviewing the historical development and current status of recycled water on a global scale with containing the evolvement of wastewater treatment technologies, water quality guidelines, and public attitudes. The authors also illustrate typical case studies of recycled water in a number of countries and regions, including Australia, Asia, the United States, Latin America, Europe, the Middle East, and Africa. These pilot studies can be good examples for the future projects. They identify the good prospects of further expansion and exploration of current and new end uses while emphasizing the integrated water planning and management as well as challenging and tasks in the future. © 2013 Copyright Taylor and Francis Group, LLC.

Chen, Z, Ngo, HH & Guo, W 2013, 'Risk Control in Recycled Water Schemes', CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 43, no. 22, pp. 2439-2510.
View/Download from: Publisher's site
View description>>

Recycled water is becoming one of the indispensable and reliable water resources at present. When it is introduced as an alternative source, risks on human health and the environment become major constraints driving the application and extension of recycled water. The authors examine the sources and associated risks of recycled water and introduce the practical risk control technologies on various end uses. They also review some existing risk assessment models by comparing their strengths and weaknesses toward the good approach of integrated modeling. Some critical suggestions on risk management and communication are made based on the given information. © 2013 Taylor and Francis Group, LLC.

Chen, Z, Ngo, HH, Guo, W & Wang, X 2013, 'Analysis of Sydney's recycled water schemes', FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING, vol. 7, no. 4, pp. 608-615.
View/Download from: Publisher's site
View description>>

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2012. Recycled water provides a viable opportunity to partially supplement fresh water supplies as well as substantially alleviate environmental loads. Currently, thousands of recycled water schemes have been successfully conducted in a number of countries and Sydney is one of the leading cities, which has made massive effort to apply water reclamation, recycling and reuse. This study aims to make a comprehensive analysis of recycled water schemes in Sydney for a wide range of end uses such as landscape irrigation, industrial process uses and residential uses (e.g., golf course irrigation, industrial cooling water reuse, toilet flushing and clothes washing etc.). For each representative recycled water scheme, this study investigates the involved wastewater treatment technologies, the effluent quality compared with specified guideline values and public attitudes toward different end uses. Based on these obtained data, multi criteria analysis (MCA) in terms of risk, cost-benefit, environmental and social aspects can be performed. Consequently, from the analytical results, the good prospects of further expansion and exploration of current and new end uses were identified toward the integrated water planning and management. The analyses could also help decision makers in making a sound judgment for future recycled water projects.

Chen, Z, Ngo, HH, Guo, W, Wang, XC, Miechel, C, Corby, N, Listowski, A & O'Halloran, K 2013, 'Analysis of social attitude to the new end use of recycled water for household laundry in Australia by the regression models', JOURNAL OF ENVIRONMENTAL MANAGEMENT, vol. 126, no. 1, pp. 79-84.
View/Download from: Publisher's site
View description>>

Recycled water for household laundry can be regarded as a promising strategy to alleviate the current demand on scarce water supplies. Public acceptability becomes fairly important to ensure the successful establishment and development of this new end use. To address the issue, this study conducted social surveys in two locations of Australia, Port Macquarie and Melbourne, where respondents were asked 17 questions. The regression models provide conclusions about which characteristics are more likely to lead to the acceptance of recycled water from society. Three attitudinal variables (RWAlterDW, Attitude and Cost) and three psychological variables (Odour, Reading and SmallUnit) were found to be the key driving forces behind domestic water reuse behaviour. These findings could drive the future research direction to achieve better public perception of this new end use of recycled water. © 2013 Elsevier Ltd.

Cheng, B, Ritz, C, Burnett, I & Zheng, X 2013, 'A General Compression Approach to Multi-Channel Three-Dimensional Audio', IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, vol. 21, no. 8, pp. 1676-1688.
View/Download from: Publisher's site

Cheng, P, Chen, Z, Rui, Y, Guo, YJ, Gui, L, Tao, M & Zhang, QT 2013, 'Channel Estimation for OFDM Systems over Doubly Selective Channels: A Distributed Compressive Sensing Based Approach', IEEE Transactions on Communications, vol. 61, no. 10, pp. 4173-4185.
View/Download from: Publisher's site
View description>>

Channel estimation for an orthogonal frequency-division multiplexing (OFDM) broadband system over a doubly selective channel is very challenging. This is mainly due to the significant Doppler shift, which results in a time-frequency doubly-selective (DS) channel. The DS channel features a large number of channel coefficients, which introduces inter-carrier interference (ICI) and forces the need for allocating a large number of pilot subcarriers. To tackle this problem, in this paper we propose a novel channel estimation scheme based on distributed compressive sensing (DCS) theory. Taking advantage of the basis expansion model (BEM) and the channel sparsity in the delay domain, we transform the original DS channel into a novel two-dimensional channel model, where several jointly sparse BEM coefficient vectors become the estimation goal. Then a special decoupling form originating from a novel sparse pilot pattern is designed for such estimation, which results in an ICI-free structure and enables the DCS application to make joint estimation of these vectors accurately. Combined with a smoothing treatment process, the proposed scheme can achieve significantly higher estimation accuracy than the existing ones, although with a much smaller number of pilot subcarriers. Theoretical analysis and simulation results both confirm its performance merits. © 2013 IEEE.

Cheng, S, Ji, JC & Zhou, J 2013, 'Fast synchronization of directionally coupled chaotic systems', APPLIED MATHEMATICAL MODELLING, vol. 37, no. 1-2, pp. 127-136.
View/Download from: Publisher's site
View description>>

The fast synchronization of directionally coupled chaotic systems under a chained interaction topology is studied by applying finite-time stability theory. It is shown that all chaotic systems can achieve synchronization in finite time as long as the coupling strength is strong enough. It is proved that the settling times are determined by the interaction strength, system parameters and initial conditions of the chaotic systems. Furthermore, it is found that the settling times are mainly dependent on the bounded value and dimension of the coupled chaotic systems when the individual chaotic sub-system is bounded. Finally, illustrative examples and numerical simulations are given to show the correctness of theoretical results.

Cheng, XW, Jiang, ZY, Wei, DB, Hao, L, Zhao, JW, Peng, JG, Lu, SZ & Jiang, LZ 2013, 'Effect of Water Vapor on Oxidation of Ferritic Stainless Steel 21Cr-0.6Mo-Nb-Ti in Simulated Reheating Environment', Advanced Materials Research, vol. 690-693, pp. 280-289.
View/Download from: Publisher's site
View description>>

High temperature oxidation of ferritic stainless steel 21Cr-0.6Mo-Nb-Ti was carried out isothermally at 1100 oC under different water vapour content conditions in an electrical furnace. Water vapour does accelerate the formation of oxide scale of stainless steel 21Cr-0.6Mo-Nb-Ti, however, it is not significant. Some oxide grains consist of spinel crystal structure, which should be spinel Manganese Chromite. In dry air atmosphere, the grain of the spinel is more and bigger than that in wet air. No breakaway oxidation occurs in the experiment indicating that 21Cr-0.6Mo-Nb-Ti has very high oxidation resistance, which might be contributed by the formation of MnCr2O4and compact protective chromia. In addition, continuous silica formed along and accumulated at the oxide metal interface performs like a diffusion barrier.

Chin-Teng Lin, Shu-Fang Tsai & Li-Wei Ko 2013, 'EEG-Based Learning System for Online Motion Sickness Level Estimation in a Dynamic Vehicle Environment', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 10, pp. 1689-1700.
View/Download from: Publisher's site
View description>>

Motion sickness is a common experience for many people. Several previous researches indicated that motion sickness has a negative effect on driving performance and sometimes leads to serious traffic accidents because of a decline in a person's ability to maintain self-control. This safety issue has motivated us to find a way to prevent vehicle accidents. Our target was to determine a set of valid motion sickness indicators that would predict the occurrence of a person's motion sickness as soon as possible. A successful method for the early detection of motion sickness will help us to construct a cognitive monitoring system. Such a monitoring system can alert people before they become sick and prevent them from being distracted by various motion sickness symptoms while driving or riding in a car. In our past researches, we investigated the physiological changes that occur during the transition of a passenger's cognitive state using electroencephalography (EEG) power spectrum analysis, and we found that the EEG power responses in the left and right motors, parietal, lateral occipital, and occipital midline brain areas were more highly correlated to subjective sickness levels than other brain areas. In this paper, we propose the use of a self-organizing neural fuzzy inference network (SONFIN) to estimate a driver's/passenger's sickness level based on EEG features that have been extracted online from five motion sickness-related brain areas, while either in real or virtual vehicle environments. The results show that our proposed learning system is capable of extracting a set of valid motion sickness indicators that originated from EEG dynamics, and through SONFIN, a neuro-fuzzy prediction model, we successfully translated the set of motion sickness indicators into motion sickness levels. The overall performance of this proposed EEG-based learning system can achieve an average prediction accuracy of ∼ 82%. © 2013 IEEE.

Chiu, C & Chaczko, Z 2013, 'Enhancement of Surgical Training Practice with the Spring Tensor Heuristic Model', International Journal of Electronics and Telecommunications, vol. 59, no. 3, pp. 237-244.
View/Download from: Publisher's site
View description>>

Abstract The enhancement of surgical simulation tools is an important research study, to assist in the assessment and feedback of medical training practice. In this research, the Spring Tensor Model (STEM) has been used for laparoscopic end-effector navigation through obstacles and high-risk areas. The modelling of the surgical trainer as part of the laparoscopic simulator seeks to emulate the physical environment as a virtualised representation in the integrated infrastructure. Combining sensor network framework paradigms to a surgical knowledge-based construct demonstrates how STEMcan enhance medical practice. The architectural hybridisation of the training framework has enabled the adaptation of STEM modelling techniques for a simulated laparoscopic training methodology. The primary benefit of the architecture is that this integration strategy has resulted in a seamless transition of the heuristic framework to be applied to surgical training.

Choi, Y, Bressan, N, James, A, Pugh, E & McGregor, C 2013, 'Design of temporal analysis of neonatal vagal spells at different gestational ages using the artemis' framework', Journal of Critical Care, vol. 28, no. 1, pp. e4-e5.
View/Download from: Publisher's site

Chon, K, Cho, J & Shon, HK 2013, 'A pilot-scale hybrid municipal wastewater reclamation system using combined coagulation and disk filtration, ultrafiltration, and reverse osmosis: Removal of nutrients and micropollutants, and characterization of membrane foulants', Bioresource Technology, vol. 141, no. 1, pp. 109-116.
View/Download from: Publisher's site
View description>>

A pilot-scale municipal wastewater reclamation system using combined coagulation and disk filtration (CCDF), ultrafiltration (UF), and reverse osmosis (RO) membrane has been built to investigate removal of water contaminants and fouling mitigation. The reclaimed water using the pilot system could meet draft regulations on wastewater reuse of the California Department of Public Health (DOC: 0.5 mgC/L; TN: 5 mgN/L). The removal of micropolluants by the CCDF process and UF could not be evaluated by their MW, Log D, and charge characteristics. However, they were identified as governing factors affecting the removal of micropollutants by the RO. The CCDF process might effectively remove particulate materials capable of contributing to cake layer formation on the UF membrane surfaces but the residual coagulants provided a strong effect on fouling formation of the UF membrane. Thus, hydrophobic fractions of the desorbed UF membrane foulants were higher than those of the desorbed RO membrane foulants.

Chon, K, Cho, J & Shon, HK 2013, 'Advanced characterization of algogenic organic matter, bacterial organic matter, humic acids and fulvic acids', Water Science and Technology, vol. 67, no. 10, pp. 2228-2235.
View/Download from: Publisher's site
View description>>

Advanced characterization techniques of organic matter, including bulk organic characterization, size-exclusion chromatography, three-dimensional excitation–emission matrix, Fourier transform infrared spectroscopy, and fractionations using Amberlite XAD-8/4 resins, were used to investigate differences and similarities in the physicochemical properties of four different organic matter, namely algogenic organic matter (AOM), bacterial organic matter (BOM), Suwanee River humic acids (SRHA) and Suwanee River fulvic acids (SRFA). From the comparison of characteristics of the AOM, BOM, SRHA, and SRFA, it was identified that the specific UV absorbance, molar ratio of organic nitrogen to organic carbon, molecular weight, fluorescence characteristics, functional group compositions, and relative hydrophobicity/hydrophilicity of all the tested organic matter were considerably different from their sources. The SRHA and SRFA were mainly composed of hydrophobic fractions while the AOM and BOM included more hydrophilic fractions than the SRHA and SRFA due to the alcohol and amide functional groups. This indicated that the origin of organic matter in natural waters can be predicted by their physicochemical characteristics, and the source identification of organic matter provides a better understanding of the interactions between the origin of organic matter and water treatment processes (e.g., coagulation and membrane filtration).

Chon, K, Cho, J & Shon, HK 2013, 'Fouling characteristics of a membrane bioreactor and nanofiltration hybrid system for municipal wastewater reclamation', Bioresource Technology, vol. 130, pp. 239-247.
View/Download from: Publisher's site
View description>>

A laboratory-scale membrane bioreactor (MBR) and nanofiltration (NF) hybrid system has been built to investigate effects of changes in characteristics of effluent organic matter by the MBR on fouling characteristics of the NF membranes. Large amounts of polysaccharide-like substances with small molecular weight and strong fluorescence intensity at the excitation wavelength of 230 nm and the emission wavelength of 420 nm were produced by microbial growth in the MBR. These substances had a great influence on fouling formation of the NF membranes. Fouling characteristics of the MBR were governed by both hydrophobic and hydrophilic fractions while hydrophilic fractions were found as major constituents of the desorbed NF membrane foulants. Flux decline rates of the NF membranes were closely associated with differences in their fouling layer compositions, meaning that performances of the NF membranes (i.e., flux decline) could be influenced by the membrane characteristics (i.e., surface zeta potential and contact angle).

Chu, Q-X, Mao, C-X & Zhu, H 2013, 'A Compact Notched Band UWB Slot Antenna With Sharp Selectivity and Controllable Bandwidth', IEEE Transactions on Antennas and Propagation, vol. 61, no. 8, pp. 3961-3966.
View/Download from: Publisher's site

Cirelli Josie, McGregor Carolyn, Graydon Brenda & James Andrew 2013, 'Analysis of Continuous Oxygen Saturation Data for Accurate Representation of Retinal Exposure to Oxygen in the Preterm Infant', Stud Health Technol Inform, vol. 183, pp. 126-131.
View/Download from: Publisher's site
View description>>

Maintaining blood oxygen saturation within the intended target range for preterm infants receiving neonatal intensive care is challenging. Supplemental oxygen is believed to lead to increased risk of retinopathy of prematurity and hence managing the level of oxygen within this population is important within their care. Current quality improvement activities use coarse hourly spot readings to measure supplemental oxygen levels as associated with targeted ranges that vary based on gestational age. In this research we use Artemis, a real-time online healthcare analytics platform to ascertain if the collection of second by second data provides a better representation of retinal exposure to oxygen than an infrequent, intermittent spot reading. We show that Artemis is capable of producing more accurate information from the higher frequency data, as it includes all the episodic events in the activity of the hour, which provides a better understanding of oxygen fluctuation ranges which affect the physiological status of the infant.

Consoli, NC, Festugato, L, da Rocha, CG & Cruz, RC 2013, 'Key parameters for strength control of rammed sand–cement mixtures: Influence of types of portland cement', Construction and Building Materials, vol. 49, pp. 591-597.
View/Download from: Publisher's site

Cowern, NEB, Simdyankin, S, Ahn, C, Bennett, NS, Goss, JP, Hartmann, J-M, Pakfar, A, Hamm, S, Valentin, J, Napolitani, E, De Salvador, D, Bruno, E & Mirabella, S 2013, 'Extended Point Defects in Crystalline Materials: Ge and Si', Physical Review Letters, vol. 110, no. 15.
View/Download from: Publisher's site

Croucher, DR, Hochgräfe, F, Zhang, L, Liu, L, Lyons, RJ, Rickwood, D, Tactacan, CM, Browne, BC, Ali, N, Chan, H, Shearer, R, Gallego-Ortega, D, Saunders, DN, Swarbrick, A & Daly, RJ 2013, 'Involvement of Lyn and the Atypical Kinase SgK269/PEAK1 in a Basal Breast Cancer Signaling Pathway', Cancer Research, vol. 73, no. 6, pp. 1969-1980.
View/Download from: Publisher's site
View description>>

Abstract Basal breast cancer cells feature high expression of the Src family kinase Lyn that has been implicated in the pathogenicity of this disease. In this study, we identified novel Lyn kinase substrates, the most prominent of which was the atypical kinase SgK269 (PEAK1). In breast cancer cells, SgK269 expression associated with the basal phenotype. In primary breast tumors, SgK269 overexpression was detected in a subset of basal, HER2-positive, and luminal cancers. In immortalized MCF-10A mammary epithelial cells, SgK269 promoted transition to a mesenchymal phenotype and increased cell motility and invasion. Growth of MCF-10A acini in three-dimensional (3D) culture was enhanced upon SgK269 overexpression, which induced an abnormal, multilobular acinar morphology and promoted extracellular signal–regulated kinase (Erk) and Stat3 activation. SgK269 Y635F, mutated at a major Lyn phosphorylation site, did not enhance acinar size or cellular invasion. We show that Y635 represents a Grb2-binding site that promotes both Stat3 and Erk activation in 3D culture. RNA interference–mediated attenuation of SgK269 in basal breast cancer cells promoted acquisition of epithelial characteristics and decreased anchorage-independent growth. Together, our results define a novel signaling pathway in basal breast cancer involving Lyn and SgK269 that offers clinical opportunities for therapeutic intervention. Cancer Res; 73(6); 1969–80. ©2012 AACR.

da Rocha, CG & Kemmer, SL 2013, 'Method to Implement Delayed Product Differentiation in Construction of High-Rise Apartment Building Projects', Journal of Construction Engineering and Management, vol. 139, no. 10, pp. 05013001-05013001.
View/Download from: Publisher's site

Dackermann, U, Li, J, Rijal, R & Samali, B 2013, 'A Vibration-Based Approach for the Estimation of the Loss of Composite Action in Timber Composite Systems', STRUCTURAL HEALTH ASSESSMENT OF TIMBER STRUCTURES, vol. 778, pp. 462-469.
View/Download from: Publisher's site
View description>>

This paper presents a novel approach for the determination of the loss of composite action for timber composite systems using only measurements from non-destructive vibration testing. Traditionally, the composite action of a system is evaluated from static load testing using deflection measurements. However, static load testing is expensive, time consuming and inappropriate for existing flooring systems. The method proposed in this paper is based on the Damage Index (DI) method, which uses changes in modal strain energies, to detect locations and severities of damage. In the proposed method, a new Loss of Composite Action Index (LCAI), which is derived from direct mode shape measurements obtained from dynamic testing, is introduced to evaluate the loss of composite action. The proposed method is tested and validated on numerical and experimental models of a timber composite beam structure, which consists of two timber components that are connected with different numbers of screws to simulate various degrees of partial composite states. The results obtained from the new method are very encouraging and show a clear trend of the proposed dynamic-based LCAI in indicating the loss of composite action in the investigated timber composite structure. © (2013) Trans Tech Publicutions, Switzerland.

Dale-Jones, G, Hancock, P & Willey, K 2013, 'Accounting Students in an Australian University Improve their Writing: But How Did it Happen?', Accounting Education, vol. 22, no. 6, pp. 544-562.
View/Download from: Publisher's site
View description>>

The ability to communicate ' orally and in writing' is a graduate attribute that employers in many countries rank as number one in importance, aside from relevant qualifications. This paper reports the implementation and evaluation of a collaborative peer assessment and self-assessment learning and teaching (L&T) initiative, which was designed to improve postgraduate students' judgment of writing standards and to improve their own writing according to that standard. The initiative was embedded in an introductory financial accounting unit in an Australian university. In a mixed methods study, the matched pair design revealed improvements in the written communication skills of students as determined by an independent assessor. There was also statistically significant improvement in the ability of students to apply assessment standards to grammatical, structural and presentation components of written communication. Whereas it was not possible to attribute the improvements entirely to the collaborative peer assessment initiative, our observations and students' self-reporting comments suggest that the L&T initiative was effective

Daqamseh, ST, Mansor, S, Pradhan, B, Billa, L & Mahmud, AR 2013, 'Potential fish habitat mapping using MODIS-derived sea surface salinity, temperature and chlorophyll-a data: South China Sea Coastal areas, Malaysia', Geocarto International, vol. 28, no. 6, pp. 546-560.
View/Download from: Publisher's site

Davidson, PL, Wilson, SJ, Chalmers, DJ, Wilson, BD, Eager, D & McIntosh, AS 2013, 'Analysis of Energy Flow During Playground Surface Impacts', Journal of Applied Biomechanics, vol. 29, no. 5, pp. 628-633.
View/Download from: Publisher's site
View description>>

The amount of energy dissipated away from or returned to a child falling onto a surface will influence fracture risk but is not considered in current standards for playground impact-attenuating surfaces. A two-mass rheological computer simulation was used to model energy flow within the wrist and surface during hand impact with playground surfaces, and the potential of this approach to provide insights into such impacts and predict injury risk examined. Acceleration data collected on-site from typical playground surfaces and previously obtained data from children performing an exercise involving freefalling with a fully extended arm provided input. The model identified differences in energy flow properties between playground surfaces and two potentially harmful surface characteristics: more energy was absorbed by (work done on) the wrist during both impact and rebound on rubber surfaces than on bark, and rubber surfaces started to rebound (return energy to the wrist) while the upper limb was still moving downward. Energy flow analysis thus provides information on playground surface characteristics and the impact process, and has the potential to identify fracture risks, inform the development of safer impact-attenuating surfaces, and contribute to development of new energy-based arm fracture injury criteria and tests for use in conjunction with current methods.

Dayong Ye, Minjie Zhang & Sutanto, D 2013, 'Self-Adaptation-Based Dynamic Coalition Formation in a Distributed Agent Network: A Mechanism and a Brief Survey', IEEE Transactions on Parallel and Distributed Systems, vol. 24, no. 5, pp. 1042-1051.
View/Download from: Publisher's site

Deng, W, Xie, F, Baltar, HTMCM & Goldys, EM 2013, 'Metal-enhanced fluorescence in the life sciences: here, now and beyond', Physical Chemistry Chemical Physics, vol. 15, no. 38, pp. 15695-15695.
View/Download from: Publisher's site

Devkota, KC, Regmi, AD, Pourghasemi, HR, Yoshida, K, Pradhan, B, Ryu, IC, Dhital, MR & Althuwaynee, OF 2013, 'Landslide susceptibility mapping using certainty factor, index of entropy and logistic regression models in GIS and their comparison at Mugling–Narayanghat road section in Nepal Himalaya', Natural Hazards, vol. 65, no. 1, pp. 135-165.
View/Download from: Publisher's site

Dietz, C, Richter, R & Deuse, J 2013, 'Variantenmanagement im Simultaneous Engineering', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 5, pp. 325-329.
View/Download from: Publisher's site
View description>>

Kurzfassung Viele Unternehmen verfolgen im Produktentstehungsprozess voneinander getrennte Initiativen im Variantenmanagement sowie im Simultaneous Engineering. Eine integrierte Betrachtung wurde bisher jedoch noch nicht umgesetzt. Das hier vorgestellte Vorgehen verbindet die externen Anforderungen des Marktes mit der internen Umsetzung auf Produkt- und Fertigungsebene, um ein konsistentes System bestehend aus der Produktstruktur und dem Fertigungssystem zur Herstellung von Varianten zu ermöglichen.

Diffner, E, Beck, D, Gudgin, E, Thoms, JAI, Knezevic, K, Pridans, C, Foster, S, Goode, D, Lim, WK, Boelen, L, Metzeler, KH, Micklem, G, Bohlander, SK, Buske, C, Burnett, A, Ottersbach, K, Vassiliou, GS, Olivier, J, Wong, JWH, Göttgens, B, Huntly, BJ & Pimanda, JE 2013, 'Activity of a heptad of transcription factors is associated with stem cell programs and clinical outcome in acute myeloid leukemia', Blood, vol. 121, no. 12, pp. 2289-2300.
View/Download from: Publisher's site
View description>>

Key Points The ERG stem cell enhancer is active in acute myeloid leukemia and is regulated by a heptad of transcription factors. Expression signatures derived from ERG promoter–enhancer activity and heptad expression are associated with clinical outcome.

Ding, G 2013, 'Demolish or refurbish – Environmental benefits of housing conservation', Construction Economics and Building, vol. 13, no. 2, pp. 18-34.
View/Download from: Publisher's site
View description>>

Climate change and energy efficiency are some of the most pressing issues facing China today. With its economic growth since 1978, the government has struggled to contain environmental damages and social unrest related to the economy’s rapid transformation. With the rapid growth in population and urbanization the demand for housing has escalated and traditional housing has been under threat of demolition to make way for new construction. Traditional housing is generally considered wasteful in its use of land and/or energy, and is often demolished for more intensive and more energy-efficient housing, despite the resulting loss of embodied energy and urban amenity. A research project was undertaken to study the environmental performance of traditional housing in Hangzhou. The project looks into analyzing and comparing embodied energy and CO2 for seven dwellings. In addition indoor climate data were recorded and collected in the form of hourly temperature and humidity readings for one year in six local houses and in a modern unit as a control for one year. The research results reveal that there is little difference in environmental performance between traditional and conventional modern construction and the value of conservation rather than demolition as a strategic development for the construction industry.

Ding, G & Forsythe, PJ 2013, 'Sustainable construction: life cycle energy analysis of construction on sloping sites for residential buildings', Construction Management and Economics, vol. 31, no. 3, pp. 254-265.
View/Download from: Publisher's site
View description>>

In 2010, the Australian residential construction sector contributed about 28% of the value of all construction and was responsible for 8% of the total energy consumption. Residential construction will continue to increase to cope with the demand due to population growth. Owing to land scarcity, construction on sloping sites has become a common construction method for residential development in Australia. This method has economic benefits but poses environmental issues as it damages topsoil, disturbs natural drainage and groundwater pathways and imposes additional stress on soil under fill. The life cycle energy consumption of the construction process is examined in relation to residential projects on sloping sites on a range of slopes and soil types in New South Wales, Australia. Forty-one detached dwellings were selected and a service life of 60 years assumed for the study. The research findings reveal that the slope for each type of soil has a positive correlation with life cycle energy consumption. As part of the onsite construction process, the results also show that the energy consumption of construction on sloping sites plays a significant factor in the life cycle energy analysis of a building. © 2013 Copyright Taylor and Francis Group, LLC.

Dinh, HT, Lee, C, Niyato, D & Wang, P 2013, 'A survey of mobile cloud computing: architecture, applications, and approaches', Wireless Communications and Mobile Computing, vol. 13, no. 18, pp. 1587-1611.
View/Download from: Publisher's site
View description>>

ABSTRACTTogether with an explosive growth of the mobile applications and emerging of cloud computing concept, mobile cloud computing (MCC) has been introduced to be a potential technology for mobile services. MCC integrates the cloud computing into the mobile environment and overcomes obstacles related to the performance (e.g., battery life, storage, and bandwidth), environment (e.g., heterogeneity, scalability, and availability), and security (e.g., reliability and privacy) discussed in mobile computing. This paper gives a survey of MCC, which helps general readers have an overview of the MCC including the definition, architecture, and applications. The issues, existing solutions, and approaches are presented. In addition, the future research directions of MCC are discussed. Copyright © 2011 John Wiley & Sons, Ltd.

Diyaljee, V 2013, 'Discussion of “Stress-Strain Degradation Response of Railway Ballast Stabilized with Geosynthetics” by Buddhima Indraratna and Sanjay Nimbalkar', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 12, pp. 2232-2233.
View/Download from: Publisher's site

Do, QNT & Hussain, FK 2013, 'A hybrid approach for the personalisation of cloud-based e-governance services', International Journal of High Performance Computing and Networking, vol. 7, no. 3, pp. 205-205.
View/Download from: Publisher's site
View description>>

Cloud computing is a new and promising paradigm for service delivery including computing resources over the internet. Cloud computing standards and architecture play an important role in benefiting governments by reducing operating costs and increasing governance effectiveness. Cloud-based e-governance contributes to managing security, reducing cost based on a pay-as-you-go method, IT labour cost reduction, and increasing scalability. Given the importance of cloud computing in the today's emerging technologies, personalisation in cloud computing is also significant in supporting users to obtain what they need without being required to request it explicitly. This research will focus mainly on a personalisation algorithm to for cloud computing. A case study in which a user can suggest the language they want to use without making an explicit request will be provided to assist further understanding of the new algorithm, which is a combination of the TOPSIS and Pearson correlation coefficient methods.

Dom, NC, Ahmad, AH, Latif, ZA, Ismail, R & Pradhan, B 2013, 'Coupling of remote sensing data and environmental-related parameters for dengue transmission risk assessment in Subang Jaya, Malaysia', Geocarto International, vol. 28, no. 3, pp. 258-272.
View/Download from: Publisher's site

Dong, D, Chen, C, Jiang, M & Wang, L-C 2013, 'Quantum Control and Quantum Information Technology', The Scientific World Journal, vol. 2013, no. 1.
View/Download from: Publisher's site

Dong, D, Petersen, IR & Rabitz, H 2013, 'Sampled-Data Design for Robust Control of a Single Qubit', IEEE Transactions on Automatic Control, vol. 58, no. 10, pp. 2654-2659.
View/Download from: Publisher's site

Dong, H & Hussain, FK 2013, 'SOF: a semi-supervised ontology-learning-based focused crawler', CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE, vol. 25, no. 12, pp. 1755-1770.
View/Download from: Publisher's site
View description>>

The rapid increase in the volume of data available on the Internet makes it increasingly impractical for a crawler to index the whole Web. Instead, many intelligent crawlers, known as ontology-based semantic focused crawlers, have been designed by making use of Semantic Web technologies for topic-centered Web information crawling. Ontologies, however, have constraints of validity and time, which may influence the performance of the crawlers. Ontology-learning-based focused crawlers are therefore designed to automatically evolve ontologies by integrating ontology learning technologies. Nevertheless, surveys indicate that the existing ontology-learning-based focused crawlers do not have the capability to automatically enrich the content of ontologies, which makes these crawlers unreliable in the open and heterogeneous Web environment. Hence, in this paper, we propose a framework for a novel semi-supervised ontology-learning-based focused (SOF) crawler, the SOF crawler, which embodies a series of schemas for ontology generation and Web information formatting, a semi-supervised ontology learning framework, and a hybrid Web page classification approach aggregated by a group of support vector machine models. A series of tests are implemented to evaluate the technical feasibility of this proposed framework. The conclusion and the future work are summarized in the final section

Dong, H, Hussain, FK & Chang, E 2013, 'Semantic Web Service matchmakers: state of the art andchallenges', CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE, vol. 25, no. 7, pp. 961-988.
View/Download from: Publisher's site
View description>>

Web services provide a standard means for the interoperable operations between electronic devices in a network. The mission of Web service discovery is to seek an appropriate Web service for a service requester on the basis of the service descriptions in Web service advertisements and the service requesterâs requirements. Nevertheless, the standard language used for encoding service descriptions does not have the capacity to specify the capabilities of a Web service, leading to the problem of ambiguity in the service discovery process. This brings up the vision of SemanticWeb Services and SemanticWeb Service discovery, which make use of the SemanticWeb technologies to enrich the semantics of service descriptions for service discovery. Semantic Web Service matchmakers are the programs or frameworks designed to implement the task of Semantic Web Service discovery and have drawn a significant amount of attention from both academia and industry from the start of this century. In this paper, we conduct a survey of the contemporary Semantic Web Service matchmakers in order to obtain an overview of the state of the art in this research area. We summarize six technical dimensions from the past literature and analyze the typical Semantic Web Service matchmakers mostly developed during the past 4 or 5 years in terms of the six dimensions. By means of this analysis, we gain an understanding of the current research and summarize a series of potential issues to that would provide the foundation for future research in this area. Copyright © 2012 John Wiley & Sons, Ltd

Dong, X, Liu, E, Yang, J & Wu, Q 2013, 'MEGH: A New Affine Invariant Descriptor', KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, vol. 7, no. 7, pp. 1690-1704.
View/Download from: Publisher's site
View description>>

An affine invariant descriptor is proposed, which is able to well represent the affine covariant regions. Estimating main orientation is still problematic in many existing method, such as SIFT (scale invariant feature transform) and SURF (speeded up robust features). Instead of aligning the estimated main orientation, in this paper ellipse orientation is directly used. According to ellipse orientation, affine covariant regions are firstly divided into 4 sub-regions with equal angles. Since affine covariant regions are divided from the ellipse orientation, the divided sub-regions are rotation invariant regardless the rotation, if any, of ellipse. Meanwhile, the affine covariant regions are normalized into a circular region. In the end, the gradients of pixels in the circular region are calculated and the partition-based descriptor is created by using the gradients. Compared with the existing descriptors including MROGH, SIFT, GLOH, PCA-SIFT and spin images, the proposed descriptor demonstrates superior performance according to extensive experiments. © 2013 KSII.

Dong, Y, Zhang, G, Hong, W-C & Yu, S 2013, 'Linguistic Computational Model Based on 2-Tuples and Intervals', IEEE Transactions on Fuzzy Systems, vol. 21, no. 6, pp. 1006-1018.
View/Download from: Publisher's site

Dragos, J & Wu, C 2013, 'A new general approach to derive normalised pressure impulse curves', International Journal of Impact Engineering, vol. 62, pp. 1-12.
View/Download from: Publisher's site

Dragos, J, Wu, C & Oehlers, DJ 2013, 'Simplification of fully confined blasts for structural response analysis', Engineering Structures, vol. 56, pp. 312-326.
View/Download from: Publisher's site

Dragos, J, Wu, C & Vugts, K 2013, 'Pressure-Impulse Diagrams for an Elastic-Plastic Member under Confined Blasts', International Journal of Protective Structures, vol. 4, no. 2, pp. 143-162.
View/Download from: Publisher's site
View description>>

Pressure-impulse (P-I) diagrams based on the equivalent single-degree-of-freedom approach (SDOF) have been used during building design in order to assess the effects of blasts on structures. They provide an easy way to describe the likely outcome of the combination of blast pressures and impulses on a particular structural element in a building at the moment an explosion occurs. However, only P-I diagrams of structural members under external blasts have been addressed in current guidelines and previous studies. Due to the complexity of confined scenarios, confined blast pressure-time histories cannot be approximated by simplified representations of pressure-time histories used for external blasts, such as triangular shapes representing linear decay or curves indicating exponential decay. Rather, they should be simplified as bilinear pressure-time histories. Thus, SDOF models which incorporate bilinear blast loads were developed to predict the response of a member with a bilinear, elastic-plastic-hardening, resistance-deflection function. Then using the developed SDOF model, normalised P-I Diagrams for structural members with bilinear resistance-deflection functions under bilinear blasts were generated. These results were then used to undertake a parametric study to investigate the influence of varying blast load shapes and varying bilinear resistance-deflection function shapes on the normalised P-I curves. Also, comparisons against other techniques employed to eliminate pulse load shape effects were also undertaken for bilinear pulse loads and bilinear resistance-deflection function shapes.

Dragos, J, Wu, C, Haskett, M & Oehlers, D 2013, 'Derivation of Normalized Pressure Impulse Curves for Flexural Ultra High Performance Concrete Slabs', Journal of Structural Engineering, vol. 139, no. 6, pp. 875-885.
View/Download from: Publisher's site

Du, J, Zhang, T, Guo, YJ & Sun, XW 2013, 'A high-temperature superconducting monolithic microwave integrated Josephson down-converter with high conversion efficiency', Applied Physics Letters, vol. 102, no. 21, pp. 212602-212602.
View/Download from: Publisher's site
View description>>

A compact high-Tc superconducting monolithic microwave integrated circuit Josephson down-converter is presented. The circuit consists of a single Josephson junction mixer, a bandpass filter, a lowpass filter, and a resonator for local oscillator fabricated on a single 10 mm × 20 mm chip of YBa2Cu3O7−x film on MgO substrate. The down-converter demonstrates superior performance in terms of conversion efficiency, dynamic range, linearity, and low local oscillator power with stable operation from 20 to 77 K. A maximum conversion gain of −4.7 dB was measured at 20 K and −12.8 dB at 70 K.

Du, R, Wu, Q, He, X & Yang, J 2013, 'MIL-SKDE: Multiple-instance learning with supervised kernel density estimation', Signal Processing, vol. 93, no. 6, pp. 1471-1484.
View/Download from: Publisher's site
View description>>

Multiple-instance learning (MIL) is a variation on supervised learning. Instead of receiving a set of labeled instances, the learner receives a set of bags that are labeled. Each bag contains many instances. The aim of MIL is to classify new bags or instances. In this work, we propose a novel algorithm, MIL-SKDE (multiple-instance learning with supervised kernel density estimation), which addresses MIL problem through an extended framework of KDE (kernel density estimation)+mean shift. Since the KDE+mean shift framework is an unsupervised learning method, we extend KDE to its supervised version, called supervised KDE (SKDE), by considering class labels of samples. To seek the modes (local maxima) of SKDE, we also extend mean shift to a supervised version by taking into account sample labels. SKDE is an alternative of the well-known diverse density estimation (DDE) whose modes are called concepts. Comparing to DDE, SKDE is more convenient to learn multi-modal concepts and robust to labeling noise (mistakenly labeled bags). Finally, each bag is mapped into a concept space where the multi-class SVM classifiers are learned. Experimental results demonstrate that our approach outperforms the state-of-the-art MIL approaches. © 2012 Elsevier B.V.

Du, X, Shi, B, Liang, J, Bi, J, Dai, S & Qiao, SZ 2013, 'Developing Functionalized Dendrimer‐Like Silica Nanoparticles with Hierarchical Pores as Advanced Delivery Nanocarriers', Advanced Materials, vol. 25, no. 41, pp. 5981-5985.
View/Download from: Publisher's site

Du, Y, Lu, DD-C, James, G & Cornforth, DJ 2013, 'Modeling and analysis of current harmonic distortion from grid connected PV inverters under different operating conditions', Solar Energy, vol. 94, pp. 182-194.
View/Download from: Publisher's site

Du, ZS & Watterson, PA 2013, 'Design and implementation of a radial magnetic bearing with permanent magnet bias', Australian Journal of Electrical & Electronics Engineering, vol. 10, no. 2, pp. 167-174.
View/Download from: Publisher's site
View description>>

A new yoke winding for a radial magnetic bearing with permanent magnet bias fl ux is investigated and shown to reduce the copper loss and copper cost, by 32% in the prototype built. Magnetic circuit analysis neglecting fringing was found to give a poor estimate of the permanent magnet bias fl ux and 3D fi nite element analysis (FEA) would be needed to model it. However, 2D FEA was suffi cient to model the magnetic fi eld and force in the plane of the stator laminations, providing that the correct bias fl ux was imposed as a boundary condition. Solutions for the axial magnetic vector potential component Az were obtained, with a discontinuity prescribed across a cut from the inner to outer domain boundary. A small prototype was built and tested on a shaft whose other end was supported by a ball bearing race with free angular movement. For each of the horizontal and vertical directions, closed loop control was applied with Hall elements providing the shaft position signal. A lead-lag controller, designed using Matlab Simulink and implemented in Turbo Pascal 6, levitated the rotor

Duc, H, Azzi, M, Wahid, H & Ha, QP 2013, 'Background ozone level in the Sydney basin: assessment and trend analysis', INTERNATIONAL JOURNAL OF CLIMATOLOGY, vol. 33, no. 10, pp. 2298-2308.
View/Download from: Publisher's site
View description>>

It has been recognized that the background ozone concentration in urban areas is changing over the years. This article aims to determine the background ozone level (BOL) using ambient air quality data measurements collected at some monitoring stations in the Sydney basin, Australia. A definition of background ozone in the context of the Sydney region is proposed. With this definition, it is possible to estimate the background ozone using ambient measurements of ozone and its precursors. The trend of the BOL is also estimated from the temporal ambient monitoring records as of early 1998-2005. These ozone level changes at different monitoring stations are assessed using the linear regression method. The results are shown to vary between different monitoring sites. This demonstrates that the local conditions at each site are important in determining as to whether an air quality management plan for reducing the ozone level to below the exceedance level is effective and achievable or not. Furthermore, the results obtained are compared with those obtained by the ClappJenkin method, which is based on the relationship between oxidant and nitrogen oxides, assuming a stationary state of photochemical smog function.

Düntsch, I & Li, S 2013, 'On the homogeneous countable Boolean contact algebra', Logic and Logical Philosophy, vol. 22, no. 2, pp. 213-251.
View/Download from: Publisher's site
View description>>

In a recent paper, we have shown that the class of Boolean contact algebras (BCAs) has the hereditary property, the joint embedding property and the amalgamation property. By Fraïssé's theorem, this shows that there is a unique countable homogeneous BCA. This paper investigates this algebra and the relation algebra generated by its contact relation. We first show that the algebra can be partitioned into four sets {0}, {1}, K, and L, which are the only orbits of the group of base automorphisms of the algebra, and then show that the contact relation algebra of this algebra is finite, which is the first non-trivial extensional BCA we know which has this property. © Nicolaus Copernicus University (Toruń) 2013.

Dzeng, R-J, Lin, C-T & Hsiao, F-Y 2013, 'An Integrated Model for Simulating Activities and Optimizing Space Function in Educational Facility', International Journal of Information and Education Technology, vol. 3, no. 6, pp. 582-586.
View/Download from: Publisher's site
View description>>

Determining the function for each space in a building plays an important role for assessing the service level of an educational facility. The function layout affects how users move between spaces during their participation of activities in the facility. This research describes the integration of an activity-based simulation model and a space-function assignment optimization model with six phases, including data collection, data preparation, data mining, optimization, verification, and refinement. The paper also uses a real case to demonstrate the use of the proposed model, and has shown a 4.96% improvement on the objective value compared to the contracted architect’s original plan.

Eager, DB, Scarrott, C, Nixon, J & Alexander, K 2013, 'Injury survey of a non-traditional 'soft-edged' trampoline designed to lower equipment hazards', INTERNATIONAL JOURNAL OF INJURY CONTROL AND SAFETY PROMOTION, vol. 20, no. 1, pp. 42-49.
View/Download from: Publisher's site
View description>>

In Australia trampolines contribute one quarter of all childhood play equipment injuries. The objective of this study was to gather and evaluate injury data from a non-traditional, 'soft-edged', consumer trampoline, where the design aimed to minimise injuries from the equipment and from falling off. The manufacturer of the non-traditional trampoline provided the University of Technology Sydney with their Australian customer database. The study involved surveys in Queensland and New South Wales, between May 2007 and March 2010. Initially injury data was gathered by a phone interview pilot study, then in the full study, through an email survey. The 3817 respondents were the carers of child users of the 'soft-edge' trampolines. Responses were compared with Australian and US emergency department data. In both countries the proportion of injuries caused by the equipment and falling off was compared with the proportion caused by the jumpers to themselves or each other. The comparisons showed a significantly lower proportion resulted from falling-off or hitting the equipment for this design when compared to traditional trampolines, both in Australia and the US. This research concludes that equipment-induced and falling-off injuries, the more severe injuries on traditional trampolines, can be significantly reduced with appropriate trampoline design. © 2013 Copyright Taylor and Francis Group, LLC.

El Saliby, I, Erdei, L, Kim, J-H & Shon, HK 2013, 'Adsorption and photocatalytic degradation of methylene blue over hydrogen-titanate nanofibres produced by a peroxide method', WATER RESEARCH, vol. 47, no. 12, pp. 4115-4125.
View/Download from: Publisher's site
View description>>

In this study, Degussa P25 TiO2 was partially dissolved in a mixture of hydrogen peroxide and sodium hydroxide at high pH. The fabrication of nanofibres proceeded by the hydrothermal treatment of the solution at 80 C. This was followed by acid wash in HCl at pH 2 for 60 min, which resulted in the formation of hydrogenetitanate nanofibres. The nanofibres were annealed at 550 C for 6 h to produce crystalline anatase nanofibres. The nanofibres were characterised for physico-chemical modifications and tested for the adsorption and photocatalytic degradation of methylene blue as a model water pollutant. An average specific surface area of 31.54 m2/g, average pore volume of 0.10 cm3/g and average pore size of 50 A were recorded. The nanofibres were effective adsorbents of the model pollutant and adsorbents and good photocatalysts under simulated solar light illumination. No reduction in photocatalytic activity was observed over three complete treatment cycles, and the effective separation of nanofibres was achieved by gravity settling resulting in low residual solution turbidity.

Elsener, R, Dackermann, U, Li, J, Samali, B & Crews, K 2013, 'Experimental Investigations of Material Properties of Timber Utility Poles using various Material Testing Approaches', STRUCTURAL HEALTH ASSESSMENT OF TIMBER STRUCTURES, vol. 778, pp. 265-272.
View/Download from: Publisher's site

Emaus, N, Nguyen, ND, Almaas, B, Berntsen, GK, Center, JR, Christensen, M, Gjesdal, CG, Grimsgaard, AS, Nguyen, TV, Salomonsen, L, Eisman, JA & Fønnebø, VM 2013, 'Serum level of under-carboxylated osteocalcin and bone mineral density in early menopausal Norwegian women', European Journal of Nutrition, vol. 52, no. 1, pp. 49-55.
View/Download from: Publisher's site
View description>>

Serum level of under-carboxylated osteocalcin (ucOC) is considered a sensitive measure of vitamin K status, and ucOC levels are associated with bone mineral density (BMD) and fracture risk in elderly persons. The aim of this study was to assess the relationship between ucOC and BMD in early menopausal women. The data reported here come from the enrolment in a double-blinded placebo-controlled randomized trial comprising 334 healthy Norwegian women between 50 and 60 years, 1-5 years after menopause, not using warfarin or medication known to affect bone metabolism. Total hip, femoral neck, lumbar spine, and total body BMD and serum level of ucOC and total osteocalcin were measured, and information of lifestyle was collected through questionnaires. The association between ucOC and BMD at all measurement sites was assessed by multiple regression analyses adjusting for possible confounding variables. The absolute serum level of ucOC was significantly and negatively associated with BMD at all measurements sites, both in univariate analyses (p < 0.01) and in multivariate analyses adjusting for years since menopause, smoking status and weight (p < 0.01). However, serum ucOC, expressed as percentage of the total osteocalcin level, was not associated with BMD at any site. Achievement of adequate vitamin K nutritional intake is important, but ucOC expressed as percentage of total osteocalcin levels as reflection of vitamin K status does not seem to play a central role in determining BMD levels in early menopausal women.

Esfijani, A, Hussain, FK & Chang, E 2013, 'University social responsibility ontology', Engineering Intelligent Systems, vol. 21, no. 4, pp. 271-281.
View description>>

This paper draws on the existing body of knowledge to develop an ontology for university social responsibility (USR). There are numerous terms and definitions for USR in the existing literature. However, there is no consensus among them. In order to address this issue, we used a semi-automated text mining approach for ontology engineering. The developed ontology covered USR and its associated terms by which social responsibilities of a university to its communities have been described in the existing literature. The developed ontology, which is an explicit specification of USR concept, its components and their relationships, can contribute to develop a unified understanding of the concept for measurement purposes. © 2013 CRL Publishing Ltd.

Fachrunnisa, O & Hussain, FK 2013, 'A Methodology for Maintaining Trust in Industrial Digital Ecosystems', IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 60, no. 3, pp. 1042-1058.
View/Download from: Publisher's site
View description>>

Trust is widely considered to be essential for the smooth functioning of digital ecosystems. However, trust by its very nature, and due to the virtual connection between entities, is extremely fragile. Trust has a life cycle which is composed of building, maintaining, and declining. Given the fragility of trust in virtual environments, it is challenging to work out how to maintain the level of trust (specifically positive trust) between two interacting parties. Once positive trust has been established in the trust building phase, a methodological framework is needed to maintain the existing trust level, so that the relationship may be sustained in the future. In this paper, we present a methodology for maintaining trust in industrial digital ecosystems. The methodology proposes the use of a third party agent, an iterative negotiation process, proactive performance monitoring, and intelligence metrics recalibration of the trust level. In a trust-based relationship, trust can be regarded as having been maintained if the final trust is greater than or equal to initial trust. We demonstrate the validity of the methodology by engineering a prototype setup and running simulations under various operational conditions.

Fam, W, Phuntsho, S, Lee, JH & Shon, HK 2013, 'Performance comparison of thin-film composite forward osmosis membranes', DESALINATION AND WATER TREATMENT, vol. 51, no. 31-33, pp. 6274-6280.
View/Download from: Publisher's site
View description>>

Forward osmosis (FO) is an emerging low-energy technology. Much effort was given on developing a new membrane material and engineering membrane structure to improve the performance of FO membranes. The performances of two newly developed polyamide-based thin-film composite (TFC) FO membranes were tested and compared with the commercially available cellulose triacetate (CTA) FO membrane. The intrinsic properties of the two TFC FO membranes determined in RO experiments indicate superior performance of the membranes. When tested in FO experiments, TFC membranes delivered consistent results, confirming their outstanding permeability and selectivity properties. The study shows that future studies on membrane fouling will be necessary to have a better understanding of membrane performance and to further optimize membrane properties. © 2013 Copyright Balaban Desalination Publications.

Fan, J, Wang, W, Zhang, B, Guo, Y, Ngo, HH, Guo, W, Zhang, J & Wu, H 2013, 'Nitrogen removal in intermittently aerated vertical flow constructed wetlands: Impact of influent COD/N ratios', BIORESOURCE TECHNOLOGY, vol. 143, no. 1, pp. 461-466.
View/Download from: Publisher's site
View description>>

The performance response of eight vertical flow constructed wetlands (VFCWs) to different influent COD/N ratios and intermittent aeration in domestic wastewater treatment was investigated. Almost complete nitrification was obtained by intermittent aeration, which well developed alternate anaerobic and aerobic conditions for nitrification and denitrification. Sufficient carbon source supply resulted from influent COD/N ratio of 10 simultaneously obtained high removals of COD (96%), ammonia nitrogen (99%) and total nitrogen (90%) in intermittently aerated VFCWs. In all non-aerated VFCWs, poor nitrification was observed due to oxygen deficiency whilst high COD/N ratios further led to lower COD and nitrogen removal efficiency. The results suggest that intermittent aeration combined with high influent COD/N ratios could achieve high nitrogen removal in VFCWs.

Fan, J, Zhang, B, Zhang, J, Ngo, HH, Guo, W, Liu, F, Guo, Y & Wu, H 2013, 'Intermittent aeration strategy to enhance organics and nitrogen removal in subsurface flow constructed wetlands', BIORESOURCE TECHNOLOGY, vol. 141, no. 1, pp. 117-122.
View/Download from: Publisher's site
View description>>

In this study, an intermittent-aerated subsurface flow constructed wetland (SFCW) A was set up to assess its performance in decentralized rural sewage treatment. A conventional SFCW B and a subsurface wastewater infiltration system (SWIS C) were also constructed for comparison. Alternate anaerobic and aerobic conditions were well developed by intermittent aeration. High removal of organic pollutants (29.3 g m-2 d-1), ammonium nitrogen (3.5 g m-2 d-1) and total nitrogen (3.3 g m-2 d-1) were obtained simultaneously in SFCW A compared with SFCW B and SWIS C. Fluorescence in situ hybridization analysis proved that the intermittent aeration obviously enhanced the growth of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in SFCW A. These results suggest that intermittent aeration strategy is reliable to enhance the performance of SFCWs in decentralized rural sewage treatment.

Fang, J, Gao, Y, Sun, G & Li, Q 2013, 'Multiobjective reliability-based optimization for design of a vehicledoor', Finite Elements in Analysis and Design, vol. 67, pp. 13-21.
View/Download from: Publisher's site

Fatahi, B 2013, 'PREDICTING SETTLEMENT OF CHEMICALLY STABILISED LANDFILLS', International Journal of Geomate, vol. 5, no. 2, pp. 700-705.
View/Download from: Publisher's site
View description>>

This paper presents the findings of numerical analyses to predict the vertical and horizontal displacements of closed landfills under surcharge load with and without treatment by chemical admixtures. The finite element program, PLAXIS, has been used to evaluate the settlement of a landfill model. The soft soil creep model is used for this analysis. Five layers of solid waste are considered for the landfill to evaluate the effect of depth of stabilisation on settlement of landfill model. Treated and untreated municipal solid waste (MSW) parameters are obtained from the results of an extensive laboratory program performed on MSW samples in this research. The settlement of the landfill model 10 and 20 years after applying the surcharge load for different fly ash-quicklime contents and various depths of improvement is estimated. Results indicate that treatment of MSW reduces the vertical displacement of the landfill model under surcharge load significantly. This reduction is more with higher depths of improvement. The finite element results have been validated based on results of triaxial tests conducted in the laboratory on the treated municipal solid waste. © 2013, International Journal of GEOMATE.

Fatahi, B & Khabbaz, H 2013, 'Influence of fly ash and quicklime addition on behaviour of municipal solid wastes', JOURNAL OF SOILS AND SEDIMENTS, vol. 13, no. 7, pp. 1201-1212.
View/Download from: Publisher's site
View description>>

Purpose: Many closed municipal solid waste landfill sites are near urban areas and there are high expectations to improve geotechnical properties of these sites for re-development. Construction on closed landfill sites is generally a challenging task due to complex behaviour of creep, settlement, high amount of moisture content and weak shear strength of waste. This study presents the experimental results for the use of fly ash and quicklime in improvement of the geotechnical properties of municipal solid wastes (MSW). Materials and methods: The waste materials were collected from a closed landfill in the southwest of Sydney. The samples were prepared by integrating MSW with a mixture of fly ash-quicklime with a ratio of 3:1 in percentages of 5, 10, 15 and 20 of fly ash by dry weight of the MSW. An array of experimental tests has been conducted on treated and untreated MSW samples including sieve analysis, Atterberg limits, compaction and consolidated-drained triaxial tests. Results and discussion: Results of this investigation showed a significant improvement in geotechnical properties of MSW. It has been found that by increasing fly ash-quicklime admixtures from 0 to 26.7 % (0 to 20 % fly ash), the internal friction angle increased from 29 to 39° and the cohesion intercept increased from 11 to 30 kPa. Under an effective confining pressure of 300 kPa, the peak strength, the brittleness index and the Young's modulus at failure increased from 600 to 1,150 kPa, 0.13 to 0.35 and 5.5 MPa to 28 MPa, by addition of 26.7 % fly ash-quicklime admixture, respectively. Moreover, the compression and the secondary compression indices decreased from 0.33 to 0.23 and 0.052 to 0.033, respectively. Conclusions: It is found that the chemical stabilisation effectively increases the compressive strength, the shear strength parameters, the stiffness and the brittleness index whilst decreases the settlement of the MSW layer. It will be beneficial and effective in re-developm...

Fatahi, B & Khabbaz, H 2013, 'Optimising the pattern of semi-rigid columns to improve performance of rail tracks overlying soft soil formation', Australian Geomechanics Journal, vol. 48, no. 3, pp. 89-97.
View description>>

With Australia facing a rapid increase in population in the next 30 years, the government is being proactive in handling the forecasted growth. The release of 2010 Metropolitan Transport Plan by the New South Wales (NSW) Government shows that the State of NSW will see an increase in commuter travel by rail. The NSW rail system is one of the most complex networks in the world and due to population growth, the network will require further expansion with construction of new railway lines partly on weak and marginal ground and will also require more frequent train running on existing lines. This study seeks to identify the effectiveness of semi-rigid inclusion ground improvement techniques particularly stone columns and deep soil mixing in controlling settlement of soft soils when placed under the dead loads of the rail structure and the large live loads of freight trains. The employed numerical study assesses the relationship between the column position in the track cross section and the overall settlement of the ballasted rail formation. The numerical results show that the overall settlement of the track reduces significantly with the use of columns close to the centre of the track and not just under the rail. In addition, application of one layer of geogrids between sub-ballast and sub-grade assists to reduce the maximum settlement of track decreasing the future maintenance costs.

Fatahi, B & Khabbaz, H 2013, 'PREDICTING SETTLEMENT OF CHEMICALLY STABILISED LANDFILLS', INTERNATIONAL JOURNAL OF GEOMATE, vol. 5, no. 10, pp. 700-705.

Fatahi, B, Fatahi, B, Le, TM & Khabbaz, H 2013, 'Small-strain properties of soft clay treated with fibre and cement', GEOSYNTHETICS INTERNATIONAL, vol. 20, no. 4, pp. 286-300.
View/Download from: Publisher's site
View description>>

To improve the dynamic properties of soft soil, the cement treatment technique combined with fibre reinforcement can be employed. In this study, the effects of two types of fibres (polypropylene and recycled carpet) on the hardening process and small-strain properties of cement-treated kaolinite and bentonite clays are investigated. Cement-treated clay specimens were prepared using cement contents of 5%, 10% and 15% by weight of dry soil for the kaolinite samples, and 30%, 40% and 50% for the bentonite samples. To investigate and understand the influence of different fibre types and contents, three different percentages of fibre content were adopted: 0.1%, 0.2% and 0.5% polypropylene fibres, and 0.5%, 0.75% and 1% carpet fibres. The results of bender element tests on 126 cylindrical samples of cement-treated clay with various cement and fibre contents were analysed to discern the relationships between fibre and cement content and the small-strain mechanical properties, including the shear wave velocity and maximum small-strain shear modulus of the treated soil. The influence of fibres and cement contents on the hardening time of treated soil has also been investigated. © 2013 Thomas Telford Ltd.

Fatahi, B, Le, TM, Fatahi, B & Khabbaz, H 2013, 'Shrinkage Properties of Soft Clay Treated with Cement and Geofibers', Geotechnical and Geological Engineering, vol. 31, no. 5, pp. 1421-1435.
View/Download from: Publisher's site
View description>>

In this study, effects of two types of geofibers, namely polypropylene and recycled carpet, on three dimensional shrinkage properties of cement treated kaolinite and bentonite clays are investigated. Cement treated clay specimens were prepared with cement contents of 5, 10, and 15 % by weight of dry soil for kaolinite samples, and 30, 40 and 50 % for bentonite samples. To investigate and understand the influence of different fiber types and contents, three different percentages of fiber content (i.e. 0.1, 0.2 and 0.5 % polypropylene fibers; and 0.5, 0.75 and 1 % carpet fibers) were adopted. The results of shrinkage tests on 126 cylindrical samples of cement treated clay with various cement and fiber contents were analysed to understand the relationships between these parameters and the shrinkage percentage of treated soil. Results of this study indicate that combination of cement and fiber is effective in reducing the volume change of clayey soils undergoing drying process. In the applied ranges of cement and fiber contents, the influence of cement addition on the shrinkage reduction is more significant than the addition of fibers for the treated kaolinite. However, addition of fibers in curtailing the shrinkage of bentonite clay is more significant than the cement addition. © 2013 Springer Science+Business Media Dordrecht.

Fatahi, B, Le, TM, Le, MQ & Khabbaz, H 2013, 'Soil creep effects on ground lateral deformation and pore water pressure under embankments', Geomechanics and Geoengineering, vol. 8, no. 2, pp. 107-124.
View/Download from: Publisher's site
View description>>

Analysing the behaviour of the soft ground under embankments is a challenging task and is of significant interest to practising geotechnical engineers. This paper revisits a well known case study of an embankment of Boston Blue Clay, which was thoroughly instrumented and measured with piezometers, settlement rods and inclinometers over a long time period during and after construction. The soil parameters were very comprehensively collected by both in situ and laboratory tests in several major test programs. The behaviour of the ground considering the modified Cam-Clay model including and excluding soil creep is simulated using finite element method. The analysed data are verified with field measurements and a parametric study is conducted to evaluate the influence of creep index on excess pore water pressures generated and the displacement of the ground under the embankment. It is observed that both horizontal displacements and excess pore water pressures of the ground under the embankment increased by the creep index. Thus effects of soil creep should be precisely considered in predicting the ground performance under embankments. © 2013 Copyright Taylor and Francis Group, LLC.

Fauzi, H, Metselaar, HSC, Mahlia, TMI, Silakhori, M & Nur, H 2013, 'Phase change material: Optimizing the thermal properties and thermal conductivity of myristic acid/palmitic acid eutectic mixture with acid-based surfactants', Applied Thermal Engineering, vol. 60, no. 1-2, pp. 261-265.
View/Download from: Publisher's site

Fazal, A, Hussain, FK & Dillon, TS 2013, 'An innovative approach for automatically grading spelling in essays using rubric-based scoring', JOURNAL OF COMPUTER AND SYSTEM SCIENCES, vol. 79, no. 7, pp. 1040-1056.
View/Download from: Publisher's site
View description>>

Automated Essay Grading (AEG) is defined as a computer technology that evaluates and scores written prose. A number of AEG systems have been developed since the 1960s and in most of them, an ad-hoc or generalized approach is used to grade spelling even though it is an important element of an essay-scoring rubric. Existing approaches do not therefore give an accurate representation or measure of spelling in essays. According to the rubric-based scoring method used in the National Assessment Program Literacy and Numeracy (NAPLAN) in Australia, spelling is marked in three steps first, by identifying the correct and incorrect words in the essay; second, by categorizing each word based on the difficulty level into one of four classes: Simple, Common, Difficult or Challenging, and counting the number of correct and incorrect words in each category; finally, by using the pre-defined NAPLAN rubric scale to assign the mark. Only a small number of existing AEG systems can be used for rubric-based scoring, and none can be used to grade spelling according to the NAPLAN rubric. In this paper, we address this shortcoming in the existing literature and present an innovative approach to automatically mark spelling using rubric based scoring. We develop two algorithms based on the rules and heuristics of the English language to formulize the rubric for spelling and then implement these algorithms in Java language and perform a series of evaluations of our system using an essay dataset. Our results are very promising, even though it is the first system of this kind.

Felder, RM & Hadgraft, RG 2013, 'Educational Practice and Educational Research in Engineering: Partners, Antagonists, or Ships Passing in the Night?', Journal of Engineering Education, vol. 102, no. 3, pp. 339-345.
View/Download from: Publisher's site

Feng, Y, Yu, N & Ying, M 2013, 'Model checking quantum Markov chains', JOURNAL OF COMPUTER AND SYSTEM SCIENCES, vol. 79, no. 7, pp. 1181-1198.
View/Download from: Publisher's site
View description>>

Although security of quantum cryptography is provable based on principles of quantum mechanics, it can be compromised by flaws in the design of quantum protocols. So, it is indispensable to develop techniques for verifying and debugging quantum cryptographic systems. Model-checking has proved to be effective in the verification of classical cryptographic protocols, but an essential difficulty arises when it is applied to quantum systems: the state space of a quantum system is always a continuum even when its dimension is finite. To overcome this difficulty, we introduce a novel notion of quantum Markov chain, especially suited for modelling quantum cryptographic protocols, in which quantum effects are encoded as super-operators labelling transitions, leaving the location information (nodes) being classical. Then we define a quantum extension of probabilistic computation tree logic (PCTL) and develop a model-checking algorithm for quantum Markov chains. © 2013 Elsevier Inc. All rights reserved.

Ferguson, S, Kenny, DT, Mitchell, HF, Ryan, M & Cabrera, D 2013, 'Change in Messa di Voce Characteristics During 3 Years of Classical Singing Training at the Tertiary Level', Journal of Voice, vol. 27, no. 4, pp. 523.e35-523.e48.
View/Download from: Publisher's site
View description>>

A 3-year longitudinal study was conducted to investigate changes in vocal quality as a result of singing training at a tertiary level conservatorium in Australia. Singers performed a messa di voce (MDV) at intervals of 6 months over the 3-year period of training. The study investigated the evolving acoustic features of the singers' voices exhibited during the MDV, including sound pressure level (SPL), short-term energy ratio (STER), duration, and vibrato parameters of the fundamental frequency (F0), SPL, and STER. The maximum SPL exhibited a marginal systematic increase over the training period, but the maximum STER did not systematically change. F0 vibrato extent increased significantly, whereas the extent of SPL and STER vibrato did not change significantly.

Ferrie, C 2013, 'High posterior density ellipsoids of quantum states', New J. Phys., vol. 16, p. 023006.
View/Download from: Publisher's site
View description>>

Regions of quantum states generalize the classical notion of error bars. Highposterior density (HPD) credible regions are the most powerful of regionestimators. However, they are intractably hard to construct in general. Thispaper reports on a numerical approximation to HPD regions for the purpose oftesting a much more computationally and conceptually convenient class ofregions: posterior covariance ellipsoids (PCEs). The PCEs are defined via thecovariance matrix of the posterior probability distribution of states. Here itis shown that PCEs are near optimal for the example of Pauli measurements onmultiple qubits. Moreover, the algorithm is capable of producing accurate PCEregions even when there is uncertainty in the model.

Ferrie, C & Combes, J 2013, 'Weak value amplification is suboptimal for estimation and detection', Phys. Rev. Lett., vol. 112, no. 4, p. 040406.
View/Download from: Publisher's site
View description>>

We show using statistically rigorous arguments that the technique of weakvalue amplification (WVA) does not perform better than standard statisticaltechniques for the tasks of single parameter estimation and signal detection.Specifically we prove that post-selection, a necessary ingredient for WVA,decreases estimation accuracy and, moreover, arranging for anomalously largeweak values is a suboptimal strategy. In doing so, we explicitly provide theoptimal estimator, which in turn allows us to identify the optimal experimentalarrangement to be the one in which all outcomes have equal weak values (all assmall as possible) and the initial state of the meter is the maximal eigenvalueof the square of the system observable. Finally, we give precise quantitativeconditions for when weak measurement (measurements without post-selection oranomalously large weak values) can mitigate the effect of uncharacterizedtechnical noise in estimation.

Ferrie, C & Granade, CE 2013, 'Likelihood-free methods for quantum parameter estimation', Phys. Rev. Lett., vol. 112, no. 13, pp. 130402-5.
View/Download from: Publisher's site
View description>>

In this Letter, we strengthen and extend the connection between simulationand estimation to exploit simulation routines that do not exactly compute theprobability of experimental data, known as the likelihood function. Rather, weprovide an explicit algorithm for estimating parameters of physical modelsgiven access to a simulator which is only capable of producing sample outcomes.Since our algorithm does not require that a simulator be able to efficientlycompute exact probabilities, it is able to exponentially outperform standardalgorithms based on exact computation. In this way, our algorithm opens thedoor for the application of new insights and resources to the problem ofcharacterizing large quantum systems, which is exponentially intractable usingstandard simulation resources.

Fis, AM & Çetindamar, D 2013, 'Start-Up Information Search Practices: The Case of Turkey', Emerging Markets Finance and Trade, vol. 49, no. 6, pp. 22-36.
View description>>

Information search may be especially crucial in an emerging economy context where gaps in knowledge are magnified due to the limited availability, accessibility, and quality of sources. Under the framework of social embeddedness, we observe the role of previous entrepreneurial experience in information search conducted during start-up. The impact of information search on future growth is also explored. Based on an empirical study of 172 Turkish entrepreneurs, the results indicate that (1) first-time entrepreneurs search more intensely, (2) first-time entrepreneurs utilize a greater number of formal resources, and (3) the intensity of information search is positively related with future growth.

Fis, AM & Çetindamar, D 2013, 'Start-Up Information Search Practices: The Case of Turkey', Emerging Markets Finance and Trade, vol. 49, no. 6, pp. 22-36.
View/Download from: Publisher's site
View description>>

Information search may be especially crucial in an emerging economy context where gaps in knowledge are magnified due to the limited availability, accessibility, and quality of sources. Under the framework of social embeddedness, we observe the role of previous entrepreneurial experience in information search conducted during start-up. The impact of information search on future growth is also explored. Based on an empirical study of 172 Turkish entrepreneurs, the results indicate that (1) first-time entrepreneurs search more intensely, (2) first-time entrepreneurs utilize a greater number of formal resources, and (3) the intensity of information search is positively related with future growth.

Forsythe, P, Jupp, J & Sawhney, A 2013, 'Building Information Modelling in Tertiary Construction Project Management Education: A Programme-wide Implementation Strategy', Journal for Education in the Built Environment, vol. 8, no. 1, pp. 16-34.
View/Download from: Publisher's site
View description>>

This paper reports on the on-going development of teaching and learning supported by Building Information Modelling (BIM) in the undergraduate Construction Project Management Programme at the University of Technology Sydney. BIM is a model-driven approach to designing, constructing, operating and maintaining buildings and civil engineering facilities. The model that forms the core of the BIM approach is a smart, shared and computable three-dimensional model of the building or the civil engineering facility. At its heart, BIM and Virtual Construction Models (VCMs) are used to facilitate a more integrated and visual mode of teaching. The approach provides a new basis for developing problem based learning - one that has the potential to allow students to aggregate their learning around a central project whilst enabling problems to be scaled at different levels of complexity. This approach aims to better integrate and link individual subjects together as well as improve the development of core student attributes such as communication, understanding, decision making, collaboration and information gathering skills; very much mimicking the on-going technology driven transformation happening in industry. The VCMs aim to be regularly used in various formats as students progress through their undergraduate degree programme - and we adopt the term `vertical problems' to capture the way models and problem based learning are being utilised, where staff author `sub-plots' that utilise information models in a way that best suits their specific subjects, e.g. cost, time, quality, sustainability subject areas. To this end, the article reports on findings from the research, development and early implementation stages of a programme-wide teaching and learning proposition supported by BIM. This includes a typology that helps target varying degrees of model utilisation and diffusion in given subjects and transitional requirements for both staff and students.

Fowler, AG, Devitt, SJ & Jones, C 2013, 'Surface code implementation of block code state distillation', Scientific Reports, vol. 3, no. 1.
View/Download from: Publisher's site

Frati, F, Gaspers, S, Gudmundsson, J & Mathieson, L 2013, 'Augmenting graphs to minimize the diameter', Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 8283 LNCS, pp. 383-393.
View/Download from: Publisher's site
View description>>

We study the problem of augmenting a weighted graph by inserting edges ofbounded total cost while minimizing the diameter of the augmented graph. Ourmain result is an FPT 4-approximation algorithm for the problem.

Freedland, SJ, Carducci, M, Kroeger, N, Partin, A, Rao, J-Y, Jin, Y, Kerkoutian, S, Wu, H, Li, Y, Creel, P, Mundy, K, Gurganus, R, Fedor, H, King, SA, Zhang, Y, Heber, D & Pantuck, AJ 2013, 'A Double-Blind, Randomized, Neoadjuvant Study of the Tissue Effects of POMx Pills in Men with Prostate Cancer Before Radical Prostatectomy', Cancer Prevention Research, vol. 6, no. 10, pp. 1120-1127.
View/Download from: Publisher's site
View description>>

Abstract Pomegranates slow prostate cancer xenograft growth and prolong prostate-specific antigen (PSA) doubling times in single-arm human studies. Pomegranates' effects on human prostate tissue are understudied. We hypothesized that orally administered pomegranate extract (POMx; Pom Wonderful) would lower tissue 8-hydroxy-2′-deoxyguanosine (8-OHdG), an oxidative stress biomarker. Seventy men were randomized to two tablets, POMx or placebo, daily up to four weeks before radical prostatectomy. Tissue was analyzed for intraprostatic urolithin A, a pomegranate metabolite, benign and malignant 8-OHdG, and cancer pS6 kinase, NF-κB, and Ki67. Primary endpoint was differences in 8-OHdG, and the study was powered to detect 35% reduction. POMx was associated with 16% lower benign tissue 8-OHdG (P = 0.095), which was not statistically significant. POMx was well tolerated with no treatment-related withdrawals. There were no differences in baseline clinicopathological features between arms. Urolithin A was detected in 21 of the 33 patients in the POMx group versus 12 of the 35 in the placebo group (P = 0.031). Cancer pS6 kinase, NF-κB, Ki67, and serum PSA changes were similar between arms. POMx before surgery results in pomegranate metabolite accumulation in prostate tissues. Our primary endpoint in this modest-sized short-term trial was negative. Future larger longer studies are needed to more definitively test whether POMx reduces prostate oxidative stress, as well as further animal testing to better understand the multiple mechanisms through which POMx may alter prostate cancer biology. Cancer Prev Res; 6(10); 1120–7. ©2013 AACR.

Frost, SA, Nguyen, ND, Center, JR, Eisman, JA & Nguyen, TV 2013, 'Excess mortality attributable to hip-fracture: A relative survival analysis', Bone, vol. 56, no. 1, pp. 23-29.
View/Download from: Publisher's site
View description>>

Introduction: Individuals with hip fracture are at substantially increased risk of mortality. The aim of this study was to estimate the excess mortality attributable to hip fracture in elderly men and women. Methods: The Dubbo Osteoporosis Epidemiology Study was designed as a prospective epidemiologic investigation, in which more than 2000 men and women aged 60+ as of 1989 had been followed for 21 years. During the follow-up period, the incidence of atraumatic hip fractures was ascertained by X-ray reports, and mortality was ascertained by the New South Wales Birth, Death and Marriage Registry. Relative survival ratios were estimated by taking into account the age-and-sex specific expected survival in the general Australian population from 1989 to 2010. Results: During the follow-up period 151 women and 55 men sustained a hip fracture. Death occurred in 86 (57%) women and 36 (66%) men. In women, the cumulative relative survival post hip-fracture at 1, 5 and 10 years was 0.83 (95% confidence interval (CI) 0.76-0.89), 0.59 (95% CI 0.48-0.68), and 0.31 (95% Cl 0.20-0.43), respectively; in men, the corresponding estimates of relative survival were: 0.63 (95% CI 0.48-0.75), 0.48 (95% CI 0.32-0.63), and 0.36 (95% CI 0.18-0.56). On average post hip-fracture women died 4 years earlier (median: 4.1, inter-quartile range (IQR) 1.7-7.8) and men died 5 years earlier (median = 4.8, IQR 2.4-7.0) than expected. For every six women and for every three men with hip fracture one extra death occurred above that expected in the background population. Conclusion: Hip fracture is associated with reduced life expectancy, with men having a greater reduction than women, even after accounting for time-related changes in background mortality in the population. These data underscore that hip fracture is an independent clinical risk factor for mortality.

Fu, Q, Halim, A, Kim, J, Scofield, JMP, Gurr, PA, Kentish, SE & Qiao, GG 2013, 'Highly permeable membrane materials for CO2 capture', Journal of Materials Chemistry A, vol. 1, no. 44, pp. 13769-13769.
View/Download from: Publisher's site

Fujioka, T & Nghiem, LD 2013, 'Modification of a polyamide reverse osmosis membrane by heat treatment for enhanced fouling resistance', Water Supply, vol. 13, no. 6, pp. 1553-1559.
View/Download from: Publisher's site
View description>>

The use of heat treatment to improve solute rejection and fouling resistance of a polyamide reverse osmosis (RO) membrane was investigated in this study. Heat treatment was carried out by immersing the membrane samples in Milli-Q water at 70 °C for a specific duration. Heat treatment (24 h) reduced the pure water permeability from 4.1 to 2.8 L/m2hbar but improved conductivity rejection from 95.5 to 97.0%. As a result, a correlation was observed between changes in the two parameters. Marginal changes in the membrane surface characteristics (i.e. zeta potential, hydrophobicity, chemistry and roughness) were observed as a result of heat treatment. Heat treatment significantly improved the fouling resistance property of the RO membrane. When the secondary effluent was filtrated at an elevated permeated flux, the virgin RO membrane exhibited 30% flux decline while the heat-treated membrane showed only 12% flux decline. This is possibly because heat treatment resulted in a denser cross-linked active skin layer, thus reducing the blockage caused by small organic foulants.

Fujioka, T, Khan, SJ, McDonald, JA, Henderson, RK, Poussade, Y, Drewes, JE & Nghiem, LD 2013, 'Effects of membrane fouling on N-nitrosamine rejection by nanofiltration and reverse osmosis membranes', Journal of Membrane Science, vol. 427, pp. 311-319.
View/Download from: Publisher's site

Fujioka, T, Khan, SJ, McDonald, JA, Roux, A, Poussade, Y, Drewes, JE & Nghiem, LD 2013, 'N-nitrosamine rejection by nanofiltration and reverse osmosis membranes: The importance of membrane characteristics', Desalination, vol. 316, pp. 67-75.
View/Download from: Publisher's site

Fujioka, T, Khan, SJ, McDonald, JA, Roux, A, Poussade, Y, Drewes, JE & Nghiem, LD 2013, 'N-nitrosamine rejection by reverse osmosis membranes: A full-scale study', Water Research, vol. 47, no. 16, pp. 6141-6148.
View/Download from: Publisher's site

Fujioka, T, Oshima, N, Suzuki, R, Khan, SJ, Roux, A, Poussade, Y, Drewes, JE & Nghiem, LD 2013, 'Rejection of small and uncharged chemicals of emerging concern by reverse osmosis membranes: The role of free volume space within the active skin layer', Separation and Purification Technology, vol. 116, pp. 426-432.
View/Download from: Publisher's site

FURQAN, F & HOANG, DB 2013, 'Wireless Fair Intelligent Congestion Control — A QoS Performance Evaluation', Journal of Interconnection Networks, vol. 14, no. 03, pp. 1360001-1360001.
View/Download from: Publisher's site
View description>>

In Broadband Wireless Access (BWA) networks, provisioning of Quality of Service (QoS) is absolutely essential for real time and non real time services. Congestion in these networks can lead to deterioration in QoS experienced by the network users. Congestion avoidance is rarely considered to ensure the QoS of wireless connections. Efforts are mainly aimed at reducing the overload once it has occurred. To avoid congestion at the base station in WiMAX networks, the WiMAX Fair Intelligent Congestion Control (WFICC) was proposed to ensure the traffic is scheduled in such a way that the base station output buffer operates around a target operating point without violating the QoS requirements of connections. The aim of this paper is to investigate WFICC thoroughly and evaluate its performance in terms of throughput, delay and jitter for different Classes of Services (CoSs) under various parameter settings of the algorithm. A detailed and comprehensive simulation study on various settings of parameters is performed in ns-2. The results show that WFICC performs excellently in allocating resources fairly among Class of Services (CoSs) and also preserves their QoS requirements. Furthermore, WFICC is robust and easily adapted to various traffic conditions.

Furrer, F, Berta, M, Tomamichel, M, Scholz, VB & Christandl, M 2013, 'Position-Momentum Uncertainty Relations in the Presence of Quantum Memory', J. Math. Phys., vol. 55, no. 12, p. 122205.
View/Download from: Publisher's site
View description>>

A prominent formulation of the uncertainty principle identifies thefundamental quantum feature that no particle may be prepared with certainoutcomes for both position and momentum measurements. Often the statisticaluncertainties are thereby measured in terms of entropies providing a clearoperational interpretation in information theory and cryptography. Recently,entropic uncertainty relations have been used to show that the uncertainty canbe reduced in the presence of entanglement and to prove security of quantumcryptographic tasks. However, much of this recent progress has been focused onobservables with only a finite number of outcomes not including Heisenberg'soriginal setting of position and momentum observables. Here we show entropicuncertainty relations for general observables with discrete but infinite orcontinuous spectrum that take into account the power of an entangled observer.As an illustration, we evaluate the uncertainty relations for position andmomentum measurements, which is operationally significant in that it impliessecurity of a quantum key distribution scheme based on homodyne detection ofsqueezed Gaussian states.

Gad Mohsen, M & Dacko, S 2013, 'An extension of the benefit segmentation base for the consumption of organic foods: A time perspective', Journal of Marketing Management, vol. 29, no. 15-16, pp. 1701-1728.
View/Download from: Publisher's site
View description>>

Benefit segmentation is a long-standing marketing approach that emphasises the 'what' and 'how' dimensions of consumer benefits; that is, what benefits consumers perceive in product/service consumption, and how such benefits are perceived. This research proposes a fresh time-based approach to benefit segmentation - namely, focusing on the 'when' element or when in time benefits take effect. Drawing upon a survey of UK consumers, it explains and discusses consumption motivations through examining antecedents of temporally dominated benefits in application to organic food. Specifically, the study investigates why some consumers predominantly seek present-based benefits vis-à-vis future-based benefits or vice versa in organic food purchase and consumption behaviour. Using correlation and regression analyses, the research findings establish significant associations of level of involvement, prior knowledge level, and product usage level, and some association of time orientation with the temporally emphasised consumption benefits consumers ultimately pursue. Overall, the research highlights the added contribution of a time perspective in a benefit segmentation approach which can assist marketers in understanding better and communicating more effectively with consumers through drawing up consumer profiles based on when in time their dominantly pursued benefit for an offering is perceived to take effect. © 2013 The Author(s). Published by Taylor & Francis.

Gallego-Ortega, D, Oakes, SR, Lee, HJ, Piggin, CL & Ormandy, CJ 2013, 'ELF5, normal mammary development and the heterogeneous phenotypes of breast cancer', Breast Cancer Management, vol. 2, no. 6, pp. 489-498.
View/Download from: Publisher's site
View description>>

SUMMARY The ETS transcription factor ELF5 specifies the formation of the secretory cell lineage of the mammary gland during pregnancy, by directing cell fate decisions of the mammary progenitor cells. The decision-making activity continues in breast cancer, where in luminal breast cancer cells forced ELF5 expression suppresses estrogen sensitivity and shifts gene expression toward the basal molecular subtype. The development of anti-estrogen resistance in luminal breast cancer is accompanied by increased expression of ELF5 and acquired dependence on ELF5 for continued proliferation, providing a potential new therapeutic target or prognostic marker to improve the treatment of this stage of the disease. Forced ELF5 expression suppresses the mesenchymal phenotype, making cells more epithelial and producing lower rates of invasion and motility. Conversely, loss of ELF5 promotes metastasis, with a clear corollary in the claudin-low subtype of breast cancer, which does not express ELF5 and is highly metastatic, or during the final stages of tumor progression, where loss of ELF5 expression may be involved in the acquisition of the lethal phenotype. In circumstances where ELF5 expression increases in parallel with metastatic potential, such as anti-estrogen resistant luminal breast cancers and basal breast cancer, there is much more to be understood about ELF5 and metastasis.

Gandomi, A & Zolfaghari, S 2013, 'Profitability of loyalty reward programs: An analytical investigation', Omega, vol. 41, no. 4, pp. 797-807.
View/Download from: Publisher's site

Gandomi, AH, Alavi, AH, Shadmehri, DM & Sahab, MG 2013, 'An empirical model for shear capacity of RC deep beams using genetic-simulated annealing', Archives of Civil and Mechanical Engineering, vol. 13, no. 3, pp. 354-369.
View/Download from: Publisher's site

Gandomi, AH, Fridline, MM & Roke, DA 2013, 'Decision Tree Approach for Soil Liquefaction Assessment', The Scientific World Journal, vol. 2013, no. 1, pp. 1-8.
View/Download from: Publisher's site
View description>>

In the current study, the performances of some decision tree (DT) techniques are evaluated for postearthquake soil liquefaction assessment. A database containing 620 records of seismic parameters and soil properties is used in this study. Three decision tree techniques are used here in two different ways, considering statistical and engineering points of view, to develop decision rules. The DT results are compared to the logistic regression (LR) model. The results of this study indicate that the DTs not only successfully predict liquefaction but they can also outperform the LR model. The best DT models are interpreted and evaluated based on an engineering point of view.

