The paper presents original research regarding regulatory challenges.
Burnham, DR, Reece, PJ & McGloin, D 2010, 'Parameter exploration of optically trapped liquid aerosols', Physical Review E, vol. 82, no. 5.
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Bybee, K 2010, 'Evaluation of LNG, CNG, GTL, and NGHs for Monetization of Stranded Gas', Journal of Petroleum Technology, vol. 62, no. 04, pp. 61-62.
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This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper IPTC 14083, ’Evaluation of LNG, CNG, GTL and NGH for Monetization of Stranded Associated Gas With the Incentive of Carbon Credit,’ by R. Khalilpour, SPE, and I.A. Karimi, Department of Chemical and Biomolecular Engineering, National University of Singapore, originally prepared for the 2009 International Petroleum Technology Conference, Doha, Qatar, 7-9 December.
Associated gas is estimated to account for 17% of global gas reserves. However, the majority of associated-gas resources are small or located offshore, which has made their use uneconomical. Operators thus have preferred either flaring or reinjecting the gas rather than use. There are a number of gas technologies that have the potential to make the development of stranded gas resources economically viable. The full-length paper details a study that investigated each of these processes on the basis of different variables.
Introduction
Associated gas is natural gas found in association with crude oil. According to the latest data from the Energy Information Administration, the total world gas reserves are approximately 6,200 Tcf. Some studies have estimated that global associated-gas reserves without commercial value exceed 1,000 Tcf.
The National Geographic Data Center through collaboration with the World Bank’s Global Gas Flaring Reduction (GGFR) partnership is carrying out a project to develop a method to estimate global gas-flaring volumes on the basis of satellite-sensor observations. The center has reported the global volume at approximately 4.9 to 6.1 Tcf/yr within the period of 1994–2008, with a maximum amount of 6.1 Tcf in year 2005 and minimum of 4.9 Tcf in 2008. This amount of gas accounts for approximately 5 to 6% of total world natural-gas consumption.
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Cagno, E, Castelli Dezza, F, Delfanti, M, Merlo, M & Trianni, A 2010, 'Virtual Power System: Novel approach for Distributed Generation and Consumption Coordination', Renewable Energy and Power Quality Journal, vol. 1, no. 08, pp. 1158-1163.
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Worldwide the introduction of dispersed generators (DG) in the distribution network is assuming a significant importance. There is an increasing relevance of the energy process efficiency improvement; as for electric power systems, the most interesting perspective concerns the capability of the system to increase the exploitation of the renewable resources. The integration of DGs in the electric distribution network requires a revision of this infrastructure, so far designed and developed assuming that power flows in one direction: from the high voltage transmission network to the medium voltage distribution, to reach final customers on the low voltage network. The attention to an efficient operation of distribution networks is increasing all over the world; this interest is becoming higher and higher also in Italy, where the high energy prices push in the direction of fostering efficiency as much as possible. This work describes a study developed in the Alpenergy project framework: an International Cooperation Program aimed at introducing an efficient operational model for the distributed production and consumption. In particular it is proposed a new model for the integration and the management of the DG in the distribution network. The new model (defined VPS: Virtual Power System) is based on a communication channel between the active users (generators), the loads and, eventually, the Distribution System Operators (DSOs).
Cagno, E, Trucco, P, Trianni, A & Sala, G 2010, 'Quick-E-scan: A methodology for the energy scan of SMEs', Energy, vol. 35, no. 5, pp. 1916-1926.
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Cai, Y, Guo, YJ & Weily, AR 2010, 'A Frequency-Reconfigurable Quasi-Yagi Dipole Antenna', IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 883-886.
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A new frequency-reconfigurable quasi-Yagi dipole antenna is presented. It consists of a driven dipole element with two varactors in two arms, a director with an additional varactor, a truncated ground plane reflector, a microstrip-to-coplanar-stripline (CPS) transition, and a novel biasing circuit. The effective electrical length of the director element and that of the driven arms are adjusted together by changing the biasing voltages. A 35% continuously frequency-tuning bandwidth, from 1.80 to 2.45 GHz, is achieved. This covers a number of wireless communication systems, including 3G UMTS, US WCS, and WLAN. The length-adjustable director allows the endfire pattern with relatively high gain to be maintained over the entire tuning bandwidth. Measured results show that the gain varies from 5.6 to 7.6 dBi and the front-to-back ratio is better than 10 dB. The H-plane cross polarization is below -15 dB, and that in the E-plane is below -20 dB. © 2006 IEEE.
Cai, Y, Guo, YJ, Qin, PY, Weily, AR & IEEE 2010, 'Frequency Reconfigurable Quasi-Yagi Dipole Antenna', 2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, vol. 58, pp. 2742-2747.
Cao, L 2010, 'Domain-Driven Data Mining: Challenges and Prospects', IEEE Transactions on Knowledge and Data Engineering, vol. 22, no. 6, pp. 755-769.
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Traditional data mining research mainly focus]es on developing, demonstrating, and pushing the use of specific algorithms and models. The process of data mining stops at pattern identification. Consequently, a widely seen fact is that 1) many algorithms have been designed of which very few are repeatable and executable in the real world, 2) often many patterns are mined but a major proportion of them are either commonsense or of no particular interest to business, and 3) end users generally cannot easily understand and take them over for business use. In summary, we see that the findings are not actionable, and lack soft power in solving real-world complex problems. Thorough efforts are essential for promoting the actionability of knowledge discovery in real-world smart decision making. To this end, domain-driven data mining (D3M) has been proposed to tackle the above issues, and promote the paradigm shift from ÃÂdata-centered knowledge discoveryÃÂ to ÃÂdomain-driven, actionable knowledge delivery.ÃÂ In D3M, ubiquitous intelligence is incorporated into the mining process and models, and a corresponding problem-solving system is formed as the space for knowledge discovery and delivery. Based on our related work, this paper presents an overview of driving forces, theoretical frameworks, architectures, techniques, case studies, and open issues of D3M. We understand D3M discloses many critical issues with no thorough and mature solutions available for now, which indicates the challenges and prospects for this new topic.
Castel, A, Vidal, T & François, R 2010, 'Bond and cracking properties of self-consolidating concrete', Construction and Building Materials, vol. 24, no. 7, pp. 1222-1231.
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Catchpoole, DR, Kennedy, P, Skillicorn, DB & Simoff, S 2010, 'The Curse of Dimensionality: A Blessing to Personalized Medicine', Journal of Clinical Oncology, vol. 28, no. 34, pp. e723-e724.
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Cetindamar, D 2010, 'Innovation, Science and Institutional Change: A Research Handbook', Regional Studies, vol. 44, no. 9, pp. 1305-1306.
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CETINDAMAR, D & GUNSEL, A 2010, 'ISTANBUL: A CANDIDATE CITY FOR THE GLOBAL INNOVATION LEAGUE', Journal of Global Strategic Management, vol. 1, no. 4, pp. 74-74.
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Chaczko, Z, Aboura, K & Agbinya, J 2010, 'Software Engineering for Mapping Radio Frequency Pollution', International Journal of Electronics and Telecommunications, vol. 56, no. 2, pp. 129-136.
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Software Engineering for Mapping Radio Frequency PollutionElectromagnetic fields radiation has raised concerns within several segments of the population in the past three decades. Many studies proved inconclusive, in part due to the scarcity of data. We propose the idea of a geographical model based radiation pollution database. We discuss networked sensing technology for detection and monitoring of electromagnetic fields. We elaborate on software engineering issues for the visualization in real time of electromagnetic field mappings and the dissemination of information through various means and levels of access. We propose the database be complimented by a data algorithmic software solution for the extraction of patterns.
Chaivongvilan, S & Sharma, D 2010, 'A comprehensive framework for analysing long-term energy scenarios for Thailand', International Energy Journal, vol. 11, no. 4, pp. 193-202.
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Energy is one of the most critical ingredients for economic development and prosperity of any nation. It is more so for a developing country like Thailand where energy is critically needed in order to realize the economic growth aspirations of the country. The task of providing adequate and reliable energy has however emerged as a challenging policy issue for Thailand, particularly when viewed in the context of the evolving socio-economic dynamics of the country, typified by an energy sector that is in the throes of reform, resource scarcity, energy dependence, industrial development and high economic growth. In order, therefore, to satisfy the expected energy requirements and sustain economic prosperity, effective national energy policies would be needed. A review of the existing energy policies suggests that these policies are somewhat narrow, fragmented and insular. They therefore are unlikely to be able to satisfactorily meet the energy needs of Thailand. This deficiency could however - this paper contends - be overcome by taking a fresher perspective on the nature of policy challenges and strategies to redress them. Such a perspective, this paper further argues, could be assisted by adopting a comprehensive framework that could accommodate the specificities of Thailand while integrating the technical, economic, environmental and political dimensions of the energy sector in a cohesive and consistent manner. This paper is an early attempt at developing such a framework.
Chanan, A, Saravanamuth, V, Kandasamy, J & Shon, HK 2010, 'Chemical-assisted physico-biological water mining system', PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT, vol. 163, no. 9, pp. 469-474.
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Water mining is the process of extracting valuable water from a sewerage network by treating raw sewage to high standards. A range of commercially viable water mining treatment technologies are now available to treat sewage to specified water quality targets. Most of these technologies have minimal plant footprint requirements, making them suitable for decentralised operations. This paper discusses a hybrid water mining system that includes chemically assisted fine solids separation followed by a biological treatment process. Results from the first proof testing of this water mining system in Sydney, Australia are presented. The results confirm the suitability of the hybrid system for producing high-quality water for non-potable reuse.
Chanan, A, Vigneswaran, S & Kandasamy, J 2010, 'Valuing stormwater, rainwater and wastewater in the soft path for water management: Australian case studies', Water Science and Technology, vol. 62, no. 12, pp. 2854-2861.
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A Water Sensitive City is now commonly acknowledged best practice for designing the cities of the future. In Australia, the National Water Initiative has allocated high priority towards offering insight into successful water sensitive urban development projects, to facilitate capacity building within the industry. This paper shares innovative water sensitive projects implemented at Kogarah City Council, in Sydney. Four key projects are discussed, demonstrating how stormwater, rainwater and wastewater can be incorporated into decentralised water systems to offer sustainable water management of the future. The case studies included in the paper highlight Kogarah's journey towards the Soft Path for Water Management.
Chanan, AP, Kandasamy, JK, Vigneswaran, S, Spyrakis, G, Ghetti, I & idris, E 2010, 'Applied Rainwater Harvesting Education: An Australian Case Study', Journal of Environmental Science and Engineering, vol. 4, no. 3, pp. 32-35.
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Rainwater tanks have been an integral part of the Australian landscape given the vital role these tanks have played over the years in rural Australia. In the past Local government and Water Authorities actively discouraged the use of rainwater tanks and informing citizens that they were illegal and dangerous. Kogarah Council within the Sydney metropolitan area is a proactive Council, and became the first council in Sydney to adopt Total Water Cycle Management (TWCM) principles into its Sustainability Management Plan, integrating these principles into on-ground projects at a catchment level in a planned and strategic approach. Among it priority projects was the Rainwater Tanks in Schools. This paper outlines how this project assisted all 22 schools in the Kogarah LGA (The Local Government Association) to increase the efficiency of water use and install rainwater tanks to reduce potable water use in toilet flushing and irrigating school gardens. The rainwater harvesting reduced the amount of drinking water used for toilet flushing and/or irrigation. The rainwater tanks also act as a visual reminder to conserve water for the students. The project has equipped the next generation with the necessary tools to make informed decisions and undertake actions that will move towards achieving sustainability.
Chang, C-W, Ko, L-W, Lin, F-C, Su, T-P, Jung, T-P, Lin, C-T & Chiou, J-C 2010, 'Drowsiness Monitoring with EEG-Based MEMS Biosensing Technologies', GeroPsych, vol. 23, no. 2, pp. 107-113.
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Electroencephalography (EEG) has been widely adopted to monitor changes in cognitive states, particularly stages of sleep, as EEG recordings contain a wealth of information reflecting changes in alertness and sleepiness. In this study, silicon dry electrodes based on Micro-Electro-Mechanical Systems (MEMS) were developed to bring high-quality EEG acquisition to operational workplaces. They have superior conductivity performance, large signal intensity, and are smaller in size than conventional (wet) electrodes. An EEG-based drowsiness estimation system consisting of a dry-electrode array, power spectrum estimation, principal component analysis (PCA)-based EEG signal analysis, and multivariate linear regression was developed to estimate drivers’ drowsiness levels in a virtual-reality-based dynamic driving simulator. The proposed system can help elders who are often affected by periods of tiredness and fatigue.
Chang, C-Y, Chang, J-S, Chen, C-M, Chiemchaisri, C & Vigneswaran, S 2010, 'An innovative attached-growth biological system for purification of pond water', Bioresource Technology, vol. 101, no. 5, pp. 1506-1510.
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This study applied the non-woven material from used diaper as the carrier for bio-film process to purify the recycled water from a landscape pond at the Tainan City Municipal Culture Center (TCMCC), Taiwan. An on-site system was installed and the experiment was accomplished through three stages in 192 days with different time periods of 70 days, 63 days, and 59 days, respectively. The results showed that the non-woven media is functional for SS removal. The average SS removal of stages 1, 2, and 3 were 91%, 96%, and 95%, respectively. The highest SCOD removal efficiency of 90% occurred at stage 3. A significant color improvement of the pond water was achieved through this non-woven bio-carrier treatment system. Whole system can be without any maintenance for 139 days. The result indicated that the non-woven medium system was with a great potential in treating and recycling the pond water with stable operation and satisfactory removal performance.
Chang, L, Yu, JX & Qin, L 2010, 'Context-Sensitive Document Ranking.', J. Comput. Sci. Technol., vol. 25, no. 3, pp. 444-457.
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Ranking is a main research issue in IR-styled keyword search over a set of documents. In this paper, we study a new keyword search problem, called context-sensitive document ranking, which is to rank documents with an additional context that provides additional information about the application domain where the documents are to be searched and ranked. The work is motivated by the fact that additional information associated with the documents can possibly assist users to find more relevant documents when they are unable to find the needed documents from the documents alone. In this paper, a context is a multi-attribute graph, which can represent any information maintained in a relational database, where multi-attribute nodes represent tuples, and edges represent primary key and foreign key references among nodes. The context-sensitive ranking is related to several research issues, how to score documents, how to evaluate the additional information obtained in the context that may contribute to the document ranking, how to rank the documents by combining the scores/costs from the documents and the context. More importantly, the relationships between documents and the information stored in a relational database may be uncertain, because they are from different data sources and the relationships are determined systematically using similarity match which causes uncertainty. In this paper, we concentrate ourselves on these research issues, and provide our solution on how to rank the documents in a context where there exist uncertainty between the documents and the context. We confirm the effectiveness of our approaches by conducting extensive experimental studies using real datasets. We present our findings in this paper.
Chen, J & Ying, M 2010, 'ANCILLA-ASSISTED DISCRIMINATION OF QUANTUM GATES', QUANTUM INFORMATION & COMPUTATION, vol. 10, no. 1-2, pp. 160-177.
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The intrinsic idea of superdense coding is to find as many gates as possible such that they can be perfectly discriminated. In this paper, we consider a basic scheme of discrimination of quantum gates, called ancilla-assisted discrimination, in which a s
Chen, J, Chen, X, Duan, R, Ji, Z & Zeng, B 2010, 'No-go Theorem for One-way Quantum Computing on Naturally Occurring Two-level Systems', Phys. Rev. A, vol. 83, p. 050301.
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One-way quantum computing achieves the full power of quantum computation by
performing single particle measurements on some many-body entangled state,
known as the resource state. As single particle measurements are relatively
easy to implement, the preparation of the resource state becomes a crucial
task. An appealing approach is simply to cool a strongly correlated quantum
many-body system to its ground state. In addition to requiring the ground state
of the system to be universal for one-way quantum computing, we also want the
Hamiltonian to have non-degenerate ground state protected by a fixed energy
gap, to involve only two-body interactions, and to be frustration-free so that
measurements in the course of the computation leave the remaining particles in
the ground space. Recently, significant efforts have been made to the search of
resource states that appear naturally as ground states in spin lattice systems.
The approach is proved to be successful in spin-5/2 and spin-3/2 systems. Yet,
it remains an open question whether there could be such a natural resource
state in a spin-1/2, i.e., qubit system. Here, we give a negative answer to
this question by proving that it is impossible for a genuinely entangled qubit
states to be a non-degenerate ground state of any two-body frustration-free
Hamiltonian. What is more, we prove that every spin-1/2 frustration-free
Hamiltonian with two-body interaction always has a ground state that is a
product of single- or two-qubit states, a stronger result that is interesting
independent of the context of one-way quantum computing.
Chen, L, Chitambar, E, Duan, R, Ji, Z & Winter, A 2010, 'Tensor Rank and Stochastic Entanglement Catalysis for Multipartite Pure States', Phys. Rev. Lett., vol. 105, no. 20, p. 200501.
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The tensor rank (also known as generalized Schmidt rank) of multipartite pure
states plays an important role in the study of entanglement classifications and
transformations. We employ powerful tools from the theory of homogeneous
polynomials to investigate the tensor rank of symmetric states such as the
tripartite state $\ket{W_3}=\tfrac{1}{\sqrt{3}}(\ket{100}+\ket{010}+\ket{001})$
and its $N$-partite generalization $\ket{W_N}$. Previous tensor rank estimates
are dramatically improved and we show that (i) three copies of $\ket{W_3}$ has
rank either 15 or 16, (ii) two copies of $\ket{W_N}$ has rank $3N-2$, and (iii)
$n$ copies of $\ket{W_N}$ has rank O(N). A remarkable consequence of these
results is that certain multipartite transformations, impossible even
probabilistically, can become possible when performed in multiple copy bunches
or when assisted by some catalyzing state. This effect is impossible for
bipartite pure states.
Chen, L, Chitambar, E, Duan, R, Ji, Z & Winter, A 2010, 'Tensor Rank and Stochastic Entanglement Catalysis for Multipartite Pure States', Physical Review Letters, vol. 105, no. 20, pp. 1-4.
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The tensor rank (also known as generalized Schmidt rank) of multipartite pure states plays an important role in the study of entanglement classifications and transformations. We employ powerful tools from the theory of homogeneous polynomials to investig
Chen, L, Chitambar, E, Duan, R, Ji, Z & Winter, A 2010, 'Tensor rank and stochastic entanglement catalysis for multipartite pure states', Physical Review Letters, vol. 105, no. 20, pp. 1-4.
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The tensor rank (also known as generalized Schmidt rank) of multipartite pure states plays an important role in the study of entanglement classifications and transformations. We employ powerful tools from the theory of homogeneous polynomials to investigate the tensor rank of symmetric states such as the tripartite state |W3=1√3(|100+|010+|001) and its N-partite generalization |WN. Previous tensor rank estimates are dramatically improved and we show that (i) three copies of |W3 have a rank of either 15 or 16, (ii) two copies of |WN have a rank of 3N-2, and (iii) n copies of |WN have a rank of O(N). A remarkable consequence of these results is that certain multipartite transformations, impossible even probabilistically, can become possible when performed in multiple-copy bunches or when assisted by some catalyzing state. This effect is impossible for bipartite pure states. © 2010 The American Physical Society.
Chen, L, Warkiani, ME, Liu, H-B & Gong, H-Q 2010, 'Polymeric micro-filter manufactured by a dissolving mold technique', Journal of Micromechanics and Microengineering, vol. 20, no. 7, pp. 075005-075005.
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Chen, P & Li, J 2010, 'Prediction of protein long-range contacts using an ensemble of genetic algorithm classifiers with sequence profile centers', BMC Structural Biology, vol. 10, no. Suppl 1, pp. S2-S2.
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Background: Prediction of long-range inter-residue contacts is an important topic in bioinformatics research. It is helpful for determining protein structures, understanding protein foldings, and therefore advancing the annotation of protein functions. R
Chen, P & Li, J 2010, 'Sequence-based identification of interface residues by an integrative profile combining hydrophobic and evolutionary information', BMC Bioinformatics, vol. 11, no. 1, pp. 0-0.
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Background: Protein-protein interactions play essential roles in protein function determination and drug design. Numerous methods have been proposed to recognize their interaction sites, however, only a small proportion of protein complexes have been suc
Chen, P, Liu, C, Burge, L, Li, J, Mohammad, M, Southerland, W, Gloster, C & Wang, B 2010, 'DomSVR: domain boundary prediction with support vector regression from sequence information alone', Amino Acids, vol. 39, no. 3, pp. 713-726.
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Protein domains are structural and fundamental functional units of proteins. The information of protein domain boundaries is helpful in understanding the evolution, structures and functions of proteins, and also plays an important role in protein classif
Chen, W, Pu, H & Qiu, X 2010, 'A compound secondary source for active noise radiation control', Applied Acoustics, vol. 71, no. 2, pp. 101-106.
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Chen, X, Duan, R, Ji, Z & Zeng, B 2010, 'Quantum state reduction for universal measurement based computation', Phys. Rev. Lett. 105(2):020502 (2010), vol. 105, no. 2, pp. 1-4.
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Measurement based quantum computation (MBQC), which requires only single
particle measurements on a universal resource state to achieve the full power
of quantum computing, has been recognized as one of the most promising models
for the physical realization of quantum computers. Despite considerable
progress in the last decade, it remains a great challenge to search for new
universal resource states with naturally occurring Hamiltonians, and to better
understand the entanglement structure of these kinds of states. Here we show
that most of the resource states currently known can be reduced to the cluster
state, the first known universal resource state, via adaptive local
measurements at a constant cost. This new quantum state reduction scheme
provides simpler proofs of universality of resource states and opens up plenty
of space to the search of new resource states, including an example based on
the one-parameter deformation of the AKLT state studied in [Commun. Math. Phys.
144, 443 (1992)] by M. Fannes et al. about twenty years ago.
Chen, X, Lingam, HK, Huang, Z, Yisgedu, T, Zhao, J-C & Shore, SG 2010, 'Thermal Decomposition Behavior of Hydrated Magnesium Dodecahydrododecaborates', The Journal of Physical Chemistry Letters, vol. 1, no. 1, pp. 201-204.
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Chen, Y, Zhang, J & Jayalath, A 2010, 'Estimation and compensation of clipping noise in OFDMA systems', IEEE Transactions on Wireless Communications, vol. 9, no. 2, pp. 523-527.
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Chen, Y-C, Duann, J-R, Chuang, S-W, Lin, C-L, Ko, L-W, Jung, T-P & Lin, C-T 2010, 'Spatial and temporal EEG dynamics of motion sickness', NeuroImage, vol. 49, no. 3, pp. 2862-2870.
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Chin-Teng Lin, Kuan-Cheng Chang, Chun-Ling Lin, Chia-Cheng Chiang, Shao-Wei Lu, Shih-Sheng Chang, Bor-Shyh Lin, Hsin-Yueh Liang, Ray-Jade Chen, Yuan-Teh Lee & Li-Wei Ko 2010, 'An Intelligent Telecardiology System Using a Wearable and Wireless ECG to Detect Atrial Fibrillation', IEEE Transactions on Information Technology in Biomedicine, vol. 14, no. 3, pp. 726-733.
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Chinu, K, Johir, AH, Vigneswaran, S, Shon, HK & Kandasamy, J 2010, 'Assessment of pretreatment to microfiltration for desalination in terms of fouling index and molecular weight distribution', DESALINATION, vol. 250, no. 2, pp. 644-647.
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In this study, different processes such as flocculation with ferric chloride (FeCl3) and deep bed filtration (sand filtration and dual media filtration) as a pre-treatment to microfiltration (MF) were used for seawater desalination. The performance of these pre-treatments was determined in terms of silt density index (SDI) and modified fouling index (MFI) and flux decline in MF. Flux decline of MF with seawater was 45% without any pre-treatment, 42% after pre-treatment of FeCl3 flocculation, 24% after pre-treatment of sand filtration with in-line coagulation and 22% after pre-treatment of dual media filtration (sand and anthracite), respectively. MFI and SDI also indicated that deep bed filtration with in-line flocculation was better pretreatment than flocculation alone. Detailed molecular weight distribution (MWD) of seawater organic matter was examined after different pretreatments. MWD of the initial seawater mainly ranged from 1510 Da to 130 Da. Deep bed filtration with in-line flocculation removed relatively large molecular weight of organic matter (1510â1180 Da), while the small molecular weights (less than 530 Da) were not removed.
Chinu, K, Vigneswaran, S, Erdei, L, Shon, HK, Kandasamy, J & Ngo, HH 2010, 'Comparison of fouling indices in assessing pre-treatment for seawater reverse osmosis', DESALINATION AND WATER TREATMENT, vol. 18, no. 1-3, pp. 187-191.
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In this study, different processes such as flocculation with ferric chloride (FeCl3) and deep bed filtration (sand filtration and dual media filtration) as a pre-treatment were used for seawater desalination. The performance of these pre-treatments was determined in terms of silt density index (SDI) and modified fouling index by using microfilter (MF-MFI), ultrafilter (UF-MFI), and nanofilter (NF-MFI) membrane. MFI and SDI indicated that deep bed filtration with in-line flocculation was better pre-treatment than flocculation alone as colloidal particles are removed after this pretreatment. UF-MFI and NF-MFI indicated that these pretreatment cannot remove dissolved organic matter as the fouling reduction was smaller. Detailed molecular weight distribution (MWD) of seawater organic matter was examined after different pretreatments. MWD of the initial seawater mainly ranged from 1510 Da to 130 Da. Deep bed filtration with in-line flocculation removed relatively large molecular weight of organic matter (1510â1180 Da), while the small molecular weights (less than 530 Da) were not removed.
Chitambar, E, Duan, R & Shi, Y 2010, 'Multipartite-to-bipartite entanglement transformations and polynomial identity testing', Physical Review A, vol. 81, no. 5, pp. 1-4.
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We consider the problem of deciding if some multiparty entangled pure state can be converted, with a nonzero success probability, into a given bipartite pure state shared between two specified parties through local quantum operations and classical commun
Chongsuvivatwong, V, Bachtiar, H, Chowdhury, ME, Fernando, S, Suwanrath, C, Kor-anantakul, O, Tuan, LA, Lim, A, Lumbiganon, P, Manandhar, B, Muchtar, M, Nahar, L, Hieu, NT, Fang, PX, Prasertcharoensuk, W, Radnaabarzar, E, Sibuea, D, Than, KK, Tharnpaisan, P, Thach, TS & Rowe, P 2010, 'Maternal and fetal mortality and complications associated with cesarean section deliveries in teaching hospitals in Asia', Journal of Obstetrics and Gynaecology Research, vol. 36, no. 1, pp. 45-51.
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Coleman, PJ & Nghiem, LD 2010, 'Solar-Powered Compaction Garbage Bins in Public Areas: A Preliminary Economic and Environmental Evaluation', Sustainability, vol. 2, no. 2, pp. 524-532.
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An excel-based model was developed to evaluate economic and environmental benefits of the solar-powered compaction garbage bins in public areas in Australia. Input data were collected from Brisbane and Wollongong City councils, and Sydney Olympic Park. The results demonstrate that solar-powered compaction garbage bins would provide environmental benefits in all scenarios. However, results of the economic analysis of the three studied areas varied significantly. The unique situation of Sydney Olympic Park made implementation in that facility particularly appealing. A lower monthly rental cost is needed for the implementation of this novel waste management practice.
Cowern, NEB, Bennett, NS, Ahn, C, Yoon, JC, Hamm, S, Lerch, W, Kheyrandish, H, Cristiano, F & Pakfar, A 2010, 'Overlayer stress effects on defect formation in Si and Ge', Thin Solid Films, vol. 518, no. 9, pp. 2442-2447.
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Csonka, PJ & Waldron, KJ 2010, 'Characterization of an Electric-Pneumatic Hybrid Prismatic Actuator', Journal of Mechanisms and Robotics, vol. 2, no. 2.
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Many high performance actuators have been developed in recent years. However, these actuators are generally designed for precise, relatively slow movements, or imprecise dynamic motion, but incapable of generating quasistatic trajectories. This dichotomy arises in part due to thrusting actuation technology that often trades off impulse for precision. A characterization of a bidirectional hybrid actuator developed for use in legged robots is described here. This actuator is capable of precise noncompliant positioning, and storage and rapid release of energy, which makes it equally suitable for static and dynamic positioning applications. Characterizations shown here allow tuning the actuator in future versions to reduce losses and increase efficiency.
Csorba, T, Lózsa, R, Hutvágner, G & Burgyán, J 2010, 'Polerovirus protein P0 prevents the assembly of small RNA-containing RISC complexes and leads to degradation of ARGONAUTE1', The Plant Journal, vol. 62, no. 3, pp. 463-472.
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P>RNA silencing plays an important role in plants in defence against viruses. To overcome this defence, plant viruses encode suppressors of RNA silencing. The most common mode of silencing suppression is sequestration of double-stranded RNAs involved in
Da Xu, RY & Kemp, M 2010, 'Fitting Multiple Connected Ellipses to an Image Silhouette Hierarchically', IEEE Transactions on Image Processing, vol. 19, no. 7, pp. 1673-1682.
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In this paper, we seek to fit a model, specified in terms of connected ellipses, to an image silhouette. Some algorithms that have attempted this problem are sensitive to initial guesses and also may converge to a wrong solution when they attempt to mini
Dabade, UA, Sonawane, HA & Joshi, SS 2010, 'CUTTING FORCES AND SURFACE ROUGHNESS IN MACHINING Al/SiCp COMPOSITES OF VARYING COMPOSITION', Machining Science and Technology, vol. 14, no. 2, pp. 258-279.
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Dachermann, U, Li, J & Samali, B 2010, '1A12 Boundary Damage Identification of a Two-Storey Framed Structure utilizing Frequency Response Functions and Artificial Neural Networks', The Proceedings of the Symposium on the Motion and Vibration Control, vol. 2010, no. 0.
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Dackermann, U, Li, J & Samali, B 2010, 'Dynamic-Based Damage Identification Using Neural Network Ensembles and Damage Index Method', ADVANCES IN STRUCTURAL ENGINEERING, vol. 13, no. 6, pp. 1001-1016.
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This paper presents a vibration-based damage identification method that utilises a âdamage fingerprintâ of a structure in combination with Principal Component Analysis (PCA) and neural network techniques to identify defects. The Damage Index (DI) method is used to extract unique damage patterns from a damaged beam structure with the undamaged structure as baseline. PCA is applied to reduce the effect of measurement noise and optimise neural network training. PCA-compressed DI values are, then, used as inputs for a hierarchy of neural network ensembles to estimate locations and severities of various damage cases. The developed method is verified by a laboratory structure and numerical simulations in which measurement noise is taken into account with different levels of white Gaussian noise added. The damage identification results obtained from the neural network ensembles show that the presented method is capable of overcoming problems inherent in the conventional DI method. Issues associated with field testing conditions are successfully dealt with for numerical and the experimental simulations. Moreover, it is shown that the neural network ensemble produces results that are more accurate than any of the outcomes of the individual neural networks.
Dangat, KD, Mehendale, SS, Yadav, HR, Kilari, AS, Kulkarni, AV, Taralekar, VS & Joshi, SR 2010, 'Long-Chain Polyunsaturated Fatty Acid Composition of Breast Milk in Pre-Eclamptic Mothers', Neonatology, vol. 97, no. 3, pp. 190-194.
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<i>Background:</i> Maternal fatty acid nutrition during pregnancy and lactation determines the transfer of long-chain polyunsaturated fatty acids via the placenta and through human milk. Neural maturation of breast-fed infants is known to be linked to breast-milk long-chain polyunsaturated fatty acid concentrations. In spite of this, the fatty acid composition of breast milk in pre-eclamptic mothers is poorly understood. <i>Objectives:</i> To compare the fatty acid composition of breast milk of pre-eclamptic (n = 45) with normotensive (n = 85) mothers and examine the association of breast-milk fatty acids with plasma fatty acids. <i>Methods:</i> Milk and plasma fatty acid methyl esters were prepared and analyzed by the modified method of Manku and colleagues using gas chromatography. <i>Results:</i> Docosahexaenoic acid (DHA) concentrations were significantly increased (p < 0.01) in breast milk in spite of lower maternal plasma DHA concentrations (p < 0.05) in pre-eclamptic women. However, there was no difference in arachidonic acid levels between groups in spite of reduced maternal plasma arachidonic acid levels. <i>Conclusions:</i> The data suggest that in pre-eclampsia, the relation between plasma and milk DHA is altered. The resulting higher milk DHA concentrations are beneficial for infants.
Das, S & Joshi, SS 2010, 'Modeling of spark erosion rate in microwire-EDM', The International Journal of Advanced Manufacturing Technology, vol. 48, no. 5-8, pp. 581-596.
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Datta, N & Hsieh, M-H 2010, 'Universal coding for transmission of private information', J. Math. Phys., vol. 51, no. 12, p. 122202.
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We consider the scenario in which Alice transmits private classical messages
to Bob via a classical-quantum channel, part of whose output is intercepted by
an eavesdropper, Eve. We prove the existence of a universal coding scheme under
which Alice's messages can be inferred correctly by Bob, and yet Eve learns
nothing about them. The code is universal in the sense that it does not depend
on specific knowledge of the channel. Prior knowledge of the probability
distribution on the input alphabet of the channel, and bounds on the
corresponding Holevo quantities of the output ensembles at Bob's and Eve's end
suffice.
Deng, W, Jin, D, Drozdowicz-Tomsia, K, Yuan, J & Goldys, EM 2010, 'Europium Chelate (BHHCT-Eu3+) and Its Metal Nanostructure Enhanced Luminescence Applied to Bioassays and Time-Gated Bioimaging', Langmuir, vol. 26, no. 12, pp. 10036-10043.
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Devitt, S 2010, 'Scalable quantum information processing and the optical topological quantum computer', Optics and Spectroscopy, vol. 108, no. 2, pp. 267-281.
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Ding, F, Huang, X, Wen, B & Yan, Z 2010, 'Aliasing radar receiver in FMICW system', IEICE Electronics Express, vol. 7, no. 10, pp. 697-703.
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Ding, GKC 2010, 'Sustainability Assessment of Residential Development – An Australian Experience', International Journal of Construction Management, vol. 10, no. 2, pp. 19-32.
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Environmental performance of residential development has played an important role in achieving the goal of sustainable construction. Green homes have been or are being built in many countries. This paper discusses the issues of sustainability and its roles in residential developments. This paper also examines the development of a building and sustainability index (BASIX) for mandatory assessments of all residential developments in New South Wales (NSW), Australia. Data collection includes examining the methodology of BASIX in assessing sustainability performance of residential development in the three broad areas of energy and water efficiency as well as indoor thermal comfort. The introduction of BASIX has had a profound impact on the construction industry. An online survey of users of BASIX in the construction industry revealed that the tool has played a significant role in providing a guideline for the sustainability performance of a proposed development and lifting the standard of design practices. The tool has led to better thermal comfort for users and reduced water and energy consumption by all new residential developments in NSW. However successful this has been, there is more to be done such as control of waste and energy usage in the manufacturing of building materials.
Ding, GKC & Shen, LY 2010, 'Assessing sustainability performance of built projects: a building process approach', International Journal of Sustainable Development, vol. 13, no. 3, pp. 267-267.
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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 also 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 value 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. Copyright © 2010 Inderscience Enterprises Ltd.
Dolnicar, S, Hurlimann, A & Nghiem, LD 2010, 'The effect of information on public acceptance – The case of water from alternative sources', Journal of Environmental Management, vol. 91, no. 6, pp. 1288-1293.
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Dong, H, Hussain, FK & Chang, E 2010, 'A Human-Centered Semantic Service Platform for the Digital Ecosystems Environment', WORLD WIDE WEB-INTERNET AND WEB INFORMATION SYSTEMS, vol. 13, no. 1-2, pp. 75-103.
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Digital Ecosystems (DEST) have emerged with the purpose of enhancing communications among small and medium enterprises (SMEs) within the worldwide Business Ecosystem. However, because of the diversity and heterogeneity of the services in the DEST environ
Dos Santos, A, da Rocha, CG & Lepre, P 2010, 'Barriers and opportunities in developing 'do-it-yourself' products for low-income housing', Journal of Construction in Developing Countries, vol. 15, no. 1, pp. 29-43.
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Direct involvement of the user in the assembling process of his/her own products or even entire house is a reality among low-income populations in developing countries. Nevertheless, there are a limited number of products that have actually been designed from a do-it-yourself (DIY) perspective, which results in several problems, such as poor user safety while the product is being assembled or inadequate results from an improvised assembling. Hence, the main goal of this paper is to analyse barriers to and opportunities for developing DIY products for low-income housing in developing countries. The research method utilises a case study of a DIY product consisting of a hybrid solution that acted as both a partition wall and a wardrobe. The identified opportunities included more systematic use of existing craft competencies among low-income families and the possibility of cost reduction through DIY concepts. Major barriers included the perception of the DIY product as inferior and the difficulty of communicating the DIY assembly process to users who quite often are illiterate.
Du, H, Zhang, N, Ji, JC & Gao, W 2010, 'Robust Fuzzy Control of an Active Magnetic Bearing Subject to Voltage Saturation', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, vol. 18, no. 1, pp. 164-169.
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Based on a recently proposed model for the active-magnetic-bearing (AMB) switching mode of operation, this paper presents a robust TakagiâSugeno-model-based fuzzy-control strategy to stabilize the AMB with fast response speed subject to control-voltage saturation and parameter uncertainties. The sufficient conditions for the existence of such a controller are derived in terms of linear matrix inequalities. Numerical simulations against the proposed AMB model and a high-fidelity AMB model are used to validate the effectiveness of the proposed approach.
Duan, R, Severini, S & Winter, A 2010, 'Zero-error communication via quantum channels, non-commutative graphs and a quantum Lovasz theta function', IEEE Trans. Inf. Theory 59(2):1164-1174, 2013, vol. 59, no. 2, pp. 1164-1174.
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We study the quantum channel version of Shannon's zero-error capacity
problem. Motivated by recent progress on this question, we propose to consider
a certain operator space as the quantum generalisation of the adjacency matrix,
in terms of which the plain, quantum and entanglement-assisted capacity can be
formulated, and for which we show some new basic properties.
Most importantly, we define a quantum version of Lovasz' famous theta
function, as the norm-completion (or stabilisation) of a 'naive' generalisation
of theta. We go on to show that this function upper bounds the number of
entanglement-assisted zero-error messages, that it is given by a semidefinite
programme, whose dual we write down explicitly, and that it is multiplicative
with respect to the natural (strong) graph product.
We explore various other properties of the new quantity, which reduces to
Lovasz' original theta in the classical case, give several applications, and
propose to study the operator spaces associated to channels as 'non-commutative
graphs', using the language of Hilbert modules.
Duan, R, Xin, Y & Ying, M 2010, 'Locally indistinguishable subspaces spanned by three-qubit unextendible product bases', PHYSICAL REVIEW A, vol. 81, no. 3, pp. 1-10.
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We study the local distinguishability of general multiqubit states and show that local projective measurements and classical communication are as powerful as the most general local measurements and classical communication. Remarkably, this indicates that
Dunwell, T, Hesson, L, Rauch, TA, Wang, L, Clark, RE, Dallol, A, Gentle, D, Catchpoole, D, Maher, ER, Pfeifer, GP & Latif, F 2010, 'A Genome-wide screen identifies frequently methylated genes in haematological and epithelial cancers', Molecular Cancer, vol. 9, no. 1, p. 44.
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Abstract
Background
Genetic as well as epigenetic alterations are a hallmark of both epithelial and haematological malignancies. High throughput screens are required to identify epigenetic markers that can be useful for diagnostic and prognostic purposes across malignancies.
Results
Here we report for the first time the use of the MIRA assay (methylated CpG island recovery assay) in combination with genome-wide CpG island arrays to identify epigenetic molecular markers in childhood acute lymphoblastic leukemia (ALL) on a genome-wide scale. We identified 30 genes demonstrating methylation frequencies of ≥25% in childhood ALL, nine genes showed significantly different methylation frequencies in B vs T-ALL. For majority of the genes expression could be restored in methylated leukemia lines after treatment with 5-azaDC. Forty-four percent of the genes represent targets of the polycomb complex. In chronic myeloid leukemia (CML) two of the genes, (TFAP2A and EBF2), demonstrated increased methylation in blast crisis compared to chronic phase (P < 0.05). Furthermore hypermethylation of an autophagy related gene ATG16L2 was associated with poorer prognosis in terms of molecular response to Imatinib treatment. Lastly we demonstrated that ten of these genes were also frequently methylated in common epithelial cancers.
Conclusion
In summary we have identified a large number of genes showing frequent methylation in childhood ALL, methylation status of two of these genes is associated with advanced disease in CML and methylation status of another gene is associated with prognosis...
Egea, K, Lu, J, Xiao, J & Clear, T 2010, 'Internationalisation and Cross Cultural Issues in Computing Education', Conferences in Research and Practice in Information Technology Series, vol. 103, pp. 25-31.
El Saliby, IJ, Shon, HK, Okour, YH, Vigneswaran, S, Senthilnanthanan, M & Kandasamy, J 2010, 'Production of Titanium Dioxide Nanoparticles and Nanostructures from Dye Wastewater Sludge - Characterisation and Evaluation of Photocatalytic activity', JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES, vol. 13, no. 1, pp. 15-20.
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Producing a useful catalyst (TiO2) from sludge is possible after the incineration of sludge produced from the flocculation of wastewater by Ti-salts. In this study, TiO2 was successfully produced from dye wastewater sludge. Titanate nanotubes and nanoaggregates were produced through alkaline-hydrothermal and hydrogen peroxide treatments, respectively. Catalysts were characterised using scanning electron microscope and BET surface measurement. The photocatalytic activity was monitored for the photodegradation of organics in synthetic wastewater (SWW) and the photodecomposition of gas acetaldehyde. Nanotubes with a high surface area of 155.83 m2/g were obtained by alkaline-hydrothermal treatment, while lower surface area (65.22 m2/g) nanoaggregates were synthesized after hydrogen peroxide treatment. In general, nanoparticles, nanotubes and nanoaggregates showed mild photocatalytic activity. All catalysts showed similar photocatalytic activity for the photodecomposition of organics in SWW and the photodecomposition of acetaldehyde.
Elliott, RM, McKinley, SM & Eager, D 2010, 'A pilot study of sound levels in an Australian adult general intensive care unit', NOISE & HEALTH, vol. 12, no. 46, pp. 26-36.
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High technology and activity levels in the intensive care unit (ICU) lead to elevated and disturbing sound levels. As noise has been shown to affect the ability of patients to rest and sleep, continuous sound levels are required during sleep investigations. The aim of this pilot study was to develop a robust protocol to measure continuous sound levels for a larger more substantive future study to improve sleep for the ICU patient. A review of published studies of sound levels in intensive care settings revealed sufficient information to develop a study protocol. The study protocol resulted in 10 usable recordings out of 11 attempts to collect pilot data. The mean recording time was 17.49 ± 4.5 h. Sound levels exceeded recommendations made by the World Health Organization (WHO) for hospitals. The mean equivalent sound level (LAeq) was 56.22 ± 1.65 dB and LA90 was 46.8 ± 2.46 dB. The data reveal the requirement for a noise reduction program within this ICU.
Epaarachchi, JA, Canning, J & Stevenson, M 2010, 'The Response of Embedded NIR (830 nm) Fiber Bragg Grating Sensors in Glass Fiber Composites under Fatigue Loading', JOURNAL OF COMPOSITE MATERIALS, vol. 44, no. 7, pp. 809-819.
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Erdei, L, Vigneswaran, S & Kandasamy, J 2010, 'Modelling of submerged membrane flocculation hybrid systems using statistical and artificial neural networks methods', JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, vol. 59, no. 2-3, pp. 198-208.