Gandomi, AH, Roke, DA & Sett, K 2013, 'Genetic programming for moment capacity modeling of ferrocement members', Engineering Structures, vol. 57, pp. 169-176.
View/Download from: Publisher's site

Gandomi, AH, Talatahari, S, Tadbiri, F & Alavi, AH 2013, 'Krill herd algorithm for optimum design of truss structures', International Journal of Bio-Inspired Computation, vol. 5, no. 5, pp. 281-281.
View/Download from: Publisher's site

Gandomi, AH, Talatahari, S, Yang, X & Deb, S 2013, 'Design optimization of truss structures using cuckoo search algorithm', The Structural Design of Tall and Special Buildings, vol. 22, no. 17, pp. 1330-1349.
View/Download from: Publisher's site
View description>>

SUMMARYA new metaheuristic optimization algorithm is developed to solve truss optimization problems. The new algorithm, called cuckoo search (CS), is examined by solving five truss design optimization problems with increasing numbers of design variables and complexity in constraints. The performance of the CS algorithm is further compared with various classical and advanced algorithms, selected from a wide range of the state‐of‐the‐art algorithms in the area. The results identify that the final solutions obtained by the CS are superior compared with the best solutions obtained by the other algorithms. Finally, the unique search features used in the CS and the implications for future researches are discussed in detail. Copyright © 2012 John Wiley & Sons, Ltd.

Gandomi, AH, Yang, X-S & Alavi, AH 2013, 'Cuckoo search algorithm: a metaheuristic approach to solve structural optimization problems', Engineering with Computers, vol. 29, no. 1, pp. 17-35.
View/Download from: Publisher's site

Gandomi, AH, Yang, X-S & Alavi, AH 2013, 'Erratum to: Cuckoo search algorithm: a metaheuristic approach to solve structural optimization problems', Engineering with Computers, vol. 29, no. 2, pp. 245-245.
View/Download from: Publisher's site

Gandomi, AH, Yang, X-S, Alavi, AH & Talatahari, S 2013, 'Bat algorithm for constrained optimization tasks', Neural Computing and Applications, vol. 22, no. 6, pp. 1239-1255.
View/Download from: Publisher's site

Gandomi, AH, Yang, X-S, Talatahari, S & Alavi, AH 2013, 'Firefly algorithm with chaos', Communications in Nonlinear Science and Numerical Simulation, vol. 18, no. 1, pp. 89-98.
View/Download from: Publisher's site

Gandomi, AH, Yun, GJ & Alavi, AH 2013, 'An evolutionary approach for modeling of shear strength of RC deep beams', Materials and Structures, vol. 46, no. 12, pp. 2109-2119.
View/Download from: Publisher's site

Gandomi, AH, Yun, GJ, Yang, X-S & Talatahari, S 2013, 'Chaos-enhanced accelerated particle swarm optimization', Communications in Nonlinear Science and Numerical Simulation, vol. 18, no. 2, pp. 327-340.
View/Download from: Publisher's site

Gao, S, Tsang, IW-H & Chia, L-T 2013, 'Laplacian Sparse Coding, Hypergraph Laplacian Sparse Coding, and Applications', IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 35, no. 1, pp. 92-104.
View/Download from: Publisher's site
View description>>

Sparse coding exhibits good performance in many computer vision applications. However, due to the overcomplete codebook and the independent coding process, the locality and the similarity among the instances to be encoded are lost. To preserve such locality and similarity information, we propose a Laplacian sparse coding (LSc) framework. By incorporating the similarity preserving term into the objective of sparse coding, our proposed Laplacian sparse coding can alleviate the instability of sparse codes. Furthermore, we propose a Hypergraph Laplacian sparse coding (HLSc), which extends our Laplacian sparse coding to the case where the similarity among the instances defined by a hypergraph. Specifically, this HLSc captures the similarity among the instances within the same hyperedge simultaneously, and also makes the sparse codes of them be similar to each other. Both Laplacian sparse coding and Hypergraph Laplacian sparse coding enhance the robustness of sparse coding. We apply the Laplacian sparse coding to feature quantization in Bag-of-Words image representation, and it outperforms sparse coding and achieves good performance in solving the image classification problem. The Hypergraph Laplacian sparse coding is also successfully used to solve the semi-auto image tagging problem. The good performance of these applications demonstrates the effectiveness of our proposed formulations in locality and similarity preservation. © 1979-2012 IEEE.

Gao, XJ, Zhang, Q, Wei, DB, Jiao, SH & Jiang, ZY 2013, 'Dry Sliding Wear of As-Cast and Thermomechanically Processed Low Chromium White Cast Iron', Advanced Materials Research, vol. 797, pp. 725-730.
View/Download from: Publisher's site
View description>>

This investigation attempts to improve the wear resistance of low chromium white cast iron (LCCI) by thermomechanical treatment. The thermomechanical treatment of the brittle LCCI with crack-free was successfully carried out by bonding it with a ductile low carbon steel firstly. Afterwards the dry sliding wear behavior of as-cast (LCCI-A) and thermomechanically processed (LCCI-B) samples was studied using a pin-on-disc apparatus under different test conditions. The microstructural examination shows that the refined supercooled austenite and plenty of secondary carbides in LCCI-B replaced the original microstructure of martensite and retained austenite with network carbide in LCCI-A. This significant evolution is beneficial to form and stabilise the oxide layer on the substrate, which makes the oxidational wear rather than abrasive wear or delamination dominating the wear process so that the improvement of the wear resistance of LCCI was achieved by hot working.

Gao, XJ, Zhang, Q, Wei, DB, Jiao, SH & Jiang, ZY 2013, 'Effects of thermal and thermomechanical treatments on sliding wear of graphite crystallised white cast iron', Wear, vol. 301, no. 1-2, pp. 656-662.
View/Download from: Publisher's site
View description>>

The effects of thermal and thermomechanical treatments on sliding wear of graphite crystallised white cast iron (GWCI) were studied. Due to the inherent embrittlement of GWCI, a laminated metal in which the GWCI is cladded by low carbon steel was prepared for this study. Three cylindrical samples (GWCI-A, GWCI-B and GWCI-C) were machined from the same laminate. GWCI-A was kept in as-cast state while GWCI-B and GWCI-C underwent the thermal and thermomechanical treatments, respectively. The pin-on-disc type sliding wear tests were performed on the GWCI layers at room temperature. The microstructures and wear mechanisms were analysed by optical microscope, scanning electron microscope and the Vickers hardness test. Experimental results demonstrated that the GWCI, after laminating with ductile steel, can be deformed at high temperature with crack-free. The thermomechanical treatment produced a finer microstructure and crushed primary carbides in GWCI-C. Both GWCI-B and GWCI-C displayed plenty of secondary carbides in supercooled austenitic matrix, which was more favourable to squeeze the graphite and form the oxide layers than the matrix of martensite plus retained austenite in GWCI-A. The wear resistance of GWCI-C was superior to that of GWCI-A and GWCI-B because the oxidational wear rather than delamination dominated the sliding wear process.

Garde-Perik, EVD, Offermans, S, Boerdonk, KV, Lenssen, K-M & Hoven, EVD 2013, 'An analysis of input-output relations in interaction with smart tangible objects', ACM Transactions on Interactive Intelligent Systems, vol. 3, no. 2, pp. 1-20.
View/Download from: Publisher's site
View description>>

This article focuses on the conceptual relation between the user's input and a system's output in interaction with smart tangible objects. Understanding this input-output relation (IO relation) is a prerequisite for the design of meaningful interaction. A meaningful IO relation allows the user to know what to do with a system to achieve a certain goal and to evaluate the outcome. The work discussed in this article followed a design research process in which four concepts were developed and prototyped. An evaluation was performed using these prototypes to investigate the effect of highly different IO relations on the user's understanding of the interaction. The evaluation revealed two types of IO relations differing in functionality and the number of mappings between the user and system actions. These two types of relations are described by two IO models that provide an overview of these mappings. Furthermore, they illustrate the role of the user and the influence of the system in the process of understanding the interaction. The analysis of the two types of IO models illustrates the value of understanding IO relations for the design of smart tangible objects.

Gardner, A & Willey, K 2013, 'Editorial', European Journal of Engineering Education, vol. 38, no. 6, pp. 579-581.
View/Download from: Publisher's site

Ge, Y, Chen, M, Sun, Y, Li, Z, Wang, Y & Dutkiewicz, E 2013, 'QoS provisioning wireless multimedia transmission over cognitive radio networks', Multimedia Tools and Applications, vol. 67, no. 1, pp. 213-229.
View/Download from: Publisher's site
View description>>

The rapid growing of wireless multimedia applications increases the needs of spectrum resources, but today's spectrum resources have become more and more scarce and large part of the assigned spectrum is in an inefficiency usage. Cognitive Radio (CR) technologies are proposed to solve current spectrum inefficiency problems and offer users a ubiquitous wireless accessing environment, relying on dynamic spectrum allocation. However, there are two unsolved problems in previous work: 1) based on the simplified Quality of Service (QoS) uniform assumption, specific requirements of different wireless multimedia applications cannot be sati sfied; 2) aiming at single-objective optimization of spectrum utilization or handoff rate, the co-optimization of these two necessary objectives in CR networks has not been achieved. In this paper, we propose a Two-tier Cooperative Spectrum Allocation method (TCSA) to solve these two problems. TCSA consists of two functional parts: one is a Spectrum Adjacency Ranking algorithm implemented at the secondary users' terminals to satisfy the QoS requirements for different wireless multimedia applications; and the other is a Max Hyper-weight Matching algorithm implemented at the cognitive engines of CR networks to co-optimize spectrum utilization and secondary users' spectrum handoff rate. Simulation results show that, compared with the other Random matching algorithm and Cost minimized algorithm, TCSA can significantly improve the performance of CR networks in terms of secondary users' throughput and spectrum handoff rate. © 2011 Springer Science+Business Media, LLC.

Gentile, C, Muise-Helmericks, RC & Drake, CJ 2013, 'VEGF-mediated phosphorylation of eNOS regulates angioblast and embryonic endothelial cell proliferation', Developmental Biology, vol. 373, no. 1, pp. 163-175.
View/Download from: Publisher's site

Gil-Lafuente, AM & Merigo, JM 2013, 'Modelling and Simulation in Enterprises – MS’10 Barcelona', Kybernetes, vol. 42, no. 5, pp. 251-269.
View/Download from: Publisher's site

Gil-Lafuente, AM & Merigo, JM 2013, 'Modelling and Simulation in Enterprises - MS'10 Barcelona', KYBERNETES, vol. 42, no. 5, pp. 671-673.
View/Download from: Publisher's site

Gluga, R, Kay, J, Lister, R, Simon & Kleitman, S 2013, 'Mastering cognitive development theory in computer science education', Computer Science Education, vol. 23, no. 1, pp. 24-57.
View/Download from: Publisher's site
View description>>

Abstract: To design an effective computer science curriculum, educators require a systematic method of classifying the difficulty level of learning activities and assessment tasks. This is important for curriculum design and implementation and for communication between educators. Different educators must be able to use the method consistently, so that classified activities and assessments are comparable across the subjects of a degree, and, ideally, comparable across institutions. One widespread approach to supporting this is to write learning objects in terms of Blooms Taxonomy. This, or other such classifications, is likely to be more effective if educators can use them consistently, in the way experts would use them. To this end, we present the design and evaluation of our online interactive web-based tutorial system, which can be configured and used to offer training in different classification schemes. We report on results from three evaluations. First, 17 computer science educators complete a tutorial on using Blooms Taxonomy to classify programming examination questions. Second, 20 computer science educators complete a Neo-Piagetian tutorial. Third evaluation was a comparison of inter-rater reliability scores of computer science educators classifying programming questions using Blooms Taxonomy, before and after taking our tutorial. Based on the results from these evaluations, we discuss the effectiveness of our tutorial system design for teaching computer science educators how to systematically and consistently classify programming examination questions. We also discuss the suitability of Blooms Taxonomy and Neo-Piagetian theory for achieving this goal. The Blooms and Neo-Piagetian tutorials are made available as a community resource. The contributions of this paper are the following: the tutorial system for learning classification schemes for the purpose of coding the difficulty of computing learning materials; its evaluation; new insights into the consis...

Goldberg, L, Tijssen, MR, Birger, Y, Hannah, RL, Kinston, SJ, Schütte, J, Beck, D, Knezevic, K, Schiby, G, Jacob-Hirsch, J, Biran, A, Kloog, Y, Marcucci, G, Bloomfield, CD, Aplan, PD, Pimanda, JE, Göttgens, B & Izraeli, S 2013, 'Genome-scale expression and transcription factor binding profiles reveal therapeutic targets in transgenic ERG myeloid leukemia', Blood, vol. 122, no. 15, pp. 2694-2703.
View/Download from: Publisher's site
View description>>

Key PointsERG overexpression in transgenic mice induces a transcriptional leukemia stem cell program characteristic of human AML. PIM1 and RAS are relevant ERG therapeutic targets.

Golsteijn, C & van den Hoven, E 2013, 'Facilitating parent-teenager communication through interactive photo cubes', PERSONAL AND UBIQUITOUS COMPUTING, vol. 17, no. 2, pp. 273-286.
View/Download from: Publisher's site
View description>>

Because most teenagers strive for freedom and try to live autonomously, communication with their parents could be improved. It appeared from a literature review and a diary study that parent-teenager communication primarily addresses teenager-oriented everyday activities. However, it also showed teenagers have a substantial interest in getting to know their parents and their parents' past. The study described in this paper seeks to address this opportunity by designing a product for parents and teenagers that facilitates communication about the past of the parents. The resulting design, called Cueb, is a set of interactive digital photo cubes with which parents and teenagers can explore individual and shared experiences and are triggered to exchange stories. An evaluation of a prototype of Cueb with four families showed that the participants felt significantly more triggered and supported to share their experiences and tell stories with Cueb's full functionality (connecting cubes, switching, and locking photographs) than with limited functionality (shaking to display random photographs), similar to more traditional photo media.

Goodswen, SJ, Kennedy, PJ & Ellis, JT 2013, 'A guide to in silico vaccine discovery for eukaryotic pathogens', BRIEFINGS IN BIOINFORMATICS, vol. 14, no. 6, pp. 753-774.
View/Download from: Publisher's site
View description>>

In this article, a framework for an in silico pipeline is presented as a guide to high-throughput vaccine candidate discovery for eukaryotic pathogens, such as helminths and protozoa. Eukaryotic pathogens are mostly parasitic and cause some of the most damaging and difficult to treat diseases in humans and livestock. Consequently, these parasitic pathogens have a significant impact on economy and human health. The pipeline is based on the principle of reverse vaccinology and is constructed from freely available bioinformatics programs. There are several successful applications of reverse vaccinology to the discovery of subunit vaccines against prokaryotic pathogens but not yet against eukaryotic pathogens. The overriding aim of the pipeline, which focuses on eukaryotic pathogens, is to generate through computational processes of elimination and evidence gathering a ranked list of proteins based on a scoring system. These proteins are either surface components of the target pathogen or are secreted by the pathogen and are of a type known to be antigenic. No perfect predictive method is yet available; therefore, the highest-scoring proteins from the list require laboratory validation.

Goodswen, SJ, Kennedy, PJ & Ellis, JT 2013, 'A novel strategy for classifying the output from an in silico vaccine discovery pipeline for eukaryotic pathogens using machine learning algorithms', BMC BIOINFORMATICS, vol. 14, no. 1, pp. 315-327.
View/Download from: Publisher's site
View description>>

An in silico vaccine discovery pipeline for eukaryotic pathogens typically consists of several computational tools to predict protein characteristics. The aim of the in silico approach to discovering subunit vaccines is to use predicted characteristics to identify proteins which are worthy of laboratory investigation. A major challenge is that these predictions are inherent with hidden inaccuracies and contradictions. This study focuses on how to reduce the number of false candidates using machine learning algorithms rather than relying on expensive laboratory validation. Proteins from Toxoplasma gondii, Plasmodium sp., and Caenorhabditis elegans were used as training and test datasets.

Goodswen, SJ, Kennedy, PJ & Ellis, JT 2013, 'A review of the infection, genetics, and evolution of Neospora caninum: From the past to the present', INFECTION GENETICS AND EVOLUTION, vol. 13, no. 1, pp. 133-150.
View/Download from: Publisher's site
View description>>

This paper is a review of current knowledge on Neospora caninum in the context of other apicomplexan parasites and with an emphasis on: life cycle, disease, epidemiology, immunity, control and treatment, evolution, genomes, and biological databases and web resources. N. caninum is an obligate, intracellular, coccidian, protozoan parasite of the phylum Apicomplexa. Infection can cause the clinical disease neosporosis, which most notably is associated with abortion in cattle. These abortions are a major root cause of economic loss to both the dairy and beef industries worldwide. N. caninum has been detected in every country in which a study has been specifically conducted to detect this parasite in cattle. The major mode of transmission in cattle is transplacental (or vertical) transmission and several elements of the N. caninum life cycle are yet to be studied in detail. The outcome of an infection is inextricably linked to the precise timing of the infection coupled with the status of the immune system of the dam and foetus. There is no community consensus as to whether it is the dams pro-inflammatory cytotoxic response to tachyzoites that kills the foetus or the tachyzoites themselves. From economic analysis the most cost-effective approach to control neosporosis is a vaccine. The perfect vaccine would protect against both infection and the clinical disease, and this implies a vaccine is needed that can induce a non-foetopathic cell mediated immunity response. Researchers are beginning to capitalise on the vast potential of -omics data (e.g. genomes, transcriptomes, and proteomes) to further our understanding of pathogens but especially to identify vaccine and drug targets. The recent publication of a genome for N. caninum offers vast opportunities in these areas.

Grassman, TJ, Carlin, JA, Galiana, B, Yang, L-M, Yang, F, Mills, MJ & Ringel, SA 2013, 'Nucleation-related defect-free GaP/Si(100) heteroepitaxy via metal-organic chemical vapor deposition', Applied Physics Letters, vol. 102, no. 14, pp. 142102-142102.
View/Download from: Publisher's site
View description>>

GaP/Si heterostructures were grown by metal-organic chemical vapor deposition in which the formation of all heterovalent nucleation-related defects (antiphase domains, stacking faults, and microtwins) were fully and simultaneously suppressed, as observed via transmission electron microscopy (TEM). This was achieved through a combination of intentional Si(100) substrate misorientation, Si homoepitaxy prior to GaP growth, and GaP nucleation by Ga-initiated atomic layer epitaxy. Unintentional (311) Si surface faceting due to biatomic step-bunching during Si homoepitaxy was observed by atomic force microscopy and TEM and was found to also yield defect-free GaP/Si interfaces.

Grassman, TJ, Ratcliff, C, Carlin, AM, Carlin, JA, Yang, L, Mills, MJ & Ringel, SA 2013, '(Invited) III-V/GaP Epitaxy on Si for Advanced Photovoltaics and Green Light Emitters', ECS Transactions, vol. 50, no. 9, pp. 321-332.
View/Download from: Publisher's site
View description>>

Epitaxy of III-V compound semiconductors on Si-based substrates with lattice constants between Si and Ge is of great interest for photovoltaic applications as it opens a pathway for achieving near ideal bandgap profiles for maximum solar energy conversion efficiency while simultaneously providing a low-cost Si production platform for III-V cell technologies. The same range of lattice constants also enables access to direct gap III-Vs that can fill the 'green gap' present in light emitting devices. This presentation focuses on the materials and III-V/Si heteroepitaxy issues that are currently being addressed, which can lead to breakthrough technologies for both photovoltaics and light emitting devices. We focus on an approach in which the grading between Si and Ge (GaAs) is achieved via wider bandgap GaAsyP1-y metamorphic buffers, from GaP to GaAs, enabling access to the underlying Si as an active solar cell component.

Guadie, A, Xia, S, Zhang, Z, Guo, W, Ngo, HH & Hermanowicz, SW 2013, 'Simultaneous removal of phosphorus and nitrogen from sewage using a novel combo system of fluidized bed reactor-membrane bioreactor (FBR-MBR)', BIORESOURCE TECHNOLOGY, vol. 149, no. 1, pp. 276-285.
View/Download from: Publisher's site
View description>>

A FBRMBR combo system was designed as a novel approach for simultaneous phosphorus and nitrogen removal from sewage. The combo system was evaluated more than 7 months under variable pH (7.5-9.5), hydraulic retention times (HRT = 2-10 h), intermittent aeration cycles (IAC) (on/off = 60/60-15/45 min) and sludge retention times (SRT = 1060 d). Prior recovery of phosphorus as struvite in the FBR enhanced nitrogen and COD removal efficiency in MBR. Under optimum operating conditions (pH = 9, HRT = 6 h and IAC = 45/15 min), PO43-P, NH4-N and COD removal efficiencies were 92.6 ± 4.2, 98.7 ± 1.2 and 99.3 ± 0.5%, respectively. Stable mixed liquor suspended solid concentration (3.0-5.0 g/L); enhanced nitrificationdenitrification activity (78-92%) and reduced transmembrane pressure were also achieved. Compared to soluble microbial products, extracellular polymeric substances (EPS) showed strong correlation with fast membrane fouling. Among EPS components, carbohydrate rather than protein was associated with membrane fouling. Except HRT, all parameters considered (pH, IAC, SRT) showed a significant effect on removal efficiency.

Gupta, B, Zhu, Y, Guan, B, Reece, PJ & Gooding, JJ 2013, 'Functionalised porous silicon as a biosensor: emphasis on monitoring cells in vivo and in vitro', The Analyst, vol. 138, no. 13, pp. 3593-3593.
View/Download from: Publisher's site

Ha, QP, Nguyen, MT, Li, J & Kwok, NM 2013, 'Smart Structures With Current-Driven MR Dampers: Modeling and Second-Order Sliding Mode Control', IEEE-ASME TRANSACTIONS ON MECHATRONICS, vol. 18, no. 6, pp. 1702-1712.
View/Download from: Publisher's site
View description>>

Smart structures are civil or mechanical structures that can automatically and intelligently react to external dynamic loadings such as vibration shocks, strong winds, destructive waves, and earthquakes. The use of magnetorheological (MR) dampers has been of increasing interest in smart structures as they have reliable, stable and fail-safe operations, small energy requirements, and fast responses. The challenges of MR damper structural control rest with the complex dynamics involved, high nonlinearity due to the force-velocity hysteresis, nonaffinity, and constraints of the control system with the magnetization current as its input. To address these problems, this paper presents the modeling and control design as well as the implementation results of a second-order sliding mode controller for the MR dampers embedded in the building structures subject to quake-induced vibrations. Based on the static hysteresis model of the MR damper using computationally tractable algebraic expressions, algorithms are proposed to control directly the magnetization current to the dampers, configured in a differential mode to counteract the offset force. The effectiveness of the proposed technique is verified in simulation by using a building model under quake-like excitations. The experimental results are provided on a laboratorial setup tested on a shake table. © 2013 IEEE.

Hagare, D, Hagare, P & Borg, M 2013, 'Economic Evaluation of Stormwater Harvesting-A Case Study', JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE, vol. 93, no. 2, pp. 285-293.
View description>>

Harvesting Stormwater is gaining importance as it is viewed as a potential alternative source for meeting non-potable water demand from consumers. However, there are not many economic studies carried out on the cost of supplying stormwater to consumers. The study reported in this paper makes an effort to estimate the cost of supplying the stormwater to consumers using a case study from Gosford Local Government Area (GLGA). A significant finding of this study is that the larger urbanised catchments are the most suitable locations for stormwater harvesting projects. The results obtained indicate that the cost of supplying treated stormwater for non-potable purposes varied between $3/kL and $5/kL, which is significantly higher than the cost of town water supply. In depth analysis revealed that, the major component of the capital cost is attributed to the cost of distribution system. Therefore, in areas that are already serviced by dual reticulation, it is possible that the cost of supplying stormwater would be equal to or lower than that of the existing town water supply. In addition, further refinement of cost functions can lead to more realistic $/kL values for the water harvested from stormwater.

Hagelstein, B, Abolhasan, M, Franklin, D & Safaei, F 2013, 'Improving fairness in IEEE 802.11 networks using MAC layer opportunistic retransmission', COMPUTER NETWORKS, vol. 57, no. 17, pp. 3410-3427.
View/Download from: Publisher's site
View description>>

This paper introduces DAFMAC (Decode And Forward MAC), a scalable opportunistic cooperative retransmission enhancement for the IEEE 802.11 MAC protocol which operates without the need for additional explicit control signalling. Distributed opportunistic retransmission algorithms rely on selecting a single suitable relay without direct arbitration between nodes. Simulations show that DAFMAC offers a significant improvement in fairness for both throughput and jitter, giving multiple parallel data flows a more equal opportunity to utilise the channel. DAFMAC cooperative retransmissions are shown to reduce node energy consumption for a given throughput. Further, the DAFMAC relay selection algorithm is shown to scale very well in terms of complexity and memory requirements in comparison to other cooperative retransmission schemes. © 2013 Elsevier B.V. All rights reserved.

Hai, FI, Yamamoto, K, Nakajima, F, Fukushi, K, Nghiem, LD, Price, WE & Jin, B 2013, 'Degradation of azo dye acid orange 7 in a membrane bioreactor by pellets and attached growth of Coriolus versicolour', Bioresource Technology, vol. 141, pp. 29-34.
View/Download from: Publisher's site

Hamed, A & Lee, T 2013, 'Rank and fooling set size'.
View description>>

Say that A is a Hadamard factorization of the identity I_n of size n if theentrywise product of A and the transpose of A is I_n. It can be easily seenthat the rank of any Hadamard factorization of the identity must be at leastsqrt{n}. Dietzfelbinger et al. raised the question if this bound can beachieved, and showed a boolean Hadamard factorization of the identity of rankn^{0.792}. More recently, Klauck and Wolf gave a construction of Hadamardfactorizations of the identity of rank n^{0.613}. Over finite fields, Friesenand Theis resolved the question, showing for a prime p and r=p^t+1 a Hadamardfactorization of the identity A of size r(r-1)+1 and rank r over F_p. Here we resolve the question for fields of zero characteristic, up to aconstant factor, giving a construction of Hadamard factorizations of theidentity of rank r and size (r+1)r/2. The matrices in our construction areblockwise Toeplitz, and have entries whose magnitudes are binomialcoefficients.

Hammadi, A, Hussain, OK, Dillon, T & Hussain, FK 2013, 'A framework for SLA management in cloud computing for informed decision making', CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, vol. 16, no. 4, pp. 961-977.
View/Download from: Publisher's site
View description>>

In cloud computing, service providers offer cost-effective and on-demand IT services to service users on the basis of Service Level Agreements (SLAs). However the effective management of SLAs in cloud computing is essential for the service users to ensure that they achieve the desired outcomes from the formed service. In this paper, we introduce a SLA management framework that will enable service users to select the best available service provider on the basis of its reputation and then monitor the run time performance of the service provider to determine whether or not it will fulfill its promise defined in the SLA. Such analysis will assist the service user to make an informed decision about the continuation of service with the service provider.

Han, M-F, Liao, S-H, Chang, J-Y & Lin, C-T 2013, 'Dynamic group-based differential evolution using a self-adaptive strategy for global optimization problems', Applied Intelligence, vol. 39, no. 1, pp. 41-56.
View/Download from: Publisher's site
View description>>

This paper describes a dynamic group-based differential evolution (GDE) algorithm for global optimization problems. The GDE algorithm provides a generalized evolution process based on two mutation operations to enhance search capability. Initially, all individuals in the population are grouped into a superior group and an inferior group based on their fitness values. The two groups perform different mutation operations. The local mutation model is applied to individuals with better fitness values, i.e., in the superior group, to search for better solutions near the current best position. The global mutation model is applied to the inferior group, which is composed of individuals with lower fitness values, to search for potential solutions. Subsequently, the GDE algorithm employs crossover and selection operations to produce offspring for the next generation. In this paper, an adaptive tuning strategy based on the well-known 1/5th rule is used to dynamically reassign the group size. It is thus helpful to trade off between the exploration ability and the exploitation ability. To validate the performance of the GDE algorithm, 13 numerical benchmark functions are tested. The simulation results indicate that the approach is effective and efficient. © 2012 Springer Science+Business Media New York.

Hao, L, Di, HS, Gong, DY, Wei, DB & Jiang, ZY 2013, 'Advanced Flatness Control Strategies for Multivariable Optimisation Flatness Control System of Foil Rolling Mill', Advanced Materials Research, vol. 655-657, pp. 1450-1455.
View/Download from: Publisher's site
View description>>

In cold strip or foil rolling, flatness control is an integral part of modern mill. This paper introduces two typical flatness control systems, pattern recognisation flatness control system and multivariable flatness control. It is found that the latter is effective and has wider application fields. The FEM models of its core parameters, flatness actuator efficiency, are constructed. Influencing factors, such as the rolling force, bending force as well as the tilting force are discussed. Control strategies are proposed for foil rolling. The results demonstrate that the control strategies can reduce flatness error and improve flatness quality.

Hassall, TE, Stappers, BW, Weltevrede, P, Hessels, JWT, Alexov, A, Coenen, T, Karastergiou, A, Kramer, M, Keane, EF, Kondratiev, VI, van Leeuwen, J, Noutsos, A, Pilia, M, Serylak, M, Sobey, C, Zagkouris, K, Fender, R, Bell, ME, Broderick, J, Eislöffel, J, Falcke, H, Grießmeier, J-M, Kuniyoshi, M, Miller-Jones, JCA, Wise, MW, Wucknitz, O, Zarka, P, Asgekar, A, Batejat, F, Bentum, MJ, Bernardi, G, Best, P, Bonafede, A, Breitling, F, Brüggen, M, Butcher, HR, Ciardi, B, de Gasperin, F, de Reijer, J-P, Duscha, S, Fallows, RA, Ferrari, C, Frieswijk, W, Garrett, MA, Gunst, AW, Heald, G, Hoeft, M, Juette, E, Maat, P, McKean, JP, Norden, MJ, Pandey-Pommier, M, Pizzo, R, Polatidis, AG, Reich, W, Röttgering, H, Sluman, J, Tang, Y, Tasse, C, Vermeulen, R, van Weeren, RJ, Wijnholds, SJ & Yatawatta, S 2013, 'Differential frequency-dependent delay from the pulsar magnetosphere', Astronomy & Astrophysics, vol. 552, pp. A61-A61.
View/Download from: Publisher's site

Hasselmann, V-R, Maschek, T, Bohnen, F & Deuse, J 2013, 'Taktgebundene Fließmontage in der Großgerätemontage', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 1-2, pp. 32-36.
View/Download from: Publisher's site
View description>>

Kurzfassung Die Vorgehensweise einer taktgebundenen Montage im Einzelstückfluss hat sich als Konzept zur Organisation von Produktionsabläufen in der Serienfertigung bewährt. In der Großgerätemontage kommt das Prinzip einer taktgebundenen Montage im Einzelstückfluss angesichts der vorherrschenden Randbedingungen bislang nur selten bzw. eingeschränkt zum Einsatz. Dieser Beitrag diskutiert Produkt- und Mitarbeiterfluss als Form der Montageorganisation und stellt diese anhand eines reifegradorientierten Implementierungsleitfadens vor.

Heitor, A, Indraratna, B & Rujikiatkamjorn, C 2013, 'Laboratory study of small-strain behavior of a compacted silty sand', Canadian Geotechnical Journal, vol. 50, no. 2, pp. 179-188.
View/Download from: Publisher's site
View description>>

Small-strain behavior is a key indicator for assessing the performance of compacted fills. Compaction conditions, i.e., initial moisture content and applied energy, govern compaction effectiveness and thus, the structure and matric suction of compacted soil. This paper presents an experimental study of the small-strain behavior of compacted silty sand prepared with different compaction conditions. Specimens with varying initial moisture contents and compaction energies were tested with bender elements to determine the small-strain shear modulus (G0), while the post-compaction matric suction was measured using the filter paper method and tensiometer. The experimental data suggest a pronounced relationship between G0and the degree of saturation (Sr) of the as-compacted soil specimens. X-ray computed tomography (CT) scans were performed to examine structural changes of selected specimens upon compaction. The laboratory results are also examined in light of common end-product specifications, which show that it is beneficial to compact the soil slightly dry of optimum moisture content from the modulus point of view.

Henning, SM, Wang, P, Abgaryan, N, Vicinanza, R, de Oliveira, DM, Zhang, Y, Lee, R, Carpenter, CL, Aronson, WJ & Heber, D 2013, 'Phenolic acid concentrations in plasma and urine from men consuming green or black tea and potential chemopreventive properties for colon cancer', Molecular Nutrition & Food Research, vol. 57, no. 3, pp. 483-493.
View/Download from: Publisher's site
View description>>

ScopeTea polyphenols are metabolized by the colonic microflora yielding phenolic metabolites, which may contribute to the health benefits of tea. We determined the serum and urine concentrations of phenolic acids, hippuric acid, and polyhydroxyphenyl‐γ‐valerolactones during green tea (GT) and black tea (BT) administration. The effects of (–)‐epigallocatechin gallate (EGCG) and 3,4‐dihydroxyphenylacetic acid (3,4‐DHPAA) alone and in combination on bioavailability, intracellular metabolism, and antiproliferative activity were determined in HCT‐116 colon cancer cells.Methods and resultsThe concentration of phenolic metabolites was quantified by HPLC with electrochemical detection and MS. Urine concentrations of 4‐hydroxyphenylacetic acid (4‐HPAA), 3‐hydroxyphenylacetic acid (3‐HPAA), and polyhydroxy‐γ‐valerolactones were increased significantly in men drinking GT compared to control. Urine concentration of 3‐O‐methylgallic acid (3OMGA) was significantly increased in men drinking BT compared to control. Serum 3,4‐DHPAA was significantly increased after consumption of GT and BT and 4‐HPAA after GT consumption. In vitro treatment of HCT‐116 colon cancer cells with 3,4‐DHPAA and EGCG exhibited an additive antiproliferative effect, while methylation of 3,4‐DHPAA was significantly decreased. 3OMGA exhibited the strongest antiproliferative activity among the phenolic acids.ConclusionThe consumption of both, GT and BT, was associated with a significant increase in urinary and serum phenolic acids.

Herman, G, Zhang, B, Wang, Y, Ye, G & Chen, F 2013, 'Mutual information-based method for selecting informative feature sets', Pattern Recognition, vol. 46, no. 12, pp. 3315-3327.
View/Download from: Publisher's site

Hermsen, W, Hessels, JWT, Kuiper, L, van Leeuwen, J, Mitra, D, de Plaa, J, Rankin, JM, Stappers, BW, Wright, GAE, Basu, R, Alexov, A, Coenen, T, Grießmeier, J-M, Hassall, TE, Karastergiou, A, Keane, E, Kondratiev, VI, Kramer, M, Kuniyoshi, M, Noutsos, A, Serylak, M, Pilia, M, Sobey, C, Weltevrede, P, Zagkouris, K, Asgekar, A, Avruch, IM, Batejat, F, Bell, ME, Bell, MR, Bentum, MJ, Bernardi, G, Best, P, Bîrzan, L, Bonafede, A, Breitling, F, Broderick, J, Brüggen, M, Butcher, HR, Ciardi, B, Duscha, S, Eislöffel, J, Falcke, H, Fender, R, Ferrari, C, Frieswijk, W, Garrett, MA, de Gasperin, F, de Geus, E, Gunst, AW, Heald, G, Hoeft, M, Horneffer, A, Iacobelli, M, Kuper, G, Maat, P, Macario, G, Markoff, S, McKean, JP, Mevius, M, Miller-Jones, JCA, Morganti, R, Munk, H, Orrú, E, Paas, H, Pandey-Pommier, M, Pandey, VN, Pizzo, R, Polatidis, AG, Rawlings, S, Reich, W, Röttgering, H, Scaife, AMM, Schoenmakers, A, Shulevski, A, Sluman, J, Steinmetz, M, Tagger, M, Tang, Y, Tasse, C, ter Veen, S, Vermeulen, R, van de Brink, RH, van Weeren, RJ, Wijers, RAMJ, Wise, MW, Wucknitz, O, Yatawatta, S & Zarka, P 2013, 'Synchronous X-ray and Radio Mode Switches: A Rapid Global Transformation of the Pulsar Magnetosphere', Science, vol. 339, no. 6118, pp. 436-439.
View/Download from: Publisher's site
View description>>

Pondering Pulsars Pulsars are rapidly rotating, magnetized neutron stars that are powered by the loss of rotational energy. Because their emission is beamed, their light appears to pulse on and off at regular intervals. Changes in radio emission behavior have been observed for a number of pulsars, manifesting themselves as switches between ordered and disordered variations in intensity and pulse shapes, but these changes have not been seen at other wavelengths. Based on simultaneous radio and x-ray observations of pulsar PSR B0943+10, Hermsen et al. (p. 436 ) show that changes in emission state identified in radio measurements show counterpart fluctuations in the strength and temporal behavior of x-rays. Some of these changes were unexpected in their character and physical properties, challenging pulsar emission theories.

Hill, J, Kirby, R & Williams, P 2013, 'Improving the design of dissipative silencers used in HVAC and gas turbine applications', Acoustics Bulletin, vol. 38, no. 4, pp. 43-46.
View description>>

James Hill, AAF, Ray Kirby and Paul Williams from School of Engineering and Design, Brunel University, discuss how efforts are being made to improve the design of dissipative silencers used in HVAC and gas turbine applications. Two Knowledge Transfer Partnership (KTP) projects have been undertaken jointly by Brunel University and Caice Acoustic Air Movement Ltd., and Brunel University and AAF Ltd., to assess the suitability of these traditional design methods in a modern engineering environment. AAF and Caice have commissioned test rigs in accordance with ISO 7235 to achieve these objectives. AAF has utilized a reverberation room as the termination condition and measurement location whereas Caice has used an in-duct measurement with anechoic termination. is a significant undertaking to design and construct a test rig conforming to ISO 7235, with many tests needing to be performed and a large amount of work tweaking the design to meet the criteria set out in ISO 7235.

Hirabayashi, Y, Mahendran, R, Koirala, S, Konoshima, L, Yamazaki, D, Watanabe, S, Kim, H & Kanae, S 2013, 'Global flood risk under climate change', Nature Climate Change, vol. 3, no. 9, pp. 816-821.
View/Download from: Publisher's site
View description>>

A warmer climate would increase the risk of floods. So far, only a few studies have projected changes in floods on a global scale. None of these studies relied on multiple climate models. A few global studies have started to estimate the exposure to flooding (population in potential inundation areas) as a proxy of risk, but none of them has estimated it in a warmer future climate. Here we present global flood risk for the end of this century based on the outputs of 11 climate models. A state-of-the-art global river routing model with an inundation scheme was employed to compute river discharge and inundation area. An ensemble of projections under a new high-concentration scenario demonstrates a large increase in flood frequency in Southeast Asia, Peninsular India, eastern Africa and the northern half of the Andes, with small uncertainty in the direction of change. In certain areas of the world, however, flood frequency is projected to decrease. Another larger ensemble of projections under four new concentration scenarios reveals that the global exposure to floods would increase depending on the degree of warming, but interannual variability of the exposure may imply the necessity of adaptation before significant warming. © 2013 Macmillan Publishers Limited. All rights reserved.

Ho-Pham, LT, Nguyen, ND & Nguyen, TV 2013, 'Quantification of the relative contribution of estrogen to bone mineral density in men and women', BMC Musculoskeletal Disorders, vol. 14, no. 1.
View/Download from: Publisher's site
View description>>

Background: The study quantified the relative contributions of estrogen (E2) and total testosterone (TT) to variation in bone mineral density in men and women. Methods: This was a cross-sectional study which involved 200 men and 415 women aged 18 to 89 years. BMD at the lumbar spine (LS) and femoral neck (FN) was measured by DXA. Serum levels of E2 and TT were measured by electrochemiluminescence immunoassays. The association between E2, TT, and BMD was analyzed by the multiple linear regression model, adjusting for age and BMI. The contribution of each hormone to the variation in BMD was quantified by the bootstrap method. Results: In women, higher serum levels of E2, but not TT, were significantly associated with greater BMD at the FN (P = 0.001) and LS (P < 0.0001). In men, higher serum levels of E2 were independently associated with greater FNBMD (P = 0.008) and LSBMD (P = 0.086). In the multiple linear regression model, age, body weight and E2 accounted for 50-55% variance in FNBMD, and 25% (in men) and 48% (in women) variance in LSBMD. Variation in E2 accounted for 2.5% (95% CI 0.4 - 7.8%) and 11.3% (95% CI 8.1 - 15.3%) variation in FNBMD in men and women, respectively. Moreover, E2 contributed 1.2% (95% CI 0.1 - 5.8%) and 11.7% (95% CI 8.5 - 15.9%) variation in LSBMD in men and women, respectively. Conclusions: Estrogen is more important than testosterone in the determination of age-related bone mineral density men and women of Vietnamese background. However, the relative contributions of estrogen to bone mineral density in men are likely modest

Hoque, MA-A, Saika, U, Sarder, BC & Biswas, KK 2013, 'Environmental and Socio-economic Impacts of Salinity Intrusion in the Coastal Area: A Case Study on Munshigong Union, Shymnagor, Satkhira', Jahangirnagar University Environmental Bulletin, vol. 2, pp. 41-49.
View/Download from: Publisher's site
View description>>

Jahangirnagar University Environmental Bulletin, Vol.2, 41-49, 2013 DOI: http://dx.doi.org/10.3329/jueb.v2i0.16329

Horanont, T, Phithakkitnukoon, S, Leong, TW, Sekimoto, Y & Shibasaki, R 2013, 'Weather Effects on the Patterns of People's Everyday Activities: A Study Using GPS Traces of Mobile Phone Users', PLOS ONE, vol. 8, no. 12, pp. 1-14.
View/Download from: Publisher's site
View description>>

This study explores the effects that the weather has on people's everyday activity patterns. Temperature, rainfall, and wind speed were used as weather parameters. People's daily activity patterns were inferred, such as place visited, the time this took place, the duration of the visit, based on the GPS location traces of their mobile phones overlaid upon Yellow Pages information. Our analysis of 31,855 mobile phone users allowed us to infer that people were more likely to stay longer at eateries or food outlets, and (to a lesser degree) at retail or shopping areas when the weather is very cold or when conditions are calm (non-windy). When compared to people's regular activity patterns, certain weather conditions affected people's movements and activities noticeably at different times of the day. On cold days, people's activities were found to be more diverse especially after 10AM, showing greatest variations between 2PM and 6PM. A similar trend is observed between 10AM and midnight on rainy days, with people's activities found to be most diverse on days with heaviest rainfalls or on days when the wind speed was stronger than 4 km/h, especially between 10AM-1AM. Finally, we observed that different geographical areas of a large metropolis were impacted differently by the weather. Using data of urban infrastructure to characterize areas, we found strong correlations between weather conditions upon people's accessibility to trains. This study sheds new light on the influence of weather conditions on human behavior, in particular the choice of daily activities and how mobile phone data can be used to investigate the influence of environmental factors on urban dynamics. © 2013 Horanont et al.

Hossain, J, Mahmud, A, Roy, NK & Pota, HR 2013, 'Enhancement of Transient Stability Limit and Voltage Regulation with Dynamic Loads Using Robust Excitation Control', International Journal of Emerging Electric Power Systems, vol. 14, no. 6, pp. 561-570.
View/Download from: Publisher's site
View description>>

AbstractIn stressed power systems with large induction machine component, there exist undamped electromechanical modes and unstable monotonic voltage modes. This article proposes a sequential design of an excitation controller and a power system stabiliser (PSS) to stabilise the system. The operating region, with induction machines in stressed power systems, is often not captured using a linearisation around an operating point, and to alleviate this situation a robust controller is designed which guarantees stable operation in a large region of operation. A minimax linear quadratic Gaussian design is used for the design of the supplementary control to automatic voltage regulators, and a classical PSS structure is used to damp electromechanical oscillations. The novelty of this work is in proposing a method to capture the unmodelled nonlinear dynamics as uncertainty in the design of the robust controller. Tight bounds on the uncertainty are obtained using this method which enables high-performance controllers. An IEEE benchmark test system has been used to demonstrate the performance of the designed controller.

Hossain, MA, Saleem, M, Saha, SC & Nakayama, A 2013, 'Conduction-radiation effect on natural convection flow in fluid-saturated non-Darcy porous medium enclosed by non-isothermal walls', Applied Mathematics and Mechanics, vol. 34, no. 6, pp. 687-702.
View/Download from: Publisher's site

Hossain, MD, Ngo, H & Guo, W 2013, 'Introductory of Microsoft Excel SOLVER function-Spreadsheet method for isotherm and kinetics modelling of metals biosorption in water and wastewater', Journal of Water Sustainability, vol. 3, no. 4, pp. 223-237.
View description>>

This paper aims to introduce a simple method to run a complicated non-linear analysis of isotherm and kinetics models for metals biosorption based on input functions of spreadsheets. A robust method is demonstrated here to exploit the `SOLVER function available in Microsoft (MS) Excel spreadsheet. It is more economic and user friendly than specialized computer programmes. In this study, an iterative method was proposed to produce the optimal goodness of fit between experimental data and predicted data. This was described the implementing method of a set of real data (garden grass as biosorbent) and the predicted results were compared with linear analysis and MATLAB analysis. The R2 values found from MS Excel spreadsheet were 0.995, 0.999 and 0.996 while being 0.997, 1.000 and 0.999 by MATLAB for copper, lead and cadmium adsorption, respectively onto garden grass. The prediction of maximum adsorption, qm by excel (59.336, 63.663 and 42.310 mg/g) were very similar to MATLAB (59.889, 63.509 and 41.560 mg/g). The predictions of kinetics parameters were also close to MATLAB analysis. Hence, the MS Excel Spreadsheet method could be a handy tool for biosorption models.

Hossain, MJ, Saha, TK, Mithulananthan, N & Pota, HR 2013, 'Control Strategies for Augmenting LVRT Capability of DFIGs in Interconnected Power Systems', IEEE Transactions on Industrial Electronics, vol. 60, no. 6, pp. 2510-2522.
View/Download from: Publisher's site

Hou, HW, Warkiani, ME, Khoo, BL, Li, ZR, Soo, RA, Tan, DS-W, Lim, W-T, Han, J, Bhagat, AAS & Lim, CT 2013, 'Isolation and retrieval of circulating tumor cells using centrifugal forces', Scientific Reports, vol. 3, no. 1, p. 1259.
View/Download from: Publisher's site
View description>>

Presence and frequency of rare circulating tumor cells (CTCs) in bloodstreams of cancer patients are pivotal to early cancer detection and treatment monitoring. Here, we use a spiral microchannel with inherent centrifugal forces for continuous, size-based separation of CTCs from blood (Dean Flow Fractionation (DFF)) which facilitates easy coupling with conventional downstream biological assays. Device performance was optimized using cancer cell lines (> 85% recovery), followed by clinical validation with positive CTCs enumeration in all samples from patients with metastatic lung cancer (n = 20; 5-88 CTCs per mL). The presence of CD133⁺ cells, a phenotypic marker characteristic of stem-like behavior in lung cancer cells was also identified in the isolated subpopulation of CTCs. The spiral biochip identifies and addresses key challenges of the next generation CTCs isolation assay including antibody independent isolation, high sensitivity and throughput (3 mL/hr); and single-step retrieval of viable CTCs.

Hou, JJ, Wang, F, Han, N, Zhu, H, Fok, K, Lam, W, Yip, S, Hung, T, Lee, JE-Y & Ho, JC 2013, 'Diameter dependence of electron mobility in InGaAs nanowires', Applied Physics Letters, vol. 102, no. 9.
View/Download from: Publisher's site
View description>>

In this work, we present the diameter dependent electron mobility study of InGaAs nanowires (NWs) grown by gold-catalyzed vapor transport method. These single crystalline nanowires have an In-rich stoichiometry (i.e., In0.7Ga0.3As) with dispersed diameters from 15 to 55 nm. The current-voltage behaviors of fabricated nanowire field-effect transistors reveal that the aggressive scaling of nanowire diameter will induce a degradation of electron mobility, while low-temperature measurements further decouple the effects of surface/interface traps and phonon scattering, highlighting the impact of surface roughness scattering on the electron mobility. This work suggests a careful design consideration of nanowire dimension is required for achieving the optimal device performances.

Hu, H, Jiang, X, Li, Y, Wang, J & Qian, S 2013, 'Integrated design and controllability test of piezoelectric self-powered MR absorber', Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis, vol. 33, no. 4, pp. 712-718.
View description>>

Aiming at the piezoelectric self-powered MR absorber, the feasibility of structure composite and function integration is studied, by combining the semi-active vibration control device based on MR technology with energy harvesting equipment based on piezoelectric vibrator. A theory model of piezoelectric self-powered MR absorber is established. Then, its magnetic circuit structure of MR absorber is optimized and designed by using the numerical simulation method, its influences of piezoelectric vibrator's geometric parameters on the outputting voltage of the vibration energy harvesting equipment are also analyzed, and the vibration energy harvesting circuit is simulated and tested, respectively. The simulation results show that the current of 1.67 A could be provided into the coil of MR absorber once the ring-shaped piezoelectric vibrator is excited by AC voltage source. Finally, an experimental platform is constructed in order to test its controllability of the piezoelectric self-powered MR absorber. The experimental results show that the ring-shaped piezoelectric vibrator could provide an enough amount of electrical energy for the piezoelectric self-powered MR absorber's semi-active vibration control, and its damping force achieves 2.4 times before and after the on-off controlling strategy.

Hu, J, Zhu, J, Lei, G, Platt, G & Dorrell, DG 2013, 'Multi-Objective Model-Predictive Control for High-Power Converters', IEEE TRANSACTIONS ON ENERGY CONVERSION, vol. 28, no. 3, pp. 652-663.
View/Download from: Publisher's site
View description>>

This paper presents a multi-objective model-predictive control (MOMPC) strategy for controlling converters in high-power applications. The controller uses the system model to predict the system behavior in each sampling interval for each voltage vector,

Hu, M, Fletcher, J, McCahon, E, Catchpoole, D, Zhang, GY, Wang, YM, Algar, EM & Alexander, SI 2013, 'Bilateral Wilms Tumor and Early Presentation in Pediatric Patients Is Associated with the Truncation of the Wilms Tumor 1 Protein', The Journal of Pediatrics, vol. 163, no. 1, pp. 224-229.
View/Download from: Publisher's site
View description>>

Objectives: To investigate the frequency of constitutional Wilms tumor 1 gene (WT1) abnormalities in children with bilateral Wilms tumor (WT) and the age of tumor onset in patients with a mutation. Study design: Eight patients with bilateral WT were studied. High-resolution melting and direct sequencing were used to screen for the WT1 gene. Western blotting was performed to determine whether the identified mutations were associated with expressed truncated WT1 protein. Results: The median age of tumor onset in patients with a mutation in the WT1 was lower (10 months) than in those without a mutation (39 months). Three novel heterozygous nonsense mutations were identified in exon 8 in peripheral blood from 3 individuals, whereas all 3 tumor tissues lacked the wild-type allele. All mutations led to a premature stop codon with truncation of the WT1 protein. In 1 patient, a truncated form of WT1 protein was identified, suggesting that development of the WT may have resulted from expression of an abnormal protein. Four distinct silent single-nucleotide polymorphisms (SNPs) were detected. All 3 patients with a pathogenic WT1 mutation had 2 synonymous SNPs, whereas only 1 of the remaining 5 patients had a single synonymous SNP (P <.05). Conclusions: Bilateral WT are associated with early presentation in pediatric patients and a high frequency of WT1 nonsense mutations in exon 8. Silent SNPs may also be involved in the development of WT. © 2013 Mosby Inc. All rights reserved.

Huang, M, Wang, H, Sheng, D & Liu, Y 2013, 'Rotational–translational mechanism for the upper bound stability analysis of slopes with weak interlayer', Computers and Geotechnics, vol. 53, pp. 133-141.
View/Download from: Publisher's site

Huang, W & Alem, L 2013, 'Gesturing in the air: Supporting full mobility in remote collaboration on physical tasks', Journal of Universal Computer Science, vol. 19, no. 8, pp. 1158-1174.
View description>>

Many collaborative situations require that a remote helper guides a local worker in performing manipulations of physical objects in the real world (physical tasks). Existing systems supporting such collaboration often confine collaborators in fixed desktop settings. Therefore they have limited usefulness in situations in which collaborators are mobile and/or desktop settings are not feasible. In this paper, we present HandsInAir, a wearable system for remote guidance. This system is designed to support mobility of the collaborators and provide easy access to remote expertise. HandsInAir draws on the richness of hand gestures for remote guiding and implements a novel approach that supports unmediated remote gestures and allows the helper to perform natural gestures by hands without the need of a physical support. We review related work, describe technical implementation, and present a usability study demonstrating the usefulness and usability of HandsInAir. © J.UCS.

Huang, W, Alem, L & Albasri, J 2013, 'Prototyping and Evaluating a Wearable System for Mobile Distributed Collaboration', Communications and Network, vol. 05, no. 03, pp. 554-562.
View/Download from: Publisher's site

Huang, Y & Huang, X 2013, 'Detection of Temporally Correlated Signals over Multipath Fading Channels', IEEE Transactions on Wireless Communications, vol. 12, no. 3, pp. 1290-1299.
View/Download from: Publisher's site
View description>>

An optimal detection method along with two reduced-complexity methods, modified energy detection (MED) and equal gain detection (EGD), under low signal-to-noise ratio (SNR) condition are proposed in this paper for detection of temporally correlated signals over multipath fading channels. By incorporating resolvable multipaths and multiple antennas into system model, these detection methods are derived based on maximum log-likelihood ratio (LLR) test principal and using the same low SNR LLR approximation. Analytical performance expressions for MED and EGD are also given. Simulation results show that, when signal exhibits temporal correlation, the proposed optimal detection and EGD achieve better performance than conventional generalized likelihood ratio test through utilizing multipath propagation. Further, the proposed MED is superior to conventional energy detection if it a priori signal temporal correlation information is exploited. It is also revealed that multipath tap correlation can have either constructive or destructive effect to spectrum sensing. The proposed EGD is proven to be a practical technique for reliable spectrum sensing over multipath fading channels as it approaches optimal performance with low complexity. © 2002-2012 IEEE.

Huang, Z, Eagles, M, Porter, S, Sorte, EG, Billet, B, Corey, RL, Conradi, MS & Zhao, J-C 2013, 'Thermolysis and solid state NMR studies of NaB₃H₈, NH₃B₃H₇, and NH₄B₃H₈', Dalton Trans., vol. 42, no. 3, pp. 701-708.
View/Download from: Publisher's site

Huang, Z, Lingam, HK, Chen, X, Porter, S, Du, A, Woodard, PM, Shore, SG & Zhao, J-C 2013, 'Synthesis, structural analysis, and thermal decomposition studies of [(NH3)2BH2]B3H8', RSC Advances, vol. 3, no. 20, pp. 7460-7460.
View/Download from: Publisher's site

Hussain, S, Basu, A, Wang, R & Hamilton, TJ 2013, 'Delay Learning Architectures for Memory and Classification', Neurocomputing, vol. 138, pp. 14-26.
View/Download from: Publisher's site
View description>>

We present a neuromorphic spiking neural network, the DELTRON, that canremember and store patterns by changing the delays of every connection asopposed to modifying the weights. The advantage of this architecture overtraditional weight based ones is simpler hardware implementation withoutmultipliers or digital-analog converters (DACs) as well as being suited totime-based computing. The name is derived due to similarity in the learningrule with an earlier architecture called Tempotron. The DELTRON can remembermore patterns than other delay-based networks by modifying a few delays toremember the most 'salient' or synchronous part of every spike pattern. Wepresent simulations of memory capacity and classification ability of theDELTRON for different random spatio-temporal spike patterns. The memorycapacity for noisy spike patterns and missing spikes are also shown. Finally,we present SPICE simulation results of the core circuits involved in areconfigurable mixed signal implementation of this architecture.

Hussan, MJ, Hassan, MH, Kalam, MA & Memon, LA 2013, 'Tailoring key fuel properties of diesel–biodiesel–ethanol blends for diesel engine', Journal of Cleaner Production, vol. 51, pp. 118-125.
View/Download from: Publisher's site

Iacobelli, M, Haverkorn, M, Orrú, E, Pizzo, RF, Anderson, J, Beck, R, Bell, MR, Bonafede, A, Chyzy, K, Dettmar, R-J, Enßlin, TA, Heald, G, Horellou, C, Horneffer, A, Jurusik, W, Junklewitz, H, Kuniyoshi, M, Mulcahy, DD, Paladino, R, Reich, W, Scaife, A, Sobey, C, Sotomayor-Beltran, C, Alexov, A, Asgekar, A, Avruch, IM, Bell, ME, van Bemmel, I, Bentum, MJ, Bernardi, G, Best, P, Bırzan, L, Breitling, F, Broderick, J, Brouw, WN, Brüggen, M, Butcher, HR, Ciardi, B, Conway, JE, de Gasperin, F, de Geus, E, Duscha, S, Eislöffel, J, Engels, D, Falcke, H, Fallows, RA, Ferrari, C, Frieswijk, W, Garrett, MA, Grießmeier, J, Gunst, AW, Hamaker, JP, Hassall, TE, Hessels, JWT, Hoeft, M, Hörandel, J, Jelic, V, Karastergiou, A, Kondratiev, VI, Koopmans, LVE, Kramer, M, Kuper, G, van Leeuwen, J, Macario, G, Mann, G, McKean, JP, Munk, H, Pandey-Pommier, M, Polatidis, AG, Röttgering, H, Schwarz, D, Sluman, J, Smirnov, O, Stappers, BW, Steinmetz, M, Tagger, M, Tang, Y, Tasse, C, Toribio, C, Vermeulen, R, Vocks, C, Vogt, C, van Weeren, RJ, Wise, MW, Wucknitz, O, Yatawatta, S, Zarka, P & Zensus, A 2013, 'Studying Galactic interstellar turbulence through fluctuations in synchrotron emission', Astronomy & Astrophysics, vol. 558, pp. A72-A72.
View/Download from: Publisher's site

Iacopi, F, Brock, RE, Iacopi, A, Hold, L & Dauskardt, RH 2013, 'Evidence of a highly compressed nanolayer at the epitaxial silicon carbide interface with silicon', Acta Materialia, vol. 61, no. 17, pp. 6533-6540.
View/Download from: Publisher's site

Iacopi, F, Walker, G, Wang, L, Malesys, L, Ma, S, Cunning, BV & Iacopi, A 2013, 'Orientation-dependent stress relaxation in hetero-epitaxial 3C-SiC films', Applied Physics Letters, vol. 102, no. 1, pp. 011908-011908.
View/Download from: Publisher's site
View description>>

Residual stresses in epitaxial 3C-SiC films on silicon, for chosen growth conditions, appear determined by their growth orientation. Stress evaluation locally with Raman spectroscopy, and across a 150 mm wafer with curvature measurements, indicate that thin films can be grown on Si(100) with residual tensile stresses as low as 150 MPa. However, films on Si(111) retain a considerably higher stress, around 900 MPa, with only minor decrease versus film thickness. Stacking faults are indeed geometrically a less efficient relief mechanism for the biaxial strain of SiC films grown on Si(111) with 〈111〉 orientation. Residual stresses can be tuned by the epitaxial process temperatures.

Iji, A, Zhu, X & Heimlich, M 2013, 'A 4.5 mW 3–5 GHz low‐noise amplifier in 0.25‐μm silicon‐on‐insulator CMOS process for power‐constraint application', Microwave and Optical Technology Letters, vol. 55, no. 1, pp. 89-93.
View/Download from: Publisher's site
View description>>

AbstractA 1.5 V 4.5 mW 3–5 GHz low‐noise amplifier (LNA) suitable for power‐constraint application is implemented in a 0.25‐μm silicon‐on‐insulator CMOS process.The designed LNA with good input and output impedance matching exhibits gain of 10.3 dB and 2–2.9 dB noise figure within the 3–5 GHz band. Moreover, the −3 dB bandwidth of the presented LNA is insensitive to process corner variations. A third‐order input intercept point of −5 dBm is also achieved for the LNA at 3.6 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:89–93, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27262

Iji, A, Zhu, X & Heimlich, M 2013, 'Low power, high gain, low noise amplifier (LNA) for ultra wide‐band applications', Microwave and Optical Technology Letters, vol. 55, no. 6, pp. 1399-1401.
View/Download from: Publisher's site
View description>>

AbstractOne of the important components of a receiver is the low noise amplifier (LNA). The challenges of LNA design include ability to achieve high gain, low noise figure, and better linearity at low power consumption within the required frequency. In this article, our design is based on Impulse Response (IR) Ultra Wide‐Band (UWB) transceiver operating at 3.1–4.6 GHz. Hence, the LNA designed has been optimized for low noise figure, considerably high gain and better linearity at low power consumption, which make it suitable for implantable radio application. The process technology used here is 0.25 μm CMOS Silanna process. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1399–1401, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27588

Imran, A, Masjuki, HH, Kalam, MA, Varman, M, Hasmelidin, M, Mahmud, KAHA, Shahir, SA & Habibullah, M 2013, 'Study of Friction and Wear Characteristic of Jatropha Oil Blended Lube Oil', Procedia Engineering, vol. 68, pp. 178-185.
View/Download from: Publisher's site

Imran, A, Varman, M, Masjuki, HH & Kalam, MA 2013, 'Review on alcohol fumigation on diesel engine: A viable alternative dual fuel technology for satisfactory engine performance and reduction of environment concerning emission', Renewable and Sustainable Energy Reviews, vol. 26, pp. 739-751.
View/Download from: Publisher's site

Indraratna, B & Nimbalkar, S 2013, 'Closure to “Stress-Strain Degradation Response of Railway Ballast Stabilized with Geosynthetics” by Buddhima Indraratna and Sanjay Nimbalkar', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 12, pp. 2233-2233.
View/Download from: Publisher's site

Indraratna, B & Nimbalkar, S 2013, 'Stress-Strain Degradation Response of Railway Ballast Stabilized with Geosynthetics', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 5, pp. 684-700.
View/Download from: Publisher's site

Indraratna, B, Athukorala, R & Vinod, J 2013, 'Estimating the Rate of Erosion of a Silty Sand Treated with Lignosulfonate', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 5, pp. 701-714.
View/Download from: Publisher's site

Indraratna, B, Basack, S & Rujikiatkamjorn, C 2013, 'Numerical Solution of Stone Column–Improved Soft Soil Considering Arching, Clogging, and Smear Effects', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 3, pp. 377-394.
View/Download from: Publisher's site

Indraratna, B, Hussaini, SKK & Vinod, JS 2013, 'The lateral displacement response of geogrid-reinforced ballast under cyclic loading', Geotextiles and Geomembranes, vol. 39, pp. 20-29.
View/Download from: Publisher's site

Indraratna, B, Kianfar, K & Rujikiatkamjorn, C 2013, 'Laboratory Evaluation of Coefficient of Radial Consolidation Based on Pore-Water-Pressure Dissipation and Settlement', GEOTECHNICAL TESTING JOURNAL, vol. 36, no. 1, pp. 107-118.
View/Download from: Publisher's site

Indraratna, B, Ngo, NT & Rujikiatkamjorn, C 2013, 'Deformation of Coal Fouled Ballast Stabilized with Geogrid under Cyclic Load', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 8, pp. 1275-1289.
View/Download from: Publisher's site
View description>>

This paper presents the results of laboratory investigations into the deformation of coal fouled ballast stabilized with geogrid at various degrees of fouling. A novel track process simulation apparatus was used to simulate realistic rail track conditions subjected to cyclic loading, and the void contamination index (VCI) was used to evaluate the level of ballast fouling. The experimental results show that coal fines act as a lubricant, causing grains of ballast to displace and rotate, and as a result, accelerate its deformation. However, coal fines also reduce ballast breakage because of a cushioning effect, that is, by reducing interparticle attrition. The inclusion of geogrid at the interface between the layer of ballast and subballast provides additional internal confinement and particle interlocking via geogrid apertures, which reduces deformation. A threshold value of VCI540% is proposed to assist practitioners for conducting track maintenance. If the level of fouling exceeds this threshold, the geogrid reinforcement significantly decreases its effectiveness and the fouled ballast exhibits a premature dilation. Based on the experimental results, an equation incorporating the VCI was proposed to predict the deformation of fresh and fouled ballast. This equation improves track design and assists in favorable decision support for track maintenance. Additionally, the discrete element method (DEM) was also used to capture the deformation of fouled ballast subjected to cyclic loading, whereas the DEM results were compared with experimental observations © 2013 American Society of Civil Engineers.

Indraratna, B, Nimbalkar, S & Rujikiatkamjorn, C 2013, 'Modernisation of Rail Tracks for Higher Speeds and Greater Freight', International Journal of Railway Technology, vol. 2, no. 3, pp. 1-20.
View/Download from: Publisher's site

INDRARATNA, B, PREMADASA, W & BROWN, ET 2013, 'Shear behaviour of rock joints with unsaturated infill', Géotechnique, vol. 63, no. 15, pp. 1356-1360.
View/Download from: Publisher's site
View description>>

Behaviour of soil-infilled rock joints has significant importance with respect to the strength of fractured rock mass. The presence of even a small amount of fine-grained infill material within a joint can reduce its shear strength considerably, depending on the degree of saturation of infill. Therefore, it is crucial to examine how the infill material can adversely affect the joint shear strength. Previous studies of infilled joints have mainly been focused on idealised regular joint patterns owing to the simplicity and reproducibility in laboratory testing. Current literature on infilled rock joints has also neglected the effect of the degree of saturation of infill on the shear behaviour. In most instances, fully saturated infill has been used or assumed, and the contribution of matric suction on the shear strength of joints having unsaturated infill has not been studied. In this study, a series of triaxial tests on natural joint profiles having joint roughness coefficient (JRC) of 10–12 is carried out at constant moisture content. A semi-empirical model is proposed and validated on the basis of laboratory data.

Indraratna, B, Rujikiatkamjorn, C & Balasubramaniam, AS 2013, 'Ground improvement at the port of Brisbane, Australia using vertical drains and vacuum assisted preloading', Geotechnical Special Publication, no. 230, pp. 540-550.
View description>>

Soft clays in coastal areas have low shear strength and high compressibility. Thus construction activities for infrastructure developments in these deposits often pose geotechnical problems due to large time dependent settlements and lateral movements. Ground improvement techniques are adopted to reduce the water content of the soft clays by preloading techniques with vertical drains. Depending on the magnitude of the surcharge used substantial immediate settlement with lateral movements can takes place during preloading. This in turn causes stability problems in the loaded areas. The use of vacuum assisted preloading has now become a popular method in Australia where substantial loads need to be carried out to meet a desired rate of settlement and mitigate undrained failure. To assist the vacuum propagation to significant depths, vertical drains are used in conjunction. At the Port of Brisbane, Australia, vacuum assisted surcharge preloading and conventional surcharge preloading schemes were used to reduce the time required for consolidation and long term settlement in soft Holocene clays. The design of the combined vacuum and surcharge fill system and construction of the embankment are described in this paper. A comparison made on the performance of a combined vacuum surcharge loading system with a standard surcharge fill highlights the clear benefits of vacuum consolidation. Field monitoring data on surface and sub-surface settlements, pore pressures and lateral movements on test embankments performed during construction are presented. An analytical solution for radial consolidation that considers both time-dependent surcharge loading and vacuum pressure to predict the settlement and associated excess pore pressures in soft clay deposits is also proposed. © 2013 American Society of Civil Engineers.

INDRARATNA, B, TENNAKOON, N, NIMBALKAR, S & RUJIKIATKAMJORN, C 2013, 'Behaviour of clay-fouled ballast under drained triaxial testing', Géotechnique, vol. 63, no. 5, pp. 410-419.
View/Download from: Publisher's site
View description>>

Contamination or fouling of rail ballast with external fines, including slurried and pumped subgrade material (e.g. clay and silt), is one of the primary reasons for track deterioration. Fouling causes differential settlement of the track, and also decreases the load-bearing capacity, owing to the reduction in the friction angle of the granular assembly. In certain circumstances, fouled ballast needs to be cleaned or replaced to maintain the desired track stiffness, load-bearing capacity and track alignment, all of which influence safety. This paper presents and discusses the results of a series of large-scale triaxial tests conducted on latite basalt, a rail ballast of volcanic origin, commonly used in Australia. Consolidated drained triaxial tests were conducted under three different levels of confining pressure and varying degrees of clay fouling. Stress–strain degradation characteristics are discussed in detail. This paper also describes the non-linear strength envelope and a novel empirical relationship to capture the detrimental effects of clay fouling on the performance of ballasted tracks.

Irga, PJ, Torpy, FR & Burchett, MD 2013, 'Can hydroculture be used to enhance the performance of indoor plants for the removal of air pollutants?', ATMOSPHERIC ENVIRONMENT, vol. 77, no. 1, pp. 267-271.
View/Download from: Publisher's site
View description>>

The indoor plant, Syngonium podophyllum, grown in both conventional potting mix and hydroculture, was investigated for its capacity to reduce two components of indoor air pollution; volatile organic compounds (VOCs) and CO2. It was found that, with a moderate increase in indoor light intensity, this species removed significant amounts of CO2 from test chambers, removing up to 61%±2.2 of 1000ppmv over a 40min period. It was also found that the hydroculture growth medium facilitated increased CO2 removal over potting mix. The VOC removing potential of hydroculture plants was also demonstrated. Whilst the rate of VOC (benzene) removal was slightly lower for hydroculture-grown plants than those grown in potting mix, both removed 25ppmv from the test chambers within 7 days. The effect of benzene on the community level physiological profiles of rhizospheric bacteria was also assessed. There was less variability in the carbon substrate utilisation profile of the bacterial community from the rhizosphere of hydroculture plants compared to potting mix, however the species present encompassed at least those involved with VOC removal. Overall, we propose that plants grown in hydroculture can simultaneously deplete CO2 and VOCs, and thus may have potential for improving indoor air quality. © 2013.

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Analysis and evaluation of various aspects of solar radiation in the Palestinian territories', Energy Conversion and Management, vol. 73, pp. 57-68.
View/Download from: Publisher's site

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Characterization of PV panel and global optimization of its model parameters using genetic algorithm', Energy Conversion and Management, vol. 73, pp. 10-25.
View/Download from: Publisher's site

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Current utilization of microturbines as a part of a hybrid system in distributed generation technology', Renewable and Sustainable Energy Reviews, vol. 21, pp. 142-152.
View/Download from: Publisher's site

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Design of an optimized photovoltaic and microturbine hybrid power system for a remote small community: Case study of Palestine', Energy Conversion and Management, vol. 75, pp. 271-281.
View/Download from: Publisher's site

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Energy trends in Palestinian territories of West Bank and Gaza Strip: Possibilities for reducing the reliance on external energy sources', Renewable and Sustainable Energy Reviews, vol. 28, pp. 117-129.
View/Download from: Publisher's site

Ismail, MS, Moghavvemi, M & Mahlia, TMI 2013, 'Techno-economic analysis of an optimized photovoltaic and diesel generator hybrid power system for remote houses in a tropical climate', Energy Conversion and Management, vol. 69, pp. 163-173.
View/Download from: Publisher's site

Jamalipour, A, Oppermann, I, Ansari, N & Woodward, G 2013, 'Special Issue on: Cooperative and Distributed Wireless Communications', International Journal of Wireless Information Networks, vol. 20, no. 3, pp. 167-169.
View/Download from: Publisher's site

Jamdagni, A, Tan, Z, He, X, Nanda, P & Liu, RP 2013, 'RePIDS: A multi tier Real-time Payload-based Intrusion Detection System', Computer Networks, vol. 57, no. 3, pp. 811-824.
View/Download from: Publisher's site
View description>>

Intrusion Detection System (IDS) deals with huge amount of network traffic and uses large feature set to discriminate normal pattern and intrusive pattern. However, most of existing systems lack the ability to process data for real-time anomaly detection. In this paper, we propose a 3-Tier Iterative Feature Selection Engine (IFSEng) for feature subspace selection. Principal Component Analysis (PCA) technique is used for the pre-processing of data. Mahalanobis Distance Map (MDM) is used to discover hidden correlations between the features and between the packets. We also propose a novel Real-time Payload-based Intrusion Detection System (RePIDS) that integrates a 3-Tier IFSEng and the MDM approach. Mahalanobis Distance (MD) dissimilarity criterion is used to classify each packet as either a normal or an attack packet. The effectiveness of the proposed RePIDS is evaluated using DARPA 99 dataset and Georgia Institute of Technology attack dataset. The traffic for Web-based application is considered for validating our model. F-value, a criterion, is used to evaluate the detection performance of RePIDS. Experimental results show that RePIDS achieves better performance (high F-values, 0.9958 for DARPA 99 dataset and 0.976 for Georgia Institute of Technology attack dataset respectively, with only 0.85% false alarm rate) and lower computational complexity when compared against two state-of-the-art payload-based intrusion detection systems. Additionally, it has 1.3 time higher throughput in comparison with real scenario of medium sized enterprise network. © 2012 Elsevier B.V. All rights reserved.

Janjua, NK, Hussain, FK & Hussain, OK 2013, 'Semantic information and knowledge integration through argumentative reasoning to support intelligent decision making', INFORMATION SYSTEMS FRONTIERS, vol. 15, no. 2, pp. 167-192.
View/Download from: Publisher's site
View description>>

The availability of integrated, high quality information is a pre-requisite for a decision support system (DSS) to aid in the decision-making process. The introduction of semantic web ensures the seamless integration of information derived from diverse sources and transforms the DSS to an adoptable and flexible Semantic Web-DSS (Web-DSS). However, due to the monotonic nature of the layered development of semantic web, it lacks the capability to represent, reason and integrate incomplete and conflicting information. This, in turn, renders an enterprise incapable of knowledge integration; that is, integration of information about a subject that could potentially be incomplete, inconsistent and distributed among different Web-DSS within or across enterprises. In this article, we address the issues of incomplete and inconsistent semantic information and knowledge integration by using argumentation and argumentation schemes. We discuss the Argumentation-enabled Information Integration Web-DSS (Web@IDSS) along with its syntax and semantics for semantic information integration, and devise a methodology for sharing the results of Web@IDSS in Argument Interchange Format (AIF) format. We also discuss Argumentation-enabled Knowledge Integration Web-DSS (Web@KIDSS) for semantic knowledge integration. We provide formal syntax and semantics for the Web@KIDSS, propose a conceptual framework, and describe it in detail. We present the algorithms for knowledge integration and the prototype application for validation of results

Jayawardhana, M, Zhu, X & Liyanapathirana, R 2013, 'Damage detection of reinforced concrete structures based on the Wiener Filter', Australian Journal of Structural Engineering, vol. 14, no. 1, pp. 57-70.
View/Download from: Publisher's site
View description>>

This paper presents a novel decentralised structural damage detection method based on the Wiener filter. The Wiener filter is customarily used for filtering out the noise that has corrupted a signal, and it is also used for system identification by matching the output of the filter with that of the unknown system. In this study, a damage index based on the mean square error of the Wiener filter is proposed to indicate the damage in structures. The current measurement is the input of the filter and the response of the undamaged structure is the design signal. Another index calculated from the cross correlation responses of neighbouring sensors is used to determine the damage location. An experimental study has been carried out on a reinforced concrete structure. The results show that this method is effective and reliable for structural damage detection and localization. © Institution of Engineers Australia, 2013.

Jayawardhana, M, Zhu, XQ & Liyanapathirana, R 2013, 'An Experimental Study on Damage Detection of Concrete Structures Using Decentralized Algorithms', Advances in Structural Engineering, vol. 16, no. 1, pp. 33-50.
View/Download from: Publisher's site
View description>>

In this paper, an experimental study has been carried out to detect damage on a simply supported two-span reinforced concrete slab. Different crack damages are created by static loads on the slab and impact tests are carried out before and after removing the static loads. Two decentralized damage detection methods – Auto Correlation Function-Cross Correlation Function (ACF-CCF) method and Auto Regressive-Auto Regressive with exogenous input (AR-ARX) method, are used to localize damage from measured responses. The accuracy and sensitivity as well as the effect of sensor location and loading status of the structure were analysed with these two methods. The results show that the ACF-CCF method is more effective in detecting and locating damage than the AR-ARX method. The Novelty Index value of the ACF-CCF method could be a reliable indicator of damage in concrete structures.

Jayawardhana, M, Zhu, XQ, Liyanapathirana, R & Gunawardana, U 2013, 'Compressive Sensing for Structural Damage Detection of Reinforced Concrete Structures', Key Engineering Materials, vol. 569-570, pp. 742-750.
View/Download from: Publisher's site
View description>>

High energy consumption, excessive data storage and transfer requirements are prevailing issues associated with structural health monitoring (SHM) systems, especially with those employing wireless sensors. Data compression is one of the techniques being explored to mitigate the effects of these issues. Compressive sensing (CS) introduces a means of reproducing a signal with a much less number of samples than the Nyquist's rate, reducing the energy consumption, data storage and transfer cost. This paper explores the applicability of CS for SHM, in particular for damage detection and localization. CS is implemented in a simulated environment to compress SHM data. The reconstructed signal is verified for accuracy using structural response data obtained from a series of tests carried out on a reinforced concrete (RC) slab. Results show that the reconstruction was close, but not exact as a consequence of the noise associated with the responses. However, further analysis using the reconstructed signal provided successful damage detection and localization results, showing that although the reconstruction using CS is not exact, it is sufficient to provide the crucial information of the existence and location of damage.

Jebelli Javan, A, Saberi, M, Javaheri Vayeghan, A, Ghaffari Khaligh, S, Rezaian, H & Nejabat, N 2013, 'The effect of dietary Aloe vera gel extract supplementation on lipid peroxidation of broiler breast fillets during frozen storage', Journal of Veterinary Research, vol. 68, no. 3, pp. 233-240.
View description>>

BACKGROUND: To improve the oxidative stability of meat products, the use of the dietary form of natural additives, especially those with plant origin is increasing. Aloe vera plant, the in vitro antioxidant effect of which has been previously discussed, is a potential candidate for this purpose. OBJECTIVES: This study was designed to evaluate the effects of feed supplementation with Aloe vera gel extract on lipid peroxidation of broiler breast fillets during frozen storage. METHODS: Fifty-four 1-day old broilers were allocated into three groups (basal diet as control, basal diet supplemented with 100 and 300 mg/kg methanol extract of Aloe vera gel) and fed for 6 weeks. In the term, chicks were slaughtered and their breast fillets were stored at -20°C for 9 months. Lipid peroxidation was assessed after 1, 3, 6 and 9 months of frozen storage using chemical (PV and TBARS) and sensory evaluations. RESULTS: Results indicated that incorporation of 300 mg/kg Aloe vera gel methanol extract in broiler diets caused the delay of lipid peroxidation in raw breast meat (with 9.6 meq/kg, 92.67 μg/kg and 6.3 in PV, TBARS and Sensory evaluations, respectively) in comparison with control sample (with 15.2 meq/kg, 139.33 μg/kg and 3 in mentioned evaluations) at the last day of the experiment (p<0.05). CONCLUSIONS: This study showed that methanol extract of Aloe vera gel can be considered as a dietary supplementation substance in chicken diet and can delay the oxidative spoilage of chicken breast fillets during frozen spoilage.

Jeong, S & Vigneswaran, S 2013, 'Assessment of biological activity in contact flocculation filtration used as a pretreatment in seawater desalination', Chemical Engineering Journal, vol. 228, no. 1, pp. 976-983.
View/Download from: Publisher's site
View description>>

Contact flocculation filtration (CFF) is a promising pretreatment method to improve feed water quality prior to seawater reverse osmosis (SWRO). CFF is the combination of deep bed filtration and in-line flocculation. To date, CFF has been used mainly as a barrier for particle removal in the filter bed itself with hydrophobic organic compounds removal by flocculation. In this study, the potential of CFF was investigated as a biofilter in addition to its major function of flocculation and particle/floc separation. Two different media (sand; S-CFF and anthracite; A-CFF) were tested on CFF. Bacterial activity in the filter bed was assessed in terms of cell number and adenosine tri-phosphate (ATP) measurement. The microbial community test in the filtration bed was carried out over 50 d in case of sand filter (S-CFF) and 90 d for anthracite filter (A-CFF) filtration periods. With the growth of an active microbial population on the filter bed medium, significant removal of organic compounds, especially low molecular weight (LMW) organics, from the seawater was achieved. The results indicated that CFF functions both as flocculation and separation unit and also as biofilter with moderate efficiency in reducing biofouling potential. The results also showed that A-CFF needed longer time to achieve bio-stabilization but it showed more effective biofiltration potential than S-CFF.

Jeong, S, Bae, H, Naidu, G, Jeong, D, Lee, S & Vigneswaran, S 2013, 'Bacterial community structure in a biofilter used as a pretreatment for seawater desalination', Ecological Engineering, vol. 60, no. 1, pp. 370-381.
View/Download from: Publisher's site
View description>>

In this study, two biofilters with different media, anthracite and granular activated carbon (GAC), were used to pre-treat seawater for desalination. Both biofilters had the same operating conditions that lasted for 75 days. The bacterial community struc

Jeong, S, Kim, S-J, Kim, CM, Vigneswaran, S, Nguyen, TV, Shon, H-K, Kandasamy, J & Kim, IS 2013, 'A detailed organic matter characterization of pretreated seawater using low pressure microfiltration hybrid systems', JOURNAL OF MEMBRANE SCIENCE, vol. 428, pp. 290-300.
View/Download from: Publisher's site
View description>>

In this study, two different submerged membrane hybrid systems (SMHSs) namely (i) submerged membrane coagulation hybrid system (SMCHS) and (ii) submerged membrane coagulation-adsorption hybrid system (SMCAHS) were investigated as pretreatment options for seawater reverse osmosis. Organic matters in seawater before and after pretreatment were characterized in terms of XAD fractionation, molecular weight distribution (MWD) and fluorescence. A detailed study on the seawater organic matter (SWOM) structure was made through 1H-nuclear magnetic resonance (1H NMR), pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) and liquid chromatography-mass spectrometry-ion trap-time of fright (LC/MS-IT-TOF). The seawater investigated in this study is mainly composed of hydrophilic matter (57±3.2%). SMHSs removed a significant amount of organic matter. The EEM fluorescence showed a removal of humic-like materials by SMHSs. In addition, humic-like materials relative to protein-like compounds were reduced significantly but the aromaticity of humic-like materials increased. After pretreatment by SMHSs, humics and biopolymers of over 900Da. were found to be reduced and their structure associated with element composition was also changed. The transformation of the SWOM structure after SMHSs pretreatment may have been due to hydrolyzation or oxidization of the organic compounds such as humics and biopolymers resulting in poly-conjugation to aromatic compounds. SMHSs were effective in improving the RO performance leading to higher RO permeate flux and lower permeate flux decline. The pretreatment reduced the amount of foulants on the RO membrane. © 2012 Elsevier B.V.