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Hybrid membrane filtration processes involve complex physical, chemical and biological phenomena, thus their mechanistic modelling is challenging. The chief advantages of statistical and artificial neural networks (ANN) models (data-driven models) are that they do not require assumptions and simplifications to establish relationships from data. This paper investigates the characteristics and performance of several data-driven methods to model a hybrid membrane system. The focus is on the application of regression analysis and artificial intelligence based methods to a steady-state system. Among empirically based approaches, ANN neural networks methods were found to be very useful to predict permeate quality and membrane fouling. In the past multivariate nonlinear regression had barely been investigated for process modelling in water and waste water treatment. In this study polynomial multivariate nonlinear regression showed a superior performance. Multivariate parametric nonlinear models could match the performance of the nonparametric ANN models in the empirical modelling of complex systems, especially when combined with advanced optimization methods. This paper gives the methodology of how one could optimize a membrane hybrid system using ANN, validating it with one set of data. The same procedure/methodology can be applied to similar systems.
Erfani, S & Akhgar, B 2010, 'A novel knowledge management implementation model for mobile telecommunication industry', World Appl Sci J, vol. 11, no. 1, pp. 29-37.
Esfandiary, R, Yee, L, Ohtake, S, Martin, RA, Truong-Le, VL, Lechuga-Ballesteros, D, Moore, DD, Joshi, SB & Middaugh, CR 2010, 'Biophysical characterization of rotavirus serotypes G1, G3, and G4', Human Vaccines, vol. 6, no. 5, pp. 390-398.
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Fang, F, Ni, B-J, Xie, W-M, Sheng, G-P, Liu, S-G, Tong, Z-H & Yu, H-Q 2010, 'An integrated dynamic model for simulating a full-scale municipal wastewater treatment plant under fluctuating conditions', Chemical Engineering Journal, vol. 160, no. 2, pp. 522-529.
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Fatahi, B, Khabbaz, H & Indraratna, B 2010, 'Bioengineering ground improvement considering root water uptake model', ECOLOGICAL ENGINEERING, vol. 36, no. 2, pp. 222-229.
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Bioengineering features of native vegetation are currently being evolved to enhance soil stiffness, slope stabilisation and erosion control. The effects of tree roots on soil moisture content and ground settlement are discussed in this paper. Matric suction induced by tree roots is a key factor, governing the properties of unsaturated soils, directly imparting stability to slopes and resistance for yielding behaviour. A mathematical model for the rate of root water uptake that considers ground conditions, type of vegetation and climatic parameters has been developed. This study highlights the inter-related parameters contributing to the development of a conceptual evapo-transpiration and root moisture uptake equilibrium model that is then incorporated in a comprehensive numerical finite element model. The developed model considers fully coupled-flow-deformation behaviour of soil. Field measurements obtained by the Authors from a site in Victoria, South of Australia, are used to validate the model. In this study, the active tree root distribution has been predicted by measuring soil organic content distribution. The predicted results show acceptable agreement with the field data in spite of the assumptions made for simplifying the effects of soil heterogeneity and anisotropy. The results prove that the proposed root water uptake model can reliably predict the region of the maximum matric suction away from the tree axis.
Feiping Nie, Dong Xu, Tsang, IW-H & Changshui Zhang 2010, 'Flexible Manifold Embedding: A Framework for Semi-Supervised and Unsupervised Dimension Reduction', IEEE Transactions on Image Processing, vol. 19, no. 7, pp. 1921-1932.
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Feng Hao, Yu Zhong-Yuan, Liu Yu-Min, Lu Peng-Fei, Jia Bo-Yong, Yao Wen-Jie, Tian Hong-Da, Zhao Wei & Xu Zi-Huan 2010, 'Theoretical study on strain compensation layer for growth of quantum dots', Acta Physica Sinica, vol. 59, no. 2, pp. 765-765.
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The optical properties of quantum dots have a close relationship with the size fluctuation,density,strain filed distribution of the dots and the spacer layer thickness. InAs/GaAs quantum dot with GaNXAs1-X strain compensation layers (SCL) is theoretically investigated for improving the crystal quality. The reduction effects of the spacer thickness are discussed quantitatively. The influence of the location and the N concentration of the GaNXAs1-X SCL on compensation of the strain formed on quantum dots (QDs) and the system is also discussed. The reduction effect of SCL on strain of system is analyzed and the vertical alignment probability between the adjacent layers is calculated. Our results can provide a theoretical basis for finding the optimal properties of SCL to realize the high quality multi-QD layer.
Feng, M, Dong, G, Li, J, Tan, Y-P & Wong, L 2010, 'PATTERN SPACE MAINTENANCE FOR DATA UPDATES AND INTERACTIVE MINING', COMPUTATIONAL INTELLIGENCE, vol. 26, no. 3, pp. 282-317.
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This article addresses the incremental and decremental maintenance of the frequent pattern space. We conduct an in-depth investigation on how the frequent pattern space evolves under both incremental and decremental updates. Based on the evolution analys
Ferguson, S, Kenny, DT & Cabrera, D 2010, 'Effects of Training on Time-Varying Spectral Energy and Sound Pressure Level in Nine Male Classical Singers', Journal of Voice, vol. 24, no. 1, pp. 39-46.
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Ferrie, C 2010, 'Quasi-probability representations of quantum theory with applications to quantum information science', Rep. Prog. Phys., vol. 74, no. 11, p. 116001.
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This article comprises a review of both the quasi-probability representations
of infinite-dimensional quantum theory (including the Wigner function) and the
more recently defined quasi-probability representations of finite-dimensional
quantum theory. We focus on both the characteristics and applications of these
representations with an emphasis toward quantum information theory. We discuss
the recently proposed unification of the set of possible quasi-probability
representations via frame theory and then discuss the practical relevance of
negativity in such representations as a criteria for quantumness.
Fleming, PA, Argraves, WS, Gentile, C, Neagu, A, Forgacs, G & Drake, CJ 2010, 'Fusion of uniluminal vascular spheroids: A model for assembly of blood vessels', Developmental Dynamics, vol. 239, no. 4, pp. spcone-spcone.
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Fleming, PA, Argraves, WS, Gentile, C, Neagu, A, Forgacs, G & Drake, CJ 2010, 'Fusion of uniluminal vascular spheroids: A model for assembly of blood vessels', Developmental Dynamics, vol. 239, no. 2, pp. 398-406.
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Fleming, PA, Argraves, WS, Gentile, C, Neagu, A, Forgacs, G & Drake, CJ 2010, 'Fusion of uniluminal vascular spheroids: A model for assembly of blood vessels', Developmental Dynamics, vol. 239, no. 3, pp. spcone-spcone.
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Gaddis, EJB & Voinov, A 2010, 'Spatially Explicit Modeling of Land Use Specific Phosphorus Transport Pathways to Improve TMDL Load Estimates and Implementation Planning', Water Resources Management, vol. 24, no. 8, pp. 1621-1644.
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Gaddis, EJB, Falk, HH, Ginger, C & Voinov, A 2010, 'Effectiveness of a participatory modeling effort to identify and advance community water resource goals in St. Albans, Vermont', Environmental Modelling & Software, vol. 25, no. 11, pp. 1428-1438.
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Gallagher, IJ, Scheele, C, Keller, P, Nielsen, AR, Remenyi, J, Fischer, CP, Roder, K, Babraj, J, Wahlestedt, C, Hutvagner, G, Pedersen, BK & Timmons, JA 2010, 'Integration of microRNA changes in vivo identifies novel molecular features of muscle insulin resistance in type 2 diabetes', Genome Medicine, vol. 2, no. 2, pp. 9-9.
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Gallo, DA, Foster, KT, Wong, JT & Bennett, DA 2010, 'False recollection of emotional pictures in Alzheimer's disease', Neuropsychologia, vol. 48, no. 12, pp. 3614-3618.
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External cognition concerns knowledge that is embedded in our everyday lives and environment. One type of knowledge is memories, recollections of events that occurred in the past. So how do we remember them? One way this can be done is through cuing and reconstructing. These cues can be internal, in our minds, or in our everyday environment. In this paper we look at memory cues in our environment by comparing the effect of cue modality (odor, physical artifact, photo, sound, and video) on the number of memory details people had from a unique one-day real-life event. Contrary to expectation, the no-cue condition (in effect, only a question asking the participants to write down their memories) created on average significantly more memory-details than the cued conditions.
Galvin, AL, Jennings, LM, Tipper, JL, Ingham, E & Fisher, J 2010, 'Wear and Creep of Highly Crosslinked Polyethylene against Cobalt Chrome and Ceramic Femoral Heads', Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, vol. 224, no. 10, pp. 1175-1183.
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The wear and creep characteristics of highly crosslinked ultrahigh-molecular-weight polyethylene (UHMWPE) articulating against large-diameter (36 mm) ceramic and cobalt chrome femoral heads have been investigated in a physiological anatomical hip joint simulator for 10 million cycles. The crosslinked UHMWPE/ceramic combination showed higher volume deformation due to creep plus wear during the first 2 million cycles, and a steady-state wear rate 40 per cent lower than that of the crosslinked UHMWPE/cobalt chrome combination. Wear particles were isolated and characterized from the hip simulator lubricants. The wear particles were similar in size and morphology for both head materials. The particle isolation methodology used could not detect a statistically significant difference between the particles produced by the cobalt chrome and alumina ceramic femoral heads.
Gandomi, AH, Alavi, AH & Sahab, MG 2010, 'New formulation for compressive strength of CFRP confined concrete cylinders using linear genetic programming', Materials and Structures, vol. 43, no. 7, pp. 963-983.
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Gandomi, AH, Alavi, AH & Taghipour, A 2010, 'Discussion on “Alternative data-driven methods to estimate wind from waves by inverse modeling” by Mansi Daga, M. C. Deo [Natural Hazards (2008) NHAZ 524, Article 9299, DOI 10.1007/s11069-008-9299-2]', Natural Hazards, vol. 52, no. 3, pp. 671-673.
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Gandomi, AH, Alavi, AH, Arjmandi, P, Aghaeifar, A & Seyednour, R 2010, 'Genetic programming and orthogonal least squares: a hybrid approach to modeling the compressive strength of CFRP-confined concrete cylinders', Journal of Mechanics of Materials and Structures, vol. 5, no. 5, pp. 735-753.
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Gandomi, AH, Alavi, AH, Sahab, MG & Arjmandi, P 2010, 'Formulation of elastic modulus of concrete using linear genetic programming', Journal of Mechanical Science and Technology, vol. 24, no. 6, pp. 1273-1278.
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Gao, Y, Zhang, G, Ma, J & Lu, J 2010, 'A lambda-Cut and Goal-Programming-Based Algorithm for Fuzzy-Linear Multiple-Objective Bilevel Optimization', IEEE TRANSACTIONS ON FUZZY SYSTEMS, vol. 18, no. 1, pp. 1-13.
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Bilevel-programming techniques are developed to handle decentralized problems with two-level decision makers, which are leaders and followers, who may have more than one objective to achieve. This paper proposes a λ-cut and goalprogramming-based algorithm to solve fuzzy-linear multipleobjective bilevel (FLMOB) decision problems. First, based on the definition of a distance measure between two fuzzy vectors using λ-cut, a fuzzy-linear bilevel goal (FLBG) model is formatted, and related theorems are proved. Then, using a λ-cut for fuzzy coefficients and a goal-programming strategy for multiple objectives, a λ-cut and goal-programming-based algorithm to solve FLMOB decision problems is presented.Acase study for a newsboy problem is adopted to illustrate the application and executing procedure of this algorithm. Finally, experiments are carried out to discuss and analyze the performance of this algorithm.
Ge, Y, Esselle, KP & Bird, TS 2010, 'A METHOD TO DESIGN DUAL-BAND, HIGH-DIRECTIVITY EBG RESONATOR ANTENNAS USING SINGLE-RESONANT, SINGLE-LAYER PARTIALLY REFLECTIVE SURFACES', Progress In Electromagnetics Research C, vol. 13, pp. 245-257.
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A new method is presented to design dual-band, high- directivity, EBG-resonator antennas using simple, single-resonant, single-layer partially reflective surfaces (PRS). The large, positive gradient of the reflection phase versus frequency curve of partially reflecting surfaces, observed only close to the resonance frequency of the PRS, is exploited for this purpose. An example single-resonant PRS, based on a frequency-selective surface (FSS) composed of a printed slot array, was designed. Then it is used to design an EBG- resonator antenna to demonstrate the feasibility of achieving dual-band performance. Cavity models are employed, together with the reflection characteristics of the PRS, to understand the operation of the device at critical frequencies such as cavity resonance frequencies and the PRS resonance frequency. Antenna simulations and computed results confirm the dual-band operation of this very simple, single-layer, low- profile EBG-resonator antenna. It resonates in two bands centered at 10.5 GHz and 12.3 GHz. The peak directivity in each band is 18.2 dBi and 20.5 dBi, and the 3 dB directivity bandwidth of each band is 7.5% and 8.7%, respectively.
Ge, Y, Sun, Y, Lu, S & Dutkiewicz, E 2010, 'A distributed decision making method in cognitive radio networks for spectrum management', Chinese Journal of Electronics, vol. 19, no. 2, pp. 195-200.
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In order to make full utilization of the scarce spectrum resources for Cognitive radio networks, secondary users are expected to exploit the available spectrum of primary users. However, when there are several spectrum bands available, how to select an appropriate one for the secondary user according to the spectrum quality and the QoS requirements of different kinds of applications is a new challenge. In this paper, we propose a new Automatic distributed spectrum decision (ADSD) method to solve this problem. ADSD considers multiple spectrum characterization parameters, in particular, the primary users' arrival probability, to estimate the quality of the available spectrum bands. A weight auto-generation mechanism is included to automatically determine the weights of different parameters, thus avoiding the difficulty and irrationality when relying on the users to specify the weights directly. In addition, in conjunction with the reconfiguration mechanism, ADSD can reduce the rate of spectrum handoffs by reconfiguring the transmission parameters rather than making a new decision for the existing transmission. Simulation results show that without any users' interference, ADSD can automatically select the appropriate spectrum for transmission and significantly improve the Cognitive Radio network performance in terms of throughput and the spectrum handoff rate.
Geng, X, Smith-Miles, K, Wang, L, Li, M & Wu, Q 2010, 'Context-aware fusion: A case study on fusion of gait and face for human identification in video', Pattern Recognition, vol. 43, no. 10, pp. 3660-3673.
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Most work on multi-biometric fusion is based on static fusion rules. One prominent limitation of static fusion is that it cannot respond to the changes of the environment or the individual users. This paper proposes context-aware multi-biometric fusion, which can dynamically adapt the fusion rules to the real-time context. As a typical application, the context-aware fusion of gait and face for human identification in video is investigated. Two significant context factors that may affect the relationship between gait and face in the fusion are considered, i.e., view angle and subject-to-camera distance. Fusion methods adaptable to these two factors based on either prior knowledge or machine learning are proposed and tested. Experimental results show that the context-aware fusion methods perform significantly better than not only the individual biometric traits, but also those widely adopted static fusion rules including SUM, PRODUCT, MIN, and MAX. Moreover, context-aware fusion based on machine learning shows superiority over that based on prior knowledge.
Geng, XY, Indraratna, B & Rujikiatkamjorn, C 2010, 'Analytical solutions for a single vertical drain with time-dependent vacuum combined surcharge preloading in membrane and membraneless systems', IOP Conference Series: Materials Science and Engineering, vol. 10, pp. 012117-012117.
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Ghandeharioon, A, Indraratna, B & Rujikiatkamjorn, C 2010, 'Analysis of Soil Disturbance Associated with Mandrel-Driven Prefabricated Vertical Drains Using an Elliptical Cavity Expansion Theory', International Journal of Geomechanics, vol. 10, no. 2, pp. 53-64.
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Gil-Lafuente, AM & Merigó, JM 2010, 'Decision Making Techniques in Political Management', Studies in Fuzziness and Soft Computing, vol. 254, pp. 389-405.
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In this paper, we develop a new decision making model and apply it in political management. We use a framework based on the use of ideals in the decision process and several similarity measures such as the Hamming distance, the adequacy coefficient and the index of maximum and minimum level. For each similarity measure, we use different types of aggregation operators such as the simple average, the weighted average, the ordered weighted averaging (OWA) operator and the generalized OWA (GOWA) operator. This new approach considers several attributes and different scenarios that may occur in the uncertain environment. We see that depending on the particular type of aggregation operator used the results may lead to different decisions. © 2010 Springer-Verlag Berlin Heidelberg.
Govindan, P & Joshi, SS 2010, 'Experimental characterization of material removal in dry electrical discharge drilling', International Journal of Machine Tools and Manufacture, vol. 50, no. 5, pp. 431-443.
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Grassl, M, Ji, Z, Wei, Z & Zeng, B 2010, 'Quantum-capacity-approaching codes for the detected-jump channel', Physical Review A, vol. 82, no. 6.
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Guo, L, Wang, S, Guo, N, Qiu, J, Zhu, JG, Guo, Y, Wang, Y & Xu, W 2010, 'Simulation and optimization of six-stage electromagnetic coilgun', International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 465-471.
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This paper presents a method based on Current Hoop Model for the analysis and design of induction coilgun. The cylindrically symmetric armature is subdivided into concentric hoops with diverse rectangular crosssections, in each of which the current is assumed to be uniformly distributed. An equivalent analytical model considering mutual coupling of coils and armature hoops is constructed for dynamic simulation of the coilgun. Based on this model, the selfand mutualinductances of exciting winding and hoops are calculated by Neumann method. The circuit equations are solved coupled with the equation of motion of projectile by using the Treanor method to ensure the convergence. Comparison between the experimental results and the numerical results simulated by Finite Element method (FEM) shows the validity of the presented simulation method for coilgun. The optimization of a sixstage coilgun is achieved by employing the genetic algorithm (GA).
Guo, W, Ngo, H-H, Dharmawan, F & Palmer, CG 2010, 'Roles of polyurethane foam in aerobic moving and fixed bed bioreactors', BIORESOURCE TECHNOLOGY, vol. 101, no. 5, pp. 1435-1439.
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The aim of this study was to investigate the performance of sponge as an active mobile carrier for attachedgrowth biomass in three typical types of aerobic bioreactors to treat a high strength synthetic wastewater. The results show that sponge thickness deteriorated the organic and nutrient removal and 1 cm is the optimumthickness for fixed-bed sponge biofilter (SBF). The sponge volume had significant impact on phosphorus removal rather than organic or nitrogen removal, and 20% volume of sponge could achieve 100% T-P removal within 3 h in a sponge batch reactor (SBR). When sponge coupled with submerged membrane bioreactor (SMBR), the single system show outstanding ammonium (100% at filtration flux of 10 and 15 L/m2 h) and phosphorus (>91% at all fluxes range) removal with optimum pH range of 6â7
Guo, W, Ngo, H-H, Vigneswaran, S, Dharmawan, F, Nguyen, TT & Aryal, R 2010, 'Effect of different flocculants on short-term performance of submerged membrane bioreactor', SEPARATION AND PURIFICATION TECHNOLOGY, vol. 70, no. 3, pp. 274-279.
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This study aims at evaluating the impacts of flocculant addition to a submerged membrane bioreactor (SMBR). Three types of common flocculants (FeCl3, PACl and chitosan) were tested based on the performance of organic and nutrients removal, respiration test and fouling control. The data showed that all of the flocculants not only could keep high removal efficiencies of DOC and COD (>90%) compared to SMBR alone, but also exhibited different advantages and disadvantages according to the properties of the flocculants. For instance, inorganic flocculants strongly affected the nitrification process and organic flocculant addition slightly reduced the phosphorus removal efficiency in SMBR. After adding FeCl3 and PACl, NH4-N removal decreased to 31.9% and 11.1%, while T-N removal dropped to 22% and 0.5% respectively. Although flocculants addition improved sludge settleability and oxygen transfer to some extent, organic flocculant obtained more stable sludge volume indexes (SVI) and specific oxygen uptake rates (SOUR) than those of inorganic flocculants. Inorganic flocculants, on the other hand, led to more reduction of soluble microbial products (SMP) present in mixed liquor and lower membrane fouling rates (1.3 and 2.6 kPa/day for FeCl3 and PACl respectively).
Guo, WS, Zhang, R, Vigneswaran, S, Ngo, HH & Kandasamy, J 2010, 'Membranes coupled with physico chemical treatment in water reuse', WATER SCIENCE AND TECHNOLOGY, vol. 61, no. 2, pp. 513-519.
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In this study, short-term experiments were conducted with different configurations of membrane hybrid systems to treat biological treated sewage effluent containing refractory organic pollutants: (i) submerged hollow fiber microfiltration (SMF) alone; (ii) spiral flocculator (SF)-SMF without settling; (iii) SF-PAC-SMF without settling and (iv) SMF with magnetic ion exchange resin MIEXw pretreatment. The results indicated that the pre-flocculation of SF could improve the mitigation of membrane fouling significantly even when the system was operated at a high membrane filtration rate. The transmembrane pressure (TMP) of SF-PAC-SMF only increased marginally (0.8 kPa over 8 hours). SF-SMF without the addition of powdered activated carbon (PAC) also took a relatively long duration for the TMP to increase. The TMP only increased by 2.5 kPa over 8 hours. The SF-PAC-MF system resulted in a high dissolved organic carbon (DOC) removal of more than 96%. When used as pre-treatment to submerged membranes, the fluidized bed MIEXw contactor could remove a significant amount of organic matter in wastewater. This pre-treatment helped to reduce the membrane fouling and kept the TMP low during the membrane operation.
Guo, X, Lu, X, Fang, X, Mao, Y, Wang, Z, Chen, L, Xu, X, Yang, H & Liu, Y 2010, 'Lithium storage in hollow spherical ZnFe2O4 as anode materials for lithium ion batteries', Electrochemistry Communications, vol. 12, no. 6, pp. 847-850.
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Guo, Z, Dong, Y, Wang, J & Lu, H 2010, 'The Forecasting Procedure for Long-Term Wind Speed in the Zhangye Area', Mathematical Problems in Engineering, vol. 2010, pp. 1-17.
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Energy crisis has made it urgent to find alternative energy sources for sustainable energy supply; wind energy is one of the attractive alternatives. Within a wind energy system, the wind speed is one key parameter; accurately forecasting of wind speed can minimize the scheduling errors and in turn increase the reliability of the electric power grid and reduce the power market ancillary service costs. This paper proposes a new hybrid model for long-term wind speed forecasting based on the first definite season index method and the Autoregressive Moving Average (ARMA) models or the Generalized Autoregressive Conditional Heteroskedasticity (GARCH) forecasting models. The forecasting errors are analyzed and compared with the ones obtained from the ARMA, GARCH model, and Support Vector Machine (SVM); the simulation process and results show that the developed method is simple and quite efficient for daily average wind speed forecasting of Hexi Corridor in China.
Ha, PN, Fujita, H, Uchida, N & Ozaki, K 2010, 'Analysis and Control of Heat Distribution in a Zone-Control Induction Heating System', IEEJ Transactions on Industry Applications, vol. 130, no. 7, pp. 926-932.
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Habibi, MK, Joshi, SP & Gupta, M 2010, 'Hierarchical magnesium nano-composites for enhanced mechanical response', Acta Materialia, vol. 58, no. 18, pp. 6104-6114.
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Haddad, K, Rahman, A, Weinmann, PE, Kuczera, G & Ball, J 2010, 'Streamflow data Preparation for Regional Flood Frequency Analysis: Lessons from Southeast Australia', Australasian Journal of Water Resources, vol. 14, no. 1, pp. 17-32.
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This paper presents a case study on streamflow data preparation for a regional flood frequency analysis (RFFA) project for the states of Victoria and NSW, in connection with the forthcoming edition of Australian Rainfall and Runoff. The study gathered annual maximum flood series data for a large number of stations from Victoria and NSW, and applied various statistical techniques to prepare the final data set. It was found that a large primary data set, even if selected using a fairly stringent set of criteria, cannot guarantee a similarly large final data set, as streamflow data are affected by many sources of uncertainty. The trade-offs between quality and quantity are discussed and illustrated. The maximum rating ratio, defined as the ratio of the largest estimated flow and the maximum measured flow at a gauging station, is used to identify stations whose quantiles may be seriously affected by rating curve errors. In a case study involving Victorian stations, the importance of maintaining a high spatial coverage of stations was demonstrated. It was shown that a 50% reduction in the number of stations used in a RFFA resulted in an increase of the standard error of prediction of flood quantiles up to 90%.
Hain, D, Bettencourt, BR, Okamura, K, Csorba, T, Meyer, W, Jin, Z, Biggerstaff, J, Siomi, H, Hutvagner, G, Lai, EC, Welte, M & Müller, H-AJ 2010, 'Natural Variation of the Amino-Terminal Glutamine-Rich Domain in Drosophila Argonaute2 Is Not Associated with Developmental Defects', PLoS ONE, vol. 5, no. 12, pp. e15264-e15264.
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The Drosophila argonaute2 (ago2) gene plays a major role in siRNA mediated RNA silencing pathways. Unlike mammalian Argonaute proteins, the Drosophila protein has an unusual amino-terminal domain made up largely of multiple copies of glutamine-rich repea
Hamade, RF, Moulianitis, VC, D'Addonna, D & Beydoun, G 2010, 'A dimensional tolerancing knowledge management system using Nested Ripple Down Rules (NRDR)', ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE, vol. 23, no. 7, pp. 1140-1148.
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Han, N, Feng, S & Qiu, X 2010, 'Active control of one-dimension impulsive reflection based on a prediction method', The Journal of the Acoustical Society of America, vol. 127, no. 3, pp. 1193-1196.
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Hao, H, Stewart, MG, Li, Z-X & Shi, Y 2010, 'RC Column Failure Probabilities to Blast Loads', International Journal of Protective Structures, vol. 1, no. 4, pp. 571-591.
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Structural reliability analyses are commonly applied to estimation of probabilities of structural damage to static and dynamic loads such as earthquake, wind and wave loads. Although blast loadings acting on structures from accidental explosions or hostile bombings are very difficult to be accurately predicted owing to many uncertain parameters that influence explosion shock wave propagation and shock wave interaction with structures, reliability analyses of structural failure to blast loadings with consideration of uncertainties in blast loading and structural parameters are very limited. Instead, a large safety factor is usually used to account for uncertain variations in blast loading and structural parameters in blast-resistant design and analysis. This may lead to an inaccurate design of structures to resist blast loads, and an inaccurate assessment of structure performance in a given explosion scenario. In this study, reliability analyses of three example RC columns to randomly varying blast loads are carried out. The column dimensions, reinforcement ratios and material strengths are assumed to be normally distributed with the respective design parameters as the mean values. The mean value and standard deviation of the peak reflected pressure and duration of the blast load at various scaled distances are derived from available empirical formulae, and are used in this study to model the blast pressure variations. Failure probabilities of the example RC columns subjected to blast loads of different scaled distances are estimated. Numerical results are compared with those obtained with the deterministic blast loading or deterministic column property assumptions. The importance of considering the random variations of structural properties and blast loadings in assessing the blast load effects on RC columns is discussed.
Hao, X, Wang, Q, Cao, Y & van Loosdrecht, MCM 2010, 'Experimental evaluation of decrease in the activities of polyphosphate/glycogen-accumulating organisms due to cell death and activity decay in activated sludge', Biotechnology and Bioengineering, vol. 106, no. 3, pp. n/a-n/a.
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Hao, X, Wang, Q, Cao, Y & van Loosdrecht, MCM 2010, 'Measuring the activities of higher organisms in activated sludge by means of mechanical shearing pretreatment and oxygen uptake rate', Water Research, vol. 44, no. 13, pp. 3993-4001.
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Hao, X-D, Wang, Q-L, Zhu, J-Y & Van Loosdrecht, MCM 2010, 'Microbiological Endogenous Processes in Biological Wastewater Treatment Systems', Critical Reviews in Environmental Science and Technology, vol. 40, no. 3, pp. 239-265.
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Hasan, AM, Saied, P, Arvin, PAK, Biswajeet, P, Nikouravan, B & Mansor, S 2010, 'Disasters and risk reduction in groundwater: Zagros mountain southwest Iran using geoinformatics techniques', Disaster Advances, vol. 3, no. 1, pp. 51-57.
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For more effective use of ground fresh water resources, a remote sensing and GIS have been used in many places in last decades. The digital topographic maps in scale 1:25000 within GIS environment have been studied to observe the risk reduction and changing of the water resources because of the tectonic activities which are crucial to generate a groundwater disaster in the study area. The area has been visually and digitally interpreted to delineate DEM, drainage network, drainage basin, karst landforms, lineaments and lithology for ground water reduction and possible new locations to explore and reduce the risk reduction and disasters. Image elements are used during visual and digital interpretation. Extensive field works have been attempted using global positioning system (GPS) to collect water samples. The study shows that the groundwater is controlled by geomorphology, landslides, lineament analysis, lithology and topography in the study area. This study shows the advantages of remote sensing and GIS techniques for Karst and water resources study. Use of GIS-technologies makes it possible to construct 3D models of river basins and adjust theoretical reserves of the deposits.
Haskett, M, Oehlers, DJ, Ali, M & Wu, C 2010, 'Analysis of Moment Redistribution in Fiber-Reinforced Polymer Plated RC Beams', Journal of Composites for Construction, vol. 14, no. 4, pp. 424-433.
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Hawryszkiewycz, IT 2010, 'Supporting production processes with lightweight platforms', Production Planning & Control, vol. 21, no. 2, pp. 119-129.
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This article begins by describing the trend towards greater adaptability in today's business processes and its implication for supply chains and their emerging characteristics. One such characteristic is greater emphasis on the need for collaboration for
Hayman, DB, Bird, TS, Esselle, KP & Hall, PJ 2010, 'Experimental Demonstration of Focal Plane Array Beamforming in a Prototype Radiotelescope', IEEE Transactions on Antennas and Propagation, vol. 58, no. 6, pp. 1922-1934.
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He, F, Joshi, SB, Moore, DD, Shinogle, HE, Ohtake, S, Lechuga-Ballesteros, D, Martin, RA, Truong-Le, VL & Middaugh, CR 2010, 'Using spectroscopic and microscopic methods to probe the structural stability of human adenovirus type 4', Human Vaccines, vol. 6, no. 2, pp. 202-211.
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Ho, DP, Senthilnanthan, M, Mohammad, JA, Vigneswaran, S, Ngo, HH, Mahinthakumar, G & Kandasamy, J 2010, 'The Application of Photocatalytic Oxidation in Removing Pentachlorophenol from Contaminated Water', JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES, vol. 13, no. 1, pp. 21-26.
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The degradation of sodium salt of pentachlorophenol (PCPS) by photocatalysis with titanium dioxide (TiO2) as the catalyst was investigated. The residual PCPS after photo-degradation was analyzed by high performance liquid chromatograph (HPLC) while the c
Ho, DP, Vigneswaran, S & Ngo, HH 2010, 'Integration of Photocatalysis and Microfiltration in Removing Effluent Organic Matter from Treated Sewage Effluent', SEPARATION SCIENCE AND TECHNOLOGY, vol. 45, no. 2, pp. 155-162.
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An integration of photocatalysis with low-pressure submerged membrane has attracted growing interest for its synergic advantages in water and wastewater treatment. In this study, the adsorption and photocatalytic oxidation of organic compounds by UV light responsive titanium dioxide (TiO2) were investigated. First, the adsorption behavior of the TiO2 was examined by the adsorption isotherm and kinetics experiments. The photocatalytic reactivity of the catalysts was then compared at different operating conditions. The results indicate that the Freundlich model described well the adsorption capacity of both materials. The photocatalytic kinetics showed that the highest removal of effluent organic matter (EfOM) was achieved at an optimum concentration of 1.0 g/L of TiO2. In addition, it was found that the pre-photosensitization with titanium dioxide/ultra-voilet radiation (TiO2/UV) could effectively reduce membrane fouling and enhance the permeate flux of the submerged membrane reactor when it was used as a post-treatment. An increase of 10% in organic removal efficiency was achieved by the posttreatment of membrane filtration. The sustainable flux of the membrane reactor increased from 25 up to 40 L/m2.h when the pretreatment of photocatalysis was used.
Ho-Pham, LT, Nguyen, ND, Lai, TQ & Nguyen, TV 2010, 'Contributions of lean mass and fat mass to bone mineral density: a study in postmenopausal women', BMC Musculoskeletal Disorders, vol. 11, no. 1.
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Background: The relative contribution of lean and fat to the determination of bone mineral density (BMD) in postmenopausal women is a contentious issue. The present study was undertaken to test the hypothesis that lean mass is a better determinant of BMD than fat mass. Methods: This cross-sectional study involved 210 postmenopausal women of Vietnamese background, aged between 50 and 85 years, who were randomly sampled from various districts in Ho Chi Minh City (Vietnam). Whole body scans, femoral neck, and lumbar spine BMD were measured by DXA (QDR 4500, Hologic Inc., Waltham, MA). Lean mass (LM) and fat mass (FM) were derived from the whole body scan. Furthermore, lean mass index (LMi) and fat mass index (FMi) were calculated as ratio of LM or FM to body height in metre squared (m2). Results: In multiple linear regression analysis, both LM and FM were independent and significant predictors of BMD at the spine and femoral neck. Age, lean mass and fat mass collectively explained 33% variance of lumbar spine and 38% variance of femoral neck BMD. Replacing LM and FM by LMi and LMi did not alter the result. In both analyses, the influence of LM or LMi was greater than FM and FMi. Simulation analysis suggested that a study with 1000 individuals has a 78% chance of finding the significant effects of both LM and FM, and a 22% chance of finding LM alone significant, and zero chance of finding the effect of fat mass alone. Conclusions: These data suggest that both lean mass and fat mass are important determinants of BMD. For a given body size -- measured either by lean mass or height --women with greater fat mass have greater BMD.
Hossain, MJ, Pota, HR & Kumble, C 2010, 'Decentralized robust static synchronous compensator control for wind farms to augment dynamic transfer capability', Journal of Renewable and Sustainable Energy, vol. 2, no. 2, pp. 022701-022701.
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Hossain, MJ, Pota, HR, Ugrinovskii, VA & Ramos, RA 2010, 'Simultaneous STATCOM and Pitch Angle Control for Improved LVRT Capability of Fixed-Speed Wind Turbines', IEEE Transactions on Sustainable Energy, vol. 1, no. 3, pp. 142-151.
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Hossain, MJ, Pota, HR, Ugrinovskii, VA & Ramos, RA 2010, 'Voltage mode stabilisation in power systems with dynamic loads', International Journal of Electrical Power & Energy Systems, vol. 32, no. 9, pp. 911-920.
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Hossein Alavi, A, Hossein Gandomi, A, Mollahassani, A, Akbar Heshmati, A & Rashed, A 2010, 'Modeling of maximum dry density and optimum moisture content of stabilized soil using artificial neural networks', Journal of Plant Nutrition and Soil Science, vol. 173, no. 3, pp. 368-379.
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Hosseini Hashemi, S, Es’haghi, M & Karimi, M 2010, 'Closed-form solution for free vibration of piezoelectric coupled annular plates using Levinson plate theory', Journal of Sound and Vibration, vol. 329, no. 9, pp. 1390-1408.
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Free vibration analysis of annular moderately thick plates integrated with piezoelectric layers is investigated in this study for different combinations of soft simply supported, hard simply supported and clamped boundary conditions at the inner and outer edges of the annular plate on the basis of the Levinson plate theory (LPT). The distribution of electric potential along the thickness direction in the piezoelectric layer is assumed as a sinusoidal function so that the Maxwell static electricity equation is approximately satisfied. The differential equations of motion are solved analytically for various boundary conditions of the plate. In this study the closed-form solution for characteristic equations, displacement components of the plate and electric potential are derived for the first time in the literature. To demonstrate the accuracy of the present solution, comparison studies is first carried out with the available data in the literature and then natural frequencies of the piezoelectric coupled annular plate are presented for different thickness-radius ratios, inner-outer radius ratios, thickness of piezoelectric, material of piezoelectric and boundary conditions. Present analytical model provides design reference for piezoelectric material application, such as sensors, actuators and ultrasonic motors. © 2009 Elsevier Ltd. All rights reserved.
Hosseini Hashemi, S, Es’haghi, M & Karimi, M 2010, 'Closed-form vibration analysis of thick annular functionally graded plates with integrated piezoelectric layers', International Journal of Mechanical Sciences, vol. 52, no. 3, pp. 410-428.
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This paper employs an analytical method to analyze vibration of piezoelectric coupled thick annular functionally graded plates (FGPs) subjected to different combinations of soft simply supported, hard simply supported and clamped boundary conditions at the inner and outer edges of the annular plate on the basis of the Reddy’s third-order shear deformation theory (TSDT). The properties of host plate are graded in the thickness direction according to a volume fraction power-law distribution. The distribution of electric potential along the thickness direction in the piezoelectric layer is assumed as a sinusoidal function so that the Maxwell static electricity equation is approximately satisfied. The differential equations of motion are solved analytically for various boundary conditions of the plate. In this study closed-form expressions for characteristic equations, displacement components of the plate and electric potential are derived for the first time in the literature. The present analysis is validated by comparing results with those in the literature and then natural frequencies of the piezoelectric coupled annular FG plate are presented in tabular and graphical forms for different thickness-radius ratios, inner-outer radius ratios, thickness of piezoelectric, material of piezoelectric, power index and boundary conditions. © 2009 Elsevier Ltd. All rights reserved.
Hosseini Hashemi, S, Karimi, M & Rokni Damavandi Taher, H 2010, 'Vibration analysis of rectangular Mindlin plates on elastic foundations and vertically in contact with stationary fluid by the Ritz method', Ocean Engineering, vol. 37, no. 2-3, pp. 174-185.
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In this study Free vibration analysis of vertical rectangular Mindlin plates resting on Pasternak elastic foundation and fully or partially in contact with fluid on their one side is investigated for different combinations of boundary conditions. The plate is assumed to be one of vertical rectangular walls of a container in contact with fluid. In order to analyze the interaction of the Mindlin plate with the elastic foundation and fluid system, three displacement components of the plate are expressed in the Ritz method by adopting a set of static Timoshenko beam functions satisfying geometric boundary conditions in a Cartesian co-ordinate system. The method of separation of variables and the method of Fourier series expansion is used to model fluid and to obtain the exact expression of the motion of fluid in the form of integral equations. The fluid domain is finite in depth and width but infinite in the length direction. To demonstrate the accuracy of the present solution, convergence study is first carried out and then a few comparison studies are carried out with the available data in the literature. Finally, natural frequencies of rectangular plates are presented in tabular and graphical forms for different fluid levels, foundation parameters, aspect ratios, thickness to width ratios and boundary conditions. © 2009 Elsevier Ltd. All rights reserved.
Hosseini, SSS & Gandomi, AH 2010, 'Discussion of 'Economic Load Dispatch A Comparative Study on Heuristic Optimization Techniques With an Improved Coordinated Aggregation-Based PSO'', IEEE Transactions on Power Systems, vol. 25, no. 1, pp. 590-590.
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Hosseini-Hashemi, S, Karimi, M & Hossein Rokni, DT 2010, 'Hydroelastic vibration and buckling of rectangular Mindlin plates on Pasternak foundations under linearly varying in-plane loads', Soil Dynamics and Earthquake Engineering, vol. 30, no. 12, pp. 1487-1499.
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Hydroelastic vibration and buckling analysis of horizontal rectangular plates resting on Pasternak foundation and subjected to linearly varying in-plane loads is investigated for different boundary conditions. Fluid is assumed to be inviscid and incompressible. To analyze the interaction of the Mindlin plate with the elastic foundation and fluid system, three displacement components of the plate are expressed in the Ritz method by adopting a set of static Timoshenko beam functions satisfying geometric boundary conditions. Convergence study is first carried out to confirm the stability of the present method. Then, a few comparisons are made for limited cases between present results and the available data in the literature. Finally, parametric study is conducted to highlight the effects of loading factors, fluid levels, foundation stiffness parameters, aspect ratios, thickness to width ratios and different boundary conditions on the critical buckling loads and wet natural frequencies of rectangular plates. © 2010 Elsevier Ltd.
Hsieh, M-H & Gall, FL 2010, 'NP-hardness of decoding quantum error-correction codes', Physical Review A, vol. 83, no. 5, pp. 052331-5.
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Though the theory of quantum error correction is intimately related to the
classical coding theory, in particular, one can construct quantum error
correction codes (QECCs) from classical codes with the dual containing
property, this does not necessarily imply that the computational complexity of
decoding QECCs is the same as their classical counterparts. Instead, decoding
QECCs can be very much different from decoding classical codes due to the
degeneracy property. Intuitively, one expect degeneracy would simplify the
decoding since two different errors might not and need not be distinguished in
order to correct them. However, we show that general quantum decoding problem
is NP-hard regardless of the quantum codes being degenerate or non-degenerate.
This finding implies that no considerably fast decoding algorithm exists for
the general quantum decoding problems, and suggests the existence of a quantum
cryptosystem based on the hardness of decoding QECCs.
Hu, HS, Wang, J, Jiang, XZ, Li, YC & Li, ZC 2010, 'Design and controllability analysis of a gun magnetorheological recoil damper', Zhendong yu Chongji/Journal of Vibration and Shock, vol. 29, no. 2, pp. 184-188.
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According to gun magnetorheological (MR) recoil damper's characteristics, aiming at the recoil part of a gun system under high impact and high-speed environment, the recoil resistance force's effect on the quiescence and firing stability of the gun was studied. The controllability of a magnetorheological damper to the gun recoil part's movement was also studied. A new gun magnetorheological recoil damper was designed and developed. And a suit of real-time measuring and controlling simulation experimental platform including hardware and software for dynamic response of a gun MR recoil damper under impact load was developed. Considering the dynamic behavior of the MR damper under impact load, an inertia factor was introduced into the dynamic model of the recoil part of the gun system. A shock test was done to measure the designed long-stroke MR damper's dynamic performance under impact load. To evaluate the control effect of the MR damper on the gun recoil movement during recoiling, a hardware-in-loop simulation and a test were performed. The testing results showed that the recoil's resistance and stroke of the designed gun MR recoil damper under impact load can be controlled by changing the applied current. The results lay a foundation for the integrated design and engineering application of the gun recoil force and stroke control.
Hu, J, Chang, Z & Hu, G 2010, 'An approximate method for controlling solid elastic waves by transformation media', Phys. Rev. B, vol. 84, no. 20, p. 201101.
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By idealizing a general mapping as a series of local affine ones, we derive
approximately transformed material parameters necessary to control solid
elastic waves within classical elasticity theory. The transformed elastic
moduli are symmetric, and can be used with Navier's equation to manipulate
elastic waves. It is shown numerically that the method can provide a powerful
tool to control elastic waves in solids in case of high frequency or small
material gradient. Potential applications can be anticipated in nondestructive
testing, structure impact protection, petroleum exploration and seismology.
Huang, X, Guo, YJ & Bunton, JD 2010, 'A hybrid adaptive antenna array', IEEE Transactions on Wireless Communications, vol. 9, no. 5, pp. 1770-1779.
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Owing to the excessive demand on signal processing and space constraint, a full digital implementation of a large adaptive antenna array at millimeter wave frequencies is very challenging. Targeted at long range high data rate point-topoint link in the 70/80 GHz bands, a novel hybrid adaptive antenna array which consists of analogue subarrays followed by a digital beamformer is presented in this paper to overcome the digital implementation difficulty. Two subarray configurations, the interleaved subarray and the side-by-side subarray, are proposed, and two Doppler resilient adaptive angle-of-arrival estimation and beamforming algorithms, the differential beam tracking (DBT) and the differential beam search (DBS), are developed. Simulation results on the DBT and DBS performance are provided using a 64 element hybrid planar array of four 4 by 4 element subarrays with the two subarray configurations, respectively. Recursive mean square error (MSE) bounds of the developed algorithms are also analyzed and compared with simulated MSEs. © 2006 IEEE.
Huang, X, Wen, B & Ding, F 2010, 'Ship detection and tracking using multi-frequency HFSWR', IEICE Electronics Express, vol. 7, no. 6, pp. 410-415.
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Huang, Y, Hu, Q & Zhu, J 2010, 'Magneto-thermal analysis of a high-speed claw pole motor considering rotational core loss', Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, vol. 25, no. 5, pp. 54-60.