Jeong, S, Kim, S-J, Kim, LH, Shin, MS, Vigneswaran, S, Nguyen, TV & Kim, IS 2013, 'Foulant analysis of a reverse osmosis membrane used pretreated seawater', JOURNAL OF MEMBRANE SCIENCE, vol. 428, pp. 434-444.
View/Download from: Publisher's site
View description>>

This study focused on the characterization of organic and biological foulants on reverse osmosis (RO) membrane and fouled RO membrane characterization with seawater pretreated by submerged membrane hybrid systems (SMHSs). New low pressure membrane based pretreatments namely submerged membrane coagulation hybrid system (SMCHS) and submerged membrane coagulation-adsorption hybrid system (SMCAHS) were investigated. Organic foulants on RO membrane were characterized in terms of molecular weight distribution (MWD), fluorescence and extracellular polymeric substance (EPS) analyses. The organic foulants were mainly composed of high molecular weight matters representing biopolymers in the foulants. The fluorescence excitation-emission matrix (F-EEM) analysis showed that protein-like materials were dominant with samples pretreated by SMHSs. Humic-like materials which have lower aromaticity were also present in the foulant. Biological foulants were investigated in terms of total direct cell (TDC) count, cell viability and biomass activity (adenosine tri-phosphate; ATP). Biological fouling was found to be reduced by organic removal with SMHSs. The fouled membranes were characterized using environmental scanning electron microscopy coupled with energy dispersive spectroscopy, attenuated total reflection-Fourier transform infrared spectrometry, zeta-potential measurement, atomic force microscopy, and contact angle measurement. © 2012 Elsevier B.V.

Jeong, S, Naidu, G & Vigneswaran, S 2013, 'Submerged membrane adsorption bioreactor as a pretreatment in seawater desalination for biofouling control', Bioresource Technology, vol. 141, no. 1, pp. 57-64.
View/Download from: Publisher's site
View description>>

Submerged membrane adsorption bioreactor (SMABR) was investigated as a pretreatment to reverse osmosis (RO). SMABR removed organic matter by adsorption and biological degradation. At a powder activated carbon (PAC) residence time of 66 d (1.5% of PAC replacement daily), higher organic removal was achieved with removal of a majority of biopolymers (9497%) and humics (7176%). A continuous MBR operation with the optimal PAC residence time of 66 d was conducted and compared with MBR with no PAC replenishment in terms of the removal of organic and microbes. High removal of organics of up to 72% was maintained with only a marginal increment of trans-membrane pressure and stable bioactivity (total cell number and adenosine tri-phosphate) during the 50 d of operation. The SMABR was found to be a sustainable biological pretreatment to RO with only a small amount of PAC requirement (2.14 g of PAC/m3 of seawater treated).

Jeong, S, Naidu, G, Vigneswaran, S, Ma, CH & Rice, SA 2013, 'A rapid bioluminescence-based test of assimilable organic carbon for seawater', Desalination, vol. 317, pp. 160-165.
View/Download from: Publisher's site
View description>>

The accumulation of biological materials and bacteria on water purification membranes, termed biofouling, is associated with decreased membrane performance and increased cost of operation. One strategy to minimize biofouling is pretreatment of the influent water. In this regard, tools and indicators that can assess the influent water are required, enabling an optimum selection of pretreatment methods. One parameter directly linked to biofouling potential is the concentration of assimilable organic carbon (AOC) in the feed-water. High AOC levels are associated with increased growth potential of the microbial fouling community. This work focused on the development of a new method for rapid and accurate quantification of AOC concentration in seawater. The method is based on the quantification of the bioluminescence response of the marine bacterium Vibrio fischeri MJ-1. Compared to previous methods, this new V. fischeri method was rapid (within 1. h), sensitive (detection limit. = 0.1. μg-C glucose equivalents/L) and highly suitable for seawater samples. V. fischeri method was evaluated using real seawater samples. The results showed positive reproductive AOC values. The new V. fischeri AOC method developed has a highly promising potential to be practically adopted as a rapid indicator of AOC concentration and hence biofouling potential of influent marine water. © 2013 Elsevier B.V.

Jeong, S, Okour, Y, Nguyen, TV, Shon, HK & Vigneswaran, S 2013, 'Ti-salt flocculation for dissolved organic matter removal in seawater', DESALINATION AND WATER TREATMENT, vol. 51, no. 16-18, pp. 3591-3596.
View/Download from: Publisher's site
View description>>

In this study, the removal of different fractions of organic matter in seawater was investigated using titanium tetrachloride (TiCl4) flocculation and compared with ferric chloride (FeCl3) flocculation. The organic matter fractions were characterised using liquid chromatography-organic carbon detector (LC-OCD). Results showed the hydrophobic compounds removal was dominant by both flocculants. However, the removal of hydrophilic organic compounds, such as humics and low-molecular weight neutral compounds of seawater, was superior by TiCl4 flocculation compared to FeCl3 flocculation and this removal increased considerably with the increase of TiCl4 doses. The flocculated sludge after TiCl4 flocculation was incinerated to produce titanium dioxide (TiO2) nanoparticle. TiO2 from seawater sludge characterised by X-ray diffraction (XRD) and scanning electron microscope/energy-dispersive X-ray spectroscopy (SEM/EDS) showed predominant anatase phase with Si as a main dopant. © 2013 Copyright Balaban Desalination Publications.

Jia, W, Liang, S, Ngo, HH, Guo, W, Zhang, J, Wang, R & Zou, Y 2013, 'Effect of phosphorus load on nutrients removal and N2O emission during low-oxygen simultaneous nitrification and denitrification process', BIORESOURCE TECHNOLOGY, vol. 141, no. 1, pp. 123-130.
View/Download from: Publisher's site
View description>>

Three laboratory scale anaerobicaerobic (low-oxygen) SBRs (R1, R2 and R3) were conducted at different influent phosphorus concentration to evaluate the impacts of phosphorus load on nutrients removal and nitrous oxide (N2O) emission during low-oxygen simultaneous nitrification and denitrification (SND) process. The results showed that TP and TN removals were enhanced simultaneously with the increase in phosphorus load. It was mainly caused by the enrichment of polyphosphate accumulating organisms (PAOs) under high phosphorus load and low COD/P ratio (<50), which could use nitrate/nitrite as electron acceptors to take up the phosphorus. N2O emission was reduced with increasing phosphorus load. N2O-N emission amount per cycle of R3 was 24.1% lower than that of R1. It was due to the decrease of N2O yield by heterotrophic denitrification. When the phosphorus load increased from R1 to R3, heterotrophic denitrification (D) ranged from 42.6% to 36.6% of the N2O yield.

Jia, W, Liang, S, Zhang, J, Ngo, HH, Guo, W, Yan, Y & Zou, Y 2013, 'Nitrous oxide emission in low-oxygen simultaneous nitrification and denitrification process: Sources and mechanisms', BIORESOURCE TECHNOLOGY, vol. 136, no. 1, pp. 444-451.
View/Download from: Publisher's site
View description>>

This study attempts to elucidate the emission sources and mechanisms of nitrous oxide (N2O) during simultaneous nitrification and denitrification (SND) process under oxygen-limiting condition. The results indicated that N2O emitted during low-oxygen SND process was 0.8 ± 0.1 mg N/gMLSS, accounting for 7.7% of the nitrogen input. This was much higher than the reported results from conventional nitrification and denitrification processes. Batch experiments revealed that nitrifier denitrification was attributed as the dominant source of N2O production. This could be well explained by the change of ammonia-oxidizing bacteria (AOB) community caused by the low-oxygen condition. It was observed that during the lowoxygen SND process, AOB species capable of denitrification, i.e., Nitrosomonas europaea and Nitrosomonas-like, were enriched whilst the composition of denitrifiers was only slightly affected. N2O emission by heterotrophic denitrification was considered to be limited by the presence of oxygen and unavailability of carbon source.

Jiang, F, Daoyi Dong, Longbing Cao & Frater, MR 2013, 'Agent-Based Self-Adaptable Context-Aware Network Vulnerability Assessment', IEEE Transactions on Network and Service Management, vol. 10, no. 3, pp. 255-270.
View/Download from: Publisher's site
View description>>

Immunology inspired computer security has attracted enormous attention as its potential impacts on the next generation service-oriented network operation system. In this paper, we propose a new agent-based threat awareness assessment strategy inspired by the human immune system to dynamically adapt against attacks. Specifically, this approach is based on the dynamic reconfiguration of the file access right for system calls or logs (e.g., file rewritability) with balanced adaptability and vulnerability. Based on an information-theoretic analysis on the coherently associations of adaptability, autonomy as well as vulnerability, a generic solution is suggested to break down their coherent links. The principle is to maximize context-situation awared systems' adaptability and reduce systems' vulnerability simultaneously. Experimental results show the efficiency of the proposed biological behaviour-inspired vulnerability awareness system.

Jiang, M & Dong, D 2013, 'An efficient scheme for multi-party quantum state sharing of an arbitrary multi-qubit state with one GHZ channel', Quantum Information Processing, vol. 12, no. 2, pp. 841-851.
View/Download from: Publisher's site

Jiang, M & Dong, D 2013, 'Multi-party quantum state sharing via various probabilistic channels', Quantum Information Processing, vol. 12, no. 1, pp. 237-249.
View/Download from: Publisher's site

Johir, MA, Shanmuganathan, S, Vigneswaran, S & Kandasamy, J 2013, 'Performance of submerged membrane bioreactor (SMBR) with and without the addition of the different particle sizes of GAC as suspended medium', BIORESOURCE TECHNOLOGY, vol. 141, pp. 13-18.
View/Download from: Publisher's site
View description>>

In this study the effect of different particle sizes of granular activated carbon (GAC) on the performance of a submerged membrane bioreactor (SMBR) was investigated. The sizes of GAC used were 150-300, 300-600 and 600-1200μm. The SMBR was operated at a filtration flux of 20L/m2h. The removal of dissolved organic carbon (DOC) and chemical oxygen demand (COD) with the addition of GAC was 95%. The concentration of biopolymers, humic, building block and low molecular weight neutral and acids in the SMBR effluent was reduced by 20%, 66-76%, 20-50%, 30-56%, respectively. It helped to reduce the sludge volume index (SVI) and transmembrane pressure (TMP) development by 30-40% and 58%, respectively. However, the removal of NH4+ and PO43- was relatively low of 35-45% and 34-43%, respectively. The SMBR effluent was rich in PO43- and was removed/recovered using hydrated ferric oxide (HFO). The removal of PO43- was almost 90%. © 2013 Elsevier Ltd.

Johir, MAH, Vigneswaran, S, Kandasamy, J & Sleigh, R 2013, 'Coupling of physico-chemical treatment and steel membrane filtration to enhanced organic removal in wastewater treatment', DESALINATION AND WATER TREATMENT, vol. 51, no. 13-15, pp. 2695-2701.
View/Download from: Publisher's site
View description>>

In this study, the application of steel membrane filtration was tested with the pre-treated wastewater. The pre-treatment methods tested before membrane filtration application were flocculation using FeCl3, Powdered Activated Carbon (PAC) adsorption, purolite ion-exchange column and purolite ion-exchange column followed by flocculation (FeCl3). The effect of two different modes of membrane application (cross-flow and dead-end modes) was examined. The ability of these filters in removing organic matters and solids were examined. It was found that the decline of flux was slightly lower for dead-end mode of operation to that of cross-flow mode of operation. Pre-treatment increased the performance of membrane filtration. The flux decline of raw water (without pre-treatment) was 31-10%, whereas after pre-treatment, it was about 2.5-21%. Pre-treatment followed by microfiltration (MF) showed 68-91% removal efficiency of dissolved organic carbon

Johir, MAH, Vigneswaran, S, Kandasamy, J, BenAim, R & Grasmick, A 2013, 'Effect of salt concentration on membrane bioreactor (MBR) performances: Detailed organic characterization', Desalination, vol. 322, no. 1, pp. 13-20.
View/Download from: Publisher's site
View description>>

The gradual increase of salt concentration (0 to 35g-NaCl/L) on the performance of membrane bioreactor (MBR) was studied. The uptake rate of dissolved organic carbon and ammonia decreased from around 17.0mg-DOC/g-MLVSS.d to 1.8mg-DOC/g-MLVSS.d and from 8.2mg-NH4-N/g-MLVSS.d to 0mg-NH4-N/g-MLVSS.d respectively when salt concentration reached to 35g-NaCl/L. Similarly the specific oxygen uptake rate (SOUR) reduced from 8 to 9 to around 0.3mg-O2/g-MLVSS.h. The removal of bio-polymers, humic acids, building blocks and low molecular weight neutral decreased with increase in salt concentration. The concentration of dissolved organic nitrogen (DON) in bio-polymer increased from 0.05 to 3.31mg/L when the salt concentration reached to 35g-NaCl/L. This study provides good information for understanding the effect of continuous increase of salt concentration in treating saline wastewater in a MBR process. © 2013.

Jupp, JR & Awad, R 2013, 'Developing Digital Literacy in Construction Management Education: A Design Thinking Led Approach', Journal of Pedagogic Development, vol. 3, no. 3, pp. 24-30.
View description>>

Alongside the digital innovations in AEC (Architectural, Engineering and Construction) practice, are calls for a new type of digital literacy, including a new information-based literacy informed by creativity, critical analysis and the theoretical and practical knowledge of the construction profession. This paper explores the role of design thinking and the promotion of abductive problem situations when developing digital literacies in construction education. The impacts of advanced digital modelling technologies on construction management practices and education are investigated before an examination of design thinking, the role of abductive reasoning and the rise of normative models of design thinking workflows. The paper then explores the role that design thinking can play in the development of new digital literacies in contemporary construction studies. A three-part framework for the implementation of a design thinking approach to construction is presented. The paper closes with a discussion of the importance of models of design thinking for learning and knowledge production, emphasising how construction management education can benefit from them.

Kabir, SMR, Rahman, BMA, Agrawal, A & Grattan, KTV 2013, 'ELIMINATION OF NUMERICAL DISPERSION FROM ELECTROMAGNETIC TIME DOMAIN ANALYSIS BY USING RESOURCE EFFICIENT FINITE ELEMENT TECHNIQUE', Progress In Electromagnetics Research, vol. 137, pp. 487-512.
View/Download from: Publisher's site

Kabiri, K, Pradhan, B, Samimi-Namin, K & Moradi, M 2013, 'Detecting coral bleaching, using QuickBird multi-temporal data: A feasibility study at Kish Island, the Persian Gulf', Estuarine, Coastal and Shelf Science, vol. 117, pp. 273-281.
View/Download from: Publisher's site

Kabiri, K, Pradhan, B, Shafri, HZM, Mansor, SB & Samimi-Namin, K 2013, 'A Novel Approach to Estimate Diffuse Attenuation Coefficients for QuickBird Satellite Images: A Case Study at Kish Island, the Persian Gulf', Journal of the Indian Society of Remote Sensing, vol. 41, no. 4, pp. 797-806.
View/Download from: Publisher's site

Kale, A, Chaczko, Z & Rudas, I 2013, 'Managing Dynamism of Multimodal Detection in Machine Vision Using Selection of Phenotypes', Computer Aided Systems Theory -- EUROCAST 2013, vol. 8112, no. 1, pp. 483-490.
View/Download from: Publisher's site
View description>>

Multimodal Sensor Vision is a technique for detecting objects in dynamic and uncertain environmental conditions. In this research, a new approach for automated feature subset selection-mechanism is proposed that combines a set of features acquired from multiple sensors. Based on changing environmental conditions, the merits of respective sensory data can be assessed and the feature subset optimized, using genetic operators. Genetic Algorithms (GAs) with problem specific modifications improve reliability and adaptability of the detection process. In the new approach, a traditional GA is customized by combining the problem profiled encoding with a specialized operator. Application of an additional operator prioritizes and switches within the feature subsets of the algorithm, allowing a feature level aggregation that uses the most prominent features. The approach offers a more robust and a better performing Machine Vision processing.

Kang, S-J, Tijing, LD, Hwang, B-S, Jiang, Z, Kim, HY & Kim, CS 2013, 'Fabrication and photocatalytic activity of electrospun nylon-6 nanofibers containing tourmaline and titanium dioxide nanoparticles', Ceramics International, vol. 39, no. 6, pp. 7143-7148.
View/Download from: Publisher's site

Karadag, Y, Aas, M, Jonáš, A, Anand, S, McGloin, D & Kiraz, A 2013, 'Dye lasing in optically manipulated liquid aerosols', Optics Letters, vol. 38, no. 10, pp. 1669-1669.
View/Download from: Publisher's site

Kardani, M, Nazem, M, Sheng, D & Carter, JP 2013, 'Large deformation analysis of geomechanics problems by a combined rh-adaptive finite element method', Computers and Geotechnics, vol. 49, pp. 90-99.
View/Download from: Publisher's site

Karsa, M, Dalla Pozza, L, Venn, NC, Law, T, Shi, R, Giles, JE, Bahar, AY, Cross, S, Catchpoole, D, Haber, M, Marshall, GM, Norris, MD & Sutton, R 2013, 'Improving the Identification of High Risk Precursor B Acute Lymphoblastic Leukemia Patients with Earlier Quantification of Minimal Residual Disease', PLoS ONE, vol. 8, no. 10, pp. e76455-e76455.
View/Download from: Publisher's site
View description>>

The stratification of patients with acute lymphoblastic leukemia (ALL) into treatment risk groups based on quantification of minimal residual disease (MRD) after induction therapy is now well accepted but the relapse rate of about 20% in intermediate risk patients remains a challenge. The purpose of this study was to further improve stratification by MRD measurement at an earlier stage. MRD was measured in stored day 15 bone marrow samples for pediatric patients enrolled on ANZCHOG ALL8 using Real-time Quantitative PCR to detect immunoglobulin and T-cell receptor gene rearrangements with the same assays used at day 33 and day 79 in the original MRD stratification. MRD levels in bone marrow at day 15 and 33 were highly predictive of outcome in 223 precursor B-ALL patients (log rank Mantel-Cox tests both P<0.001) and identified patients with poor, intermediate and very good outcomes. The combined use of MRD at day 15 (≥1×10-2) and day 33 (≥5×1-5) identified a subgroup of medium risk precursor B-ALL patients as poor MRD responders with 5 year relapse-free survival of 55% compared to 84% for other medium risk patients (log rank Mantel-Cox test, P = 0.0005). Risk stratification of precursor B-ALL but not T-ALL could be improved by using MRD measurement at day 15 and day 33 instead of day 33 and day 79 in similar BFM-based protocols for children with this disease. © 2013 Karsa et al.

Kazem, A, Sharifi, E, Hussain, FK, Saberi, M & Hussain, OK 2013, 'Support vector regression with chaos-based firefly algorithm for stock market price forecasting', APPLIED SOFT COMPUTING, vol. 13, no. 2, pp. 947-958.
View/Download from: Publisher's site
View description>>

Due to the inherent non-linearity and non-stationary characteristics of financial stock market price time series, conventional modeling techniques such as the Box-Jenkins autoregressive integrated moving average (ARIMA) are not adequate for stock market price forecasting. In this paper, a forecasting model based on chaotic mapping, firefly algorithm, and support vector regression (SVR) is proposed to predict stock market price. The forecasting model has three stages. In the first stage, a delay coordinate embedding method is used to reconstruct unseen phase space dynamics. In the second stage, a chaotic firefly algorithm is employed to optimize SVR hyperparameters. Finally in the third stage, the optimized SVR is used to forecast stock market price. The significance of the proposed algorithm is 3-fold. First, it integrates both chaos theory and the firefly algorithm to optimize SVR hyperparameters, whereas previous studies employ a genetic algorithm (GA) to optimize these parameters. Second, it uses a delay coordinate embedding method to reconstruct phase space dynamics. Third, it has high prediction accuracy due to its implementation of structural risk minimization (SRM). To show the applicability and superiority of the proposed algorithm, we selected the three most challenging stock market time series data from NASDAQ historical quotes, namely Intel, National Bank shares and Microsoft daily closed (last) stock price, and applied the proposed algorithm to these data. Compared with genetic algorithm-based SVR (SVR-GA), chaotic genetic algorithm-based SVR (SVR-CGA), firefly-based SVR (SVR-FA), artificial neural networks (ANNs) and adaptive neuro-fuzzy inference systems (ANFIS), the proposed model performs best based on two error measures, namely mean squared error (MSE) and mean absolute percent error (MAPE). Copyright © 2012 Published by Elsevier B.V. All rights reserved.

Kazienko, P, Musial, K & Kajdanowicz, T 2013, 'Multidimensional Social Network in the Social Recommender System', Kazienko, P.; Musial, K.; Kajdanowicz, T.;, 'Multidimensional Social Network in the Social Recommender System,' Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions on, vol.41, no.4, pp.746-759, July 2011, vol. 41, no. 4, pp. 746-759.
View/Download from: Publisher's site
View description>>

All online sharing systems gather data that reflects users' collectivebehaviour and their shared activities. This data can be used to extractdifferent kinds of relationships, which can be grouped into layers, and whichare basic components of the multidimensional social network proposed in thepaper. The layers are created on the basis of two types of relations betweenhumans, i.e. direct and object-based ones which respectively correspond toeither social or semantic links between individuals. For better understandingof the complexity of the social network structure, layers and their profileswere identified and studied on two, spanned in time, snapshots of the Flickrpopulation. Additionally, for each layer, a separate strength measure wasproposed. The experiments on the Flickr photo sharing system revealed that therelationships between users result either from semantic links between objectsthey operate on or from social connections of these users. Moreover, thedensity of the social network increases in time. The second part of the studyis devoted to building a social recommender system that supports the creationof new relations between users in a multimedia sharing system. Its main goal isto generate personalized suggestions that are continuously adapted to users'needs depending on the personal weights assigned to each layer in themultidimensional social network. The conducted experiments confirmed theusefulness of the proposed model.

Kersten, W, Skirde, H & Lammers, T 2013, 'Komplexitätscontrolling in Logistiksystemen', Controlling, vol. 25, no. 2, pp. 90-95.
View/Download from: Publisher's site
View description>>

In this paper we show a methodology to derive recommendations for the optimization and controlling of complexity in logistics systems, taking the example of the distribution. Based on an assessment and a visualization of the complexity, a structured deduction of multiple approaches is conducted and subsequently applied in the case study of a 3rd party logistics provider.

Keshavarz, R & Movahhedi, M 2013, 'A compact and wideband coupled-line coupler with high coupling level using shunt periodic stubs', Radioengineering, vol. 22, no. 1, pp. 323-327.
View description>>

A wideband microstrip forward-wave coupledline coupler with high coupling value is presented. Compared with the conventional edge-coupled microstrip forward-wave coupler, this symmetrical structure, consisting periodic shunt stubs between the two coupled-lines, achieves wider operating bandwidth and larger coupling level. To characterize this structure, the equivalent circuit model is established and verified by measurement and fullwave results. The designed and fabricated prototype is a 0-dB forward-wave coupler with 0.6 mm stub length. This coupler exhibits a coupled amplitude balance of ±2 dB, good matching (15 dB) and at least 15dB isolation between adjacent ports over a wide bandwidth of 66% from 2 GHz to 4 GHz centered at 3 GHz. The coupled-line length and width of the proposed structure are approximately λg/2 and λg/13, respectively, which makes it more compact than the conventional forward coupled-line couplers.

Keshavarz, R, Mohammadi, A & Abdipour, A 2013, 'A Quad-Band Distributed Amplifier With E-CRLH Transmission Line', IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 12, pp. 4188-4194.
View/Download from: Publisher's site

Kha, HH, Tuan, HD & Nguyen, HH 2013, 'Joint Optimization of Source Power Allocation and Cooperative Beamforming for SC-FDMA Multi-User Multi-Relay Networks', IEEE Transactions on Communications, vol. 61, no. 6, pp. 2248-2259.
View/Download from: Publisher's site
View description>>

This paper is concerned with design problems of joint source power allocation and relay beamforming in multiuser multi-relay networks that use single-carrier frequency division multiple access (SC-FDMA) and amplify-and-forward relaying. Examined are the

Kha, HH, Tuan, HD, Nguyen, HH & Pham, TT 2013, 'Optimization of Cooperative Beamforming for SC-FDMA Multi-User Multi-Relay Networks by Tractable D.C. Programming', IEEE Transactions on Signal Processing, vol. 61, no. 2, pp. 467-479.
View/Download from: Publisher's site
View description>>

This paper addresses the optimal cooperative beamforming design for multi-user multi-relay wireless networks in which the single-carrier frequency division multiple access (SC-FDMA) technique is employed at the terminals. The problem of interest is to find the beamforming weights across relays to maximize the minimum signal-to-interference-plus-noise ratio (SINR) among source users subject to individual power constraints at each relay. Such a beamforming design is shown to be a hard nonconvex optimization problem and therefore it is mathematically challenging to find the optimal solution. By exploring its partial convex structures, we recast the design problem as minimization of a d.c. (difference of two convex) objective function subject to convex constraints and develop an effective iterative algorithm of low complexity to solve it. Simulation results show that our optimal cooperative beamforming scheme realizes the inherent diversity order of the relay network and it performs significantly better than the equal-power beamforming weights.

Khalilpour, R, Abbas, A, Lai, Z & Pinnau, I 2013, 'Analysis of hollow fibre membrane systems for multicomponent gas separation', Chemical Engineering Research and Design, vol. 91, no. 2, pp. 332-347.
View/Download from: Publisher's site

Kheirkhah, A, Azadeh, A, Saberi, M, Azaron, A & Shakouri, H 2013, 'Improved estimation of electricity demand function by using of artificial neural network, principal component analysis and data envelopment analysis', Computers & Industrial Engineering, vol. 64, no. 1, pp. 425-441.
View/Download from: Publisher's site

Khorsandnia, N, Valipour, HR & Crews, K 2013, 'Nonlinear finite element analysis of timber beams and joints using the layered approach and hypoelastic constitutive law', ENGINEERING STRUCTURES, vol. 46, no. 1, pp. 606-614.
View/Download from: Publisher's site
View description>>

This paper focuses on development and application of finite element models for nonlinear analysis of timber, timberâconcrete composite (TCC) beams and joints. A new piecewise continuous orthotropic failure envelope in the bi-axial stress space is proposed for modelling timber behaviour. The proposed orthotropic surface is simplified based on isotropic behaviour of timber along the grains and the model is formulated within the framework of hypoelastic constitutive law. The developed constitutive law and finite element (FE) models are verified by examples taken from the literature including timber beams with and without notches and holes subject to three- and four-point bending as well as push-out test results of TCC connections. Further, the accuracy and performance of the proposed constitutive law for capturing nonlinear behaviour and failure load of timber beams and connections is compared with orthotropic Hashin damage model. The FE results show good agreement with experimental results in terms of loadâdisplacement response and ultimate loading capacity of members and it is concluded that the developed timber model can adequately capture the global as well as the local behaviour of timber beams and TCC connections.

Khushaba, RN, Kodagoda, S, Lal, S & Dissanayake, G 2013, 'Uncorrelated fuzzy neighborhood preserving analysis based feature projection for driver drowsiness recognition', FUZZY SETS AND SYSTEMS, vol. 221, no. 1, pp. 90-111.
View/Download from: Publisher's site
View description>>

Driver drowsiness is reported as one of the main causal factors in many traffic accidents as it progressively impairs the driver's awareness about external events. Drowsiness detection can be approached through monitoring physiological signals while driving to correlate drowsiness with the change in the corresponding patterns of the Electroencephalogram (EEG), Electrooculogram (EOG), and Electrocardiogram (ECG) signals. The main challenge in such an approach is to extract a set of features that can highly discriminate between the different drowsiness levels. This paper proposes a new Fuzzy Neighborhood Preserving Analysis (FNPA) feature projection method that is used to extract the discriminant information relevant to the loss of attention caused by drowsiness. Unlike existing methods, FNPA considers the fuzzy memberships of the input measurements into the different classes while constructing the graph Laplacian. Thus, it is able to identify both the discriminant and the geometrical structure of the input data while accounting for the overlapping nature of the drowsiness patterns. Furthermore, in order to address the singularity problem that occurs in many real world problems, the singular value decomposition (SVD), and later the QR-Decomposition, are utilized to extract a set of statistically uncorrelated features presenting the Uncorrelated FNPA (UFNPA). In the current preliminary study with datasets collected from 31 subjects only, while performing a driving simulation task, the proposed method is capable of accurately classifying the drowsiness levels using a small number of features with an average accuracy of 93%93%. On the other hand, the possibility of developing a subject-independent drowsiness recognition system is also investigated when the problem is converted into a binary classification task, as imposed by the number of drowsiness levels exhibited by the drivers, with accuracies ranging from 82%-to-84%.

Khushaba, RN, Kodagoda, S, Liu, D & Dissanayake, G 2013, 'Muscle computer interfaces for driver distraction reduction', COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE, vol. 110, no. 2, pp. 137-149.
View/Download from: Publisher's site
View description>>

Driver distraction is regarded as a significant contributor to motor-vehicle crashes. One of the important factors contributing to driver distraction was reported to be the handling and reaching of in-car electronic equipment and controls that usually requires taking the drivers' hands off the wheel and eyes off the road. To minimize the amount of such distraction, we present a new control scheme that senses and decodes the human muscles signals, denoted as Electromyogram (EMG), associated with different fingers postures/pressures, and map that to different commands to control external equipment, without taking hands off the wheel. To facilitate such a scheme, the most significant step is the extraction of a set of highly discriminative feature set that can well separate between the different EMG-based actions and to do so in a computationally efficient manner. In this paper, an accurate and efficient method based on Fuzzy Neighborhood Discriminant Analysis (FNDA), is proposed for discriminant feature extraction and then extended to the channel selection problem. Unlike existing methods, the objective of the proposed FNDA is to preserve the local geometrical and discriminant structures, while taking into account the contribution of the samples to the different classes. The method also aims to efficiently overcome the singularity problems of classical LDA by employing the QR-decomposition. Practical real-time experiments with eight EMG sensors attached on the human forearm of eight subjects indicated that up to fourteen classes of fingers postures/pressures can be classified with <7% error on average, proving the significance of the proposed method. © 2012 Elsevier Ireland Ltd.

Khushaba, RN, Wise, C, Kodagoda, S, Louviere, J, Kahn, BE & Townsend, C 2013, 'Consumer neuroscience: Assessing the brain response to marketing stimuli using electroencephalogram (EEG) and eye tracking', EXPERT SYSTEMS WITH APPLICATIONS, vol. 40, no. 9, pp. 3803-3812.
View/Download from: Publisher's site

Ki, S-K & Lu, DD-C 2013, 'A High Step-Down Transformerless Single-Stage Single-Switch AC/DC Converter', IEEE Transactions on Power Electronics, vol. 28, no. 1, pp. 36-45.
View/Download from: Publisher's site

Kianfar, K, Indraratna, B & Rujikiatkamjorn, C 2013, 'Radial consolidation model incorporating the effects of vacuum preloading and non-Darcian flow', GEOTECHNIQUE, vol. 63, no. 12, pp. 1060-1073.
View/Download from: Publisher's site

Kim, HJ, Pant, HR, Park, CH, Tijing, LD, Choi, NJ & Kim, CS 2013, 'Hydrothermal growth of mop-brush-shaped ZnO rods on the surface of electrospun nylon-6 nanofibers', Ceramics International, vol. 39, no. 3, pp. 3095-3102.
View/Download from: Publisher's site

Kim, HJ, Pant, HR, Park, CH, Tijing, LD, Hwang, BS, Choi, NJ & Kim, CS 2013, 'Electrical properties of ZnO/nylon-6 spider-wave-like nanonets prepared via electrospinning', Digest Journal of Nanomaterials and Biostructures, vol. 8, pp. 385-393.
View description>>

In this work, ZnO nanoparticles (NPs) incorporated electrospun nylon-6 spider-wave-like nanonets with improved electrical properties were successfully fabricated by simple blending of ZnO NPs with nylon-6 solution. Proper dispersion of ZnO NPs with nylon-6 solution not only produce well distributed ZnO NPs on/into the fibres but also accelerate the formation of large number of thin fibres in the form of spider-wave-like nanonets. The incorporation of ZnO NPs through spider-wave-like nylon-6 nanonets was verified by FESEM, EDX, TEM, TGA, FT-IR analysis. The electrical properties of pristine nylon-6 and ZnO/nylon-6 composite fibres was investigated by current-voltage (I-V) characteristic measurement. It was found that ZnO incorporated nylon-6 composite mats had better electrical conductivity than pristine nylon-6 mat. This result was due to the influence of ultrathin nanofibers and well incorporated ZnO NPs through electrospun nylon-6 fibers. The significant enhanced electrical properties of composite mat may open a new direction for future polymer electronics.

Kim, JB, Park, H-J, Lee, KW, Jo, AR, Kim, MW, Lee, YJ, Park, SM, Lee, KY, Shon, HK & Kim, J-H 2013, 'Application of Ti-salt Coagulant and Sludge Recycling for Phosphorus Removal in Biologically Treated Sewage Effluent', Korean Chemical Engineering Research, vol. 51, no. 2, pp. 257-262.
View/Download from: Publisher's site

Kim, JE, Phuntsho, S & Shon, HK 2013, 'Pilot-scale nanofiltration system as post-treatment for fertilizer-drawn forward osmosis desalination for direct fertigation', DESALINATION AND WATER TREATMENT, vol. 51, no. 31-33, pp. 6265-6273.
View/Download from: Publisher's site
View description>>

The integration of the fertilizer-drawn forward osmosis with nanofiltration (NF) has been investigated to evaluate the performance of NF process as a post-treatment. The primary objective of this study is to optimize the operating conditions such as feed flow rate and feed concentration, while producing fresh water including low nutrient (N) concentration can be directly used for irrigation. Investigation of operating parameters at the pilot-scale level focused on specific water flux and ammonium sulphate rejection. Results from this study showed that NF process applied as the post-treatment can effectively reject the N concentration more than 90%. Although other factors such as the applied pressure and the cross-flow rates played a certain role in the performance of the pilot-scale NF process, the influence of the feed concentration was more significant on the specific water flux and N rejection. © 2013 Copyright Balaban Desalination Publications.

Kim, TH, Hwang, BS, Kang, HY, Kim, JH, Tijing, LD, Kim, CS & Lim, JK 2013, 'Enhanced wetting and adhesion of polycarbonate by ultraviolet light surface treatment', Digest Journal of Nanomaterials and Biostructures, vol. 8, no. 4, pp. 1415-1421.
View description>>

In this study, polycarbonate (PC) surfaces were treated with ultraviolet (UV) light irradiation at different treatment times (0 to 48 h) and at two UV wavelengths, i.e., at 365 nm (UVA) and at 254 nm (UVC). Morphological and surface properties were characterized by field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and contact angle (CA) measurements. To check the shear strength of the treated polycarbonates, single-lap shear test was carried out. Both UVA and UVC treatment produced rougher PC surface compared to untreated PC, however, UVA did not affect much the wettability of PC. But for UVC treatment, the CA of PC decreased with increasing treatment time to a maximum reduction of 23% after 48 h. The shear strength of UVC-treated PC increased by 63% than that of untreated PC, which is attributed to the formation of functional groups at the surface making it hydrophilic and the rougher surface topography that gives more surface area for adhesion.

Komkhao, M, Lu, J, Li, Z & Halang, WA 2013, 'Incremental collaborative filtering based on Mahalanobis distance and fuzzy membership for recommender systems', INTERNATIONAL JOURNAL OF GENERAL SYSTEMS, vol. 42, no. 1, pp. 41-66.
View/Download from: Publisher's site
View description>>

Recommender systems, as an effective personalization approach, can suggest best-suited items (products or services) to particular users based on their explicit and implicit preferences by applying information filtering technology. Collaborative filtering (CF) method is currently the most popular and widely adopted recommendation approach. It works by collecting user ratings for items in a given domain and by computing the similarity between the profiles of several users in order to recommend items. Current similarity measures and models updated by traditional model-based CF have, however, shortcomings with respect to accuracy of prediction and scalability of recommender systems. To overcome these problems, here an incremental CF algorithm based on the Mahalanobis distance is presented. The algorithm has two phases: the learning phase, in which models of similar users are constructed incrementally, and the prediction phase, in which interested users are clustered by measuring their similarity to existing clusters in a model. To handle confusion of decision making on overlapping clusters, fuzzy sets are employed, and the degree of membership to them is expressed by the Mahalanobis radial basis function. Experimental results demonstrate that the proposed algorithm leads to improved prediction accuracy and prevents the scalability problem in recommendation systems.

Kong, Q, Zhang, J, Ngo, HH, Ni, S, Fu, R, Guo, W, Guo, N & Tian, L 2013, 'Nitrous oxide emission in an aerobic granulation sequencing batch airlift reactor at ambient temperatures', INTERNATIONAL BIODETERIORATION & BIODEGRADATION, vol. 85, no. 1, pp. 533-538.
View/Download from: Publisher's site
View description>>

This study aims to investigate the nitrous oxide (N2O) emission in an aerobic granulation sequencing batch airlift reactor (SBAR) and the associated microbial community of aerobic granular sludge at ambient temperature (18+-3)0C. After 48 days of operation, 1-2 mm granules were obtained and excellent chemical oxygen demand (COD) and ammonium NH4-N removal efficiencies were stably achieved. N2O concentration in the off gas was maximal at the beginning of the aerobic period and stabilized at a lower concentration after an initial peak. (0.60+-0.17, n=3) % of the total nitrogen load to the SBAR was emitted as N2O. A dramatic change in the microbial community structure was noted between the initial seed sludge and the final mature aerobic granular sludge. Nitrosospira was identified to be the dominant ammonium oxidizing bacteria (AOB) which was attributed as the dominant source of N2O production in aerobic granular sludge by analysis of 16S rDNA sequences.

Konyagin, SV, Luca, F, Mans, B, Mathieson, L, Sha, M & Shparlinski, IE 2013, 'Functional Graphs of Polynomials over Finite Fields', Journal of Combinatorial Theory. Series B, vol. 116, pp. 87-122.
View/Download from: Publisher's site
View description>>

Given a function $f$ in a finite field ${\mathbb F}_q$ of $q$ elements, wedefine the functional graph of $f$ as a directed graph on $q$ nodes labelled bythe elements of ${\mathbb F}_q$ where there is an edge from $u$ to $v$ if andonly if $f(u) = v$. We obtain some theoretic estimates on the number ofnon-isomorphic graphs generated by all polynomials of a given degree. We thendevelop a simple and practical algorithm to test the isomorphism of quadraticpolynomials that has linear memory and time complexities. Furthermore, weextend this isomorphism testing algorithm to the general case of functionalgraphs, and prove that, while its time complexity increases only slightly, itsmemory complexity remains linear. We exploit this algorithm to provide an upperbound on the number of functional graphs corresponding to polynomials of degree$d$ over ${\mathbb F}_q$. Finally, we present some numerical results andcompare function graphs of quadratic polynomials with those generated by randommaps and pose interesting new problems.

Kouretzis, GP, Sheng, D & Sloan, SW 2013, 'Sand–pipeline–trench lateral interaction effects for shallow buried pipelines', Computers and Geotechnics, vol. 54, pp. 53-59.
View/Download from: Publisher's site

Krami, LK, Amiri, F, Sefiyanian, A, Shariff, ARBM, Tabatabaie, T & Pradhan, B 2013, 'Spatial patterns of heavy metals in soil under different geological structures and land uses for assessing metal enrichments', Environmental Monitoring and Assessment, vol. 185, no. 12, pp. 9871-9888.
View/Download from: Publisher's site

Krunz, M, Siam, MZ & Nguyen, DN 2013, 'Clustering and power management for virtual MIMO communications in wireless sensor networks', Ad Hoc Networks, vol. 11, no. 5, pp. 1571-1587.
View/Download from: Publisher's site
View description>>

Multi-input multi-output (MIMO) is a well-established technique for increasing the link throughput, extending the transmission range, and/or reducing energy consumption. In the context of wireless sensor networks (WSNs), even if each node is equipped with a single antenna, it is possible to group several nodes to form a virtual antenna array, which can act as the transmitting or receiving end of a virtual MIMO (VMIMO) link. In this paper, we propose energy-efficient clustering and power management schemes for virtual MIMO operation in a multi-hop WSN. Our schemes are integrated into a comprehensive protocol, called cooperative MIMO (CMIMO), which involves clustering the WSN into several clusters, each managed by up to two cluster heads (CHs); a master CH (MCH) and a slave CH (SCH). The MCH and SCH collect data from their cluster members during the intra-cluster communications phase and communicate these data to neighboring MCHs/SCHs via an inter-cluster VMIMO link. CMIMO achieves energy efficiency by proper selection of the MCHs and SCHs, adaptation of the antenna elements and powers in the inter-cluster communications phase, and using a cross-layer MIMO-aware route selection algorithm for multi-hop operation. We formally establish the conditions on the transmission powers of CHs and non-CHs that ensure the connectivity of the inter-cluster topology. Simulations are used to study the performance of CMIMO. The simulation results indicate that our proposed protocol achieves significant reduction in energy consumption and longer network life time, compared with non-adaptive clustered WSNs. © 2013 Elsevier B.V.

Kuhlang, P, Hempen, S, Edtmayr, T, Sihn, W & Deuse, J 2013, 'Systematische Verbesserung von Wertströmen', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 1-2, pp. 15-19.
View/Download from: Publisher's site
View description>>

Kurzfassung Wertstromdesign und die kurzzyklische Verbesserungsroutine werden im Zuge des Modells des Wertstromorientierten Prozessmanagements in den organisatorischen Rahmen des Prozessmanagements eingebettet, um eine systematische Verbesserung von Wertströmen in verschiedenen Betrachtungsebenen und Detaillierungsgraden methodisch zu unterstützen. Somit wird eine vertiefte und nachhaltigere Umsetzung des kontinuierlichen Verbesserungsprozesses ermöglicht.

Kuhlang, P, Hempen, S, Sihn, W & Deuse, J 2013, 'Systematic improvement of value streams - fundamentals of value stream oriented process management', International Journal of Productivity and Quality Management, vol. 12, no. 1, pp. 1-1.
View/Download from: Publisher's site
View description>>

Improving processes is a daily base challenge for enterprises. In particular improvement attempts occur in various different levels of detail and are commonly not linked methodically. Process management systems in general are suitable approaches to manage process improvements. A systematic routine to improve processes and value stream mapping (VSM) are integrated into the organisational framework of process management in order to enable a methodically fostered improvement of value streams in different levels of detail. The outlined approach to systematise the application of VSM is the conjunction of volatile and short-cyclic improvements of a value stream and the determination of target-conditions in order to develop the value stream towards an ideal-state which is specified by productivity and quality criteria. Copyright © 2013 Inderscience Enterprises Ltd.

Kus, B, Kandasamy, J, Vigneswaran, S, Shon, HK & Moody, G 2013, 'Gravity driven membrane filtration system to improve the water quality in rainwater tanks', WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY, vol. 13, no. 2, pp. 479-485.
View/Download from: Publisher's site
View description>>

The characterisation of rainwater in metropolitan Sydney and in rural New South Wales was undertaken. The results showed that factors such as the lack of vehicular traffic, air pollution and urban contamination meant that rural rainwater water quality was better. The rain water collected in both metropolitan and rural areas generally complied with the 2004 Australian Drinking Water Guidelines except for parameters such as the pH in both the metropolitan and rural rainwater tanks and the turbidity, and lead levels from the metropolitan tanks. This paper also reports the results of a laboratory and a pilot scale study with a deep bed filter (granular activated carbon, GAC) and microfiltration (MF) hollow fibre membrane filter system used to treat raw rainwater collected from a metropolitan rainwater tank. The results of the laboratory experiment and pilot scale systems focus on the non-compliant parameters of the sampling program, i.e. turbidity, lead and dissolved organic carbon (DOC). It was found that rainwater treated by the GAC filter removed the majority of the turbidity and organic substances. The treatment system reduced the concentration of turbidity, lead and DOC to below the Australian Drinking Water Guidelines limits. The pilot plant experiment demonstrated that a GAC filter system and gravity driven membrane could result in low cost and low maintenance operation.

Kus, B, Kandasamy, J, Vigneswaran, S, Shon, HK & Moody, G 2013, 'Household rainwater harvesting system - pilot scale gravity driven membrane-based filtration system', WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY, vol. 13, no. 3, pp. 790-797.
View/Download from: Publisher's site
View description>>

This paper presents the results of a pilot scale study consisting of pre-treatment with a granular activated carbon (GAC) filter followed by membrane filtration. Detailed characterisation of rainwater tanks has highlighted that turbidity, dissolved organic carbon (DOC) and heavy metals, in particular lead, were not compliant with the 2004 Australian Drinking Water Guidelines (ADWG). Further, organic matter present in the water causes membrane fouling and leads to carcinogenic compounds upon chlorination. A GAC filter was used as a first step to remove dissolved organic matter (measured in terms of DOC) in particular and also to reduce the concentration, of turbidity and lead. Membrane filtration can remove any remaining solids reducing the concentrations of turbidity and microorganisms. In this study a pilot scale rainwater treatment system consisting of a gravity fed GAC filter and membrane filter (Ultra Flo) was operated for a period of 120 days. The performance of this system was assessed in terms of membrane flux and improvement in water quality measured against the 2004 Australian Drinking Water Guidelines. Determination of the flux especially in the later stages of membrane operation was important to be able to size the filters in a manner that meets the expected demand. The treatment system of GAC filter and membrane filter was effective in reducing the turbidity, DOC and heavy metals. The system reduced the turbidity to levels of 0.30.4 NTU, below the ADWG limit of 1 NTU.

Kusakunniran, W, Wu, Q, Zhang, J, Ma, Y & Li, H 2013, 'A New View-Invariant Feature for Cross-View Gait Recognition', IEEE Transactions on Information Forensics and Security, vol. 8, no. 10, pp. 1642-1653.
View/Download from: Publisher's site
View description>>

Human gait is an important biometric feature which is able to identify a person remotely. However, change of view causes significant difficulties for recognizing gaits. This paper proposes a new framework to construct a new view-invariant feature for cross-view gait recognition. Our view-normalization process is performed in the input layer (i.e., on gait silhouettes) to normalize gaits from arbitrary views. That is, each sequence of gait silhouettes recorded from a certain view is transformed onto the common canonical view by using corresponding domain transformation obtained through invariant low-rank textures (TILTs). Then, an improved scheme of procrustes shape analysis (PSA) is proposed and applied on a sequence of the normalized gait silhouettes to extract a novel view-invariant gait feature based on procrustes mean shape (PMS) and consecutively measure a gait similarity based on procrustes distance (PD). Comprehensive experiments were carried out on widely adopted gait databases. It has been shown that the performance of the proposed method is promising when compared with other existing methods in the literature.

Lai, JCY, Leung, FHF, Ling, SH & Nguyen, HT 2013, 'Hypoglycaemia detection using fuzzy inference system with multi-objective double wavelet mutation Differential Evolution', APPLIED SOFT COMPUTING, vol. 13, no. 5, pp. 2803-2811.
View/Download from: Publisher's site
View description>>

In this paper, a fuzzy inference system (FIS) is developed to recognize hypoglycaemic episodes. Hypoglycaemia (low blood glucose level) is a common and serious side effect of insulin therapy for patients with diabetes. We measure some physiological parameters continuously to provide hypoglycaemia detection for Type 1 diabetes mellitus (TIDM) patients. The FIS captures the relationship between the inputs of heart rate (HR), corrected QT interval of the electrocardiogram (ECG) signal (QTc), change of HR, change of QTc and the output of hypoglycaemic episodes to perform the classification. An algorithm called Differential Evolution with Double Wavelet Mutation (DWM-DE) is introduced to optimize the FIS parameters that govern the membership functions and fuzzy rules. DWM-DE is an improved Differential Evolution algorithm that incorporates two wavelet-based operations to enhance the optimization performance. To prevent the phenomenon of overtraining (over-fitting), a validation approach is proposed. Moreover, in this problem, two targets of sensitivity and specificity should be met in order to achieve good performance. As a result, a multi-objective optimization using DWM-DE is introduced to perform the training of the FIS. Experiments using the data of 15 children with TIDM (569 data points) are studied. The data are randomly organized into a training set with 5 patients (l99 data points), a validation set with 5 patients (177 data points) and a testing set with 5 patients (193 data points). The result shows that the proposed FIS tuned by the multi-objective DWM-DE can offer good performance of doing classification.

Laird, I & Lu, DD-C 2013, 'High Step-Up DC/DC Topology and MPPT Algorithm for Use With a Thermoelectric Generator', IEEE Transactions on Power Electronics, vol. 28, no. 7, pp. 3147-3157.
View/Download from: Publisher's site

Langston, C 2013, 'The role of coordinate-based decision-making in the evaluation of sustainable built environments', Construction Management and Economics, vol. 31, no. 1, pp. 62-77.
View/Download from: Publisher's site
View description>>

Existing environmental performance assessment approaches focus on the overall performance to reflect sustainability of built projects. However, the impacts caused by construction activities on the environment occur throughout a project's life cycle which may be different at different stages. Similarly, the economic benefits and social impacts from implementing a construction project may be different in different project stages. This paper presents a model of the sustainable development value (SDV), which integrates sustainability assessment into the building process. SDV measures the significance of the concerned project to the attainment of sustainable development values at different stages of a building life cycle, and the SDV at each stage will be amalgamated into the model of sustainable development ability (SDA). SDA is used as a prototype to demonstrate the extent of sustainable performance to aid decision making. This paper presents the methodological framework of SDV and SDA, and the implementation was demonstrated using a case study.

Laniak, GF, Olchin, G, Goodall, J, Voinov, A, Hill, M, Glynn, P, Whelan, G, Geller, G, Quinn, N, Blind, M, Peckham, S, Reaney, S, Gaber, N, Kennedy, R & Hughes, A 2013, 'Integrated environmental modeling: A vision and roadmap for the future', Environmental Modelling & Software, vol. 39, pp. 3-23.
View/Download from: Publisher's site

Laniak, GF, Rizzoli, AE & Voinov, A 2013, 'Thematic Issue on the Future of Integrated Modeling Science and Technology', Environmental Modelling & Software, vol. 39, pp. 1-2.
View/Download from: Publisher's site

Law, SS, Zhu, XQ, Tian, YJ, Li, XY & Wu, SQ 2013, 'Statistical damage classification method based on wavelet packet analysis', Structural Engineering and Mechanics, vol. 46, no. 4, pp. 459-486.
View/Download from: Publisher's site

Lawrence*, CG 2013, 'The urgency of monitoring salt consumption and its effects in Aboriginal and Torres Strait Islander Australians', Medical Journal of Australia, vol. 198, no. 7, pp. 365-366.
View/Download from: Publisher's site

Le, LB, Niyato, D, Hossain, E, Kim, DI & Hoang, DT 2013, 'QoS-Aware and Energy-Efficient Resource Management in OFDMA Femtocells', IEEE Transactions on Wireless Communications, vol. 12, no. 1, pp. 180-194.
View/Download from: Publisher's site

Lee, HJ, Gallego-Ortega, D, Ledger, A, Schramek, D, Joshi, P, Szwarc, MM, Cho, C, Lydon, JP, Khokha, R, Penninger, JM & Ormandy, CJ 2013, 'Progesterone drives mammary secretory differentiation via RankL-mediated induction of Elf5 in luminal progenitor cells', Development, vol. 140, no. 7, pp. 1397-1401.
View/Download from: Publisher's site
View description>>

Progesterone-RankL paracrine signaling has been proposed as a driver of stem cell expansion in the mammary gland, and Elf5 is essential for the differentiation of mammary epithelial progenitor cells. We demonstrate that Elf5 expression is induced by progesterone and that Elf5 and progesterone cooperate to promote alveolar development. The progesterone receptor and Elf5 are expressed in a mutually exclusive pattern, and we identify RankL as the paracrine mediator of the effects of progesterone on Elf5 expression in CD61+ progenitor cells and their consequent differentiation. Blockade of RankL action prevented progesterone-induced side branching and the expansion of Elf5+ mature luminal cells. These findings describe a mechanism by which steroid hormones can produce the expansion of steroid hormone receptor-negative mammary epithelial cells.

Lee, T & Roland, J 2013, 'A strong direct product theorem for quantum query complexity', computational complexity, vol. 22, no. 2, pp. 429-462.
View/Download from: Publisher's site

Lei, G, Zhu, JG, Guo, YG, Hu, JF, Xu, W & Shao, KR 2013, 'Robust Design Optimization of PM-SMC Motors for Six Sigma Quality Manufacturing', IEEE TRANSACTIONS ON MAGNETICS, vol. 49, no. 7, pp. 3953-3956.
View/Download from: Publisher's site
View description>>

In our previous work, soft magnetic composite (SMC) material was employed to design cores for two kinds of permanent magnet (PM) motors, namely transverse flux machine (TFM) and claw pole motor. Compared with motors designed by traditional silicon steel

Leijdekkers, P & Gay, V 2013, 'Mobile apps for chronic disease management: lessons learned from myFitnessCompanion®', Health and Technology, vol. 3, no. 2, pp. 111-118.
View/Download from: Publisher's site
View description>>

Nowadays, many health and fitness applications (apps) can be downloaded from app stores, changing the way people manage their health and chronic diseases. This paper reflects on 7 years of experience in mobile health and fitness app development. It analyzes the uptake of a health and fitness app, myFitnessCompanion®, by the healthcare industry and end-users dealing with chronic disease management. The use of myFitnessCompanion® is analyzed from an end-user perspective. The app is available via Google Play since February 2011 and the research presented is based on data collected from 5500+ users over a period of 7 months. The paper also discusses how mHealth apps could be distributed in the near future, as well as, the use of Personal Health Record (PHR) systems such as Microsoft HealthVault, and the impact of regulations on the future of mHealth apps. The conclusion highlights the challenges and opportunities for app developers in the mHealth industry

Lek, HS, Morrison, VL, Conneely, M, Campbell, PA, McGloin, D, Kliche, S, Watts, C, Prescott, A & Fagerholm, SC 2013, 'The Spontaneously Adhesive Leukocyte Function-associated Antigen-1 (LFA-1) Integrin in Effector T Cells Mediates Rapid Actin- and Calmodulin-dependent Adhesion Strengthening to Ligand under Shear Flow', Journal of Biological Chemistry, vol. 288, no. 21, pp. 14698-14708.
View/Download from: Publisher's site

Lemke, C, Riedel, S & Gabrys, B 2013, 'Evolving forecast combination structures for airline revenue management', Journal of Revenue and Pricing Management, vol. 12, no. 3, pp. 221-234.
View/Download from: Publisher's site
View description>>

Forecasting is at the heart of every revenue management system, providing necessary input to capacity control, pricing and overbooking functionalities. For airlines, the key to efficient capacity control is determining the time of when to restrict bookings in a lower-fare class to leave space for later booking high-fare customers. This work presents findings of a collaboration project between Bournemouth University and Lufthansa Systems AG, a company providing revenue management software for airline carriers. The main aim is to increase net booking forecast accuracy by modifying one of its components, the cancellation forecast. Complementing an available set of three traditional individual algorithms, an additional method is presented and added to the method pool. Furthermore, diversification of model parameters and level of learning is discussed to increase the number of individual forecasts even further. Finally, the evolution of forecast combination structures is investigated and shown to be beneficial on an airline data set. © 2013 Macmillan Publishers Ltd.

Leyendekkers, JV & Shannon, AG 2013, 'On the golden ratio', Advanced Studies in Contemporary Mathematics (Kyungshang), vol. 23, no. 1, pp. 195-201.
View description>>

The structure of the decimal expansion of the Golden Ratio is examined in decimal and modular forms through the use of various properties of the Fibonacci numbers, particularly the roots of the associated polynomial and the golden ratio. While the ratio Fn+1/Fn approaches the golden ratio it cannot have both terms even, whereas the ratio Fn+6/Fn can. The decimal string of the golden ratio is given in ratio and binomial forms and analysed with the modular ring Z4 and the sequential structure. The decimal part of the golden ratio is also related to pi.

Li, AD, Sun, ZZ, Zhou, M, Xu, XX, Ma, JY, Zheng, W, Zhou, HM, Li, L & Zheng, YF 2013, 'Electrospun Chitosan-graft-PLGA nanofibres with significantly enhanced hydrophilicity and improved mechanical property', Colloids and Surfaces B: Biointerfaces, vol. 102, pp. 674-681.
View/Download from: Publisher's site

Li, B, Chen, L, Zhu, X & Zhang, C 2013, 'Noisy but non-malicious user detection in social recommender systems', World Wide Web, vol. 16, no. 5-6, pp. 677-699.
View/Download from: Publisher's site
View description>>

Social recommender systems largely rely on user-contributed data to infer users' preference. While this feature has enabled many interesting applications in social networking services, it also introduces unreliability to recommenders as users are allowed to insert data freely. Although detecting malicious attacks from social spammers has been studied for years, little work was done for detecting Noisy but Non-Malicious Users (NNMUs), which refers to those genuine users who may provide some untruthful data due to their imperfect behaviors. Unlike colluded malicious attacks that can be detected by finding similarly-behaved user profiles, NNMUs are more difficult to identify since their profiles are neither similar nor correlated from one another. In this article, we study how to detect NNMUs in social recommender systems. Based on the assumption that the ratings provided by a same user on closely correlated items should have similar scores, we propose an effective method for NNMU detection by capturing and accumulating user's 'self-contradictions', i.e., the cases that a user provides very different rating scores on closely correlated items. We show that self-contradiction capturing can be formulated as a constrained quadratic optimization problem w.r.t. a set of slack variables, which can be further used to quantify the underlying noise in each test user profile. We adopt three real-world data sets to empirically test the proposed method. The experimental results show that our method (i) is effective in real-world NNMU detection scenarios, (ii) can significantly outperform other noisy-user detection methods, and (iii) can improve recommendation performance for other users after removing detected NNMUs from the recommender system. © 2012 Springer Science+Business Media, LLC.

Li, C, Liang, S, Zhang, J, Ngo, HH, Guo, W, Zheng, N & Zou, Y 2013, 'N2O reduction during municipal wastewater treatment using a two-sludge SBR system acclimatized with propionate', CHEMICAL ENGINEERING JOURNAL, vol. 222, pp. 353-360.
View/Download from: Publisher's site
View description>>

A two-sludge denitrifying phosphorus removal process (A2N-SBR), acclimatized with propionate, was proposed as an efficient method for nitrous oxide (N2O) reduction during municipal wastewater treatment. Compared with the conventional nitrification-denitrification process (AO-SBR) operated in parallel, the A2N-SBR not only significantly improved total nitrogen and soluble phosphorus removal efficiencies by around 32.3% and 23.5%, respectively, but also greatly reduced N2O generation by around 31.5%. Moreover, like the anoxic stage of AO-SBR, nearly zero N2O (merely 0.054% of the removed nitrogen) was generated during the anoxic stage of A2N-SBR. The substantial N2O reduction achieved in the proposed A2N-SBR can be reasonably explained by: (i) the use of independent nitrification reactor resulting in higher activity of nitrifying bacteria and no occurrence of heterotrophic denitrification in aerobic stage, and (ii) the use of propionate as carbon source decreasing nitrite accumulation in anoxic stage. © 2013 Elsevier B.V.

Li, C, Wang, T, Zheng, N, Zhang, J, Ngo, HH, Guo, W & Liang, S 2013, 'Influence of organic shock loads on the production of N2O in denitrifying phosphorus removal process', BIORESOURCE TECHNOLOGY, vol. 141, no. 1, pp. 160-166.
View/Download from: Publisher's site
View description>>

In this work, the influences of short-term organic shock loads on N2O production during denitrifying phosphorus removal were investigated by changing the influent COD concentrations (100, 200, 350, and 500mg/L). After switching the COD concentrations from 200 to 350 or 500mg/L, N2O-N production amount increased from 1.62% to 7.12% or 3.29% of the TN removal, respectively, while the corresponding effluent phosphorus concentrations increased from 1.84 to 16.55 and 56.08mg/L, respectively, which were higher than the influent phosphorus concentration (4.93mg/L). Furthermore, when the COD concentration was decreased to 100mg/L, N2O-N production amount was only 1.20%. All results suggested that higher organic shock loads increased N2O production. The main reason was that higher organic shock loads increased anaerobic poly-β-hydroxyalkanoates (PHA) synthesis, which resulted in higher nitrite accumulation. The influences of higher organic shock loads on N2O production could be minimized by adopting continuous nitrate addition strategy. © 2013 Elsevier Ltd.

Li, C, Zhang, J, Liang, S, Ngo, HH, Guo, W, Zhang, Y & Zou, Y 2013, 'Nitrous oxide generation in denitrifying phosphorus removal process: main causes and control measures', ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, vol. 20, no. 8, pp. 5353-5360.
View/Download from: Publisher's site
View description>>

Despite the many benefits of denitrifying phosphorus removal process, the significant generation of nitrous oxide (N2O), a potent greenhouse gas, remains a problem for this innovative and promising process. To better understand and more effectively control N2O generation in denitrifying phosphorus removal process, batch experiments were carried out to investigate the main causes of N2O generation, based on which the control measures were subsequently proposed. The results showed that N2O generation accounted for 0.41 % of the total nitrogen removal in denitrifying phosphorus removal process, whereas, in contrast, almost no N2O was generated in conventional denitrification process. It was further demonstrated that the weak competition of N2O reductase for electrons and the high nitrite accumulation were the two main causes for N2O generation, evidenced by N2O production and reduction rates under different conditions. Accordingly, the reduction of N2O generation was successfully achieved via two control measures: (1) the use of continuous nitrate addition reducing N2O generation by around 91.4 % and (2) the use of propionate as the carbon source reducing N2O generation by around 69.8 %. © 2013 Springer-Verlag Berlin Heidelberg.

Li, F, Luo, Z, Rong, J & Hu, L 2013, 'A Non-Probabilistic reliability-Based optimization of structures using convex models', CMES - Computer Modeling in Engineering and Sciences, vol. 95, no. 6, pp. 453-482.
View description>>

This paper aims to propose a non-probabilistic reliability-based multi-objective optimization method for structures with uncertain-but-bounded parameters. A combination of the interval and ellipsoid convex models is used to account for the different groups of uncertain parameters, in which the interval model accounts for uncorrelated parameters, while the ellipsoid model is applied to correlated parameters. The design is then formulated as a nested double-loop optimization problem. A multi-objective genetic algorithm is used in the out loop optimization to optimize the design vector for evaluating the objectives, and the Sequential Quadratic Programming (SQP) algorithm is applied in the inner loop to evaluate the uncertain vector and non-probabilistic reliability index. Since the double-loop process for most engineering problems is computationally prohibitive, the polynomial response surface method (RSM) is applied to construct a surrogate model for the approximation of the objective functions and constraints, in order to improve the computational efficiency. In this way, a new reliability-based optimization method is established as a nature combination of the non-probabilistic multi-objective optimization method using convex models with the surrogate model. Typical numerical examples and a practical engineering application are used to demonstrate the effectiveness of the proposed optimization method. © 2013 Tech Science Press.

Li, F, Luo, Z, Rong, J & Zhang, N 2013, 'Interval multi-objective optimisation of structures using adaptive Kriging approximations', Computers & Structures, vol. 119, no. 1, pp. 68-84.
View/Download from: Publisher's site
View description>>

This paper proposes an interval uncertain multi-objective optimisation (IUMOO) method for structures with uncertain-but-bounded parameters. An adaptive Kriging model is established to improve the computational efficiency and numerical accuracy in the approximation of design functions. Latin Hypercube Design (LHD) is applied to achieve a set of sampling points both in the design and uncertain spaces for calibrating the Kriging surrogate model. The interval number programming method is used to transform the uncertain optimisation into a corresponding deterministic multi-objective optimisation. Typical numerical examples are used to demonstrate the effectiveness of the proposed methodology.

Li, F, Luo, Z, Sun, G & Zhang, N 2013, 'An uncertain multidisciplinary design optimization method using interval convex models', Engineering Optimization, vol. 45, no. 6, pp. 697-718.
View/Download from: Publisher's site
View description>>

This article proposes an uncertain multi-objective multidisciplinary design optimization methodology, which employs the interval model to represent the uncertainties of uncertain-but-bounded parameters. The interval number programming method is applied to transform each uncertain objective function into two deterministic objective functions, and a satisfaction degree of intervals is used to convert both the uncertain inequality and equality constraints to deterministic inequality constraints. In doing so, an unconstrained deterministic optimization problem will be constructed in association with the penalty function method. The design will be finally formulated as a nested three-loop optimization, a class of highly challenging problems in the area of engineering design optimization.An advanced hierarchical optimization scheme is developed to solve the proposed optimization problem based on the multidisciplinary feasible strategy, which is a wellstudied method able to reduce the dimensions of multidisciplinary design optimization problems by using the design variables as independent optimization variables. In the hierarchical optimization system, the non-dominated sorting genetic algorithm II, sequential quadratic programming method and GaussSeidel iterative approach are applied to the outer, middle and inner loops of the optimization problem, respectively. Typical numerical examples are used to demonstrate the effectiveness of the proposed methodology.

Li, H, Jiang, Z, Wei, D & Zhang, X 2013, 'Microtexture based analysis of surface asperity flattening behavior of annealed aluminum alloy in uniaxial planar compression', Tribology International, vol. 66, pp. 282-288.
View/Download from: Publisher's site
View description>>

During the uniaxial planar compression of annealed aluminum alloy, a novel approach to determine surface asperity flattening (roughness R-a) is employed by analyzing the evolution of surface microtexture. With an increase in gauged reduction, surface asperity tends to be flattened, and strain hardening increases. Lubrication can constrain the surface asperity flattening process. Development of surface asperity features shows the obvious dependency on [111] orientation. In-grain slips contribute significantly to the evolution of surface microtexture. Influence of deformation twins (brass orientation) on the evolution of microtexture is not obvious under our current experimental conditions.

Li, HJ, Jiang, ZY & Wei, DB 2013, 'Study on effect of strain rate on 3D surface asperity flattening in uniaxial planar compression by crystal plasticity finite element modelling', Wear, vol. 301, no. 1-2, pp. 11-18.
View/Download from: Publisher's site
View description>>

As an important parameter of surface quality for metal manufacturing products, surface roughness is affected by the following parameters: original roughness, friction, grain size, grain orientation, stress-strain state, and work hardening. Previously, effects of friction and gauged reduction and wavelength on surface roughness have already been studied by a 2D surface asperity model in uniaxial planar compression. On the basis of previous results, a 3D surface asperity model is developed by employing rate-dependent crystal plasticity constitutive model in finite element software ABAQUS. Results from electron back scatter diffraction(EBSD) and atomic force microscope(AFM) experiments have also been input into the 3D model. Influences of strain rate and texture have been discussed in this paper. The calculated results show a good agreement with experimental results. With an increase of reduction, the surface asperity flattening under a lower strain rate tends to accelerate; grain size and roughness decrease while hardness and stress increase. Under the same reduction, surface roughness with higher strain rate 0.01 s(-1) has a larger flattening rate (lower roughness R-a) than that of surface roughness with lower strain rate 0.001 s(-1). In this study, increased strain rate has no obvious effect on texture.

Li, J & Hao, H 2013, 'Influence of brittle shear damage on accuracy of the two-step method in prediction of structural response to blast loads', International Journal of Impact Engineering, vol. 54, pp. 217-231.
View/Download from: Publisher's site
View description>>

A two-step numerical approach, which substantially reduces the modelling and computational effort in analysing structural responses to blast loads, was recently proposed. The method solves the responses of the equivalent SDOF system of a structural component during the blast loading phase to obtain the structural displacement and velocity at the end of the blast loading duration. Using these displacements and velocities as initial conditions, a detailed FE model is developed to solve the free-vibration response of the structure. It has been demonstrated that this approach yields very good predictions of structural displacement and longitudinal reinforcement stress at the mid span of RC beams. The accuracy in predicting the stresses in hoop reinforcements near the supports however varies from case to case. One possible reason for this inconsistency in predicting the stresses in hoop reinforcements near the supports is because of the brittle shear damage occurring near the structure supports during the loading phase, which is not considered in the second step free-vibration analysis in the proposed two-step method. To further improve the accuracy of the two-step method, in this paper, the influence of possible brittle shear damage during the blast loading phase is estimated, which will be included in the second step free-vibration analysis to improve the prediction accuracy of the two-step method. Pressure-Impulse diagrams for generic RC beams are generated for straightforward evaluation of the initial damage and the width of the initial damage zone at the end of the blast loading phase for inclusion in the second-step analysis. It is demonstrated that including damage caused by blast loads in the loading phase in the second step free-vibration analysis improves the prediction accuracy of the beam responses to blast loadings. © 2012 Elsevier Ltd. All rights reserved.

Li, J & Hao, H 2013, 'Numerical study of structural progressive collapse using substructure technique', Engineering Structures, vol. 52, pp. 101-113.
View/Download from: Publisher's site
View description>>

During their service life, modern structures may experience extreme loading conditions. Large loads generated from bomb explosion may have catastrophic consequences with a large number of casualties as well as great economical loss. Ever since the terrorist attack of 2001, great safety concerns have been raised for urban areas where more and more high-rise buildings have been erected and thus are more prone to suffer the potential threat. Among all the structural responses to blast loads, the catastrophic progressive collapse has attracted great attention around the world. Experimental studies on this topic are not only expensive but also are often prohibited due to safety concerns. With the advancement of computational mechanics techniques and computer power, reliable computer simulations of structural response and collapse to blast loads become possible. However, even with modern computer power, such computer simulations are still extremely time and resource consuming. In this paper, a new numerical approach that incorporates static condensation into the FE model is presented to simulate blast load induced structural response and progressive collapse. Two 6-story RC frame buildings are used as examples to demonstrate the efficiency of the proposed method. For comparison, direct finite element modeling of the same example frame structure is also carried out. Comparing the results from both approaches, it is found that the proposed method is efficient and reliable in simulating the structural response and progressive collapse with substantially less computational effort as compared to the direct FE model simulations. © 2013 Elsevier Ltd.

Li, J & Tao, D 2013, 'A Bayesian Hierarchical Factorization Model for Vector Fields.', IEEE Trans. Image Process., vol. 22, no. 11, pp. 4510-4521.
View/Download from: Publisher's site
View description>>

Factorization-based techniques explain arrays of observations using a relatively small number of factors and provide an essential arsenal for multi-dimensional data analysis. Most factorization models are, however, developed on general arrays of scalar values. For a class of practical data arising from observing spatial signals including images, it is desirable for a model to consider general observations, e.g., handling a vector field and non-exchangeable factors, e.g., handling spatial connections between the columns and the rows of the data. In this paper, a probabilistic model for factorization is proposed. We adopt Bayesian hierarchical modeling and treat the factors as latent random variables. A Markov structure is imposed on the distribution of factors to account for the spatial connections. The model is designed to represent vector arrays sampled from fields of continuous domains. Therefore, a tailored observation model is developed to represent the link between the factor product and the data. The proposed technique has been shown effective in analyzing optical flow fields computed on both synthetic images and real-life videoclips. © 2013 IEEE.

Li, J & Tao, D 2013, 'Exponential Family Factors for Bayesian Factor Analysis.', IEEE Trans. Neural Networks Learn. Syst., vol. 24, no. 6, pp. 964-976.
View/Download from: Publisher's site
View description>>

Expressing data as linear functions of a small number of unknown variables is a useful approach employed by several classical data analysis methods, e.g., factor analysis, principal component analysis, or latent semantic indexing. These models represent the data using the product of two factors. In practice, one important concern is how to link the learned factors to relevant quantities in the context of the application. To this end, various specialized forms of the factors have been proposed to improve interpretability. Toward developing a unified view and clarifying the statistical significance of the specialized factors, we propose a Bayesian model family. We employ exponential family distributions to specify various types of factors, which provide a unified probabilistic formulation. A Gibbs sampling procedure is constructed as a general computation routine. We verify the model by experiments, in which the proposed model is shown to be effective in both emulating existing models and motivating new model designs for particular problem settings. © 2012 IEEE.

Li, J & Tao, D 2013, 'Simple Exponential Family PCA.', IEEE Trans. Neural Networks Learn. Syst., vol. 24, no. 3, pp. 485-497.
View/Download from: Publisher's site
View description>>

Principal component analysis (PCA) is a widely used model for dimensionality reduction. In this paper, we address the problem of determining the intrinsic dimensionality of a general type data population by selecting the number of principal components for a generalized PCA model. In particular, we propose a generalized Bayesian PCA model, which deals with general type data by employing exponential family distributions. Model selection is realized by empirical Bayesian inference of the model. We name the model as simple exponential family PCA (SePCA), since it embraces both the principal of using a simple model for data representation and the practice of using a simplified computational procedure for the inference. Our analysis shows that the empirical Bayesian inference in SePCA formally realizes an intuitive criterion for PCA model selection - a preserved principal component must sufficiently correlate to data variance that is uncorrelated to the other principal components. Experiments on synthetic and real data sets demonstrate effectiveness of SePCA and exemplify its characteristics for model selection. © 2013 IEEE.

Li, J, Bian, W, Tao, D & Zhang, C 2013, 'Learning colours from textures by sparse manifold embedding.', Signal Process., vol. 93, no. 6, pp. 1485-1495.
View/Download from: Publisher's site
View description>>

The capability of inferring colours from the texture (grayscale contents) of an image is useful in many application areas, when the imaging device/environment is limited. Traditional manual or limited automatic colour assignment involves intensive human effort. In this paper, we have developed a user-friendly colourisation technique, where the algorithm learns the relation between textures and colours in a user-provided example image and applies the relation to predict the colours in the target image. The key contribution of the proposed technique is trifold. First, we have explicitly built a linear model for the texture-colour relation. Second, we have considered the global non-linear structure of the data distribution by applying the linear model locally; and the local area is determined automatically by sparsity constraints. Third, we have introduced semantic information to further improve the colourisation. Examples demonstrate the effectiveness of the proposed techniques. Moreover, we have conducted a subjective study, where user experience supports the superiority of our method over existing techniques. © 2012 Elsevier B.V.

Li, J, Li, J, Wang, H, Cheng, B, He, B, Yan, F, Yang, Y, Guo, W & Ngo, HH 2013, 'ChemInform Abstract: Electrocatalytic Oxidation of n‐Propanol to Produce Propionic Acid Using an Electrocatalytic Membrane Reactor.', ChemInform, vol. 44, no. 37, pp. no-no.
View/Download from: Publisher's site
View description>>

AbstractAn electrocatalytic membrane reactor assembled using a nano‐MnO2 loading microporous Ti membrane as an anode and a tubular stainless steel as a cathode is used to oxidize PrOH to produce propionic acid.

Li, J, Li, J, Wang, H, Cheng, B, He, B, Yan, F, Yang, Y, Guo, W & Ngo, HH 2013, 'Electrocatalytic oxidation of n-propanol to produce propionic acid using an electrocatalytic membrane reactor', CHEMICAL COMMUNICATIONS, vol. 49, no. 40, pp. 4501-4503.
View/Download from: Publisher's site
View description>>

An electrocatalytic membrane reactor assembled using a nano-MnO2 loading microporous Ti membrane as an anode and a tubular stainless steel as a cathode was used to oxidize n-propanol to produce propionic acid. The high efficiency and selectivity obtained is related to the synergistic effect between the reaction and separation in the reactor.

Li, J, Wang, C, Wei, W, Li, M & Liu, C 2013, 'Efficient Mining of Contrast Patterns on Large Scale Imbalanced Real-Life Data', Lecture Notes in Computer Science, vol. 7818, no. 1, pp. 62-73.
View/Download from: Publisher's site
View description>>

Contrast pattern mining has been studied intensively for its strong discriminative capability. However, the state-of-the-art methods rarely consider the class imbalanced problem, which has been proved to be a big challenge in mining large scale data. This paper introduces a novel pattern, i.e. converging pattern, which refers to the itemsets whose supports contrast sharply from the minority class to the majority one. A novel algorithm, ConvergMiner, which adopts T*-tree and branch bound pruning strategies to mine converging patterns efficiently, is proposed. Substantial experiments in online banking fraud detection show that the ConvergMiner greatly outperforms the existing cost-sensitive classification methods in terms of predicative accuracy. In particular, the efficiency improves with the increase of data imbalance.

Li, JJ, Gil, ES, Hayden, RS, Li, C, Roohani-Esfahani, S-I, Kaplan, DL & Zreiqat, H 2013, 'Multiple Silk Coatings on Biphasic Calcium Phosphate Scaffolds: Effect on Physical and Mechanical Properties and In Vitro Osteogenic Response of Human Mesenchymal Stem Cells', Biomacromolecules, vol. 14, no. 7, pp. 2179-2188.
View/Download from: Publisher's site
View description>>

Ceramic scaffolds such as biphasic calcium phosphate (BCP) have been widely studied and used for bone regeneration, but their brittleness and low mechanical strength are major drawbacks. We report the first systematic study on the effect of silk coating in improving the mechanical and biological properties of BCP scaffolds, including (1) optimization of the silk coating process by investigating multiple coatings, and (2) in vitro evaluation of the osteogenic response of human mesenchymal stem cells (hMSCs) on the coated scaffolds. Our results show that multiple silk coatings on BCP ceramic scaffolds can achieve a significant coating effect to approach the mechanical properties of native bone tissue and positively influence osteogenesis by hMSCs over an extended period. The silk coating method developed in this study represents a simple yet effective means of reinforcement that can be applied to other types of ceramic scaffolds with similar microstructure to improve osteogenic outcomes.

Li, K, Safavi-Naeini, M, Franklin, DR, Petasecca, M, Guatelli, S, Rosenfeld, AB, Hutton, BF & Lerch, MLF 2013, 'A feasibility study of PETiPIX: an ultra high resolution small animal PET scanner', JOURNAL OF INSTRUMENTATION, vol. 8, no. 12, pp. 1-15.
View/Download from: Publisher's site
View description>>

PETiPIX is an ultra high spatial resolution positron emission tomography (PET) scanner designed for imaging mice brains. Four Timepix pixellated silicon detector modules are placed in an edge-on configuration to form a scanner with a field of view (FoV) 15 mm in diameter. Each detector module consists of 256 × 256 pixels with dimensions of 55 × 55 × 300 µm3. Monte Carlo simulations using GEANT4 Application for Tomographic Emission (GATE) were performed to evaluate the feasibility of the PETiPIX design, including estimation of system sensitivity, angular dependence, spatial resolution (point source, hot and cold phantom studies) and evaluation of potential detector shield designs. Initial experimental work also established that scattered photons and recoil electrons could be detected using a single edge-on Timepix detector with a positron source. Simulation results estimate a spatial resolution of 0.26 mm full width at half maximum (FWHM) at the centre of FoV and 0.29 mm FWHM overall spatial resolution with sensitivity of 0.01%, and indicate that a 1.5 mm thick tungsten shield parallel to the detectors will absorb the majority of non-coplanar annihilation photons, significantly reducing the rates of randoms. Results from the simulated phantom studies demonstrate that PETiPIX is a promising design for studies demanding high resolution images of mice brains.

Li, L, Xu, G, Yang, Z, Dolog, P, Zhang, Y & Kitsuregawa, M 2013, 'An efficient approach to suggesting topically related web queries using hidden topic model', World Wide Web, vol. 16, no. 3, pp. 273-297.
View/Download from: Publisher's site
View description>>

Keyword-based Web search is a widely used approach for locating information on the Web. However, Web users usually suffer from the difficulties of organizing and formulating appropriate input queries due to the lack of sufficient domain knowledge, which greatly affects the search performance. An effective tool to meet the information needs of a search engine user is to suggest Web queries that are topically related to their initial inquiry. Accurately computing query-to-query similarity scores is a key to improve the quality of these suggestions. Because of the short lengths of queries, traditional pseudo-relevance or implicit-relevance based approaches expand the expression of the queries for the similarity computation. They explicitly use a search engine as a complementary source and directly extract additional features (such as terms or URLs) from the top-listed or clicked search results. In this paper, we propose a novel approach by utilizing the hidden topic as an expandable feature. This has two steps. In the offline model-learning step, a hidden topic model is trained, and for each candidate query, its posterior distribution over the hidden topic space is determined to re-express the query instead of the lexical expression. In the online query suggestion step, after inferring the topic distribution for an input query in a similar way, we then calculate the similarity between candidate queries and the input query in terms of their corresponding topic distributions; and produce a suggestion list of candidate queries based on the similarity scores. Our experimental results on two real data sets show that the hidden topic based suggestion is much more efficient than the traditional term or URL based approach, and is effective in finding topically related queries for suggestion. © 2011 Springer Science+Business Media, LLC.

Li, Q, Wang, XC, Zhang, HH, Shi, HL, Hu, T & Ngo, HH 2013, 'Characteristics of nitrogen transformation and microbial community in an aerobic composting reactor under two typical temperatures', BIORESOURCE TECHNOLOGY, vol. 137, pp. 270-277.
View/Download from: Publisher's site
View description>>

Batch experiments were conducted for feces composting using an aerobic composting reactor with sawdust as bulky matrix. In the 14-day composting processes at 35 ± 2 and 55 ± 2 C, compost samples were collected daily and chemical analyses and PCR-DGGE were carried out for investigating the influence of composting temperature on organic decomposition, nitrogen transformation, and microbial communities. At 55 ± 2 C, in addition to a slightly higher COD removal, nitrogen loss was greatly restrained. As organic nitrogen took about 85% of the total nitrogen originated from human feces, the suppression of ammonification process under thermophilic environment might be the main reason for less nitrogen loss at 55 ± 2 C. By PCR-DGGE analysis, the microbial community was found to undergo successions differently at 35 ± 2 and 55 ± 2 C. Certain sequences identified from the compost at 55 ± 2 C represented the microbial species which could perform nitrogen-fixation or sustain a lower pH in the compost so that gaseous ammonia emission was suppressed.