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This paper presents a magneto-thermal model of a high-speed claw pole motor. Core loss is much greater than other losses and is the main source of heat due to the high operating frequency. Therefore it is of crucial importance to be able to calculate the core loss accurately. Three-dimensional finite element analysis is used for core loss calculation and temperature distribution because flux path in claw pole motor is pure three-dimension. The total core loss is computed by separating the alternating and rotational hysteresis, eddy current and anomalous losses in each element. The element's core loss is coupled into elements in thermal analysis by keeping the same mesh structure between magnetic and thermal analysis. Other losses such as air friction loss, rotor loss are included in the model due to high speed. This model is applied to a 2 kW, 20 kr/min three stack claw pole motor with soft magnetic composite core, and the results are compared and discussed finally.
Huang, Z, Gallucci, J, Chen, X, Yisgedu, T, Lingam, HK, Shore, SG & Zhao, J-C 2010, 'Li2B12H12·7NH3: a new ammine complex for ammonia storage or indirect hydrogen storage', Journal of Materials Chemistry, vol. 20, no. 14, pp. 2743-2743.
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Huang, Z, King, G, Chen, X, Hoy, J, Yisgedu, T, Lingam, HK, Shore, SG, Woodward, PM & Zhao, J-C 2010, 'A Simple and Efficient Way to Synthesize Unsolvated Sodium Octahydrotriborate', Inorganic Chemistry, vol. 49, no. 18, pp. 8185-8187.
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Hung Gia Hoang, Hoang Duong Tuan & Nguyen, TQ 2010, 'Optimized Analog Flat Filter Design', IEEE Transactions on Signal Processing, vol. 58, no. 2, pp. 901-906.
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This paper proposes a systematic approach for the optimized design of analog filters, which includes all well-known classical analog filters as a special case. All specifications including the conventional ones and also filter flatness degrees are explic
Hussain, OK, Dillon, T, Chang, E & Hussain, F 2010, 'Transactional risk-based decision making system in e-business interactions', Computer Systems Science and Engineering, vol. 25, no. 1, pp. 15-28.
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The credit crunch and economic crisis have demonstrated the need to properly understand, characterize and assimilate risk in business activities. Failure to do this has resulted in serious consequences to the users involved. So the analysis and management of risk is one of the important pre-requisites to ensure a successful outcome in a business activity in any domain. In this paper we propose an approach by which an interaction initiating user in the domain of e-business ascertains beforehand the level of transactional risk in the successful completion of its business activity and utilizes it to determine on an interaction. The proposed model considers the different sub-categories and characteristics of transactional risk and ascertains in numeric and semantic terms the different levels and severities of its occurrence. It then utilizes the determined analysis of transactional risk to recommend on an informed interaction-based decision to the interaction initiating user. ©2010 CRL Publishing Ltd.
Huyang, G, Canning, J, Aslund, ML, Stocks, D, Khoury, T & Crossley, MJ 2010, 'Evaluation of optical fiber microcell reactor for use in remote acid sensing', OPTICS LETTERS, vol. 35, no. 6, pp. 817-819.
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Indraratna, B 2010, 'Recent advances in the application of vertical drains and vacuum preloading in soft soil stabilisation', Australian Geomechanics Journal, vol. 45, no. 2, pp. 1-44.
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Much of the world's essential infrastructure is built along congested coastal belts that are composed of highly compressible and weak soils up to significant depths. Soft alluvial and marine clay deposits have very low bearing capacity and excessive settlement characteristics, with obvious design and maintenance implications on tall structures and large commercial buildings, as well as port and transport infrastructure. Stabilising these soft soils before commencing construction is essential for both long term and short term stability. Pre-construction consolidation of soft soils through the application of a surcharge load alone often takes too long, apart from which, the load required to achieve more than 90% consolidation of these mostly low lying, permeable, and very thick clay deposits can be excessively high over a prolonged period. A system of vertical drains combined with vacuum pressure and surcharge preloading has become an attractive ground improvement alternative in terms of both cost and effectiveness. This technique accelerates consolidation by promoting rapid radial flow which decreases the excess pore-pressure while increasing the effective stress. Over the past 15 years, the Author and his co-workers have developed numerous experimental, analytical and numerical approaches that simulate the mechanics of prefabricated vertical drains (PVDs) and vacuum preloading, including two-dimensional and three-dimensional analyses, and more comprehensive design methods. These recent techniques have been applied to various real life projects in Australia and Southeast Asia. Some of the new design concepts include the role of overlapping smear zones due to P VD-mandrel penetration, pore pressure prediction based on the elliptical cavity expansion theory, and the rise and fall of pore pressure via PVD under cyclic loads. These recent advances enable greater accuracy in the prediction of excess pore water pressure, and lateral and vertical displacement of the stab...
Indraratna, B, Geng, X & Rujikiatkamjorn, C 2010, 'Review of mehods of analysis for the use of vacuum preloading and vertical drains for soft clay improvement', Geomechanics and Geoengineering, vol. 5, no. 4, pp. 223-236.
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The use of vertical drains with vacuum preloading for soft soil improvement has become a booming interest in recent years. In this paper, theoretical and practical developments of the utilization of vertical drain with vacuum preloading are currently reviewed. Geotechnical aspects of factors affecting the performance of vacuum consolidation and conversion procedure for multi-drain analysis are discussed based on the current state of the art. The salient aspects of selected case histories on soft clays and land reclamations are elucidated. © 2010 Taylor &Francis.
Indraratna, B, Ni, J & Rujikiatkamjorn, C 2010, 'Investigation on effectiveness of a prefabricated vertical drain during cyclic loading', IOP Conference Series: Materials Science and Engineering, vol. 10, pp. 012091-012091.
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Indraratna, B, Nimbalkar, S, Christie, D, Rujikiatkamjorn, C & Vinod, J 2010, 'Field Assessment of the Performance of a Ballasted Rail Track with and without Geosynthetics', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 7, pp. 907-917.
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INDRARATNA, B, OLIVEIRA, DAF & BROWN, ET 2010, 'A shear-displacement criterion for soil-infilled rock discontinuities', Géotechnique, vol. 60, no. 8, pp. 623-633.
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An infilled rock joint is likely to be the weakest plane in a rock mass. The most pronounced effect of the presence of infill material is the reduction in friction of the discontinuity boundaries (i.e. rock to rock contact of the joint walls). The thicker the infill, the smaller the shear strength of the rock joint. Once the infill reaches a critical thickness, the joint walls (rock) play no significant role in the overall shear strength. Several models have been proposed to predict the peak shear strength of infilled joints under both constant normal load and constant normal stiffness boundary conditions, taking into account the ratio of infill thickness (t) to the height of the joint wall asperity (a), that is the t/a ratio. Models based on the constant normal stiffness condition provide a much more accurate representation of the infilled joint behaviour in the field, but only a limited number of studies have focused on the more realistic constant normal stiffness stress–strain behaviour. This paper presents a critical review of some of the earlier studies and the most recent advancement of a shear-strength model developed at University of Wollongong, Australia, supplemented with laboratory data for model validation. The effect of different factors on the shear behaviour such as the t/a ratio, infill friction angle, joint wall roughness, joint stiffness and type of infill are presented.
Indraratna, B, Oliveira, DAF, Brown, ET & de Assis, AP 2010, 'Corrigendum to “Effect of soil-infilled joints on the stability of rock wedges formed in a tunnel roof”', International Journal of Rock Mechanics and Mining Sciences, vol. 47, no. 7, pp. 1229-1229.
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Indraratna, B, Oliveira, DAF, Brown, ET & de Assis, AP 2010, 'Effect of soil–infilled joints on the stability of rock wedges formed in a tunnel roof', International Journal of Rock Mechanics and Mining Sciences, vol. 47, no. 5, pp. 739-751.
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Indraratna, B, Regmi, G, Nghiem, LD & Golab, A 2010, 'Performance of a PRB for the Remediation of Acidic Groundwater in Acid Sulfate Soil Terrain', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 7, pp. 897-906.
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Indraratna, B, Rujikiatkamjorn, C, Ewers, B & Adams, M 2010, 'Class A Prediction of the Behavior of Soft Estuarine Soil Foundation Stabilized by Short Vertical Drains beneath a Rail Track', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 5, pp. 686-696.
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Indraratna, B, Rujikiatkamjorn, C, Kelly, R & Buys, H 2010, 'Sustainable soil improvement via vacuum preloading', Proceedings of the Institution of Civil Engineers - Ground Improvement, vol. 163, no. 1, pp. 31-42.
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The application of prefabricated vertical drains combined with vacuum and surcharge preloading is considered to be one of the most environmentally friendly ground improvement techniques. The natural atmospheric pressure is used to generate suction via a vacuum pump. In comparison with other ground improvement methods such as deep piling and deep mixing, this method will not only save a substantial cost in road and rail embankment maintenance and construction but will also enhance the speed of construction of coastal highways and rail tracks and their capacity to carry a greater traffic load. Moreover, as drains with vacuum pressure do not involve chemicals, the soil and groundwater chemistry will not change, unlike cement and lime treatment. Vacuum preloading will also reduce the impact on the environment by minimising the greenhouse gas emissions and the need for quarrying natural sand and gravel. The performances of three full-scale test embankments constructed in Thailand, China and Australia are discussed collectively, demonstrating the advantages and environmental benefits of vacuum consolidation in relation to a standard surcharge-only system.
Indraratna, B, Thakur, PK & Vinod, JS 2010, 'Experimental and Numerical Study of Railway Ballast Behavior under Cyclic Loading', International Journal of Geomechanics, vol. 10, no. 4, pp. 136-144.
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This paper presents the results of the influence of frequency on the permanent deformation and degradation behavior of ballast during cyclic loading. The behavior of ballast under numerous cycles was investigated through a series of large-scale cyclic triaxial tests. The tests were conducted at frequencies ranging from 10-40 Hz, which is equivalent to a train traveling from 73 km/h to 291 km/h over standard gauge tracks in Australia. The results showed that permanent deformation and degradation of ballast increased with the frequency of loading and number of cycles. Much of breakage occurs during the initial cycle; however, there exists a frequency zone of 20 Hz≤f≤30 Hz where cyclic densification takes place without much additional breakage. An empirical relationship among axial strain, frequency and number of cycles has been proposed based on the experimental data. In addition, discrete-element method (DEM) simulations were carried out using PFC2D on an assembly of irregular shaped particles. A novel approach was used to model a two-dimensional (2D) projection of real ballast particles. Clusters of bonded circular particles were used to model a 2D projection of angular ballast particles. Degradation of the bonds within a cluster was considered to represent particle breakage. The results of DEM simulations captured the ballast behavior under cyclic loading in accordance with the experimental observations. Moreover, the evolution of micromechanical parameters such as a distribution of the contact force and bond force developed during cyclic loading was presented to explain the mechanism of particle breakage. It has been revealed that particle breakage is mainly due to the tensile stress developed during cyclic loading and is located mainly in the direction of the movement of ballast particles. © 2010 ASCE.
Jahirul, MI, Masjuki, HH, Saidur, R, Kalam, MA, Jayed, MH & Wazed, MA 2010, 'Comparative engine performance and emission analysis of CNG and gasoline in a retrofitted car engine', Applied Thermal Engineering, vol. 30, no. 14-15, pp. 2219-2226.
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Jain, R, Ji, Z, Upadhyay, S & Watrous, J 2010, 'QIP = PSPACE', Communications of the ACM, vol. 53, no. 12, pp. 102-109.
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The interactive proof system model of computation has been studied extensively in computational complexity theory and theoretical cryptography for more than 25 years, and has driven the development of interesting new techniques and insights in those fields. This work considers the quantum interactive proof system model, which is the classical model's natural quantum computational analog. An exact characterization of the expressive power of quantum interactive proof systems is obtained: the collection of computational problems having quantum interactive proof systems consists precisely of those problems solvable with an ordinary classical computer using at most a polynomial amount of memory (or QIP = PSPACE in complexity-theoretic terminology). One striking implication of this characterization is that it implies quantum computing provides no increase in computational power whatsoever over classical computing in the context of interactive proof systems.
Jain, V, Bhandarkar, UV, Yadav, S, Joshi, SC, Ghodke, AD, Lad, M & Hannurkar, PR 2010, 'Estimation of higher order modes of INDUS-2 RF cavity using combined electromagnetic–thermal–structural simulations', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 612, no. 2, pp. 225-240.
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Jap, BT, Lal, S & Fischer, P 2010, 'Inter-hemispheric electroencephalography coherence analysis: Assessing brain activity during monotonous driving', International Journal of Psychophysiology, vol. 76, no. 3, pp. 169-173.
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The current study investigated the effect of monotonous driving on inter-hemispheric electroencephalography (EEG) coherence. Twenty-four non-professional drivers were recruited to perform a fatigue instigating monotonous driving task while 30 channels of EEG were simultaneously recorded. The EEG recordings were then divided into 5 equal sections over the entire driving period for analysis. Inter-hemispheric coherence was computed from 5 homologous EEG electrode pairs (FP1FP2, C3C4, T7T8, P7P8, and O1O2) for delta, theta, alpha and beta frequency bands. Results showed that frontal and occipital inter-hemispheric coherence values were significantly higher than central, parietal, and temporal sites for all four frequency bands (p < 0.0001). In the alpha frequency band, significant difference was found between earlier and later driving sections (p = 0.02). The coherence values in all EEG frequency bands were slightly increased at the end of the driving session, except for FP1FP2 electrode pair, which showed no significant change in coherence in the beta frequency band at the end of the driving session.
Jayaram, K & Joshi, SS 2010, 'Development of a flexure-based, force-sensing microgripper for micro-object manipulation', Journal of Micromechanics and Microengineering, vol. 20, no. 1, pp. 015001-015001.
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Jegatheesan, V, Shu, L & Ngo, HH 2010, 'Special Issue on the Challenges in Environmental Science and Engineering, CESE-2009 14–17 July, 2009 – Jupiters Hotel, Townsville, Queensland, Australia', Bioresource Technology, vol. 101, no. 5, pp. 1415-1415.
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Jewart, CM, Wang, Q, Canning, J, Grobnic, D, Mihailov, SJ & Chen, KP 2010, 'Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing', OPTICS LETTERS, vol. 35, no. 9, pp. 1443-1445.
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Jeyakumar, P, Loganathan, P, Sivakumaran, S, Anderson, CWN & McLaren, RG 2010, 'Bioavailability of copper and zinc to poplar and microorganisms in a biosolids-amended soil', AUSTRALIAN JOURNAL OF SOIL RESEARCH, vol. 48, no. 5, pp. 459-469.
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The effects of high concentrations of copper (Cu) and zinc (Zn) in a soil treated with biosolids previously spiked with these metals on poplar (Populus deltoidesyunnanensis) were investigated in a pot trial. The total soil metal concentrations in the treatments were 12, 46, 137, and 226mg Cu/kg and 25, 141, 433, and 686mg Zn/kg. Copper accumulation was lower in poplar leaves than Zn and the maximum bioconcentration factor was 0.8 for Cu and 10 for Zn. Copper was not found to be toxic to plants at any level of application or to mycorrhiza up to 137mg/kg, but it was found to be toxic to soil microorganisms at all levels of Cu addition. Copper application increased mycorrhiza colonisation up to 137mg Cu/kg and root dry matter at 226mg Cu/kg, but had no effect on leaf dry matter. Increasing Zn rate decreased all plant and soil parameters. Lower percentages of Cu in the soil exchangeable fraction, and a lower Cu2+ concentrations in soil solution relative to Zn indicated lower bioavailability of Cu. Dehydrogenase activity was reduced by 50% at total solution-phase Cu and Zn concentrations of 0.1 and 27mg/L, respectively, and solid-phase exchangeable Cu and Zn concentrations of 5 and 169mg/kg, respectively. © 2010 CSIRO.
Ji, JC & Zhang, N 2010, 'Suppression of the primary resonance vibrations of a forced nonlinear system using a dynamic vibration absorber', JOURNAL OF SOUND AND VIBRATION, vol. 329, no. 11, pp. 2044-2056.
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In a single degree-of-freedom weakly nonlinear oscillator subjected to periodic external excitation, a small-amplitude excitation may produce a relatively large-amplitude response under primary resonance conditions. Jump and hysteresis phenomena that result from saddle-node bifurcations may occur in the steady-state response of the forced nonlinear oscillator. A simple massâspringâdamper vibration absorber is thus employed to suppress the nonlinear vibrations of the forced nonlinear oscillator for the primary resonance conditions. The values of the spring stiffness and mass of the vibration absorber are significantly lower than their counterpart of the forced nonlinear oscillator. Vibrational energy of the forced nonlinear oscillator is transferred to the attached light mass through linked spring and damper. As a result, the nonlinear vibrations of the forced oscillator are greatly reduced and the vibrations of the absorber are significant. The method of multiple scales is used to obtain the averaged equations that determine the amplitude and phases of the first-order approximate solutions to primary resonance vibrations of the forced nonlinear oscillator. Illustrative examples are given to show the effectiveness of the dynamic vibration absorber for suppressing primary resonance vibrations. The effects of the linked spring and damper and the attached mass on the reduction of nonlinear vibrations are studied with the help of frequency response curves, the attenuation ratio of response amplitude and the desensitisation ratio of the critical amplitude of excitation.
Ji, Z, Chen, J, Wei, Z & Ying, M 2010, 'THE LU-LC CONJECTURE IS FALSE', QUANTUM INFORMATION & COMPUTATION, vol. 10, no. 1-2, pp. 97-108.
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The LU-LC conjecture is an important open problem concerning the structure of entanglement of states described in the stabilizer formalism. It states that two local unitary equivalent stabilizer states are also local Clifford equivalent. If this conjecture were true, the local equivalence of stabilizer states would be extremely easy to characterize. Unfortunately, however, based on the recent progress made by Gross and Van den Nest, we find that the conjecture is false.
JIA, B-Y, YU, Z-Y, LIU, Y-M & TIAN, H-D 2010, 'Calculation of valence band structures of InAs/GaAs quantum ring and quantum dot: using numerical Fourier transform method', The Journal of China Universities of Posts and Telecommunications, vol. 17, no. 1, pp. 106-110.
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This article puts forward a new method in calculating the band structures of low-dimensional semiconductor structures. In this study, the valence band structures of InAs/GaAs quantum ring and lens-shaped quantum dot are calculated with four-band model, in the framework of effective-mass envelope function theory. To determine the Hamiltonian matrix elements, this article develops the numerical Fourier transform method instead of the widely used analytical integral method. The valence band mixing is considered. The hole energy levels change dramatically with the geometrical parameters of the quantum ring and quantum dot. It is demonstrated that numerical Fourier transform method can be adopted in low-dimensional structures with any shape. The results of Fourier transform method are consistent with the ones of analytical integral in literature; and they are helpful for studying and fabricating optoelectronic devices. © 2010 The Journal of China Universities of Posts and Telecommunications.
Jiang, ZY, Tang, J, Sun, W, Tieu, AK & Wei, D 2010, 'Analysis of tribological feature of the oxide scale in hot strip rolling', Tribology International, vol. 43, no. 8, pp. 1339-1345.
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Jin, P & Ziolkowski, RW 2010, 'Metamaterial-Inspired, Electrically Small Huygens Sources', IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 501-505.
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Jin, P & Ziolkowski, RW 2010, 'Multiband extensions of the electrically small, near-field resonant parasitic Z antenna', IET Microwaves, Antennas & Propagation, vol. 4, no. 8, pp. 1016-1016.
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Jin, Z, Joshi, SC, Nesamani, GJJ, Chan, PK, Ying, TM & Goh, CH 2010, 'Data Analysis and Correlation for Thermal Balance Test on a Micro-Satellite Model', Heat Transfer Engineering, vol. 31, no. 3, pp. 222-233.
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Jing, D, Alakel, N, Bornhäuser, M, Ehninger, G & Ordemann, R 2010, 'SDF-1/CXCR4 blockade to mobilize hematopoietic progenitor cells from the placenta', Bone Marrow Transplantation, vol. 45, no. 11, pp. 1661-1662.
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Jing, D, Fonseca, AV, Alakel, N, Fierro, FA, Muller, K, Bornhauser, M, Ehninger, G, Corbeil, D & Ordemann, R 2010, 'Hematopoietic stem cells in co-culture with mesenchymal stromal cells - modeling the niche compartments in vitro', Haematologica, vol. 95, no. 4, pp. 542-550.
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Jing, D, Oelschlaegel, U, Ordemann, R, Hölig, K, Ehninger, G, Reichmann, H, Ziemssen, T & Bornhäuser, M 2010, 'CD49d blockade by natalizumab in patients with multiple sclerosis affects steady-state hematopoiesis and mobilizes progenitors with a distinct phenotype and function', Bone Marrow Transplantation, vol. 45, no. 10, pp. 1489-1496.
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Johir, MAH, Vigneswaran, S & Kandasamy, J 2010, 'Hybrid filtration method for pre-treatment of stormwater', Water Science and Technology, vol. 62, no. 12, pp. 2937-2943.
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In this study the hybrid filtration process (combining fibre filter with deep bed dual media filtration) was investigated as pre-treatment to stormwater. This process was investigated in-terms of reduction in turbidity, dissolved organic carbon (DOC), colour, headloss development across the filters, suspended solids removal, organic matter removal, nutrients and heavy matter (such as iron, copper, lead, zinc) removal efficiency. A comparison was made between the hybrid filter with single media (sand) deep bed filter and fibre filter. It was found that the hybrid filtration system successfully removed turbidity (98%), colour (99%), suspended solids (99%), and DOC (55%). The removal efficiency of heavy metal was relatively low as the concentration of heavy metals present in stormwater was low. The removal efficiency of nitrate, nitrite and phosphorous (as orthophosphate) was 27, 35 and 72% respectively. Hybrid filtration processes showed a better reduction of Modified Fouling Index (MFI) value (from 15.500 s/l2 to 9 s/l2) compared with single media sand, anthracite and fibre filter which were 35 s/l2, 13 s/l2and 14 s/l2 respectively when operated at FeCl3 dose of 15 mg/l.