Li, S, Liu, W & Wang, S 2013, 'Qualitative constraint satisfaction problems: An extended framework with landmarks', Artificial Intelligence, vol. 201, no. 1, pp. 32-58.
View/Download from: Publisher's site
View description>>

Dealing with spatial and temporal knowledge is an indispensable part of almost all aspects of human activity. The qualitative approach to spatial and temporal reasoning, known as Qualitative Spatial and Temporal Reasoning (QSTR), typically represents spatial/temporal knowledge in terms of qualitative relations (e.g., to the east of, after), and reasons with spatial/temporal knowledge by solving qualitative constraints. When formulating qualitative constraint satisfaction problems (CSPs), it is usually assumed that each variable could be 'here, there and everywhere'.1 Practical applications such as urban planning, however, often require a variable to take its value from a certain finite domain, i.e. it is required to be 'here or there, but not everywhere'. Entities in such a finite domain often act as reference objects and are called 'landmarks' in this paper. The paper extends the classical framework of qualitative CSPs by allowing variables to take values from finite domains. The computational complexity of the consistency problem in this extended framework is examined for the five most important qualitative calculi, viz. Point Algebra, Interval Algebra, Cardinal Relation Algebra, RCC5, and RCC8. We show that all these consistency problems remain in NP and provide, under practical assumptions, efficient algorithms for solving basic constraints involving landmarks for all these calculi. © 2013 Elsevier B.V.

Li, S-Y, Yang, C-H, Chen, S-A, Ko, L-W & Lin, C-T 2013, 'Fuzzy adaptive synchronization of time-reversed chaotic systems via a new adaptive control strategy', Information Sciences, vol. 222, pp. 486-500.
View/Download from: Publisher's site
View description>>

A novel adaptive control strategy is proposed herein to increase the efficiency of adaptive control by combining Takagi-Sugeno (T-S) fuzzy modeling and the Ge-Yao-Chen (GYC) partial region stability theory. This approach provides two major contributions: (1) increased synchronization efficiency, especially for parameters tracing and (2) a simpler controller design. Two simulated cases are presented for comparison: Case 1 utilizes normal adaptive synchronization, whereas Case 2 utilizes the Takagi-Sugeno (T-S) fuzzy model-based Lorenz systems to realize adaptive synchronization via the new adaptive scheme. The simulation results demonstrate the effectiveness and feasibility of our new adaptive strategy. © 2012 Elsevier Inc. All rights reserved.

Li, Y, Jia, W, Shen, C & Hengel, AVD 2013, 'Characterness: An Indicator of Text in the Wild', IEEE Transactions on Image Processing, vol. 23, no. 4, pp. 1666-1677.
View/Download from: Publisher's site
View description>>

Text in an image provides vital information for interpreting its contents,and text in a scene can aide with a variety of tasks from navigation, toobstacle avoidance, and odometry. Despite its value, however, identifyinggeneral text in images remains a challenging research problem. Motivated by theneed to consider the widely varying forms of natural text, we propose abottom-up approach to the problem which reflects the `characterness' of animage region. In this sense our approach mirrors the move from saliencydetection methods to measures of `objectness'. In order to measure thecharacterness we develop three novel cues that are tailored for characterdetection, and a Bayesian method for their integration. Because text is made upof sets of characters, we then design a Markov random field (MRF) model so asto exploit the inherent dependencies between characters. We experimentally demonstrate the effectiveness of our characterness cues aswell as the advantage of Bayesian multi-cue integration. The proposed textdetector outperforms state-of-the-art methods on a few benchmark scene textdetection datasets. We also show that our measurement of `characterness' issuperior than state-of-the-art saliency detection models when applied to thesame task.

Li, Y, Li, J & Samali, B 2013, 'On the magnetic field and temperature monitoring of a solenoid coil for a novel magnetorheological elastomer base isolator', 13TH INTERNATIONAL CONFERENCE ON ELECTRORHEOLOGICAL FLUIDS AND MAGNETORHEOLOGICAL SUSPENSIONS (ERMR2012), vol. 412, no. 1, pp. 1-7.
View/Download from: Publisher's site
View description>>

Following a successful experimental validation of a magnetorheological elastomer (MRE) base isolator, this study presents one of the major concerns, the heating of the magnetic coil, in the design and development of the adaptive MRE based isolator. In this research, the MRE materials, with a total thickness of nearly 150 mm, are placed as the magnetic core of the device to best utilize the magnetic energy provided by the coil. A series of tests are undertaken to investigate the magnetic fields inside the coil with or without the MRE materials. Thermocouples are used to monitoring the surface temperature of the coil when it is applied with various currents for 10 min. It is shown that the measurement of field inside the solenoid when no MRE is placed inside agrees with the theoretical analysis. It is also shown that the temperature of the coil increase dramatically when a current is applied. Cooling of the coil may takes even longer, about 4 h, till down to the room temperature. Dropping of the magnetic field is observed when the temperature goes high. © Published under licence by IOP Publishing Ltd.

Li, Y, Li, J, Li, W & Samali, B 2013, 'Development and characterization of a magnetorheological elastomer based adaptive seismic isolator', SMART MATERIALS AND STRUCTURES, vol. 22, no. 3, pp. 1-12.
View/Download from: Publisher's site
View description>>

One of the main shortcomings in current base isolation design/practice is lack of adaptability. As a result, a base isolation system that is effective for one type earthquake may become ineffective or may have adverse effect for other earthquakes. The vulnerability of traditional base isolation systems can be exaggerated by two types of earthquakes, i.e. near-field earthquakes and far-field earthquakes. This paper addresses the challenge facing current base isolation design/practice by proposing a new type of seismic isolator for the base isolation system, namely an adaptive seismic isolator. The novel adaptive seismic isolator utilizes magnetorheological elastomer (MRE) for its field-sensitive material property. Traditional seismic isolator design with a unique laminated structure of steel and MRE layers has been adopted in the novel MRE seismic isolator. To evaluate and characterize the behavior of the MRE seismic isolator, experimental testing was conducted on a shake table facility under harmonic cycling loading. Experimental results show that the proposed adaptive seismic isolator can successfully alter the lateral stiffness and damping force in real time up to 37% and 45% respectively. Based on the successful development of the novel adaptive seismic isolator, a discussion is also extended to the impact and potential applications of such a device in structural control applications in civil engineering. © 2013 IOP Publishing Ltd.

Li, Y, Li, J, Tian, T & Li, W 2013, 'A highly adjustable magnetorheological elastomer base isolator for applications of real-time adaptive control', SMART MATERIALS AND STRUCTURES, vol. 22, no. 9, pp. 1-18.
View/Download from: Publisher's site
View description>>

Inspired by its controllable and field-dependent stiffness/damping properties, there has been increasing research and development of magnetorheological elastomer (MRE) for mitigation of unwanted structural or machinery vibrations using MRE isolators or absorbers. Recently, a breakthrough pilot research on the development of a highly innovative prototype adaptive MRE base isolator, with the ability for real-time adaptive control of base isolated structures against various types of earthquakes including near- or far-fault earthquakes, has been reported by the authors. As a further effort to improve the proposed MRE adaptive base isolator and to address some of the shortcomings and challenges, this paper presents systematic investigations on the development of a new highly adjustable MRE base isolator, including experimental testing and characterization of the new isolator. A soft MR elastomer has been designed, fabricated and incorporated in the laminated structure of the new MRE base isolator, which aims to obtain a highly adjustable shear modulus under a medium level of magnetic field. Comprehensive static and dynamic testing was conducted on this new adaptive MRE base isolator to examine its characteristics and evaluate its performance. The experimental results show that this new MRE base isolator can remarkably change the lateral stiffness of the isolator up to 1630% under a medium level of magnetic field. Such highly adjustable MRE base isolator makes the design and implementation of truly real-time adaptive (e.g. semi-active or smart passive) seismic isolation systems become feasible. © 2013 IOP Publishing Ltd.

Li, Y-F, Tsang, IW, Kwok, JT & Zhou, Z-H 2013, 'Convex and Scalable Weakly Labeled SVMs', Journal of Machine Learning Research, vol. 2013, no. 1, pp. 14-2188.
View description>>

In this paper, we study the problem of learning from weakly labeled data,where labels of the training examples are incomplete. This includes, forexample, (i) semi-supervised learning where labels are partially known; (ii)multi-instance learning where labels are implicitly known; and (iii) clusteringwhere labels are completely unknown. Unlike supervised learning, learning withweak labels involves a difficult Mixed-Integer Programming (MIP) problem.Therefore, it can suffer from poor scalability and may also get stuck in localminimum. In this paper, we focus on SVMs and propose the WellSVM via a novellabel generation strategy. This leads to a convex relaxation of the originalMIP, which is at least as tight as existing convex Semi-Definite Programming(SDP) relaxations. Moreover, the WellSVM can be solved via a sequence of SVMsubproblems that are much more scalable than previous convex SDP relaxations.Experiments on three weakly labeled learning tasks, namely, (i) semi-supervisedlearning; (ii) multi-instance learning for locating regions of interest incontent-based information retrieval; and (iii) clustering, clearly demonstrateimproved performance, and WellSVM is also readily applicable on large datasets.

Li, Z, He, Y, Liu, Q, Zhao, L, Wong, L, Kwoh, CK, Nguyen, H & Li, J 2013, 'Structural analysis on mutation residues and interfacial water molecules for human TIM disease understanding', BMC BIOINFORMATICS, vol. 14, no. SUPPL16, pp. 1-15.
View/Download from: Publisher's site
View description>>

Background: Human triosephosphate isomerase (HsTIM) deficiency is a genetic disease caused often by the pathogenic mutation E104D. This mutation, located at the side of an abnormally large cluster of water in the inter-subunit interface, reduces the thermostability of the enzyme. Why and how these water molecules are directly related to the excessive thermolability of the mutant have not been investigated in structural biology.Results: This work compares the structure of the E104D mutant with its wild type counterparts. It is found that the water topology in the dimer interface of HsTIM is atypical, having a 'wet-core-dry-rim' distribution with 16 water molecules tightly packed in a small deep region surrounded by 22 residues including GLU104. These water molecules are co-conserved with their surrounding residues in non-archaeal TIMs (dimers) but not conserved across archaeal TIMs (tetramers), indicating their importance in preserving the overall quaternary structure. As the structural permutation induced by the mutation is not significant, we hypothesize that the excessive thermolability of the E104D mutant is attributed to the easy propagation of atoms' flexibility from the surface into the core via the large cluster of water. It is indeed found that the B factor increment in the wet region is higher than other regions, and, more importantly, the B factor increment in the wet region is maintained in the deeply buried core. Molecular dynamics simulations revealed that for the mutant structure at normal temperature, a clear increase of the root-mean-square deviation is observed for the wet region contacting with the large cluster of interfacial water. Such increase is not observed for other interfacial regions or the whole protein. This clearly suggests that, in the E104D mutant, the large water cluster is responsible for the subunit interface flexibility and overall thermolability, and it ultimately leads to the deficiency of this enzyme.Conclusions: O...

Li, Z, Wang, W, Wang, Y, Chen, F & Wang, Y 2013, 'Visual tracking by proto-objects', Pattern Recognition, vol. 46, no. 8, pp. 2187-2201.
View/Download from: Publisher's site

Liao, L-D & Lin, C-T 2013, '<I>Journal of Neuroscience and Neuroengineering</I> Best Paper Award 2012', Journal of Neuroscience and Neuroengineering, vol. 2, no. 1, pp. 1-2.
View/Download from: Publisher's site

Liao, L-D, Chen, B-W, Tseng, KC, Ko, L-W, Wang, I-J, Chen, S-A, Chang, J-Y & Lin, C-T 2013, 'Design and Implementation of Wearable and Wireless Multi-Channel Brain-Computer Interface with the Novel Dry Sensors', Journal of Neuroscience and Neuroengineering, vol. 2, no. 5, pp. 477-484.
View/Download from: Publisher's site

Liao, SH, Han, MF, Chang, JY & Lin, CT 2013, 'Study on adaptive least trimmed squares fuzzy neural network', International Journal of Fuzzy Systems, vol. 15, no. 3, pp. 338-346.
View description>>

In the largest samplings of data, outliers are observations that are well separated from the major samples. To deal with outlier problems, a least trimmed squares (LTS) estimator is developed for robust linear regression problems. It is meaningful to generalize the LTS estimator to fuzzy neural network (FNN) for robust nonlinear regression problems. In addition, the determination of the trimming constant is important when using the LTS estimator. In this paper, we propose the use of an adaptive least trimmed squares fuzzy neural network (ALTS-FNN), which applies a scale estimate to a LTS-FNN. This paper particularly emphasizes the robustness of the proposed network against outliers and an automatic determination of the trimming percentage. Simulation problems are provided to compare the performance of the proposed ALTS-FNN, with an LTS-FNN and typical FNN. Simulation results show that the proposed ALTS-FNN is highly robust against outliers. © 2013 TFSA.

Liaquat, AM, Masjuki, HH, Kalam, MA, Fattah, IMR, Hazrat, MA, Varman, M, Mofijur, M & Shahabuddin, M 2013, 'Effect of Coconut Biodiesel Blended Fuels on Engine Performance and Emission Characteristics', Procedia Engineering, vol. 56, pp. 583-590.
View/Download from: Publisher's site

Liaquat, AM, Masjuki, HH, Kalam, MA, Fazal, MA, Khan, AF, Fayaz, H & Varman, M 2013, 'Impact of palm biodiesel blend on injector deposit formation', Applied Energy, vol. 111, pp. 882-893.
View/Download from: Publisher's site

Lieber, D, Erohin, O & Deuse, J 2013, 'Wissensentdeckung im industriellen Kontext', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 6, pp. 388-393.
View/Download from: Publisher's site
View description>>

Kurzfassung Die effektive Nutzung der Ressource Wissen zur Entscheidungsunterstützung in Produktions- und Planungsprozessen ist heute für den Unternehmenserfolg von höchster Bedeutung. Moderne Informationstechnologien ermöglichen eine strukturierte digitale Speicherung großer Datenmengen, ihre effiziente Auswertung zwecks Wissensentdekkung wird jedoch selten fokussiert. Im Beitrag wird ein systematisches Vorgehen zur Wissensentdeckung im Kontext industrieller Produktion dargestellt und anhand von Anwendungsbeispielen erläutert.

Lin, C-L, Jung, T-P, Chuang, S-W, Duann, J-R, Lin, C-T & Chiu, T-W 2013, 'Self-adjustments may account for the contradictory correlations between HRV and motion-sickness severity', International Journal of Psychophysiology, vol. 87, no. 1, pp. 70-80.
View/Download from: Publisher's site
View description>>

This study investigates the relationship between heart rate variability (HRV) and the level of motion sickness (MS) induced by simulated tunnel driving. The HRV indices, normalized low frequency (NLF, 0.04-0.15 Hz), normalized high frequency (NHF, 0.15-0.4 Hz), and LF/HF ratio were correlated with the subjectively and continuously rated MS levels of 20 participants. The experimental results showed that for 13 of the subjects, the MS levels positively correlated with the NLF and the LF/HF ratio and negatively correlated with the NHF. The remaining seven subjects had negative correlations between the MS levels and the NLF and the LF/HF ratio and a positive correlation between the MS levels and the NHF. To clarify this contradiction, this study also inspected the effects of subjects' self-adjustments on the correlations between the MS levels and the HRV indices and showed that the variations in the relationship might be attributed to the subjects' self-adjustments, which they used to relieve the discomfort of MS. © 2012 Elsevier B.V.

Lin, C-T, Hsu, S-C, Lee, J-F & Yang, C-T 2013, 'Boosted Vehicle Detection Using Local and Global Features', Journal of Signal and Information Processing, vol. 04, no. 03, pp. 243-252.
View/Download from: Publisher's site
View description>>

This study presents a boosted vehicle detection system. It first hypothesizes potential locations of vehicles to reduce the computational costs by a statistic of the edge intensity and symmetry, then verifies the accuracy of the hypotheses using AdaBoost and Probabilistic Decision-Based Neural Network (PDBNN) classifiers, which exploit local and global features of vehicles, respectively. The combination of 2 classifiers can be used to learn the complementary relationship between local and global features, and it gains an extremely low false positive rate while maintaining a high detection rate. For the MIT Center for Biological & Computational Learning (CBCL) database, a 96.3% detection rate leads to a false alarm rate of approximately 0.0013%. The objective of this study is to extract the characteristic of vehicles in both local- and global-orientation, and model the implicit invariance of vehicles. This boosted approach provides a more effective solution to handle the problems encountered by conventional background-based detection systems. The experimental results of this study prove that the proposed system achieves good performance in detecting vehicles without background information. The implemented system also extract useful traffic information that can be used for further processing, such as tracking, counting, classification, and recognition.

Lin, C-T, Huang, K-C, Chuang, C-H, Ko, L-W & Jung, T-P 2013, 'Can arousing feedback rectify lapses in driving? Prediction from EEG power spectra', Journal of Neural Engineering, vol. 10, no. 5, pp. 056024-056024.
View/Download from: Publisher's site
View description>>

Objective. This study explores the neurophysiological changes, measured using an electroencephalogram (EEG), in response to an arousing warning signal delivered to drowsy drivers, and predicts the efficacy of the feedback based on changes in the EEG. Approach. Eleven healthy subjects participated in sustained-attention driving experiments. The driving task required participants to maintain their cruising position and compensate for randomly induced lane deviations using the steering wheel, while their EEG and driving performance were continuously monitored. The arousing warning signal was delivered to participants who experienced momentary behavioral lapses, failing to respond rapidly to lane-departure events (specifically the reaction time exceeded three times the alert reaction time). Main results. The results of our previous studies revealed that arousing feedback immediately reversed deteriorating driving performance, which was accompanied by concurrent EEG theta- and alpha-power suppression in the bilateral occipital areas. This study further proposes a feedback efficacy assessment system to accurately estimate the efficacy of arousing warning signals delivered to drowsy participants by monitoring the changes in their EEG power spectra immediately thereafter. The classification accuracy was up 77.8% for determining the need for triggering additional warning signals. Significance. The findings of this study, in conjunction with previous studies on EEG correlates of behavioral lapses, might lead to a practical closed-loop system to predict, monitor and rectify behavioral lapses of human operators in attention-critical settings. © 2013 IOP Publishing Ltd.

Lin, Q, Wang, R, Ye, N & Wang, Z 2013, 'Energy efficient distributed steganography for secure communication in wireless multimedia sensor networks', Journal of Electronics (China), vol. 30, no. 1, pp. 9-16.
View/Download from: Publisher's site

Lin, Q, Zhang, Y, Zhang, W & Lin, X 2013, 'Efficient general spatial skyline computation', World Wide Web, vol. 16, no. 3, pp. 247-270.
View/Download from: Publisher's site
View description>>

With the emergence of location-aware mobile device technologies, communication technologies and GPS systems, the location based queries have attracted great attentions in the database literature. In many user recommendation web services, the spatial preference query is used to suggest the objects based on their spatial proximity with the facilities. In this paper, we study the problem of general spatial skyline (GSSKY) which can provide the minimal candidate set of the optimal solutions for any monotonic distance based spatial preference query. Efficient progressive algorithm called P-GSSKY is proposed to significantly reduce the number of non-promising objects in the computation. Moreover, we also propose spatial join based algorithm, called J-GSSKY, which can compute GSSKY efficiently in terms of I/O cost. The paper conducts a comprehensive performance study of the proposed techniques based on both real and synthetic data. © 2012 Springer Science+Business Media, LLC.

Lin, X & Zhang, YX 2013, 'Bond–slip behaviour of FRP-reinforced concrete beams', Construction and Building Materials, vol. 44, pp. 110-117.
View/Download from: Publisher's site

Lin, X & Zhang, YX 2013, 'Nonlinear finite element analyses of steel/FRP-reinforced concrete beams in fire conditions', Composite Structures, vol. 97, pp. 277-285.
View/Download from: Publisher's site

Lin, X & Zhang, YX 2013, 'Novel Composite Beam Element with Bond-Slip for Nonlinear Finite-Element Analyses of Steel/FRP-Reinforced Concrete Beams', Journal of Structural Engineering, vol. 139, no. 12.
View/Download from: Publisher's site

Listowski, A, Ngo, HH & Guo, WS 2013, 'Establishment of an economic evaluation model for urban recycled water', RESOURCES CONSERVATION AND RECYCLING, vol. 72, pp. 67-75.
View/Download from: Publisher's site
View description>>

This study aimed at establishing an economic evaluation model to encourage continuing improvement in performance analysis and applying for any infrastructure system of urban recycled water. A thorough study towards characterization and economic performance assessment of urban water reuse scheme were carried out. An integrated evaluation technique was developed by synthesizing the quantitative and qualitative performance indicators related to the water recycled technology and urban water cycle system. Specific performance indicators and indexes were aggregated into an economic analytical modelling for effective evaluation of the water reuse scheme and technology using uniform economic performance standards. Detailed economic analyses were successfully applied to enable determination of economic lifetime of the technology and the whole water reuse scheme. This research confirmed that productivity, efficiency and reliability measurements and factors could be successfully deployed for determining the scheme performance during various life cycle stages (e.g. design development, operational and functional verification, or comparison with other reuse projects). The economic assessment model was applied to improve uniformity of analytical process and performance measure. This article demonstrates benefits associated with the application of a standardized methodology for performing economic assessment and by maintaining strong correlation between multi-parameter approach and adopted performance criteria in terms of productivity, efficiency and reliability. However, to ensure effectiveness of this assessment, the process would require systematic and perpetual inventory of the scheme performance data, consideration of variable factors such as capital and recurrent costs.

Liu, B, Ray, A & Thomas, PS 2013, 'Investigation of autoclaved cement systems with reactive MgO and Al₂O₃-SiO₂ rich fired clay brick', Advances in Cement Research, vol. 25, no. 5, pp. 281-287.
View/Download from: Publisher's site
View description>>

Portland cement (PC) is one of the world's most important building materials, as it is a fundamental component of concrete. However, the manufacture of PC is highly energy intensive and leads to the emission of carbon dioxide (CO2). One promising control measure is the use of industrial wastes and by-products as supplementary cementing materials (SCMs) in order to minimise PC consumption, thereby producing greener cement-based products. This study investigates mechanical properties and phase development of hydrothermally treated cement–ground quartz sand blends with the incorporation of fired clay-brick (CB) waste and reactive magnesia (MgO). The addition of CB waste in autoclaved PC–quartz mortar mixes showed that the alumina–silica rich CB waste was pozzolanic when the Al2O3 accelerated formation and increased crystallinity of Al substituted 1·1 nm tobermorite, resulting in the observed strength gain. Autoclaved mortar specimens incorporating reactive MgO showed a reduction in strength with increasing MgO addition. This was a result of dilution when the relative proportion of PC available for the formation of the strength contributing hydration products including tobermorite is decreased.

Liu, B, Rong, B, Hu, R & Qian, Y 2013, 'Neighbor discovery algorithms in directional antenna based synchronous and asynchronous wireless ad hoc networks', IEEE Wireless Communications, vol. 20, no. 6, pp. 106-112.
View/Download from: Publisher's site

Liu, B, Xiao, Y, Cao, L, Hao, Z & Deng, F 2013, 'SVDD-based outlier detection on uncertain data', Knowledge and Information Systems, vol. 34, no. 3, pp. 597-618.
View/Download from: Publisher's site
View description>>

Outlier detection is an important problem that has been studied within diverse research areas and application domains. Most existing methods are based on the assumption that an example can be exactly categorized as either a normal class or an outlier. However, in many real-life applications, data are uncertain in nature due to various errors or partial completeness. These data uncertainty make the detection of outliers far more difficult than it is from clearly separable data. The key challenge of handling uncertain data in outlier detection is how to reduce the impact of uncertain data on the learned distinctive classifier. This paper proposes a new SVDD-based approach to detect outliers on uncertain data. The proposed approach operates in two steps. In the first step, a pseudo-training set is generated by assigning a confidence score to each input example, which indicates the likelihood of an example tending normal class. In the second step, the generated confidence score is incorporated into the support vector data description training phase to construct a global distinctive classifier for outlier detection. In this phase, the contribution of the examples with the least confidence score on the construction of the decision boundary has been reduced. The experiments show that the proposed approach outperforms state-of-art outlier detection techniques.

Liu, H, Derawi, D, Kim, J & Zhong, Y 2013, 'Robust optimal attitude control of hexarotor robotic vehicles', Nonlinear Dynamics, vol. 74, no. 4, pp. 1155-1168.
View/Download from: Publisher's site

Liu, J, Ding, GKC & Samali, B 2013, 'Building Sustainable Score (BSS)—A Hybrid Process Approach for Sustainable Building Assessment in China', Journal of Power and Energy Engineering, vol. 01, no. 05, pp. 58-62.
View/Download from: Publisher's site
View description>>

Sustainable building in China has gained attention both domestically and abroad. Despite the fast increase in sustainable assessment tools developed locally or adopted from overseas, there are still criticisms about the current situation of weak implementation and lack of comprehensive consideration. The lack of consideration of economic and social as-pects or building performance on whole building life cycle all lead to departure from the true meaning of sustainable development. And lack of participation on the part of stakeholders makes it too theoretical to be carried out. This re-search aims to develop a model to address this problem. This research started with review of current sustainable as-sessment tools applied in China. As the assessment indicators have clear regional disparities, and almost no current tool considers all three pillars of environmental, economic and social in building life cycle. An industry survey was therefore designed for generation of indicators at different building stages, and personal interviews relevant to different occupa-tion in building industry were conducted to complement the questionnaire survey. After that, the model Building Sus-tainable Score (BSS) was developed based on the stakeholders participation. Finally, the model is verified by a case study.

Liu, J, Esselle, KP, Hay, SG & Zhong, SS 2013, 'Compact super‐wideband asymmetric monopole antenna with dual‐branch feed for bandwidth enhancement', Electronics Letters, vol. 49, no. 8, pp. 515-516.
View/Download from: Publisher's site
View description>>

A novel compact super‐wideband (SWB) antenna with an optimised feed is presented. The antenna is composed of an asymmetric trapezoid ground plane and a modified rectangular monopole patch. It is demonstrated that the bandwidth of the antenna is significantly enhanced by introducing an asymmetric dual‐branch feed with an L‐shaped feed branch. The measurements indicate that the 2:1 VSWR bandwidth is from 1.05 to 32.7 GHz with a ratio bandwidth of 31:1. Since the antenna features an extremely wide bandwidth and the entire size is only 74 × 80 mm, it is useful for modern wireless communication applications.

Liu, J, Esselle, KP, Hay, SG, Sun, Z & Zhong, S 2013, 'A Compact Super-Wideband Antenna Pair With Polarization Diversity', IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 1472-1475.
View/Download from: Publisher's site

Liu, JJ, Esselle, KP, Hay, SG & Zhong, SS 2013, 'Planar ultra‐wideband antenna with five notched stop bands', Electronics Letters, vol. 49, no. 9, pp. 579-580.
View/Download from: Publisher's site
View description>>

A printed ultra‐wideband (UWB) antenna with five notched stop bands is presented. By introducing a pair of arc‐shaped slots, two defected ground structures and an open‐loop resonator, five sharp notches are achieved at frequencies of 2.4, 3.2, 5.2, 5.8 and 7.5 GHz. The proposed antenna has been fabricated and tested. The measured results indicate that the proposed design not only supports UWB bandwidth requirements but rejects five narrow bands to avoid possible interference with existing communication systems. In addition, the proposed antenna has relatively omnidirectional radiation patterns in passbands.

Liu, L, Chen, X, Luo, D, Lu, Y, Xu, G & Liu, M 2013, 'HSC: A SPECTRAL CLUSTERING ALGORITHM COMBINED WITH HIERARCHICAL METHOD', Neural Network World, vol. 23, no. 6, pp. 499-521.
View/Download from: Publisher's site
View description>>

Most of the traditional clustering algorithms are poor for clustering more complex structures other than the convex spherical sample space. In the past few years, several spectral clustering algorithms were proposed to cluster arbitrarily shaped data in various real applications. However, spectral clustering relies on the dataset where each cluster is approximately well separated to a certain extent. In the case that the cluster has an obvious inflection point within a non-convex space, the spectral clustering algorithm would mistakenly recognize one cluster to be different clusters. In this paper, we propose a novel spectral clustering algorithm called HSC combined with hierarchical method, which obviates the disadvantage of the spectral clustering by not using the misleading information of the noisy neighboring data points. The simple clustering procedure is applied to eliminate the misleading information, and thus the HSC algorithm could cluster both convex shaped data and arbitrarily shaped data more efficiently and accurately. The experiments on both synthetic data sets and real data sets show that HSC outperforms other popular clustering algorithms. Furthermore, we observed that HSC can also be used for the estimation of the number of clusters

Liu, Q, Kwoh, CK & Li, J 2013, 'Binding Affinity Prediction for Protein–Ligand Complexes Based onβContacts and B Factor', Journal of Chemical Information and Modeling, vol. 53, no. 11, pp. 3076-3085.
View/Download from: Publisher's site
View description>>

Accurate determination of proteinligand binding affinity is a fundamental problem in biochemistry useful for many applications including drug design and proteinligand docking. A number of scoring functions have been proposed for the prediction of proteinligand binding affinity. However, accurate prediction is still a challenging problem because poor performance is often seen in the evaluation under the leave-one-cluster-out cross-validation (LCOCV). We introduce a new scoring function named B2BScore to improve the prediction performance. B2BScore integrates two physicochemical properties for proteinligand binding affinity prediction. One is the property of ß contacts. A ß contact between two atoms requires no other atoms to interrupt the atomic contact and assumes that the two atoms should have enough direct contact area. The other is the property of B factor to capture the atomic mobility in the dynamic proteinligand binding process.

Liu, RP, Hedley, M & Yang, X 2013, 'WLAN Location Service with TXOP', IEEE Transactions on Computers, vol. 62, no. 3, pp. 589-598.
View/Download from: Publisher's site
View description>>

The provision of location-based services with high positional accuracy requires the use of Time of Arrival (TOA)-based techniques. However, existing TOA-based WLAN location service schemes are inefficient due to the individual query and response ranging method employed. We present a highly efficient WLAN location service architecture which includes a modification to the Transmit Opportunity (TXOP) technique in the IEEE 802.11e standard. Our Location Service with TXOP (LSOP) scheme achieves high efficiency by minimizing the number of TOA transmissions and eliminating the contention overhead for TOA messages. The adaptation of TXOP technique also improves location accuracy by protecting TOA messages from collision and by grouping the TOA messages into one compact burst. Our analysis shows that the LSOP scheme achieves the highest location update rate compared to previous schemes. Our simulation results show that the LSOP scheme has minimum impact on data traffic and achieves higher accuracy than the previous schemes. Experimental results demonstrate the degradation in localization performance caused by packet collisions. These results validate that our LSOP scheme, which implements contention-free broadcast of TOA messages with a modified TXOP, provides the best combination of high location update rate, low network load, and high location accuracy compared to other schemes. © 1968-2012 IEEE.

Liu, X & Wang, J 2013, 'Bogdanov-Takens and Triple Zero Bifurcations of a Delayed Modified Leslie-Gower Predator Prey System', Abstract and Applied Analysis, vol. 2013, pp. 1-8.
View/Download from: Publisher's site
View description>>

A delayed modified Leslie-Gower predator prey system with nonlinear harvesting is considered. The existence conditions that an equilibrium is Bogdanov-Takens (BT) or triple zero singularity of the system are given. By using the center manifold reduction, the normal form theory, and the formulae developed by Xu and Huang, 2008 and Qiao et al., 2010, the normal forms and the versal unfoldings for this singularity are presented. The Hopf bifurcation of the system at another interior equilibrium is analyzed by taking delay (small or large) as bifurcation parameter.

Liu, Z, Yang, L, Dai, N, Chu, Y, Chen, Q & Li, J 2013, 'Intense ultra-broadband down-conversion in co-doped oxide glass by multipolar interaction process', Optics Express, vol. 21, no. 10, pp. 12635-12635.
View/Download from: Publisher's site

Loganathan, P, Vigneswaran, S & Kandasamy, J 2013, 'Enhanced removal of nitrate from water using surface modification of adsorbents - A review', JOURNAL OF ENVIRONMENTAL MANAGEMENT, vol. 131, no. 1, pp. 363-374.
View/Download from: Publisher's site
View description>>

Elevated concentration of nitrate results in eutrophication of natural water bodies affecting the aquatic environment and reduces the quality of drinking water. This in turn causes harm to people's health, especially that of infants and livestock. Adsorbents with the high capacity to selectively adsorb nitrate are required to effectively remove nitrate from water. Surface modifications of adsorbents have been reported to enhance their adsorption of nitrate. The major techniques of surface modification are: protonation, impregnation of metals and metal oxides, grafting of amine groups, organic compounds including surfactant coating of aluminosilicate minerals, and heat treatment. This paper reviews current information on these techniques, compares the enhanced nitrate adsorption capacities achieved by the modifications, and the mechanisms of adsorption, and presents advantages and drawbacks of the techniques. Most studies on this subject have been conducted in batch experiments. These studies need to include continuous mode column trials which have more relevance to real operating systems and pilot-plant trials. Reusability of adsorbents is important for economic reasons and practical treatment applications. However, only limited information is available on the regeneration of surface modified adsorbents, © 2013 Elsevier Ltd.

Loganathan, P, Vigneswaran, S & Kandasamy, J 2013, 'Road-Deposited Sediment Pollutants: A Critical Review of their Characteristics, Source Apportionment, and Management', CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 43, no. 13, pp. 1315-1348.
View/Download from: Publisher's site
View description>>

Road-deposited sediments (RDS) often contain elevated concentrations of inorganic and organic pollutants such as heavy metals, metalloids, and polycyclic aromatic hydrocarbons. The authors trace new developments and trends on RDS pollutant characteristics with respect to their distribution in time and space, total and labile fractions in the different particle size and density fractions, source apportionment, and chemical speciation, as well as on the management of the pollutants. Recent research provides more reliable information to understand pollutants origin, bioavailability, transport pathways, and methods to minimize their risks. Use of special chemical, physical, mineralogical, and statistical methods has contributed to a better understanding of source apportionment of many of the pollutants but more research is needed on others. The degree of accumulation of pollutants in RDS that are derived from roads and vehicles has been quantified by using enrichment factors. Many of the studies on RDS pollutant management dealt with reducing pollutants by road sweeping and water flushing but these have not been found to be very effective. Pollutants that enter the water bodies through stormwater runoff need to be removed to protect the aquatic environment in the receiving water. The current knowledge on stormwater treatment methods to remove pollutants is also presented. © 2013 Copyright Taylor and Francis Group, LLC.

Loganathan, P, Vigneswaran, S, Kandasamy, J & Naidu, R 2013, 'Defluoridation of drinking water using adsorption processes', JOURNAL OF HAZARDOUS MATERIALS, vol. 248, no. 1, pp. 1-19.
View/Download from: Publisher's site
View description>>

Excessive intake of fluoride (F), mainly through drinking water, is a serious health hazard affecting humans worldwide. There are several methods used for the defluoridation of drinking water, of which adsorption processes are generally considered attractive because of their effectiveness, convenience, ease of operation, simplicity of design, and for economic and environmental reasons. In this paper, we present a comprehensive and a critical literature review on various adsorbents used for defluoridation, their relative effectiveness, mechanisms and thermodynamics of adsorption, and suggestions are made on choice of adsorbents for various circumstances. Effects of pH, temperature, kinetics and co-existing anions on F adsorption are also reviewed. Because the adsorption is very weak in extremely low or high pHs, depending on the adsorbent, acids or alkalis are used to desorb F and regenerate the adsorbents. However, adsorption capacity generally decreases with repeated use of the regenerated adsorbent. Future research needs to explore highly efficient, low cost adsorbents that can be easily regenerated for reuse over several cycles of operations without significant loss of adsorptive capacity and which have good hydraulic conductivity to prevent filter clogging during the fixed-bed treatment process. © 2013 Elsevier B.V.

Long, Z & Li, S 2013, 'A complete classification of spatial relations using the Voronoi-based nine-intersection model', International Journal of Geographical Information Science, vol. 27, no. 10, pp. 2006-2025.
View/Download from: Publisher's site
View description>>

In this article we show that the Voronoi-based nine-intersection (V9I) model proposed by Chen et al. (2001, A Voronoi-based 9-intersection model for spatial relations. International Journal of Geographical Information Science, 15 (3), 201-220) is more expressive than what has been believed before. Given any two spatial entities A and B, the V9I relation between A and B is represented as a 3 × 3 Boolean matrix. For each pair of types of spatial entities that is, points, lines, and regions, we first show that most Boolean matrices do not represent a V9I relation by using topological constraints and the definition of Voronoi regions. Then, we provide illustrations for all the remaining matrices. This guarantees that our method is sound and complete. In particular, we show that there are 18 V9I relations between two areas with connected interior, while there are only nine four-intersection relations. Our investigations also show that, unlike many other spatial relation models, V9I relations are context or shape sensitive. That is, the existence of other entities or the shape of the entities may affect the validity of certain relations. © 2013 Taylor & Francis.

López-Mariscal, C & McGloin, D 2013, 'Introduction: Optical trapping and applications feature issue', Biomedical Optics Express, vol. 4, no. 11, pp. 2710-2710.
View/Download from: Publisher's site

Lu, DD-C & Ki, S-K 2013, 'Light-Load Efficiency Improvement in Buck-Derived Single-Stage Single-Switch PFC Converters', IEEE Transactions on Power Electronics, vol. 28, no. 5, pp. 2105-2110.
View/Download from: Publisher's site

Lu, HN, Wei, DB, Jiang, ZY, Liu, XH & Manabe, K 2013, 'Modelling of size effects in microforming process with consideration of grained heterogeneity', Computational Materials Science, vol. 77, no. 1, pp. 44-52.
View/Download from: Publisher's site
View description>>

Size effect is a special phenomenon in metal micro-forming process. As the deformation process is scale down to micro/mesoscale, the characteristics of single grain involved in the deformed region play a significant role on the material mechanical behaviours resulting in the invalidation of classical theories in microforming. This paper presents a newly developed material model in microscale on the basis of the grained heterogeneity (e.g. grain size, shape and deformability) and specimen dimension. Voronoi tessellation has been employed to describe the polycrystalline aggregate. The grain shape is controlled by the centroidal-voronoi algorithm to drive grains into steady state. Hardness of the grains obtained from Nano-indentation is used to identify the scatter of the grained deformability. Applying the new material model, the micro-compression test of pure copper is numerically simulated by finite element method (FEM). The influences of grain size and feature size on the deformation behaviours are discussed. The numerical simulation results are in good agreement with the experimental results in terms of the flow stress curves and profile of deformed parts. Based on the novel material model, a FE model of microcross wedge rolling is established and the obtained results show the strain of specimen core region increases with the magnification of grain size.

Lu, J, Niu, L & Zhang, G 2013, 'A Situation Retrieval Model for Cognitive Decision Support in Digital Business Ecosystems', IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 60, no. 3, pp. 1059-1069.
View/Download from: Publisher's site
View description>>

This paper presents a novel situation retrieval (SR) model for supporting cognition-driven decision processes in digital business ecosystems. Cognitive decision support in digital ecosystems is concerned with decision makers' cognitive processes. This study aims to facilitate cognitive decision support to decision makers on the basis of current business intelligence (BI) platform. Underlying foundations of the SR model are two types of mental constructs: situation awareness (SA) and mental models of decision makers and the model of naturalistic decision making (NDM). These mental constructs and NDM are integrated into the BI application framework. Our experiments showed that the SR model was playing a nontrivial role to help decision makers develop enhanced SA and reuse their past experience to make better decisions. © 2012 IEEE.

Lu, J, Shambour, Q, Xu, Y, Lin, Q & Zhang, G 2013, 'A WEB-BASED PERSONALIZED BUSINESS PARTNER RECOMMENDATION SYSTEM USING FUZZY SEMANTIC TECHNIQUES', COMPUTATIONAL INTELLIGENCE, vol. 29, no. 1, pp. 37-69.
View/Download from: Publisher's site
View description>>

The web provides excellent opportunities to businesses in various aspects of development such as finding a business partner online. However, with the rapid growth of web information, business users struggle with information overload and increasingly find it difficult to locate the right information at the right time. Meanwhile, small and medium businesses (SMBs), in particular, are seeking 'one-to-one' e-services from government in current highly competitive markets. How can business users be provided with information and services specific to their needs, rather than an undifferentiated mass of information? An effective solution proposed in this study is the development of personalized e-services. Recommender systems is an effective approach for the implementation of Personalized E-Service which has gained wide exposure in e-commerce in recent years. Accordingly, this paper first presents a hybrid fuzzy semantic recommendation (HFSR) approach which combines item-based fuzzy semantic similarity and item-based fuzzy collaborative filtering (CF) similarity techniques. This paper then presents the implementation of the proposed approach into an intelligent recommendation system prototype called Smart BizSeeker, which can recommend relevant business partners to individual business users, particularly for SMBs. Experimental results show that the HFSR approach can help overcome the semantic limitations of classical CF-based recommendation approaches, namely sparsity and new 'cold start' item problems. © 2012 Wiley Periodicals, Inc.

Lu, S, Zhang, J, Wang, Z & Feng, DD 2013, 'Fast human action classification and VOI localization with enhanced sparse coding', Journal of Visual Communication and Image Representation, vol. 24, no. 2, pp. 127-136.
View/Download from: Publisher's site
View description>>

Sparse coding which encodes the natural visual signal into a sparse space for visual codebook generation and feature quantization, has been successfully utilized for many image classification applications. However, it has been seldom explored for many video analysis tasks. In particular, the increased complexity in characterizing the visual patterns of diverse human actions with both the spatial and temporal variations imposes more challenges to the conventional sparse coding scheme. In this paper, we propose an enhanced sparse coding scheme through learning discriminative dictionary and optimizing the local pooling strategy. Localizing when and where a specific action happens in realistic videos is another challenging task. By utilizing the sparse coding based representations of human actions, this paper further presents a novel coarse-to-fine framework to localize the Volumes of Interest (VOIs) for the actions. Firstly, local visual features are transformed into the sparse signal domain through our enhanced sparse coding scheme. Secondly, in order to avoid exhaustive scan of entire videos for the VOI localization, we extend the Spatial Pyramid Matching into temporal domain, namely Spatial Temporal Pyramid Matching, to obtain the VOI candidates. Finally, a multi-level branch-and-bound approach is developed to refine the VOI candidates. The proposed framework is also able to avoid prohibitive computations in local similarity matching (e.g., nearest neighbors voting). Experimental results on both two popular benchmark datasets (KTH and YouTube UCF) and the widely used localization dataset (MSR) demonstrate that our approach reduces computational cost significantly while maintaining comparable classification accuracy to that of the state-of-the-art methods. © 2012 Elsevier Inc. All rights reserved.

Lunghi, T, Kaniewski, J, Bussieres, F, Houlmann, R, Tomamichel, M, Kent, A, Gisin, N, Wehner, S & Zbinden, H 2013, 'Experimental bit commitment based on quantum communication and special relativity', Phys. Rev. Lett., vol. 111, no. 18, p. 180504.
View/Download from: Publisher's site
View description>>

Bit commitment is a fundamental cryptographic primitive in which Bob wishesto commit a secret bit to Alice. Perfectly secure bit commitment has beenproven impossible through asynchronous exchange of classical and quantuminformation. Perfect security is however possible by restraining the exchangeof classical and quantum information to suitably chosen relativisticconstraints. This requires Alice (and Bob) to split into two remote agentsperforming space-like separated classical communication, and in one agentexchanging quantum bits with the other party. The duration of the commitment isgiven by the distance between the two remote agents. The original protocolrequires the quantum communication to happen at a precise location and timewith respect to the classical communication. We show how the protocol can bemodified to relax this constraint such that the quantum part of the protocolcan be performed at any time before the actual commitment, making it much morepractical. Finally, we present an experimental demonstration of this protocolrealized with a commercial quantum key distribution system and withsynchronized classical agents located in Geneva and Singapore, yielding acommitment time of 15 ms. Our work includes a complete security analysis,accounting for experimental imperfections (multi-photon emission, transmissionloss, detector inefficiency and dark counts) and finite statistics.

Luo, Q & Tong, L 2013, 'Adaptive pressure-controlled cellular structures for shape morphing I: design and analysis', Smart Materials and Structures, vol. 22, no. 5, pp. 055014-055014.
View/Download from: Publisher's site

Luo, Q & Tong, L 2013, 'Adaptive pressure-controlled cellular structures for shape morphing: II. Numerical and experimental validation', Smart Materials and Structures, vol. 22, no. 5, pp. 055015-055015.
View/Download from: Publisher's site

Luo, T, Qin, Z, Feng, X, Xia, F, Yao, Y & Sheng, D 2013, 'A symmetrisation method for non-associated unified hardening model', Computers and Geotechnics, vol. 52, pp. 38-45.
View/Download from: Publisher's site

Luo, Z, Hu, Z, Song, Y, Xu, Z & Lu, H 2013, 'Optimal Coordination of Plug-In Electric Vehicles in Power Grids With Cost-Benefit Analysis—Part I: Enabling Techniques', IEEE Transactions on Power Systems, vol. 28, no. 4, pp. 3546-3555.
View/Download from: Publisher's site
View description>>

Plug-in electric vehicles (PEVs) appear to offer a promising option for mitigating greenhouse emission. However, uncoordinated PEV charging can weaken the reliability of power systems. The proper accommodation of PEVs in a power grid imposes many challenges on system planning and operations. This work aims to investigate optimal PEV coordination strategies with cost-benefit analysis. In Part I, we first present a new method to calculate the charging load of PEVs with a modified Latin hypercube sampling (LHS) method for handling the stochastic property of PEVs. We then propose a new two-stage optimization model to discover the optimal charging states of PEVs in a given day. Using this model, the peak load with charging load of PEVs is minimized in the first stage and the load fluctuation is minimized in the second-stage with peak load being fixed as the value obtained in the first stage. An algorithm based on linear mixed-integer programming is provided as a suitable solution method with fast computation. Finally, we present a new method to calculate the benefit and cost for a PEV charging and discharging coordination strategy from a social welfare approach. These methods are useful for developing PEV coordination strategies in power system planning and supporting PEV-related policy making.

Luo, Z, Hu, Z, Song, Y, Xu, Z & Lu, H 2013, 'Optimal Coordination of Plug-in Electric Vehicles in Power Grids With Cost-Benefit Analysis—Part II: A Case Study in China', IEEE Transactions on Power Systems, vol. 28, no. 4, pp. 3556-3565.
View/Download from: Publisher's site
View description>>

Continuing with a set of enabling techniques for the optimal coordination of plug-in electric vehicles (PEVs) in Part I, we present a case study in this paper using techniques based on the data collected in the BeijingTianjinTangshan Region (BTTR) China to discover optimal PEV coordination strategies and assess the attractiveness of these strategies. In Part II, we first present the charging characteristics for different categories of PEVs in BTTR and predict the optimal seasonal daily loads with PEVs under different PEV penetration levels using a two-stage optimization model in both 2020 and 2030. The simulation results indicate that optimal PEV coordination effectively reduces the peak load and smooths the load curve. Finally, we present a cost-benefit analysis of optimal coordination strategies by taking a social welfare approach. The analysis shows that the optimal coordination strategies are beneficial in terms of the reduction in capital investment in power grid expansion and that the attractiveness of a coordination strategy is related to the coordination level. The results also show that the fully coordinated charging and vehicle to grid are not the most attractive strategies. This case study is useful for better understanding the costs and benefits of PEV coordination strategies and for supporting PEV-related decision and policy making from a power system planning perspective.

Luo, Z, Zhang, N, Wang, Y & Gao, W 2013, 'Topology optimization of structures using meshless density variable approximants', International Journal for Numerical Methods in Engineering, vol. 93, no. 4, pp. 443-464.
View/Download from: Publisher's site
View description>>

SUMMARYThis paper proposes a new structural topology optimization method using a dual‐level point‐wise density approximant and the meshless Galerkin weak‐forms, totally based on a set of arbitrarily scattered field nodes to discretize the design domain. The moving least squares (MLS) method is used to construct shape functions with compactly supported weight functions, to achieve meshless approximations of system state equations. The MLS shape function with the zero‐order consistency will degenerate to the well‐known ‘Shepard function’, while the MLS shape function with the first‐order consistency refers to the widely studied ‘MLS shape function’. The Shepard function is then applied to construct a physically meaningful dual‐level density approximant, because of its non‐negative and range‐restricted properties. First, in terms of the original set of nodal density variables, this study develops a nonlocal nodal density approximant with enhanced smoothness by incorporating the Shepard function into the problem formulation. The density at any node can be evaluated according to the density variables located inside the influence domain of the current node. Second, in the numerical implementation, we present a point‐wise density interpolant via the Shepard function method. The density of any computational point is determined by the surrounding nodal densities within the influence domain of the concerned point. According to a set of generic design variables scattered at field nodes, an alternative solid isotropic material with penalization model is thus established through the proposed dual‐level density approximant. The Lagrangian multiplier method is included to enforce the essential boundary conditions because of the lack of the Kronecker delta function property of MLS meshless shape functions. Two benchmark numerical examples are employed to demonstrate the effectiveness of the proposed method, in particular its applicabili...

Ma, S, Wang, S, Iacopi, F & Huang, H 2013, 'A resonant method for determining the residual stress and elastic modulus of a thin film', Applied Physics Letters, vol. 103, no. 3, pp. 031603-031603.
View/Download from: Publisher's site
View description>>

By measuring the resonant frequencies of the first two symmetric vibration modes of a circular thin-film diaphragm and solving the Rayleigh-Ritz equation analytically, the residual stress and elastic modulus of the film were determined simultaneously. The results obtained employing this method are in excellent agreement with those obtained numerically in finite element modelling when tested using freestanding circular SiC diaphragms with residual tensile stress. The stress and modulus values are also in reasonably good agreement with those obtained from nanoindentation and wafer curvature measurements, respectively.

Ma, XY, Wang, XC, Ngo, HH, Guo, W, Wu, MN & Wang, N 2013, 'Reverse osmosis pretreatment method for toxicity assessment of domestic wastewater using Vibrio qinghaiensis sp.-Q67', ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, vol. 97, no. 1, pp. 248-254.
View/Download from: Publisher's site
View description>>

Luminescent bacterial test is a fast and sensitive method for acute toxicity assessment of water and wastewater. In this study, an improved toxicity testing method was developed using the freshwater luminescent bacteria Vibrio qinghaiensis sp.-Q67 that involved pretreatment of water samples with reverse osmosis (RO) to eliminate the interferences caused by nutrients in concentrated samples and to improve the reliability and sensitivity of the analysis. Because water samples contain low concentrations of several target toxic substances, rapid acute toxicity testing method that is commonly employed does not achieve enough sensitivity. The proposed RO pretreatment could effectively enrich organic and inorganic substances in water samples to enable a more effective and sensitive toxicity evaluation. The kinetic characteristics of toxicity of raw sewage and secondary effluent were evaluated based on the relative luminescence unit (RLU) curves and timeconcentration-effect surfaces. It was observed that when the exposure time was prolonged to 8-h or longer, the bacteria reached the logarithmic growth stage. Hence, the stimulating effects of the coexisting ions (such as Na+, K+, NO3-) in the concentrated samples could be well eliminated. A 10-h exposure time in proposed Q67 test was found to quantitatively evaluate the toxicity of the organic and inorganic pollutants in the RO-concentrated samples.

Mahler, DH, Rozema, LA, Darabi, A, Ferrie, C, Blume-Kohout, R & Steinberg, AM 2013, 'Adaptive Quantum State Tomography Improves Accuracy Quadratically', Physical Review Letters, vol. 111, no. 18.
View/Download from: Publisher's site

Mahlia, TMI, Tohno, S & Tezuka, T 2013, 'International experience on incentive program in support of fuel economy standards and labelling for motor vehicle: A comprehensive review', Renewable and Sustainable Energy Reviews, vol. 25, pp. 18-33.
View/Download from: Publisher's site

Mahmud, MA, Hossain, MJ & Pota, HR 2013, 'Effects of large dynamic loads on power system stability', International Journal of Electrical Power & Energy Systems, vol. 44, no. 1, pp. 357-363.
View/Download from: Publisher's site

Mahmud, MA, Pota, HR & Hossain, MJ 2013, 'Nonlinear DSTATCOM controller design for distribution network with distributed generation to enhance voltage stability', International Journal of Electrical Power & Energy Systems, vol. 53, pp. 974-979.
View/Download from: Publisher's site

Mainali, B, Pham, TTN, Ngo, HH & Guo, W 2013, 'Maximum allowable values of the heavy metals in recycled water for household laundry', SCIENCE OF THE TOTAL ENVIRONMENT, vol. 452, no. 1, pp. 427-432.
View/Download from: Publisher's site
View description>>

Household laundry as a new end use of recycled water in dual reticulation systems has a great potential as the significant amount of potable water from urban households can be saved. However, there is still no sufficient evidence and supporting recycled water quality guidelines for this particular use. A key gap in knowledge is the impact of heavy metals in recycled water on clothes and washing machines. Thus, this study aims to determine the maximum allowable values (MAVs) of the heavy metals iron (Fe), lead (Pb), zinc (Zn), copper (Cu), and manganese (Mn) in recycled water for washing clothes in washing machines. Six different concentrations of each targeted metals were prepared in tap water for the washing machine experiments. The tearing/tensile strength tests were used for the assessment of cloth durability. MINITAB 16 as a statistical tool was used and ANOVA one way test was applied for the significance analysis (Turkey's test p. <. 0.05). The results show that the MAVs of the heavy metals Fe, Pb, Zn, Cu and Mn were found to be 1. mg/l, 1. mg/l, 10. mg/l, 5. mg/l and 1. mg/l respectively in terms of cloth durability. © 2013 Elsevier B.V.

Mainali, B, Pham, TTN, Ngo, HH, Guo, W, Miechel, C, O'Halloran, K, Muthukaruppan, M & Listowski, A 2013, 'Vision and perception of community on the use of recycled water for household laundry: A case study in Australia', SCIENCE OF THE TOTAL ENVIRONMENT, vol. 463, no. 1, pp. 657-666.
View/Download from: Publisher's site
View description>>

This study investigates the community perception of household laundry as a new end use of recycled water in three different locations of Australia through a face to face questionnaire survey (n=478). The study areas were selected based on three categories of (1) non-user, (2) perspective user and (3) current user of recycled water. The survey results indicate that significantly higher number (70%) of the respondents supported the use of recycled water for washing machines (χ2=527.40, df=3; p=0.000). Significant positive correlation between the overall support for the new end use and the willingness of the respondents to use recycled water for washing machine was observed among all users groups (r=0.43, p=0.000). However, they had major concerns regarding the effects of recycled water on the aesthetic appearance of cloth, cloth durability, machine durability, odour of the recycled water and cost along with the health issues. The perspective user group had comparatively more reservations and concerns about the effects of recycled water on washing machines than the non-users and the current users (χ2=52.73, df=6; p=0.000). Overall, community from all three study areas are willing to welcome this new end use as long as all their major concerns are addressed and safety is assured. © 2013 Elsevier B.V.

Manap, MA, Sulaiman, WNA, Ramli, MF, Pradhan, B & Surip, N 2013, 'A knowledge-driven GIS modeling technique for groundwater potential mapping at the Upper Langat Basin, Malaysia', Arabian Journal of Geosciences, vol. 6, no. 5, pp. 1621-1637.
View/Download from: Publisher's site

Mao, L, Mo, D, Guo, Y, Fu, Q, Yang, J & Jia, Y 2013, 'Multivariate analysis of heavy metals in surface sediments from lower reaches of the Xiangjiang River, southern China', Environmental Earth Sciences, vol. 69, no. 3, pp. 765-771.
View/Download from: Publisher's site

Mao, Q & Tsang, IW-H 2013, 'A Feature Selection Method for Multivariate Performance Measures', IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 35, no. 9, pp. 2051-2063.
View/Download from: Publisher's site
View description>>

Feature selection with specific multivariate performance measures is the key to the success of many applications such as image retrieval and text classification. The existing feature selection methods are usually designed for classification error. In this paper, we propose a generalized sparse regularizer. Based on the proposed regularizer, we present a unified feature selection framework for general loss functions. In particular, we study the novel feature selection paradigm by optimizing multivariate performance measures. The resultant formulation is a challenging problem for high-dimensional data. Hence, a two-layer cutting plane algorithm is proposed to solve this problem, and the convergence is presented. In addition, we adapt the proposed method to optimize multivariate measures for multiple-instance learning problems. The analyses by comparing with the state-of-the-art feature selection methods show that the proposed method is superior to others. Extensive experiments on large-scale and high-dimensional real-world datasets show that the proposed method outperforms ( -1)-SVM and SVM-RFE when choosing a small subset of features, and achieves significantly improved performances over ({\rm SVM}^{perf}) in terms of (F-1)-score. © 1979-2012 IEEE.

Marcias, G, Pietroni, N, Panozzo, D, Puppo, E & Sorkine-Hornung, O 2013, 'Animation-Aware Quadrangulation.', Comput. Graph. Forum, vol. 32, no. 5, pp. 167-175.
View/Download from: Publisher's site
View description>>

Geometric meshes that model animated characters must be designed while taking into account the deformations that the shape will undergo during animation. We analyze an input sequence of meshes with point-to-point correspondence, and we automatically produce a quadrangular mesh that fits well the input animation. We first analyze the local deformation that the surface undergoes at each point, and we initialize a cross field that remains as aligned as possible to the principal directions of deformation throughout the sequence. We then smooth this cross field based on an energy that uses a weighted combination of the initial field and the local amount of stretch. Finally, we compute a field-aligned quadrangulation with an off-the-shelf method. Our technique is fast and very simple to implement, and it significantly improves the quality of the output quad mesh and its suitability for character animation, compared to creating the quad mesh based on a single pose. We present experimental results and comparisons with a state-of-the-art quadrangulation method, on both sequences from 3D scanning and synthetic sequences obtained by a rough animation of a triangulated model. © 2013 The Author(s) Computer Graphics Forum © 2013 The Eurographics Association and John Wiley & Sons Ltd.

Marshall, P, Antle, A, Van Den Hoven, E & Rogers, Y 2013, 'Introduction to the Special Issue on the Theory and Practice of Embodied Interaction in HCI and Interaction Design', ACM TRANSACTIONS ON COMPUTER-HUMAN INTERACTION, vol. 20, no. 1, pp. 1-3.
View/Download from: Publisher's site
View description>>

Theories of embodiment focus on how practical engagement and the structure of the body shape perception, experience, and cognition. They typically reject a view of human cognition as grounded in abstract information processing. The concept of embodied in

Masihpour, M, Franklin, DR & Abolhasan, M 2013, 'Multihop Relay Techniques for Communication Range Extension in Near-Field Magnetic Induction Communication Systems.', J. Networks, vol. 8, no. 5, pp. 999-1011.
View/Download from: Publisher's site
View description>>

In this paper, multihop relaying in RF-based communications and near field magnetic induction communication (NFMIC) is discussed. Three multihop relay strategies for NFMIC are proposed: Non Line of Sight Magnetic Induction Relay (NLoS-MI Relay), Non Line of Sight Master/Assistant Magnetic Induction Relay1 (NLoS-MAMI Relay1) and Non Line of Sight Master/Assistant Magnetic Induction Relay2 (NLoSMAMI Relay2). In the first approach only one node contributes to the communication, while in the other two techniques (which are based on a master-assistant strategy), two relaying nodes are employed. This paper shows that these three techniques can be used to overcome the problem of dead spots within a body area network and extend the communication range without increasing the transmission power and the antenna size or decreasing receiver sensitivity. The impact of the separation distance between the nodes on the achievable RSS and channel data rate is evaluated for the three techniques. It is demonstrated that the technique which is most effective depends on the specific network topology. Optimum selection of nodes as relay master and assistant based on the location of the nodes is discussed. The paper also studies the impact of the quality factor on achievable data rate. It is shown that to obtain the highest data rate, the optimum quality factor needs to be determined for each proposed cooperative communication method.

Masjuki, HH, Kalam, MA, Mofijur, M & Shahabuddin, M 2013, 'Biofuel: Policy, Standardization and Recommendation for Sustainable Future Energy Supply', Energy Procedia, vol. 42, pp. 577-586.
View/Download from: Publisher's site

Masum, BM, Masjuki, HH, Kalam, MA, Rizwanul Fattah, IM, Palash, SM & Abedin, MJ 2013, 'Effect of ethanol–gasoline blend on NOx emission in SI engine', Renewable and Sustainable Energy Reviews, vol. 24, pp. 209-222.
View/Download from: Publisher's site

Mat, RC, Shariff, ARM, Pradhan, B, Mahmud, AR & Rahim, MSM 2013, 'An effective visualization and comparison of online terrain draped with multi-sensor satellite images', Arabian Journal of Geosciences, vol. 6, no. 12, pp. 4881-4889.
View/Download from: Publisher's site

Mathiesen, P, Bandara, W, Marjanovic, O & Delavari, H 2013, 'A Critical Analysis of Business Process Management Education and Alignment with Industry Demand: An Australian Perspective', Communications of the Association for Information Systems, vol. 33, no. 1, pp. 463-484.
View/Download from: Publisher's site
View description>>

Business Process Management (BPM) is accepted globally as an organizational approach to enhance productivity and drive cost efficiencies. Studies confirm a shortage of BPM skilled professionals with limited opportunities to develop the required BPM expertise. This study investigates this gap starting from a critical analysis of BPM courses offered by Australian universities and training institutions. These courses were analyzed and mapped against a leading BPM capability framework to determine how well current BPM education and training offerings in Australia address the core capabilities required by BPM professionals globally. To determine the BPM skill-sets sought by industry, online recruitment advertisements were collated, analyzed, and mapped against this BPM capability framework. The outcomes provide a detailed overview on the alignment of available BPM education/training and industry demand. These insights are useful for BPM professionals and their employers to build awareness of the BPM capabilities required for a BPM mature organization. Universities and other training institutions will benefit from these results by understanding where demand is, where the gaps are, and what other BPM education providers are supplying. This structured comparison method could continue to provide a common ground for future discussion across university-industry boundaries and continuous alignment of their respective practices. © 2013 by the Association for Information Systems.

Mathiesen, P, Bandara, W, Marjanovic, O & Delavari, H 2013, 'A Critical Analysis of Business Process Management Education and Alignment with Industry Demand: An Australian Perspective.', Commun. Assoc. Inf. Syst., vol. 33, pp. 27-27.

McDonald, C, McPherson, M, McDougall, C & McGloin, D 2013, 'HoloHands: games console interface for controlling holographic optical manipulation', Journal of Optics, vol. 15, no. 3, pp. 035708-035708.
View/Download from: Publisher's site

Mcdowell, K, Lin, C-T, Oie, KS, Jung, T-P, Gordon, S, Whitaker, KW, Li, S-Y, Lu, S-W & Hairston, WD 2013, 'Real-World Neuroimaging Technologies', IEEE Access, vol. 1, pp. 131-149.
View/Download from: Publisher's site
View description>>

Decades of heavy investment in laboratory-based brain imaging and neuroscience have led to foundational insights into how humans sense, perceive, and interact with the external world. However, it is argued that fundamental differences between laboratory-based and naturalistic human behavior may exist. Thus, it remains unclear how well the current knowledge of human brain function translates into the highly dynamic real world. While some demonstrated successes in real-world neurotechnologies are observed, particularly in the area of brain-computer interaction technologies, innovations and developments to date are limited to a small science and technology community. We posit that advancements in realworld neuroimaging tools for use by a broad-based workforce will dramatically enhance neurotechnology applications that have the potential to radically alter human-system interactions across all aspects of everyday life. We discuss the efforts of a joint government-Academic-industry team to take an integrative, interdisciplinary, and multi-Aspect approach to translate current technologies into devices that are truly flueldable across a range of environments. Results from initial work, described here, show promise for dramatic advances in the flueld that will rapidly enhance our ability to assess brain activity in real-world scenarios. © 2013 IEEE.

McGregor, C 2013, 'Big Data in Neonatal Intensive Care', Computer, vol. 46, no. 6, pp. 54-59.
View/Download from: Publisher's site

McGregor, C, Catley, C, Padbury, J & James, A 2013, 'Late onset neonatal sepsis detection in newborn infants via multiple physiological streams', Journal of Critical Care, vol. 28, no. 1, pp. e11-e12.
View/Download from: Publisher's site

McGregor, C, Steadman, A, Percival, J & James, A 2013, 'Modelling health informatics capacity for neonatal intensive care patient journeys supported by interprofessional teams', International Journal of Biomedical Engineering and Technology, vol. 11, no. 3, pp. 301-301.
View/Download from: Publisher's site
View description>>

Neonatal intensive care is a highly complex area of healthcare requiring coordinated care between multiple healthcare professionals; as a result, information flow within the Neonatal Intensive Care Unit (NICU) can be very complex and impact quality of care. This paper presents initial research findings based on the use of the patient journey modelling technique known as PaJMa to audit the current state of health informatics within NICUs in Canada. In this paper, a case study including three Ontario NICUs is utilised and their 'Investigations' processes are modelled using PaJMa. Copyright © 2013 Inderscience Enterprises Ltd.

Mehrali, M, Latibari, ST, Mehrali, M, Indra Mahlia, TM & Cornelis Metselaar, HS 2013, 'Preparation and properties of highly conductive palmitic acid/graphene oxide composites as thermal energy storage materials', Energy, vol. 58, pp. 628-634.
View/Download from: Publisher's site

Mehrali, M, Latibari, ST, Mehrali, M, Indra Mahlia, TM, Cornelis Metselaar, HS, Naghavi, MS, Sadeghinezhad, E & Akhiani, AR 2013, 'Preparation and characterization of palmitic acid/graphene nanoplatelets composite with remarkable thermal conductivity as a novel shape-stabilized phase change material', Applied Thermal Engineering, vol. 61, no. 2, pp. 633-640.
View/Download from: Publisher's site

Meng, HD, Wu, PF, Song, YC & Xu, GD 2013, 'Research of Clustering Algorithm Based on Different Data Field Model', Advanced Materials Research, vol. 760-762, pp. 1925-1929.
View/Download from: Publisher's site
View description>>

Data field clustering algorithm possesses dynamic characteristics compared with other clustering algorithms. By changing the parameters of the data field model, the results can be dynamically adjusted to meet the target of feature extraction and knowledge discovery in different scales, but the selection and construction of data field model can give rise to different clustering results. This paper presents the different effectiveness of clustering based on various of data field models and its parameters, provides with the scheme to chose the best data field model fitting to the characteristics of the data radiation, and verifies that the best clustering effectiveness can be achieved with the value of radial energy in the golden section.

Merigo, JM 2013, 'The probabilistic weighted averaging distance and its application in group decision making', Kybernetes, vol. 42, no. 5, pp. 686-697.
View/Download from: Publisher's site

Merigó, JM & Gil-Lafuente, AM 2013, 'A Method for Decision Making Based on Generalized Aggregation Operators', International Journal of Intelligent Systems, vol. 28, no. 5, pp. 453-473.
View/Download from: Publisher's site

Merigó, JM & Gil-Lafuente, AM 2013, 'Induced 2-tuple linguistic generalized aggregation operators and their application in decision-making', Information Sciences, vol. 236, pp. 1-16.
View/Download from: Publisher's site

MERIGÓ, JM & YAGER, RR 2013, 'GENERALIZED MOVING AVERAGES, DISTANCE MEASURES AND OWA OPERATORS', International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, vol. 21, no. 04, pp. 533-559.
View/Download from: Publisher's site
View description>>

The concept of moving average is studied. We analyze several extensions by using generalized aggregation operators, obtaining the generalized moving average. The main advantage is that it provides a general framework that includes a wide range of specific cases including the geometric and the quadratic moving average. This analysis is extended by using the generalized ordered weighted averaging (GOWA) and the induced GOWA (IGOWA) operator. Thus, we get the generalized ordered weighted moving average (GOWMA) and the induced GOWMA (IGOWMA) operator. Some of their main properties are studied. We further extend this approach by using distance measures suggesting the concept of distance moving average and generalized distance moving average. We also consider the case with the OWA and the IOWA operator, obtaining the generalized ordered weighted moving averaging distance (GOWMAD) and the induced GOWMAD (IGOWMAD) operator. The paper ends with an application in multi-period decision making.

Merigó, JM & Yager, RR 2013, 'Norm Aggregations and OWA Operators', AGGREGATION FUNCTIONS IN THEORY AND IN PRACTISE, vol. 228, pp. 141-151.
View/Download from: Publisher's site

Merigó, JM, Gil-Lafuente, AM & Xu, Y 2013, 'Decision making with induced aggregation operators and the adequacy coefficient', Economic Computation and Economic Cybernetics Studies and Research, vol. 47, no. 1, pp. 185-202.
View description>>

We present a method for decision making by using induced aggregation operators. This method is very useful for business decision making problems such as product management, investment selection and strategic management. We introduce a new aggregation operator that uses the induced ordered weighted averaging (IOWA) operator and the weighted average in the adequacy coefficient. We call it the induced ordered weighted averaging weighted averaging adequacy coefficient (IOWAWAAC) operator. The main advantage is that it is able to deal with complex attitudinal characters in the aggregation process. Thus, we are able to give a better representation of the problem considering the complex environment that affects the decisions. Moreover, it is able to provide a unified framework between the OWA and the weighted average. We generalize it by using generalized aggregation operators, obtaining the induced generalized OWAWAAC (IGOWAWAAC) operator. We study some of the main properties of this approach. We end the paper with a numerical example of the new approach in a group decision making problem in strategic management.

Merigó, JM, Gil-Lafuente, AM & Xu, Y 2013, 'Decision making with induced aggregation operators and the adequacy coefficient', Economic Computation and Economic Cybernetics Studies and Research, vol. 9.
View description>>

We present a method for decision making by using induced aggregation operators. This method is very useful for business decision making problems such as product management, investment selection and strategic management. We introduce a new aggregation operator that uses the induced ordered weighted averaging (IOWA) operator and the weighted average in the adequacy coefficient. We call it the induced ordered weighted averaging weighted averaging adequacy coefficient (IOWAWAAC) operator. The main advantage is that it is able to deal with complex attitudinal characters in the aggregation process. Thus, we are able to give a better representation of the problem considering the complex environment that affects the decisions. Moreover, it is able to provide a unified framework between the OWA and the weighted average. We generalize it by using generalized aggregation operators, obtaining the induced generalized OWAWAAC (IGOWAWAAC) operator. We study some of the main properties of this approach. We end the paper with a numerical example of the new approach in a group decision making problem in strategic management.

Merigó, JM, Rocha, C & Garcia-Agreda, S 2013, 'Entrepreneurial intervention in electronic markets: the influence of customer participation', International Entrepreneurship and Management Journal, vol. 9, no. 4, pp. 521-529.
View/Download from: Publisher's site

Merigó, JM, Xu, Y & Zeng, S 2013, 'Group decision making with distance measures and probabilistic information', Knowledge-Based Systems, vol. 40, pp. 81-87.
View/Download from: Publisher's site

Mesgari, S, Poon, YF, Wang, Y, Thong, YX, Wang, J & Chan-Park, MB 2013, 'Polymer removal from electronic grade single-walled carbon nanotubes after gel electrophoresis', Journal of Materials Chemistry C, vol. 1, no. 41, pp. 6813-6813.
View/Download from: Publisher's site
View description>>

Semiconducting single-walled carbon nanotubes (s-SWNTs) are attractive candidates for next-generation printable semiconductors. However, all current synthesis methods produce s-SWNTs which are co-mingled with metallic (m-) SWNTs. Agarose gel electrophoresis has been reported to be an effective technique for the separation of s-SWNTs from m-SWNTs but removal of the agarose gel after separation has proved to be non-trivial. To remove agarose and the organic dispersing agent, specifically chondroitin sulfate in this work, from sorted s-SWNTs obtained by agarose gel electrophoresis, we employ the multi-step process involving a chlorosulfonic acid (HSO Cl) wash, a base wash and thermal annealing. Herein, we report the detailed analysis of the effects of the various steps for gel removal from SWNTs by Fourier transform infrared (FTIR) spectroscopy, thermal gravimetric analysis (TGA), FTIR-TGA, scanning electron microscopy, atomic force microscopy and Raman spectroscopy. The polymer-contaminated s-SWNTs were dissolved in HSO Cl, then selectively precipitated in a large excess of water, then washed with a base (NaOH) and finally thermally annealed. A detailed analysis confirmed that the final annealed samples contained almost no residual polymers. Field effect transistors were also fabricated from the annealed s-SWNTs and they showed good performance metrics with on/off ratio and mobility in the ∼10 to 10 and ∼2.5-9.5 cm V s ranges, respectively. Our method of gel electrophoresis and chlorosulfonic acid treatment produces clean and defect-free tubes which may be used for electronic applications. © 2013 The Royal Society of Chemistry. 3 3 2 6 2 -1 -1

MIAO, G & AIREY, D 2013, 'Breakage and ultimate states for a carbonate sand', Géotechnique, vol. 63, no. 14, pp. 1221-1229.
View/Download from: Publisher's site
View description>>

This paper presents data from ring-shear and one-dimensional compression tests, which have been used to cause breakage under large shear strains and large compressive stresses respectively. A comparison of the behaviour of carbonate sand in monotonic shear and compression is reported, focusing on void collapse, grading properties and particle shape evolution. Trends in breakage behaviour under compression and under shear were similar; however, ultimate steady-state properties differed significantly. The higher effect of shear breakage was evident, in that the steady-state gradings for sheared material had higher fractal dimensions, indicating that the gradings were finer, and morphological changes in particle shape were more significant. Steady-state gradings tended to be multi-fractal in nature rather than mono-fractal, and showed that a unique monotonic steady-state grading does not exist. Two types of ring-shear device were compared, and the differences between the results highlighted a dependence of steady-state properties on test apparatus configuration.

Milne, D & Witten, IH 2013, 'An open-source toolkit for mining Wikipedia', Artificial Intelligence, vol. 194, pp. 222-239.
View/Download from: Publisher's site

Mofijur, M, Atabani, AE, Masjuki, HH, Kalam, MA & Masum, BM 2013, 'A study on the effects of promising edible and non-edible biodiesel feedstocks on engine performance and emissions production: A comparative evaluation', Renewable and Sustainable Energy Reviews, vol. 23, pp. 391-404.
View/Download from: Publisher's site

Mofijur, M, Masjuki, HH, Kalam, MA & Atabani, AE 2013, 'Evaluation of biodiesel blending, engine performance and emissions characteristics of Jatropha curcas methyl ester: Malaysian perspective', Energy, vol. 55, pp. 879-887.
View/Download from: Publisher's site

Mofijur, M, Masjuki, HH, Kalam, MA, Atabani, AE, Shahabuddin, M, Palash, SM & Hazrat, MA 2013, 'Effect of biodiesel from various feedstocks on combustion characteristics, engine durability and materials compatibility: A review', Renewable and Sustainable Energy Reviews, vol. 28, pp. 441-455.
View/Download from: Publisher's site

Mohamed, AS, Lawal, B, Biswajeet, P, Shattri, M & Al-Sharif Abubakr, AA 2013, 'Modeling urban growth evolution and land-use changes using GIS based Cellular Automata and SLEUTH models: The case of Sana’a metropolitan city, Yemen', Environ Earth Sci, vol. 70, pp. 425-437.

Mondal, RN, Islam, S, Uddin, K & Hossain, A 2013, 'Effects of aspect ratio on unsteady solutions through curved duct flow', Applied Mathematics and Mechanics, vol. 34, no. 9, pp. 1107-1122.
View/Download from: Publisher's site
View description>>

The effects of the aspect ratio on unsteady solutions through the curved duct flow are studied numerically by a spectral based computational procedure with a temperature gradient between the vertical sidewalls for the Grashof number 100 ≤ Gr ≤ 2 000. The outer wall of the duct is heated while the inner wall is cooled and the top and bottom walls are adiabatic. In this paper, unsteady solutions are calculated by the time history analysis of the Nusselt number for the Dean numbers Dn = 100 and Dn = 500 and the aspect ratios 1 ≤ γ ≤ 3. Water is taken as a working fluid (Pr = 7.0). It is found that at Dn = 100, there appears a steady-state solution for small or large Gr. For moderate Gr, however, the steady-state solution turns into the periodic solution if γ is increased. For Dn = 500, on the other hand, it is analyzed that the steady-state solution turns into the chaotic solution for small and large Gr for any γ lying in the range. For moderate Gr at Dn = 500, however, the steady-state flow turns into the chaotic flow through the periodic oscillating flow if the aspect ratio is increased. © 2013 Shanghai University and Springer-Verlag Berlin Heidelberg.

Moreira, C & Wichert, A 2013, 'Finding academic experts on a multisensor approach using Shannon’s entropy', Expert Systems with Applications, vol. 40, no. 14, pp. 5740-5754.
View/Download from: Publisher's site

Mousavi, SM, Alavi, AH, Mollahasani, A, Gandomi, AH & Arab Esmaeili, M 2013, 'Formulation of soil angle of shearing resistance using a hybrid GP and OLS method', Engineering with Computers, vol. 29, no. 1, pp. 37-53.
View/Download from: Publisher's site

Movassaghi, S, Abolhasan, M & Lipman, J 2013, 'A Review of Routing Protocols in Wireless Body Area Networks', Journal of Networks, vol. 8, no. 3, pp. 559-575.
View/Download from: Publisher's site
View description>>

Recent technological advancements in wireless communication, integrated circuits and Micro-Electro-Mechanical Systems (MEMs) has enabled miniaturized, low-power, intelligent, invasive/ non-invasive micro and nano-technology sensor nodes placed in or on the human body for use in monitoring body function and its immediate environment referred to as Body Area Networks (BANs). BANs face many stringent requirements in terms of delay, power, temperature and network lifetime which need to be taken into serious consideration in the design of different protocols. Since routing protocols play an important role in the overall system performance in terms of delay, power consumption, temperature and so on, a thorough study on existing routing protocols in BANs is necessary. Also, the specific challenges of BANs necessitates the design of new routing protocols specifically designed for BANs. This paper provides a survey of existing routing protocols mainly proposed for BANs. These protocols are further classified into five main categories namely, temperature based, cross-layer, cluster based, cost-effective and QoS-based routing, where each protocol is described under its specified category. Also, comparison among routing protocols in each category is given. © 2013 ACADEMY PUBLISHER.

Mu, K, Jin, Z, Liu, W, Zowghi, D & Wei, B 2013, 'Measuring the significance of inconsistency in the Viewpoints framework', SCIENCE OF COMPUTER PROGRAMMING, vol. 78, no. 9, pp. 1572-1599.
View/Download from: Publisher's site
View description>>

Measuring inconsistency is crucial to effective inconsistency management in software development. A complete measurement of inconsistency should focus on not only the degree but also the significance of inconsistency. However, most of the approaches available only take the degree of inconsistency into account. The significance of inconsistency has not yet been given much needed consideration. This paper presents an approach for measuring the significance of inconsistency arising from different viewpoints in the Viewpoints framework. We call an individual set of requirements belonging to different viewpoints a combined requirements collection in this paper. We argue that the significance of inconsistency arising in a combined requirements collection is closely associated with global priority levels of requirements involved in the inconsistency. Here we assume that the global priority level of an individual requirement captures the relative importance of every viewpoint including this requirement as well as the local priority level of the requirement within the viewpoint. Then we use the synthesis of global priority levels of all the requirements in a combined collection to measure the significance of the collection. Following this, we present a scoring matrix function to measure the significance of inconsistency in an inconsistent combined requirements collection, which describes the contribution made by each subset of the requirements collection to the significance of the set of requirements involved in the inconsistency. An ordering relationship between inconsistencies of two combined requirements collections, termed more significant than, is also presented by comparing their significance scoring matrix functions. Finally, these techniques were implemented in a prototype tool called IncMeasurer, which we developed as a proof of concept. © 2012 Elsevier B.V. All rights reserved.

Müller-Lennert, M, Dupuis, F, Szehr, O, Fehr, S & Tomamichel, M 2013, 'On quantum Renyi entropies: a new generalization and some properties', J. Math. Phys., vol. 54, no. 12, p. 122203.
View/Download from: Publisher's site
View description>>

The Renyi entropies constitute a family of information measures thatgeneralizes the well-known Shannon entropy, inheriting many of its properties.They appear in the form of unconditional and conditional entropies, relativeentropies or mutual information, and have found many applications ininformation theory and beyond. Various generalizations of Renyi entropies tothe quantum setting have been proposed, most notably Petz's quasi-entropies andRenner's conditional min-, max- and collision entropy. Here, we argue thatprevious quantum extensions are incompatible and thus unsatisfactory. We propose a new quantum generalization of the family of Renyi entropies thatcontains the von Neumann entropy, min-entropy, collision entropy and themax-entropy as special cases, thus encompassing most quantum entropies in usetoday. We show several natural properties for this definition, includingdata-processing inequalities, a duality relation, and an entropic uncertaintyrelation.

Musiał, K & Kazienko, P 2013, 'Social networks on the Internet', World Wide Web, vol. 16, no. 1, pp. 31-72.
View/Download from: Publisher's site

Musial, K, Budka, M & Blysz, W 2013, 'Understanding the Other Side – The Inside Story of the INFER Project', Smart Innovation, Systems and Technologies, vol. 18, pp. 1-9.
View/Download from: Publisher's site
View description>>

In the last few years, the collaboration between research institutions and industry has become a well established process. Transfer of Knowledge (ToK) is required to accelerate the development of both sides and to enable them to unlock their full potential. European Commission within the Marie Curie Industry and Academia Partnerships & Pathways (IAPP) programme supports the cooperation between these two sectors at the international scale by funding research projects that as one of the objectives aim at enhancing human mobility. IAPP projects offer people from different institutions the possibility to move sector and country in order to provide, absorb and implement new knowledge in a professional industrial-academic environment. In this paper, one of such projects is presented and both academia and industry perspectives in regard to opportunities and challenges in Transfer of Knowledge are described. Computational Intelligence Platform for Evolving and Robust Predictive Systems (INFER) is the IAPP project that serves as a case study for this paper. © Springer-Verlag Berlin Heidelberg 2013.

Musial, K, Budka, M & Juszczyszyn, K 2013, 'Creation and growth of online social network', World Wide Web, vol. 16, no. 4, pp. 421-447.
View/Download from: Publisher's site

Naidu, G, Jeong, S, Vigneswaran, S & Rice, SA 2013, 'Microbial activity in biofilter used as a pretreatment for seawater desalination', Desalination, vol. 309, pp. 254-260.
View/Download from: Publisher's site
View description>>

Biofilters as a pretreatment process in seawater desalination can reduce biofoulants through adsorption and biodegradation. In this study, the performance of granular activated carbon (GAC) biofilter with three different filtration velocities was studied in terms of dissolved organic carbon (DOC) removal. This apart, the microbial activities in the biofilters were measured in terms of concentration of active biomass (adenosine tri-phosphate; ATP) and total cell count. Biofouling potential in biofilter effluents were assessed in terms of transparent exopolymer particles (TEP) and assimilable organic carbon (AOC) concentration. AOC was carried out using a new rapid bioluminescence method. Upon reaching mature stage, the GAC biofilters achieved high DOC removal efficiency of more than 60%, especially the low molecular weight organics. This organic removal was mostly attributed to active biomass on the GAC media. In addition, GAC biofilters led to significant reduction of the AOC and TEP concentration amounting to only 0.6. ±0.2. μg-C glucose/L and 5.3 ± 1.1. μg-C/L, respectively in effluents. Thus, GAC biofilter is an effective pretreatment in reducing biofouling potential. © 2012 Elsevier B.V.