Johnston, M, Geoffroy, M-C, Sobala, A, Hay, R & Hutvagner, G 2010, 'HSP90 Protein Stabilizes Unloaded Argonaute Complexes and Microscopic P-bodies in Human Cells', Molecular Biology of the Cell, vol. 21, no. 9, pp. 1462-1469.
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Key components of the miRNA-mediated gene regulation pathway are localized in cytoplasmic processing bodies (P-bodies). Mounting evidence suggests that the presence of microscopic P-bodies are not always required for miRNA-mediated gene regulation. Here we have shown that geldanamycin, a well-characterized HSP90 inhibitor, abolishes P-bodies and significantly reduces Argonaute and GW182 protein levels but does not affect the miRNA level and the efficiency of miRNA-mediated gene repression; however, it significantly impairs siRNA loading and the efficacy of exogenous siRNA. Our data suggests that HSP90 protein chaperones Argonautes before binding RNA and may facilitate efficient loading of small RNA.
Joshi 2010, 'Ultrastructural basis of enhanced antitumor cytotoxicity of cord blood-derived CTLs: A comparative analysis with peripheral blood and bone marrow', International Journal of Oncology, vol. 37, no. 3.
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Joshi, S, Maikap, GC, Titirmare, S, Chaudhari, A & Gurjar, MK 2010, 'An Improved Synthesis of Etravirine', Organic Process Research & Development, vol. 14, no. 3, pp. 657-660.
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Joshi, SD, Ashwini, J, Vagdevi, HM, Vaidya, VP & Gadaginamath, GS 2010, 'Synthesis and Antimicrobial Evaluation of Some New Pyrrolylnaphtho[2,1-b] furan Derivatives', INDIAN JOURNAL OF PHARMACEUTICAL EDUCATION AND RESEARCH, vol. 44, no. 2, pp. 148-155.
Joshi, SD, Joshi, A, Vagdevi, HM, Vaidya, VP & Gadaginamath, GS 2010, 'SYNTHESIS OF SOME NEW QUINOLINYLPYRAZOLES AS POTENTIAL ANTIBACTERIAL AND ANTITUBERCULAR AGENTS', INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY, vol. 19, no. 3, pp. 221-224.
Jun Zhang, Lu, DD-C & Ting Sun 2010, 'Flyback-Based Single-Stage Power-Factor-Correction Scheme With Time-Multiplexing Control', IEEE Transactions on Industrial Electronics, vol. 57, no. 3, pp. 1041-1049.
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Juszczyszyn, K, Kazienko, P & Musiał, K 2010, 'Personalized Ontology-Based Recommender Systems for Multimedia Objects', Studies in Computational Intelligence, vol. 289, pp. 275-292.
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A framework for recommendation of multimedia objects based on processing of individual ontologies is proposed in the chapter. The recommendation process takes into account similarities calculated both between objects' and users' ontologies, which reflect the social and semantic features existing in the system. The ontologies, which are close to the current context, provide a list of suggestions presented to the user. Each user in the system possesses its own Personal Agent that performs all necessary online tasks. Personal Agents co-operate each other and enrich lists of possible recommendations. The system was developed for the use inthe Flickr multimedia sharing system. © 2010 Springer-Verlag Berlin Heidelberg.
Kale, A, Naphade, N, Sapkale, S, Kamaraju, M, Pillai, A, Joshi, S & Mahadik, S 2010, 'Reduced folic acid, vitamin B12 and docosahexaenoic acid and increased homocysteine and cortisol in never-medicated schizophrenia patients: Implications for altered one-carbon metabolism', Psychiatry Research, vol. 175, no. 1-2, pp. 47-53.
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Kejalakshmy, N, Agrawal, A, Aden, Y, Leung, DMH, Rahman, BMA & Grattan, KTV 2010, 'Characterization of silicon nanowire by use of full-vectorial finite element method', Applied Optics, vol. 49, no. 16, pp. 3173-3173.
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Ken-Li Lin, Chin-Teng Lin & Pal, NR 2010, 'Incremental Mountain Clustering Method to Find Building Blocks for Constructing Structures of Proteins', IEEE Transactions on NanoBioscience, vol. 9, no. 4, pp. 278-288.
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Kennard, R & Leaney, J 2010, 'Towards a general purpose architecture for UI generation', JOURNAL OF SYSTEMS AND SOFTWARE, vol. 83, no. 10, pp. 1896-1906.
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Many software projects spend a significant proportion of their time developing the User Interface (UI), therefore any degree of automation in this area has clear benefits. Such automation is difficult due principally to the diversity of architectures, platforms and development environments. Attempts to automate UI generation to date have contained restrictions which did not accommodate this diversity, leading to a lack of wide industry adoption or standardisation. The authors set out to understand and address these restrictions. We studied the issues of UI generation (especially duplication) in practice, using action research cycles guided by interviews, adoption studies and close collaboration with industry practitioners. In addressing the issues raised in our investigation, we identified five key characteristics any UI generation technique would need before it should expect wide adoption or standardisation. These can be summarised as: inspecting existing, heterogeneous back-end architectures; appreciating different practices in applying inspection results; recognising multiple, and mixtures of, UI widget libraries; supporting multiple, and mixtures of, UI adornments; applying multiple, and mixtures of, UI layouts. Many of these characteristics seem ignored by current approaches. In addition, we discovered an emergent feature of these characteristics that opens the possibility of a previously unattempted goal â namely, retrofitting UI generation to an existing application.
Keshavarzi, A, Valizadeh, M & Ball, J 2010, 'Experimental Study of the Effects of Submerged Dikes on the Energy and Momentum Coefficients in Compound Channel', Engineering, vol. 02, no. 11, pp. 855-862.
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This paper aims to understand the flow structure around submerged dike in the main channel and flood plain of a compound cross section. The study undertaken to develop this understanding was carried out in a laboratory flume using a submerged vane installed at a 90 degree angle to the bank. In order to study the flow structures, the flow velocity was measured using a three-dimensional Acoustic Doppler Velocity meter (micro-ADV) with data collection rate of 50 Hz. These flow velocity measurements were taken at 500 points on a regular grid. As the tests were undertaken with turbulent flow, these conditions were subcritical. Furthermore, all the tests were undertaken using a fixed bed. The results obtained showed that the momentum transfer and the kinetic energy reduced in two directions. Also the energy and momentum coefficients decreased significantly with the installation of the submerged vane inside the main channel. Finally, streamlines were found to deviate from the side walls of channel into the main channel.
Ki, S-K & Lu, DD-C 2010, 'Implementation of an Efficient Transformerless Single-Stage Single-Switch AC/DC Converter', IEEE Transactions on Industrial Electronics, vol. 57, no. 12, pp. 4095-4105.
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Kiani, GI, Ford, KL, Olsson, LG, Esselle, KP & Panagamuwa, CJ 2010, 'Switchable Frequency Selective Surface for Reconfigurable Electromagnetic Architecture of Buildings', IEEE Transactions on Antennas and Propagation, vol. 58, no. 2, pp. 581-584.
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Kiani, GI, Olsson, LG, Karlsson, A & Esselle, KP 2010, 'Transmission of infrared and visible wavelengths through energy-saving glass due to etching of frequency-selective surfaces', IET Microwaves, Antennas & Propagation, vol. 4, no. 7, pp. 955-955.
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Kilari, AS, Mehendale, SS, Dangat, KD, Yadav, HR, Gupta, A, Taralekar, VS & Joshi, SR 2010, 'Long chain polyunsaturated fatty acids in mothers of preterm babies', Journal of Perinatal Medicine, vol. 38, no. 6.
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Kim, DH, Shon, HK, Phuntsho, S & Cho, J 2010, 'Determination of the Apparent Charge of Natural Organic Matter', SEPARATION SCIENCE AND TECHNOLOGY, vol. 45, no. 3, pp. 339-345.
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The charge of natural organic matter (NOM) is an important parameter for understanding the membrane fouling and NOM removal mechanism with charged membrane. However, there is a lack of technology to make direct measurement of the NOM charge. In this study, we report a novel concept of measuring an apparent charge of the NOM using selectivity coefficient. The apparent charges of three different NOM containing different structures were evaluated to validate this proposed method. The apparent charge of the NOM exhibited a good correlation with specific UV absorbance of the NOM. This apparent charge is therefore a useful indicator for predicting the membrane fouling and NOM removal in membrane filtration technology.
Kim, JB, Park, HJ, Shon, HK, Cho, DL, Kim, G-J, Choi, SW & Kim, J-H 2010, 'Preparation of TiO<SUB>2</SUB> Nanoparticle from Ti-Salt Flocculated Sludge with Dye Wastewater', Journal of Nanoscience and Nanotechnology, vol. 10, no. 5, pp. 3260-3265.
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Dye wastewater flocculation using TiCl4 and FeSO4 coagulants was studied for organic removal and precipitation efficiency. Moreover, TiCl4 was assessed in a pilot-scale flocculation process to investigate organic removal and solution pH effect. A large amount of TiO2 was produced from sludge of Ti-salt flocculation in dye wastewater. This flocculation process simultaneously reduces a large amount of sludge produced from wastewater. The TiO2 nanoparticle was characterized in terms of physical and chemical properties. Results showed that 77.6% of organic matter was removed from dye wastewater when using FeSO4 as coagulant, while TiCl4 degraded 75.9% of organic matter. On the other hand, floc precipitation efficiency was better for TiCl4 if compared with FeSO4. The optimum concentration of TiCl4 for pilot-scale flocculation was found to be equal to 2.1 g/L. DWT (Dye wastewater titania) size was 15-20 nm, mainly doped with carbon atoms and exhibited a dominant anatase structure. DWT was similar to P-25 in decomposing acetaldehyde under UV-irradiation and complete photocatalytic degradation was achieved after 140 min.
Kim, JB, Seol, D-H, Shon, HK, Kim, G-J & Kim, J-H 2010, 'Preparation and Characterization of Titania Nanoparticles from Titanium Tetrachloride and Titanium Sulfate Flocculation of Dye Wastewater', Journal of the Japan Petroleum Institute, vol. 53, no. 3, pp. 167-172.
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Titanium dioxide (TiO2) is the most widely used metal oxide for environmental applications, cosmetics, paints, electronic paper and solar cells, so demand is increasing rapidly. TiO2 can be produced from Ti-flocculated sludge, which is superior to the co
Kim, SH, Shon, HK & Ngo, HH 2010, 'Adsorption characteristics of antibiotics trimethoprim on powdered and granular activated carbon', JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 16, no. 3, pp. 344-349.
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The adsorption characteristics of trimethoprim (TMP) onto powdered activated carbon (PAC) and granular activated carbon (GAC) were studied. The adsorption isotherms could be plotted using the Langmuir, Freundlich and Toth models with a reasonable degree
Knox, KJ, Burnham, DR, McCann, LI, Murphy, SL, McGloin, D & Reid, JP 2010, 'Observation of bistability of trapping position in aerosol optical tweezers', Journal of the Optical Society of America B, vol. 27, no. 3, pp. 582-582.
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Koppi, T, Sheard, J, Naghdy, F, Edwards, SL & Brookes, W 2010, 'Towards a gender inclusive information and communications technology curriculum: a perspective from graduates in the workforce', Computer Science Education, vol. 20, no. 4, pp. 265-282.
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An online survey was conducted of recent information and communications technology (ICT) graduates from 21 Australian universities. A range of abilities including personal/interpersonal, cognitive, business and technical were examined in relation to importance in the workplace and university preparation of those abilities. In addition, a set of six open-ended text-response questions concerned with the curriculum and other workplace preparation were asked. Quantitative and qualitative analyses revealed a range of responses that were significantly different according to gender. Amongst the significant findings are that females are more concerned than males with interpersonal communication, the development of people-skills and the people side of ICT. Implications for the ICT curriculum are that it should have more than a narrow male-centred technological focus and include the involvement of people and the effects of ICT on society in general. This broad inclusive pedagogical approach would satisfy the needs expressed by all respondents and contribute to increasing the enrolments of both female and male students in ICT.
Kulkarni, AV, Mehendale, SS, Yadav, HR, Kilari, AS, Taralekar, VS & Joshi, SR 2010, 'Circulating angiogenic factors and their association with birth outcomes in preeclampsia', Hypertension Research, vol. 33, no. 6, pp. 561-567.
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Kuo, F-C, Zhou, ZQ, Ma, J & Zhang, G 2010, 'Metamorphic testing of decision support systems: a case study', IET Software, vol. 4, no. 4, pp. 294-294.
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Decision support systems provide critical support to decision makers. These systems are increasingly complex and, as a result, they are very difficult to test because of the lack of an ideal test oracle. Lack of testing may result in poor software qualit
Kus, B, Kandasamy, J, Vigneswaran, S & Shon, HK 2010, 'Analysis of first flush to improve the water quality in rainwater tanks', WATER SCIENCE AND TECHNOLOGY, vol. 61, no. 2, pp. 421-428.
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Although most Australians receive their domestic supply from reticulated mains or town water, there are vast areas with very low population densities and few reticulated supplies. In many of these areas rainwater collected in tanks is the primary source of drinking water. Heavy metals have recently become a concern as their concentration in rain water tanks was found to exceed recommended levels suitable for human consumption. Rainwater storage tanks also accumulate contaminants and sediments that settle to the bottom. Although not widely acknowledged, small amounts of contaminants such as lead found in rain water (used as drinking water) may have a cumulative and poisonous effect on human health over a life time. This is true for certain factors that underlie many of the chronic illnesses that are becoming increasingly common in contemporary society. The paper reports on a study which is part of a project that aims to develop a cost effective in-line filtration system to improve water quality in rainwater tanks. To enable this, the characteristics of rainwater need to be known. One component of this characterization is to observe the effects of the first flush on a rainwater tank. Samples of the roof runoff collected from an urban residential roof located in the Sydney Metropolitan Area in the initial first few millimetres of rain were analysed. The results show that bypassing the first 2mm of rainfall gives water with most water quality parameters compliant with the Australian Drinking Water Guidelines (ADWG) standards. The parameters that did not comply were lead and turbidity, which required bypassing approximately the first 5mm of rainfall to meet ADWG standards. Molecular weight distribution (MWD) analysis showed that the concentration of rainwater organic matter (RWOM) decreased with increasing amount of roof runoff.
Kus, B, Kandasamy, J, Vigneswaran, S & Shon, HK 2010, 'Water quality characterisation of rainwater in tanks at different times and locations', WATER SCIENCE AND TECHNOLOGY, vol. 61, no. 2, pp. 429-439.
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Rainwater collected from ten domestic roofs in Sydney and from one in Wollongong, a town south of Sydney, Australia was analysed to determine the water quality and to compare against the Australian Drinking Water Guidelines (ADWG) to determine its suitability as a potable water supply. The pollutants analysed were 13 heavy metals, 8 salts & minerals, pH, ammonia, orthophosphate, conductivity, water hardness, turbidity, total suspended solids, Total dissolved salts & Bicarbonate. The results indicate that the rainwater tested complied to most of the parameters specified in the ADWG. Molecular weight distribution of organic matter from one of the domestic rainwater tanks was analysed in terms of the effects of aging and roof contact. Molecular weight distribution of organic matter in rainwater showed prominent peaks at 37,500 daltons may be due to biopolymers, 850 Da to humic substances, 500 Da to building blocks, 220 Da to low MW acids, and less than 220 Da to amphiphilics. The findings also indicate that the first flush volumes that by-passed the tank can have a significant influence on the water quality in the rainwater tank.
Laird, I, Lu, DDC & Agelidis, VG 2010, 'Switched-coupled-inductor DC/DC converters with high voltage conversion ratio', International Journal of Power Electronics, vol. 2, no. 4, pp. 345-345.
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When a low voltage DC power source is used, a DC-DC converter with a high step-up voltage gain is required to raise the voltage to more applicable levels. This is typically achieved by using classical converters driven by pulse width modulation (PWM) waves with extremely high duty cycles. Although theoretically step-up converters can achieve an infinite gain as the duty cycle approaches unity, in reality the gain will peak due to losses in the converter. Increasing the duty cycle beyond this point will only degrade the voltage gain. A solution to this problem is to use a converter that will produce the desired gain at a smaller duty cycle. This paper proposes replacing the inductor in the classical boost converter with a switched-coupled-inductor (SCL) configuration in order to achieve high gains with moderate duty cycles. Mathematical analysis is presented along with selected experimental results to support the theoretical considerations. © 2010 Inderscience Enterprises Ltd.
Lebegue, J, Aryal, R, Shon, HK, Vigneswaran, S, Heran, M & Grasmick, A 2010, 'Identification and quantification of foulant in submerged membrane reactor', DESALINATION AND WATER TREATMENT, vol. 24, no. 1-3, pp. 278-283.
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In submerged membrane system, membrane fouling is linked to the reversible accumulation of macromolecules and solids on the membrane surface and the irreversible sorption of soluble molecules inside the pores. In the first part of the paper, the fouling was analysed at two different aeration rates through the determination of membrane resistance due to (a) sludging (Rsludging), (b) irreversible biofilm (Rbiofilm) and (c) adsorption of organic (Radsorption). These results confirm the importance of aeration for sludge control in the bundle. In the second part of the paper, irreversible foulant obtained at different aeration rates were characterised. Membrane air flow rate limits adsorption of biopolymers onto or into the membrane surface.
Lee, E, Shon, HK & Cho, J 2010, 'Biofouling characteristics using flow field-flow fractionation: Effect of bacteria and membrane properties', BIORESOURCE TECHNOLOGY, vol. 101, no. 5, pp. 1487-1493.
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In this study, membrane biofouling caused by bacteria that have different characteristics was evaluated using flow field-flow fractionation (FlFFF). Three different bacteria which differed from size and shape (Staphylococcus epidermidis, Escherichia coli, Flavobacterium lutescens) were investigated with GM ultrafiltration (UF, rough with a low negative surface charge and relatively high hydrophobicity) and NE70 nanofiltration (NF, smooth with a high negative surface charge and relatively low hydrophobicity) membranes. The FlFFF retention time of S. epidermidis, E. coli and F. lutescens was highly influenced by the ionic strength of the solution and the surface polarity of the membranes and bacteria. The NF membrane was found to have a higher potential of biofouling than the UF membrane with the bacteria tested in this study. E. coli was the most significant biofoulant among the bacteria tested on both membrane surfaces based on FlFFF retention times compared to other bacteria.
Lee, JJ, Johir, MAH, Chinu, KH, Shon, HK, Vigneswaran, S, Kandasamy, J, Kim, CW & Shaw, K 2010, 'Novel pre-treatment method for seawater reverse osmosis: Fibre media filtration', DESALINATION, vol. 250, no. 2, pp. 557-561.
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A high rate fibre filter was used as a pre-treatment to seawater reverse osmosis (SWRO) to reduce membrane fouling. Seawater was drawn from Chowder Bay where the Sydney Institute of Marine Science, Australia is located. A lab-scale fibre filter with a height of 1000 mm and a diameter of 30 mm was used in conjunction with in-line coagulation. The effect of operating the fibre filter with different packing densities (105, 115 kg/m3) and filtration velocities (40, 60 m/h) was investigated in terms of silt density index (SDI10), modified fouling index (MFI), pressure drop (ÎP), turbidity and molecular weight distribution (MWD). The use of in-line coagulation improved the performance of fibre filter as measured by the MFI and SDI. Regardless of filtration velocity and packing density the MFI and SDI10 values remained low as did the turbidity until the end of the filtration run. The MWD analysis showed the removal efficiencies of organic materials like biopolymers, fulvic acids, low MW acids for even experiments with the highest filtration velocity (60 m/h) and lowest packing density (105 kg/m3). This pre-treatment has a small foot print as it has the capacity of operating at a very high filtration velocity
Lee, M, Hinder, MR, Gandevia, SC & Carroll, TJ 2010, 'The ipsilateral motor cortex contributes to cross-limb transfer of performance gains after ballistic motor practice', The Journal of Physiology, vol. 588, no. 1, pp. 201-212.
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Although it has long been known that practicing a motor task with one limb can improve performance with the limb opposite, the mechanisms remain poorly understood. Here we tested the hypothesis that improved performance with the untrained limb on a fastest possible (i.e. ballistic) movement task depends partly on cortical circuits located ipsilateral to the trained limb. The idea that crossed effects, which are important for the learning process, might occur in the 'untrained' hemisphere following ballistic training is based on the observation that tasks requiring strong descending drive generate extensive bilateral cortical activity. Twenty-one volunteers practiced a ballistic index finger abduction task with their right hand, and corticospinal excitability was assessed in two hand muscles (first dorsal interosseus, FDI; adductor digiti minimi, ADM). Eight control subjects did not train. After training, repetitive transcranial magnetic stimulation (rTMS; 15 min at 1 Hz) was applied to the left (trained) or right (untrained) motor cortex to induce a 'virtual lesion'. A third training group received sham rTMS, and control subjects received rTMS to the right motor cortex. Performance and corticospinal excitability (for FDI) increased in both hands for training but not control subjects. rTMS of the left, trained motor cortex specifically reduced training-induced gains in motor performance for the right, trained hand, and rTMS of the right, untrained motor cortex specifically reduced performance gains for the left, untrained hand. Thus, cortical processes within the untrained hemisphere, ipsilateral to the trained hand, contribute to early retention of ballistic performance gains for the untrained limb. © 2010 The Authors. Journal compilation © 2010 The Physiological Society.
Lee, T, Mittal, R, Reichardt, BW, Spalek, R & Szegedy, M 2010, 'Quantum query complexity of state conversion', Proc. 52nd IEEE Symp. on Foundations of Computer Science (FOCS), 2011, pages 344-353, pp. 344-353.
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State conversion generalizes query complexity to the problem of converting
between two input-dependent quantum states by making queries to the input. We
characterize the complexity of this problem by introducing a natural
information-theoretic norm that extends the Schur product operator norm. The
complexity of converting between two systems of states is given by the distance
between them, as measured by this norm.
In the special case of function evaluation, the norm is closely related to
the general adversary bound, a semi-definite program that lower-bounds the
number of input queries needed by a quantum algorithm to evaluate a function.