Naik, T, Bressan, N, James, A & McGregor, C 2013, 'Design of temporal analysis for a novel premature infant pain profile using artemis', Journal of Critical Care, vol. 28, no. 1, pp. e4-e4.
View/Download from: Publisher's site

Nazir, R, Momeni, E, Armaghani, DJ & Amin, MFM 2013, 'Correlation between unconfined compressive strength and indirect tensile strength of limestone rock samples', Electronic Journal of Geotechnical Engineering, vol. 18 I, pp. 1737-1746.
View description>>

In Geotechnical Engineering, determining the Unconfined Compressive Strength (UCS) of rock is of prime importance as its role in design and analysis of geotechnical problems is crucial. Although laboratory test is the most direct way for estimating the rock compressive strength but UCS determination in the laboratory would be problematic if the rock masses are weathered mainly because obtaining proper core segments for testing purpose is difficult in this situation. Hence, the use of index testing as an alternative for predicting UCS is investigated by researchers. It is well established that indirect tensile strength or Brazilian Tensile Strength (BTS) is related to UCS. In this paper, in order to develop a new correlation between UCS and BTS, some laboratory tests on dry limestone specimens including 20 Unconfined Compression Tests (UCT) and 20 Brazilian Tests (BT) have been conducted. The paper also reviews some recent correlations between UCS and BTS as well as investigates the reliability of these correlations. Findings show the results of the experimental tests are in good agreement with previous studies. Based on the results, new strong correlation with coefficient of determination of 0.9 is introduced for predicting the UCS of limestone core samples from its BTS. A critical review on the degree of accuracy of recent correlations between UCS and BTS shows that apart from Kahraman's correlation, other correlations either overestimate or under estimate UCS of rock samples to a significant amount. © 2013, EJGE.

Neshat, M 2013, 'FAIPSO: fuzzy adaptive informed particle swarm optimization', Neural Computing and Applications, vol. 23, no. S1, pp. 95-116.
View/Download from: Publisher's site

Neshat, M, Sepidnam, G & Sargolzaei, M 2013, 'Swallow swarm optimization algorithm: a new method to optimization', Neural Computing and Applications, vol. 23, no. 2, pp. 429-454.
View/Download from: Publisher's site

Ngalim, SH, Magenau, A, Zhu, Y, Tønnesen, L, Fairjones, Z, Gooding, JJ, Böcking, T & Gaus, K 2013, 'Creating Adhesive and Soluble Gradients for Imaging Cell Migration with Fluorescence Microscopy', Journal of Visualized Experiments, no. 74.
View/Download from: Publisher's site

Nghiem, LTP, Soliman, T, Yeo, DCJ, Tan, HTW, Evans, TA, Mumford, JD, Keller, RP, Baker, RHA, Corlett, RT & Carrasco, LR 2013, 'Economic and Environmental Impacts of Harmful Non-Indigenous Species in Southeast Asia', PLoS ONE, vol. 8, no. 8, pp. e71255-e71255.
View/Download from: Publisher's site

Nguyen, DN & Krunz, M 2013, 'Cooperative MIMO in wireless networks: recent developments and challenges', IEEE Network, vol. 27, no. 4, pp. 48-54.
View/Download from: Publisher's site
View description>>

Cooperative multiple-input multiple-output (CMIMO) is a form of cooperative communications. CMIMO emulates the functionality of multi-antenna systems by grouping wireless devices to operate as virtual multi-antenna nodes. Its main objectives are to boost network throughput, conserve energy, and improve network coverage. In this article, we discuss recent applications of CMIMO in contemporary wireless networks, including wireless sensor, mobile ad hoc, wireless LAN, cognitive, and cellular networks. We first review CMIMO techniques at the physical layer. We then focus on state-of-the-art approaches for realizing CMIMO at the network layer, and classify these approaches based on their objectives and application scenarios, and how they exploit CMIMO gains. We highlight several open issues that present challenges to practical deployment of CMIMO. © 1986-2012 IEEE.

Nguyen, HB, Eshete, B, Lau, KHW, Sai, A, Villarin, M & Baylink, D 2013, 'Serum 1,25-Dihydroxyvitamin D: An Outcome Prognosticator in Human Sepsis', PLoS ONE, vol. 8, no. 5, pp. e64348-e64348.
View/Download from: Publisher's site
View description>>

In sepsis, the vitamin D active metabolite 1,25-dihydroxyvitamin D (1,25(OH)2D) may play a crucial role by its action to produce cathelicidin and improve endothelial barrier function, such that a deficiency in 1,25(OH)2D is associated with poor outcome. To test our hypothesis, we performed analysis of stored plasma samples from a prospective observational study in 91 patients with sepsis, age of 59.1+/-2.0 years, 52.7% females, and 11.0% deaths at 30 days. Vitamin D status, including 25-hydroxyvitamin D (25(OH)D), 1,25(OH)2D, 24,25-dihydroxyvitamin D (24,25(OH)2D), and parathyroid hormone (PTH), were measured daily over 3 days after hospital admission. At baseline, 1,25(OH)2D was significantly different between survivors vs. non-survivors. But there was no significant difference in 25(OH)D, 24,25(OH)2D, and PTH. In a multivariable binomial logistic regression model, age, total calcium and 1,25(OH)2D were significant predictors of 30-day mortality. Kaplan Meier analysis showed that patients with mean 1,25(OH)2D measured over 3 days of < = 13.6 pg/mL had 57.1% 30-day survival compared to 91.7% in patients with 1,25 (OH)2D level >13.6 pg/mL (p<0.01). From repeated measures regression analysis, there was significant increase in 1,25(OH)2D for increases in 25(OH)D in both survivors and non-survivors. However, compared to survivors, the low 25(OH)D in non-survivors was insufficient to account for the larger decrease in 1,25(OH)2D, indicating a dysfunctional 1α-hydroxylase. Additionally, there was a significant negative correlation between PTH and 1,25(OH)2D in both survivors and non-survivors, suggesting a severe impairment in the effect of PTH to increase renal 1α-hydroxylase activity. In conclusion, low 1,25(OH)2D levels are associated with increased 30-day mortality in sepsis patients, likely due to impaired 25(OH)D hydroxylation and PTH insensitivity. Our data also suggest that the active metabolite 1,25(OH)2D may be an important therapeutic target in the design of...

Nguyen, LN, Hai, FI, Kang, J, Nghiem, LD, Price, WE, Guo, W, Ngo, HH & Tung, K-L 2013, 'Comparison between sequential and simultaneous application of activated carbon with membrane bioreactor for trace organic contaminant removal', BIORESOURCE TECHNOLOGY, vol. 130, pp. 412-417.
View/Download from: Publisher's site
View description>>

The removal efficiency of 22 selected trace organic contaminants by sequential application of granular activated carbon (GAC) and simultaneous application of powdered activated carbon (PAC) with membrane bioreactor (MBR) was compared in this study. Both sequential application of GAC following MBR treatment (MBRâGAC) and simultaneous application of PAC within MBR (PACâMBR) achieved improved removal (over 95%) of seven hydrophilic and biologically persistent compounds, which were less efficiently removed by MBR-only treatment (negligible to 70%). However, gradual breakthrough of these compounds occurred over an extended operation period. Charged compounds, particularly, fenoprop and diclofenac, demonstrated the fastest breakthrough (complete and 50â70%, in MBRâGAC and PACâMBR, respectively). Based on a simple comparison from the long-term performance stability and activated carbon usage points of view, PACâMBR appears to be a better option than MBRâGAC treatment.

Nguyen, LN, Hai, FI, Kang, J, Price, WE & Nghiem, LD 2013, 'Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds', Journal of Environmental Management, vol. 119, pp. 173-181.
View/Download from: Publisher's site

Nguyen, LN, Hai, FI, Kang, J, Price, WE & Nghiem, LD 2013, 'Removal of emerging trace organic contaminants by MBR-based hybrid treatment processes', International Biodeterioration & Biodegradation, vol. 85, pp. 474-482.
View/Download from: Publisher's site

Nguyen, LN, Hai, FI, Yang, S, Kang, J, Leusch, FDL, Roddick, F, Price, WE & Nghiem, LD 2013, 'Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi', Bioresource Technology, vol. 148, pp. 234-241.
View/Download from: Publisher's site

Nguyen, ND & Nguyen, TV 2013, 'Risks of complaints and adverse disciplinary findings against international medical graduates in Victoria and Western Australia', Medical Journal of Australia, vol. 198, no. 7, pp. 367-367.
View/Download from: Publisher's site

Nguyen, TAH, Ngo, HH, Guo, WS, Zhang, J, Liang, S & Tung, KL 2013, 'Feasibility of iron loaded 'okara' for biosorption of phosphorous in aqueous solutions', BIORESOURCE TECHNOLOGY, vol. 150, no. 1, pp. 42-49.
View/Download from: Publisher's site
View description>>

This study investigated the feasibility of using soybean milk by-products (okara) as a sustainable biosorbent for phosphate removal in water and wastewater. The results show that raw okara could hardly decontaminate phosphate from aqueous solutions. Hence, in this work, okara was modified by being cationized using FeCl3 0.25M (namely iron loaded okara, ILO) to enhance the phosphorus adsorption capacity. The phosphate sorption onto ILO was well achieved under the conditions of pH 3, initial phosphorous concentration of 25mg/L, biosorbent dose of 20mg/L and contact time of 7h. Based on Langmuir model, the maximum adsorption capacity of phosphate by ILO was 4.785mg/g. The effects of interfering anions were in the order of CO32->SO42->NO3 It was also observed that Fe(III) was detached during operation. This problem can hinder the sustainable usability of ILO. Thus, further research would be necessary for improving the modification method. © 2013 Elsevier Ltd.

Nguyen, TAH, Ngo, HH, Guo, WS, Zhang, J, Liang, S, Yue, QY, Li, Q & Nguyen, TV 2013, 'Applicability of agricultural waste and by-products for adsorptive removal of heavy metals from wastewater', BIORESOURCE TECHNOLOGY, vol. 148, no. 1, pp. 574-585.
View/Download from: Publisher's site
View description>>

This critical review discusses the potential use of agricultural waste based biosorbents (AWBs) for sequestering heavy metals in terms of their adsorption capacities, binding mechanisms, operating factors and pretreatment methods. The literature survey indicates that AWBs have shown equal or even greater adsorption capacities compared to conventional adsorbents. Thanks to modern molecular biotechnologies, the roles of functional groups in biosorption process are better understood. Of process factors, pH appears to be the most influential. In most cases, chemical pretreatments bring about an obvious improvement in metal uptake capacity. However, there are still several gaps, which require further investigation, such as (i) searching for novel, multi-function AWBs, (ii) developing cost-effective modification methods and (iii) assessing AWBs under multi-metal and real wastewater systems. Once these challenges are settled, the replacement of traditional adsorbents by AWBs in decontaminating heavy metals from wastewater can be expected in the future. © 2013 Elsevier Ltd.

Nguyen, TT, Ngo, HH & Guo, W 2013, 'Pilot scale study on a new membrane bioreactor hybrid system in municipal wastewater treatment', BIORESOURCE TECHNOLOGY, vol. 141, pp. 8-12.
View/Download from: Publisher's site
View description>>

A pilot scale membrane bioreactor hybrid system (MBR-HS) was evaluated for municipal wastewater treatment. This novel system comprised of a granular activated carbon-sponge fluidized bed bioreactor (GACS-FBBR) followed by a submerge membrane bioreactor (MBR) with the capacity of 2L/min. The results indicated that the MBR-HS could effectively remove 90% DOC and 95% NH4-N. PO4-P removal efficiency was remained stable at about 70% throughout the experiment. Specific oxygen uptake rate (SOUR) of activated sludge increased from 0.72 to 2.21mg O2/gVSSh for the first 10days and then followed by a steady stage until the end of experiment. Sludge volume index (SVI) was always below 50mL/g, demonstrated an excellent settling properties of sludge. The system also showed an achievement in terms of low trans-membrane pressure (TMP) development rate. The TMP increasing rate was only 0.65kPa/day, suggesting GACS-FBBR can be a promising pre-treatment for MBR. © 2013 Elsevier Ltd.

Nguyen, TV & Eisman, JA 2013, 'Genetic profiling and individualized assessment of fracture risk', Nature Reviews Endocrinology, vol. 9, no. 3, pp. 153-161.
View/Download from: Publisher's site
View description>>

Osteoporosis and its consequence of fragility fracture impose a considerable demand on health-care services because fracture is associated with a series of adverse events, including re-fracture and mortality. One of the major priorities in osteoporosis care is the development of predictive models to identify individuals at high risk of fracture for early intervention and management. Existing predictive models include clinical factors and anthropometric characteristics but have not considered genetic variants in the prediction. Genome-wide association studies conducted in the past decade have identified several genetic variants relevant to fracture risk. These genetic variants are common in frequency but have very modest effect sizes. A remaining challenge is to use these genetic data to individualize fracture risk assessment on the basis of an individual's genetic risk profile. Empirical and simulation studies have shown that the usefulness of a single genetic variant for fracture risk assessment is very limited, but a profile of 50 genetic variants, each with odds ratio ranging from 1.02 to 1.15, could improve the accuracy of fracture prediction beyond that obtained by use of existing clinical risk factors. Thus, genetic profiling when integrated with existing risk assessment models could inform a more accurate prediction of fracture risk in an individual.

Nguyen, TV, Center, JR & Eisman, JA 2013, 'Individualized fracture risk assessment', Current Opinion in Rheumatology, vol. 25, no. 4, pp. 532-541.
View/Download from: Publisher's site
View description>>

Purpose of review Fragility fracture is a major public health burden, because it is associated with a substantial morbidity and mortality. Risk prediction models, including the Fracture Risk Assessment Tool (FRAX) and Garvan Fracture Risk Calculator (GFR

Nguyen, VT, Rujikiatkamjorn, C & Indraratna, B 2013, 'Analytical Solutions for Filtration Process Based on Constriction Size Concept', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 7, pp. 1049-1061.
View/Download from: Publisher's site

Ni, B, Yuan, Z, Chandran, K, Vanrolleghem, PA & Murthy, S 2013, 'Evaluating four mathematical models for nitrous oxide production by autotrophic ammonia‐oxidizing bacteria', Biotechnology and Bioengineering, vol. 110, no. 1, pp. 153-163.
View/Download from: Publisher's site
View description>>

AbstractThere is increasing evidence showing that ammonia‐oxidizing bacteria (AOB) are major contributors to N2O emissions from wastewater treatment plants (WWTPs). Although the fundamental metabolic pathways for N2O production by AOB are now coming to light, the mechanisms responsible for N2O production by AOB in WWTP are not fully understood. Mathematical modeling provides a means for testing hypotheses related to mechanisms and triggers for N2O emissions in WWTP, and can then also become a tool to support the development of mitigation strategies. This study examined the ability of four mathematical model structures to describe two distinct mechanisms of N2O production by AOB. The production mechanisms evaluated are (1) N2O as the final product of nitrifier denitrification with NO as the terminal electron acceptor and (2) N2O as a byproduct of incomplete oxidation of hydroxylamine (NH2OH) to NO. The four models were compared based on their ability to predict N2O dynamics observed in three mixed culture studies. Short‐term batch experimental data were employed to examine model assumptions related to the effects of (1) NH concentration variations, (2) dissolved oxygen (DO) variations, (3) NOJournal of Membrane Science, vol. 428, pp. 163-171.
View/Download from: Publisher's site

Ni, B-J, Ruscalleda, M, Pellicer-Nàcher, C & Smets, BF 2013, 'Reply to Comment on “Modeling Nitrous Oxide Production during Biological Nitrogen Removal via Nitrification and Denitrification: Extensions to the General ASM Models”', Environmental Science & Technology, vol. 47, no. 20, pp. 11910-11911.
View/Download from: Publisher's site

Ni, B-J, Smets, BF, Yuan, Z & Pellicer-Nàcher, C 2013, 'Model-based evaluation of the role of Anammox on nitric oxide and nitrous oxide productions in membrane aerated biofilm reactor', Journal of Membrane Science, vol. 446, pp. 332-340.
View/Download from: Publisher's site

Ni, B-J, Ye, L, Law, Y, Byers, C & Yuan, Z 2013, 'Mathematical Modeling of Nitrous Oxide (N₂O) Emissions from Full-Scale Wastewater Treatment Plants', Environmental Science & Technology, vol. 47, no. 14, pp. 7795-7803.
View/Download from: Publisher's site

Ni, J, Indraratna, B, Geng, X-Y, Carter, JP & Rujikiatkamjorn, C 2013, 'Radial consolidation of soft soil under cyclic loads', Computers and Geotechnics, vol. 50, pp. 1-5.
View/Download from: Publisher's site

Ni, W & Collings, IB 2013, 'A New Adaptive Small-Cell Architecture', IEEE Journal on Selected Areas in Communications, vol. 31, no. 5, pp. 829-839.
View/Download from: Publisher's site

Ni, W, Collings, IB & Liu, RP 2013, 'Decentralized User-Centric Scheduling with Low Rate Feedback for Mobile Small Cells', IEEE Transactions on Wireless Communications, vol. 12, no. 12, pp. 6106-6120.
View/Download from: Publisher's site
View description>>

Small cells with wireless backhaul are promising, whereas challenges of severe overlapping coverage and strong interference are yet to be addressed. Coordinating small cells could resolve the challenges; however, existing multicell coordinated beamforming techniques involve high cost of communication overhead, synchronization and backhaul. Such problems may deteriorate in practical cellular applications, where there could be many users, each generating high channel feedback overhead to compete for an opportunity of being scheduled, and the downlink data signals of the coordinated cells need to be precisely synchronized at each of the users. We propose a new scheme, which cuts the overhead by 80% and enables the coordination to be practically implemented in a decentralized manner. Our scheme is a user-centric downlink scheduling approach, where mobile terminals trigger and participate in the scheduling decisions of small cells. We also develop a new recursive algorithm to optimize the quantization levels of mobile terminals' feedback, minimizing the feedback requirement. Analysis, confirmed by simulations, shows that our scheme is able to achieve 94.4% of the sum-rate upper-bound which can only be approached by idealized centralized coordination. In terms of throughput, given the 80% reduced overhead, our scheme is 139.5% better than the idealized centralized coordination approach. © 2013 IEEE.

Niazi, M, Ikram, N, Gill, AQ & Ul Hassan, MR 2013, 'Special Issue on 'Empirical Studies in Software Engineering'', IET SOFTWARE, vol. 7, no. 6, pp. 295-297.
View/Download from: Publisher's site

Niu, L, Lu, J, Zhang, G & Wu, D 2013, 'FACETS: A cognitive business intelligence system', INFORMATION SYSTEMS, vol. 38, no. 6, pp. 835-862.
View/Download from: Publisher's site
View description>>

A cognitive decision support system called FACETS was developed and evaluated based on the situation retrieval (SR) model. The aim of FACETS is to provide decision makers cognitive decision support in ill-structured decision situations. The design and development of FACETS includes novel concepts, models, algorithms and system architecture, such as ontology and experience representation, situation awareness parsing, data warehouse query construction and guided situation presentation. The experiments showed that FACETS is able to play a significant role in supporting ill-structured decision making through developing and enriching situation awareness. © 2013 Elsevier Ltd.

Nizami, S, Green, JR & McGregor, C 2013, 'Implementation of Artifact Detection in Critical Care: A Methodological Review', IEEE Reviews in Biomedical Engineering, vol. 6, pp. 127-142.
View/Download from: Publisher's site
View description>>

Artifact detection (AD) techniques minimize the impact of artifacts on physiologic data acquired in critical care units (CCU) by assessing quality of data prior to clinical event detection (CED) and parameter derivation (PD). This methodological review introduces unique taxonomies to synthesize over 80 AD algorithms based on these six themes: 1) CCU; 2) physiologic data source; 3) harvested data; 4) data analysis; 5) clinical evaluation; and 6) clinical implementation. Review results show that most published algorithms: a) are designed for one specific type of CCU; b) are validated on data harvested only from one OEM monitor; c) generate signal quality indicators (SQI) that are not yet formalized for useful integration in clinical workflows; d) operate either in standalone mode or coupled with CED or PD applications; e) are rarely evaluated in real-time; and f) are not implemented in clinical practice. In conclusion, it is recommended that AD algorithms conform to generic input and output interfaces with commonly defined data: 1) type; 2) frequency; 3) length; and 4) SQIs. This shall promote: a) reusability of algorithms across different CCU domains; b) evaluation on different OEM monitor data; c) fair comparison through formalized SQIs; d) meaningful integration with other AD, CED and PD algorithms; and e) real-time implementation in clinical workflows. © 2008-2011 IEEE.

Norris, RP, Afonso, J, Bacon, D, Beck, R, Bell, M, Beswick, RJ, Best, P, Bhatnagar, S, Bonafede, A, Brunetti, G, Budavári, T, Cassano, R, Condon, JJ, Cress, C, Dabbech, A, Feain, I, Fender, R, Ferrari, C, Gaensler, BM, Giovannini, G, Haverkorn, M, Heald, G, Van der Heyden, K, Hopkins, AM, Jarvis, M, Johnston-Hollitt, M, Kothes, R, Van Langevelde, H, Lazio, J, Mao, MY, Martínez-Sansigre, A, Mary, D, Mcalpine, K, Middelberg, E, Murphy, E, Padovani, P, Paragi, Z, Prandoni, I, Raccanelli, A, Rigby, E, Roseboom, IG, Röttgering, H, Sabater, J, Salvato, M, Scaife, AMM, Schilizzi, R, Seymour, N, Smith, DJB, Umana, G, Zhao, G-B & Zinn, P-C 2013, 'Radio Continuum Surveys with Square Kilometre Array Pathfinders', Publications of the Astronomical Society of Australia, vol. 30.
View/Download from: Publisher's site
View description>>

AbstractIn the lead-up to the Square Kilometre Array (SKA) project, several next-generation radio telescopes and upgrades are already being built around the world. These include APERTIF (The Netherlands), ASKAP (Australia),e-MERLIN (UK), VLA (USA), e-EVN (based in Europe), LOFAR (The Netherlands), MeerKAT (South Africa), and the Murchison Widefield Array. Each of these new instruments has different strengths, and coordination of surveys between them can help maximise the science from each of them. A radio continuum survey is being planned on each of them with the primary science objective of understanding the formation and evolution of galaxies over cosmic time, and the cosmological parameters and large-scale structures which drive it. In pursuit of this objective, the different teams are developing a variety of new techniques, and refining existing ones. To achieve these exciting scientific goals, many technical challenges must be addressed by the survey instruments. Given the limited resources of the global radio-astronomical community, it is essential that we pool our skills and knowledge. We do not have sufficient resources to enjoy the luxury of re-inventing wheels. We face significant challenges in calibration, imaging, source extraction and measurement, classification and cross-identification, redshift determination, stacking, and data-intensive research. As these instruments extend the observational parameters, we will face further unexpected challenges in calibration, imaging, and interpretation. If we are to realise the full scientific potential of these expensive instruments, it is essential that we devote enough resources and careful study to understanding the instrumental effects and how they will affect the data. We have established an SKA Radio Continuum Survey working group, whose prime role is to maximise science from these instruments by ensuring we share resources and experti...

Noushini, A, Samali, B & Vessalas, K 2013, 'Effect of polyvinyl alcohol (PVA) fibre on dynamic and material properties of fibre reinforced concrete', CONSTRUCTION AND BUILDING MATERIALS, vol. 49, no. 1, pp. 374-383.
View/Download from: Publisher's site
View description>>

The effect of uncoated polyvinyl alcohol (PVA) fibre addition on dynamic properties of fibre reinforced concrete (FRC) has been investigated in the current study. PVA fibres of two geometric lengths (6 and 12 mm) with aspect ratio of 428 and 857, respectively, were utilised. Fly ash was also used as partial replacement of Portland cement in all mixes. Based on total concrete volume, two fibre fractions of 0.25% and 0.5% were evaluated for their effect on fundamental frequency, dynamic modulus of elasticity and damping ratio of FRC. 28-Day static mechanical properties are also measured. From the results, it can be stated that although PVA fibre addition in low volume fractions used in this study significantly enhance the mechanical properties of FRC, it has no considerable effect on concrete material damping characteristics. © 2013 Elsevier Ltd. All rights reserved.

Oberst, S, Lai, JCS & Marburg, S 2013, 'Guidelines for numerical vibration and acoustic analysis of disc brake squeal using simple models of brake systems', Journal of Sound and Vibration, vol. 332, no. 9, pp. 2284-2299.
View/Download from: Publisher's site

Offringa, AR, de Bruyn, AG, Zaroubi, S, Koopmans, LVE, Wijnholds, SJ, Abdalla, FB, Brouw, WN, Ciardi, B, Iliev, IT, Harker, GJA, Mellema, G, Bernardi, G, Zarka, P, Ghosh, A, Alexov, A, Anderson, J, Asgekar, A, Avruch, IM, Beck, R, Bell, ME, Bell, MR, Bentum, MJ, Best, P, Bîrzan, L, Breitling, F, Broderick, J, Brüggen, M, Butcher, HR, de Gasperin, F, de Geus, E, de Vos, M, Duscha, S, Eislöffel, J, Fallows, RA, Ferrari, C, Frieswijk, W, Garrett, MA, Grießmeier, J, Hassall, TE, Horneffer, A, Iacobelli, M, Juette, E, Karastergiou, A, Klijn, W, Kondratiev, VI, Kuniyoshi, M, Kuper, G, van Leeuwen, J, Loose, M, Maat, P, Macario, G, Mann, G, McKean, JP, Meulman, H, Norden, MJ, Orru, E, Paas, H, Pandey-Pommier, M, Pizzo, R, Polatidis, AG, Rafferty, D, Reich, W, van Nieuwpoort, R, Röttgering, H, Scaife, AMM, Sluman, J, Smirnov, O, Sobey, C, Tagger, M, Tang, Y, Tasse, C, Veen, ST, Toribio, C, Vermeulen, R, Vocks, C, van Weeren, RJ, Wise, MW & Wucknitz, O 2013, 'The brightness and spatial distributions of terrestrial radio sources', Monthly Notices of the Royal Astronomical Society, vol. 435, no. 1, pp. 584-596.
View/Download from: Publisher's site

Offringa, AR, de Bruyn, AG, Zaroubi, S, van Diepen, G, Martinez-Ruby, O, Labropoulos, P, Brentjens, MA, Ciardi, B, Daiboo, S, Harker, G, Jelić, V, Kazemi, S, Koopmans, LVE, Mellema, G, Pandey, VN, Pizzo, RF, Schaye, J, Vedantham, H, Veligatla, V, Wijnholds, SJ, Yatawatta, S, Zarka, P, Alexov, A, Anderson, J, Asgekar, A, Avruch, M, Beck, R, Bell, M, Bell, MR, Bentum, M, Bernardi, G, Best, P, Birzan, L, Bonafede, A, Breitling, F, Broderick, JW, Brüggen, M, Butcher, H, Conway, J, de Vos, M, Dettmar, RJ, Eisloeffel, J, Falcke, H, Fender, R, Frieswijk, W, Gerbers, M, Griessmeier, JM, Gunst, AW, Hassall, TE, Heald, G, Hessels, J, Hoeft, M, Horneffer, A, Karastergiou, A, Kondratiev, V, Koopman, Y, Kuniyoshi, M, Kuper, G, Maat, P, Mann, G, McKean, J, Meulman, H, Mevius, M, Mol, JD, Nijboer, R, Noordam, J, Norden, M, Paas, H, Pandey, M, Pizzo, R, Polatidis, A, Rafferty, D, Rawlings, S, Reich, W, Röttgering, HJA, Schoenmakers, AP, Sluman, J, Smirnov, O, Sobey, C, Stappers, B, Steinmetz, M, Swinbank, J, Tagger, M, Tang, Y, Tasse, C, van Ardenne, A, van Cappellen, W, van Duin, AP, van Haarlem, M, van Leeuwen, J, van Weeren, RJ, Vermeulen, R, Vocks, C, Wijers, RAMJ, Wise, M & Wucknitz, O 2013, 'The LOFAR radio environment', Astronomy & Astrophysics, vol. 549, pp. A11-A11.
View/Download from: Publisher's site

Ong, HC, Silitonga, AS, Masjuki, HH, Mahlia, TMI, Chong, WT & Boosroh, MH 2013, 'Production and comparative fuel properties of biodiesel from non-edible oils: Jatropha curcas, Sterculia foetida and Ceiba pentandra', Energy Conversion and Management, vol. 73, pp. 245-255.
View/Download from: Publisher's site

Ortiz-Padilla, C, Gallego-Ortega, D, Browne, BC, Hochgräfe, F, Caldon, CE, Lyons, RJ, Croucher, DR, Rickwood, D, Ormandy, CJ, Brummer, T & Daly, RJ 2013, 'Functional characterization of cancer-associated Gab1 mutations', Oncogene, vol. 32, no. 21, pp. 2696-2702.
View/Download from: Publisher's site

Othman, SH & Beydoun, G 2013, 'Model-driven disaster management', INFORMATION & MANAGEMENT, vol. 50, no. 5, pp. 218-228.
View/Download from: Publisher's site

Ou, G, Wang, Y, Hao, H & Zhu, XQ 2013, 'Identification of de-bonding between steel bars and concrete using wavelet techniques: Comparative study', Australian Journal of Structural Engineering, vol. 14, no. 1, pp. 43-56.
View/Download from: Publisher's site
View description>>

The interface between steel bar and concrete plays an important role in retaining the strength of reinforced concrete structures. When the interface is damaged by cracking, de-bonding between the two materials and/or other kinds of damage, significant degradation of the structural performances will occur owing to loss of composite actions. In this study, wave propagation on several steel bars embedded in two concrete plates with different de-bonding scenarios is tested. Piezoelectric actuators and sensors are attached to steel bars for recording input and response signals. This paper uses the wavelet transform combined with the wavelet packet decomposition, component energy and Shannon entropy to analyze the experimental results. The results demonstrate that both damage index and relative entropy are sensitive to the existence of de-bonding damage and change linearly with de-bonding length when there is only a single de-bonding damage, while energy and entropy distribution are largely influenced by the property of the excitation signal. When multiple de-bonding exists, however, both the damage index and relative entropy have no such clear tendency. © Institution of Engineers Australia, 2013.

Palacios‐Marqués, D, Peris‐Ortiz, M & Merigó, JM 2013, 'The effect of knowledge transfer on firm performance', Management Decision, vol. 51, no. 5, pp. 973-985.
View/Download from: Publisher's site
View description>>

PurposeThis work aims to analyse the effect of a holistic business view, competency‐based management, continuous learning and information technology infrastructure on knowledge transfer and the subsequent effect on firm performance.Design/methodology/approachStructural equation models and a survey of 222 firms from the Spanish biotechnology and telecommunications industries verify the mediator role of knowledge transfer.FindingsThe implications of confirming these hypotheses for managers are that by emphasising the creation of a holistic business view, competency‐based management, promoting continuous learning and improving information technology infrastructure, managers will improve knowledge transfer and positively influence the creation of superior firm performance.Originality/valueIt is shown that in knowledge‐intensive industries, knowledge transfer acts as a mediating variable between a holistic view of the firm, competency‐based management, continuous learning and information and communication technologies infrastructure and firm performance.

Palash, SM, Kalam, MA, Masjuki, HH, Masum, BM, Rizwanul Fattah, IM & Mofijur, M 2013, 'Impacts of biodiesel combustion on NOx emissions and their reduction approaches', Renewable and Sustainable Energy Reviews, vol. 23, pp. 473-490.
View/Download from: Publisher's site

Palash, SM, Masjuki, HH, Kalam, MA, Masum, BM, Sanjid, A & Abedin, MJ 2013, 'State of the art of NOx mitigation technologies and their effect on the performance and emission characteristics of biodiesel-fueled Compression Ignition engines', Energy Conversion and Management, vol. 76, pp. 400-420.
View/Download from: Publisher's site

Pan, Y, Ni, B-J & Yuan, Z 2013, 'Modeling Electron Competition among Nitrogen Oxides Reduction and N₂O Accumulation in Denitrification', Environmental Science & Technology, vol. 47, no. 19, pp. 11083-11091.
View/Download from: Publisher's site

Pan, Y, Ni, B-J, Bond, PL, Ye, L & Yuan, Z 2013, 'Electron competition among nitrogen oxides reduction during methanol-utilizing denitrification in wastewater treatment', Water Research, vol. 47, no. 10, pp. 3273-3281.
View/Download from: Publisher's site

Pang, SC, Masjuki, HH, Kalam, MA & Hazrat, MA 2013, 'Correlation of Engine Cooling System Parameters and SegmentedHeat Exchangers’ Analysis', Journal of Applied Sciences, vol. 13, no. 11, pp. 2027-2032.
View/Download from: Publisher's site

Pang, SC, Masjuki, HH, Kalam, MA & Hazrat, MA 2013, 'Liquid absorption and solid adsorption system for household, industrial and automobile applications: A review', Renewable and Sustainable Energy Reviews, vol. 28, pp. 836-847.
View/Download from: Publisher's site

Pant, HR, Pant, B, Park, CH, Kim, HJ, Lee, DS, Tijing, LD, Hwang, BS, Kim, HY & Kim, CS 2013, 'RGO/Nylon-6 composite mat with unique structural features and electrical properties obtained from electrospinning and hydrothermal process', Fibers and Polymers, vol. 14, no. 6, pp. 970-975.
View/Download from: Publisher's site
View description>>

In this work, the reduced graphene oxide (RGO) sheets were effectively uploaded through nylon-6 fibers using combined process of electrospinning and hydrothermal treatment. Good dispersion of graphene oxide (GO) with nylon-6 solution could allow to upload GO sheets through nylon-6 fibers and facilitate the formation of spider-wave-like nano-nets during electrospinning. GO sheets present on/into nylon-6 spider-wave-like nano-nets were further reduced to RGO using hydrothermal treatment. The impregnated GO sheets into nylon-6 nanofibers and their reduction during hydrothermal treatment were confirmed by FE-SEM, TEM, FT-IR and Raman spectra. The electrical characteristics of pristine nylon-6, GO/nylon-6 and RGO/nylon-6 nanofibers were investigated and it was found that RGO/nylon-6 composite mat had better electrical conductivity than others. The formation of spider-wave-like nano-nets as well as indirect route of incorporation of RGO sheets on electrospun nylon-6 mat may open a new direction for future graphene/polymer electronics.

Pant, HR, Pant, B, Pokharel, P, Kim, HJ, Tijing, LD, Park, CH, Lee, DS, Kim, HY & Kim, CS 2013, 'Photocatalytic TiO2–RGO/nylon-6 spider-wave-like nano-nets via electrospinning and hydrothermal treatment', Journal of Membrane Science, vol. 429, pp. 225-234.
View/Download from: Publisher's site
View description>>

A new route for the formation of reusable photocatalytic TiO2 (P25)-reduced graphene oxide/nylon-6 (P25-RGO/nylon-6) composite filter membrane using electrospinning and hydrothermal techniques is being reported. Addition of small amount of graphene oxide (GO) into nylon-6 solution prior to electrospinning was able to cause the formation of a large-scale uniform bimodal fibers with distributed thick (≈200 nm) and thin (≈13 nm) fiber diameters in spider-wave-like nano-nets by electrospinning, and facilitated the deposition of P25 NPs during its reduction at the time of hydrothermal treatment. Different analyses confirmed that GO was successfully incorporated into the electrospun nylon-6 fibers and simultaneous reduction of GO as well as deposition of P25 NPs on the surface of fibers was possible during hydrothermal treatment. The photoactive property of the as-prepared nanocomposites was tested against methylene blue. The results showed that P25-RGO/nylon-6 nanocomposite mat is more effective than the TiO2/nylon-6 electrospun composite mat. The water flux at a given pressure of different mats was measured to find out the filter efficiency of the membranes. The as-prepared composite mat has great potentiality as an economically–friendly water filter media and reusable photocatalyst.

Pant, HR, Pant, B, Sharma, RK, Amarjargal, A, Kim, HJ, Park, CH, Tijing, LD & Kim, CS 2013, 'Antibacterial and photocatalytic properties of Ag/TiO2/ZnO nano-flowers prepared by facile one-pot hydrothermal process', Ceramics International, vol. 39, no. 2, pp. 1503-1510.
View/Download from: Publisher's site
View description>>

In this paper, a simple and efficient strategy of one-pot synthesis of Ag doped TiO2/ZnO photocatalyst was developed using hydrothermal process. Simultaneous crystallization of Ag and ZnO crystals from their precursor solution containing P25 (TiO2) NPs could form effectively bonded Ag/TiO2/ZnO composite photocatalyst during hydrothermal treatment. Several analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR spectroscopy, and photoluminescence spectroscopy have been used to characterize the resulting Ag/TiO2/ZnO photocatalyst. Results showed that ZnO nano-flowers doped with TiO2 and Ag NPs were formed by this simple facile one-step process. The unique properties of Ag NPs on binary semiconductor composite not only provide the decreased rate of electron-hole separation but also prevent from the loss of photocatalyst during recovery due to the fixed attachment of Ag and TiO2 NPs on the surface of flower shaped large ZnO particles. Therefore, as-synthesized composite is an economically and environmentally friendly photocatalyst. © 2012 Elsevier Ltd and Techna Group S.r.l.

Pant, HR, Park, CH, Pokharel, P, Tijing, LD, Lee, DS & Kim, CS 2013, 'ZnO micro-flowers assembled on reduced graphene sheets with high photocatalytic activity for removal of pollutants', Powder Technology, vol. 235, pp. 853-858.
View/Download from: Publisher's site
View description>>

In this paper, a simple and efficient strategy was developed for preparing flower-shaped ZnO doped reduced graphene oxide (RGO) composite material by simultaneous crystal growth (of ZnO) and reduction (of graphene oxide) using hydrothermal process. Several analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR spectroscopy, Raman spectroscopy, and photoluminescence spectroscopy have been used to characterize the resulting ZnO/RGO photocatalyst. Results showed that highly crystalline ZnO nano-flowers were effectively doped on the surface of RGO sheets. The unique properties of RGO sheets not only provide the decreased rate of electron–hole separation in ZnO but also prevent from the loss of photocatalyst during recovery due to the fixed attachment of ZnO NPs on the surface of high aspect ratio graphene sheets. Therefore, as-synthesized composite is an economically and environmentally friendly photocatalyst.

Pant, HR, Risal, P, Park, CH, Tijing, LD, Jeong, YJ & Kim, CS 2013, 'Core–shell structured electrospun biomimetic composite nanofibers of calcium lactate/nylon-6 for tissue engineering', Chemical Engineering Journal, vol. 221, pp. 90-98.
View/Download from: Publisher's site
View description>>

In this work, core-shell structured nylon-6/lactic acid (LA) nanofibers have been produced via single-spinneret electrospinning from the simple blending of LA and nylon-6 solution. The low evaporation rate and plasticizer property of LA was found to be responsible for the formation of point-bonded morphology whereas solvent degradation of nylon-6 with complex phase separation mechanism could give spider-wave-like architecture of the mat and core–shell structure of the composite fibers. The core–shell nanostructure and existence of LA on the shell layer of the fiber were confirmed by TEM and XPS analysis. These fibers were further treated with calcium base to convert surface LA into calcium lactate (CL) which could increase the biocompatibility of composite mat. The SBF incubation test not only confirmed the nucleation capacity of CL to accelerate the deposition of calcium compound on the surface of nanofibers but also facileated the formation of hollow calcium phosphate particles at biomimetic conditions. The adhesion, viability and proliferation properties of osteoblast cells on the composite nanofibers were analyzed by in vitro cell compatibility test. This study demonstrated the non-cytotoxic behavior and good proliferation capacity of calcium lactate/nylon-6 (CL/nylon-6) composite mat. Therefore, the novel nanofibrous composite mat may become a potential candidate for bone tissue engineering

Pant, HR, Risal, P, Park, CH, Tijing, LD, Jeong, YJ & Kim, CS 2013, 'Synthesis, characterization, and mineralization of polyamide-6/calcium lactate composite nanofibers for bone tissue engineering', Colloids and Surfaces B: Biointerfaces, vol. 102, pp. 152-157.
View/Download from: Publisher's site

Park, C-H, Kang, S-J, Tijing, LD, Pant, HR & Kim, CS 2013, 'Inductive heating of electrospun Fe2O3/polyurethane composite mat under high-frequency magnetic field', Ceramics International, vol. 39, no. 8, pp. 9785-9790.
View/Download from: Publisher's site

Park, CH, Kim, C-H, Pant, HR, Tijing, LD, Yu, MH, Kim, Y & Kim, CS 2013, 'An angled robotic dual-nozzle electrospinning set-up for preparing PU/PA6 composite fibers', Textile Research Journal, vol. 83, no. 3, pp. 311-320.
View/Download from: Publisher's site
View description>>

This paper presents the design and development of a robust electrospinning set-up for the processing of polymer composites at the nanoscale. A robotic-controlled movable dual-nozzle (keeping the rotating collector at a fixed position) set-up with two power supplies is presented for nanocomposite electrospinning. We studied the effect of different angles between two nozzles on the physicochemical properties of composite PU/PA6 electrospun mats obtained from this electrospining set-up. Scanning electron microscopy (SEM) images of the mats indicated that the diameter of the nanofibers and their evenness was affected by the angle between the nozzles. The effect of angle (between the nozzles) on the mechanical strength of the composite mats was also evaluated. The hybrid mat obtained from the dual- nozzle system was found to be mechanically stronger than the individual fibrous mat. Furthermore, the mechanical strength of the composite mat could be increased by decreasing the angle between the tips of the nozzles.

Park, C-H, Tijing, LD, Pant, HR, Kim, T-H, Amarjargal, A, Kim, HJ & Kim, CS 2013, 'Accelerated in vitro durability testing of nonvascular Nitinol stents based on the electrical potential sensing method', Applied Physics A, vol. 112, no. 4, pp. 919-926.
View/Download from: Publisher's site

Parvin, S, Hussain, FK & Hussain, OK 2013, 'Conjoint trust assessment for secure communication in cognitive radio networks', MATHEMATICAL AND COMPUTER MODELLING, vol. 58, no. 5-6, pp. 1340-1350.
View/Download from: Publisher's site
View description>>

With the rapid development of wireless communication, the growth of Cognitive Radio (CR) is increasing day by day. Because CR is flexible and operates on the wireless network, there are more security threats to CR technology than to the traditional radio environment. In addition, there is no comprehensive framework for achieving security in Cognitive Radio Networks (CRNs), and the role of trust for achieving security in CRNs has not been explored previously. Security vulnerability in cognitive radio technology is unavoidable due to the intrinsic nature of the technology, so it is critical to ensure system security in CRNs. The issue of secure communication in CRNs thus becomes more important than it is in conventional wireless networks. In this paper, we propose a conjoint trust assessment approach (combining trust assessment from the Primary User Network and the Secondary User Network) in a CRN to solve the security threats brought about by untrustworthy entities, such as selfish, malicious, and faultless nodes, and to ensure secure spectrum sharing in CRNs. A numerical analysis shows the feasibility of our proposed approach.

Parvin, S, Hussain, FK, Hussain, OK, Thein, T & Park, JS 2013, 'Multi-cyber framework for availability enhancement of cyber physical systems', COMPUTING, vol. 95, no. 10-11, pp. 927-948.
View/Download from: Publisher's site
View description>>

With the rapid growth of wireless communication, the deployment of cyber-physical system (CPS) is increasing day by day. As a cyber physical system involves a tight coupling between the physical and computational components, it is critical to ensure that the system, apart from being secure, is available for both the cyber and physical processes. Traditional methods have generally been employed to defend an infrastructure system against physical threats. However, this does not guarantee that the availability of the system will always be high. In this paper, we propose a multi-cyber (computational unit) framework to improve the availability of CPS based on Markov model. We evaluate the effectiveness of our proposed framework in terms of availability, downtime, downtime cost and reliability of the CPS framework. © 2012 Her Majesty the Queen in Right of Australia.

Paul, G, Kwok, N & Liu, D 2013, 'A novel surface segmentation approach for robotic manipulator-based maintenance operation planning', AUTOMATION IN CONSTRUCTION, vol. 29, pp. 136-147.
View/Download from: Publisher's site
View description>>

This paper presents a novel approach to segmenting a three-dimensional surface map by considering the task requirements and the movements of an industrial robot manipulator. Maintenance operations, such as abrasive blasting, that are performed by a field robot manipulator can be made more efficient by exploiting surface segmentation. The approach in this paper utilises an aggregate of multiple connectivity graphs, with graph edges defined by task constraints, and graph vertices that correspond to small, maintenance-specific target surfaces, known as Scale-Like Discs (SLDs). The task constraints for maintenance operations are based on the characteristics of neighbouring SLDs. The combined connectivity graphs are analysed to find clusters of vertices, thus segmenting the surface map into groups of related SLDs. Experiments conducted in three typical bridge maintenance environments have shown that the approach can reduce garnet usage by 10%-40% and reduce the manipulator joint movements by up to 35%. © 2012 Elsevier B.V. All rights reserved.

Peng, P, Blamires, SJ, Agnarsson, I, Lin, H-C & Tso, I-M 2013, 'A Color-Mediated Mutualism between Two Arthropod Predators', Current Biology, vol. 23, no. 2, pp. 172-176.
View/Download from: Publisher's site

Peng, S, Wang, G & Yu, S 2013, 'Modeling the dynamics of worm propagation using two-dimensional cellular automata in smartphones', Journal of Computer and System Sciences, vol. 79, no. 5, pp. 586-595.
View/Download from: Publisher's site

Pham, HN, Fujita, H, Ozaki, K & Uchida, N 2013, 'Dynamic Analysis and Control for Resonant Currents in a Zone-Control Induction Heating System', IEEE Transactions on Power Electronics, vol. 28, no. 3, pp. 1297-1307.
View/Download from: Publisher's site
View description>>

This paper presents a quick and accurate power control method for a zone-control induction heating (ZCIH) system consisting of multiple working coils connected to multiple H-bridge inverters. A uniform temperature profile can be achieved by adjusting the current in each working coil. This paper proposes a new current control method based on a circuit model using real and imaginary (Re-Im) current/voltage components. The method detects and controls the Re-Im components of the coil current instead of the current amplitude and phase angle. As a result, the proposed method enables the inverters to control the coil current independently from the others. Experiments using a six-coil ZCIH system are conducted to verify the validity of the proposed method. The experimental results confirmed that the proposed method makes it possible to improve the stability of the current feedback control, not only in steady states but also in transient states.

Pham, TT, Nguyen, HH & Tuan, HD 2013, 'Optimization of Hierarchical Modulation for Decode-and-Forward Wireless Relay Networks', IEEE Transactions on Vehicular Technology, vol. 62, no. 9, pp. 4484-4493.
View/Download from: Publisher's site
View description>>

This paper presents two designs of optimal nonuniformed constellations for decode-and-forward wireless relay networks with an orthogonal space-time block code (STBC). The first design is concerned with the unequal error protection issue, in which two dat

Phan, AH, Tuan, HD, Kha, HH & Nguyen, HH 2013, 'Iterative D.C. Optimization of Precoding in Wireless MIMO Relaying', IEEE Transactions on Wireless Communications, vol. 12, no. 4, pp. 1617-1627.
View/Download from: Publisher's site
View description>>

Optimizations of precoding matrices in precode-and-forward (PF) MIMO relaying are nonconvex programs in precoding matrix variables. The semidefinite relaxation (SDR) technique, which relaxes the concerned nonconvex quadratic constraints by (convex) semi-definite ones, can locate the optimal solutions, provided that the numbers of relaying antennas and users are very small. The computational complexity of the SDR grows explosively even with a very moderate increase in the numbers of relaying antennas and/or users, making the existing semidefinite programming (SDP) solvers incapable. In this paper, much more efficient problem formulations of precoding matrix design that exploit the spectral matrix optimization are developed. Such formulations have a low dimensionality and are computationally-tractable nonconvex matrix programs. Furthermore, by exploiting their partial convex structures in the d.c. (difference of two convex functions) framework, new effective iterative solutions are obtained. Extensive simulation results are presented to support the computational advantage of the proposed approach and show that the proposed approach can effectively handle all three considered optimization problems of precoding matrices in MIMO PF relaying, while the SDR approach either is computationally impractical or fails.

Phuntsho, S, Hong, S, Elimelech, M & Shon, HK 2013, 'Forward osmosis desalination of brackish groundwater: Meeting water quality requirements for fertigation by integrating nanofiltration', JOURNAL OF MEMBRANE SCIENCE, vol. 436, no. 1, pp. 1-15.
View/Download from: Publisher's site
View description>>

The concept of fertiliser drawn forward osmosis (FDFO) desalination lies in the premise that fertilisers that serve as draw solutions (DS) add value to the FDFO product water for fertigation. However, because FDFO desalination is concentration based, the process cannot continue beyond the concentration equilibrium, one of the major limitations of the forward osmosis (FO) process. This results in final FDFO product water that, unless subjected to substantial dilution with fresh water, exceeds the acceptable nutrient concentrations for direct fertigation. In this study, nanofiltration (NF) has been assessed as an integrated process to FDFO desalination, either as a pre-treatment or post-treatment, to reduce the nutrient concentrations in the final product water and thereby allow direct use of the product water for fertigation without further dilution. NF as pre-treatment or post-treatment was found effective in reducing the nutrient concentrations using brackish groundwater (BGW) sources with relatively low total dissolved solid (TDS). However, when using higher TDS BGW sources, the product water still required further dilution or post-treatment before fertigation. NF as post-treatment was found to be more advantageous both in terms of reduced nutrient concentrations in the final product water and energy consumption. © 2013 Elsevier B.V.

Phuntsho, S, Kim, J, Lotfi, F & Shon, HK 2013, 'MONO/DI-ammonium phosphate fertilizers as draw solutions for forward osmosis desalination', IDA Journal of Desalination and Water Reuse, vol. 5, no. 1, pp. 34-39.
View/Download from: Publisher's site
View description>>

Forward osmosis (FO) can be suitably used to desalinate water for irrigation using fertilizer as draw agent due to the desalinated water containing diluted draw solution. Mono-ammonium hydrogen phosphate (MAP) and di-ammonium hydrogen phosphate (DAP) are the important group of the most concentrated soluble fertilizer materials containing both N and P, essential fertilizer elements needed by the plants. The comparative assessment of these two fertilizers as draw solution (DS) for FO desalination was conducted. The results indicate that both MAP and DAP can be used as a DS for FO desalination and for direct fertigation although concentration polarization significantly affected the water flux. MAP performed slightly better in terms of pure water flux. However, the performance ratio of DAP was comparable to MAP when saline feed water was used. Furthermore, DAP was seen as a better DS candidate for desalination and fertigation due to significantly lower reverse solute flux.

Phuntsho, S, Sahebi, S, Majeed, T, Lotfi, F, Kim, JE & Shon, HK 2013, 'Assessing the major factors affecting the performances of forward osmosis and its implications on the desalination process', CHEMICAL ENGINEERING JOURNAL, vol. 231, pp. 484-496.
View/Download from: Publisher's site
View description>>

This study evaluates the influence of some of the major factors affecting the performances of forward osmosis (FO) desalination and assessed their potential implications on the overall process. The major factors assessed include membrane properties, draw solution (DS) properties, feed solution (FS) properties and the operating conditions. The influence of the membrane properties was evaluated using three types of membranes and in doing so we have also introduced one newly synthesized proprietary thin film composite FO (TFC-FO) membrane. The performances of TFC-FO membrane in terms of water flux and reverse solute flux were significantly higher than the commercial cellulose triacetate FO membrane and TFC reverse osmosis membrane in FO process. Although adequate osmotic pressure of DS is desirable for FO process, the influence of DS osmotic pressure was less significant at higher DS osmotic pressure and therefore selecting an optimum initial osmotic pressure is essential for FO process to minimize pumping energy. A critical DS concentration has been hypothesized to minimize the implications of DS concentrations on the capital and operational cost of the FO desalination plant. Total dissolved solids (TDS) of the FS play a significant role in the performance of FO process however the influence of feed TDS was less significant for feed higher than 20,000. mg/L indicating that FO has a promising potential for use with high TDS feed water. Although, water flux decreased, the reverse solute flux (RSF) and specific RSF also decreased slightly at higher feed TDS. For operating parameters, the influence of crossflow velocity and the crossflow direction was also investigated. © 2013 Elsevier B.V.

Pileggi, S & Amor, R 2013, 'Addressing Semantic Geographic Information Systems', Future Internet, vol. 5, no. 4, pp. 585-590.
View/Download from: Publisher's site
View description>>

The progressive consolidation of information technologies on a large scale has been facilitating and progressively increasing the production, collection, and diffusion of geographic data, as well as facilitating the integration of a large amount of external information into geographic information systems (GIS). Traditional GIS is transforming into a consolidated information infrastructure. This consolidated infrastructure is affecting more and more aspects of internet computing and services. Most popular systems (such as social networks, GPS, and decision support systems) involve complex GIS and significant amounts of information. As a web service, GIS is affected by exactly the same problems that affect the web as a whole. Therefore, next generation GIS solutions have to address further methodological and data engineering challenges in order to accommodate new applications’ extended requirements (in terms of scale, interoperability, and complexity). The conceptual and semantic modeling of GIS, as well as the integration of semantics into current GIS, provide highly expressive environments that are capable of meeting the needs and requirements of a wide range of applications. [...]

Pirasteh, S, Pradhan, B, Safari, HO & Ramli, MF 2013, 'Coupling of DEM and remote-sensing-based approaches for semi-automated detection of regional geostructural features in Zagros mountain, Iran', Arabian Journal of Geosciences, vol. 6, no. 1, pp. 91-99.
View/Download from: Publisher's site

Pourghasemi, H, Pradhan, B, Gokceoglu, C & Moezzi, KD 2013, 'A comparative assessment of prediction capabilities of Dempster–Shafer and Weights-of-evidence models in landslide susceptibility mapping using GIS', Geomatics, Natural Hazards and Risk, vol. 4, no. 2, pp. 93-118.
View/Download from: Publisher's site

POURGHASEMI, HR, JIRANDEH, AG, PRADHAN, B, XU, C & GOKCEOGLU, C 2013, 'Landslide susceptibility mapping using support vector machine and GIS at the Golestan Province, Iran', Journal of Earth System Science, vol. 122, no. 2, pp. 349-369.
View/Download from: Publisher's site

Pourghasemi, HR, Jirandeh, AG, Pradhan, B, Xu, C & Gokceoglu, C 2013, 'Landslide susceptibility mapping using support vector machine and GIS at the Golestan Province, Iran', Journal of Earth System Science, vol. 122, no. 2, pp. 349-369.

Pourghasemi, HR, Pradhan, B, Gokceoglu, C, Mohammadi, M & Moradi, HR 2013, 'Application of weights-of-evidence and certainty factor models and their comparison in landslide susceptibility mapping at Haraz watershed, Iran', Arabian Journal of Geosciences, vol. 6, no. 7, pp. 2351-2365.
View/Download from: Publisher's site

Pourghasemi, HR, Pradhan, B, Moradi, HR, Mohammady, M & Bednarik, M 2013, 'A Comparative Assessment Between Index of Entropy, Logistic Regression, and Frequency Ratio Models for Landslide Susceptibility Mapping in Iran'.

Power, R, Reid, JP, Anand, S, McGloin, D, Almohammedi, A, Mistry, NS & Hudson, AJ 2013, 'Correction to “Observation of the Binary Coalescence and Equilibration of Micrometer-Sized Droplets of Aqueous Aerosol in a Single-Beam Gradient-Force Optical Trap”', The Journal of Physical Chemistry A, vol. 117, no. 2, pp. 524-524.
View/Download from: Publisher's site

Pradhan, B 2013, 'A comparative study on the predictive ability of the decision tree, support vector machine and neuro-fuzzy models in landslide susceptibility mapping using GIS', Computers & Geosciences, vol. 51, pp. 350-365.
View/Download from: Publisher's site

Pradhan, B, Lee, S & Buchroithner, MF 2013, 'Pradhan et al. 2010-CEUS-FullCitation'.

Pradhan, B, Mansor, S, Abdul-Hadi, A & Tan, CK 2013, 'Seasonal variability of chlorophyll-a and oceanographic conditions in Sabah waters in relation to Asian monsoona remote sensing study', Environmental Monitoring and Assessment, vol. 185, no. 2013, p. 3977.

Pradhan, B, Mansor, S, Al-shalabi, M, Althuwaynee, OF & Billa, L 2013, 'Manifestation of Remote Sensing Data in Modeling Urban Sprawl Using the SLEUTH Model and Brute Force Calibration: A Case Study of Sanaa City, Yemen.', Journal of the Indian Society of Remote Sensing, vol. 41, no. 2, pp. 405-416.

Pradhan, B, Tehrany, MS & Jebur, MN 2013, 'Spatial prediction of flood susceptible areas using rule based decision tree (DT) and ensemble bivariate and multivariate statistical models in GIS', Journal of Hydrology, vol. 504, no. 2013, pp. 69-79.

Pugh, E, Thommandram, A, Ng, E, Mcgregor, C, Eklund, M, Narang, I, Belik, J & James, A 2013, 'Classifying neonatal spells using real-time temporal analysis of physiological data streams—algorithm development', Journal of Critical Care, vol. 28, no. 1, pp. e9-e9.
View/Download from: Publisher's site

Pugh, JE, Thommandram, A, McGregor, C, Eklund, M & James, A 2013, 'Classifying neonatal spells using real-time temporal analysis of physiological data streams—verification tests', Journal of Critical Care, vol. 28, no. 6, pp. e40-e41.
View/Download from: Publisher's site

Qadir, A, Mokhtar, M, Khalilpour, R, Milani, D, Vassallo, A, Chiesa, M & Abbas, A 2013, 'Potential for solar-assisted post-combustion carbon capture in Australia', APPLIED ENERGY, vol. 111, no. C, pp. 175-185.
View/Download from: Publisher's site
View description>>

A techno-economic analysis has been performed for a coal-fired power plant retrofitted with Solvent-based Post-combustion Carbon Capture (PCC) technology which is partially supplied with thermal energy by solar thermal collectors. The plant is compared with a generic PCC plant where all the thermal energy is provided by steam bled from the steam cycle. The individual merits of a suite of solar collector technologies which includes Flat Plate Collectors (FPCs), Compound Parabolic Collectors (CPCs), Linear Fresnel Collectors (LFCs), Evacuated Tube Collectors (ETCs) and Parabolic Trough Collectors (PTCs) to supply thermal energy for the PCC plant have been studied. The plant has been simulated for three different locations in Australia: Sydney, Townsville and Melbourne. The overall system consists of three subsystems: power plant, PCC plant and solar collector field. A base case scenario is studied in which there is no heat integration between the three subsystems and is compared to a system with heat integration. Additionally incentives such as Renewable Energy Certificates (RECs), carbon tax/credits and government subsidies have been added to the economic model and a sensitivity analysis performed for each scenario of incentives for all five solar collector technologies at the three locations. The ETC case performs best amongst solar collectors when the three subsystems have heat integration while PTCs perform best in the case with no heat integration. The best location for the solar-assisted PCC (SPCC) plant is Townsville. It was found that the addition of the solar field reduces the carbon tax in order to make carbon capture and storage viable in comparison with a conventional non-capturing coal fired plant.

Qi Mao & Tsang, IW-H 2013, 'Efficient Multitemplate Learning for Structured Prediction', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 2, pp. 248-261.
View/Download from: Publisher's site
View description>>

Conditional random fields (CRF) and structural support vector machines (structural SVM) are two state-of-the-art methods for structured prediction that captures the interdependencies among output variables. The success of these methods is attributed to the fact that their discriminative models are able to account for overlapping features on all input observations. These features are usually generated by applying a given set of templates on labeled data, but improper templates may lead to degraded performance. To alleviate this issue, in this paper we propose a novel multiple template learning paradigm to learn structured prediction and the importance of each template simultaneously, so that hundreds of arbitrary templates could be added into the learning model without caution. This paradigm can be formulated as a special multiple kernel learning problem with an exponential number of constraints. Then we introduce an efficient cutting-plane algorithm to solve this problem in the primal and present its convergence. We also evaluate the proposed learning paradigm on two widely studied structured prediction tasks, i.e., sequence labeling and dependency parsing. Extensive experimental results show that the proposed method outperforms CRFs and structural SVMs because of exploiting the importance of each template. Complexity analysis and empirical results also show that the proposed method is more efficient than Online multikernel learning on very sparse and high-dimensional data. We further extend this paradigm for structured prediction using generalized p-block norm regularization with p >; 1, and experiments show competitive performances when p ? [1,2)

Qi Mao, Tsang, IW-H & Shenghua Gao 2013, 'Objective-Guided Image Annotation', IEEE Transactions on Image Processing, vol. 22, no. 4, pp. 1585-1597.
View/Download from: Publisher's site
View description>>

Automatic image annotation, which is usually formulated as a multi-label classification problem, is one of the major tools used to enhance the semantic understanding of web images. Many multimedia applications (e.g., tag-based image retrieval) can greatly benefit from image annotation. However, the insufficient performance of image annotation methods prevents these applications from being practical. On the other hand, specific measures are usually designed to evaluate how well one annotation method performs for a specific objective or application, but most image annotation methods do not consider optimization of these measures, so that they are inevitably trapped into suboptimal performance of these objective-specific measures. To address this issue, we first summarize a variety of objective-guided performance measures under a unified representation. Our analysis reveals that macro-averaging measures are very sensitive to infrequent keywords, and hamming measure is easily affected by skewed distributions. We then propose a unified multi-label learning framework, which directly optimizes a variety of objective-specific measures of multi-label learning tasks. Specifically, we first present a multilayer hierarchical structure of learning hypotheses for multi-label problems based on which a variety of loss functions with respect to objective-guided measures are defined

Qin, P-Y, Guo, YJ & Ding, C 2013, 'A Beam Switching Quasi-Yagi Dipole Antenna', IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 61, no. 10, pp. 4891-4899.
View/Download from: Publisher's site
View description>>

A high gain beam switching pattern reconfigurable quasi-Yagi dipole antenna is presented for wireless local area network (WLAN) systems at 5.2 GHz. The antenna consists of a microstrip-to-coplanar stripline (CPS) balun, the length of which can be controlled by using PIN diodes. The change of the length of the balun allows the currents on the two arms of the dipole to have different phase differences, thereby making the antenna operate at three states with the E-plane maximum beam direction towards 20°, -20°, and 0°, respectively. In order to validate the design method, a prototype of the proposed antenna with a practical biasing network was fabricated and measured. Measured results on the reflection coefficients, radiation patterns, and realized gains for three operating states are provided, which agree well with the numerical simulations. © 1963-2012 IEEE.

Qin, P-Y, Guo, YJ & Ding, C 2013, 'A Dual-Band Polarization Reconfigurable Antenna for WLAN Systems', IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 61, no. 11, pp. 5706-5713.
View/Download from: Publisher's site
View description>>

A new microstrip dual-band polarization reconfigurable antenna is presented for wireless local area network (WLAN) systems operating at 2.4 and 5.8 GHz. The antenna consists of a square microstrip patch that is aperture coupled to a microstrip line located along the diagonal line of the patch. The dual-band operation is realized by employing the TM10 and TM30 modes of the patch antenna. Four shorting posts are inserted into the patch to adjust the frequency ratio of the two modes. The center of each edge of the patch is connected to ground via a PIN diode for polarization switching. By switching between the different states of PIN diodes, the proposed antenna can radiate either horizontal, vertical, or 45° linear polarization in the two frequency bands. Measured results on reflection coefficients and radiation patterns agree well with numerical simulations. © 1963-2012 IEEE.

Qu, Z, Wang, J, Xu, M & Lu, H 2013, 'Context-Aware Video Retargeting via Graph Model', IEEE Transactions on Multimedia, vol. 15, no. 7, pp. 1677-1687.
View/Download from: Publisher's site
View description>>

Video retargeting is a crowded but challenging research area. In order to maximally comfort the viewers' watching experience, the most challenging issue is how to retain the spatial shape of important objects while ensure temporal smoothness and coherence. Existing retargeting techniques deal with these spatialoral requirements individually, which preserve the spatial geometry and temporal coherence for each region. However, the spatialoral property of the video content should be context-relevant, i.e., the regions belonging to the same object are supposed to undergo uniform spatialoral transformation. Regardless of the contextual information, the divide-and-rule strategy of existing techniques usually incurs various spatialoral artifacts. In order to achieve satisfactory spatialoral coherent video retargeting, in this paper, a novel context-aware solution is proposed via graph model. First, we employ a grid-based warping framework to preserve the spatial structure and temporal motion trend at the unit of grid cell. Second, we propose a graph-based motion layer partition algorithm to estimate motions of different regions, which simultaneously provides the evaluation of contextual relationship between grid cells while estimating the motions of regions. Third, complementing the salience-based spatialoral information preservation, two novel context constraints are encoded for encouraging the grid cells of the same object to undergo uniform spatial and temporal transformation, respectively. Finally, we formulate the objective function as a quadratic programming problem. Our method achieves a satisfactory spatialoral coherence while maximally avoiding the influence of artifacts. In addition, the grid-cell-wise motion estimation could be calculated every few frames, which obviously improves the speed. Experimental results and comparisons with state-of-the-art methods demonstrate the effectiveness and efficiency of our approach. © 2013 IEEE.

Qumer Gill, A & Bunker, D 2013, 'Towards the development of a cloud‐based communication technologies assessment tool', VINE, vol. 43, no. 1, pp. 57-77.
View/Download from: Publisher's site
View description>>

PurposeIn distributed adaptive development environments (DADE), a primary concern is that of human communication and knowledge sharing among developers. Developers' task performance will be enhanced when their task needs are aligned with the communication media or technology capabilities of the development environment. What are actual communication needs of developers; and how do we enable developers to self‐assess and select appropriate communication technology for their tasks in the DADE. The purpose of this paper is to investigate and present research based on the developers' needs for communication technologies in the context of DADE.Design/methodology/approachThe authors applied an exploratory qualitative research method to investigate, analyze and integrate survey information sourced from 40 developers, to identify their communication technology needs and, based on this information, the authors then set up a practical tool – communication technologies assessment tool (CTAT) to assist developers in the self‐assessment and selection of appropriate communication technologies for their DADE; and also to share this assessment knowledge with other developers or teams located in various DADEs.FindingsThe results of this research suggest that an effective CTAT should be an integral part of the DADE; and a DADE should have a “single source of information” in order to avoid possible communication inconsistencies and ambiguities.Originality/valueThe study results and the resultant CTAT may help developers to make...

Radmanesh, N & Burnett, IS 2013, 'Generation of Isolated Wideband Sound Fields Using a Combined Two-stage Lasso-LS Algorithm', IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, vol. 21, no. 2, pp. 378-387.
View/Download from: Publisher's site

Rahman, SMA, Masjuki, HH, Kalam, MA, Abedin, MJ, Sanjid, A & Sajjad, H 2013, 'Impact of idling on fuel consumption and exhaust emissions and available idle-reduction technologies for diesel vehicles – A review', Energy Conversion and Management, vol. 74, pp. 171-182.
View/Download from: Publisher's site

Rahman, SMA, Masjuki, HH, Kalam, MA, Abedin, MJ, Sanjid, A & Sajjad, H 2013, 'Production of palm and Calophyllum inophyllum based biodiesel and investigation of blend performance and exhaust emission in an unmodified diesel engine at high idling conditions', Energy Conversion and Management, vol. 76, pp. 362-367.
View/Download from: Publisher's site

Raj Pant, H, Pant, B, Joo Kim, H, Amarjargal, A, Hee Park, C, Tijing, LD, Kyo Kim, E & Sang Kim, C 2013, 'A green and facile one-pot synthesis of Ag–ZnO/RGO nanocomposite with effective photocatalytic activity for removal of organic pollutants', Ceramics International, vol. 39, no. 5, pp. 5083-5091.
View/Download from: Publisher's site
View description>>

In this study, Ag-ZnO/reduced graphene oxide (Ag-ZnO/RGO) composite was synthesized by a green and facile one-step hydrothermal process. Aqueous suspension containing Ag and ZnO precursors with graphene oxide (GO) sheets was heated at 140 °C for 2 h. The morphology and structure of as-synthesized particles were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, and Photoluminescence (PL) spectroscopy which revealed the formation of composite of metal, metal oxide and RGO. It was observed that the presence of Ag precursor and GO sheets in the hydrothermal solution could sufficiently decrease the size of ZnO flowers. The hybrid nanostructure, with unique morphology, obtained from this convenient method (low temperature, less time, and less number of reagents) was found to have good photocatalytic and antibacterial activity. The perfect recovery of catalyst after reaction and its unchanged efficiency for cyclic use showed that it will be an economically and environmentally friendly photocatalyst. © 2012 Elsevier Ltd and Techna Group S.r.l.

Ran, NHM, Yuliati, L, Lee, SL, Mahlia, TMI & Nur, H 2013, 'Liquid–gas boundary catalysis by using gold/polystyrene-coated hollow titania', Journal of Colloid and Interface Science, vol. 394, pp. 490-497.
View/Download from: Publisher's site

Ranga, Y, Matekovits, L, Weily, AR & Esselle, KP 2013, 'A CONSTANT GAIN ULTRA-WIDEBAND ANTENNA WITH A MULTI-LAYER FREQUENCY SELECTIVE SURFACE', Progress In Electromagnetics Research Letters, vol. 38, pp. 119-125.
View/Download from: Publisher's site
View description>>

An ultra-wideband (UWB) antenna with a novel multi-layer frequency selective surface (FSS) reflector is presented. A significant enhancement in the gain has been achieved in a low profile design while maintaining the excellent impedance bandwidth of the UWB antenna. The average peak gain of the antenna has been increased from 4dBi to 9.3 dBi as a consequence of the use of the FSS reflector. More importantly the gain variation within the frequency range from 3 GHz to 15 GHz is only ±0.5 dB. This is a significant improvement from ±2dB gain variation of the UWB slot antenna without the reflector. This optimized FSS reflector provides the flexibility of mounting a planar antenna close to conducting bodies, including screens and cases.

Ranga, Y, Matekovits, L, Weily, AR & Esselle, KP 2013, 'A low‐profile dual‐layer ultra‐wideband frequency selective surface reflector', Microwave and Optical Technology Letters, vol. 55, no. 6, pp. 1223-1227.
View/Download from: Publisher's site
View description>>

AbstractAn ultra‐wideband (UWB), dual‐layer frequency selective surface (FSS) is presented.This compact low‐profile FSS has been designed as a reflector for UWB antennas. It can be inserted between a planar UWB antenna and a nearby parallel conducting surface such as a circuit board, screen, or a metal case, to isolate them and to prevent antenna impedance mismatch otherwise caused by the conductor. The measured transmission coefficient magnitude of the FSS is less than −10 dB over a 133% bandwidth and its reflection phase is appropriate for this and other similar reflector applications, over an UWB. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1223–1227, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27583

Rashid, U, Tuan, HD & Nguyen, HH 2013, 'Relay Beamforming Designs in Multi-User Wireless Relay Networks Based on Throughput Maximin Optimization', IEEE Transactions on Communications, vol. 61, no. 5, pp. 1739-1749.
View/Download from: Publisher's site
View description>>

Beamforming design for multi-user wireless relay networks under the criterion of maximin information throughput is an important but also very hard optimization problem due to its nonconvex nature. The existing approach to reformulate the design as a matrix rank-one constrained optimization problem is highly inefficient. This paper exploits the d.c. (difference of two convex functions) structure of the objective function and the convex structure of the constraints in such a global optimization problem to develop efficient iterative algorithms of very low complexity to find the solutions. Both cases of concurrent and orthogonal transmissions from sources to relays are considered. Numerical results indicate that the proposed algorithms provide solutions that are very close to the upper bound on the solution of the non-orthogonal source transmissions case and are almost equal to the optimal solution of the orthogonal source transmissions case. This demonstrates the ability of the developed algorithms to locate approximations close to the global optimal solutions in a few iterations. Moreover, the proposed methods are superior to other methods in both performance and computation complexity.

Regmi, AD, Yoshida, K, Nagata, H, Pradhan, AMS, Pradhan, B & Pourghasemi, HR 2013, 'The relationship between geology and rock weathering on the rock instability along Mugling–Narayanghat road corridor, Central Nepal Himalaya', Natural Hazards, vol. 66, no. 2, pp. 501-532.
View/Download from: Publisher's site

Rehman, ZU, Hussain, FK & Hussain, OK 2013, 'Frequency-based similarity measure for multimedia recommender systems', MULTIMEDIA SYSTEMS, vol. 19, no. 2, pp. 95-102.
View/Download from: Publisher's site
View description>>

Personalized recommendation has become a pivotal aspect of online marketing and e-commerce as a means of overcoming the information overload problem. There are several recommendation techniques but collaborative recommendation is the most effective and widely used technique. It relies on either item-based or user-based nearest neighborhood algorithms which utilize some kind of similarity measure to assess the similarity between different users or items for generating the recommendations. In this paper, we present a new similarity measure which is based on rating frequency and compare its performance with the current most commonly used similarity measures. The applicability and use of this similarity measure from the perspective of multimedia content recommendation is presented and discussed

Reidsema, CA, Hadgraft, R, Cameron, I & King, R 2013, 'Change strategies for educational transformation', Australasian Journal of Engineering Education, vol. 19, no. 2, pp. 101-108.
View/Download from: Publisher's site
View description>>

The authors present a position paper suggesting that while there is evidence for change within engineering curricula towards best practice, there are significant barriers primarily at the operational level, which bring into question the likelihood of more widespread adoption of hard won gains. It is argued that transformational change is required which (i) alters the culture of the institution by changing select underlying assumptions and institutional behaviours, processes, and products; (ii) is deep and pervasive, affecting the whole institution; (iii) is intentional; and (iv) occurs over time (Kezar & Eckel, 2002). It is also argued that change leadership of this nature must be distributed, not solely laid at the feet of Deans and Vice Chancellors. A strategy for change is presented based on observations and evidence from the Australian Learning and Teaching Council (ALTC) project "Design based curriculum reform within engineering education" and the recently completed ALTC Discipline Scholars' Survey of Engineering Academics grounded in the research for transformational change within businesses, universities and teaching and learning. This model for change proposes the development of a network of change agents built on a brokerage model to improve best practice and leadership capacity through systematically and directly engaging with the strategic/tactical and operational levels of engineering faculties

Remenyi, J, van den Bosch, MWM, Palygin, O, Mistry, RB, McKenzie, C, Macdonald, A, Hutvagner, G, Arthur, JSC, Frenguelli, BG & Pankratov, Y 2013, 'miR-132/212 Knockout Mice Reveal Roles for These miRNAs in Regulating Cortical Synaptic Transmission and Plasticity', PLoS ONE, vol. 8, no. 4, pp. e62509-e62509.
View/Download from: Publisher's site
View description>>

miR-132 and miR-212 are two closely related miRNAs encoded in the same intron of a small non-coding gene, which have been suggested to play roles in both immune and neuronal function. We describe here the generation and initial characterisation of a miR-132/212 double knockout mouse. These mice were viable and fertile with no overt adverse phenotype. Analysis of innate immune responses, including TLR-induced cytokine production and IFNβ induction in response to viral infection of primary fibroblasts did not reveal any phenotype in the knockouts. In contrast, the loss of miR-132 and miR-212, while not overtly affecting neuronal morphology, did affect synaptic function. In both hippocampal and neocortical slices miR-132/212 knockout reduced basal synaptic transmission, without affecting paired-pulse facilitation. Hippocampal long-term potentiation (LTP) induced by tetanic stimulation was not affected by miR-132/212 deletion, whilst theta burst LTP was enhanced. In contrast, neocortical theta burst-induced LTP was inhibited by loss of miR-132/212. Together these results indicate that miR-132 and/or miR-212 play a significant role in synaptic function, possibly by regulating the number of postsynaptic AMPA receptors under basal conditions and during activity-dependent synaptic plasticity. © 2013 Remenyi et al.

Rismanchi, B, Saidur, R, Masjuki, HH & Mahlia, TMI 2013, 'Modeling and simulation to determine the potential energy savings by implementing cold thermal energy storage system in office buildings', Energy Conversion and Management, vol. 75, pp. 152-161.
View/Download from: Publisher's site

Rizwanul Fattah, IM, Masjuki, HH, Liaquat, AM, Ramli, R, Kalam, MA & Riazuddin, VN 2013, 'Impact of various biodiesel fuels obtained from edible and non-edible oils on engine exhaust gas and noise emissions', Renewable and Sustainable Energy Reviews, vol. 18, pp. 552-567.
View/Download from: Publisher's site

Rocha, CGD & Formoso, CT 2013, 'Configuring Product Variants in Customisation Strategies for House-Building', Open House International, vol. 38, no. 3, pp. 48-56.
View/Download from: Publisher's site
View description>>

Mass customisation involves the provision of product variants that fulfil clients' specific requirements seeking to increase product values. The configuration process involves a chain of decisions, which needs to be undertaken to create product variants that meet each client specific requirements. In this paper, this chain of decisions is conceptualized in terms of customisation units. Each customisation unit encompasses a customisable attribute (e.g. size, colour) and the range of items offered for this attribute. A design science approach was adopted in this investigation. In this approach, knowledge is produced by creating and testing a solution, which provides practical and theoretical contributions. A method is proposed to analyse and improve the configuration process by conceptualizing this process as a tree diagram. The proposed method is used to analyse the configuration process developed by organisations of the house-building sector based in the U.K. and Brazil: a manufacturer of floor tiles, contractors, and registered providers. These analyses enabled a comparison of the distinct configuration processes adopted. In addition, problems associated to the configuration process (such as burden of choice) and opportunities for improvements were also identified. Finally, alternative chains of decision were also devised based on these analyses to address the problems identified.

Rofael, R & Kang, K 2013, 'Use of Micro Blogging Services in Mass Emergency Situations in Different Countries', Journal of Internet Social Networking and Virtual Communities, vol. 2012, no. ID 748268, pp. 1-10.
View/Download from: Publisher's site
View description>>

This paper presents how people use the Micro blogging (MB) services in emergency situations, and proposing a methodology for investigating if and how cultural differences affect communications broadcasted by people who were on the ground during emergency events. This paper addresses issues of the attributes in micro-blog posts generated during different emergency situations, and the recent political incidents in Syria, Libya, and Egypt are examined, analyzed, and studied in depth detail. The current investigation, approach and methodology were described. The method will help to build for the future awareness detection in social networks. MB services through Social Networking (SN) sites by people in different countries are a common communication channel.

Roohani-Esfahani, S-I, Chen, Y, Shi, J & Zreiqat, H 2013, 'Fabrication and characterization of a new, strong and bioactive ceramic scaffold for bone regeneration', Materials Letters, vol. 107, pp. 378-381.
View/Download from: Publisher's site

Roohani-Esfahani, SI, Dunstan, CR, Li, JJ, Lu, Z, Davies, B, Pearce, S, Field, J, Williams, R & Zreiqat, H 2013, 'Unique microstructural design of ceramic scaffolds for bone regeneration under load', Acta Biomaterialia, vol. 9, no. 6, pp. 7014-7024.
View/Download from: Publisher's site
View description>>

During the past two decades, research on ceramic scaffolds for bone regeneration has progressed rapidly; however, currently available porous scaffolds remain unsuitable for load-bearing applications. The key to success is to apply microstructural design strategies to develop ceramic scaffolds with mechanical properties approaching those of bone. Here we report on the development of a unique microstructurally designed ceramic scaffold, strontium-hardystonite-gahnite (Sr-HT-gahnite), with 85% porosity, 500μm pore size, a competitive compressive strength of 4.1±0.3MPa and a compressive modulus of 170±20MPa. The in vitro biocompatibility of the scaffolds was studied using primary human bone-derived cells. The ability of Sr-HT-gahnite scaffolds to repair critical-sized bone defects was also investigated in a rabbit radius under normal load, with β-tricalcium phosphate/hydroxyapatite scaffolds used in the control group. Studies with primary human osteoblast cultures confirmed the bioactivity of these scaffolds, and regeneration of rabbit radial critical defects demonstrated that this material induces new bone defect bridging, with clear evidence of regeneration of original radial architecture and bone marrow environment.

Roy, NK, Pota, HR & Hossain, MJ 2013, 'Reactive power management of distribution networks with wind generation for improving voltage stability', Renewable Energy, vol. 58, pp. 85-94.
View/Download from: Publisher's site

Roy, NK, Pota, HR, Mahmud, MA & Hossain, MJ 2013, 'Key factors affecting voltage oscillations of distribution networks with distributed generation and induction motor loads', International Journal of Electrical Power & Energy Systems, vol. 53, pp. 515-528.
View/Download from: Publisher's site

Ruelo, MTG, Tijing, LD, Amarjargal, A, Park, C-H, Kim, HJ, Pant, HR, Lee, DH & Kim, CS 2013, 'Assessing the effect of catalytic materials on the scaling of carbon steel', Desalination, vol. 313, pp. 189-198.
View/Download from: Publisher's site
View description>>

The present study investigated the efficacy of catalytic materials, i.e., tourmaline, zinc and aluminum, in mitigating calcium carbonate scaling of carbon steel material. Artificial hard water (480 ± 20 mg/l) was used to re-circulate in the system loop for 3 days of fouling test. Tests were carried out at various solution temperatures (27, 40, and 70 °C) and flow rates (800, 1200, and 1600 ml/min). Different measurements and characterization methods were carried out. The results showed consistently lower deposition of scales when the catalytic materials were incorporated in the system (i.e., treatment case), with as much as 21% reduction compared to the no-treatment case, depending on the solution temperature and flow rate. There was more corrosion activity observed in the no-treatment case compared to the treatment case. Furthermore, the scales at the no-treatment case showed pointed, sea-urchin-like structure, while those of the treatment case were dull, star-like structures and with thicker crystals than those at no-treatment case. In this study, we have shown the potential of catalytic materials in reducing scaling formation on non-heated carbon steel surface.

Rujikiatkamjorn, C & Indraratna, B 2013, 'Current state of the art in vacuum preloading for stabilising soft soil', Geotechnical Engineering, vol. 44, no. 4, pp. 77-87.
View description>>

In this paper the analytical solutions for radial consolidation that include time dependent surcharge loading and vacuum pressure are proposed, whilst also considering the impact of the parabolic variation of permeability in the smear zone. The use of the spectral method for multilayered soil consolidation is introduced and verified. The Elliptical Cavity Expansion Theory is used to predict the extent of soil disturbance (smear zone) caused by the installation of mandrel driven vertical drains. The predicted smear zone is then compared to the data obtained from large-scale radial consolidation tests. Furthermore, the advantages and limitations of applying a vacuum through vertical drains are discussed using the proposed solutions. The vacuum pressure applied generates a negative pore water pressure that increases the effective stress within the soil, which leads to an accelerated consolidation. Vacuum pressure is modelled as a distributed negative pressure (suction) along the length of the drain and across the surface of the soil. Analytical and numerical analyses that incorporate the Authors' equivalent plane strain solution are conducted to predict the excess pore pressures, lateral and vertical displacement. The application of the theoretical models for selected case histories at the site of the 2nd Bangkok International Airport and the Port of Brisbane, are discussed and analysed. The predictions are compared with the available field data and show that the proposed model can be confidently used to predict the performance with acceptable accuracy through rigorous mathematical modelling and numerical analysis. The research findings verify that the role of the smear zone and vacuum distribution can significantly affect the consolidation of soil, but these aspects need to be modelled appropriately to obtain reliable.

RUJIKIATKAMJORN, C, ARDANA, MDW, INDRARATNA, B & LEROUEIL, S 2013, 'Conceptual model describing smear zone caused by mandrel action', Géotechnique, vol. 63, no. 16, pp. 1377-1388.
View/Download from: Publisher's site
View description>>

In this study the characteristics and extent of the smear zone are investigated using a large, undisturbed sample. The aim of using such a sample is to capture the realistic characteristics of the smear zone in relation to the in situ soil structure during the installation of prefabricated vertical drains (PVDs) using a mandrel. The extent of the smear zone for Bulli clay (New South Wales, Australia) is determined on the basis of normalised permeability (kh/khu) and the reduction in the water content upon consolidation. The permeability and compressibility of the soil are investigated to determine the extent to which the soil surrounding the PVD has become disturbed. In laboratory testing, the soil consolidation behaviour due to a PVD is studied using a large-scale consolidometer apparatus. The numerical results have shown that the writers' solutions give excellent agreement with laboratory observations.

Rujikiatkamjorn, C, Indraratna, B & Chiaro, G 2013, 'Compaction of coal wash to optimise its utilisation as water-front reclamation fill', Geomechanics and Geoengineering, vol. 8, no. 1, pp. 36-45.
View/Download from: Publisher's site
View description>>

The coal mining industry in and around Wollongong, New South Wales, Australia, is responsible for producing an ever growing quantity of coal washery reject materials and other mine waste aggregates. Considerable effort is being undertaken to reuse, beneficially, these waste products in the immediate suburbs of Wollongong. In this paper, detailed laboratory investigations carried out on coal wash (i.e. coarse coal washery reject), produced at Dendrobium coal mine near Wollongong, are presented. Geotechnical tests were conducted to determine the particle size distribution, compaction characteristics, shear resistance and collapse potential. Compaction tests were performed under dry and submerged conditions to examine comprehensively the compactability and the strength properties of coal wash. The laboratory tests show that, if properly compacted, Dendrobium coal wash has a good potential as effective low-porosity fill for embankments and port reclamation. © 2013 Copyright Taylor and Francis Group, LLC.

Ruppert, MG & Moheimani, SOR 2013, 'A novel self-sensing technique for tapping-mode atomic force microscopy', Review of Scientific Instruments, vol. 84, no. 12, pp. 125006-125006.
View/Download from: Publisher's site
View description>>

This work proposes a novel self-sensing tapping-mode atomic force microscopy operation utilizing charge measurement. A microcantilever coated with a single piezoelectric layer is simultaneously used for actuation and deflection sensing. The cantilever can be batch fabricated with existing micro electro mechanical system processes. The setup enables the omission of the optical beam deflection technique which is commonly used to measure the cantilever oscillation amplitude. Due to the high amount of capacitive feedthrough in the measured charge signal, a feedforward control technique is employed to increase the dynamic range from less than 1 dB to approximately 35 dB. Experiments show that the conditioned charge signal achieves excellent signal-to-noise ratio and can therefore be used as a feedback signal for atomic force microscopy imaging.

Saberi, M, Mirtalaie, MS, Hussain, FK, Azadeh, A, Hussain, OK & Ashjari, B 2013, 'A granular computing-based approach to credit scoring modeling', NEUROCOMPUTING, vol. 122, no. 1, pp. 100-115.
View/Download from: Publisher's site
View description>>

The credit card industry has been growing rapidly and thus huge numbers of consumers' credit data are collected by the credit department of the banks. The credit scoring managers often evaluate the consumer's credit with intuitive experience. However, with the support of the credit classification models, the managers can accurately evaluate the applicants' credit score. In this study, a neurocomputing-based granular approach is proposed to model credit scoring. Granular computing is used to compute the size of training and testing groups. Artificial neural networks (ANN) and data envelopment analysis (DEA) are used to model credit lending decisions in the online and offline manner, respectively. Proposed method is composed of three distinct stages based on trust and credibility concept. Trust is introduced and modeled via ANN in online module. Also credibility is modeled via DEA in offline module in present study. This paper is a pioneer in examining the concept of granularity for selecting the optimum size of testing and training group in machine learning area. In addition, proposing flexible trust ranges comparing to the current constant ones will support the importance of customers with higher credit scores to financial markets. To show the applicability and superiority of the proposed algorithm, it is applied to a credit-card data set obtained from the UCI repository. © 2013 Elsevier B.V.

Saco, PM & Moreno‐de las Heras, M 2013, 'Ecogeomorphic coevolution of semiarid hillslopes: Emergence of banded and striped vegetation patterns through interaction of biotic and abiotic processes', Water Resources Research, vol. 49, no. 1, pp. 115-126.
View/Download from: Publisher's site
View description>>

Key PointsVegetation patterns strongly depend on feedbacks with coevolving landformsPatterns prescribed by relative rates of fluvial and diffusive erosion processesVegetation feedbacks alter sediment redistribution and emergent microtopography

Safari, HO, Pirasteh, S, Pradhan, B & Amid, H 2013, 'Geohazards analysis of Pisa tunnel in a fractured incompetent rocks in Zagros Mountains, Iran', Arabian Journal of Geosciences, vol. 6, no. 4, pp. 1101-1112.
View/Download from: Publisher's site

Safavi-Naeini, M, Han, Z, Cutajar, D, Guatelli, S, Petasecca, M, Lerch, MLF, Franklin, DR, Jakubek, J, Pospisil, S, Bucci, J, Zaider, M & Rosenfeld, AB 2013, 'BrachyView, A novel inbody imaging system for HDR prostate brachytherapy: Design and Monte Carlo feasibility study', MEDICAL PHYSICS, vol. 40, no. 7.
View/Download from: Publisher's site

Samal, PB, Soh, PJ & Vandenbosch, GAE 2013, 'A SYSTEMATIC DESIGN PROCEDURE FOR MICROSTRIP-BASED UNIDIRECTIONAL UWB ANTENNAS', Progress In Electromagnetics Research, vol. 143, pp. 105-130.
View/Download from: Publisher's site

San, PP, Ling, SH & Nguyen, HT 2013, 'Hybrid PSO-based variable translation wavelet neural network and its application to hypoglycemia detection system', NEURAL COMPUTING & APPLICATIONS, vol. 23, no. 7-8, pp. 2177-2184.
View/Download from: Publisher's site
View description>>

To provide the detection of hypoglycemic episodes in Type 1 diabetes mellitus, hypoglycemia detection system is developed by the use of variable translation wavelet neural network (VTWNN) in this paper. A wavelet neural network with variable translation

San, PP, Ling, SH & Nguyen, HT 2013, 'Industrial Application of Evolvable Block-Based Neural Network to Hypoglycemia Monitoring System', IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 60, no. 12, pp. 5892-5901.
View/Download from: Publisher's site
View description>>

Insulin-dependent diabetes mellitus is classified as type 1 diabetes mellitus (T1DM), and it can be further classified as immune-mediated or idiopathic. It is dangerous and can result in unconsciousness, seizures, and even sudden death. The most common physiological parameters to be effected from a hypoglycemic reaction are heart rate and corrected QT interval of the electrocardiogram (ECG) signal. Considering the correlation between physiological parameters of an ECG signal and the status of hypoglycemia, a noninvasive hypoglycemia monitoring system is tested and introduced by proposing a hybrid particle-swarm-optimization-based block-based neural network (BBNN) algorithm. The proposed BBNN model offers advantages over conventional neural networks by performing the simultaneous optimization of both structure and weights. The hybrid particle swarm optimization with wavelet mutation searches for optimized structure and network parameters through particle information over a search space. All the actual data sets of 15 T1DM children were collected at the Department of Health, Government of Western Australia. Several experiments showed that the proposed BBNN performed well in terms of better sensitivity and specificity.

Sanjid, A, Masjuki, HH, Kalam, MA, Rahman, SMA, Abedin, MJ & Palash, SM 2013, 'Impact of palm, mustard, waste cooking oil and Calophyllum inophyllum biofuels on performance and emission of CI engine', Renewable and Sustainable Energy Reviews, vol. 27, pp. 664-682.
View/Download from: Publisher's site

SAURET, E, SAHA, SC & GU, Y 2013, 'NUMERICAL SIMULATIONS OF PARTICLE DEPOSITION IN METAL FOAM HEAT EXCHANGERS', International Journal of Computational Materials Science and Engineering, vol. 02, no. 03n04, pp. 1350016-1350016.
View/Download from: Publisher's site
View description>>

Australia is a high-potential country for geothermal power with reserves currently estimated in the tens of millions of petajoules, enough to power the nation for at least 1000 years at current usage. However, these resources are mainly located in isolated arid regions where water is scarce. Therefore, wet cooling systems for geothermal plants in Australia are the least attractive solution and thus air-cooled heat exchangers are preferred. In order to increase the efficiency of such heat exchangers, metal foams have been used. One issue raised by this solution is the fouling caused by dust deposition. In this case, the heat transfer characteristics of the metal foam heat exchanger can dramatically deteriorate. Exploring the particle deposition property in the metal foam exchanger becomes crucial. This paper is a numerical investigation aimed to address this issue. Two-dimensional (2D) numerical simulations of a standard one-row tube bundle wrapped with metal foam in cross-flow are performed and highlight preferential particle deposition areas.

Schellart, P, Nelles, A, Buitink, S, Corstanje, A, Enriquez, JE, Falcke, H, Frieswijk, W, Hörandel, JR, Horneffer, A, James, CW, Krause, M, Mevius, M, Scholten, O, ter Veen, S, Thoudam, S, van den Akker, M, Alexov, A, Anderson, J, Avruch, IM, Bähren, L, Beck, R, Bell, ME, Bennema, P, Bentum, MJ, Bernardi, G, Best, P, Bregman, J, Breitling, F, Brentjens, M, Broderick, J, Brüggen, M, Ciardi, B, Coolen, A, de Gasperin, F, de Geus, E, de Jong, A, de Vos, M, Duscha, S, Eislöffel, J, Fallows, RA, Ferrari, C, Garrett, MA, Grießmeier, J, Grit, T, Hamaker, JP, Hassall, TE, Heald, G, Hessels, JWT, Hoeft, M, Holties, HA, Iacobelli, M, Juette, E, Karastergiou, A, Klijn, W, Kohler, J, Kondratiev, VI, Kramer, M, Kuniyoshi, M, Kuper, G, Maat, P, Macario, G, Mann, G, Markoff, S, McKay-Bukowski, D, McKean, JP, Miller-Jones, JCA, Mol, JD, Mulcahy, DD, Munk, H, Nijboer, R, Norden, MJ, Orru, E, Overeem, R, Paas, H, Pandey-Pommier, M, Pizzo, R, Polatidis, AG, Renting, A, Romein, JW, Röttgering, H, Schoenmakers, A, Schwarz, D, Sluman, J, Smirnov, O, Sobey, C, Stappers, BW, Steinmetz, M, Swinbank, J, Tang, Y, Tasse, C, Toribio, C, van Leeuwen, J, van Nieuwpoort, R, van Weeren, RJ, Vermaas, N, Vermeulen, R, Vocks, C, Vogt, C, Wijers, RAMJ, Wijnholds, SJ, Wise, MW, Wucknitz, O, Yatawatta, S, Zarka, P & Zensus, A 2013, 'Detecting cosmic rays with the LOFAR radio telescope', Astronomy & Astrophysics, vol. 560, pp. A98-A98.
View/Download from: Publisher's site

Schneider, S, Bellmann, A, Fallböhmer, M, Sousanabady, RJ & Deuse, J 2013, 'Agiler Ansatz für eine globale Prozessplanung', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 5, pp. 310-314.
View/Download from: Publisher's site
View description>>

Kurzfassung In einer globalen Produktion erfolgt die Prozessplanung zumeist in verteilten Planungsteams. Die hierdurch entstehenden Anforderungen an den Planungsprozess sind eine gesteigerte Kommunikation, erhöhte Transparenz, reduzierte Komplexität sowie ein verstärkter Wissenstransfer. Als geeigneten Lösungsansatz stellt dieser Beitrag die neu entwickelte Methodik der Agilen Prozessplanung im Produktentstehungsprozess (APP) vor und beschreibt die Ergebnisse der Erprobung in der betrieblichen Praxis.

Schuba, C, Elsässer, G, Eickelmann, M & Deuse, J 2013, 'Investitionsermittlung für hochflexible Verbundfertigungssysteme', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 108, no. 6, pp. 421-425.
View/Download from: Publisher's site
View description>>

Kurzfassung Auf Grund erhöhtem Zeit– und Kostendruck verlagern produzierende Unternehmen zunehmend die Planungsaktivitäten und -entscheidungen in die frühen Phasen der Produktentstehung. Insbesondere die stark wachsende Varianz und Komplexität von Produkten führt zu steigenden Anforderungen an die Gestaltung von Produktionssystemen. Eine wesentliche Komponente zur Unterstützung von Entscheidungsprozessen in der Produktentstehung ist die prospektive Ermittlung von Investitionskosten für die Integration neuer Varianten in bestehende Fertigungsstrukturen. Dieser Beitrag beschreibt eine Methodik zur Ermittlung von Investitionskosten in frühen Phasen der Produktentstehung.

Schwitter, BK, Parker, AE, Fattorini, AP, Mahon, SJ & Heimlich, MC 2013, 'Study of Gate Junction Temperature in GaAs pHEMTs Using Gate Metal Resistance Thermometry', IEEE Transactions on Electron Devices, vol. 60, no. 10, pp. 3358-3364.
View/Download from: Publisher's site

Seah, C-W, Ong, Y-S & Tsang, IW 2013, 'Combating Negative Transfer From Predictive Distribution Differences', IEEE Transactions on Cybernetics, vol. 43, no. 4, pp. 1153-1165.
View/Download from: Publisher's site
View description>>

Domain adaptation (DA), which leverages labeled data from related source domains, comes in handy when the label information of the target domain is scarce or unavailable. However, as the source data do not come from the same origin as that of the target domain, the predictive distributions of the source and target domains are likely to differ in reality. At the extreme, the predictive distributions of the source domains can differ completely from that of the target domain. In such case, using the learned source classifier to assist in the prediction of target data can result in prediction performance that is poorer than that with the omission of the source data. This phenomenon is established as negative transfer with impact known to be more severe in the multiclass context. To combat negative transfer due to differing predictive distributions across domains, we first introduce the notion of positive transferability for the assessment of synergy between the source and target domains in their prediction models, and we also propose a criterion to measure the positive transferability between sample pairs of different domains in terms of their prediction distributions. With the new measure, a predictive distribution matching (PDM) regularizer and a PDM framework learn the target classifier by favoring source data with large positive transferability while inferring the labels of target unlabeled data. Extensive experiments are conducted to validate the performance efficacy of the proposed PDM framework using several commonly used multidomain benchmark data sets, including Sentiment, Reuters, and Newsgroup, in the context of both binary-class and multiclass domains

Seah, C-W, Tsang, IW & Ong, Y-S 2013, 'Transfer Ordinal Label Learning', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 11, pp. 1863-1876.
View/Download from: Publisher's site
View description>>

Designing a classifier in the absence of labeled data is becoming a common encounter as the acquisition of informative labels is often difficult or expensive, particularly on new uncharted target domains. The feasibility of attaining a reliable classifier for the task of interest is embarked by some in transfer learning, where label information from relevant source domains is considered for complimenting the design process. The core challenge arising from such endeavors, however, is the induction of source sample selection bias, such that the trained classifier has the tendency of steering toward the distribution of the source domain. In addition, this bias is deemed to become more severe on data involving multiple classes. Considering this cue, our interest in this paper is to address such a challenge in the target domain, where ordinal labeled data are unavailable. In contrast to the previous works, we propose a transfer ordinal label learning paradigm to predict the ordinal labels of target unlabeled data by spanning the feasible solution space with ensemble of ordinal classifiers from the multiple relevant source domains. Specifically, the maximum margin criterion is considered here for the construction of the target classifier from an ensemble of source ordinal classifiers. Theoretical analysis and extensive empirical studies on real-world data sets are presented to study the benefits of the proposed method.

Seppelt, R, Bankamp, D, Voinov, AA & Rizzoli, A 2013, '6th International Congress on Environmental Modelling and Software (iEMSs): “Managing Resources of a Limited Planet: Pathways and Visions under Uncertainty”: A congress report', Environmental Modelling & Software, vol. 43, pp. 160-162.
View/Download from: Publisher's site

Sezer, EA, Pradhan, B & Gokceoglu, C 2013, 'Erratum to', Expert Systems with Applications: An International Journal, vol. 40, no. 6, p. 2360.

Sezer, EA, Pradhan, B & Gokceoglu, C 2013, 'Erratum to: “Manifestation of an adaptive neuro-fuzzy model on landslide susceptibility mapping: Klang valley, Malaysia” [Expert Systems with Applications 38 (2011) 8208–8219]', Expert Systems with Applications, vol. 40, no. 6, pp. 2360-2360.
View/Download from: Publisher's site

Shafie, SM, Mahlia, TMI & Masjuki, HH 2013, 'Life cycle assessment of rice straw co-firing with coal power generation in Malaysia', Energy, vol. 57, pp. 284-294.
View/Download from: Publisher's site

Shahabuddin, M, Liaquat, AM, Masjuki, HH, Kalam, MA & Mofijur, M 2013, 'Ignition delay, combustion and emission characteristics of diesel engine fueled with biodiesel', Renewable and Sustainable Energy Reviews, vol. 21, pp. 623-632.
View/Download from: Publisher's site

Shahabuddin, M, Masjuki, HH & Kalam, MA 2013, 'Experimental Investigation into Tribological Characteristics of Bio-Lubricant Formulated from Jatropha Oil', Procedia Engineering, vol. 56, pp. 597-606.
View/Download from: Publisher's site

Shahabuddin, M, Masjuki, HH, Kalam, MA, Bhuiya, MMK & Mehat, H 2013, 'Comparative tribological investigation of bio-lubricant formulated from a non-edible oil source (Jatropha oil)', Industrial Crops and Products, vol. 47, pp. 323-330.
View/Download from: Publisher's site

Shang-Lin Wu, Lun-De Liao, Shao-Wei Lu, Wei-Ling Jiang, Shi-An Chen & Chin-Teng Lin 2013, 'Controlling a Human–Computer Interface System With a Novel Classification Method that Uses Electrooculography Signals', IEEE Transactions on Biomedical Engineering, vol. 60, no. 8, pp. 2133-2141.
View/Download from: Publisher's site
View description>>

Electrooculography (EOG) signals can be used to control human-computer interface (HCI) systems, if properly classified. The ability to measure and process these signals may help HCI users to overcome many of the physical limitations and inconveniences in daily life. However, there are currently no effective multidirectional classification methods for monitoring eye movements. Here, we describe a classification method used in a wireless EOG-based HCI device for detecting eye movements in eight directions. This device includes wireless EOG signal acquisition components, wet electrodes and an EOG signal classification algorithm. The EOG classification algorithm is based on extracting features from the electrical signals corresponding to eight directions of eye movement (up, down, left, right, up-left, down-left, up-right, and down-right) and blinking. The recognition and processing of these eight different features were achieved in real-life conditions, demonstrating that this device can reliably measure the features of EOG signals. This system and its classification procedure provide an effective method for identifying eye movements. Additionally, it may be applied to study eye functions in real-life conditions in the near future. © 1964-2012 IEEE.

Shannon, AG 2013, 'The sequences of Horadam, Williams and Philippou as generalized Lucas sequences', Advanced Studies in Contemporary Mathematics (Kyungshang), vol. 23, no. 3, pp. 525-532.
View description>>

Horadam extended the Lucas recursive sequences of order 2 in a series of influential papers. Williams further generalized some of the Lucas properties for order 3, and Williams and Philippou separately developed analogous results for the arbitrary order case. This paper inter-relates and generalizes some of the major results of these authors in so far as they are clearly analogous to some well-known second order cases.

Shannon, AG & Nguyen, HT 2013, 'Empirical approaches to the application of mathematical techniques in health technologies', International Journal Bioautomation, vol. 17, no. 3, pp. 125-150.
View description>>

Mathematical modeling of ageing is built in this paper around research and development activities in cooperation with pharmaceutical companies and hospitals. The interaction of 'dirty data' with appropriate mathematical techniques is exemplified mainly with applications to health technologies in endocrinology and oncology. The emphasis is more on old techniques in new situations than on new techniques, though there are references to some novel approaches to modeling.

Shannon, AG, Cook, CK & Hillman, RA 2013, 'Some aspects of Fibonacci polynomial congruences', Annales Mathematicae et Informaticae, vol. 41, no. 1, pp. 211-217.
View description>>

This paper formulates a definition of Fibonacci polynomials which is slightly different from the traditional definitions, but which is related to the classical polynomials of Bernoulli, Euler and Hermite. Some related congruence properties are developed and some unanswered questions are outlined.

Shekarchian, M, Zarifi, F, Moghavvemi, M, Motasemi, F & Mahlia, TMI 2013, 'Energy, exergy, environmental and economic analysis of industrial fired heaters based on heat recovery and preheating techniques', Energy Conversion and Management, vol. 71, pp. 51-61.
View/Download from: Publisher's site

Sheng, D, Cui, L & Ansari, Y 2013, 'Interpretation of Cone Factor in Undrained Soils via Full-Penetration Finite-Element Analysis', International Journal of Geomechanics, vol. 13, no. 6, pp. 745-753.
View/Download from: Publisher's site

Sheng, D, Zhang, S & Yu, Z 2013, 'Unanswered questions in unsaturated soil mechanics', Science China Technological Sciences, vol. 56, no. 5, pp. 1257-1272.
View/Download from: Publisher's site

Sheng, D, Zhang, S, Yu, Z & Zhang, J 2013, 'Assessing frost susceptibility of soils using PCHeave', Cold Regions Science and Technology, vol. 95, pp. 27-38.
View/Download from: Publisher's site

Sheng, DC, Zhang, S & Li, X 2013, 'Effects of train loads on frost heave of embankments', Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, vol. 35, no. 12, pp. 2186-2191.
View description>>

Substantial frost heave is observed in coarse fills in high-speed railway embankment. These coarse fills have very low water content and are located above the groundwater. In an attempt to explain the unexpected frost heave, it is proposed that the cyclic train loads cause the development of the excess pore water pressure in the underlying subgrade soils and hence 'pump' up the water to the frost front, which in turn feeds the formation of ice and results in continuous frost heave. A simple quantitative model is developed to simulate the pumping-enhanced frost heave. The numerical results show that the proposed mechanism can indeed provide a legitimate explanation for the otherwise unexpected frost heave. The engineering implications of this new frost heave mechanism are also discussed, in the context of designing frost heave mitigation measures in seasonally frozen regions.

Shenghua Gao, Tsang, IW & Liang-Tien Chia 2013, 'Sparse Representation With Kernels', IEEE Transactions on Image Processing, vol. 22, no. 2, pp. 423-434.
View/Download from: Publisher's site
View description>>

Recent research has shown the initial success of sparse coding (Sc) in solving many computer vision tasks. Motivated by the fact that kernel trick can capture the nonlinear similarity of features, which helps in finding a sparse representation of nonlinear features, we propose kernel sparse representation (KSR). Essentially, KSR is a sparse coding technique in a high dimensional feature space mapped by an implicit mapping function. We apply KSR to feature coding in image classification, face recognition, and kernel matrix approximation. More specifically, by incorporating KSR into spatial pyramid matching (SPM), we develop KSRSPM, which achieves a good performance for image classification. Moreover, KSR-based feature coding can be shown as a generalization of efficient match kernel and an extension of Sc-based SPM. We further show that our proposed KSR using a histogram intersection kernel (HIK) can be considered a soft assignment extension of HIK-based feature quantization in the feature coding process. Besides feature coding, comparing with sparse coding, KSR can learn more discriminative sparse codes and achieve higher accuracy for face recognition. Moreover, KSR can also be applied to kernel matrix approximation in large scale learning tasks, and it demonstrates its robustness to kernel matrix approximation, especially when a small fraction of the data is used. Extensive experimental results demonstrate promising results of KSR in image classification, face recognition, and kernel matrix approximation. All these applications prove the effectiveness of KSR in computer vision and machine learning tasks.

Shi, L & Kodagoda, S 2013, 'Towards generalization of semi-supervised place classification over generalized Voronoi graph', Robotics and Autonomous Systems, vol. 61, no. 8, pp. 785-796.
View/Download from: Publisher's site
View description>>

With the progress of humanrobot interaction (HRI), the ability of a robot to perform high-level tasks in complex environments is fast becoming an essential requirement. To this end, it is desirable for a robot to understand the environment at both geometric and semantic levels. Therefore in recent years, research towards place classification has been gaining in popularity. After the era of heuristic and rulebased approaches, supervised learning algorithms have been extensively used for this purpose, showing satisfactory performance levels. However, most of those approaches have only been trained and tested in the same environments and thus impede a generalized solution. In this paper, we have proposed a semisupervised place classification over a generalized Voronoi graph (SPCoGVG) which is a semi-supervised learning framework comprised of three techniques: support vector machine (SVM), conditional random field (CRF) and generalized Voronoi graph (GVG), in order to improve the generalizability. The inherent problem of training CRF with partially labeled data has been solved using a novel parameter estimation algorithm. The effectiveness of the proposed algorithm is validated through extensive analysis of data collected in international university environments.

Shokri, H, Ashjari, B, Saberi, M & Yoon, JH 2013, 'An Integrated AHP-VIKOR Methodology for Facility Layout Design', Industrial Engineering and Management Systems, vol. 12, no. 4, pp. 389-405.
View/Download from: Publisher's site

Shon, HK, Phuntsho, S, Chaudhary, DS, Vigneswaran, S & Cho, J 2013, 'Nanofiltration for water and wastewater treatment – a mini review', Drinking Water Engineering and Science Discussions, vol. 6, no. 1, pp. 59-77.
View/Download from: Publisher's site
View description>>

Abstract. The application of membrane technology in water and wastewater treatment is increasing due to stringent water quality standards. Nanofiltration (NF) is one of the widely used membrane processes for water and wastewater treatment in addition to other applications such as desalination. NF has replaced reverse osmosis (RO) membranes in many applications due to lower energy consumption and higher flux rates. This paper briefly reviews the application of NF for water and wastewater treatment including fundamentals of membrane process in general, mechanisms of NF process including few basic models. fouling challenges and their control mechanisms adopted.

Shon, HK, Phuntsho, S, Chaudhary, DS, Vigneswaran, S & Cho, J 2013, 'Nanofiltration for water and wastewater treatment – a mini review', Drinking Water Engineering and Science, vol. 6, no. 1, pp. 47-53.
View/Download from: Publisher's site
View description>>

Abstract. The application of membrane technology in water and wastewater treatment is increasing due to stringent water quality standards. Nanofiltration (NF) is one of the widely used membrane processes for water and wastewater treatment in addition to other applications such as desalination. NF has replaced reverse osmosis (RO) membranes in many applications due to lower energy consumption and higher flux rates. This paper briefly reviews the application of NF for water and wastewater treatment including fundamentals, mechanisms, fouling challenges and their controls.

Sick, N, Golembiewski, B & Leker, J 2013, 'The influence of raw material prices on renewables diffusion', Foresight, vol. 15, no. 6, pp. 477-491.
View/Download from: Publisher's site
View description>>

Purpose: There are several approaches trying to explain the diffusion of renewable energy technologies (RET). The most commonly used instruments are learning and experience curves, followed by further economic, policy- and barrier-related analyses. In order to gain a more comprehensive understanding, additional influence factors on RET diffusion have to be studied. This paper aims to contribute to research on RET diffusion by adding the raw material price perspective. Design/methodology/approach: The authors develop a regression model to test the influence of raw material prices on RET diffusion, using investments in RET capacities as indicators of diffusion, and crude oil and natural gas prices as well as public R&D subsidies as main independent variables. The model is then applied to emerging RET (wind and solar power) for electricity generation in 18 OECD-countries. Findings: In the case of wind power, the model shows an adequate fit and a highly significant impact of oil as well as gas prices on investments in RET capacity. In the case of solar power, the impact of raw material prices proves to be highly significant as well, but the weak model fit demands further adjustments of the parameters. Originality/value: Theoretical implications include the expansion of existing RET diffusion models to a raw material price component. From a practical point of view, the authors provide a starting basis for the systematic integration of raw material price developments into companies' planning and forecasting processes. © Emerald Group Publishing Limited.

Siddiqa, S, Hossain, MA & Saha, SC 2013, 'Natural Convection Flow in a Strong Cross Magnetic Field With Radiation', Journal of Fluids Engineering, vol. 135, no. 5.
View/Download from: Publisher's site
View description>>

The problem of magnetohydrodynamic natural convection boundary layer flow of an electrically conducting and optically dense gray viscous fluid along a heated vertical plate is analyzed in the presence of strong cross magnetic field with radiative heat transfer. In the analysis radiative heat flux is considered by adopting optically thick radiation limit. Attempt is made to obtain the solutions valid for liquid metals by taking Pr ≪1. Boundary layer equations are transformed in to a convenient dimensionless form by using stream function formulation (SFF) and primitive variable formulation (PVF). Nonsimilar equations obtained from SFF are then simulated by implicit finite difference (Keller-box) method whereas parabolic partial differential equations obtained from PVF are integrated numerically by hiring direct finite difference method over the entire range of local Hartmann parameter, ξ. Further, asymptotic solutions are also obtained for large and small values of local Hartmann parameter ξ. A favorable agreement is found between the results for small, large and all values of ξ. Numerical results are also demonstrated graphically by showing the effect of various physical parameters on shear stress, rate of heat transfer, velocity, and temperature.

Siddiqa, S, Hossain, MA & Saha, SC 2013, 'Natural Convection Flow with Surface Radiation Along a Vertical Wavy Surface', Numerical Heat Transfer, Part A: Applications, vol. 64, no. 5, pp. 400-415.
View/Download from: Publisher's site

Silakhori, M, Naghavi, M, Metselaar, H, Mahlia, T, Fauzi, H & Mehrali, M 2013, 'Accelerated Thermal Cycling Test of Microencapsulated Paraffin Wax/Polyaniline Made by Simple Preparation Method for Solar Thermal Energy Storage', Materials, vol. 6, no. 5, pp. 1608-1620.
View/Download from: Publisher's site
View description>>

Microencapsulated paraffin wax/polyaniline was prepared using a simple in situ polymerization technique, and its performance characteristics were investigated. Weight losses of samples were determined by Thermal Gravimetry Analysis (TGA). The microencapsulated samples with 23% and 49% paraffin showed less decomposition after 330 °C than with higher percentage of paraffin. These samples were then subjected to a thermal cycling test. Thermal properties of microencapsulated paraffin wax were evaluated by Differential Scanning Calorimeter (DSC). Structure stability and compatibility of core and coating materials were also tested by Fourier transform infrared spectrophotometer (FTIR), and the surface morphology of the samples are shown by Field Emission Scanning Electron Microscopy (FESEM). It has been found that the microencapsulated paraffin waxes show little change in the latent heat of fusion and melting temperature after one thousand thermal recycles. Besides, the chemical characteristics and structural profile remained constant after one thousand thermal cycling tests. Therefore, microencapsulated paraffin wax/polyaniline is a stable material that can be used for thermal energy storage systems.

Silitonga, AS, Masjuki, HH, Mahlia, TMI, Ong, HC & Chong, WT 2013, 'Experimental study on performance and exhaust emissions of a diesel engine fuelled with Ceiba pentandra biodiesel blends', Energy Conversion and Management, vol. 76, pp. 828-836.
View/Download from: Publisher's site

Silitonga, AS, Masjuki, HH, Mahlia, TMI, Ong, HC, Atabani, AE & Chong, WT 2013, 'A global comparative review of biodiesel production from jatropha curcas using different homogeneous acid and alkaline catalysts: Study of physical and chemical properties', Renewable and Sustainable Energy Reviews, vol. 24, pp. 514-533.
View/Download from: Publisher's site

Silitonga, AS, Masjuki, HH, Mahlia, TMI, Ong, HC, Chong, WT & Boosroh, MH 2013, 'Overview properties of biodiesel diesel blends from edible and non-edible feedstock', Renewable and Sustainable Energy Reviews, vol. 22, pp. 346-360.
View/Download from: Publisher's site

Silitonga, AS, Ong, HC, Mahlia, TMI, Masjuki, HH & Chong, WT 2013, 'Characterization and production of Ceiba pentandra biodiesel and its blends', Fuel, vol. 108, pp. 855-858.
View/Download from: Publisher's site

Silitonga, AS, Ong, HC, Masjuki, HH, Mahlia, TMI, Chong, WT & Yusaf, TF 2013, 'Production of biodiesel from Sterculia foetida and its process optimization', Fuel, vol. 111, pp. 478-484.
View/Download from: Publisher's site

Simon, A, McDonald, JA, Khan, SJ, Price, WE & Nghiem, LD 2013, 'Effects of caustic cleaning on pore size of nanofiltration membranes and their rejection of trace organic chemicals', Journal of Membrane Science, vol. 447, pp. 153-162.
View/Download from: Publisher's site

Simon, A, Price, WE & Nghiem, LD 2013, 'Changes in surface properties and separation efficiency of a nanofiltration membrane after repeated fouling and chemical cleaning cycles', Separation and Purification Technology, vol. 113, pp. 42-50.
View/Download from: Publisher's site

Simon, A, Price, WE & Nghiem, LD 2013, 'Impact of chemical cleaning on the nanofiltration of pharmaceutically active compounds (PhACs): The role of cleaning temperature', Journal of the Taiwan Institute of Chemical Engineers, vol. 44, no. 5, pp. 713-723.
View/Download from: Publisher's site

Simon, A, Price, WE & Nghiem, LD 2013, 'Influence of formulated chemical cleaning reagents on the surface properties and separation efficiency of nanofiltrationmembranes', Journal of Membrane Science, vol. 432, pp. 73-82.
View/Download from: Publisher's site

Simpson, CA & Cheng, E 2013, 'Noise cancellation: disrupting audio perception', International Journal of Arts and Technology, vol. 6, no. 2, pp. 123-123.
View/Download from: Publisher's site
View description>>

Noise cancellation: disrupting audio perception is an interactive sound and visual art installation that explores the creation of new technology - open-air active signal cancellation - and how it can be incorporated into interactive art installations. As an ongoing collaborative project between artist and engineer, noise cancellation engages signal processing research issues in a creative application space. This paper describes the collaborative installation work in progress and discusses why this active signal cancellation technology is important in relation to changing modes of listening and hearing, altering spatial perception and encouraging audiences to fully interact with art installations within art galleries (and related spaces). Copyright © 2013 Inderscience Enterprises Ltd.

Skinner, B, Yuan, S, Huang, S, Liu, D, Cai, B, Dissanayake, G, Lau, H, Bott, A & Pagac, D 2013, 'Optimisation for job scheduling at automated container terminals using genetic algorithm', COMPUTERS & INDUSTRIAL ENGINEERING, vol. 64, no. 1, pp. 511-523.
View/Download from: Publisher's site
View description>>

Abstract This paper presents a genetic algorithm (GA)-based optimisation approach to improve container handling operations at the Patrick AutoStrad container terminal located in Brisbane Australia. In this paper we focus on scheduling for container transfers and encode the problem using a two-part chromosome approach which is then solved using a modified genetic algorithm. In simulation experiments, the performance of the GA-based approach and a sequential job scheduling method are evaluated and compared with different scheduling scenarios. The experimental results show that the GA-based approach can find better solutions which improve the overall performance. The GA-based approach has been implemented in the terminal scheduling system and the live testing results show that the GA-based approach can reduce the overall time-related cost of container transfers at the automated container terminal. Crown Copyright © 2012 Published by Elsevier Ltd. All rights reserved.

Sleap, SB, Turner, BD, Krabbenhøft, K & Sloan, SW 2013, 'Effects of pCO2 on the Removal of Fluoride from Wastewater by Calcite', Journal of Environmental Engineering, vol. 139, no. 8, pp. 1053-1061.
View/Download from: Publisher's site

Sobala, A & Hutvagner, G 2013, 'Small RNAs derived from the 5′ end of tRNA can inhibit protein translation in human cells', RNA Biology, vol. 10, no. 4, pp. 553-563.
View/Download from: Publisher's site
View description>>

Recently, it has been shown that tRNA molecules can be processed into small RNAs that are derived from both the 5′ and 3′ termini. To date, the function of these tRNA fragments (tRFs) derived from the 5′ end of tRNAs has not been investigated in depth. We present evidence that conserved residues in tRNAs, present in all 5′ tRFs, can inhibit the process of protein translation without the need for complementary target sites in the mRNA. These results implicate 5′ tRFs in a new mechanism of gene regulation by small RNAs in human cells. © 2013 Landes Bioscience.

Soe, KT, Zhang, YX & Zhang, LC 2013, 'Impact resistance of hybrid-fiber engineered cementitious composite panels', Composite Structures, vol. 104, pp. 320-330.
View/Download from: Publisher's site

Soe, KT, Zhang, YX & Zhang, LC 2013, 'Material properties of a new hybrid fibre-reinforced engineered cementitious composite', Construction and Building Materials, vol. 43, pp. 399-407.
View/Download from: Publisher's site

Soh, PJ, Van den Bergh, B, Xu, H, Aliakbarian, H, Farsi, S, Samal, P, Vandenbosch, GAE, Schreurs, DMM-P & Nauwelaers, BKJC 2013, 'A smart wearable textile array system for biomedical telemetry applications', IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 5, pp. 2253-2261.
View/Download from: Publisher's site

Sojoudi, A & C. Saha, S 2013, 'Shear Thinning and Shear Thickening Non- Newtonian Confined Fluid Flow over Rotating Cylinder', American Journal of Fluid Dynamics, vol. 2, no. 6, pp. 117-121.
View/Download from: Publisher's site

Sojoudi, A, Saha, SC, Gu, YT & Hossain, MA 2013, 'Steady Natural Convection of Non-Newtonian Power-Law Fluid in a Trapezoidal Enclosure', Advances in Mechanical Engineering, vol. 5, pp. 653108-653108.
View/Download from: Publisher's site
View description>>

Numerical investigation of free convection heat transfer in a differentially heated trapezoidal cavity filled with non-Newtonian Power-law fluid has been performed in this study. The left inclined surface is uniformly heated whereas the right inclined surface is maintained as uniformly cooled. The top and bottom surfaces are kept adiabatic with initially quiescent fluid inside the enclosure. Finite-volume-based commercial software FLUENT 14.5 is used to solve the governing equations. Dependency of various flow parameters of fluid flow and heat transfer is analyzed including Rayleigh number (Ra) ranging from 105 to 107, Prandtl number (Pr) from 100 to 10,000, and power-law index ( n) from 0.6 to 1.4. Outcomes have been reported in terms of isotherms, streamlines, and local Nusselt number for various Ra, Pr, n, and inclined angles. Grid sensitivity analysis is performed and numerically obtained results have been compared with those results available in the literature and were in good agreement.

Soohwan Kim & Jonghyuk Kim 2013, 'Occupancy Mapping and Surface Reconstruction Using Local Gaussian Processes With Kinect Sensors', IEEE Transactions on Cybernetics, vol. 43, no. 5, pp. 1335-1346.
View/Download from: Publisher's site

Sotomayor-Beltran, C, Sobey, C, Hessels, JWT, de Bruyn, G, Noutsos, A, Alexov, A, Anderson, J, Asgekar, A, Avruch, IM, Beck, R, Bell, ME, Bell, MR, Bentum, MJ, Bernardi, G, Best, P, Birzan, L, Bonafede, A, Breitling, F, Broderick, J, Brouw, WN, Brüggen, M, Ciardi, B, de Gasperin, F, Dettmar, R-J, van Duin, A, Duscha, S, Eislöffel, J, Falcke, H, Fallows, RA, Fender, R, Ferrari, C, Frieswijk, W, Garrett, MA, Grießmeier, J, Grit, T, Gunst, AW, Hassall, TE, Heald, G, Hoeft, M, Horneffer, A, Iacobelli, M, Juette, E, Karastergiou, A, Keane, E, Kohler, J, Kramer, M, Kondratiev, VI, Koopmans, LVE, Kuniyoshi, M, Kuper, G, van Leeuwen, J, Maat, P, Macario, G, Markoff, S, McKean, JP, Mulcahy, DD, Munk, H, Orru, E, Paas, H, Pandey-Pommier, M, Pilia, M, Pizzo, R, Polatidis, AG, Reich, W, Röttgering, H, Serylak, M, Sluman, J, Stappers, BW, Tagger, M, Tang, Y, Tasse, C, ter Veen, S, Vermeulen, R, van Weeren, RJ, Wijers, RAMJ, Wijnholds, SJ, Wise, MW, Wucknitz, O, Yatawatta, S & Zarka, P 2013, 'Calibrating high-precision Faraday rotation measurements for LOFAR and the next generation of low-frequency radio telescopes', Astronomy & Astrophysics, vol. 552, pp. A58-A58.
View/Download from: Publisher's site

Stahl, F, Gabrys, B, Gaber, MM & Berendsen, M 2013, 'An overview of interactive visual data mining techniques for knowledge discovery', WIREs Data Mining and Knowledge Discovery, vol. 3, no. 4, pp. 239-256.
View/Download from: Publisher's site
View description>>

In the past decade, the analysis of data has faced the challenge of dealing with very large and complex datasets and the real‐time generation of data. Technologies to store and access these complex and large datasets are in place. However, robust and scalable analysis technologies are needed to extract meaningful information from these datasets. The research field of Information Visualization and Visual Data Analytics addresses this need. Information visualization and data mining are often used complementary to each other. Their common goal is the extraction of meaningful information from complex and possibly large data. However, though data mining focuses on the usage of silicon hardware, visualization techniques also aim to access the powerful image‐processing capabilities of the human brain. This article highlights the research on data visualization and visual analytics techniques. Furthermore, we highlight existing visual analytics techniques, systems, and applications including a perspective on the field from the chemical process industry.This article is categorized under:Application Areas > Data Mining Software ToolsFundamental Concepts of Data and Knowledge > Knowledge RepresentationTechnologies > Visualization

Stauss, S, Mori, S, Muneoka, H, Terashima, K & Iacopi, F 2013, 'Ashing of photoresists using dielectric barrier discharge cryoplasmas', Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, vol. 31, no. 6, pp. 061202-061202.
View/Download from: Publisher's site

Steffen, M, Frye, S & Deuse, J 2013, 'Diversity learning factory', WT Werkstattstechnik, vol. 103, no. 3, pp. 233-239.
View description>>

Learning factories are innovative learning environments for education and training in Industrial Engineering. Participants create work systems in realistic production environments in order to gain practical experience and knowledge. Besides universities, this opportunity is used by manufacturing enterprises or consulting firms who also establish learning factories. Most previous publications describe individual implementation concepts. Therefore, this paper presents the morphology to compare learning factories.

Stewart, MG & Mueller, J 2013, 'Aviation Security, Risk Assessment, and Risk Aversion for Public Decisionmaking', Journal of Policy Analysis and Management, vol. 32, no. 3, pp. 615-633.
View/Download from: Publisher's site
View description>>

This paper estimates risk reductions for each layer of security designed to prevent commercial passenger airliners from being commandeered by terrorists, kept under control for some time, and then crashed into specific targets. Probabilistic methods are used to characterize the uncertainty of rates of deterrence, detection, and disruption, as well as losses. Since homeland security decisionmakers tend to be risk-averse because of the catastrophic or dire nature of the hazard or event, utility theory and Monte Carlo simulation methods are used to propagate uncertainties in calculations of net present value, expected utility, and probabilities of net benefit. We employ a 'break-even' cost-benefit analysis to determine the minimum probability of an otherwise successful attack that is required for the benefit of security measures to equal their cost. In this context, we examine specific policy options: including Improvised Physical Secondary Barriers (IPSBs) in the array of aircraft security measures, including the Federal Air Marshal Service (FAMS), and including them both. Attack probabilities need to exceed 260 percent or 2.6 attacks per year to be 90 percent sure that FAMS is cost-effective, whereas IPSBs have more than 90 percent chance of being cost-effective even if attack probabilities are as low as 6 percent per year. A risk-neutral analysis finds a policy option of adding IPSBs but not FAMS to the other measures to be preferred for all attack probabilities. However, a very risk-averse decisionmaker is 48 percent likely to prefer to retain FAMS even if the attack probability is as low as 1 percent per year-a level of risk aversion exhibited by few, if any, government agencies. Overall, it seems that, even in an analysis that biases the consideration toward the opposite conclusion, far too much may currently be spent on security measures to address the problem of airline hijacking, and many spending reductions could likely be made with little or no consequent...

Stewart, MG & Mueller, J 2013, 'Terrorism Risks and Cost‐Benefit Analysis of Aviation Security', Risk Analysis, vol. 33, no. 5, pp. 893-908.
View/Download from: Publisher's site
View description>>

We evaluate, for the U.S. case, the costs and benefits of three security measures designed to reduce the likelihood of a direct replication of the 9/11 terrorist attacks. To do so, we assess risk reduction, losses, and security costs in the context of the full set of security layers. The three measures evaluated are installed physical secondary barriers (IPSB) to restrict access to the hardened cockpit door during door transitions, the Federal Air Marshal Service (FAMS), and the Federal Flight Deck Officer (FFDO) Program. In the process, we examine an alternate policy measure: doubling the budget of the FFDO program to $44 million per year, installing IPSBs in all U.S. aircraft at a cost of $13.5 million per year, and reducing funding for FAMS by 75% to $300 million per year. A break‐even cost‐benefit analysis then finds the minimum probability of an otherwise successful attack required for the benefit of each security measures to equal its cost. We find that the IPSB is costeffective if the annual attack probability of an otherwise successful attack exceeds 0.5% or one attack every 200 years. The FFDO program is costeffective if the annual attack probability exceeds 2%. On the other hand, more than two otherwise successful attacks per year are required for FAMS to be costeffective. A policy that includes IPSBs, an increased budget for FFDOs, and a reduced budget for FAMS may be a viable policy alternative, potentially saving hundreds of millions of dollars per year with consequences for security that are, at most, negligible.

Stolar, MN, Lech, M, Sheeber, LB, Burnett, IS & Allen, NB 2013, 'Introducing Emotions to the Modeling of Intra- and Inter-Personal Influences in Parent-Adolescent Conversations', IEEE TRANSACTIONS ON AFFECTIVE COMPUTING, vol. 4, no. 4, pp. 372-385.
View/Download from: Publisher's site
View description>>

An understanding of the dynamics underlying emotional interactions between speakers is essential to the design of effective conversational strategies for interviews, mental health therapies, teaching and counseling, as well as the design of naturalistic human-machine communication systems. The present study introduces a new approach to the modeling of emotional influences during parent-adolescent conversations. The proposed dynamic influence model (DIM) estimates the joint conditional probabilities of speaker's states as a linear combination of simpler inter-and intra-speaker conditional probabilities. Contrary to the previously existing influence models (IMs), the DIM's coefficients are given not as static, constant values but as dynamically changing functions of the time delay between the current and the previous state. The speaker's states were annotated using four labels (speech with positive emotion, speech with negative emotion, emotionally neutral speech and silence with undefined emotion). Experimental results based on the audio recordings of 63 different naturalistic (not acted) parent-adolescent conversations showed that the proposed method leads to psychologically plausible observations. It was also demonstrated that the proposed DIM can achieve up to 20 percent higher accuracy of discriminating between emotional influence patterns of parents and adolescents when compared to the previously used static IM. © 2010-2012 IEEE.

Stone, A, Cowley, MJ, Valdes-Mora, F, McCloy, RA, Sergio, CM, Gallego-Ortega, D, Caldon, CE, Ormandy, CJ, Biankin, AV, Gee, JMW, Nicholson, RI, Print, CG, Clark, SJ & Musgrove, EA 2013, 'BCL-2 Hypermethylation Is a Potential Biomarker of Sensitivity to Antimitotic Chemotherapy in Endocrine-Resistant Breast Cancer', Molecular Cancer Therapeutics, vol. 12, no. 9, pp. 1874-1885.
View/Download from: Publisher's site
View description>>

Abstract Overexpression of the antiapoptotic factor BCL-2 is a frequent feature of malignant disease and is commonly associated with poor prognosis and resistance to conventional chemotherapy. In breast cancer, however, high BCL-2 expression is associated with favorable prognosis, estrogen receptor (ER) positivity, and low tumor grade, whereas low expression is included in several molecular signatures associated with resistance to endocrine therapy. In the present study, we correlate BCL-2 expression and DNA methylation profiles in human breast cancer and in multiple cell models of acquired endocrine resistance to determine whether BCL-2 hypermethylation could provide a useful biomarker of response to cytotoxic therapy. In human disease, diminished expression of BCL-2 was associated with hypermethylation of the second exon, in a region that overlapped a CpG island and an ER-binding site. Hypermethylation of this region, which occurred in 10% of primary tumors, provided a stronger predictor of patient survival (P = 0.019) when compared with gene expression (n = 522). In multiple cell models of acquired endocrine resistance, BCL-2 expression was significantly reduced in parallel with increased DNA methylation of the exon 2 region. The reduction of BCL-2 expression in endocrine-resistant cells lowered their apoptotic threshold to antimitotic agents: nocodazole, paclitaxel, and the PLK1 inhibitor BI2536. This phenomenon could be reversed with ectopic expression of BCL-2, and rescued with the BCL-2 inhibitor ABT-737. Collectively, these data imply that BCL-2 hypermethylation provides a robust biomarker of response to current and next-generation cytotoxic agents in endocrine-resistant breast cancer, which may prove beneficial in directing therapeutic strategy for patients with nonresectable, metastatic disease. Mol Cancer Ther; 12(9); 1874–85. ©2013 AACR.

Styrkarsdottir, U, Thorleifsson, G, Sulem, P, Gudbjartsson, DF, Sigurdsson, A, Jonasdottir, A, Jonasdottir, A, Oddsson, A, Helgason, A, Magnusson, OT, Walters, GB, Frigge, ML, Helgadottir, HT, Johannsdottir, H, Bergsteinsdottir, K, Ogmundsdottir, MH, Center, JR, Nguyen, TV, Eisman, JA, Christiansen, C, Steingrimsson, E, Jonasson, JG, Tryggvadottir, L, Eyjolfsson, GI, Theodors, A, Jonsson, T, Ingvarsson, T, Olafsson, I, Rafnar, T, Kong, A, Sigurdsson, G, Masson, G, Thorsteinsdottir, U & Stefansson, K 2013, 'Nonsense mutation in the LGR4 gene is associated with several human diseases and other traits', Nature, vol. 497, no. 7450, pp. 517-520.
View/Download from: Publisher's site

Su, K, Ni, B & Yu, H 2013, 'Modeling and optimization of granulation process of activated sludge in sequencing batch reactors', Biotechnology and Bioengineering, vol. 110, no. 5, pp. 1312-1322.
View/Download from: Publisher's site
View description>>

AbstractAerobic granulation is a promising process for wastewater treatment, but this granulation process is very complicated and is affected by many factors. Thus, a mathematical model to quantitatively describe such a granulation process is highly desired. In this work, by taking into account all of key steps including biomass growth, increase in particle size and density, detachment, breakage and sedimentation, an one‐dimensional mathematic model was developed to simulate the granulation process of activated sludge in a sequencing batch reactor (SBR). Discretization methodology was applied by dividing operational time, sedimentation process, size fractions and slices into discretized calculation elements. Model verification and prediction for aerobic granulation process were conducted under four different conditions. Four parameters indicative of granulation progression, including mean radius, biomass discharge ratio, total number, and bioparticle size distribution, were predicted well with the model. An optimum controlling strategy, automatically adjusted of settling time, was also proposed based on this model. Moreover, aerobic granules with a density higher than 120 g VSS/L and radius in a range of 0.4–1.0 mm were predicted to have both high settling velocity and substrate utilization rate, and the corresponding optimum operating conditions were be determined. Experimental results demonstrate that the developed model is appropriate for simulating the formation of aerobic granules in SBRs. These results are useful for designing and optimizing the cultivation and operation of aerobic granule process. Biotechnol. Bioeng. 2013; 110: 1312–1322. © 2012 Wiley Periodicals, Inc.

Su, Y, Wu, C & Oehlers, DJ 2013, 'Modelling of the concrete compressive failure mechanism', Australian Journal of Structural Engineering, vol. 14, no. 3, pp. 243-257.
View/Download from: Publisher's site
View description>>

There has been an extensive amount of research into determining the compressive stress-strain properties of concrete for design. Difficulty has arisen in quantifying the softening or descending stress-strain relationship as it has been found to depend on the size and shape of the specimen being tested as well as on the confinement and eccentricity of compressive load applied to the specimen. This difficulty has restricted the development of design rules for reinforced concrete members not only for strength but also for ductility particularly for confined members. In this paper, a meso-scale model, which divides concrete into a three phase composite material consisting of the mortar matrix, aggregate and interfacial transition zone, is used to explain and quantify the softening mechanism of concrete specimens. It is shown that this meso-scale model can both simulate the cracking patterns and deformations which are seen to occur in concrete while softening and also quantify and explain the effects of size, shape, confinement and eccentricity of load. This realistic simulation of the softening mechanism should allow a better understanding and quantification of the compressive failure mechanism of concrete which should lead to the development of better design rules particularly for confined concrete. © Institution of Engineers Australia, 2013.

Subhani, M, Li, J & Samali, B 2013, 'A comparative study of guided wave propagation in timber poles with isotropic and transversely isotropic material models', Journal of Civil Structural Health Monitoring, vol. 3, no. 2, pp. 65-79.
View/Download from: Publisher's site

Subhani, M, Li, JC, Gravenkamp, H & Samali, B 2013, 'Effect of Elastic Modulus and Poisson's Ratio on Guided Wave Dispersion Using Transversely Isotropic Material Modelling', Advanced Materials Research, vol. 778, pp. 303-311.
View/Download from: Publisher's site
View description>>

Timber poles are commonly used for telecommunication and power distribution networks, wharves or jetties, piling or as a substructure of short span bridges. Most of the available techniques currently used for non-destructive testing (NDT) of timber structures are based on one-dimensional wave theory. If it is essential to detect small sized damage, it becomes necessary to consider guided wave (GW) propagation as the behaviour of different propagating modes cannot be represented by one-dimensional approximations. However, due to the orthotropic material properties of timber, the modelling of guided waves can be complex. No analytical solution can be found for plotting dispersion curves for orthotropic thick cylindrical waveguides even though very few literatures can be found on the theory of GW for anisotropic cylindrical waveguide. In addition, purely numerical approaches are available for solving these curves. In this paper, dispersion curves for orthotropic cylinders are computed using the scaled boundary finite element method (SBFEM) and compared with an isotropic material model to indicate the importance of considering timber as an anisotropic material. Moreover, some simplification is made on orthotropic behaviour of timber to make it transversely isotropic due to the fact that, analytical approaches for transversely isotropic cylinder are widely available in the literature. Also, the applicability of considering timber as a transversely isotropic material is discussed. As an orthotropic material, most material testing results of timber found in the literature include 9 elastic constants (three elastic moduli and six Poisson's ratios), hence it is essential to select the appropriate material properties for transversely isotropic material which includes only 5 elastic constants. Therefore, comparison between orthotropic and transversely isotropic material model is also presented in this article to reveal the effect of elastic moduli and Pois...

Sun, J & Buys, N 2013, 'Effectiveness of a participative community singing program to improve health behaviors and increase physical activity in Australian Aboriginal and Torres Strait Islander people', International Journal on Disability and Human Development, vol. 12, no. 3.
View/Download from: Publisher's site
View description>>

AbstractAboriginal and Torres Strait Islander individuals continue to experience greater levels of chronic disease than the general Australian population. Evidence suggests that increased sedentary behaviors compared with the traditional healthy and active lifestyles of this population have contributed to this situation. This investigation aimed to examine the health benefits of a community-based singing activity intervention on chronic disease among Aboriginal and Torres Strait Islander Australians.From 2010 to 2011, 291 Aboriginal and Torres Strait Islander people, from Queensland, Australia, were recruited through five communities to participate in a 1-year community singing program. Participants completed a survey, in the pre- and post-intervention phases of the study, that measured social connectedness, health behavior (e.g., smoking, alcohol consumption), frequency of exercise and art activities, and medication use.Improvements in health behavior were observed for both male and female participants with chronic disease of all age groups in the community singing program. Improvements in the male and female participants included decreased social loneliness and reduced smoking behavior, increased social support, and increased participation in exercise and art activities.The participative community singing program was successful in improving the health status and increasing physical activity among Aboriginal and Torres Strait Islander adults.

Sun, J & Buys, N 2013, 'Participatory community singing program to enhance quality of life and social and emotional well-being in Aboriginal and Torres Strait Islander Australians with chronic diseases', International Journal on Disability and Human Development, vol. 12, no. 3.
View/Download from: Publisher's site
View description>>

AbstractThe objective of this study was to assess the effectiveness of a 12-month community singing program on quality of life (QoL) using survey methods.We prospectively collected data on Aboriginal and Torres Strait Islander people with chronic diseases involved in a participatory community singing program. Aboriginal and Torres Strait Islander people with a chronic disease and an average age of 51 years (range, 18–85 years) self-selected to participate in the singing group (n=45), which included a weekly singing rehearsal and a monthly performance. There were 27 people in the control group. We compared the intervention and control groups by evaluating the QoL, social and emotional well-being, health behaviors, social isolation, and loneliness at a baseline and at 12 months.At 12 months, those who participated in the singing program showed a significant increase in QoL, reduced stress, and a significant reduction in social isolation and loneliness compared with patients in the control group.The community singing program may enhance social and emotional well-being and QoL in Aboriginal and Torres Strait Islander people with chronic diseases, and the singing program is a viable health promotion intervention program for this population.

Sun, J & Buys, NJ 2013, 'Improving Aboriginal and Torres Strait Islander Australians’ well-being using participatory community singing approach', International Journal on Disability and Human Development, vol. 12, no. 3.
View/Download from: Publisher's site
View description>>

AbstractThere is increasing international interest in the idea that well-being and health are related to resilience. Participative community singing is beneficial for well-being not only in people who are free from health problems, but especially for those whose physical and mental health is compromised. This study examined the development of five Aboriginal and Torres Strait Islander singing groups and the benefits relating to promoting resilience and ultimately preventing chronic disease in this population. Mixed methods, including both quantitative and qualitative approaches, were used. Questionnaires were administered to collect data on chronic life stresses, resilience, social support and social connectedness. Focus group interviews were conducted to obtain data on the participants’ and stakeholders’ perceptions of the impact of the singing groups. Multivariate analysis of variance was used to test the effectiveness of the intervention program on improving resilience at both the individual and the community levels. Structural equation modelling was used to analyse the pathways from the benefits gained from the singing program to the prevention of chronic disease. The results suggested that the singing groups served multiple functions, which are underpinned by social ecological resilience mechanisms to promote self-esteem, learning and education and confidence at the individual level, as well as community connectedness, reduction of loneliness and promoting social support from family, community and the social context such as support from community-controlled health services, and ultimately preventing chronic disease.

Sun, J, Buys, N & Merrick, J 2013, 'Introduction: Health promotion', Health Promotion: Strengthening Positive Health and Preventing Disease, pp. xvii-xviii.

Sun, Y, Guo, Y, Ge, Y, Lu, S, Zhou, J & Dutkiewicz, E 2013, 'Improving the Transmission Efficiency by Considering Non-Cooperation in Ad Hoc Networks', The Computer Journal, vol. 56, no. 8, pp. 1034-1042.
View/Download from: Publisher's site

Sundramoorthy, AK, Mesgari, S, Wang, J, Kumar, R, Sk., MA, Yeap, SH, Zhang, Q, Sze, SK, Lim, KH & Chan-Park, MB 2013, 'Scalable and Effective Enrichment of Semiconducting Single-Walled Carbon Nanotubes by a Dual Selective Naphthalene-Based Azo Dispersant', Journal of the American Chemical Society, vol. 135, no. 15, pp. 5569-5581.
View/Download from: Publisher's site
View description>>

Semiconducting single-walled carbon nanotubes (s-SWNTs) have emerged as a promising class of electronic materials, but the metallic (m)-SWNTs present in all as-synthesized nanotube samples must be removed for many applications. A high selectivity and high yield separation method has remained elusive. A separation process based on selective chemistry appears to be an attractive route since it is usually relatively simple, but more effective chemicals are needed. Here we demonstrate the first example of a new class of dual selective compounds based on polycyclic aromatic azo compounds, specifically Direct Blue 71 (I), for high-purity separation of s-SWNTs at high yield. Highly enriched (∼93% purity) s-SWNTs are produced through the simple process of standing arc-discharge SWNTs with I followed by centrifugation. The s-SWNTs total yield is up to 41%, the highest yet reported for a solution-based separation technique that demonstrates applicability in actual transistors. 91% of transistor devices fabricated with these s-SWNTs exhibited on/off ratios of 10 to 10 with the best devices showing mobility as high as 21.8 cm /V s with on/off ratio of 10 . Raman and X-ray photoelectron spectroscopic shifts and ultraviolet-visible-near-infrared (UV-vis-NIR) show that I preferentially complexes with s-SWNTs and preferentially suspends them. Preferential reaction of naphthyl radicals (generated from I with ultrasonication) with m-SWNTs is confirmed by changes in the D-band in the Raman spectroscopy, matrix-assisted desorption-ionization time-of-flight mass spectrometry (MALDI-TOF-MS), and molecular simulation results. The high selectivity of I stems from its unique dual action as both a selective dispersion agent and the generator of radicals which preferentially attack unwanted metallic species. © 2013 American Chemical Society. 3 5 2 4

Surawski, NC, Miljevic, B, Bodisco, TA, Brown, RJ, Ristovski, ZD & Ayoko, GA 2013, 'Application of Multicriteria Decision Making Methods to Compression Ignition Engine Efficiency and Gaseous, Particulate, and Greenhouse Gas Emissions', ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 47, no. 4, pp. 1904-1912.
View/Download from: Publisher's site
View description>>

Compression ignition (CI) engine design is subject to many constraints, which present a multicriteria optimization problem that the engine researcher must solve. In particular, the modern CI engine must not only be efficient but must also deliver low gaseous, particulate, and life cycle greenhouse gas emissions so that its impact on urban air quality, human health, and global warming is minimized. Consequently, this study undertakes a multicriteria analysis, which seeks to identify alternative fuels, injection technologies, and combustion strategies that could potentially satisfy these CI engine design constraints. Three data sets are analyzed with the Preference Ranking Organization Method for Enrichment Evaluations and Geometrical Analysis for Interactive Aid (PROMETHEE-GAIA) algorithm to explore the impact of (1) an ethanol fumigation system, (2) alternative fuels (20% biodiesel and synthetic diesel) and alternative injection technologies (mechanical direct injection and common rail injection), and (3) various biodiesel fuels made from 3 feedstocks (i.e., soy, tallow, and canola) tested at several blend percentages (20-100%) on the resulting emissions and efficiency profile of the various test engines. The results show that moderate ethanol substitutions (∼20% by energy) at moderate load, high percentage soy blends (60-100%), and alternative fuels (biodiesel and synthetic diesel) provide an efficiency and emissions profile that yields the most 'preferred' solutions to this multicriteria engine design problem. Further research is, however, required to reduce reactive oxygen species (ROS) emissions with alternative fuels and to deliver technologies that do not significantly reduce the median diameter of particle emissions. © 2013 American Chemical Society.

Sutton, GJ, Liu, RP & Collings, IB 2013, 'Modelling IEEE 802.11 DCF Heterogeneous Networks with Rayleigh Fading and Capture', IEEE Transactions on Communications, vol. 61, no. 8, pp. 3336-3348.
View/Download from: Publisher's site
View description>>

In practical radio transmissions, bit error and channel capture are two dominating factors that affect wireless network performance. Previous models have omitted the interaction between bit error and channel capture. We present a homogeneous-network performance-prediction model for a Rayleigh fading channel that incorporates both the capture effect and transmission error into a 3-D Markov Chain. We accurately characterise the interaction between packet error and capture by incorporating them both into the model of the receiver operations. We show how the model can be solved efficiently. The model provides quality of service measures, including packet delay and loss, which are difficult to achieve with other models. Simulation results confirm that our 3-D model accurately predicts the performance for practical SNRs and receiver sensitivities. We demonstrate that our model can be directly applied to call admission control of Voice over IP service with a QoS guarantee in a WiFi network. The model is then extended to heterogeneous networks, where different stations have different packet arrival rates and packet sizes. © 1972-2012 IEEE.

Tabatabaiefar, SHR, Fatahi, B & Samali, B 2013, 'Lateral seismic response of building frames considering dynamic soil-structure interaction effects', STRUCTURAL ENGINEERING AND MECHANICS, vol. 45, no. 3, pp. 311-321.
View description>>

In this study, to have a better judgment on the structural performance, the effects of dynamic Soil-Structure Interaction (SSI) on seismic behaviour and lateral structural response of mid-rise moment resisting building frames are studied using Finite Difference Method. Three types of mid-rise structures, including 5, 10, and 15 storey buildings are selected in conjunction with three soil types with the shear wave velocities less than 600m/s, representing soil classes Ce, De and Ee, according to Australian Standard AS 1170.4. The above mentioned frames have been analysed under two different boundary conditions: (i) fixed-base (no soil-structure interaction), and (ii) flexible-base (considering soil-structure interaction). The results of the analyses in terms of structural lateral displacements and drifts for the above mentioned boundary conditions have been compared and discussed. It is concluded that the dynamic soil-structure interaction plays a considerable role in seismic behaviour of mid-rise building frames including substantial increase in the lateral deflections and inter-storey drifts and changing the performance level of the structures from life safe to near collapse or total collapse. Thus, considering soil-structure interaction effects in the seismic design of mid-rise moment resisting building frames, particularly when resting on soft soil deposit, is essential.

Tabatabaiefar, SHR, Fatahi, B & Samali, B 2013, 'Seismic Behavior of Building Frames Considering Dynamic Soil-Structure Interaction', INTERNATIONAL JOURNAL OF GEOMECHANICS, vol. 13, no. 4, pp. 409-420.
View/Download from: Publisher's site
View description>>

The seismic excitation experienced by structures is a function of the earthquake source, travel path effects, local site effects, and soilstructure interaction (SSI) influences. The result of the first three of these factors is referred to as free-field ground motion. The structural response to free-field motion is influenced by the SSI. In particular, accelerations within structures are affected by the flexibility of the foundation support and variations between the foundation and free-field motions. Consequently, an accurate assessment of inertial forces and displacements in structures can require a rational treatment of SSI effects. In the current study, to depict these effects on the seismic response of moment-resisting building frames, a 10-story moment-resisting building frame resting on a shallow foundation was selected in conjunction with three soil types with shear-wave velocities of less than 600 m/s, representing Soil Classes Ce, De, and Ee according to an existing Australian Standard. The structural sections were designed after applying dynamic nonlinear time-history analysis, based on both the elastic method, and inelastic procedure using the elastic-perfectly plastic behavior of the structural elements. The frame sections were modeled and analyzed using the finite-difference method andthe FLAC 2D software under two different boundary conditions: (1) fixed-base (no SSI) and (2) considering the SSI. Fully nonlinear dynamic analysis under the influence of various earthquake records was conducted and the results of the two different cases for elastic and inelastic behavior of the structuralmodel were extracted, compared, and discussed. The results indicate that the performance level of themodel resting on Soil Class Ce does not change substantially and remains in the life safe level while the performance level of themodel resting on Soil Classes De and Ee substantially increase from the life safe level to near collapse for both elastic and ine...

Tadkaew, N, McDonald, J, Khan, SJ & Nghiem, LD 2013, 'Effects of salinity on the removal of trace organic contaminants by membrane bioreactor treatment for water reuse', Desalination and Water Treatment, vol. 51, no. 25-27, pp. 5164-5171.
View/Download from: Publisher's site

Tafavogh, S, Navarro, KF, Catchpoole, DR & Kennedy, PJ 2013, 'Non-parametric and integrated framework for segmenting and counting neuroblastic cells within neuroblastoma tumor images', MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, vol. 51, no. 6, pp. 645-655.
View/Download from: Publisher's site
View description>>

Neuroblastoma is a malignant tumor and a cancer in childhood that derives from the neural crest. The number of neuroblastic cells within the tumor provides significant prognostic information for pathologists. An enormous number of neuroblastic cells makes the process of counting tedious and error-prone. We propose a user interaction-independent framework that segments cellular regions, splits the overlapping cells and counts the total number of single neuroblastic cells. Our novel segmentation algorithm regards an image as a feature space constructed by joint spatial-intensity features of color pixels. It clusters the pixels within the feature space using mean-shift and then partitions the image into multiple tiles. We propose a novel color analysis approach to select the tiles with similar intensity to the cellular regions. The selected tiles contain a mixture of single and overlapping cells. We therefore also propose a cell counting method to analyse morphology of the cells and discriminate between overlapping and single cells. Ultimately, we apply watershed to split overlapping cells. The results have been evaluated by a pathologist. Our segmentation algorithm was compared against adaptive thresholding. Our cell counting algorithm was compared with two state of the art algorithms. The overall cell counting accuracy of the system is 87.65 %. © 2013 International Federation for Medical and Biological Engineering.

Tahan Latibari, S, Mehrali, M, Mehrali, M, Indra Mahlia, TM & Cornelis Metselaar, HS 2013, 'Synthesis, characterization and thermal properties of nanoencapsulated phase change materials via sol–gel method', Energy, vol. 61, pp. 664-672.
View/Download from: Publisher's site

Talatahari, S, Kheirollahi, M, Farahmandpour, C & Gandomi, AH 2013, 'A multi-stage particle swarm for optimum design of truss structures', Neural Computing and Applications, vol. 23, no. 5, pp. 1297-1309.
View/Download from: Publisher's site

Tan, M, Tsang, IW & Wang, L 2013, 'Minimax Sparse Logistic Regression for Very High-Dimensional Feature Selection', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 10, pp. 1609-1622.
View/Download from: Publisher's site
View description>>

Because of the strong convexity and probabilistic underpinnings, logistic regression (LR) is widely used in many real-world applications. However, in many problems, such as bioinformatics, choosing a small subset of features with the most discriminative power are desirable for interpreting the prediction model, robust predictions or deeper analysis. To achieve a sparse solution with respect to input features, many sparse LR models are proposed. However, it is still challenging for them to efficiently obtain unbiased sparse solutions to very high-dimensional problems (e.g., identifying the most discriminative subset from millions of features). In this paper, we propose a new minimax sparse LR model for very high-dimensional feature selections, which can be efficiently solved by a cutting plane algorithm. To solve the resultant nonsmooth minimax subproblems, a smoothing coordinate descent method is presented. Numerical issues and convergence rate of this method are carefully studied. Experimental results on several synthetic and real-world datasets show that the proposed method can obtain better prediction accuracy with the same number of selected features and has better or competitive scalability on very high-dimensional problems compared with the baseline methods, including the l1-regularized LR.

Tan, VYF & Tomamichel, M 2013, 'The Third-Order Term in the Normal Approximation for the AWGN Channel', IEEE Trans. Inf. Theory, vol. 61, no. 5, pp. 2430-2438.
View/Download from: Publisher's site
View description>>

This paper shows that, under the average error probability formalism, thethird-order term in the normal approximation for the additive white Gaussiannoise channel with a maximal or equal power constraint is at least $\frac{1}{2}\log n + O(1)$. This matches the upper bound derived byPolyanskiy-Poor-Verd\'{u} (2010).

Tang, J, Chen, L, King, I & Wang, J 2013, 'Introduction to Special section on Large-scale Data Mining', Data & Knowledge Engineering, vol. 87, pp. 355-356.
View/Download from: Publisher's site

Tangaramvong, S, Tin-Loi, F, Wu, D & Gao, W 2013, 'Mathematical programming approaches for obtaining sharp collapse load bounds in interval limit analysis', Computers & Structures, vol. 125, pp. 114-126.
View/Download from: Publisher's site
View description>>

The paper presents novel mathematical programming approaches for interval limit analysis that are guaranteed to furnish sharp (extreme) bounds to the collapse load of structures subjected to uncertain but bounded parameters. The formulation is cast as a pair of linear programs with interval coefficients. We discuss when sharp collapse load bounds occur when the interval parameters are at the extreme limits of their respective intervals. A mixed 0-1 programming approach is first proposed to compute the minimum collapse limit, and, more importantly, we then develop a pair of robust and efficient nonlinear programming schemes that capture maximum collapse loads in one case and minimum collapse loads in the other. © 2013 Elsevier Ltd. All rights reserved.

Tao, M, Li, X & Wu, C 2013, '3D numerical model for dynamic loading-induced multiple fracture zones around underground cavity faces', Computers and Geotechnics, vol. 54, pp. 33-45.
View/Download from: Publisher's site

Tao, X-F, Hou, Y-Z, Wang, K-D, He, H-Y & Guo, YJ 2013, 'GPP-Based Soft Base Station Designing and Optimization', Journal of Computer Science and Technology, vol. 28, no. 3, pp. 420-428.
View/Download from: Publisher's site
View description>>

It is generally acknowledged that mobile communication base stations are composed of hardware components such as Field Programming Gate Array (FPGA), Digital Signal Processor (DSP), which promise reliable and fluent services for the mobile users. However, with the increasing demand for energy-efficiency, approaches of low power-consumption and high-flexibility are needed urgently. In this circumstance, General Purpose Processor (GPP) attracts people’s attention for its low-cost and flexibility. Benefited from the development of modern GPP in multi-core, Single Instruction Multiple Data (SIMD) instructions, larger cache, etc., GPPs are capable of performing high-density digital processing. In this paper, we compare several software-defined radio (SDR) prototypes and propose the general architecture of GPP-based soft base stations. Then, the schematic design of resource allocation and algorithm optimization in soft base station implementation are studied. As an application example, a prototype of GPP-based soft base station referring to the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is realized and evaluated. To the best of our knowledge, it is the first Soft-LTE prototype ever reported. In the end, we evaluate the timing performance of the LTE soft base station and a packet loss ratio of less than 0.003 is obtained. © 2013 Springer Science+Business Media New York & Science Press, China.

Tapson, J, Cohen, G, Afshar, S, Stiefel, K, Buskila, Y, Wang, R, Hamilton, TJ & Schaik, AV 2013, 'Synthesis of neural networks for spatio-temporal spike pattern recognition and processing', Frontiers in Neuroscience, no. 7 AUG.
View/Download from: Publisher's site
View description>>

The advent of large scale neural computational platforms has highlighted thelack of algorithms for synthesis of neural structures to perform predefinedcognitive tasks. The Neural Engineering Framework offers one such synthesis,but it is most effective for a spike rate representation of neural information,and it requires a large number of neurons to implement simple functions. Wedescribe a neural network synthesis method that generates synaptic connectivityfor neurons which process time-encoded neural signals, and which makes verysparse use of neurons. The method allows the user to specify, arbitrarily,neuronal characteristics such as axonal and dendritic delays, and synaptictransfer functions, and then solves for the optimal input-output relationshipusing computed dendritic weights. The method may be used for batch or onlinelearning and has an extremely fast optimization process. We demonstrate its usein generating a network to recognize speech which is sparsely encoded as spiketimes.

Tasouji, N, Nourinia, J, Ghobadi, C & Tofigh, F 2013, 'A Novel Printed UWB Slot Antenna With Reconfigurable Band-Notch Characteristics', IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 922-925.
View/Download from: Publisher's site

Tavares, NAC & Vale, S 2013, 'A Model Driven Approach for the Development of Semantic RESTful Web Services', Proceedings of International Conference on Information Integration and Web-based Applications & Services, vol. 1, pp. 290-299.
View/Download from: Publisher's site
View description>>

Several metamodels have been proposed in the software engineering literature recently. For practical usage, it is important to ensure that these metamodels can be used in an interoperable fashion. In this paper we present an approach as a part of our PhD research in the same direction. Our methodology is based on the study of analogous characteristics among metamodels, ontologies and schemas. We have adopted ontology merging and schema matching techniques and apply them to the domain of metamodels to assist in creating interoperable metamodels. This methodology is applied and presented here with an illustrative example in which we show the results of merging two of the OMG metamodels: the Organization Structure Metamodel (OSM) and the Business Process Modelling Notation (BPMN).

Tehrany, MS, Pradhan, B & Jebur, MN 2013, 'Remote Sensing Data Reveals Eco-Environmental Changes in Urban Areas of Klang Valley, Malaysia: Contribution from Object Based Analysis', Journal of the Indian Society of Remote Sensing, vol. 41, no. 4, pp. 981-991.
View/Download from: Publisher's site

Tehrany, MS, Pradhan, B & Jebur, MN 2013, 'Spatial prediction of flood susceptible areas using rule based decision tree (DT) and a novel ensemble bivariate and multivariate statistical models in GIS', Journal of Hydrology, vol. 504, pp. 69-79.
View/Download from: Publisher's site

ten Bhomer, M & van den Hoven, E 2013, 'Interaction design for supporting communication between Chinese sojourners', PERSONAL AND UBIQUITOUS COMPUTING, vol. 17, no. 1, pp. 145-157.
View/Download from: Publisher's site
View description>>

In our global village, distance is not a barrier anymore for traveling. People experience new cultures and face accompanying difficulties in order to live anywhere. Social support can help these sojourners to cope with difficulties, such as culture shock. In this paper, we investigate how computer-mediated communication (CMC) tools can facilitate social support when living physically separated from loved-ones in different cultures. The goal is to understand the design considerations necessary to design new CMC tools. We studied communication practices of Chinese sojourners living in the Netherlands and the use of a technology probe with a novel video communication system. These results led to recommendations which can help designers to design interactive communication tools that facilitate communication across cultures. We conclude the paper with an interactive communication device called Circadian, which was designed based on these recommendations. We experienced the design recommendations to be abstract enough to leave space for creativity while providing a set of clear requirements which we used to base design decisions upon.

Teng, PSP, Leong, KF, Kong, PW, Halkon, BJ & Huang, PY 2013, 'The use of rapid prototyping in the design of a customised ankle brace structure for ACL injury risk reduction', Virtual and Physical Prototyping, vol. 8, no. 4, pp. 241-247.
View/Download from: Publisher's site
View description>>

Rapid prototyping, or additive manufacturing, is becoming more useful in creating functional prototypes, especially when customisation is required. This paper explores the use of three-dimensional (3D) printing in designing a customised ankle brace structure for anterior cruciate ligament (ACL) injury risk reduction. A new process is proposed to obtain ankle flexion angles and the corresponding foot surface strain associated with high ACL injury risks through motion analysis. This data is used in the design of the customised ankle brace structure and printed using rapid prototyping. One customised ankle brace structure was printed and tested to demonstrate this proposed framework. The ankle flexion range of motion (ROM) was significantly reduced in the high-risk ankle positions with the ankle brace structure. Rapid prototyping could thus be used to design customised ankle brace structures and this is useful in reducing fabrication time and complexity of customisation. © 2013 Taylor & Francis.

THAKUR, PK, VINOD, JS & INDRARATNA, B 2013, 'Effect of confining pressure and frequency on the deformation of ballast', Géotechnique, vol. 63, no. 9, pp. 786-790.
View/Download from: Publisher's site
View description>>

Increasing the speed and frequency of trains with the same static axle weight imparts higher dynamic axle loads more frequently. When this occurs on existing track which has not been designed for such loading there can be increased rates of ballast degradation, characterised by unacceptable deformation and lateral spread, leading to more frequent requirements for track maintenance. Recent studies carried out at the University of Wollongong highlighted that confining pressure and frequency have a significant influence on the permanent deformation and degradation of ballast. However, confinement required to keep the deformation and degradation of the ballasted track to an acceptable limit will depend on the train speed (frequency). In this context, a series of cyclic triaxial tests was conducted on latite basalt samples having an initial confining pressure of 120 kPa. After every 25 000 cycles, the confining pressure was decreased in steps to simulate the drop of confining pressure during heavy traffic. This test procedure was adopted to replicate the influence of train speed on the stability of ballast. Test results indicated that both the frequency and confining pressure have a significant influence on the permanent deformation of ballast. Resilient modulus is found to increase with an increase in confining pressure and number of cycles, but to decrease with increasing frequency. The results also showed that the ballast layer requires a minimum level of confinement for preventing an excessive amount of track deformation. An empirical equation is formulated to determine the required confining pressure and resilient modulus of the ballast layer for an allowable limit of track deformation at a given train speed.

Thalakotuna, DNP, Esselle, KP, Matekovits, L, Heimlich, M & Hay, SG 2013, 'Changing the Electromagnetic Bandgap and Stopbands in a Multistate Periodic Circuit', Microwave and Optical Technology Letters, vol. 55, no. 8, pp. 1871-1874.
View/Download from: Publisher's site
View description>>

ABSTRACTChanging the electromagnetic bandgaps (EBGs) and hence the stopbands in a multistate periodic microwave circuit is investigated experimentally. The state of the prototype circuit, consisting of 24 unit cells, is changed by closing or opening gaps in selected unit cells. This varies the periodic loading along the circuit and hence the EBG. In most states, the circuit behaves as a bandstop filter, and its stopband width and location are determined by the circuit state. Experimental results confirm that the first stopband width can be as large as 63% (at 4.92 GHz) or can be absent. The EBG leads to excellent isolation around 40 dB in the stopbands. Sharp roll‐off between passbands and stopbands (upto 120 dB/octave) and small length compared to microstrip filters with similar cut‐off and roll‐off characteristics are other advantages of the proposed platform. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1871–1874, 2013

That, ND, Nam, PT & Ha, QP 2013, 'Reachable Set Bounding for Linear Discrete-Time Systems with Delays and Bounded Disturbances', JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, vol. 157, no. 1, pp. 96-107.
View/Download from: Publisher's site
View description>>

This paper addresses the problem of reachable set bounding for linear discrete-time systems that are subject to state delay and bounded disturbances. Based on the Lyapunov method, a sufficient condition for the existence of ellipsoid-based bounds of reachable sets of a linear uncertain discrete system is derived in terms of matrix inequalities. Here, a new idea is to minimize the projection distances of the ellipsoids on each axis with different exponential convergence rates, instead of minimization of their radius with a single exponential rate. A smaller bound can thus be obtained from the intersection of these ellipsoids. A numerical example is given to illustrate the effectiveness of the proposed approach. © 2012 Springer Science+Business Media New York.