We thus obtain that the general adversary bound characterizes the quantum query
complexity of any function whatsoever. This generalizes and simplifies the
proof of the same result in the case of boolean input and output. Also in the
case of function evaluation, we show that our norm satisfies a remarkable
composition property, implying that the quantum query complexity of the
composition of two functions is at most the product of the query complexities
of the functions, up to a constant. Finally, our result implies that discrete
and continuous-time query models are equivalent in the bounded-error setting,
even for the general state-conversion problem.
Lei, G, Yang, GY, Shao, KR, Guo, Y, Zhu, J & Lavers, JD 2010, 'Electromagnetic Device Design Based on RBF Models and Two New Sequential Optimization Strategies', IEEE TRANSACTIONS ON MAGNETICS, vol. 46, no. 8, pp. 3181-3184.
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We present two new strategies for sequential optimization method (SOM) to deal with the optimization design problems of electromagnetic devices. One is a new space reduction strategy; the other is model selection strategy. Meanwhile, radial basis function (RBF) and compactly supported RBF models are investigated to extend the applied model types for SOM. Thereafter, Monte Carlo method is employed to demonstrate the efficiency and superiority of the new space reduction strategy. Five commonly used approximate models are considered for the discussion of model selection strategy. Furthermore, by two TEAM benchmark examples, we can see that SOM with the proposed new strategies and models can significantly speed the optimization design process, and the efficiency of SOM depends a little on the types of approximate models.
Lemke, C & Gabrys, B 2010, 'Meta-learning for time series forecasting and forecast combination', Neurocomputing, vol. 73, no. 10-12, pp. 2006-2016.
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Leveaux, RR 2010, 'Facilitating Referee's Decision Making in Sport via the Application of Technology', Communications of the IBIMA, vol. 545333, pp. 1-8.
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The aim of this study was to examine the current uses of technologies to assist referee decision making processes in professional and Olympic sports, to provide the platform for the facilitation of correct decisions. Through discussion groups and interviews, five major sports in Australia were examined. All participants in the study had all officiated from the grassroots level to the elite level, where at the latter level, had experience in the use of the relevant technologies adopted by their sport. The findings present that, in the majority of the examined sports, differing degrees of technology is being applied to aid the decision making process. When used the technology does provide the mechanism to facilitate in ensuring the correctness of the decision. The success of the introduction of the decision support technology is dependent on its usability, appropriate application and acceptance by the officials and the participants of the match. Via the diligent use and application of appropriate technologies, they can be used as an effective aid to refereeing. Illegal tactics and play were commonplace prior to the introduction of the use of technology to assist the referee. These areas, however, have been dramatically reduced and to a certain extent eliminated. Subsequently these introduced technologies have been a major contributor to the provision of a fairer platform for competition and led to improved player performance. The findings provide a basis for further studies and possible trials with technologies to assist the referee in providing fair competition and to improve the quality of referees decision making.
Li, L & Petersen, IR 2010, 'A Gramian-Based Approach to Model Reduction for Uncertain Systems', IEEE TRANSACTIONS ON AUTOMATIC CONTROL, vol. 55, no. 2, pp. 508-514.
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The technical note considers a problem of model reduction for a class of uncertain systems with structured norm bounded uncertainty. The technical note introduces controllability and observability Gramians in terms of certain parameterized algebraic Riccati inequalities. Based on these Gramians, three model reduction approaches are investigated for the underlying uncertain systems.
Li, N, Tsang, IW & Zhou, Z-H 2010, 'Efficient Optimization of Performance Measures by Classifier Adaptation', IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 2013, no. 6, pp. 35-1382.
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In practical applications, machine learning algorithms are often needed to
learn classifiers that optimize domain specific performance measures.
Previously, the research has focused on learning the needed classifier in
isolation, yet learning nonlinear classifier for nonlinear and nonsmooth
performance measures is still hard. In this paper, rather than learning the
needed classifier by optimizing specific performance measure directly, we
circumvent this problem by proposing a novel two-step approach called as CAPO,
namely to first train nonlinear auxiliary classifiers with existing learning
methods, and then to adapt auxiliary classifiers for specific performance
measures. In the first step, auxiliary classifiers can be obtained efficiently
by taking off-the-shelf learning algorithms. For the second step, we show that
the classifier adaptation problem can be reduced to a quadratic program
problem, which is similar to linear SVMperf and can be efficiently solved. By
exploiting nonlinear auxiliary classifiers, CAPO can generate nonlinear
classifier which optimizes a large variety of performance measures including
all the performance measure based on the contingency table and AUC, whilst
keeping high computational efficiency. Empirical studies show that CAPO is
effective and of high computational efficiency, and even it is more efficient
than linear SVMperf.
Li, X, Zhang, X, Han, X & Sheng, DC 2010, 'An iterative pressure-stabilized fractional step algorithm in saturated soil dynamics', International Journal for Numerical and Analytical Methods in Geomechanics, vol. 34, no. 7, pp. 733-753.
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Li, Y, Duan, R & Ying, M 2010, 'Local unambiguous discrimination with remaining entanglement', PHYSICAL REVIEW A, vol. 82, no. 3, pp. 1-6.
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A bipartite state, which is secretly chosen from a finite set of known entangled pure states, cannot immediately be useful in standard quantum information processing tasks. To effectively make use of the entanglement contained in this unknown state, we i
Li, Y, Li, J & Samali, B 2010, '1A24 Dynamic Performance of A Novel Magnetorheological Pin Joint', The Proceedings of the Symposium on the Motion and Vibration Control, vol. 2010, no. 0.
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Li, Y, Zhu, J, Yang, Q, Lin, ZW, Guo, Y & Wang, Y 2010, 'Measurement of Soft Magnetic Composite Material Using an Improved 3-D Tester With Flexible Excitation Coils and Novel Sensing Coils', IEEE Transactions on Magnetics, vol. 46, no. 6, pp. 1971-1974.
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In this paper, accurate measurement of three dimensional (3-D) magnetic properties of soft magnetic composite (SMC) material is carried out by using an improved 3-D tester with adjustable excitation coils and novel sensing coils attached upon the surface
Li, Z & Li, J 2010, 'Geometrically centered region: A “wet” model of protein binding hot spots not excluding water molecules', Proteins: Structure, Function, and Bioinformatics, vol. 78, no. 16, pp. 3304-3316.
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A protein interface can be as 'wet' as a protein surface in terms of the number of immobilized water molecules. This important water information has not been explicitly taken by computational methods to model and identify protein binding hot spots, overl
Liao, L-D, Li, M-L, Lai, H-Y, Shih, Y-YI, Lo, Y-C, Tsang, S, Chao, PC-P, Lin, C-T, Jaw, F-S & Chen, Y-Y 2010, 'Imaging brain hemodynamic changes during rat forepaw electrical stimulation using functional photoacoustic microscopy', NeuroImage, vol. 52, no. 2, pp. 562-570.
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Liaquat, AM, Kalam, MA, Masjuki, HH & Jayed, MH 2010, 'Potential emissions reduction in road transport sector using biofuel in developing countries', Atmospheric Environment, vol. 44, no. 32, pp. 3869-3877.
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Lin, C-C & Ziolkowski, RW 2010, 'Dual-band 3D magnetic EZ antenna', Microwave and Optical Technology Letters, vol. 52, no. 4, pp. 971-975.
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Lin, C-C, Ziolkowski, RW, Nielsen, JA, Tanielian, MH & Holloway, CL 2010, 'An efficient, low profile, electrically small, three-dimensional, very high frequency magnetic EZ antenna', Applied Physics Letters, vol. 96, no. 10, pp. 104102-104102.
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Lin, C-T & Huang, Y-M 2010, 'IEEE CIS DLP Tour in Taiwan [Society Briefs', IEEE Computational Intelligence Magazine, vol. 5, no. 4.
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Taiwan hosted an international workshop from January 31 to February 6, 2010, to promote the technical activities of IEEE CIS DLP (IEEE Computational Intelligence Society Distinguished Lecturer Program). This included technical talks on 'Anomaly Detection in Wireless Sensor Networks with Visual Clustering' by Jim Bezdek and 'Recognition Technology in Eldercare' by Jim Keller. The first presentation on Fuzzy Systems was held at National Chiao Tung University in Hsinchu. The second stop was the Brain Research Center at National Chiao-Tung University where Jim Bezdek and Jim Keller visited Chin-Teng Lin's laboratory and conversed with his students. Next, Jim Bezdek and Jim Keller visited the Eco-City at National Chiao-Tung University. The fourth location was National Cheng Kung University in Tainan.
Lin, C-T, Chang, C-J, Lin, B-S, Hung, S-H, Chao, C-F & Wang, I-J 2010, 'A Real-Time Wireless Brain–Computer Interface System for Drowsiness Detection', IEEE Transactions on Biomedical Circuits and Systems, vol. 4, no. 4, pp. 214-222.
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Lin, C-T, Huang, K-C, Chao, C-F, Chen, J-A, Chiu, T-W, Ko, L-W & Jung, T-P 2010, 'Tonic and phasic EEG and behavioral changes induced by arousing feedback', NeuroImage, vol. 52, no. 2, pp. 633-642.
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Lin, C-T, Ko, L-W, Chang, M-H, Duann, J-R, Chen, J-Y, Su, T-P & Jung, T-P 2010, 'Review of Wireless and Wearable Electroencephalogram Systems and Brain-Computer Interfaces – A Mini-Review', Gerontology, vol. 56, no. 1, pp. 112-119.
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Biomedical signal monitoring systems have rapidly advanced in recent years, propelled by significant advances in electronic and information technologies. Brain-computer interface (BCI) is one of the important research branches and has become a hot topic in the study of neural engineering, rehabilitation, and brain science. Traditionally, most BCI systems use bulky, wired laboratory-oriented sensing equipments to measure brain activity under well-controlled conditions within a confined space. Using bulky sensing equipments not only is uncomfortable and inconvenient for users, but also impedes their ability to perform routine tasks in daily operational environments. Furthermore, owing to large data volumes, signal processing of BCI systems is often performed off-line using high-end personal computers, hindering the applications of BCI in real-world environments. To be practical for routine use by unconstrained, freely-moving users, BCI systems must be noninvasive, nonintrusive, lightweight and capable of online signal processing. This work reviews recent online BCI systems, focusing especially on wearable, wireless and real-time systems.
Lin, C-T, Shen, T-K & Shou, Y-W 2010, 'Construction of Fisheye Lens Inverse Perspective Mapping Model and Its Applications of Obstacle Detection', EURASIP Journal on Advances in Signal Processing, vol. 2010, no. 1.
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Lin, C-T, Siana, L, Shou, Y-W & Shen, T-K 2010, 'A Conditional Entropy-Based Independent Component Analysis for Applications in Human Detection and Tracking', EURASIP Journal on Advances in Signal Processing, vol. 2010, no. 1.
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Lin, C-T, Siana, L, Shou, Y-W & Yang, C-T 2010, 'Multiclient Identification System Using Adaptive Probabilistic Model', EURASIP Journal on Advances in Signal Processing, vol. 2010, no. 1.
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Lin, C-T, Yang, C-T, Shou, Y-W & Shen, T-K 2010, 'An Efficient and Robust Moving Shadow Removal Algorithm and Its Applications in ITS', EURASIP Journal on Advances in Signal Processing, vol. 2010, no. 1.
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Lin, C-TF 2010, 'EEG-based Brain-computer Interface for Smart Living Environment Auto-adjustment', Journal of Medical and Biological Engineering, vol. 30, no. 4, pp. 237-237.
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Lin, C-Y, Wang, L, Than, K, Marca, FL & Park, P 2010, 'Cancer stem cell markers: what is their diagnostic value?', Expert Opinion on Medical Diagnostics, vol. 4, no. 6, pp. 473-481.
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Lin, J, Luo, Z & Tong, L 2010, 'A new multi-objective programming scheme for topology optimization of compliant mechanisms', Structural and Multidisciplinary Optimization, vol. 40, no. 1-6, pp. 241-255.
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This paper presents an alternative method in implementing multi-objective optimization of compliant mechanisms in the field of continuum-type topology optimization. The method is designated as "SIMP-PP" and it achieves multi-objective topology optimization by merging what is already a mature topology optimization method-solid isotropic material with penalization (SIMP) with a variation of the robust multi-objective optimization method-physical programming (PP). By taking advantages of both sides, the combination causes minimal variation in computation algorithm and numerical scheme, yet yields improvements in the multi-objective handling capability of topology optimization. The SIMP-PP multi-objective scheme is introduced into the systematic design of compliant mechanisms. The final optimization problem is formulated mathematically using the aggregate objective function which is derived from the original individual design objectives with PP, subjected to the specified constraints. A sequential convex programming method, the method of moving asymptotes (MMA) is then utilized to process the optimization evolvement based on the design sensitivity analysis. The main findings in this study include distinct advantages of the SIMP-PP method in various aspects such as computation efficiency, adaptability in convex and non-convex multi-criteria environment, and flexibility in problem formulation. Observations are made regarding its performance and the effect of multi-objective optimization on the final topologies. In general, the proposed SIMP-PP method is an appealing multi-objective topology optimization scheme suitable for "real world" problems, and it bridges the gap between standard topological design and multi-criteria optimization. The feasibility of the proposed topology optimization method is exhibited by benchmark examples.
Lin, J, Luo, Z & Tong, L 2010, 'Design of Adaptive Cores of Sandwich Structures Using a Compliant Unit Cell Approach and Topology Optimization', Journal of Mechanical Design, vol. 132, no. 8, pp. 1-8.
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This paper presents a new method in designing the core layer of adaptive sandwich structures. The proposed design formulation treats the core layer as a compliant unit cell network while the unit cell network is synthesized by repeatedly linked identical compliant unit cells. Each unit cell is designed to possess shape adaptive functions independently and through the accumulation of the number of cells within the network, the global adaptive functions are accumulated also. Therefore, the network is capable of achieving large scale shape adaptations of complex profile with high fidelity. Topology optimization is used to design the compliant unit cell. Depending on the problem formulation, topology optimization can perform the simultaneous design of both the host material and the actuation material in the defined environment. This research includes a numerical case study to illustrate the technical aspects of this design philosophy. This is followed by the rapid prototyping of two scaled models and experimental validation.
Lin, W, Huang, B, Fu, Q, Wang, G & Huang, J 2010, 'Investigation of nitroxide radical coupling reaction in wide temperature range and different catalyst system', Journal of Polymer Science Part A: Polymer Chemistry, vol. 48, no. 14, pp. 2991-2999.
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Lin, W-J, Huang, T-Y, Ko, L-W, Lin, C-T, Hung, DL & Chang, EC 2010, 'The contributions of global and local object landmarks in Human Wayfinding behavior', Journal of Vision, vol. 9, no. 8, pp. 1132-1132.
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Lin, ZW, Li, YJ, Zhu, JG, Guo, Y & Wang, XL 2010, 'Magnetic flux penetration in polycrystalline SmFeO0.75F0.2As', Journal of Applied Physics, vol. 107, no. 9, pp. 09E114-09E114.
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Lin, ZW, Zhu, J, Guo, Y, Li, Y, Wang, S, Zhang, YB, Xu, KX & Cai, CB 2010, 'Magneto-optical visualization of vortices penetration into Ba(Fe1.8Co0.2)As2', Journal of Applied Physics, vol. 107, no. 9, pp. 09E155-09E155.
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Lindblom, A, Bhadri, V, Söderhäll, S, Öhrmalm, L, Wong, M, Norbeck, O, Lindau, C, Rotzén-Östlund, M, Allander, T, Catchpoole, D, Dalla-Pozza, L, Broliden, K & Tolfvenstam, T 2010, 'Respiratory viruses, a common microbiological finding in neutropenic children with fever', Journal of Clinical Virology, vol. 47, no. 3, pp. 234-237.
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Background: Febrile neutropenia is a common complication in children undergoing chemotherapy for malignancies. A microbial agent is only identified in 15-30% of the fever episodes and corresponds mostly to bacterial findings. Objective: To investigate viral infections as possible etiologic agents in episodes of febrile neutropenia. Study design: Nasopharyngeal aspirates (NPAs) from patients presenting with neutropenic fever at two pediatric oncology wards in Sweden and Australia were analyzed with a conventional virus-diagnostic approach and RT-PCR. Coupled blood samples were analyzed for the detection of CMV, EBV, adenovirus and erythrovirus. Bacterial blood culture was performed routinely. Results: Conventional virus-diagnostic approach coupled to routinely performed bacterial analyzes revealed an infectious agent in 29% compared to 60% when using PCR. By adding PCR, a viral pathogen was detected in 46% of the NPAs and in 4% of the blood samples collected. In half of the patients with bacteremia, respiratory tract viruses were co-detected. Conclusion: Respiratory viruses were frequently detected in NPAs suggesting a significant role of viral infections in children presenting with neutropenic fever. The meaning of these findings needs to be further evaluated but has the potential to individualize infection treatment and to reduce the extensive use of antibiotics in immunocompromised children with neutropenia. © 2009 Elsevier B.V. All rights reserved.
Ling, SH 2010, 'A New Neural Network Structure: Node-to-Node-Link Neural Network.', J. Intell. Learn. Syst. Appl., vol. 2, no. 1, pp. 1-11.
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This paper presents a new neural network structure and namely node-to-node-link neural network (N-N-LNN) and it is trained by real-coded genetic algorithm (RCGA) with average-bound crossover and wavelet mutation [1]. The N-N-LNN exhibits a node-to-node relationship in the hidden layer and the network parameters are variable. These characteristics make the network adaptive to the changes of the input environment, enabling it to tackle different input sets distributed in a large domain. Each input data set is effectively handled by a corresponding set of network parame-ters. The set of parameters is governed by other nodes. Thanks to these features, the proposed network exhibits better learning and generalization abilities. Industrial application of the proposed network to hand-written graffiti recognition will be presented to illustrate the merits of the network.
Lingam, HK, Chen, X, Yisgedu, T, Huang, Z, Zhao, J-C & Shore, SG 2010, 'Redetermination of di-μ-hydrido-hexahydridotetrakis(tetrahydrofuran)dialuminium(III)magnesium(II)', Acta Crystallographica Section E Structure Reports Online, vol. 66, no. 5, pp. m575-m575.
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Lister, R 2010, 'COMPUTING EDUCATION RESEARCHGeek genes and bimodal grades', ACM Inroads, vol. 1, no. 3, pp. 16-17.
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This is a regular invited column I write for this journal.
Lister, R 2010, 'COMPUTING EDUCATION RESEARCHTeaching the super profs to fish', ACM Inroads, vol. 1, no. 2, pp. 16-17.
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This is a regular invited column I write for this journal.
Lister, R 2010, 'CS EDUCATION RESEARCHThe naughties in CSEd research', ACM Inroads, vol. 1, no. 1, pp. 22-24.
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This is a regular invited column I write for this journal.
Lister, R 2010, 'CS Research', ACM SIGCSE Bulletin, vol. 41, no. 4, pp. 13-14.
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This is a regular invited column I write for this journal.
Lister, R 2010, 'The closing of the CSEd mind', ACM Inroads, vol. 1, no. 4, pp. 17-18.
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This is a regular invited column I write for this journal.
Lister, R, Clear, T, Simon, Bouvier, DJ, Carter, P, Eckerdal, A, Jacková, J, Lopez, M, McCartney, R, Robbins, P, Seppälä, O & Thompson, E 2010, 'Naturally occurring data as research instrument', ACM SIGCSE Bulletin, vol. 41, no. 4, pp. 156-173.
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In New Zealand and Australia, the BRACElet project has been investigating students' acquisition of programming skills in introductory programming courses. The project has explored students' skills in basic syntax, tracing code, understanding code, and writing code, seeking to establish the relationships between these skills. This ITiCSE working group report presents the most recent step in the BRACElet project, which includes replication of earlier analysis using a far broader pool of naturally occurring data, refinement of the SOLO taxonomy in code-explaining questions, extension of the taxonomy to code-writing questions, extension of some earlier studies on students' 'doodling' while answering exam questions, and exploration of a further theoretical basis for work that until now has been primarily empirical.
Little, H & Eager, D 2010, 'Risk, challenge and safety: implications for play quality and playground design', European Early Childhood Education Research Journal, vol. 18, no. 4, pp. 497-513.
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In many countries playground design is driven more by safety than developmental benefits. As risk minimisation strategies become more stringent, many researchers and practitioners are questioning whether young children are able to take sufficient risks in play in order for their play experiences to be interesting and developmentally challenging. This study examined the outdoor play choices and risk-taking behaviour of 38 children (25 boys, 13 girls) aged between 48 and 64 months from Sydney, Australia. Semi-structured interviews examined children's play preferences and playground equipment usage. Observations of play explored engagement in risk-taking behaviour. Selection of equipment indicated a strong preference for challenge and excitement. However, the dominant observed play behaviours involved little risk suggesting equipment at these parks provided few opportunities to practice mastery of skills already in their behavioural repertoire, learning new skills or building on current capabilities. The findings have implications for play provision and playground design.
Liu, Q & Li, J 2010, 'Protein binding hot spots and the residue-residue pairing preference: a water exclusion perspective', BMC Bioinformatics, vol. 11, no. 1.
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Liu, RP, Sutton, GJ & Collings, IB 2010, 'A New Queueing Model for QoS Analysis of IEEE 802.11 DCF with Finite Buffer and Load', IEEE Transactions on Wireless Communications, vol. 9, no. 8, pp. 2664-2675.
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Liu, W & Li, S 2010, 'Reasoning about Cardinal Directions between Extended Objects: The Hardness Result', Artificial Intelligence Journal, vol. 175, no. 18, pp. 2155-2169.
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The cardinal direction calculus (CDC) proposed by Goyal and Egenhofer is a
very expressive qualitative calculus for directional information of extended
objects. Early work has shown that consistency checking of complete networks of
basic CDC constraints is tractable while reasoning with the CDC in general is
NP-hard. This paper shows, however, if allowing some constraints unspecified,
then consistency checking of possibly incomplete networks of basic CDC
constraints is already intractable. This draws a sharp boundary between the
tractable and intractable subclasses of the CDC. The result is achieved by a
reduction from the well-known 3-SAT problem.
Liu, W, Zhang, X, Li, S & Ying, M 2010, 'Reasoning about cardinal directions between extended objects', ARTIFICIAL INTELLIGENCE, vol. 174, no. 12-13, pp. 951-983.