Thollander, P, Backlund, S, Trianni, A & Cagno, E 2013, 'Beyond barriers – A case study on driving forces for improved energy efficiency in the foundry industries in Finland, France, Germany, Italy, Poland, Spain, and Sweden', Applied Energy, vol. 111, pp. 636-643.
View/Download from: Publisher's site

Thomas, D, Ding, G & Crews, K 2013, 'Sustainable timber use in the Australian housing market: Are consumers willing to pay the price', International Journal for Housing Science and Its Applications, vol. 37, no. 3, pp. 187-196.
View description>>

A large proportion of traditional Australian homes contained timber floors and timber exterior cladding until the advent of the standard concrete slab/brick veneer house. Up to 95% of new homes are built by project home companies and the majority of these contain an external envelope consisting of concrete flooring, clay brick walls and concrete tile or steel sheet roofing. This design is currently driven by consumer's expectation of low cost, durable homes that are completed within restricted time limits. There is now a price premium on bespoke housing projects that differ materially or otherwise from a limited set of designs offered by project home firms. The adoption of concrete and brick homes originated from a perceived advantage of longevity, low maintenance and thermal comfort. Innovation in wood treatments, wood protection and insulation has provided solutions to these issues so that timber is now a viable option with added benefits such as environmental sustainability and erection speed. Australian consumers have a growing awareness and desire to live in a way that is sustainable and are making choices that reflect this attitude. This has been demonstrated through the high adoption rate of recent government-supported schemes such as subsidized insulation and solar panel installation. This paper aims at investigating homeowner's perception of timber as a sustainable building product, the desire of homeowners to use sustainable building products, and the willingness of homeowners to pay a premium to live sustainably. This paper highlights Australian homeowners reluctance to use the most sustainable building materials even when they are willing to pay for a more environmentally sustainable home. This paper presents the results of a questionnaire survey to homeowners in the city of Sydney, New South Wales, Australia and some strategies on how to increase the use of timber in new housing projects in Australia. © 2013 IAHS.

Thomas, PS, Guerbois, J-P & Smallwood, A 2013, 'Low temperature DSC characterisation of water in opal', Journal of Thermal Analysis and Calorimetry, vol. 113, no. 3, pp. 1255-1260.
View/Download from: Publisher's site
View description>>

A low temperature (-60 to +105 A degrees C) DSC characterisation of opal was carried out to determine the proportion of crystallisable water and to estimate the cavity size in which the crystallisable water is contained. Circa 10 % of the molecular water

Tien Bui, D, Pradhan, B, Lofman, O, Revhaug, I & Dick, ØB 2013, 'Regional prediction of landslide hazard using probability analysis of intense rainfall in the Hoa Binh province, Vietnam', Natural Hazards, vol. 66, no. 2, pp. 707-730.
View/Download from: Publisher's site

Tijing, L, Ruelo, M, Park, C-H, Amarjargal, A, Kim, H, Pant, H, Lee, D-H & Kim, C 2013, 'Efficacy of zinc and tourmaline in mitigating corrosion of carbon steel in non-flow mode', Chemical Papers, vol. 67, no. 10, pp. 1304-1310.
View/Download from: Publisher's site
View description>>

AbstractLaboratory corrosion immersion tests were carried out to investigate the effectiveness of a physical water treatment (PWT) using zinc and ceramic tourmaline-based catalytic materials for the control of carbon steel corrosion in acidic still water (i.e., pH 4.5–5). The tests were carried out at different water temperatures over 168 h. Our results showed a maximum of 22 % reduction in the corrosion rate using PWT in comparison with the control case. Furthermore, the corrosion products depicted more agglomerated particles after the PWT treatment. In both cases, differences were observed in the crystal structures, showing in general lower corrosion activity when PWT was used. The present results could find potential applications in water distribution systems and where metallic materials are exposed to stagnant acidic water.

Tijing, LD, Amarjargal, A, Jiang, Z, Ruelo, MTG, Park, C-H, Pant, HR, Kim, D-W, Lee, DH & Kim, CS 2013, 'Antibacterial tourmaline nanoparticles/polyurethane hybrid mat decorated with silver nanoparticles prepared by electrospinning and UV photoreduction', Current Applied Physics, vol. 13, no. 1, pp. 205-210.
View/Download from: Publisher's site

Tijing, LD, Choi, W, Jiang, Z, Amarjargal, A, Park, C-H, Pant, HR, Im, I-T & Kim, CS 2013, 'Two-nozzle electrospinning of (MWNT/PU)/PU nanofibrous composite mat with improved mechanical and thermal properties', Current Applied Physics, vol. 13, no. 7, pp. 1247-1255.
View/Download from: Publisher's site

Tijing, LD, Park, C-H, Choi, WL, Ruelo, MTG, Amarjargal, A, Pant, HR, Im, I-T & Kim, CS 2013, 'Characterization and mechanical performance comparison of multiwalled carbon nanotube/polyurethane composites fabricated by electrospinning and solution casting', Composites Part B: Engineering, vol. 44, no. 1, pp. 613-619.
View/Download from: Publisher's site
View description>>

Multiwalled carbon nanotube/polyurethane (MWNT/PU) composites were prepared by electrospinning and solution casting. The morphological and thermal properties, and mechanical performance of the nanofiber and film composites were characterized and compared. The tensile strength of neat PU film was 9-fold higher than that of neat PU nanofibrous mat. The incorporation of MWNTs increased the tensile strength and modulus of the composite nanofibers by 69% and 140%, respectively, and 62% and 78%, respectively for composite films. The MWNT/PU composites showed an improved thermal degradation behavior, with the incorporation of low MWNT content in the composites.

Tijing, LD, Park, C-H, Kang, S-J, Amarjargal, A, Kim, T-H, Pant, HR, Kim, HJ, Lee, DH & Kim, CS 2013, 'Improved mechanical properties of solution-cast silicone film reinforced with electrospun polyurethane nanofiber containing carbon nanotubes', Applied Surface Science, vol. 264, pp. 453-458.
View/Download from: Publisher's site

Tingay, SJ, Kaplan, DL, McKinley, B, Briggs, F, Wayth, RB, Hurley-Walker, N, Kennewell, J, Smith, C, Zhang, K, Arcus, W, Bhat, NDR, Emrich, D, Herne, D, Kudryavtseva, N, Lynch, M, Ord, SM, Waterson, M, Barnes, DG, Bell, M, Gaensler, BM, Lenc, E, Bernardi, G, Greenhill, LJ, Kasper, JC, Bowman, JD, Jacobs, D, Bunton, JD, deSouza, L, Koenig, R, Pathikulangara, J, Stevens, J, Cappallo, RJ, Corey, BE, Kincaid, BB, Kratzenberg, E, Lonsdale, CJ, McWhirter, SR, Rogers, AEE, Salah, JE, Whitney, AR, Deshpande, A, Prabu, T, Udaya Shankar, N, Srivani, KS, Subrahmanyan, R, Ewall-Wice, A, Feng, L, Goeke, R, Morgan, E, Remillard, RA, Williams, CL, Hazelton, BJ, Morales, MF, Johnston-Hollitt, M, Mitchell, DA, Procopio, P, Riding, J, Webster, RL, Wyithe, JSB, Oberoi, D, Roshi, A, Sault, RJ & Williams, A 2013, 'ON THE DETECTION AND TRACKING OF SPACE DEBRIS USING THE MURCHISON WIDEFIELD ARRAY. I. SIMULATIONS AND TEST OBSERVATIONS DEMONSTRATE FEASIBILITY', The Astronomical Journal, vol. 146, no. 4, pp. 103-103.
View/Download from: Publisher's site

Tomamichel, M & Tan, VYF 2013, 'Second-Order Asymptotics for the Classical Capacity of Image-Additive Quantum Channels', Communication in Mathematical Physics, vol. 338, no. 1, pp. 103-137.
View/Download from: Publisher's site
View description>>

We study non-asymptotic fundamental limits for transmitting classicalinformation over memoryless quantum channels, i.e. we investigate the amount ofclassical information that can be transmitted when a quantum channel is used afinite number of times and a fixed, non-vanishing average error is permissible.We consider the classical capacity of quantum channels that are image-additive,including all classical to quantum channels, as well as the product statecapacity of arbitrary quantum channels. In both cases we show that thenon-asymptotic fundamental limit admits a second-order approximation thatillustrates the speed at which the rate of optimal codes converges to theHolevo capacity as the blocklength tends to infinity. The behavior is governedby a new channel parameter, called channel dispersion, for which we provide ageometrical interpretation.

Tomamichel, M & Tan, VYF 2013, 'Second-Order Coding Rates for Channels with State', IEEE Trans. Inf. Theory, vol. 60, no. 8, pp. 4427-4448.
View/Download from: Publisher's site
View description>>

We study the performance limits of state-dependent discrete memorylesschannels with a discrete state available at both the encoder and the decoder.We establish the epsilon-capacity as well as necessary and sufficientconditions for the strong converse property for such channels when the sequenceof channel states is not necessarily stationary, memoryless or ergodic. We thenseek a finer characterization of these capacities in terms of second-ordercoding rates. The general results are supplemented by several examplesincluding i.i.d. and Markov states and mixed channels.

Tomamichel, M, Berta, M & Hayashi, M 2013, 'Relating different quantum generalizations of the conditional Renyi entropy', J. Math. Phys. 55 (8), 082206 (2014), vol. 55, no. 8.
View/Download from: Publisher's site
View description>>

Recently a new quantum generalization of the Renyi divergence and thecorresponding conditional Renyi entropies was proposed. Here we report on asurprising relation between conditional Renyi entropies based on this newgeneralization and conditional Renyi entropies based on the quantum relativeRenyi entropy that was used in previous literature. Our result generalizes thewell-known duality relation H(A|B) + H(A|C) = 0 of the conditional von Neumannentropy for tripartite pure states to Renyi entropies of two different kinds. As a direct application, we prove a collection of inequalities that relatedifferent conditional Renyi entropies and derive a new entropic uncertaintyrelation.

Torpy, FR, Irga, PJ, Brennan, J & Burchett, MD 2013, 'Do indoor plants contribute to the aeromycota in city buildings?', AEROBIOLOGIA, vol. 29, no. 3, pp. 321-331.
View/Download from: Publisher's site
View description>>

Many studies have focused on the sources of fungal contamination in indoor spaces. Pathogenic fungi have been detected in the potting mix of indoor plants; however, it is unclear if plants in indoor work spaces make qualitative or quantitative contributions to the aeromycota within buildings. The current work represents a field study to determine, under realistic office conditions, whether indoor plants make a contribution to the airborne aeromycota. Fifty-five offices, within two buildings in Sydney's central business district, were studied over two seasonal periods: autumn and spring. We found that indoor plant presence made no significant difference to either indoor mould spore counts or their species composition. No seasonal differences occurred between autumn and spring samples. Indoor spore loads were significantly lower than outdoor levels, demonstrating the efficiency of the heating, ventilation and air conditioning systems in the buildings sampled. Neither the number of plants nor the species of plant used had an influence on spore loads; however, variations of those two variables offer potential for further studies. We conclude that conservative numbers of indoor plants make no substantial contribution to building occupants exposure to fungi. © 2012 Springer Science+Business Media Dordrecht.

Torpy, FR, Irga, PJ, Moldovan, D, Tarran, J & Burchett, MD 2013, 'Characterization and Biostimulation of benzene biodegradation in the potting-mix of indoor plants', Journal of Applied Horticulture, vol. 15, no. 1, pp. 10-15.
View description>>

Over 900 volatile organic compounds (VOCs) have been detected in indoor air, where they cause acute and chronic health problems to building occupants. Potted-plants can significantly reduce VOC levels in indoor air, the root-zone bacteria of the potting mix effecting most of the VOC biodegradation. In this study, a baseline community level physiological profile (CLPP) was established for the potting mix bacteria of the indoor plant species, Spathiphyllum wallisii 'Petite', using Biolog EcoPlates, to provide information on the functional abilities of this community. Changes in the CLPP resulting from benzene exposure were then determined and following the identification of the carbon sources associated with changes in the CLPP, biostimulant solutions were formulated and applied to fresh potted-plant specimens. Biostimulation of benzene removal was observed, with increases in removal rates of about 15%, providing proof-of-concept for the biostimulation of this process. The findings further elucidate the mechanisms of bacterial activity associated with removal of indoor airborne benzene, and could be applied to increase VOC biodegradation rates, augmenting the uses of indoor plants in improving building environmental quality.

Torpy, FR, Irga, PJ, Moldovan, D, Tarran, J & Burchett, MD 2013, 'Characterization and biostimulation of benzene biodegradation in the potting-mix of indoor plants', Journal of Applied Horticulture, vol. 15, no. 01, pp. 10-15.
View/Download from: Publisher's site

Tran, N & Hutvagner, G 2013, 'Biogenesis and the regulation of the maturation of miRNAs', Essays in Biochemistry, vol. 54, no. 1, pp. 17-28.
View/Download from: Publisher's site
View description>>

Regulation of gene expression is a fundamental process in both prokaryotic and eukaryotic organisms. Multiple regulatory mechanisms are in place to control gene expression at the level of transcription, post-transcription and post-translation to maintain optimal RNA and protein expressions in cells. miRNAs (microRNAs) are abundant short 21–23 nt non-coding RNAs that are key regulators of virtually all eukaryotic biological processes. The levels of miRNAs in an organism are crucial for proper development and sustaining optimal cell functions. Therefore the processing and regulation of the processing of these miRNAs are critical. In the present chapter we highlight the most important steps of miRNA processing, describe the functions of key proteins involved in the maturation of miRNAs, and discuss how the generation and the stability of miRNAs are regulated.

Tran, NH, Urase, T, Ngo, HH, Hu, J & Ong, SL 2013, 'Insight into metabolic and cometabolic activities of autotrophic and heterotrophic microorganisms in the biodegradation of emerging trace organic contaminants', BIORESOURCE TECHNOLOGY, vol. 146, no. 1, pp. 721-731.
View/Download from: Publisher's site
View description>>

Many efforts have been made to understand the biodegradation of emerging trace organic contaminants (EOCs) in the natural and engineered systems. This review summarizes the current knowledge on the biodegradation of EOCs while having in-depth discussion on metabolism and cometabolism of EOCs. Biodegradation of EOCs is mainly attributed to cometabolic activities of both heterotrophic and autotrophic microorganisms. Metabolism of EOCs can only be observed by heterotrophic microbes. Autotrophic ammonia oxidizing bacteria (AOB) and ammonia oxidizing archaeal (AOA) cometabolize a variety of EOCs via the non-specific enzymes, such as ammonia monooxygenase (AMO). Higher biodegradation of EOCs is often noted under nitrification at high ammonia loading rate. The presence of a growth substrate promotes cometabolic biodegradation of EOCs. Potential strategies for enhancing the biodegradation of EOCs were also proposed in this review. © 2013 Elsevier Ltd.

Tran, TS, Hirst, JE, Do, MAT, Morris, JM & Jeffery, HE 2013, 'Early Prediction of Gestational Diabetes Mellitus in Vietnam', Diabetes Care, vol. 36, no. 3, pp. 618-624.
View/Download from: Publisher's site
View description>>

OBJECTIVE We aimed to compare the discriminative power of prognostic models for early prediction of women at risk for the development of gestational diabetes mellitus (GDM) using four currently recommended diagnostic criteria based on the 75-g oral glucose tolerance test (OGTT). We also described the potential effect of application of the models into clinical practice. RESEARCH DESIGN AND METHODS A prospective cross-sectional study of 2,772 pregnant women was conducted at a referral maternity center in Vietnam. GDM was determined by the American Diabetes Association (ADA), International Association of the Diabetes and Pregnancy Study Groups (IADPSG), Australasian Diabetes in Pregnancy Society (ADIPS), and World Health Organization (WHO) criteria. Prognostic models were developed using the Bayesian model averaging approach, and discriminative power was assessed by area under the curve. Different thresholds of predicted risk of developing GDM were applied to describe the clinical impact of the diagnostic criteria. RESULTS The magnitude of GDM varied substantially by the diagnostic criteria: 5.9% (ADA), 20.4% (IADPSG), 20.8% (ADIPS), and 24.3% (WHO). The ADA prognostic model, consisting of age and BMI at booking, had the best discriminative power (area under the curve of 0.71) and the most favorable cost-effective ratio if implemented in clinical practice. Selective screening of women for GDM using the ADA model with a risk threshold of 3% gave 93% sensitivity for identification of women with GDM with a 27% reduction in the number of OGTTs required. ...

Trianni, A, Cagno, E & Worrell, E 2013, 'Innovation and adoption of energy efficient technologies: An exploratory analysis of Italian primary metal manufacturing SMEs', Energy Policy, vol. 61, pp. 430-440.
View/Download from: Publisher's site

Trianni, A, Cagno, E, Thollander, P & Backlund, S 2013, 'Barriers to industrial energy efficiency in foundries: a European comparison', Journal of Cleaner Production, vol. 40, pp. 161-176.
View/Download from: Publisher's site

Trianni, A, Cagno, E, Worrell, E & Pugliese, G 2013, 'Empirical investigation of energy efficiency barriers in Italian manufacturing SMEs', Energy, vol. 49, pp. 444-458.
View/Download from: Publisher's site

Truong, BCQ, Hoang Duong Tuan, Ha Hoang Kha & Nguyen, HT 2013, 'Debye Parameter Extraction for Characterizing Interaction of Terahertz Radiation With Human Skin Tissue', IEEE Transactions on Biomedical Engineering, vol. 60, no. 6, pp. 1528-1537.
View/Download from: Publisher's site
View description>>

This paper is concerned with parameter extraction for the double Debye model, which is used for analytically determining human skin permittivity. These parameters are thought to be the origin of contrast in terahertz (THz) images of skin cancer. The existing extraction methods could generate Debye models, which track their measurements accurately at frequencies higher than 1 THz but poorly at lower frequencies, where the majority of permittivity contrast between healthy and diseased skin tissues is actually observed.We propose a global optimization-based parameter extraction,which results in globally accurate tracking and thus supports the full validity of the Debye model for simulating human skin permittivity in the whole usable THz frequencies. Numerical results confirm viability of our novel methodology.

Tsakonas, A & Gabrys, B 2013, 'A fuzzy evolutionary framework for combining ensembles', Applied Soft Computing, vol. 13, no. 4, pp. 1800-1812.
View/Download from: Publisher's site

Tu, C & Lee, JE-Y 2013, 'Ambient temperature and bias conditions induced frequency drifts in an uncompensated SOI piezoresistive resonator', Sensors and Actuators A: Physical, vol. 202, pp. 140-146.
View/Download from: Publisher's site

Tu, C & Lee, JE-Y 2013, 'Crystallographic Effects on Energy Dissipation in High- $Q$ Silicon Bulk-Mode Resonators', Journal of Microelectromechanical Systems, vol. 22, no. 2, pp. 262-264.
View/Download from: Publisher's site

Tu, KL, Chivas, AR & Nghiem, LD 2013, 'Enhanced boron rejection by NF/RO membranes by complexation with polyols: Measurement and mechanisms', Desalination, vol. 310, pp. 115-121.
View/Download from: Publisher's site

Tu, KL, Fujioka, T, Khan, SJ, Poussade, Y, Roux, A, Drewes, JE, Chivas, AR & Nghiem, LD 2013, 'Boron as a Surrogate for N-Nitrosodimethylamine Rejection by Reverse Osmosis Membranes in Potable Water Reuse Applications', Environmental Science & Technology, vol. 47, no. 12, pp. 6425-6430.
View/Download from: Publisher's site

Tuan, HD, Son, TT, Tuy, H & Khoa, PT 2013, 'Monotonic optimization based decoding for linear codes', Journal of Global Optimization, vol. 55, no. 2, pp. 301-312.
View/Download from: Publisher's site
View description>>

New efficient methods are developed for the optimal maximum-likelihood (ML) decoding of an arbitrary binary linear code based on data received from any discrete Gaussian channel. The decoding algorithm is based on monotonic optimization that is minimizing a difference of monotonic (d.m.) objective functions subject to the 01 constraints of bit variables. The iterative process converges to the global optimal ML solution after finitely many steps. The proposed algorithms computational complexity depends on input sequence length k which is much less than the codeword length n, especially for a codes with small code rate. The viability of the developed is verified through simulations on different coding schemes.

Tuy, H & Tuan, HD 2013, 'Generalized S-Lemma and strong duality in nonconvex quadratic programming', Journal of Global Optimization, vol. 56, no. 3, pp. 1045-1072.
View/Download from: Publisher's site
View description>>

On the basis of a new topological minimax theorem, a simple and unified approach is developed to Lagrange duality in nonconvex quadratic programming. Diverse generalizations as well as equivalent forms of the S-Lemma, providing a thorough study of dualit

Vakiloroaya, V, Ha, QP & Skibniewski, M 2013, 'Modeling and experimental validation of a solar-assisted direct expansion air conditioning system', ENERGY AND BUILDINGS, vol. 66, no. 1, pp. 524-536.
View/Download from: Publisher's site
View description>>

Continuous increase in global electricity consumption, environmental hazards of pollution and deple-tion of fossil fuel resources have brought about a paradigm shift in the development of eco-friendly andenergy-efficient technologies. This paper reports on an experimental study to investigate the inherentoperational characteristics of a new direct-expansion air conditioning system combined with a vacuumsolar collector. Mathematical models of the system components are firstly derived and then validatedagainst experimental results. To investigate the potential of energy savings, the hybrid solar-assistedair-conditioner is installed and extensively equipped with a number of sensors and instrumentationdevices, for experimentation and data collection. The influence on the system energy usage of the aver-age water temperature, storage tank size and room set-point temperature are then analyzed. Once theair-conditioned room has achieved its desired temperature, the compressor turns off while the cool-ing process still continues until the refrigerant pressure no longer maintains the desired temperature.The advantages of the proposed hybrid system rest with the fact that the compressor can remain off in alonger period by heat impartation into the refrigerant via the water storage tank. Results show an averagemonthly energy saving of about between 25% and 42%.

Van de Velde, S, Vander Stichele, R, Fauquert, B, Geens, S, Heselmans, A, Ramaekers, D, Kunnamo, I & Aertgeerts, B 2013, 'EBMPracticeNet: A Bilingual National Electronic Point-Of-Care Project for Retrieval of Evidence-Based Clinical Guideline Information and Decision Support', JMIR Research Protocols, vol. 2, no. 2, pp. e23-e23.
View/Download from: Publisher's site
View description>>

Background

In Belgium, the construction of a national electronic point-of-care information service, EBMPracticeNet, was initiated in 2011 to optimize quality of care by promoting evidence-based decision-making. The collaboration of the government, health care providers, evidence-based medicine (EBM) partners, and vendors of electronic health records (EHR) is unique to this project. All Belgian health care professionals get free access to an up-to-date database of validated Belgian and nearly 1000 international guidelines, incorporated in a portal that also provides EBM information from other sources than guidelines, including computerized clinical decision support that is integrated in the EHRs.

Objective

The objective of this paper was to describe the development strategy, the overall content, and the management of EBMPracticeNet which may be of relevance to other health organizations creating national or regional electronic point-of-care information services.

Methods

Several candidate providers of comprehensive guideline solutions were evaluated and one database was selected. Translation of the guidelines to Dutch and French was done with translation software, post-editing by translators and medical proofreading. A strategy is determined to adapt the guideline content to the Belgian context. Acceptance of the computerized clinical decision support tool has been tested and a randomized controlled trial is planned to evaluate the effect on process and patient outcomes.

Results

Currently, EBMPracticeNet is in "work in progress" state. Reference is made to the results of a pilot study and to further planned research including a randomized controlled trial.

Conclusions

The collaboration of government, health care providers, EBM partners, and vendors of EHRs is unique. The potential value of the project is great. The link between all the EHRs from different vendors and a national database held on a single platform that is controlle...

van den Hoven, E, van de Garde-Perik, E, Offermans, S, van Boerdonk, K & Lenssen, K-MH 2013, 'Moving Tangible Interaction Systems to the Next Level', COMPUTER, vol. 46, no. 8, pp. 70-76.
View/Download from: Publisher's site
View description>>

Understanding tangible interactions foundational concepts can lead to systems with direct, integrated, and meaningful data control and representation.

van Haarlem, MP, Wise, MW, Gunst, AW, Heald, G, McKean, JP, Hessels, JWT, de Bruyn, AG, Nijboer, R, Swinbank, J, Fallows, R, Brentjens, M, Nelles, A, Beck, R, Falcke, H, Fender, R, Hörandel, J, Koopmans, LVE, Mann, G, Miley, G, Röttgering, H, Stappers, BW, Wijers, RAMJ, Zaroubi, S, van den Akker, M, Alexov, A, Anderson, J, Anderson, K, van Ardenne, A, Arts, M, Asgekar, A, Avruch, IM, Batejat, F, Bähren, L, Bell, ME, Bell, MR, van Bemmel, I, Bennema, P, Bentum, MJ, Bernardi, G, Best, P, Bîrzan, L, Bonafede, A, Boonstra, A-J, Braun, R, Bregman, J, Breitling, F, van de Brink, RH, Broderick, J, Broekema, PC, Brouw, WN, Brüggen, M, Butcher, HR, van Cappellen, W, Ciardi, B, Coenen, T, Conway, J, Coolen, A, Corstanje, A, Damstra, S, Davies, O, Deller, AT, Dettmar, R-J, van Diepen, G, Dijkstra, K, Donker, P, Doorduin, A, Dromer, J, Drost, M, van Duin, A, Eislöffel, J, van Enst, J, Ferrari, C, Frieswijk, W, Gankema, H, Garrett, MA, de Gasperin, F, Gerbers, M, de Geus, E, Grießmeier, J-M, Grit, T, Gruppen, P, Hamaker, JP, Hassall, T, Hoeft, M, Holties, HA, Horneffer, A, van der Horst, A, van Houwelingen, A, Huijgen, A, Iacobelli, M, Intema, H, Jackson, N, Jelic, V, de Jong, A, Juette, E, Kant, D, Karastergiou, A, Koers, A, Kollen, H, Kondratiev, VI, Kooistra, E, Koopman, Y, Koster, A, Kuniyoshi, M, Kramer, M, Kuper, G, Lambropoulos, P, Law, C, van Leeuwen, J, Lemaitre, J, Loose, M, Maat, P, Macario, G, Markoff, S, Masters, J, McFadden, RA, McKay-Bukowski, D, Meijering, H, Meulman, H, Mevius, M, Middelberg, E, Millenaar, R, Miller-Jones, JCA, Mohan, RN, Mol, JD, Morawietz, J, Morganti, R, Mulcahy, DD, Mulder, E, Munk, H, Nieuwenhuis, L, van Nieuwpoort, R, Noordam, JE, Norden, M, Noutsos, A, Offringa, AR, Olofsson, H, Omar, A, Orrú, E, Overeem, R, Paas, H, Pandey-Pommier, M, Pandey, VN, Pizzo, R, Polatidis, A, Rafferty, D, Rawlings, S, Reich, W, de Reijer, J-P, Reitsma, J, Renting, GA, Riemers, P, Rol, E, Romein, JW, Roosjen, J, Ruiter, M, Scaife, A, van der Schaaf, K, Scheers, B, Schellart, P, Schoenmakers, A, Schoonderbeek, G, Serylak, M, Shulevski, A, Sluman, J, Smirnov, O, Sobey, C, Spreeuw, H, Steinmetz, M, Sterks, CGM, Stiepel, H-J, Stuurwold, K, Tagger, M, Tang, Y, Tasse, C, Thomas, I, Thoudam, S, Toribio, MC, van der Tol, B, Usov, O, van Veelen, M, van der Veen, A-J, ter Veen, S, Verbiest, JPW, Vermeulen, R, Vermaas, N & et al. 2013, 'LOFAR: The LOw-Frequency ARray', Astronomy & Astrophysics, vol. 556, pp. A2-A2.
View/Download from: Publisher's site

VEITCH, D, GORST-RASMUSSEN, A & GEFFERTH, A 2013, 'WHY FARIMA MODELS ARE BRITTLE', Fractals, vol. 21, no. 02, pp. 1350012-1350012.
View/Download from: Publisher's site
View description>>

The FARIMA models, which have long-range-dependence (LRD), are widely used in many areas. Through the derivation of a precise characterization of the spectrum and variance time function, we show that this family is very atypical among LRD processes, being extremely close to the fractional Gaussian noise in a precise sense which results in ultra-fast convergence to fGn under rescaling. Furthermore, we show that this closeness property is not robust to additive noise. We argue that the use of FARIMA, and more generally fractionally differenced time series, should be reassessed in some contexts, in particular when convergence rate under rescaling is important and noise is expected.

Veitch, V, Ferrie, C, Gross, D & Emerson, J 2013, 'Corrigendum: Negative quasi-probability as a resource for quantum computation', New Journal of Physics, vol. 15, no. 3, pp. 039502-039502.
View/Download from: Publisher's site

Verma, P, Singh, R & Singh, AK 2013, 'A framework to integrate speech based interface for blind web users on the websites of public interest', Human-centric Computing and Information Sciences, vol. 3, no. 1, pp. 1-18.
View/Download from: Publisher's site
View description>>

AbstractDespite many assistive tools available for browsing the web, blind persons are not able to perform the tasks using internet that are done by persons without such disability. Even the futuristic social networking sites and other websites using the features of web 2.0 indicate a lesser accessible/responsible web. In this paper, we propose a framework, which can be used by the websites of public interest to make their important utilities better accessible and usable to blind web users. The approach is based on providing an alternate access system on the fly using one single website. The framework makes use of existing technologies like JavaScript, available speech APIs etc. and therefore provides a lightweight and robust solution to the accessibility problem. As a case study, we demonstrate the usefulness of the proposed framework by showing its working on a key functionality of the Indian Railways Reservation Website.

Visintin, P, Oehlers, DJ, Haskett, M & Wu, C 2013, 'Mechanics-Based Hinge Analysis for Reinforced Concrete Columns', Journal of Structural Engineering, vol. 139, no. 11, pp. 1973-1980.
View/Download from: Publisher's site

Visintin, P, Oehlers, DJ, Muhamad, R & Wu, C 2013, 'Partial-interaction short term serviceability deflection of RC beams', Engineering Structures, vol. 56, pp. 993-1006.
View/Download from: Publisher's site

Voinov, A & Shugart, HH 2013, '‘Integronsters’, integral and integrated modeling', Environmental Modelling & Software, vol. 39, pp. 149-158.
View/Download from: Publisher's site

Wahid, H, Ha, QP, Duc, H & Azzi, M 2013, 'Neural network-based meta-modelling approach for estimating spatial distribution of air pollutant levels', APPLIED SOFT COMPUTING, vol. 13, no. 10, pp. 4087-4096.
View/Download from: Publisher's site
View description>>

Continuous measurements of the air pollutant concentrations at monitoring stations serve as a reliable basis for air quality regulations. Their availability is however limited only at locations of interest. In most situations, the spatial distribution beyond these locations still remains uncertain as it is highly influenced by other factors such as emission sources, meteorological effects, dispersion and topographical conditions. To overcome this issue, a larger number of monitoring stations could be installed, but it would involve a high investment cost. An alternative solution is via the use of a deterministic air quality model (DAQM), which is mostly adopted by regulatory authorities for prediction in the temporal and spatial domain as well as for policy scenario development. Nevertheless, the results obtained from a model are subject to some uncertainties and it requires, in general, a significant computation time. In this work, a meta-modelling approach based on neural network evaluation is proposed to improve the estimated spatial distribution of the pollutant concentrations. From a dispersion model, it is suggested that the spatially-distributed pollutant levels (i.e. ozone, in this study) across a region under consideration is a function of the grid coordinates, topographical information, solar radiation and the pollutant's precursor emission. Initially, for training the model, the input-output relationship is extracted from a photochemical dispersion model called The Air Pollution Model and Chemical Transport Model (TAPM-CTM), and some of those input-output data are correlated with the ambient measurements collected at monitoring stations. Here, improved radial basis function networks, incorporating a proposed technique for selection of the network centres, will be developed and trained by using the data obtained and the forward selection approach. The methodology is then applied to estimate the ozone concentrations in the Sydney basin, Austral...

Wang, F, Toe, WJ, Lee, WM, McGloin, D, Gao, Q, Tan, HH, Jagadish, C & Reece, PJ 2013, 'Resolving Stable Axial Trapping Points of Nanowires in an Optical Tweezers Using Photoluminescence Mapping', Nano Letters, vol. 13, no. 3, pp. 1185-1191.
View/Download from: Publisher's site
View description>>

Axially resolved microphotoluminescence mapping of semiconductor nanowires held in an optical tweezers reveals important new experimental information regarding equilibrium trapping points and trapping stability of high aspect ratio nanostructures. In this study, holographic optical tweezers are used to scan trapped InP nanowires along the beam direction with respect to a fixed excitation source and the luminescent properties are recorded. It is observed that nanowires with lengths on the range of 3-15 μm are stably trapped near the tip of the wire with the long segment positioned below the focus in an inverted trapping configuration. Through the use of trap multiplexing we investigate the possibility of improving the axial stability of the trapped nanowires. Our results have important implication for applications of optically assisted nanowire assembly and optical tweezers based scanning probes microscopy. © 2013 American Chemical Society.

Wang, G, Guo, L, Gandomi, AH, Cao, L, Alavi, AH, Duan, H & Li, J 2013, 'Lévy-Flight Krill Herd Algorithm', Mathematical Problems in Engineering, vol. 2013, pp. 1-14.
View/Download from: Publisher's site
View description>>

To improve the performance of the krill herd (KH) algorithm, in this paper, a Lévy-flight krill herd (LKH) algorithm is proposed for solving optimization tasks within limited computing time. The improvement includes the addition of a new local Lévy-flight (LLF) operator during the process when updating krill in order to improve its efficiency and reliability coping with global numerical optimization problems. The LLF operator encourages the exploitation and makes the krill individuals search the space carefully at the end of the search. The elitism scheme is also applied to keep the best krill during the process when updating the krill. Fourteen standard benchmark functions are used to verify the effects of these improvements and it is illustrated that, in most cases, the performance of this novel metaheuristic LKH method is superior to, or at least highly competitive with, the standard KH and other population-based optimization methods. Especially, this new method can accelerate the global convergence speed to the true global optimum while preserving the main feature of the basic KH.

Wang, G-G, Guo, L, Gandomi, AH, Alavi, AH & Duan, H 2013, 'Simulated Annealing-Based Krill Herd Algorithm for Global Optimization', Abstract and Applied Analysis, vol. 2013, pp. 1-11.
View/Download from: Publisher's site
View description>>

Recently, Gandomi and Alavi proposed a novel swarm intelligent method, called krill herd (KH), for global optimization. To enhance the performance of the KH method, in this paper, a new improved meta-heuristic simulated annealing-based krill herd (SKH) method is proposed for optimization tasks. A new krill selecting (KS) operator is used to refine krill behavior when updating krill’s position so as to enhance its reliability and robustness dealing with optimization problems. The introduced KS operator involves greedy strategy and accepting few not-so-good solutions with a low probability originally used in simulated annealing (SA). In addition, a kind of elitism scheme is used to save the best individuals in the population in the process of the krill updating. The merits of these improvements are verified by fourteen standard benchmarking functions and experimental results show that, in most cases, the performance of this improved meta-heuristic SKH method is superior to, or at least highly competitive with, the standard KH and other optimization methods.

Wang, G-G, Hossein Gandomi, A & Hossein Alavi, A 2013, 'A chaotic particle-swarm krill herd algorithm for global numerical optimization', Kybernetes, vol. 42, no. 6, pp. 962-978.
View/Download from: Publisher's site
View description>>

Purpose – To improve the performance of the krill herd (KH) algorithm, in this paper, a series of chaotic particle-swarm krill herd (CPKH) algorithms are proposed for solving optimization tasks within limited time requirements. The paper aims to discuss these issues. Design/methodology/approach – In CPKH, chaos sequence is introduced into the KH algorithm so as to further enhance its global search ability. Findings – This new method can accelerate the global convergence speed while preserving the strong robustness of the basic KH. Originality/value – Here, 32 different benchmarks and a gear train design problem are applied to tune the three main movements of the krill in CPKH method. It has been demonstrated that, in most cases, CPKH with an appropriate chaotic map performs superiorly to, or at least highly competitively with, the standard KH and other population-based optimization methods.

Wang, H, Huang, S, Frese, U & Dissanayake, G 2013, 'The nonlinearity structure of point feature SLAM problems with spherical covariance matrices', AUTOMATICA, vol. 49, no. 10, pp. 3112-3119.
View/Download from: Publisher's site
View description>>

This paper proves that the optimization problem of one-step point feature Simultaneous Localization and Mapping (SLAM) is equivalent to a nonlinear optimization problem of a single variable when the associated uncertainties can be described using spherical covariance matrices. Furthermore, it is proven that this optimization problem has at most two minima. The necessary and sufficient conditions for the existence of one or two minima are derived in a form that can be easily evaluated using observation and odometry data. It is demonstrated that more than one minimum exists only when the observation and odometry data are extremely inconsistent with each other. A numerical algorithm based on bisection is proposed for solving the one-dimensional nonlinear optimization problem. It is shown that the approach extends to joining of two maps, thus can be used to obtain an approximate solution to the complete SLAM problem through map joining. © 2013 Elsevier Ltd. All rights reserved.

Wang, L, Dimitrijev, S, Walker, G, Han, JS, Iacopi, A, Tanner, P, Hold, L, Zhao, Y & Iacopi, F 2013, 'Color Chart for Thin SiC Films Grown on Si Substrates', Materials Science Forum, vol. 740-742, pp. 279-282.
View/Download from: Publisher's site
View description>>

In this paper, a color chart was defined for thin SiC films grown on Si substrates. For SiC films thinner than 500 nm, the surface color was observed using an optical microscope with the incident light normally illuminated on the SiC surface. An image of the surface was then taken by a camera attached to the optical microscope and the surface color was defined using RGB code. For SiC films thicker than 500 nm, the image taken by the camera did not represent the real color of the SiC film. Therefore, for these thicker SiC films, the colors were defined by observing the films under daylight fluorescent lighting by naked eyes. It was found that the colors of the SiC films vary periodically as the thickness increased. No color saturation was found for SiC films up to 1185 nm thick.

Wang, L, Luo, Z & Juang, CH 2013, 'Foundation Engineering in the Face of Uncertainty', Geotechnical Special Publication, no. 229, pp. 530-541.
View/Download from: Publisher's site
View description>>

In this paper, an efficient framework based on the maximum likelihood principle for inverse analysis of soil parameters in braced excavations is proposed. With this framework, the observed maximum ground settlement and maximum wall deflection are used to back-calculate soil parameters through a semi-empirical model. The updated soil parameters from the current stage of excavation can be used to predict the maximum ground settlement and maximum wall deflection in the subsequent stages of excavations. The proposed framework is computationally efficient and can easily be implemented in a spreadsheet. The effectiveness of the proposed framework is illustrated with a well documented excavation case. The results of the case study show that the updated soil parameters improve the accuracy of predictions of the wall and ground responses in a braced excavation. © 2013 American Society of Civil Engineers.

Wang, M, Khalilpour, R & Abbas, A 2013, 'Operation optimization of propane precooled mixed refrigerant processes', Journal of Natural Gas Science and Engineering, vol. 15, pp. 93-105.
View/Download from: Publisher's site

Wang, Q, Ye, L, Jiang, G & Yuan, Z 2013, 'A free nitrous acid (FNA)-based technology for reducing sludge production', Water Research, vol. 47, no. 11, pp. 3663-3672.
View/Download from: Publisher's site

Wang, Q, Ye, L, Jiang, G, Jensen, PD, Batstone, DJ & Yuan, Z 2013, 'Free Nitrous Acid (FNA)-Based Pretreatment Enhances Methane Production from Waste Activated Sludge', Environmental Science & Technology, vol. 47, no. 20, pp. 11897-11904.
View/Download from: Publisher's site

Wang, Q, Yue, D & Yan, Q 2013, 'Channel capacity of multiple antenna systems with interference and covariance feedback', Dianbo Kexue Xuebao/Chinese Journal of Radio Science, vol. 28, no. 5, pp. 883-890.
View/Download from: Publisher's site
View description>>

The optimization of ergodic channel capacity is investigated for multiple-input multiple-output (MIMO) multiple antenna systems with co-channel interference when the covariance feedback is available at the transmitter. An equivalent form of the co-interference component is first derived. Then an optimal capacity estimation algorithm is proposed by performing gradient projection algorithm which is based on nonlinear programming theory. Finally, Monte-Carlo simulation is given. The numerical results show that the performance with the proposed algorithm is close to the optimal one which is obtained by water-filling algorithm when both the interference power and the correlation between antennas are strong. Copyright © 2013 by Editorial Department of Chinese Journal of Radio Science.

Wang, Q, Yue, D-W & Lau, FCM 2013, 'Outage Performance and Cooperative Diversity Under Amplify and Forward Relaying in Cognitive Radio Networks', Wireless Personal Communications, vol. 69, no. 2, pp. 891-914.
View/Download from: Publisher's site
View description>>

This paper investigates the outage and diversity performance in a cognitive radio (CR) network, in which data are transmitted through amplify-and-forward protocol. A fixed CR node is selected as relay to combat fading effect. The CR user transmits or relays data when the result of cooperative spectrum sensing indicates that primary user (PU) channel is free and the relay node stops performing the protocol as soon as the PU is detected to be active. A closed-form expression of outage probability for the CR network is calculated based on which diversity order is derived. The results show that the proposed scheme suffers a loss in diversity order. To compensate for this loss, a repetition-based scheme is proposed in a delay-insensitive system at the cost of the challenge in implementation. In this case, we evaluate the outage performance and the average transmit duration and then compare them with the ones in the delay-sensitive system. Asymptotic analysis is also presented to show the outage performance advantage of using a relay over the one without using it. The numerical results presented in the paper verify our analysis. © 2012 Springer Science+Business Media, LLC.

Wang, R, Cohen, G, Stiefel, KM, Hamilton, TJ, Tapson, J & van Schaik, A 2013, 'An FPGA Implementation of a Polychronous Spiking Neural Network with Delay Adaptation', Frontiers in Neuroscience, vol. 7.
View/Download from: Publisher's site

Wang, TQ, Sekercioglu, YA & Armstrong, J 2013, 'Analysis of an Optical Wireless Receiver Using a Hemispherical Lens With Application in MIMO Visible Light Communications', Journal of Lightwave Technology, vol. 31, no. 11, pp. 1744-1754.
View/Download from: Publisher's site
View description>>

White lighting LEDs offer great potential for high speed communications, especially for indoor applications. However, for their widespread adoption, two important issues need to be addressed: the lack of diversity in multiple-input multiple output (MIMO) systems, and the small field of view of receivers. In this paper, we describe a design using a hemispherical lens in the receiver that solves these problems. By using classical optics, we derive exact expressions for the channel gain and the optical power density of the projected images. Simulation results of a typical indoor scenario show that the new system has a wide field of view, and provides adequate channel gain for angles of incidence as large as 70 degrees. We present the distribution of optical power on the imaging plane for various receiving positions and tilted receivers over a number of representative indoor scenarios. They show that the images of LEDs are clearly distinguishable. The results demonstrate the presence of low channel correlations between individual transmitters and receivers. Consequently, this confirms that the new technique is capable of providing significant diversity order for MIMO optical wireless applications. © 1983-2012 IEEE.

Wang, TQ, Sekercioglu, YA, Neild, A & Armstrong, J 2013, 'Position Accuracy of Time-of-Arrival Based Ranging Using Visible Light With Application in Indoor Localization Systems', Journal of Lightwave Technology, vol. 31, no. 20, pp. 3302-3308.
View/Download from: Publisher's site
View description>>

This paper analyzes an indoor positioning system that uses white lighting LEDs. Modulated signals transmitted by the LEDs are used as the basis of time-of-arrival-based distance estimation. The theoretical limits on the accuracy of estimation are calculated by deriving the Cramer-Rao bound for intensity modulated windowed sinusoidal signals. Calculations for a typical indoor scenario, assuming perfect synchronization between transmitter and receiver, but using realistic values for other parameters show that very accurate distance estimates are achievable, with typical errors being in the order of centimeters depending on the frequency and power of the sinusoidal signals, the distance from the LED and the properties of the LED and the photoreceiver. © 2012 IEEE.

Wang, W & Lu, DDC 2013, 'A bridgeless DIVM buck PFC rectifier with digital control and voltage doubler configuration', International Journal of Power Electronics, vol. 5, no. 2, pp. 125-125.
View/Download from: Publisher's site
View description>>

A new digitally controlled, bridgeless AC/DC buck converter that operates in discontinuous-input-voltage mode (DIVM) is presented. It inherits power factor correction property and draws continuous input current during conduction period. In addition, the efficiency of the proposed buck PFC rectifier is improved by adopting a bridgeless configuration. The converter also works as a voltage-doubler which reduces the size of the output capacitors. Detailed operating analysis, design criteria, and modelling of the buck converter are reported. Experimental results for verifying the theoretical analysis are also presented. © 2013 Inderscience Enterprises Ltd.

Wang, Y-K, Sheng, G-P, Ni, B-J, Li, W-W, Zeng, RJ, Wang, Y-Q, Shi, B-J & Yu, H-Q 2013, 'Simultaneous carbon and nitrogen removals in membrane bioreactor with mesh filter: An experimental and modeling approach', Chemical Engineering Science, vol. 95, pp. 78-84.
View/Download from: Publisher's site

Wang, Y-Q, He, J-J, Luo, Z & Kang, Z 2013, 'An adaptive method for high-resolution topology design', Acta Mechanica Sinica, vol. 29, no. 6, pp. 840-850.
View/Download from: Publisher's site
View description>>

For the purpose of achieving high-resolution optimal solutions this paper proposes a nodal design variable-based adaptive method for topology optimization of continuum structures. The analysis mesh-independent density field, interpolated by the nodal des

Wang, Z, Chen, S, Mo, H, Huang, Y, Li, J, Sun, J, Liu, L & Zhao, S 2013, 'A simple and economical method in purifying dairy goat luteal cells', Tissue and Cell, vol. 45, no. 4, pp. 269-274.
View/Download from: Publisher's site

Warkiani, ME, Bhagat, AAS, Khoo, BL, Han, J, Lim, CT, Gong, HQ & Fane, AG 2013, 'Isoporous Micro/Nanoengineered Membranes', ACS Nano, vol. 7, no. 3, pp. 1882-1904.
View/Download from: Publisher's site

Wei Ni, Ren Ping Liu, Collings, IB & Xin Wang 2013, 'Indoor cooperative small cells over ethernet', IEEE Communications Magazine, vol. 51, no. 9, pp. 100-107.
View/Download from: Publisher's site
View description>>

The ubiquitous Ethernet has great potential to become an easy-to-install cost-effective backhaul solution for mobile small cells. However, limited Ethernet bandwidth is a practical constraint. Not only is small cell capacity limited by Ethernet bandwidth, but also the synchronization between cells can be substantially compromised. In this article we discuss small cells with Ethernet backhaul, focusing on two practical and important aspects: backhaul bandwidth requirements and tolerance to synchronization errors. The aspects become challenging in indoor small cell applications where the cells need to cooperatively suppress strong interference, producing a large amount of backhaul traffic. To address the challenges, we introduce a new distributed scheme of cooperative small cells over Ethernet. Exploiting a soft information combining technique, the scheme allows the signals of cooperative cells to be combined at aggregate switches along their backhaul paths, reducing backhaul traffic in Ethernet and distributing computational complexity. Our case study shows that the distributed scheme can reduce small cell backhaul traffic by 64 percent, compared to a conventional centralized approach. It is also tolerant to a large frequency error of ±4.6 ppm in a ¿freerun¿ state where synchronization is lost. Given the substantially reduced backhaul traffic, the new distributed scheme is able to support three times the cooperative small cells of the conventional centralized approach. © 1979-2012 IEEE. © 2013 IEEE.

Wei, D, Jiang, Z & Han, J 2013, 'Modelling of the evolution of crack of nanoscale in iron', Computational Materials Science, vol. 69, no. 1, pp. 270-277.
View/Download from: Publisher's site
View description>>

Metal owns the ability of self-healing to some extent, and the ability of the internal crack healing is most desirable for improving the reliability of metal. A molecular dynamics simulation has been further developed to investigate the evolution of a nanoscale crack in body centred cubic Fe crystal under the conditions of heating or compressive pressure. When system temperature drops, the evolution of the crack that was at elevated temperature has been studied for the first time. N-body potential according to the embedded atom method has been adopted. The original nanoscale crack is expressed by removing some atoms in the centre of the cell, and the minimum vertical distance between the atoms on the top and bottom crack surfaces has been defined as Dm for assessing the process of crack evolution. The results show that a crack healing process can be accelerated significantly with an increase of temperature. When the system temperature decreases, Dm of the crack that was in healing process does not change significantly but fluctuates in a narrow range. This means that the crack healing is the result of Fe atoms diffusing into the crack area but not the thermal stress incurred in the simulation cell at elevated temperature. The pre-compressive pressure under the condition of both biaxial and uniaxial loadings can help promote the crack healing significantly and results in more uniform distribution of defects after healing.

Wei, HF, Chen, HW, Chen, SP, Yan, PG, Liu, T, Guo, L, Lei, Y, Chen, ZL, Li, J, Zhang, XB, Zhang, GL, Hou, J, Tong, WJ, Luo, J, Li, JY & Chen, KK 2013, 'A compact seven-core photonic crystal fiber supercontinuum source with 42.3 W output power', Laser Physics Letters, vol. 10, no. 4, pp. 045101-045101.
View/Download from: Publisher's site

Wei, W, Li, J, Cao, L, Ou, Y & Chen, J 2013, 'Effective detection of sophisticated online banking fraud on extremely imbalanced data', World Wide Web, vol. 16, no. 4, pp. 449-475.
View/Download from: Publisher's site
View description>>

Sophisticated online banking fraud reflects the integrative abuse of resources in social, cyber and physical worlds. Its detection is a typical use case of the broad-based Wisdom Web of Things (W2T) methodology. However, there is very limited information available to distinguish dynamic fraud from genuine customer behavior in such an extremely sparse and imbalanced data environment, which makes the instant and effective detection become more and more important and challenging. In this paper, we propose an effective online banking fraud detection framework that synthesizes relevant resources and incorporates several advanced data mining techniques. By building a contrast vector for each transaction based on its customer's historical behavior sequence, we profile the differentiating rate of each current transaction against the customer's behavior preference. A novel algorithm, ContrastMiner, is introduced to efficiently mine contrast patterns and distinguish fraudulent from genuine behavior, followed by an effective pattern selection and risk scoring that combines predictions from different models. Results from experiments on large-scale real online banking data demonstrate that our system can achieve substantially higher accuracy and lower alert volume than the latest benchmarking fraud detection system incorporating domain knowledge and traditional fraud detection methods. © 2012 Springer Science+Business Media, LLC.

Wen, S & Zeng, Z 2013, 'Robust sampled-dataH_∞output tracking control for a class of nonlinear networked systems with stochastic sampling', International Journal of Systems Science, vol. 44, no. 9, pp. 1626-1638.
View/Download from: Publisher's site

Wen, S, Bao, G, Zeng, Z, Chen, Y & Huang, T 2013, 'Global exponential synchronization of memristor-based recurrent neural networks with time-varying delays', Neural Networks, vol. 48, pp. 195-203.
View/Download from: Publisher's site

Wen, S, Zeng, Z & Huang, T 2013, 'Associative Learning of Integrate-and-Fire Neurons with Memristor-Based Synapses', Neural Processing Letters, vol. 38, no. 1, pp. 69-80.
View/Download from: Publisher's site

Wen, S, Zeng, Z & Huang, T 2013, 'Dynamic behaviors of memristor-based delayed recurrent networks', Neural Computing and Applications, vol. 23, no. 3-4, pp. 815-821.
View/Download from: Publisher's site

Wen, S, Zeng, Z & Huang, T 2013, 'Observer-based control of discrete time-delay systems with random communication packet losses and multiplicative noises', Applied Mathematics and Computation, vol. 219, no. 12, pp. 6484-6493.
View/Download from: Publisher's site

Wen, S, Zeng, Z & Huang, T 2013, 'Robust probabilistic sampling output tracking control for a class of nonlinear networked systems with multiplicative noises', Journal of the Franklin Institute, vol. 350, no. 5, pp. 1093-1111.
View/Download from: Publisher's site

Wen, S, Zeng, Z, Huang, T & Bao, G 2013, 'Observer‐based H_∞ control of discrete Markovian jump delay systems with random packet losses and multiplicative noises', Optimal Control Applications and Methods, vol. 34, no. 6, pp. 728-741.
View/Download from: Publisher's site
View description>>

SUMMARYThis paper investigates the observer‐based H ∞  control problem for a class of mixed‐delay Markovian jump systems with random communication packet losses and multiplicative noises. The mixed delays comprise both discrete time‐varying delays and distributed delays, the random packet losses are described by a Bernoulli distributed white sequence that obeys a conditional probability distribution, and the multiplicative disturbances are in the form of a scalar Gaussian white noise with unit variance. In the presence of mixed delays, random packet losses and multiplicative noises, sufficient conditions for the existence of an observer‐based feedback controller are derived such that the closed‐loop control system is asymptotically mean‐square stable and preserves a guaranteed H ∞  performance. Then, a linear matrix inequality approach for designing such an observer‐based H ∞  controller is presented. Finally, a numerical example is provided to illustrate the effectiveness of the developed theoretical results. Copyright © 2012 John Wiley & Sons, Ltd.

Wen, S, Zeng, Z, Huang, T & Bao, G 2013, 'Observer-based H control of a class of mixed delay systems with random data losses and stochastic nonlinearities', ISA Transactions, vol. 52, no. 2, pp. 207-214.
View/Download from: Publisher's site

Wen, S, Zeng, Z, Huang, T & Bao, G 2013, 'Robust Passivity and Passification for a Class of Singularly Perturbed Nonlinear Systems with Time-Varying Delays and Polytopic Uncertainties via Neural Networks', Circuits, Systems, and Signal Processing, vol. 32, no. 3, pp. 1113-1127.
View/Download from: Publisher's site

Wen, S, Zeng, Z, Huang, T & Chen, Y 2013, 'Fuzzy modeling and synchronization of different memristor-based chaotic circuits', Physics Letters A, vol. 377, no. 34-36, pp. 2016-2021.
View/Download from: Publisher's site

Wen, S, Zeng, Z, Huang, T & Chen, Y 2013, 'Passivity analysis of memristor-based recurrent neural networks with time-varying delays', Journal of the Franklin Institute, vol. 350, no. 8, pp. 2354-2370.
View/Download from: Publisher's site

Wen, SP, Zeng, ZG & Huang, TW 2013, 'Reliable H Filtering for Mixed Time-Delay Systems with Stochastic Nonlinearities and Multiplicative Noises', ASIAN JOURNAL OF CONTROL, vol. 15, no. 2, pp. 583-593.
View/Download from: Publisher's site

Wijekoon, KC, Fujioka, T, McDonald, JA, Khan, SJ, Hai, FI, Price, WE & Nghiem, LD 2013, 'Removal of N-nitrosamines by an aerobic membrane bioreactor', Bioresource Technology, vol. 141, pp. 41-45.
View/Download from: Publisher's site

Wijekoon, KC, Hai, FI, Kang, J, Price, WE, Guo, W, Ngo, HH & Nghiem, LD 2013, 'The fate of pharmaceuticals, steroid hormones, phytoestrogens, UV-filters and pesticides during MBR treatment', BIORESOURCE TECHNOLOGY, vol. 144, pp. 247-254.
View/Download from: Publisher's site
View description>>

This study examined the relationship between molecular properties and the fate of trace organic contaminants (TrOCs) in the aqueous and solid phases during wastewater treatment by MBR. A set of 29 TrOCs was selected to represent pharmaceuticals, steroid hormones, phytoestrogens, UV-filters and pesticides that occur ubiquitously in municipal wastewater. Both adsorption and biodegradation/transformation were found responsible for the removal of TrOCs by MBR treatment. A connection between biodegradation and molecular structure could be observed while adsorption was the dominant removal mechanism for the hydrophobic (logD > 3.2) compounds. Highly hydrophobic (logD > 3.2) but readily biodegradable compounds did not accumulate in sludge. In contrast, recalcitrant compounds with a moderate hydrophobicity, such as carbamazepine, accumulated significantly in the solid phase. The results provide a framework to predict the removal and fate of TrOCs by MBR treatment.

Williams, M & Catchpoole, D 2013, 'Sequestration of AS-DACA into Acidic Compartments of the Membrane Trafficking System as a Mechanism of Drug Resistance in Rhabdomyosarcoma', International Journal of Molecular Sciences, vol. 14, no. 7, pp. 13042-13062.
View/Download from: Publisher's site
View description>>

The accumulation of weakly basic drugs into acidic organelles has recently been described as a contributor to resistance in childhood cancer rhabdomyosarcoma (RMS) cell lines with differential sensitivity to a novel topoisomerase II inhibitor, AS-DACA. The current study aims to explore the contribution of the endocytic pathway to AS-DACA sequestration in RMS cell lines. A 24-fold differential in AS-DACA cytotoxicity was detected between the RMS lines RD and Rh30. The effect of inhibitors of the endocytic pathway on AS-DACA sensitivity in RMS cell lines, coupled with the variations of endosomal marker expression, indicated the late endosomal/lysosomal compartment was implicated by confounding lines of evidence. Higher expression levels of Lysosomal-Associated Membrane Protein-1 (LAMP1) in the resistant RMS cell line, RD, provided correlations between the increased amount and activity of these compartments to AS-DACA resistance. The late endosomal inhibitor 3-methyladenine increased AS-DACA sensitivity solely in RD leading to the reduction of AS-DACA in membrane trafficking organelles. Acidification inhibitors did not produce an increase in AS-DACA sensitivity nor reduce its sequestration, indicating that the pH partitioning of weakly basic drugs into acidic compartments does not likely contribute to the AS-DACA sequestering resistance mechanism evident in RMS cells.

Wong, GY, Leung, FHF & Ling, SH 2013, 'Predicting Protein-Ligand Binding Site Using Support Vector Machine with Protein Properties', IEEE-ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS, vol. 10, no. 6, pp. 1517-1529.
View/Download from: Publisher's site
View description>>

Identification of protein-ligand binding site is an important task in structure-based drug design and docking algorithms. In the past two decades, different approaches have been developed to predict the binding site, such as the geometric, energetic, and sequence-based methods. When scores are calculated from these methods, the algorithm for doing classification becomes very important and can affect the prediction results greatly. In this paper, the support vector machine (SVM) is used to cluster the pockets that are most likely to bind ligands with the attributes of geometric characteristics, interaction potential, offset from protein, conservation score, and properties surrounding the pockets. Our approach is compared to LIGSITE, LIGSITEcsc, SURFNET, Fpocket, PocketFinder, Q-SiteFinder, ConCavity, and MetaPocket on the data set LigASite and 198 drug-target protein complexes. The results show that our approach improves the success rate from 60 to 80 percent at AUC measure and from 61 to 66 percent at top 1 prediction. Our method also provides more comprehensive results than the others.

Woodside, AG, Sood, S & Muniz, KM 2013, 'Creating and Interpreting Visual Storytelling Art in Extending Thematic Apperception Tests and Jung's Method of Interpreting Dreams', Advances in Culture, Tourism and Hospitality Research, vol. 7, pp. 15-45.
View/Download from: Publisher's site
View description>>

The main thesis here is that the stories that some brands tell to consumers enable consumers to achieve archetypal experiences. Examining the stories consumers tell in natural contexts involving shopping for and using brands informs explanations of associations of archetypes, brands, and consumers. The study advances the use of degrees-offreedom analysis (DFA) and creating visual narrative art (VNA) as useful steps for confirming or disconfirming whether or not the stories consumers tell have themes, events, and outcomes that match with the core storylines told by brands. As a proposal, an extension of thematic apperception tests (TATs) is relevant in applying the DFA to brand-consumer storytelling research. The study includes a review of early work on TATs, DFA, archetypal theory, and how brands become icons. The study's theory, method, and findings provide useful tools for brand managers and researchers on issues that relate to psychology and marketing. © 2013 by Emerald Group Publishing Limited.

Wu, C & Sheikh, H 2013, 'A finite element modelling to investigate the mitigation of blast effects on reinforced concrete panel using foam cladding', International Journal of Impact Engineering, vol. 55, pp. 24-33.
View/Download from: Publisher's site

Wu, C, Lukaszewicz, M, Schebella, K & Antanovskii, L 2013, 'Experimental and numerical investigation of confined explosion in a blast chamber', Journal of Loss Prevention in the Process Industries, vol. 26, no. 4, pp. 737-750.
View/Download from: Publisher's site
View description>>

An experimental blast program consisting of four tests was conducted in a blast chamber to investigate the effects of cylindrical charges on the peak reflected overpressure and impulse on the wall of the chamber. The charge mass varied from 0.095 kg to 0.2 kg and the standoff distance remained constant at 1.5 m and 1.3 m for the axial and radial directions, respectively. Eight pressure transducers were used in each test to measure the reflected overpressures on confined chamber walls at key locations. A high speed camera was used to record footage of each blast event. The test results indicated that UFC-3-340-02 (Unified Facilities Criteria, 2008) gives a significantly lower prediction for the axially oriented cylindrical charge, and also underestimates the radially oriented cylinder. Another purpose of the blast program was to develop an experimental data set which would validate the AUTODYN model. This would enable the validated AUTODYN model to be used with confidence to generate the overpressure and impulse distribution on a structural element for varying parameters such as the charge shape and charge orientations. Based on the simulated results a new blast model for cylindrical charges has been proposed by considering blast loading on the same level as the charge across the longitudinal direction. © 2013 Elsevier Ltd.

Wu, H, Liu, H & Liu, D 2013, 'Two-Dimensional Direction Recognition Using Uniaxial Tactile Arrays', IEEE Sensors Journal, vol. 13, no. 12, pp. 4897-4903.
View/Download from: Publisher's site
View description>>

To allow intuitive communication in human-robot cooperation through tactile information, this paper presents a method to recognize human intended direction in 2-D using a handlebar equipped with uniaxial tactile arrays. The method first extracts various features from the tactile images aiming to reduce computation complexity and increase recognition robustness. A support vector machines classifier was implemented for classifying the intended direction of humans using the extracted features. The algorithm efficiency of using different combinations of features has been investigated and compared through human user studies. In total, five human users in the project team were involved in this research. Experimental results show that the proposed method can achieve 91.7% recognition accuracy if both the training data and validation data contain tactile images from all the users. The method could still achieve 77.5% recognition accuracy when the training and validation data share no common user. © 2013 IEEE.

Wu, J, Luo, Z, Zhang, Y, Zhang, N & Chen, L 2013, 'Interval uncertain method for multibody mechanical systems using Chebyshev inclusion functions', International Journal for Numerical Methods in Engineering, vol. 95, no. 7, pp. 608-630.
View/Download from: Publisher's site
View description>>

SUMMARYThis study proposes a new uncertain analysis method for multibody dynamics of mechanical systems based on Chebyshev inclusion functions The interval model accounts for the uncertainties in multibody mechanical systems comprising uncertain‐but‐bounded parameters, which only requires lower and upper bounds of uncertain parameters, without having to know probability distributions. A Chebyshev inclusion function based on the truncated Chebyshev series, rather than the Taylor inclusion function, is proposed to achieve sharper and tighter bounds for meaningful solutions of interval functions, to effectively handle the overestimation caused by the wrapping effect, intrinsic to interval computations. The Mehler integral is used to evaluate the coefficients of Chebyshev polynomials in the numerical implementation. The multibody dynamics of mechanical systems are governed by index‐3 differential algebraic equations (DAEs), including a combination of differential equations and algebraic equations, responsible for the dynamics of the system subject to certain constraints. The proposed interval method with Chebyshev inclusion functions is applied to solve the DAEs in association with appropriate numerical solvers. This study employs HHT‐I3 as the numerical solver to transform the DAEs into a series of nonlinear algebraic equations at each integration time step, which are solved further by using the Newton–Raphson iterative method at the current time step. Two typical multibody dynamic systems with interval parameters, the slider crank and double pendulum mechanisms, are employed to demonstrate the effectiveness of the proposed methodology. The results show that the proposed methodology can supply sufficient numerical accuracy with a reasonable computational cost and is able to effectively handle the wrapping effect, as cosine functions are incorporated to sharpen the range of non‐monotonic interval functions. Copyright © 2013 ...

Wu, J, Peng, Z & Tipper, J 2013, 'Investigation of three-dimensional surface topographies and mechanical properties of hypothesized biological active wear particles from artificial joints', Wear, vol. 301, no. 1-2, pp. 182-187.
View/Download from: Publisher's site

Wu, J, Peng, Z & Tipper, J 2013, 'Mechanical Properties and Three-Dimensional Topological Characterisation of Micron, Submicron and Nanoparticles from Artificial Joints', Tribology Letters, vol. 52, no. 3, pp. 449-460.
View/Download from: Publisher's site

Wu, J, Wang, J, Lu, H, Dong, Y & Lu, X 2013, 'Short term load forecasting technique based on the seasonal exponential adjustment method and the regression model', Energy Conversion and Management, vol. 70, no. 1, pp. 1-9.
View/Download from: Publisher's site
View description>>

For an energy-limited economy system, it is crucial to forecast load demand accurately. This paper devotes to 1-week-ahead daily load forecasting approach in which load demand series are predicted by employing the information of days before being similar to that of the forecast day. As well as in many nonlinear systems, seasonal item and trend item are coexisting in load demand datasets. In this paper, the existing of the seasonal item in the load demand data series is firstly verified according to the Kendall τ correlation testing method. Then in the belief of the separate forecasting to the seasonal item and the trend item would improve the forecasting accuracy, hybrid models by combining seasonal exponential adjustment method (SEAM) with the regression methods are proposed in this paper, where SEAM and the regression models are employed to seasonal and trend items forecasting respectively. Comparisons of the quartile values as well as the mean absolute percentage error values demonstrate this forecasting technique can significantly improve the accuracy though models applied to the trend item forecasting are eleven different ones. This superior performance of this separate forecasting technique is further confirmed by the paired-sample T tests. © 2013 Elsevier B.V. All rights reserved.

Wu, Z, Xu, G, Lu, C, Chen, E, Zhang, Y & Zhang, H 2013, 'Position-wise contextual advertising: Placing relevant ads at appropriate positions of a web page', Neurocomputing, vol. 120, no. 1, pp. 524-535.
View/Download from: Publisher's site
View description>>

Web advertising, a form of online advertising, which uses the Internet as a medium to post product or service information and attract customers, has become one of the most important marketing channels. As one prevalent type of web advertising, contextual

Wyeth, P, Summerville, J & Adkins, B 2013, 'Playful Interactions for People with Intellectual Disabilities', Computers in Entertainment, vol. 11, no. 3, pp. 1-18.
View/Download from: Publisher's site
View description>>

For people with intellectual disabilities, there are significant barriers to inclusion in socially cooperative endeavors. This paper investigates the effectiveness of Stomp, a tangible user interface (TUI) designed to provide new participatory experiences for people with intellectual disability. Results from an observational study reveal the extent to which the Stomp system supports social and physical interaction. The tangible, spatial, and embodied qualities of Stomp result in an experience that does not rely on the acquisition of specific competencies before interaction and engagement can occur.

Xiao, J, Li, W, Corr, DJ & Shah, SP 2013, 'Effects of interfacial transition zones on the stress–strain behavior of modeled recycled aggregate concrete', Cement and Concrete Research, vol. 52, pp. 82-99.
View/Download from: Publisher's site
View description>>

Based on nanoindentation tests and analysis, the constitutive relationship of the Interfacial Transition Zones (ITZs) in Recycled Aggregate Concrete (RAC) is put forward. Together with the meso/micro-scale mechanical properties of each phase in Modeled Recycled Aggregate Concrete (MRAC), the plastic-damage constitutive models are employed in numerical studies on MRAC under uniaxial compression and uniaxial tension loadings to predict the overall mechanical behavior, particularly the stress-strain relationship. After the calibration and validation with the experimental results, a parametric study has been undertaken to analyze the effects of ITZs and new mortar matrix on the stress-strain relationship of MRAC. It is revealed that the mechanical properties of new mortar matrix and relative mechanical properties between ITZs and mortar matrices play a significant role in the overall stress-strain relationship and failure patterns of MRAC under both uniaxial compression and uniaxial tension loadings. © 2013 Elsevier Ltd. All rights reserved.

Xiao, J, Li, W, Corr, DJ & Shah, SP 2013, 'Simulation Study on the Stress Distribution in Modeled Recycled Aggregate Concrete under Uniaxial Compression', Journal of Materials in Civil Engineering, vol. 25, no. 4, pp. 504-518.
View/Download from: Publisher's site
View description>>

To investigate the stress distribution in recycled aggregate concrete (RAC) under uniaxial compression, modeled recycled aggregate concrete (MRAC) was studied by numerical simulation. The mechanical properties of interfacial transition zones (ITZs) of RAC were measured by the nanoindentation technique. A two-dimensional numerical study of the stress distribution characteristics of MRAC under the uniaxial compression is presented. The simulation was verified by experimental results. A parametric analysis is then conducted to study the sensitivity of each phase's mechanical properties and the amounts of old cement mortar in the MRAC. Simulation results demonstrate that a concentration of tensile stress and shear stress appears around new and old ITZ regions. It is found that when the elastic modulus of natural aggregates increases, the magnitude of tensile stress concentration becomes higher, whereas as the elastic modulus of ITZs increases, the magnitude of stress concentration decreases. It is also shown that the higher relative elastic modulus of new cement mortar compared with that of the old cement mortar significantly reduces the stress concentrations at the regions between recycled coarse aggregate particles. The amount of old cement mortar affects the stress distribution in the new ITZ much more obviously than that in the old ITZ. © 2013 American Society of Civil Engineers.

Xiao, J, Li, W, Sun, Z, Lange, DA & Shah, SP 2013, 'Properties of interfacial transition zones in recycled aggregate concrete tested by nanoindentation', Cement and Concrete Composites, vol. 37, no. 1, pp. 276-292.
View/Download from: Publisher's site
View description>>

The properties of new Interfacial Transition Zone (ITZ) and old ITZ in Recycled Aggregate Concrete (RAC) were investigated by Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM) and nanoindentation. From the SEM images, obvious voids and high concentration of calcium hydroxide can be found in both old ITZ and new ITZ in RAC. Based on the nanoindentation study, it is indicated that the thicknesses of old and new ITZs are in the range 40-50 μm and in the range 55-65 μm, respectively. It is also found that the average indentation modulus of old ITZ is 70-80% of that of old paste matrix, while the average indentation modulus of new ITZ is 80-90% of that of new paste matrix. Additionally, the influences of mix proportion, aggregate types and hydration age on the properties of ITZs in RAC are discussed in this study.© 2012 Elsevier Ltd. All rights reserved.

Xie, M, Nghiem, LD, Price, WE & Elimelech, M 2013, 'A Forward Osmosis-Membrane Distillation Hybrid Process for Direct Sewer Mining: System Performance and Limitations', ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 47, no. 23, pp. 13486-13493.
View/Download from: Publisher's site

Xie, M, Nghiem, LD, Price, WE & Elimelech, M 2013, 'Impact of humic acid fouling on membrane performance and transport of pharmaceutically active compounds in forward osmosis', WATER RESEARCH, vol. 47, no. 13, pp. 4567-4575.
View/Download from: Publisher's site

Xie, M, Price, WE, Nghiem, LD & Elimelech, M 2013, 'Effects of feed and draw solution temperature and transmembrane temperature difference on the rejection of trace organic contaminants by forward osmosis', JOURNAL OF MEMBRANE SCIENCE, vol. 438, pp. 57-64.
View/Download from: Publisher's site

Xie, W-M, Ni, B-J, Seviour, T & Yu, H-Q 2013, 'Evaluating the impact of operational parameters on the formation of soluble microbial products (SMP) by activated sludge', Water Research, vol. 47, no. 3, pp. 1073-1079.
View/Download from: Publisher's site

Xie, Y, Hu, J, Xiang, Y, Yu, S, Tang, S & Wang, Y 2013, 'Modeling Oscillation Behavior of Network Traffic by Nested Hidden Markov Model with Variable State-Duration', IEEE Transactions on Parallel and Distributed Systems, vol. 24, no. 9, pp. 1807-1817.
View/Download from: Publisher's site

Xin, J, Chen, K, Bai, L, Liu, D & Zhang, J 2013, 'Depth Adaptive Zooming Visual Servoing for a Robot with a Zooming Camera', International Journal of Advanced Robotic Systems, vol. 10, no. 2, pp. 120-120.
View/Download from: Publisher's site
View description>>

To solve the view visibility problem and keep the observed object in the field of view (FOV) during the visual servoing, a depth adaptive zooming visual servoing strategy for a manipulator robot with a zooming camera is proposed. Firstly, a zoom control mechanism is introduced into the robot visual servoing system. It can dynamically adjust the camera's field of view to keep all the feature points on the object in the field of view of the camera and get high object local resolution at the end of visual servoing. Secondly, an invariant visual servoing method is employed to control the robot to the desired position under the changing intrinsic parameters of the camera. Finally, a nonlinear depth adaptive estimation scheme in the invariant space using Lyapunov stability theory is proposed to estimate adaptively the depth of the image features on the object. Three kinds of robot 4DOF visual positioning simulation experiments are conducted. The simulation experiment results show that the proposed approach has higher positioning precision.

Xing, J, Yang, J-X, Li, A, Ma, F, Liu, K-X, Wu, D & Wei, W 2013, 'Removal Efficiency and Mechanism of Sulfamethoxazole in Aqueous Solution by Bioflocculant MFX', Journal of Analytical Methods in Chemistry, vol. 2013, pp. 1-8.
View/Download from: Publisher's site
View description>>

Although the treatment technology of sulfamethoxazole has been investigated widely, there are various issues such as the high cost, inefficiency, and secondary pollution which restricted its application. Bioflocculant, as a novel method, is proposed to improve the removal efficiency of PPCPs, which has an advantage over other methods. Bioflocculant MFX, composed by high polymer polysaccharide and protein, is the metabolism product generated and secreted byKlebsiellasp. In this paper, MFX is added to 1 mg/L sulfanilamide aqueous solution substrate, and the removal ratio is evaluated. According to literatures review, for MFX absorption of sulfanilamide, flocculant dosage, coagulant-aid dosage, pH, reaction time, and temperature are considered as influence parameters. The result shows that the optimum condition is 5 mg/L bioflocculant MFX, 0.5 mg/L coagulant aid, initial pH 5, and 1 h reaction time, and the removal efficiency could reach 67.82%. In this condition, MFX could remove 53.27% sulfamethoxazole in domestic wastewater, and the process obeys Freundlich equation.R2value equals 0.9641. It is inferred that hydrophobic partitioning is an important factor in determining the adsorption capacity of MFX for sulfamethoxazole solutes in water; meanwhile, some chemical reaction probably occurs.

Xinwang Liu, Jianping Yin, Lei Wang, Lingqiao Liu, Jun Liu, Chenping Hou & Jian Zhang 2013, 'An Adaptive Approach to Learning Optimal Neighborhood Kernels', IEEE Transactions on Cybernetics, vol. 43, no. 1, pp. 371-384.
View/Download from: Publisher's site
View description>>

Learning an optimal kernel plays a pivotal role in kernel-based methods. Recently, an approach called optimal neighborhood kernel learning (ONKL) has been proposed, showing promising classification performance. It assumes that the optimal kernel will reside in the neighborhood of a 'pre-specified' kernel. Nevertheless, how to specify such a kernel in a principled way remains unclear. To solve this issue, this paper treats the pre-specified kernel as an extra variable and jointly learns it with the optimal neighborhood kernel and the structure parameters of support vector machines. To avoid trivial solutions, we constrain the pre-specified kernel with a parameterized model. We first discuss the characteristics of our approach and in particular highlight its adaptivity. After that, two instantiations are demonstrated by modeling the pre-specified kernel as a common Gaussian radial basis function kernel and a linear combination of a set of base kernels in the way of multiple kernel learning (MKL), respectively. We show that the optimization in our approach is a min-max problem and can be efficiently solved by employing the extended level method and Nesterov's method. Also, we give the probabilistic interpretation for our approach and apply it to explain the existing kernel learning methods, providing another perspective for their commonness and differences. Comprehensive experimental results on 13 UCI data sets and another two real-world data sets show that via the joint learning process, our approach not only adaptively identifies the pre-specified kernel, but also achieves superior classification performance to the original ONKL and the related MKL algorithms. © 2012 IEEE.

Xinwang Liu, Lei Wang, Jianping Yin, En Zhu & Jian Zhang 2013, 'An Efficient Approach to Integrating Radius Information into Multiple Kernel Learning', IEEE Transactions on Cybernetics, vol. 43, no. 2, pp. 557-569.
View/Download from: Publisher's site
View description>>

Integrating radius information has been demonstrated by recent work on multiple kernel learning (MKL) as a promising way to improve kernel learning performance. Directly integrating the radius of the minimum enclosing ball (MEB) into MKL as it is, however, not only incurs significant computational overhead but also possibly adversely affects the kernel learning performance due to the notorious sensitivity of this radius to outliers. Inspired by the relationship between the radius of the MEB and the trace of total data scattering matrix, this paper proposes to incorporate the latter into MKL to improve the situation. In particular, in order to well justify the incorporation of radius information, we strictly comply with the radius-margin bound of support vector machines (SVMs) and thus focus on the ℓ2-norm soft-margin SVM classifier. Detailed theoretical analysis is conducted to show how the proposed approach effectively preserves the merits of incorporating the radius of the MEB and how the resulting optimization is efficiently solved. Moreover, the proposed approach achieves the following advantages over its counterparts: 1) more robust in the presence of outliers or noisy training samples; 2) more computationally efficient by avoiding the quadratic optimization for computing the radius at each iteration; and 3) readily solvable by the existing off-the-shelf MKL packages. Comprehensive experiments are conducted on University of California, Irvine, protein subcellular localization, and Caltech-101 data sets, and the results well demonstrate the effectiveness and efficiency of our approach. © 2012 IEEE.

Xinxing Xu, Tsang, IW & Dong Xu 2013, 'Soft Margin Multiple Kernel Learning', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 5, pp. 749-761.
View/Download from: Publisher's site
View description>>

Multiple kernel learning (MKL) has been proposed for kernel methods by learning the optimal kernel from a set of predefined base kernels. However, the traditional L1MKL method often achieves worse results than the simplest method using the average of base kernels (i.e., average kernel) in some practical applications. In order to improve the effectiveness of MKL, this paper presents a novel soft margin perspective for MKL. Specifically, we introduce an additional slack variable called kernel slack variable to each quadratic constraint of MKL, which corresponds to one support vector machine model using a single base kernel. We first show that L1MKL can be deemed as hard margin MKL, and then we propose a novel soft margin framework for MKL. Three commonly used loss functions, including the hinge loss, the square hinge loss, and the square loss, can be readily incorporated into this framework, leading to the new soft margin MKL objective functions. Many existing MKL methods can be shown as special cases under our soft margin framework. For example, the hinge loss soft margin MKL leads to a new box constraint for kernel combination coefficients. Using different hyper-parameter values for this formulation, we can inherently bridge the method using average kernel, L1MKL, and the hinge loss soft margin MKL. The square hinge loss soft margin MKL unifies the family of elastic net constraint/regularizer based approaches; and the square loss soft margin MKL incorporates L2MKL naturally. Moreover, we also develop efficient algorithms for solving both the hinge loss and square hinge loss soft margin MKL. Comprehensive experimental studies for various MKL algorithms on several benchmark data sets and two real world applications, including video action recognition and event recognition demonstrate that our proposed algorithms can efficiently achieve an effective yet sparse solution for MKL.

Xu, D-Y, Yang, S-L & Liu, R-P 2013, 'A mixture of HMM, GA, and Elman network for load prediction in cloud-oriented data centers', Journal of Zhejiang University SCIENCE C, vol. 14, no. 11, pp. 845-858.
View/Download from: Publisher's site
View description>>

The rapid growth of computational power demand from scientific, business, and Web applications has led to the emergence of cloud-oriented data centers. These centers use pay-as-you-go execution environments that scale transparently to the user. Load prediction is a significant cost-optimal resource allocation and energy saving approach for a cloud computing environment. Traditional linear or nonlinear prediction models that forecast future load directly from historical information appear less effective. Load classification before prediction is necessary to improve prediction accuracy. In this paper, a novel approach is proposed to forecast the future load for cloud-oriented data centers. First, a hidden Markov model (HMM) based data clustering method is adopted to classify the cloud load. The Bayesian information criterion and Akaike information criterion are employed to automatically determine the optimal HMM model size and cluster numbers. Trained HMMs are then used to identify the most appropriate cluster that possesses the maximum likelihood for current load. With the data from this cluster, a genetic algorithm optimized Elman network is used to forecast future load. Experimental results show that our algorithm outperforms other approaches reported in previous works. © 2013 Journal of Zhejiang University Science Editorial Office and Springer-Verlag Berlin Heidelberg.

Xu, G, Yu, J & Lee, W 2013, 'Guest editorial: social networks and social Web mining', World Wide Web, vol. 16, no. 5-6, pp. 541-544.
View/Download from: Publisher's site

Xu, G, Yu, J & Lee, W 2013, 'Guest editorial: Social networks and social Web mining', World Wide Web, vol. 16, no. 5-6, pp. 541-544.
View/Download from: Publisher's site
View description>>

NA

Xu, J, Fu, Q, Ren, JM, Bryant, G & Qiao, GG 2013, 'Novel drug carriers: from grafted polymers to cross-linked vesicles', Chem. Commun., vol. 49, no. 1, pp. 33-35.
View/Download from: Publisher's site

Xu, M, Xu, C, He, X, Jin, JS, Luo, S & Rui, Y 2013, 'Hierarchical affective content analysis in arousal and valence dimensions', Signal Processing, vol. 93, no. 8, pp. 2140-2150.
View/Download from: Publisher's site
View description>>

Different from the existing work focusing on emotion type detection, the proposed approach in this paper provides flexibility for users to pick up their favorite affective content by choosing either emotion intensity levels or emotion types. Specifically, we propose a hierarchical structure for movie emotions and analyze emotion intensity and emotion type by using arousal and valence related features hierarchically. Firstly, three emotion intensity levels are detected by using fuzzy c-mean clustering on arousal features. Fuzzy clustering provides a mathematical model to represent vagueness, which is close to human perception. Then, valence related features are used to detect five emotion types. Considering video is continuous time series data and the occurrence of a certain emotion is affected by recent emotional history, conditional random fields (CRFs) are used to capture the context information. Outperforming Hidden Markov Model, CRF relaxes the independence assumption for states required by HMM and avoids bias problem. Experimental results show that CRF-based hierarchical method outperforms the one-step method on emotion type detection. User study shows that majority of the viewers prefer to have option of accessing movie content by emotion intensity levels. Majority of the users are satisfied with the proposed emotion detection. © 2012 Elsevier B.V.

Xu, X, Guo, F, Lv, X, Feng, R, Min, D, Ma, L, Liu, Y, Zhao, J, Wang, L, Chen, T, Shaw, C, Hao, L & Cai, J 2013, 'Abnormal changes in voltage-gated sodium channels NaV1.1, NaV1.2, NaV1.3, NaV1.6 and in calmodulin/calmodulin-dependent protein kinase II, within the brains of spontaneously epileptic rats and tremor rats', Brain Research Bulletin, vol. 96, pp. 1-9.
View/Download from: Publisher's site

Xu, XX, Ding, MH, Zhang, JX, Zheng, W, Li, L & Zheng, YF 2013, 'A novel copper/polydimethiylsiloxane nanocomposite for copper‐containing intrauterine contraceptive devices', Journal of Biomedical Materials Research Part B: Applied Biomaterials, vol. 101, no. 8, pp. 1428-1436.
View/Download from: Publisher's site
View description>>

AbstractIn this article, a novel composite of copper (Cu) nanoparticles and polydimethiylsiloxane (PDMS) has been prepared and investigated for the potential application in Cu‐containing intrauterine device. The Cu/PDMS composite with various mass fraction of Cu nanoparticles was fabricated via the hot vulcanizing process. The chemical structures and surface morphologies of the Cu/PDMS composites were characterized confirming the physical interaction between Cu nanoparticles and PDMS. The surface morphology observation using scanning electron microscope and atomic force microscope showed the agglomeration of Cu nanoparticles in PDMS matrix and the distribution of the agglomerations was more uniform with increased amount of Cu nanoparticles. The cupric ion release behaviors of the Cu/PDMS composites with different amounts of Cu nanoparticles were investigated in simulated uterine fluid at 37°C for 150 days. The corrosion morphologies of the Cu/PDMS composites were also characterized. Both the burst release rate of the cupric ion in the first few days and the steady release rate after 30‐day immersion were improved. The cytotoxicity test has been done for the Cu/PDMS composites. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 101B: 1428–1436, 2013.

Xu, Y & Lee, JE-Y 2013, 'Does greater piezo-resistive transduction give rise to higher anchor loss in a square-extensional mode micromechanical resonator?', Sensors and Actuators A: Physical, vol. 202, pp. 111-117.
View/Download from: Publisher's site

Xu, Y, Shi, P, Merigó, JM & Wang, H 2013, 'Some proportional 2-tuple geometric aggregation operators for linguistic decision making', Journal of Intelligent & Fuzzy Systems, vol. 25, no. 3, pp. 833-843.
View/Download from: Publisher's site
View description>>

In this paper, we investigate decision making problems with fuzzy linguistic information. Motivated by the idea of proportional 2-tuple (PT), we develop some new aggregation operators such as PT weighted geometric averaging operator, PT ordered weighted geometric averaging operator and PT hybrid geometric averaging operator, which can be utilized to aggregate preference information taking the form of linguistic variables, and study some desirable properties. Based on the aforesaid operators, we develop a practical method for decision making under the PT linguistic environments. Finally, an example is given to verify the developed approach and demonstrate its practicality and effectiveness.

Xu, Z, Fitch, R, Underwood, J & Sukkarieh, S 2013, 'Decentralized Coordinated Tracking with Mixed Discrete-Continuous Decisions', JOURNAL OF FIELD ROBOTICS, vol. 30, no. 5, pp. 717-740.
View/Download from: Publisher's site
View description>>

The article examines the problem of dynamically positioning a team of mobile robots for target tracking. The optimization is inherently a function of both the positioning of robots in continuous space and the assignment of robots to targets in discrete space. In information-gathering tasks, a coordinated team of robots has clear advantages over any single robot. A single robot is forced to spread its attention among the targets being tracked, whereas a team of robots can divide-and conquer. Another advantage of teams is that they provide redundancy in case of individual robot failures, but only if the team is decentralized. One motivating example is the coordination of unmanned ground vehicles (UGV) to track pedestrians moving in a semiurban environment. Additionally, these approaches to solving the MINLP are centralized, while one wishes to have a decentralized solution. Thus, the challenge is to find a computationally efficient approximation to the MINLP that operates in a decentralized manner.

Yan, C, Yang, Y, Zhou, J, Liu, M, Nie, M, Shi, H & Gu, L 2013, 'Antibiotics in the surface water of the Yangtze Estuary: Occurrence, distribution and risk assessment', Environmental Pollution, vol. 175, pp. 22-29.
View/Download from: Publisher's site
View description>>

The occurrence and distribution of five groups of antibiotics were investigated in the surface water of Yangtze Estuary over four seasons. Of the 20 antibiotics, only sulfamerazine was not detected at all sampling sites, indicating widespread occurrence of antibiotic residues in the study area. Detection frequencies and concentrations of antibiotics were generally higher in January, indicating that low flow conditions and low temperature might enhance the persistence of antibiotics in water. Antibiotic levels varied with location, with the highest concentrations being observed around river discharge and sewage outfall. Furthermore, a positive correlation between total antibiotic and DOC concentrations revealed the significant role played by DOC. Risk assessment based on single compound exposure showed that sulfapyridine and sulfamethoxazole could cause medium risk to daphnid in the Yangtze Estuary. © 2012 Elsevier Ltd. All rights reserved.

Yang, C, Sheng, D, Carter, JP & Huang, J 2013, 'Stochastic Evaluation of Hydraulic Hysteresis in Unsaturated Soils', Journal of Geotechnical and Geoenvironmental Engineering, vol. 139, no. 7, pp. 1211-1214.
View/Download from: Publisher's site

Yang, C, Zhang, Q & Huang, S 2013, 'Input‐to‐state stability of a class of Lur'e descriptor systems', International Journal of Robust and Nonlinear Control, vol. 23, no. 12, pp. 1324-1337.
View/Download from: Publisher's site
View description>>

SUMMARYThis paper considers a class of Lur'e descriptor systems (LDS) subject to exogenous disturbances. The concept of input‐to‐state stability (ISS) is generalized to descriptor systems. Such a notion characterizes the robust stability of the full state of the systems. Based on the conventional ISS theory, a sufficient condition expressed by linear matrix inequalities (LMIs) for the LDS to be ISS is derived. It is further shown that this condition also guarantees a special class of LDS to be of index one. Then, a state feedback controller is designed to make the closed‐loop system ISS. Finally, an example is given to illustrate the obtained results. Copyright © 2012 John Wiley & Sons, Ltd.

Yang, F, Coughlin, DR, Phillips, PJ, Yang, L, Devaraj, A, Kovarik, L, Noebe, RD & Mills, MJ 2013, 'Structure analysis of a precipitate phase in an Ni-rich high-temperature NiTiHf shape memory alloy', Acta Materialia, vol. 61, no. 9, pp. 3335-3346.
View/Download from: Publisher's site

Yang, H, Zhang, YX & Lin, X 2013, 'Stress analyses of composite tee joints at elevated temperature', Journal of Adhesion Science and Technology, vol. 27, no. 17, pp. 1899-1910.
View/Download from: Publisher's site

Yang, J, Du, H, Li, W, Li, Y, Li, J, Sun, S & Deng, HX 2013, 'Experimental study and modeling of a novel magnetorheological elastomer isolator', SMART MATERIALS AND STRUCTURES, vol. 22, no. 11, pp. 1-14.
View/Download from: Publisher's site
View description>>

This paper reports an experimental setup aiming at evaluating the performance of a newly designed magnetorheological elastomer (MRE) seismic isolator. As a further effort to explore the field-dependent stiffness/damping properties of the MRE isolator, a series of experimental testing were conducted. Based upon the analysis of the experimental responses and the characteristics of the MRE isolator, a new model that is capable of reproducing the unique MRE isolator dynamics behaviors is proposed. The validation results verify the model's effectiveness to portray the MRE isolator. A study on the field-dependent parameters is then provided to make the model valid with fluctuating magnetic fields. To fully explore the mechanism of the proposed model, an investigation relating the dependence of the proposed model on every parameter is carried out. © 2013 IOP Publishing Ltd.

Yang, L, Deuse, J & Jiang, P 2013, 'Multi-objective optimization of facility planning for energy intensive companies', Journal of Intelligent Manufacturing, vol. 24, no. 6, pp. 1095-1109.
View/Download from: Publisher's site
View description>>

Because of the energy shortage and energy price rise, energy efficiency becomes a worldwide hot spot problem. It is not only a problem about cost reduction, but also a great contribute to the environmental protection. However, the energy efficiency was always ignored in the past decades. In order to gain more benefit and become more competitive in the market, energy efficiency should be considered as an essential factor in early planning phase. To overcome these problems, a new approach, which introduces energy efficiency as a key criterion into the planning process, is presented in this article. An energy recovery network is built according to the analysis of process and product demands. Afterwards the energy loss of the whole system, transport performance and space demand are simultaneously taken into account with the purpose of finding good facility planning from both energy and economic aspects. Finally, a practical expanding case is used to validate the correctness and effectiveness of the proposed approach. © 2012 Springer Science+Business Media, LLC.

Yang, L, Deuse, J & Jiang, P 2013, 'Multiple-attribute decision-making approach for an energy-efficient facility layout design', The International Journal of Advanced Manufacturing Technology, vol. 66, no. 5-8, pp. 795-807.
View/Download from: Publisher's site
View description>>

Due to the trends of energy shortage and energy price rise, energy efficiency, which was always ignored over the past decades, becomes a worldwide hot issue and also a significant challenge for most factories. Therefore, it is necessary to incorporate energy-relevant criterion as a key criterion with traditional criteria in the layout planning phase. As a multiattribute decision-making (MADM) problem, the evaluation and selection of facility layout alternatives are often difficult and time consuming since the criteria generally have different units and conflicting features. In this article, a MADM approach which incorporates the advantages of rough set theory, analytic hierarchy process (AHP), and technique for order preference by similarity to ideal solution (TOPSIS) is proposed to solve the facility layout design problem with considering both traditional layout criteria and energy relevant criteria. At first, rough set theory is integrated with AHP to determine the weights for each criterion of alternatives. Then, TOPSIS is applied to get the final alternative ranking. Besides, sensitivity analysis for both decision weights and production rates is performed, and a comparison among different decision-making approaches for the same problem is also studied to demonstrate the rationality of the final decision. Finally, a practical expanding case is studied to validate the proposed approach. © 2012 Springer-Verlag London Limited.

Yang, S, Hai, FI, Nghiem, LD, Nguyen, LN, Roddick, F & Price, WE 2013, 'Removal of bisphenol A and diclofenac by a novel fungal membrane bioreactor operated under non-sterile conditions', International Biodeterioration & Biodegradation, vol. 85, pp. 483-490.
View/Download from: Publisher's site

Yang, S, Hai, FI, Nghiem, LD, Price, WE, Roddick, F, Moreira, MT & Magram, SF 2013, 'Understanding the factors controlling the removal of trace organic contaminants by white-rot fungi and their lignin modifying enzymes: A critical review', Bioresource Technology, vol. 141, pp. 97-108.
View/Download from: Publisher's site

Yang, S, Hai, FI, Nghiem, LD, Roddick, F & Price, WE 2013, 'Removal of trace organic contaminants by nitrifying activated sludge and whole-cell and crude enzyme extract of Trametes versicolor', Water Science and Technology, vol. 67, no. 6, pp. 1216-1223.
View/Download from: Publisher's site
View description>>

The resistance of certain anthropogenic trace organic contaminants (TrOCs) to conventional wastewater treatment and their potential adverse effects on human and ecological health raise significant concerns and have prompted research on their bioremediation by white-rot fungi. This study compared the removal efficiencies of four widespread TrOCs: carbamazepine (CBZ), sulfamethoxazole (SMX), bisphenol A (BPA) and diclofenac (DCF), by nitrifying activated sludge as well as whole-cell and extracellular enzyme (laccase) extract of the white-rot fungus Trametes versicolor. Fungal whole-cell culture removed only BPA and DCF but with high efficiencies (&gt;90%) while the mixed nitrifying culture removed all compounds, although by levels of only 5–40%. Rapid initial sorption on fungal mycelium (44 ± 13% for DCF) was observed; however, biodegradation governed the overall removal. Performance comparison between fungal whole-cell and extracellular extract revealed that, unlike BPA, a catalytic pathway independent of extracellular laccase was responsible for DCF removal. Addition of mediator (1-hydroxybenzotriazole) to extracellular extract improved the removal of SMX which bears an electron donor group, but not that of the resistant compound CBZ.

Yang, S, Nguyen, ND, Center, JR, Eisman, JA & Nguyen, TV 2013, 'Association Between Abdominal Obesity and Fracture Risk: A Prospective Study', The Journal of Clinical Endocrinology & Metabolism, vol. 98, no. 6, pp. 2478-2483.
View/Download from: Publisher's site
View description>>

Context: Higher body weight is associated with greater bone mineral density (BMD) and lower fracture risk. However, the relationship between abdominal fat mass (aFM) and fracture risk is unclear because of limited prospective data. The present study sought to examine the association between aFM, BMD, and fracture risk. Methods: The study was designed as a prospective investigation, in which a sample of 1126 participants (360 men and 766 women) aged 50 years or older had been continuously followed up for an average of 5 years. The mean age of participants was 71 years (range, 57–94 years). At baseline, BMD at the femoral neck and lumbar spine and aFM were measured by dual-energy X-ray absorptiometry. The incidence of low-trauma and nonpathological fractures was ascertained prospectively from X-ray reports. Results: During the follow-up period, 19 men and 107 women had sustained a fracture. In women, each 1-kg lower aFM was associated with a 50% higher risk of fracture (hazard ratio [HR], 1.50; 95% confidence interval [CI], 1.10–2.05) after adjustment for age, femoral neck BMD, falls, stature, physical activity, and prior fracture. Subgroup analysis by fracture type found that the association was mainly observed in clinical vertebral fracture (HR, 1.96; 95% CI, 1.22–3.13). In men, although there was no statistically significant association between aFM and fracture risk (HR, 1.15; 95% CI, 0.58–2.25), the strength of this finding is affected negatively by the low number of fractures. Conclusions:

Yang, SN, Jiang, ZY & Wei, DB 2013, '3D Coupled Thermo-Mechanical FE Analysis of Surface Defects in Continuously Casting Slab', Applied Mechanics and Materials, vol. 275-277, pp. 2214-2220.
View/Download from: Publisher's site
View description>>

The behaviour of the surface defects on the continuous casting slab during hot rolling is investigated using the commercial FE-code LS-DYNA. The thermo-elastic-plastic material model is chosen in the simulation models, and the material implemented in the simulation is the austenitic stainless steel 304. The numerical results show the significant morphological changes of the surface defects during hot rolling and afford valuable indications for a deeper understanding of the underlying process. An accelerated crack growth and propagation are observed for the edge cracks, and the closure behaviour is found in the transverse and longitudinal cracks. The effect of temperature is significant on both the roll and the strip in hot rolling process. The developed models consider different types of mesh and element, thermal conditions, and rolling schedules. The predicted relationship between rolling conditions, the temperature distribution of crack, and the full history of temperature variation are discussed in this study.

Yang, W, Gao, Y & Cao, L 2013, 'TRASMIL: A local anomaly detection framework based on trajectory segmentation and multi-instance learning', Computer Vision and Image Understanding, vol. 117, no. 10, pp. 1273-1286.
View/Download from: Publisher's site
View description>>

Local anomaly detection refers to detecting small anomalies or outliers that exist in some subsegments of events or behaviors. Such local anomalies are easily overlooked by most of the existing approaches since they are designed for detecting global or large anomalies. In this paper, an accurate and flexible threephase framework TRASMIL is proposed for local anomaly detection based on TRAjectory Segmentation and Multi-Instance Learning. Firstly, every motion trajectory is segmented into independent subtrajectories, and a metric with Diversity and Granularity is proposed to measure the quality of segmentation. Secondly, the segmented sub-trajectories are modeled by a sequence learning model. Finally, multi-instance learning is applied to detect abnormal trajectories and sub-trajectories which are viewed as bags and instances, respectively. We validate the TRASMIL framework in terms of 16 different algorithms built on the three-phase framework. Substantial experiments show that algorithms based on the TRASMIL framework outperform existing methods in effectively detecting the trajectories with local anomalies in terms of the whole trajectory. In particular, the MDL-C algorithm (the combination of HDP-HMM with MDL segmentation and Citation kNN) achieves the highest accuracy and recall rates. We further show that TRASMIL is generic enough to adopt other algorithms for identifying local anomalies. Crown Copyright © 2012 Published by Elsevier Inc. All rights reserved.

Yang, X, Tao, X, Dutkiewicz, E, Huang, X, Guo, YJ & Cui, Q 2013, 'Energy-Efficient Distributed Data Storage for Wireless Sensor Networks Based on Compressed Sensing and Network Coding', IEEE Transactions on Wireless Communications, vol. 12, no. 10, pp. 5087-5099.
View/Download from: Publisher's site
View description>>

Recently, distributed data storage (DDS) for Wireless Sensor Networks (WSNs) has attracted great attention, especially in catastrophic scenarios. Since power consumption is one of the most critical factors that affect the lifetime of WSNs, the energy efficiency of DDS in WSNs is investigated in this paper. Based on Compressed Sensing (CS) and network coding theories, we propose a Compressed Network Coding based Distributed data Storage (CNCDS) scheme by exploiting the correlation of sensor readings. The CNCDS scheme achieves high energy efficiency by reducing the total number of transmissions Nttot and receptions Nrtot during the data dissemination process. Theoretical analysis proves that the CNCDS scheme guarantees good CS recovery performance. In order to theoretically verify the efficiency of the CNCDS scheme, the expressions for Nttot and Nrtot are derived based on random geometric graphs (RGG) theory. Furthermore, based on the derived expressions, an adaptive CNCDS scheme is proposed to further reduce N ttot and Nrtot. Simulation results validate that, compared with the conventional ICStorage scheme, the proposed CNCDS scheme reduces Nttot, Nrtot, and the CS recovery mean squared error (MSE) by up to 55%, 74%, and 76% respectively. In addition, compared with the CNCDS scheme, the adaptive CNCDS scheme further reduces Nttot and N rtot by up to 63% and 32% respectively. © 2002-2012 IEEE.

Yang-Yin Lin, Jyh-Yeong Chang & Chin-Teng Lin 2013, 'Identification and Prediction of Dynamic Systems Using an Interactively Recurrent Self-Evolving Fuzzy Neural Network', IEEE Transactions on Neural Networks and Learning Systems, vol. 24, no. 2, pp. 310-321.
View/Download from: Publisher's site
View description>>

This paper presents a novel recurrent fuzzy neural network, called an interactively recurrent self-evolving fuzzy neural network (IRSFNN), for prediction and identification of dynamic systems. The recurrent structure in an IRSFNN is formed as an external loops and internal feedback by feeding the rule firing strength of each rule to others rules and itself. The consequent part in the IRSFNN is composed of a Takagi-Sugeno-Kang (TSK) or functional-link-based type. The proposed IRSFNN employs a functional link neural network (FLNN) to the consequent part of fuzzy rules for promoting the mapping ability. Unlike a TSK-type fuzzy neural network, the FLNN in the consequent part is a nonlinear function of input variables. An IRSFNNs learning starts with an empty rule base and all of the rules are generated and learned online through a simultaneous structure and parameter learning. An on-line clustering algorithm is effective in generating fuzzy rules. The consequent update parameters are derived by a variable-dimensional Kalman filter algorithm. The premise and recurrent parameters are learned through a gradient descent algorithm. We test the IRSFNN for the prediction and identification of dynamic plants and compare it to other well-known recurrent FNNs. The proposed model obtains enhanced performance results. © 2012 IEEE.

Yatawatta, S, de Bruyn, AG, Brentjens, MA, Labropoulos, P, Pandey, VN, Kazemi, S, Zaroubi, S, Koopmans, LVE, Offringa, AR, Jelić, V, Martinez Rubi, O, Veligatla, V, Wijnholds, SJ, Brouw, WN, Bernardi, G, Ciardi, B, Daiboo, S, Harker, G, Mellema, G, Schaye, J, Thomas, R, Vedantham, H, Chapman, E, Abdalla, FB, Alexov, A, Anderson, J, Avruch, IM, Batejat, F, Bell, ME, Bell, MR, Bentum, M, Best, P, Bonafede, A, Bregman, J, Breitling, F, van de Brink, RH, Broderick, JW, Brüggen, M, Conway, J, de Gasperin, F, de Geus, E, Duscha, S, Falcke, H, Fallows, RA, Ferrari, C, Frieswijk, W, Garrett, MA, Griessmeier, JM, Gunst, AW, Hassall, TE, Hessels, JWT, Hoeft, M, Iacobelli, M, Juette, E, Karastergiou, A, Kondratiev, VI, Kramer, M, Kuniyoshi, M, Kuper, G, van Leeuwen, J, Maat, P, Mann, G, McKean, JP, Mevius, M, Mol, JD, Munk, H, Nijboer, R, Noordam, JE, Norden, MJ, Orru, E, Paas, H, Pandey-Pommier, M, Pizzo, R, Polatidis, AG, Reich, W, Röttgering, HJA, Sluman, J, Smirnov, O, Stappers, B, Steinmetz, M, Tagger, M, Tang, Y, Tasse, C, ter Veen, S, Vermeulen, R, van Weeren, RJ, Wise, M, Wucknitz, O & Zarka, P 2013, 'Initial deep LOFAR observations of epoch of reionization windows', Astronomy & Astrophysics, vol. 550, pp. A136-A136.
View/Download from: Publisher's site

Yazdani, D, Nasiri, B, Azizi, R, Sepas-Moghaddam, A & Reza Meybodi, M 2013, 'Optimization in dynamic environments utilizing a novel method based on particle swarm optimization', International Journal of Artificial Intelligence, vol. 11, no. 13 A, pp. 170-192.
View description>>

In numerous real world optimization problems, objective function or constraints of the problem can be changed during time. If these undefined situations are occurred in optimization process, this problem is called dynamic. There are several challenges in dynamic environments optimization, so that algorithms designed for optimization in these environments would utilize several mechanisms in order to conquer the challenges. In this paper, a novel algorithm for optimization in dynamic environments is proposed based on particle swarm optimization in which a novel mechanism have been used for improving the performance. In this mechanism, it is tried to increase the ability of local search around optimum with focusing on best found peak in each environments. The results of the proposed approach are evaluated on moving peak benchmarks and are compared with results of several state of the art algorithms. Experimental results show the superiority of the proposed method. © 2013 by IJAI.

Yazdani, D, Nasiri, B, Sepas-Moghaddam, A & Meybodi, MR 2013, 'A novel multi-swarm algorithm for optimization in dynamic environments based on particle swarm optimization', Applied Soft Computing, vol. 13, no. 4, pp. 2144-2158.
View/Download from: Publisher's site
View description>>

Optimization in dynamic environment is considered among prominent optimization problems. There are particular challenges for optimization in dynamic environments, so that the designed algorithms must conquer the challenges in order to perform an efficient optimization. In this paper, a novel optimization algorithm in dynamic environments was proposed based on particle swarm optimization approach, in which several mechanisms were employed to face the challenges in this domain. In this algorithm, an improved multi-swarm approach has been used for finding peaks in the problem space and tracking them after an environment change in an appropriate time. Moreover, a novel method based on change in velocity vector and particle positions was proposed to increase the diversity of swarms. For improving the efficiency of the algorithm, a local search based on adaptive exploiter particle around the best found position as well as a novel awakening-sleeping mechanism were utilized. The experiments were conducted on Moving Peak Benchmark which is the most well-known benchmark in this domain and results have been compared with those of the state-of-the art methods. The results show the superiority of the proposed method. © 2013 Elsevier B.V. All rights reserved.

Yazdani, D, Saman, B, Sepas-Moghaddam, A, Mohammad-Kazemi, F & Reza Meybodi, M 2013, 'A new algorithm based on improved artificial fish swarm algorithm for data clustering', International Journal of Artificial Intelligence, vol. 11, no. 13 A, pp. 193-221.
View description>>

Artificial Fish Swarm Algorithm (AFSA) is one of the state-of-the-art swarm intelligence approaches that is widely used for optimization purposes. On the other hand, data clustering is an unsupervised classification technique which has been addressed by researchers in many disciplines and in many contexts. The contribution toward this study is twofold. First, weak points of standard AFSA including lack of using previous experiences of AFs during optimization process, lack of existing balance between exploration and exploitation and high computational load were investigated in order to present a New Artificial Fish Swarm Algorithm (NAFSA). For resolving the weak points, functional behaviors and the overall procedure of AFSA have been improved. In addition, some parameters are eliminated and several supplementary parameters are added. Subsequently, a hybrid clustering algorithm was proposed based on NAFSA and k-means approaches. This combination leads to maximum utilization of the involved approaches for data clustering. The proposed methods were evaluated on several datasets and its efficiency was compared with that of several state-of-art algorithms in this domain. Results showed high efficiency of the proposed algorithm. © 2013 by IJAI.

Ye, S, Liang, X, Wang, W, Geng, J, Jin, R, Guo, YJ & Bird, TS 2013, 'Design of Arbitrarily Shaped Planar Microstrip Antenna Arrays with Improved Efficiency', International Journal of Antennas and Propagation, vol. 2013, pp. 1-10.
View/Download from: Publisher's site
View description>>

A design technique is described for an arbitrarily shaped planar microstrip antenna array with improved radiation efficiency. In order to fully utilize the limited antenna aperture, several basic modules are proposed from which we construct the array. A consideration of the aperture shape shows that with several practical examples a proper combination of these basic modules not only allows the convenient design of arbitrarily-shaped microstrip array, but also helps to improve the aperture radiation efficiency. To confirm the feasibility of the approach, a circular array with 256 elements was constructed and fabricated. Both computed and measured aperture radiation results are compared and these demonstrate that the design technique is effective for arbitrarily-shaped planar microstrip arrays.

Yeap, KB, Iacopi, F, Geisler, H, Hangen, U & Zschech, E 2013, 'Nanoindentation for reliability assessment of ULK films and interconnects structures', Microelectronic Engineering, vol. 106, pp. 182-187.
View/Download from: Publisher's site
View description>>

© 2012 Elsevier B.V. All rights reserved. The structural integrity of interconnect structures containing ultra-low-k (ULK) dielectrics is highly dependent on the mechanical properties of the porous dielectrics, e.g. fracture toughness elastic modulus and adhesion as well. Four-point-bending (FPB) and double-cantilever-beam (DCB) methods for the evaluation of fracture properties require out-of-fab sample preparation and testing. The reliable characterization of interfacial adhesion is important for in-line/at-line process development and control in microelectronics manufacturing. The ability to detect an out-of-spec or defective ULK film at an early process step could potentially save processing and materials cost. Therefore, the development of quick turnaround experimental methodologies for monitoring in-line/at-line mechanical stability of ULK films and ULK-containing interconnects is of great interest for semiconductor industry. This study presents two novel experimental approaches for the evaluation of interface adhesion and mechanical robustness of on-chip interconnects structures based on nanoindentation and nanoscratch, (a) wedge indentation and (b) bump assisted BEOL stability indentation (BABSI) tests, respectively. Wedge indentation tests on ULK films with increasing porosity show a decrease of adhesion values. Correspondingly, BABSI tests show increasing failure rates for Cu/ULK interconnect structures containing mechanically weaker dielectrics.

Ying, M, Yu, N, Feng, Y & Duan, R 2013, 'Verification of quantum programs', SCIENCE OF COMPUTER PROGRAMMING, vol. 78, no. 9, pp. 1679-1700.
View/Download from: Publisher's site
View description>>

This paper develops verification methodology for quantum programs, and the contribution of the paper is two-fold. Sharir, Pnueli and Hart [M. Sharir, A. Pnueli, S. Hart, Verification of probabilistic programs, SIAM Journal of Computing 13 (1984) 292-314] presented a general method for proving properties of probabilistic programs, in which a probabilistic program is modeled by a Markov chain and an assertion on the output distribution is extended to an invariant assertion on all intermediate distributions. Their method is essentially a probabilistic generalization of the classical Floyd inductive assertion method. In this paper, we consider quantum programs modeled by quantum Markov chains which are defined by super-operators. It is shown that the Sharir-Pnueli-Hart method can be elegantly generalized to quantum programs by exploiting the Schrödinger-Heisenberg duality between quantum states and observables. In particular, a completeness theorem for the Sharir-Pnueli-Hart verification method of quantum programs is established.As indicated by the completeness theorem, the Sharir-Pnueli-Hart method is in principle effective for verifying all properties of quantum programs that can be expressed in terms of Hermitian operators (observables). But it is not feasible for many practical applications because of the complicated calculation involved in the verification. For the case of finite-dimensional state spaces, we find a method for verification of quantum programs much simpler than the Sharir-Pnueli-Hart method by employing the matrix representation of super-operators and Jordan decomposition of matrices. In particular, this method enables us to compute easily the average running time and to analyze some interesting long-run behaviors of quantum programs in a finite-dimensional state space. © 2012 Elsevier B.V. All rights reserved.

Ying, S & Ying, M 2013, 'Removing measurements from quantum walks', PHYSICAL REVIEW A, vol. 87, no. 1, pp. 1-9.
View/Download from: Publisher's site
View description>>

Quantum walks are very useful tools in designing quantum algorithms. Amplitude amplification is a key technique to increase the success probability of a quantum-walk-based algorithm, and it is quadratically faster than classical probabilistic amplification. However, amplitude amplification only applies to quantum walks with one-shot hitting time, where no measurements except a final one are performed, and not to quantum walks with concurrent hitting time, where measurements happen or absorbing boundaries exist at each step. In this paper, we propose a procedure to modify quantum walks with concurrent hitting time by removing measurements from them. This procedure enables us to use amplitude amplification to design algorithms based on the modified quantum walks which are faster than those based on the original walks with a concurrent hitting time and more robust than those based on the corresponding walks with a one-shot hitting time.

Yiwei Yu, Dutkiewicz, E, Xiaojing Huang & Mueck, M 2013, 'Downlink Resource Allocation for Next Generation Wireless Networks with Inter-Cell Interference', IEEE Transactions on Wireless Communications, vol. 12, no. 4, pp. 1783-1793.
View/Download from: Publisher's site
View description>>

This paper presents a novel downlink resource allocation scheme for OFDMA-based next generation wireless networks subject to inter-cell interference (ICI). The scheme consists of radio resource and power allocations, which are implemented separately. Low-complexity heuristic algorithms are first proposed to achieve the radio resource allocation, where graph-based framework and fine physical resource block (PRB) assignment are performed to mitigate major ICI and hence improve the network performance. Given the solution of radio resource allocation, a novel distributed power allocation is then performed to optimize the performance of cell-edge users under the condition that desirable performance for cell-center users must be maintained. The power optimization is formulated as an iterative barrier-constrained water-filling problem and solved by using the Lagrange method. Simulation results indicate that our proposed scheme can achieve significantly balanced performance improvement between cell-edge and cell-center users in multi-cell networks compared with other schemes, and therefore realize the goal of future wireless networks in terms of providing high performance to anyone from anywhere. © 2002-2012 IEEE.

Young, JA, Ting, KK, Li, J, Moller, T, Dunn, L, Lu, Y, Lay, AJ, Moses, J, Prado-Lourenço, L, Khachigian, LM, Ng, M, Gregory, PA, Goodall, GJ, Tsykin, A, Lichtenstein, I, Hahn, CN, Tran, N, Shackel, N, Kench, JG, McCaughan, G, Vadas, MA & Gamble, JR 2013, 'Regulation of vascular leak and recovery from ischemic injury by general and VE-cadherin–restricted miRNA antagonists of miR-27', Blood, vol. 122, no. 16, pp. 2911-2919.
View/Download from: Publisher's site
View description>>

Key Points Blockmirs are designed against the miR-27 binding site in VE-cadherin and display restricted specificity. Blockmirs regulate VE-cadherin and endothelial cell junctions, inhibit edema, and promote angiogenesis associated with ischemia.

Yu, D, Merigó, JM & Zhou, L 2013, 'Interval-valued multiplicative intuitionistic fuzzy preference relations', International Journal of Fuzzy Systems, vol. 15, no. 4, pp. 412-422.
View description>>

Inspired by the idea of multiplicative intuitionistic preference relation (Xia MM et al. Preference relations based on intuitionistic multiplicative information, IEEE Transactions on Fuzzy Systems, 2013, 21(1): 113-133), in this paper, a new preference relation called the interval-valued multiplicative intuitionistic preference relation is developed. It is analyzed the basic operations for interval-valued multiplicative intuitionistic preference information and its aggregation techniques. An interval-valued multiplicative intuitionistic group decision making model is presented in which experts provide their preference relation by interval-valued multiplicative intuitionistic fuzzy expressions, and give a real case about talent introduction in Zhejiang University of Finance and Economics to illustrate our methods. © 2013 TFSA.

Yu, D, Nanda, P & He, X 2013, 'Wireless Sensor Network (WSN) Energy Efficiency Challenge from Implementation Perspectives', Advanced Science Letters, vol. 19, no. 2, pp. 642-645.
View/Download from: Publisher's site
View description>>

Through review of current Wireless Sensor Network (WSN) energy preserving techniques used in industry and academic research, we recognize that the integration of various techniques through implementation is a challenging task due to application specific nature of system integration. On one hand, most researches on energy efficiency focus on one single layer with perfect assumptions about other layers and environment parameters. While this methodology will simplify the design process and provide valuable insight into single layer solution, such approach cannot provide information on layer incompatibilities between different sets of protocols, nor will give information on the overall performance of a network based on the protocols under test. Further more, under various non-standard assumptions, the real contribution of these proposed optimization methods are difficult to be achieved if not impossible. Hence industry professionals become very cautious to integrate diverse and advance ad hoc solutions into their products and standards. To show credibility of the ad hoc solutions and their implications on industry applications, researchers have to evaluate their solutions under a generic architecture Which can test different scenarios and evaluate performance based on a wide range of metrics. © 2013 American Scientific Publishers All rights reserved.

Yu, D, Nanda, P, Cao, L & He, X 2013, 'TCTM: an evaluation framework for architecture design on wireless sensor networks', International Journal of Sensor Networks, vol. 14, no. 3, pp. 168-168.
View/Download from: Publisher's site
View description>>

This paper presents an evaluation framework for architecture designs on wireless sensor networks (WSNs). We introduce a simple evaluation model: triangular constraint tradeoffs model (TCTM) to grasp the essence of the architecture design consideration under transient wireless media characteristic and stringent limitation on energy and computing resource of WSNs. Based on this evaluation framework, we investigate the existing architectures proposed in literature from three main competing constraint aspects, namely generality, cost, and performance. Two important concepts: performance efficiency and deployment efficiency are identified and distinguished in overall architecture efficiency. With this powerful abstract and simple model, we describe the motivations of major body of WSNs architectures proposed in current literature. We also analyse the fundamental advantage and limitations of each class of architectures from TCTM perspective. We foresee the influence of evolving technology to futuristic architecture design. We believe our efforts will serve as a reference to orient researchers and system designers in this area

Yu, K & Dutkiewicz, E 2013, 'NLOS Identification and Mitigation for Mobile Tracking', IEEE Transactions on Aerospace and Electronic Systems, vol. 49, no. 3, pp. 1438-1452.
View/Download from: Publisher's site
View description>>

A non-line-of-sight (NLOS) mitigation approach is presented for network-based mobile tracking. A distance smoothing method is proposed, which uses online line-of-sight (LOS) and NLOS identification. A technique is proposed to integrate distance, mobile velocity, and heading estimates for position determination through Kalman filtering. Hypothesis testing analysis is performed to provide a guideline for selecting the threshold values. Simulation results demonstrate that the proposed approach significantly improves position accuracy as compared with the existing algorithms. © 1965-2011 IEEE.

Yu, N, Duan, R & Ying, M 2013, 'Five two-qubit gates are necessary for implementing the Toffoli gate', PHYSICAL REVIEW A, vol. 88, no. 1.
View/Download from: Publisher's site
View description>>

In this Rapid Communication, we consider the open problem of the minimum cost of two-qubit gates for simulating the Toffoli gate and show that five two-qubit gates are necessary. Before our work, it was known that five two-qubit gates are sufficient to implement the Toffoli gate, and numerical evidence indicates that five two-qubit gates are also necessary. The idea introduced here can also be used to solve the problem of optimal simulation of Deutsch three-qubit gates. © 2013 American Physical Society.

Yu, X, Jiang, Z, Wei, D, Zhou, C, Huang, Q & Yang, D 2013, 'Tribological properties of magnetite precipitate from oxide scale in hot-rolled microalloyed steel', Wear, vol. 302, no. 1-2, pp. 1286-1294.
View/Download from: Publisher's site
View description>>

Nano-magnetite (Fe3O4) particles have a potential to lead to the formation of lubrication tribofilm that reduces the friction and wear in hot steel strip rolling. In this paper, an attempt to fabricate the oxide film with magnetite precipitates from thermally-grown wustite (Fe1-xO) layer during isothermal cooling of low carbon microalloyed steel, was obtained. The precipitation behaviors were investigated on Gleeble 3500 thermo-mechanical simulator under the humid air with water vapour content of 19.5 vol%. Several types of magnetite precipitates were examined using scanning electron microscope (SEM) with energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) analysis. The tribological properties of magnetite precipitates were investigated in pin-on-disc configuration. It was found that the dispersed magnetite particles originate from either the pro-eutectoid precipitation above 570 degrees C or the partial decomposition of wustite below 570 degrees C. The oxide film on the presence of free particles during eutectoid precipitation could be a lubricant and consequently resist wear, particularly for the oxide scale with a typical thickness in the range of 8 to 11 mu m in dry air and moisture atmosphere. Furthermore, characterisation and precipitation process of the oxide scale are discussed, with respect to a probable mechanism to explain the lubricated properties has been proposed.

Yu, XL, Jiang, ZY, Zhao, JW, Wei, DB & Zhou, CL 2013, 'Effect of Cooling Rate on Oxidation Behaviour of Microalloyed Steel', Applied Mechanics and Materials, vol. 395-396, pp. 273-278.
View/Download from: Publisher's site
View description>>

Oxidation characteristics of a microalloyed low carbon steel were investigated by a hot rolling mill combined with acceleration cooling system over the cooling rate range from 20 to 70°C/s. The effects of cooling rate after hot rolling on microstructure and phase composition of oxide scale were examined. The results showed that the increase of the cooling rate has a significant influence on the decrease of the grain size and surface roughness of oxide scale. A higher cooling rate promotes the formation of retain wustite and primary magnetite precipitation while suppression of eutectoid α-iron precipitates. This provides the possibility to enhance potential contribution of magnetite precipitates with preferable ductility, and hence fabricates a desired oxide-scale structure under continuous post cooling conditions considering a suitable cooling rate.

Yuan, S, Skinner, B, Huang, S & Liu, D 2013, 'A new crossover approach for solving the multiple travelling salesmen problem using genetic algorithms', European Journal of Operational Research, vol. 228, no. 1, pp. 72-82.
View/Download from: Publisher's site
View description>>

This paper proposes a new crossover operator called two-part chromosome crossover (TCX) for solving the multiple travelling salesmen problem (MTSP) using a genetic algorithm (GA) for near-optimal solutions. We adopt the two-part chromosome representation technique which has been proven to minimise the size of the problem search space. Nevertheless, the existing crossover method for the two-part chromosome representation has two limitations. Firstly, it has extremely limited diversity in the second part of the chromosome, which greatly restricts the search ability of the GA. Secondly, the existing crossover approach tends to break useful building blocks in the first part of the chromosome, which reduces the GA's effectiveness and solution quality. Therefore, in order to improve the GA search performance with the two-part chromosome representation, we propose TCX to overcome these two limitations and improve solution quality. Moreover, we evaluate and compare the proposed TCX with three different crossover methods for two MTSP objective functions, namely, minimising total travel distance and minimising longest tour. The experimental results show that TCX can improve the solution quality of the GA compared to three existing crossover approaches. © 2013 Elsevier B.V. All rights reserved.

Yun, GJ, Rahimi, MR, Gandomi, AH, Lim, G-C & Choi, J-S 2013, 'Stress sensing performance using mechanoluminescence of SrAl₂O₄:Eu (SAOE) and SrAl₂O₄:Eu, Dy (SAOED) under mechanical loadings', Smart Materials and Structures, vol. 22, no. 5, pp. 055006-055006.
View/Download from: Publisher's site

Zamee, MA 2013, 'Load Frequency Control of Interconnected Hydro-Thermal Power System Using Conventional PI and Fuzzy Logic Controller', International Journal of Energy and Power Engineering, vol. 2, no. 5, pp. 191-191.
View/Download from: Publisher's site

Zare Borzeshi, E, Piccardi, M, Riesen, K & Bunke, H 2013, 'Discriminative prototype selection methods for graph embedding', Pattern Recognition, vol. 46, no. 6, pp. 1648-1657.
View/Download from: Publisher's site
View description>>

Graphs possess a strong representational power for many types of patterns. However, a main limitation in their use for pattern analysis derives from their difficult mathematical treatment. One way of circumventing this problem is that of transforming the graphs into a vector space by means of graph embedding. Such an embedding can be conveniently obtained by using a set of prototype graphs and a dissimilarity measure. However, when we apply this approach to a set of class-labelled graphs, it is challenging to select prototypes capturing both the salient structure within each class and inter-class separation. In this paper, we introduce a novel framework for selecting a set of prototypes from a labelled graph set taking their discriminative power into account. Experimental results showed that such a discriminative prototype selection framework can achieve superior results in classification compared to other well-established prototype selection approaches. © 2012 Elsevier Ltd.

Zare, M, Pourghasemi, HR, Vafakhah, M & Pradhan, B 2013, 'Landslide susceptibility mapping at Vaz Watershed (Iran) using an artificial neural network model: a comparison between multilayer perceptron (MLP) and radial basic function (RBF) algorithms', Arabian Journal of Geosciences, vol. 6, no. 8, pp. 2873-2888.
View/Download from: Publisher's site

Zarifi, F, Mahlia, TMI, Motasemi, F, Shekarchian, M & Moghavvemi, M 2013, 'Current and future energy and exergy efficiencies in the Iran’s transportation sector', Energy Conversion and Management, vol. 74, pp. 24-34.
View/Download from: Publisher's site

Zarjam, P, Epps, J, Chen, F & Lovell, NH 2013, 'Estimating cognitive workload using wavelet entropy-based features during an arithmetic task', Computers in Biology and Medicine, vol. 43, no. 12, pp. 2186-2195.
View/Download from: Publisher's site

Zeng, J, Guo, Y, Li, Y, Zhu, J & Li, J 2013, 'Two-dimensional magnetic property measurement for magneto-rheological elastomer', JOURNAL OF APPLIED PHYSICS, vol. 113, no. 17.
View/Download from: Publisher's site

ZENG, S, LI, WEI & MERIGÓ, JM 2013, 'EXTENDED INDUCED ORDERED WEIGHTED AVERAGING DISTANCE OPERATORS AND THEIR APPLICATION TO GROUP DECISION-MAKING', International Journal of Information Technology & Decision Making, vol. 12, no. 04, pp. 789-811.
View/Download from: Publisher's site
View description>>

The induced ordered weighted averaging distance (IOWAD) approach is very suitable in situations in which the available information is represented with exact numerical values. In this paper, we develop some extended IOWAD operators: the linguistic induced ordered weighted averaging distance (LIOWAD) operator, the uncertain induced ordered weighted averaging distance (UIOWAD) operator and the fuzzy induced ordered weighted averaging distance (FIOWAD) operator. Their main objective is to assess uncertain situations in which the available information is given in the form of linguistic variables, interval numbers and fuzzy numbers. Some special cases of these three new extensions are studied. Finally, we develop an application of the new operators in a group decision-making problem under an uncertain environment and illustrate it with a numerical example.

Zeng, S, Merigó, JM & Su, W 2013, 'The uncertain probabilistic OWA distance operator and its application in group decision making', Applied Mathematical Modelling, vol. 37, no. 9, pp. 6266-6275.
View/Download from: Publisher's site

Zhang, J, He, R & Liu, X 2013, 'Efficient visible light driven photocatalytic hydrogen production from water using attapulgite clay sensitized by CdS nanoparticles', Nanotechnology, vol. 24, no. 50, pp. 505401-505401.
View/Download from: Publisher's site

Zhang, J, Huang, ML & Hoang, D 2013, 'Visual analytics for intrusion detection in spam emails', International Journal of Grid and Utility Computing, vol. 4, no. 2/3, pp. 178-178.
View/Download from: Publisher's site
View description>>

Spam email attacks are increasing at an alarming rate and have become more and more cunning in nature. This has necessitated the need for visual spam email analysis within an intrusion detection system to identify these attacks. The challenges are how to increase the accuracy of detection and how to visualise large volumes of spam email to better understand the analysis results and identify email attacks. This paper proposes a Density-Weight model that is to strengthen and extend the system capacity for analysis of network attacks in spam emails, including DDoS attacks. An interactive visual clustering method DA-TU is introduced to classify and display spam emails. The experimental results have shown that the proposed new model has improved the accuracy of intrusion detection and provides a better understanding of the nature of spam email attacks on though the network. Copyright © 2013 Inderscience Enterprises Ltd.

Zhang, J, Wang, W & Liu, X 2013, 'Ag–ZnO hybrid nanopyramids for high visible-light photocatalytic hydrogen production performance', Materials Letters, vol. 110, pp. 204-207.
View/Download from: Publisher's site

Zhang, J, Xu, W, Gao, C, Wang, S, Qiu, J, Zhu, JG & Guo, Y 2013, 'Analysis of Inter-Turn Insulation of High Voltage Electrical Machine by Using Multi-Conductor Transmission Line Model', IEEE Transactions on Magnetics, vol. 49, no. 5, pp. 1905-1908.
View/Download from: Publisher's site
View description>>

In this paper, the inter-turn insulation of stator winding is comprehensively discussed. An equivalent circuit model and a multi-conductor transmission line (MTL) theory are established for the inter-turn voltage evaluation under the switching-impulse voltage, respectively. The distributed inductances are calculated by using small-signal analysis in finite element method (FEM) and the ac resistances of coils are analyzed considering the skin effect. The distributed capacitances of the coils are determined by using both electric field FEM and analytic equations. The electric potential distribution of inter-turn is calculated by the above two methods. The incident and reflect voltages are calculated by using the MTL model. The electric field of inter-turn calculated by using the FEM is presented. The FEM is used for the calculation of the inter-turn electric field distribution. The position where the inter-turn insulation may be more prone to breakdown is determined according to the result. Finally, the impact factors of inter-turn insulation including insulation materials and positions of failure in winding are analyzed in detail.

Zhang, JA 2013, 'Response to 'On Mathematical Equivalence Between Vector OFDM and Quadrature OFDMA'', IEEE Transactions on Communications, vol. 61, no. 2, pp. 815-815.
View/Download from: Publisher's site

Zhang, JA, Collings, IB, Chen, CS, Roullet, L, Luo, L, Ho, S-W & Yuan, J 2013, 'Evolving small-cell communications towards mobile-over-FTTx networks', IEEE Communications Magazine, vol. 51, no. 12, pp. 92-101.
View/Download from: Publisher's site
View description>>

Small cell techniques are recognized as the best way to deliver high capacity for broadband cellular communications. Femtocell and distributed antenna systems (DASs) are important components in the overall small cell story, but are not the complete solution. They have major disadvantages of very limited cooperation capability and expensive deployment cost, respectively. In this article, we propose a novel mobile-over-FTTx (MoF) network architecture, where an FTTx network is enhanced as an integrated rather than a simple backhauling component of a new mobile network delivering low-cost and powerful small cell solutions. In part, the MoF architecture combines the advantages of femtocells and DASs, while overcoming their disadvantages. Implementation challenges and potential solutions are discussed. Simulation results are presented and demonstrate the strong potential of the MoF in boosting the capacity of mobile networks. © 1979-2012 IEEE.

Zhang, JA, Huang, X, Suzuki, H & Chen, Z 2013, 'Gaussian Approximation Based Interpolation for Channel Matrix Inversion in MIMO-OFDM Systems', IEEE Transactions on Wireless Communications, vol. 12, no. 3, pp. 1407-1417.
View/Download from: Publisher's site
View description>>

Channel matrix inversion, which requires significant hardware resource and computational power, is a very challenging problem in MIMO-OFDM systems. Casting the frequency-domain channel matrix into a polynomial matrix, interpolation-based matrix inversion provides a promising solution to this problem. In this paper, we propose novel algorithms for interpolation based matrix inversion, which require little prior information of the channel matrix and enable the use of simple low-complexity interpolators such as spline and low pass filter interpolators. By invoking the central limit theorem, we show that a Gaussian approximation function well characterizes the power of the polynomial coefficients. Some low-complexity and efficient schemes are then proposed to estimate the parameters of the Gaussian function. With these estimated parameters, we introduce phase shifted interpolation and propose two algorithms which can achieve good interpolation accuracy using general low-complexity interpolators. Simulation results show that up to 85% complexity saving can be achieved with small performance degradation. © 2002-2012 IEEE.

Zhang, JA, Lin Luo & Xiaojing Huang 2013, 'Multicarrier Systems Based on Multistage Layered IFFT Structure', IEEE Signal Processing Letters, vol. 20, no. 7, pp. 665-668.
View/Download from: Publisher's site
View description>>

This letter extends our previous work on layered inverse Fast Fourier Transform (IFFT) structure to a multistage layered IFFT structure where data symbols can input at different stages of the IFFT. We first show that part of the IFFT in the transmitter of an OFDM system can be shifted to the receiver, while a conventional one-tap frequency-domain equalizer is still applicable. We then propose two IFFT split schemes based on decimation-in-time and decimation-in-frequency IFFT algorithms to enable interference-free symbol recovery with simple linear equalizers. Applications of the proposed schemes in multiple access communications are investigated. Simulation results demonstrate the effectiveness of the proposed schemes in improving bit-error-rate performance. © 1994-2012 IEEE.

Zhang, JA, Yang, TT & Chen, Z 2013, 'Under-determined Training and Estimation for Distributed Transmit Beamforming Systems', IEEE Transactions on Wireless Communications, vol. 12, no. 4, pp. 1936-1946.
View/Download from: Publisher's site
View description>>

Distributed transmit beamforming (DTB) can significantly boost the signal-to-noise ratio (SNR) of a wireless communication system. To realize the benefits of DTB, generating and feeding back beamforming vector are very challenging tasks. Existing schemes have either enormous overhead or weak robustness in noisy channels. In this paper, we investigate the design of training sequences and beamforming vector estimators in DTB systems. We consider an under-determined case, where the length of training sequence N sent from each node is smaller than the number of source nodes M. We derive the optimal estimation of the beamforming vector that maximizes the beamforming gain and show that it can be well approximated as the linear minimum mean square error (LMMSE) estimator. Based on the LMMSE estimator, we investigate the optimal design of training sequences and propose efficient DTB schemes. We analytically show that these schemes can achieve approximately N times increased SNR in uncorrelated channels, and even higher gain in correlated ones. We also propose a concatenated training scheme which optimally combines the training signals over multiple frames to obtain the beamforming vector. Simulation results demonstrate that the proposed DTB schemes can yield significant gains even at very low SNRs, with total feedback bits much less than those required in the existing schemes. © 2002-2012 IEEE.

Zhang, L, Guo, Y, Sun, J, Yu, X & Zhang, S 2013, 'Object tracking by feedback update scheme with sparsity constraint', Qinghua Daxue Xuebao/Journal of Tsinghua University, vol. 53, no. 11, pp. 1531-1535.
View description>>

A tracking algorithm using sparse representation with respect to a template set is described to improve tracking performance in challenging scenarios, such as severe occlusions and drastic illumination variations. The feature space is constructed using both the gray-scale and pixel-level features stored in a template set. Then, the candidates are decomposed via sparse representation. The coefficients are used to estimate the likelihood of the candidates belonging to the target in the particle filtering framework. A robust update scheme with feedback is given for the templates. A large number of tests on benchmark video sequences demonstrate that the algorithm outperforms several other state of the art trackers in challenging scenarios.

Zhang, Q, Jiang, ZY, Wei, DB, Xie, GL & Han, JT 2013, 'Friction Evolution in Running-In of Sliding Wear of Cast Iron Processed in Gleeble', Advanced Materials Research, vol. 797, pp. 713-718.
View/Download from: Publisher's site
View description>>

As limited results were reported in terms of the evolution of sliding friction with growth of oxide layer in thickness during running-in, a pin-on-disc wear test was carried out in this study. 4.8Ni-1.5Cr cast iron as core layer and low carbon steel as outer layers, were thermo-mechanically processed via three different routes. For samples with lower hardness due to their predominantly austenitic or martensite retarded matrices, we found that initially rapid increase of thickness of oxide layer continually lowers the sliding friction. However, after the oxide layer was beyond a certain thickness, the sliding friction began to increase consecutively. After a fluctuation of friction caused by the break-down of oxide, a mild equilibrium wear with roughly constant friction followed.

Zhang, Q, Jiang, ZY, Wei, DB, Zhu, HT, Chen, ZX, Han, JT & Xie, GL 2013, 'Interface adhesion during sliding wear in cast iron after hot deformation', Wear, vol. 301, no. 1-2, pp. 598-607.
View/Download from: Publisher's site
View description>>

Interface adhesion between cast iron substrate and oxide layer formed during dry unidirectional sliding wear was studied by using thermo-mechanically processed 4.8Ni-1.5Cr cast iron. The purpose of the present work is to reveal the difference of the adhesion behaviour between martensitic matrix with a higher hardness and austenitic matrix with low hardness. The 4.8Ni-1.5Cr alloy was sandwiched as a middle layer with low carbon steel as outer layers and thermo-mechanically processed via (1) hot rolling (HR), (2) hot rolling and heat treatment (HT), and (3) hot rolling, heat treatment and hot compression (HC), respectively. The applied normal loads were 20 and 40 N, and the sliding speeds were 45 and 78 mm/s in sliding wear test. The durations of the wear test were 2 and 7 min, respectively for different testing rounds. It was found that the wear after running-in was always mild under the conditions of 20 N and 45 mm/s or 20 N and 78 mm/s for all the tested samples. Prior to the transition into mild oxidational wear, negative displacements of pins were observed for HT and HC samples when the applied load was raised to 40 N at the sliding speed of 78 mm/s. No similar response was observed for HR sample under the same testing condition. The possible mechanisms for the negative displacement of pin in the test are discussed in terms of the microstructure and phases of the testing samples. The effect of the hardness of the substrate on the growth and integrity of the oxide film formed during the sliding and the interface adhesion between the oxide film and substrate are also discussed.

Zhang, Q, Wang, S, Qiu, J, Jing, X, Gao, C, Zhu, JG & Guo, Y 2013, 'Application of an Improved Multi-Conductor Transmission Line Model in Power Transformer', IEEE Transactions on Magnetics, vol. 49, no. 5, pp. 2029-2032.
View/Download from: Publisher's site
View description>>

In this paper, a new multi-conductor transmission line (MTL) method is introduced to analyze the voltage distribution of power transformer windings, including inserted capacitance continuous winding and duplex winding, under lightning overvoltage excitation. This new MTL model may take into account electromagnetic induction between windings. The influences of copper screen tapes on the MTL parameters are discussed. The terminal conditions of single winding including screen tape differ from those of duplex windings, which have to be carefully considered. The results are compared with the traditional equivalent circuit model, revealing that the new model may provide detailed accurate voltage distribution on each turn of the windings.

Zhang, T, Du, J, Guo, YJ & Sun, X 2013, 'A 7–8.5 GHz High Performance MMIC HTS Josephson Mixer', IEEE Microwave and Wireless Components Letters, vol. 23, no. 8, pp. 427-429.
View/Download from: Publisher's site
View description>>

A low-loss, low power consumption monolithic high-temperature superconducting (HTS) Josephson junction mixer at 7-8.5 GHz is presented. The mixer consists of a HTS YBa 2Cu 3O 7-x (YBCO) bandpass filter for RF input, a lowpass filter for IF output and a LO resonator integrated with a single Josephson junction. All the passive and active devices are fabricated on a 20 mmtimes 10 mm MgO substrate. Measurement result shows a conversion gain of -7 dB at 40 K, and -4.7 dB at 20 K. The IF output versus the RF input exhibits a wide linear range of conversion gains. The mixer has an extremely low LO power requirement at -32 dBm and a 50 nW power consumption. © 2001-2012 IEEE.

Zhang, T, Du, J, Guo, YJ & Sun, X 2013, 'A compact HTS bandpass microstrip filter with novel coupling structure for on-chip integration', Physica C: Superconductivity, vol. 495, pp. 69-73.
View/Download from: Publisher's site
View description>>

A compact low-complexity high-selectivity high-temperature superconducting (HTS) microstrip bandpass filter is presented in this paper, which consists of only three half-wavelength resonators. A novel coupling scheme is used to provide a pair of transmission zeros outside the passband, so that the selectivity of the filter is improved. The filter is fabricated on an MgO substrate with YBa 2 Cu 3 O 7-x (YBCO) coating. Measurement result shows an in-band insertion loss at 0.5 dB, a sharp slope, and a stopband rejection better than 20 dB. The compactness and high-selectivity features make the filter suitable for on-chip integration of HTS receiver front-ends. © 2013 Published by Elsevier B.V. All rights reserved.

Zhang, W & Lee, JE-Y 2013, 'A Horseshoe Micromachined Resonant Magnetic Field Sensor With High Quality Factor', IEEE Electron Device Letters, vol. 34, no. 10, pp. 1310-1312.
View/Download from: Publisher's site

Zhang, W & Lee, JE-Y 2013, 'Characterization and modeling of electro-thermal frequency tuning in a mechanical resonator with integral crossbar heaters', Sensors and Actuators A: Physical, vol. 202, pp. 69-74.
View/Download from: Publisher's site

Zhang, W, Lin, X, Zhang, Y, Wang, W, Zhu, G & Xu Yu, J 2013, 'Probabilistic skyline operator over sliding windows', Information Systems, vol. 38, no. 8, pp. 1212-1233.
View/Download from: Publisher's site
View description>>

Skyline computation has many applications including multi-criteria decision making. In this paper, we study the problem of efficiently computing the skyline over sliding windows on uncertain data elements against probability thresholds. Firstly, we characterize the properties of elements to be kept in our computation. Then, we show the size of dynamically maintained candidate set and the size of skyline. Novel, efficient techniques are developed to process continuous probabilistic skyline queries over sliding windows. Finally, we extend our techniques to cover the applications where multiple probability thresholds are given, 'top-k' skyline data objects are retrieved, or elements have individual life-spans. Our extensive experiments demonstrate that the proposed techniques are very efficient and can handle a high-speed data stream in real time. © 2013 Elsevier Ltd. All rights reserved.

Zhang, X, Krabbenhoft, K, Pedroso, DM, Lyamin, AV, Sheng, D, da Silva, MV & Wang, D 2013, 'Particle finite element analysis of large deformation and granular flow problems', Computers and Geotechnics, vol. 54, pp. 133-142.
View/Download from: Publisher's site

Zhang, X, Zhu, X, Xing, R, Yang, X, Jiang, F, Li, H, Peng, J, Dai, N & Li, J 2013, 'Microstructure core photonic crystal fiber for blue extension of supercontinuum generation', Optics Communications, vol. 298-299, pp. 191-195.
View/Download from: Publisher's site

Zhang, Y, Chan, GSH, Tracy, MB, Hinder, M, Savkin, AV & Lovell, NH 2013, 'Detrended fluctuation analysis of blood pressure in preterm infants with intraventricular hemorrhage', Medical & Biological Engineering & Computing, vol. 51, no. 9, pp. 1051-1057.
View/Download from: Publisher's site

Zhang, Y, Guo, Y, Wang, X, Zhu, D & Porter, AL 2013, 'A hybrid visualisation model for technology roadmapping: bibliometrics, qualitative methodology and empirical study', Technology Analysis & Strategic Management, vol. 25, no. 6, pp. 707-724.
View/Download from: Publisher's site

Zhang, YX & Lin, X 2013, 'Nonlinear Finite Element Analyses of Steel/FRP-Reinforced Concrete Beams by Using a Novel Composite Beam Element', Advances in Structural Engineering, vol. 16, no. 2, pp. 339-352.
View/Download from: Publisher's site
View description>>

A simple displacement-based one-dimensional two-node layered composite beam element with only two degrees of freedom per node is developed based on Timoshenko's composite beam functions for nonlinear finite element analyses of steel/FRP-reinforced concrete beams in this paper. Timoshenko's composite beam functions are employed to represent the displacement interpolation functions, and thus the element gives a unified formulation for both slender and moderately deep composite beams and the notorious shear-locking problem is avoided naturally. Geometric nonlinearity and material nonlinearity are included in the new model, and tension-stiffening effect after cracking is also accounted for. The proposed composite beam element is validated against numerical examples, and it is demonstrated to be accurate and effective for analyses of slender and moderately deep composite beams even with very coarse meshes. The element is then employed to analyse the nonlinear structural behaviour of composite steel/FRP-reinforced concrete beams with different parameters, such as different types of reinforcing bars (steel, GFRP, CFRP and BFRP) and different ratios of reinforcement, and the influences of these parameters on the structural behaviour are investigated. The progressive cracking processes of the concrete beams with the increase of loading are also modelled using the proposed element and the results are presented in this paper.

Zhang, Z, Lin, H, Liu, K, Wu, D, Zhang, G & Lu, J 2013, 'A hybrid fuzzy-based personalized recommender system for telecom products/services', INFORMATION SCIENCES, vol. 235, no. 1, pp. 117-129.
View/Download from: Publisher's site
View description>>

The Internet creates excellent opportunities for businesses to provide personalized online services to their customers. Recommender systems are designed to automatically generate personalized suggestions of products/services to customers. Because various uncertainties exist within both product and customer data, it is a challenge to achieve high recommendation accuracy. This study develops a hybrid recommendation approach which combines user-based and item-based collaborative filtering techniques with fuzzy set techniques and applies it to mobile product and service recommendation. It particularly implements the proposed approach in an intelligent recommender system software called Fuzzy-based Telecom Product Recommender System (FTCP-RS). Experimental results demonstrate the effectiveness of the proposed approach and the initial application shows that the FTCP-RS can effectively help customers to select the most suitable mobile products or services. © 2012 Elsevier Inc. All rights reserved.

Zhao, JW, Jiang, ZY & Wei, DB 2013, 'Analysis of Elemental Segregation in a Microalloyed Cast Steel', Advanced Materials Research, vol. 652-654, pp. 2465-2468.
View/Download from: Publisher's site
View description>>

Quantitative investigation is made on the elemental segregation in different zones of a heavy microalloyed cast steel by energy dispersive X-ray spectroscopy. It is demonstrated that C shows serious segregation tendency than that of Mn and Si, and the degree of C segregation in the surface zone is higher than that in the central zone. C enrichment is generally observed at both dendrite arm and grain boundaries, and more C segregation at dendrite arm boundary in contrast to that at grain boundary is found in this steel. The distribution of C concentration shows a decreased trend from root to tip along the dendrite arm boundary. The C concentration at trigeminal boundary intersection shows higher level than that at other position of the grain boundaries.

Zhao, JW, Jiang, ZY, Wei, DB & Lee, CS 2013, 'Process Design Strategies for Producing Heavy Section Steel with Improved Quality', Advanced Materials Research, vol. 652-654, pp. 988-991.
View/Download from: Publisher's site
View description>>

Uniformity of microstructure and mechanical properties is required for the heavy section steel. In the present work, a heavy section wind tower flange was manufactured by controlled ring-rolling. Post-rolling heat treatment was employed to optimize the microstructure and mechanical properties. The chemical composition, microstructure and mechanical properties in different zones of the flange were investigated. The results showed that the chemical composition and microstructure were uniformly distributed in the flange. The tensile strength showed similar values in different sampling locations. The strain and impact energies of specimens prepared along the longitudinal direction were higher than that prepared along both the radius and thickness directions. Notch direction did not have noticeable effect on the impact energy. It is demonstrated that the designed process is effective for producing heavy section steel with improved quality.

Zhao, Q, Liang, B & Duan, F 2013, 'Combination of improved PCA and LDA for video-based face recognition', Journal of Computational Information Systems, vol. 9, no. 1, pp. 273-280.
View description>>

While face recognition from a still image has been extensively studied over a decade, video-based face recognition is an emerging topic. One of the hard problems in this area is how to effectively recognize human face with illumination variations. To address the problem, a novel approach is presented in this paper. Firstly, in the context of Principal Component Analysis, the image enhancement is introduced to solve the problem of illumination variations. Then, the improved PCA is combined with LDA to recognize human faces in video sequences. Recognition is performed using the Euclidean distance to compute distances between the target face and gallery video sequences. The experiment demonstrates that our method recognizes target faces accurately and robustly. © 2013 Binary Information Press.

Zhao, YX, Gao, BY, Qi, QB, Wang, Y, Phuntsho, S, Kim, J-H, Yue, QY, Li, Q & Shon, HK 2013, 'Cationic polyacrylamide as coagulant aid with titanium tetrachloride for low molecule organic matter removal', JOURNAL OF HAZARDOUS MATERIALS, vol. 258, no. 1, pp. 84-92.
View/Download from: Publisher's site
View description>>

This is the first attempt to use cationic polyacrylamide (PAM) as coagulant aid with titanium tetrachloride (TiCl4) to improve the coagulation performance and floc properties. Coagulation-flocculation treatment was applied to simulated water (with fulvic acid (FA) as model organic matter) for both coagulation behavior investigation and floc characterization. The effect of PAM on floc reformation properties after cyclic breakage/regrowth was also investigated. Ultrafiltration experiments were performed to investigate the influence of PAM aided TiCl4 coagulation on the membrane fouling. The results showed that organic removal was enhanced by PAM addition at low TiCl4 doses. Floc growth rate and floc size were significantly affected by dosing sequence. TiCl4-PAM significantly improved the floc strength factors (Sf) and recovery factors (Rf). The dosing sequence of TiCl4 and PAM significantly influenced the floc structure. Characterization of the flocculated sludge indicated that TiO2 with anatase structure and high photocatalytic activity could be obtained from the TiCl4-PAM flocculated sludge. © 2013 Elsevier B.V.

Zhao, YX, Gao, BY, Shon, HK, Qi, QB, Phuntsho, S, Wang, Y, Yue, QY, Li, Q & Kim, J-H 2013, 'Characterization of coagulation behavior of titanium tetrachloride coagulant for high and low molecule weight natural organic matter removal: The effect of second dosing', CHEMICAL ENGINEERING JOURNAL, vol. 228, no. 1, pp. 516-525.
View/Download from: Publisher's site
View description>>

A two-stage titanium tetrachloride (TiCl4) dosing strategy is applied for investigating the coagulation effect on simulated water containing humic acid (HA) and fulvic acid (FA) and these represent the dissolved organic matter (DOM). The influence of second TiCl4 dose on coagulation efficiency, flock re-growth and the fractal dimension properties is studied for the beneficial effect of the second coagulant dose. Moreover, the impact of increased shear on the ultra filtration permeate flux in coagulation-ultra filtration (C-UF) hybrid process is explored. A small second dose essentially decreases the residual turbidity and improves the organic matter removal. Also, flocks with larger size and better recoverability result and having more compact structure than those obtained without the second TiCl4 coagulant dose. At the same total TiCl4 coagulant concentrations, the two-stage dosing mode reveals significant advantage over the single coagulant dosing in terms of turbidity removal, flock size and recoverability although organic matter removal and flock compactness degree are more or less deteriorated during the two-stage dosing process. The second TiCl4 dose contributes to larger re-generated flocks with better re-growth ability than those obtained without the second dose within a wide range of high shear rate and even with prolonged breaking period. Two-stage dosing mode could improve the ultra filtration permeate flux under certain shear conditions. An extension in breakage time leads to much severer flux decline than short breakage periods. In case of FA simulated water, the ultra filtration permeate flux was less sensitive to increasing shear rate than in case of HA simulated water. © 2013 Elsevier B.V.

Zhao, YX, Gao, BY, Zhang, GZ, Phuntsho, S, Wang, Y, Yue, QY, Li, Q & Shon, HK 2013, 'Comparative study of floc characteristics with titanium tetrachloride against conventional coagulants: Effect of coagulant dose, solution pH, shear force and break-up period', CHEMICAL ENGINEERING JOURNAL, vol. 233, pp. 70-79.
View/Download from: Publisher's site
View description>>

Characteristics of flocs formed by titanium tetrachloride (TiCl4), ferric chloride (FeCl3) and aluminum sulfate (Al2(SO4)3) were comparatively investigated in terms of floc growth rate, size, strength, recoverability and fractal dimension in real water treatment. Impacts of coagulant dose, solution pH and hydraulic conditions, including shear force and break-up period, on floc properties were investigated. Results showed that the floc size followed the order of TiCl4FeCl3Al2(SO4)3 within the dose range investigated. The response of floc strength to coagulant dose depended on the coagulant used, while the floc recoverability decreased with the increasing dose regardless of the coagulant used. Within the solution pH range investigated, the floc strength and recoverability showed the following order of Al2(SO4)3FeCl3TiCl4 and those of TiCl4 were the least affected by solution pH. Additionally, the floc strength decayed with the increasing shear force and break-up period for the three coagulants. TiCl4 yielded the flocs with the weakest recoverability within both the shear force and break-up period ranges investigated. Moreover, the floc compactness followed the order of FeCl3TiCl4Al2(SO4)3 under either shear force condition. © 2013 Elsevier Ltd.

Zhao, YX, Phuntsho, S, Gao, BY, Huang, X, Qi, QB, Yue, QY, Wang, Y, Kim, J-H & Shon, HK 2013, 'Preparation and Characterization of Novel Polytitanium Tetrachloride Coagulant for Water Purification', ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 47, no. 22, pp. 12966-12975.
View/Download from: Publisher's site
View description>>

Polymeric metal coagulants are increasingly being used to improve coagulation efficiency, yet the research on the development of titanium and particularly polytitanium salts remains limited. This study is the first attempt in the synthesis, characterization, and application of polytitanium salts as coagulants. Polytitanium tetrachloride (PTC) solutions with different basicity values B (OH/Ti molar ratio) were prepared using a slow alkaline titration method. Jar tests were conducted to assess coagulation performance using both synthetic and real raw water samples, and the floc characteristics were monitored online using a laser diffraction particle size analyzer. Electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS) was utilized to identify various Ti species, with the results providing strong evidence of the presence of various hydrolyzed Ti species in the titanium aqueous phase. Compared to titanium tetrachloride (TiCl4), higher or comparable turbidity and organic matter removal efficiency could be achieved by PTC with improved floc characteristics in terms of size, growth rate, and structure. Besides, the water pH after PTC coagulation was significantly improved toward neutral pH. This study indicates that PTC is an effective and promising coagulant for water purification. Besides, the PTC flocculated sludge was able to recycle and produce functional TiO2 photocatalyst. © 2013 American Chemical Society.

Zheng, W, Wang, G, Zhao, G, Wei, D & Jiang, Z 2013, 'Modeling and analysis of dry friction in micro-forming of metals', Tribology International, vol. 57, pp. 202-209.
View/Download from: Publisher's site
View description>>

The Tabor friction model was modified by introducing the friction factor. Based on the multi-region model, the micro-uniaxial compression process was simulated to study the size effect considering dry friction. It was found that the grain-boundary has little effect on the dry friction behavior. The mechanical properties of individual grains either in the contact area or in the non-contact area have a significant influence on the friction behavior. With decrease of specimen"s size, the average friction coefficient did not vary much but the value of friction coefficient of each random grain orientation distribution becomes more dispersive. (C) 2012 Elsevier Ltd. All rights reserved.

Zhou, J, Cao, L & Yang, N 2013, 'On the convergence of some possibilistic clustering algorithms', Fuzzy Optimization and Decision Making, vol. 12, no. 4, pp. 415-432.
View/Download from: Publisher's site
View description>>

In this paper, an analysis of the convergence performance is conducted for a class of possibilistic clustering algorithms (PCAs) utilizing the Zangwill convergence theorem. It is shown that under certain conditions the iterative sequence generated by a PCA converges, at least along a subsequence, to either a local minimizer or a saddle point of the objective function of the algorithm. The convergence performance of more general PCAs is also discussed. © 2013 Springer Science+Business Media New York.

Zhou, J, Xiao, C & Takatsuka, M 2013, 'A multi-dimensional importance metric for contour tree simplification', Journal of Visualization, vol. 16, no. 4, pp. 341-349.
View/Download from: Publisher's site

Zhu, H & Chu, Q-X 2013, 'Compact Ultra-Wideband (UWB) Bandpass Filter Using Dual-Stub-Loaded Resonator (DSLR)', IEEE Microwave and Wireless Components Letters, vol. 23, no. 10, pp. 527-529.
View/Download from: Publisher's site

Zhu, H & Chu, Q-X 2013, 'Ultra-Wideband Bandpass Filter With a Notch-Band Using Stub-Loaded Ring Resonator', IEEE Microwave and Wireless Components Letters, vol. 23, no. 7, pp. 341-343.
View/Download from: Publisher's site

Zhu, XQ, Hao, H & Fan, KQ 2013, 'Detection of delamination between steel bars and concrete using embedded piezoelectric actuators/sensors', Journal of Civil Structural Health Monitoring, vol. 3, no. 2, pp. 105-115.
View/Download from: Publisher's site
View description>>

© Springer-Verlag Berlin Heidelberg 2013. The interface between concrete and steel in reinforced concrete governs the interaction between the two types of materials under loading. When the interface is seriously damaged, such that a macro-crack is formed, debonding may take place or large slip may occur, and the load-transferring capacity of the interface would drop dramatically. This paper presents a novel technique to detect the delamination between the steel bars and concrete in the reinforced concrete structures. The piezoelectric components are mounted on reinforcing bars embedded in RC structures as sensors and actuators to generate the signal, which is sensitive to the delamination between the steel bars and concrete. The experimental study is carried out on two concrete slabs with different debonds between the rebars and concrete. Three parameters are calculated from the measured responses and used to indicate the bonding damage. The test results show that the debond damage between the rebars and concrete can be detected with the embedded piezoelectric sensors and actuators.

Zhu, Y, Gupta, B, Guan, B, Ciampi, S, Reece, PJ & Gooding, JJ 2013, 'Photolithographic Strategy for Patterning Preformed, Chemically Modified, Porous Silicon Photonic Crystal Using Click Chemistry', ACS Applied Materials & Interfaces, vol. 5, no. 14, pp. 6514-6521.
View/Download from: Publisher's site

Zhu, Y, Qin, L, Yu, JX, Ke, Y & Lin, X 2013, 'High efficiency and quality: large graphs matching.', VLDB J., vol. 22, no. 3, pp. 345-368.
View/Download from: Publisher's site
View description>>

Graph matching plays an essential role in many real applications. In this paper, we study how to match two large graphs by maximizing the number of matched edges, which is known as maximum common subgraph matching and is NP-hard. To find exact matching, it cannot a graph with more than 30 nodes. To find an approximate matching, the quality can be very poor. We propose a novel two-step approach that can efficiently match two large graphs over thousands of nodes with high matching quality. In the first step, we propose an anchor-selection/expansion approach to compute a good initial matching. In the second step, we propose a new approach to refine the initial matching. We give the optimality of our refinement and discuss how to randomly refine the matching with different combinations. We further show how to extend our solution to handle labeled graphs. We conducted extensive testing using real and synthetic datasets and report our findings in this paper. © 2012 Springer-Verlag.

Zong, Y, Jin, P, Xu, D & Pan, R 2013, 'A Clustering Algorithm based on Local Accumulative Knowledge', Journal of Computers, vol. 8, no. 2, pp. 365-371.
View/Download from: Publisher's site
View description>>

Clustering as an important unsupervised learning technique is widely used to discover the inherent structure of a given data set. For clustering is depended on applications, researchers use different models to defined clustering problems. Heuristic clustering algorithm is an efficient way to deal with clustering problem defined by combining optimization model, but initialization sensitivity is an inevitable problem. In the past decades, a lot of methods have been proposed to deal with such problem. In this paper, on the contrary, we take the advantage of the initialization sensitivity to design a new clustering algorithm. We, firstly, run K-means, a widely used heuristic clustering algorithm, on data set for multiple times to generate several clustering results; secondly, propose a structure named Local Accumulative Knowledge (LAKE) to capture the common information of clustering results; thirdly, execute the Single-linkage algorithm on LAKE to generate a rough clustering result; eventually, assign the rest data objects to the corresponding clusters. Experimental results on synthetic and real world data sets demonstrate the superiority of the proposed approach in terms of clustering quality measures. © 2013 ACADEMY PUBLISHER.

Zong, Y, Jin, P, Xu, G & Guo, Y 2013, 'Local centrality information passing clustering algorithm for tags', Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University, vol. 34, no. 4, pp. 499-504.
View/Download from: Publisher's site
View description>>

In recent years, most of the proposed tag clustering algorithms directly deal with the tag data by using traditional clustering algorithms, such as: K-means or Single-linkage devices. Nevertheless, the inherent drawbacks of using these traditional clustering algorithms have badly influenced the quality of tag clustering. In this paper, a clustering algorithm named local centrality information passing clustering (LCIPC) was proposed in an attempt to find out how to achieve high quality tag clustering results. First, we utilized the LCIPC, to construct a KNN directed neighbor graph G based on the similarities of the tag's; secondly, the local centrality value of every tag was calculated by using a KNN kernel density estimator; and thirdly, the local centrality value was passed onto the graph G by running a random walk method to generate global centrality rank listings. Eventually, tag clustering results were created based on global centrality ranking list by using an in-depth search first algorithm. The experimental results conducted utilizing three real world datasets indicate that the proposed LCIPC method has the ability of finding high quality tag clustering results.

Zulkifli, NWM, Kalam, MA, Masjuki, HH & Yunus, R 2013, 'Experimental Analysis of Tribological Properties of Biolubricant with Nanoparticle Additive', Procedia Engineering, vol. 68, pp. 152-157.
View/Download from: Publisher's site

Zulkifli, NWM, Kalam, MA, Masjuki, HH, Shahabuddin, M & Yunus, R 2013, 'Wear prevention characteristics of a palm oil-based TMP (trimethylolpropane) ester as an engine lubricant', Energy, vol. 54, pp. 167-173.
View/Download from: Publisher's site

Zuthi, MFR, Guo, WS, Ngo, HH, Nghiem, LD & Hai, FI 2013, 'Enhanced biological phosphorus removal and its modeling for the activated sludge and membrane bioreactor processes', BIORESOURCE TECHNOLOGY, vol. 139, no. 1, pp. 363-374.
View/Download from: Publisher's site
View description>>

A modified activated sludge process (ASP) for enhanced biological phosphorus removal (EBPR) needs to sustain stable performance for wastewater treatment to avoid eutrophication in the aquatic environment. Unfortunately, the overall efficiency of the EBPR in ASPs and membrane bioreactors (MBRs) is frequently hindered by different operational/system constraints. Moreover, although phosphorus removal data from several wastewater treatment systems are available, a comprehensive mathematical model of the process is still lacking. This paper presents a critical review that highlights the core issues of the biological phosphorus removal in ASPs and MBRs while discussing the inhibitory process requirements for other nutrients' removal. This mini review also successfully provided an assessment of the available models for predicting phosphorus removal in both ASP and MBR systems. The advantages and limitations of the existing models were discussed together with the inclusion of few guidelines for their improvement. © 2013 Elsevier Ltd.

Zuthi, MFR, Ngo, HH, Guo, WS, Li, JX, Xia, SQ & Zhang, ZQ 2013, 'New proposed conceptual mathematical models for biomass viability and membrane fouling of membrane bioreactor', BIORESOURCE TECHNOLOGY, vol. 142, no. 1, pp. 737-740.
View/Download from: Publisher's site
View description>>

The production and accumulation of soluble microbial products (SMP), extracellular polymeric substances (EPS) and colloidal inert compounds within a membrane bioreactor (MBR) may greatly affect the biomass viability and subsequently the permeability of the membrane. This paper aims at presenting new mathematical models of biomass viability and membrane fouling that has been conceptually developed through establishing links between these biomass parameters and operating parameters of the MBR. The proposed models can be used to predict the biomass viability and membrane fouling at any state of operation of MBR. Meanwhile, easily measurable parameters of the proposed model can also serve to estimate SMP/EPS concentration in the supernatant of MBR without the tedious and expensive measurement.

Zuthi, MFR, Ngo, HH, Guo, WS, Zhang, J & Liang, S 2013, 'A review towards finding a simplified approach for modelling the kinetics of the soluble microbial products (SMP) in an integrated mathematical model of membrane bioreactor (MBR)', INTERNATIONAL BIODETERIORATION & BIODEGRADATION, vol. 85, no. 1, pp. 466-473.
View/Download from: Publisher's site
View description>>

Soluble microbial products (SMPs) tend to accumulate in the membrane bioreactor (MBR) systems as a consequence of high membrane rejection and apparently low biodegradability within the wastewater treatment system. The extension of the activated sludge models (ASMs) with SMPs, therefore, has received crucial importance in recent days, particularly considering their potential use as indicators of the membrane fouling propensity. This paper presents a critical review of the formation and degradation kinetics of SMP subdivisions that have so far been used for the mathematical modelling of MBR. The paper identified a simplified approach to incorporate the kinetics of the SMP formation and degradation in the general mathematical models of MBR. It suggested that the inclusion of only four additional linear differential equations in the ASM1-SMP integrated mathematical model could simulate well the effluent quality and membrane fouling prediction. The model would also serve as a useful tool in optimizing operation conditions for better treatability and fouling control.