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Direction relations between extended spatial objects are important commonsense knowledge. Recently, Goyal and Egenhofer proposed a relation model, known as the cardinal direction calculus (CDC), for representing direction relations between connected plane regions. The CDC is perhaps the most expressive qualitative calculus for directional information, and has attracted increasing interest from areas such as artificial intelligence, geographical information science, and image retrieval. Given a network of CDC constraints, the consistency problem is deciding if the network is realizable by connected regions in the real plane. This paper provides a cubic algorithm for checking the consistency of complete networks of basic CDC constraints, and proves that reasoning with the CDC is in general an NP-complete problem. For a consistent complete network of basic CDC constraints, our algorithm returns a âcanonicalâ solution in cubic time. This cubic algorithm is also adapted to check the consistency of complete networks of basic cardinal constraints between possibly disconnected regions.
Longbing Cao, Yanchang Zhao, Huaifeng Zhang, Dan Luo, Chengqi Zhang & Park, EK 2010, 'Flexible Frameworks for Actionable Knowledge Discovery', IEEE Transactions on Knowledge and Data Engineering, vol. 22, no. 9, pp. 1299-1312.
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Most data mining algorithms and tools stop at the mining and delivery of patterns satisfying expected technical interestingness. There are often many patterns mined but business people either are not interested in them or do not know what follow-up actio
Lu, C, Chen, J & Duan, R 2010, 'Optimal Perfect Distinguishability between Unitaries and Quantum Operations'.
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We study optimal perfect distinguishability between a unitary and a general
quantum operation. In 2-dimensional case we provide a simple sufficient and
necessary condition for sequential perfect distinguishability and an analytical
formula of optimal query time. We extend the sequential condition to general
d-dimensional case. Meanwhile, we provide an upper bound and a lower bound for
optimal sequential query time. In the process a new iterative method is given,
the most notable innovation of which is its independence to auxiliary systems
or entanglement. Following the idea, we further obtain an upper bound and a
lower bound of (entanglement-assisted) q-maximal fidelities between a unitary
and a quantum operation. Thus by the recursion in [1] an upper bound and a
lower bound for optimal general perfect discrimination are achieved. Finally
our lower bound result can be extended to the case of arbitrary two quantum
operations.
Lu, H, Sriyanyong, P, Song, YH & Dillon, T 2010, 'Experimental study of a new hybrid PSO with mutation for economic dispatch with non-smooth cost function', International Journal of Electrical Power & Energy Systems, vol. 32, no. 9, pp. 921-935.
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Particle swarm optimization (PSO) is a population-based evolutionary technique. Advancements in the PSO development over the last decade have made it one of the most promising optimization algorithms for a wide range of complex engineering optimization problems which traditional derivative-based optimization techniques cannot handle. The most attractive features of PSO are its algorithmic simplicity and fast convergence. However, PSO tends to suffer from premature convergence when applied to strongly multi-modal optimization problems. This paper proposes a method of incorporating a real-valued mutation (RVM) operator into the PSO algorithms, aimed at enhancing global search capability. Three variants of PSO algorithms are considered. The resultant hybrid PSO-RVM algorithms are experimentally investigated along with the PSO variants and an existing PSO with Gaussian mutation using six typical benchmark functions. It is interesting to see that the effectiveness of RVM varies for different PSO variants as well as different kinds of functions. It has been found that one of the hybrid algorithms, CBPSO-RVM, which is an integration of the PSO with the constriction factor and inertia weight (CBPSO) and the RVM operator, exhibits significantly better performance in most of the test cases compared to the other algorithms under consideration. Furthermore, this algorithm is superior to most of the existing algorithms used in this study when applied to two practical ED problems with non-smooth cost function considering the multiple fuel type and/or valve-point loading effects.
Lu, J & Zhang, G 2010, 'A special issue on decision intelligence with soft computing', SOFT COMPUTING, vol. 14, no. 12, pp. 1253-1254.
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Lu, J, Chin, KL, Yao, J, Xu, J & Xiao, J 2010, 'Cross-cultural education: Learning methodology and behaviour analysis for asian students in IT field of australian universities', Conferences in Research and Practice in Information Technology Series, vol. 103, pp. 117-125.
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Australian tertiary education of information technology (IT) has attracted a large number of international students, particularly from Asia. Cultural factors have affected the quality of learning of international students and the teaching approaches adopted by Australian lecturers. Therefore, cross-cultural teaching and learning situations have become an important issue in Australian universities. This study intends to improve the understanding of Asian students' cultural backgrounds, their previous learning approaches and theirperspectives on Australian culture and educational mode, with the objective of helping international students from different cultural backgrounds to overcome the difficulties of cross-cultural study. This study has completed a questionnaire survey of 1026 students, including 292 Information Technology (28.5%) students from five universities in Australia. Among these IT students, there are 100 (34.25%) local students and 192 (65.75%) international students from 39 other countries. The questionnaire contains 55 questions within six question sections and one information section. This paper presents comparison-based data analysis results of this survey on learning methodology and behaviours of Asian students in IT field of Australian universities. It particularly reveals the main difference for students between the universities in their home countries and in Australia, also the difficulties of these students during their study in Australian university through qualitative analysis on open questions of the survey. This paper also reports the research methodology and main findings in cross-culture teaching and learning generated from this study. This work was fully supported by Australian Learning and Teaching Council (CG7-494). © 2010, Australian Computer Society, Inc.
Lu, J, Ruan, D & Zhang, G 2010, 'A special issue on Intelligent Decision Support and Warning Systems', KNOWLEDGE-BASED SYSTEMS, vol. 23, no. 1, pp. 1-2.
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Lu, J, Shambour, Q, Xu, Y, Lin, Q & Zhang, G 2010, 'BizSeeker A hybrid semantic recommendation system for personalized government-to-business e-services', INTERNET RESEARCH, vol. 20, no. 3, pp. 342-365.
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Purpose - The purpose of this paper is to develop a hybrid semantic recommendation system to provide personalized government to business (G2B) e-services, in particular, business partner recommendation e-services for Australian small to medium enterprises (SMEs). Design/methodology/approach - The study first proposes a product semantic relevance model. It then develops a hybrid semantic recommendation approach which combines item-based collaborative filtering (CF) similarity and item-based semantic similarity techniques. This hybrid approach is implemented into an intelligent business-partner-locator recommendation-system prototype called BizSeeker. Findings - The hybrid semantic recommendation approach can help overcome the limitations of existing recommendation techniques. The recommendation system prototype, BizSeeker, can recommend relevant business partners to individual business users (e.g. exporters), which therefore will reduce the time, cost and risk of businesses involved in entering local and international markets. Practical implications - The study would be of great value in e-government personalization research. It would facilitate the transformation of the current G2B e-services into a new stage wherein the e-government agencies offer personalized e-services to business users. The study would help government policy decision-makers to increase the adoption of e-government services. Originality/value - Providing personalized e-services by e-government can be seen as an evolution of the intentions-based approach and will be one of the next directions of government e-services. This paper develops a new recommender approach and systems to improve personalization of government e-services.
Lu, J, Wang, C, Zhang, G & Ma, J 2010, 'Collaborative management of web ontology data with flexible access control', EXPERT SYSTEMS WITH APPLICATIONS, vol. 37, no. 5, pp. 3737-3746.
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The creation and management of ontology data on web sites (e.g. instance data that is used to annotate web pages) is important technical support for the growth of the semantic web. This study identifies some key issues for web ontology data management and describes an ontology data management system, called robinet, to perform the management. This paper presents the structure of the system and introduces a Web ontology data management model that enables a flexible access control mechanism. This model adds rules into the robinet system to utilize the semantics of ontology for controlling the access to ontology data. The implementation of the rule-based access control mechanism and related testing are also discussed
Lui, H-S & Hui, HT 2010, 'Improved mutual coupling compensation in compact antenna arrays', IET Microwaves, Antennas & Propagation, vol. 4, no. 10, pp. 1506-1506.
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Luo, F, Liu, J & Li, J 2010, 'Discovering conditional co-regulated protein complexes by integrating diverse data sources.', BMC Syst Biol, vol. 4 Suppl 2, no. Suppl 2, pp. S4-13.
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BACKGROUND: Proteins interacting with each other as a complex play an important role in many molecular processes and functions. Directly detecting protein complexes is still costly, whereas many protein-protein interaction (PPI) maps for model organisms are available owing to the fast development of high-throughput PPI detecting techniques. These binary PPI data provides fundamental and abundant information for inferring new protein complexes. However, PPI data from different experiments do not overlap very much usually. The main reason is that the functions of proteins can activate only on certain environment or stimulus. In a short, PPI is condition-specific. Therefore specifying the conditions on when complexes are present is necessary for a deep understanding of their behaviours. Meanwhile, proteins have various interaction ways and control mechanisms to form different kinds of complexes. Thus the discovery of a certain type of complexes should depend on their own distinct biological or topological characteristics. We do not attempt to find all kinds of complexes by using certain features. Here, we integrate transcription regulation data (TR), gene expression data (GE) and protein-protein interaction data at the systems biology level to discover a special kind of protein complex called conditional co-regulated protein complexes. A conditional co-regulated protein complex has three remarkable features: the coding genes of the member proteins share the same transcription factor (TF), under a certain condition the coding genes express co-ordinately and the member proteins interact mutually as a complex to implement a common biological function. RESULTS: A framework of discovering the conditional co-regulated protein complexes is proposed. Testing on the Yeast data sets under the Cell Cycle, DNA Damage and Dauxic Shift conditions, we identified a total of 29 conditional co-regulated complexes, among which the coding genes in 14 complexes show a strong association...
Luo, Q & Tong, L 2010, 'Multi-physics field models of photostrictive unimorphs and heterogeneous bimorphs subjected to light illumination and mechanical loading', International Journal of Solids and Structures, vol. 47, no. 16, pp. 2006-2016.
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Luo, Z, Gao, W & Song, C 2010, 'Design of Multi-phase Piezoelectric Actuators', Journal of Intelligent Material Systems and Structures, vol. 21, no. 18, pp. 1851-1865.
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A new multi-objective topology optimization method is proposed in this study for systematic design of multi-phase piezoelectric actuators. The actuator under consideration is composed of a compliant host structure equipped with piezoelectric elements, where the host structure serves as a compliant amplifier to enlarge the small stroke output generated by the actuation force of piezoelectric materials. In the context of optimal design of smart actuators, however, most up-to-date approaches are either to optimize only the host passive structure with pre-determined piezoelectric stacks or to optimize the piezoelectric actuator with pre-known structure, both of which restricts the overall performance of multi-material actuators. To capture the inherent multi-criteria characteristic of compliant actuators, this study proposes a new multi-objective topology optimization formulation to consider both the structural stiffness and mechanical flexibility of the actuation system via the physical programming. A SIMP-based interpolation scheme is applied to describe practical material properties of any points in the orthotropic design domain. The design problem of the actuator is thus transformed to a numerical process of distributing multiple materials iteratively in the design domain until both the host structure and piezoelectric material elements are optimized. Two typical numerical examples are applied to demonstrate the effectiveness of this method in the design of in-plane actuation devices.
Luo, Z, Gao, W & Song, C 2010, 'Design of Multi-phase Piezoelectric Actuators', Journal of Intelligent Material Systems and Structures, vol. 21, no. 8, pp. 1851-1865.
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A new multi-objective topology optimization method is proposed in this study for systematic design of multi-phase piezoelectric actuators. The actuator under consideration is composed of a compliant host structure equipped with piezoelectric elements, where the host structure serves as a compliant amplifier to enlarge the small stroke output generated by the actuation force of piezoelectric materials. In the context of optimal design of smart actuators, however, most up-to-date approaches are either to optimize only the host passive structure with pre-determined piezoelectric stacks or to optimize the piezoelectric actuator with pre-known structure, both of which restricts the overall performance of multi-material actuators. To capture the inherent multi-criteria characteristic of compliant actuators, this study proposes a new multi-objective topology optimization formulation to consider both the structural stiffness and mechanical flexibility of the actuation system via the physical programming. A SIMP-based interpolation scheme is applied to describe practical material properties of any points in the orthotropic design domain. The design problem of the actuator is thus transformed to a numerical process of distributing multiple materials iteratively in the design domain until both the host structure and piezoelectric material elements are optimized. Two typical numerical examples are applied to demonstrate the effectiveness of this method in the design of in-plane actuation devices
Ma, J, Lu, J & Zhang, G 2010, 'Decider: A fuzzy multi-criteria group decision support system', KNOWLEDGE-BASED SYSTEMS, vol. 23, no. 1, pp. 23-31.
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Multi-criteria group decision making (MCGDM) aims to support preference-based decision over the available alternatives that are characterized by multiple criteria in a group. To increase the level of overall satisfaction for the final decision across the group and deal with uncertainty in decision process, a fuzzy MCGDM process (FMP) model is established in this study. This FMP model can also aggregate both subjective and objective information under multi-level hierarchies of criteria and evaluators. Based on the FMP model, a fuzzy MCGDM decision support system (called Decider) is developed, which can handle information expressed in linguistic terms, boolean values, as well as numeric values to assess and rank a set of alternatives within a group of decision makers. Real applications indicate that the presented FMP model and the Decider software are able to effectively handle fuzziness in both subjective and objective information and support group decision-making under multi-level criteria with a higher level of satisfaction by decision makers.
Ma, J, Lu, J & Zhang, G 2010, 'Team situation awareness measure using semantic utility functions for supporting dynamic decision-making', SOFT COMPUTING, vol. 14, no. 12, pp. 1305-1316.
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Team decision-making is a remarkable feature in a complex dynamic decision environment, which can be supported by team situation awareness. In this paper, a team situation awareness measure (TSAM) method using a semantic utility function is proposed. The semantic utility function is used to clarify the semantics of qualitative information expressed in linguistic terms. The individual and team situation awareness are treated as linguistic possibility distributions on the potential decisions in a dynamic decision environment. In the TSAM method, team situation awareness is generated through reasoning and aggregating individual situation awareness based on a multi-level hierarchy mental model of the team. Individual and team mental models are composed of key drivers and significant variables. An illustrative example in telecoms customer churn prediction is given to explain the effectiveness and the main steps of the TSAM method.
Ma, J, Zhang, G & Lu, J 2010, 'A state-based knowledge representation approach for information logical inconsistency detection in warning systems', KNOWLEDGE-BASED SYSTEMS, vol. 23, no. 2, pp. 125-131.
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Detecting logical inconsistency in collected information is a vital function when deploying a knowledge-based warning system to monitor a specific application domain for the reason that logical inconsistency is often hidden from seemingly consistent information and may lead to unexpected results. Existing logical inconsistency detection methods usually focus on information stored in a knowledge base by using a well-defined general purpose knowledge representation approach, and therefore cannot fulfill the demands of a domain-specific situation. This paper first proposes a state-based knowledge representation approach, in which domain-specific knowledge is expressed by combinations of the relevant objects states. Based on this approach, a method for information logical inconsistency detection (ILID) is developed which can flexibly handle the demands of various domain-specific situations through reducing part of restrictions in existing methods. Finally, two real-case based examples are presented to illustrate the ILID method and its advantages.
Ma, M, Huang, X & Guo, Y 2010, 'An interference self-cancellation technique for SC-FDMA systems', IEEE Communications Letters, vol. 14, no. 6, pp. 512-514.
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A new interference self-cancellation (ISC) method for Single Carrier-FDMA (SC-FDMA) systems is proposed to mitigate the inter-user interference caused by frequency offset or Doppler effect. By transmitting a compensation symbol at the first symbol location in each resource block, the energy leakage can be significantly suppressed. With little bandwidth and power sacrifice, the proposed method can greatly improve the system robustness against frequency offset. Simulation results show that the signal-to-interference ratio (SIR) can be improved by 7 dB on average for the entire system band, and up to 11.7 dB for an individual user. © 2010 IEEE.
MacDougall, C, McGregor, C & Percival, J 2010, 'The fusion of clinical guidelines with technology: Trends & challenges', Electronic Journal of Health Informatics, vol. 5, no. 2.
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The use of Health Information Technology (HIT) within the healthcare setting can be a great resource to contribute to improved patient care. Clinical guidelines are developed to aid in the decision making process of healthcare professionals and contain the leading edge of best patient practice. There is an abundance of evidence presenting the benefits that HIT contain; however, its use is rarely incorporated in today's clinical guidelines. Although, research suggests that the benefits of HIT are enough to integrate their use in clinical guidelines, there are a number of challenges that interfere with its implementation, such as, cultural diversity, interdisciplinary nature, lack of HIT knowledge for workers, evolution of technology, heavy clinical workload and lack of medical background in developers of HIT. The purpose of this research project is to present a literature review to further understand the trends and challenges of implementing HIT use within clinical guidelines. A modelling system, PaJMa is also introduced to visually depict a patient's journey and the methods of documentation. PaJMa can aid in discovering gaps in healthcare documentation and closing those gaps through HIT use within clinical guidelines. Further research revealed that there are models and approaches supporting the process and creation of clinical guidelines but none of these enable the inclusion of what technology will be used to support the implementation of these procedures. The research project concludes with ideas for future research in the area of clinical guideline development and HIT implementation. © of articles is retained by authors.
Mahlia, TMI & Iqbal, A 2010, 'Cost benefits analysis and emission reductions of optimum thickness and air gaps for selected insulation materials for building walls in Maldives', Energy, vol. 35, no. 5, pp. 2242-2250.
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Mahlia, TMI & Saidur, R 2010, 'A review on test procedure, energy efficiency standards and energy labels for room air conditioners and refrigerator–freezers', Renewable and Sustainable Energy Reviews, vol. 14, no. 7, pp. 1888-1900.
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Mahlia, TMI & Yanti, PAA 2010, 'Cost efficiency analysis and emission reduction by implementation of energy efficiency standards for electric motors', Journal of Cleaner Production, vol. 18, no. 4, pp. 365-374.
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Mahlia, TMI, Hor, CG, Masjuki, HH, Husnawan, M, Varman, M & Mekhilef, S 2010, 'Clothes drying from room air conditioning waste heat: Thermodynamics investigation', Arabian Journal for Science and Engineering, vol. 35, no. 1, pp. 339-351.
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This paper discusses an experimental study for using heat wasted from a split-type room air conditioner for clothes drying. The study compares the effectiveness of this drying system to a conventional one in terms of duration required to dry the clothes and energy consumption. The objectives of the study are to analyze performance of a room air-conditioner as clothes dryer and to evaluate the effectiveness of its heat waste for a drying system. The experiment is conducted for three drying conditions, namely, outdoor natural drying at midday, indoor natural drying, and drying using air-conditioner waste heat. The study found that using room air-conditioner waste heat for clothes drying is very reliable, especially in congested high-rise residential areas, without additional electricity cost. © 2008 by King Fahd University of Petroleum & Minerals (KFUPM).
Mahmud, AR, Biswajeet, P, Hadipour, M & Kadar, HA 2010, 'Mathematical modeling of urban air quality: An urban transportation modeling case study in Petaling Jaya, Malaysia', Research Journal of Chemistry and Environment, vol. 14, no. 4, pp. 14-21.
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This paper provides the findings on a project . undertaken to develop a geo-spatial mathematical model relating land-use, road type and air quality. The model shows how spatial elements and issues were quantified to accurately represent the usual and unusual urban environment in the development of residential land-use. The mathematical relationship was based on the optimum distance between residential area and urban transportation network. The spatial data (urban land-use and urban network development) were generated using satellite images, aerial photos and land use maps. Geospatial analyses were performed to find the effect and impact of urban air quality with respect to urban transportation networks. The output of the study would assist the task to reduce negative transport environmental impacts particularism the field of air pollution. It would also be useful in identifying the potential residential area with respect to urban transportation network towards ' achieving sustainable development.
Manoharan, V, Yunusa, IAM, Loganathan, P, Lawrie, R, Murray, BR, Skilbeck, CG & Eamus, D 2010, 'Boron contents and solubility in Australian fly ashes and its uptake by canola (Brassica napus L.) from the ash-amended soils', AUSTRALIAN JOURNAL OF SOIL RESEARCH, vol. 48, no. 5, pp. 480-487.
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Phytotoxicity due to excessive boron (B) uptake by plants impedes routine agronomic utilisation of coal fly ash. We assessed 11 fly ashes (pH 3.14â10.77) having total B content (Bt) of 12â136 mg/kg, of which 20â30% was hot water soluble (Bs) in the acidic ashes (pH <5) and 5â10% in the alkaline ashes, for their potential to supply B to plants and their risk associated with phytotoxicity. We found the Bs/Bt to be negatively correlated (R2 = 0.63**, N = 11) with ash pH. We conducted two trials in which canola was grown in soils amended with fly ash. In the first trial, an alkaline fly ash (Bt 66 mg/kg) was incorporated at 5 rates of up to 625 Mg/ha into the top 50mm of 2 acidic soils in 0.30-m-long intact cores, and sown with canola. Boron concentration in leaves at flowering reached the phytotoxic threshold, and both plant growth and seed yield were reduced, only at 625 Mg/ha. In the second trial, 4 fly ashes (pH 3.29â10.77, Bt 12â127 mg/kg) were incorporated at 4 rates of up to 108 Mg/ha into the top 0.10mof 2 acidic soils in 1.0-m-long intact cores and then sown with canola. Ashes with highest Bt, when applied at 108 Mg/ha, increased B concentration in the topsoil only. Of the 2 ashes with the highest Bt, only that which produced low soil pH and applied at 108 Mg/ha increased B concentration in the shoot, but was still below phytotoxic threshold. The results suggest that B derived from these ashes may not cause phytotoxicity and excessive soil B accumulation if the ashes are applied at modest rates (<36 Mg/ha) to the topsoil layers.
Manoharan, V, Yunusa, IAM, Loganathan, P, Lawrie, R, Skilbeck, G, Burchett, MD, Murray, BR & Eamus, D 2010, 'Assessments of Class F fly ashes for amelioration of soil acidity and their influence on growth and uptake of Mo and Se by canola', FUEL, vol. 89, no. 11, pp. 3498-3504.
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Coal fly ash can be used to ameliorate productivity constraints in agricultural soils, but their efficacy still remains highly variable. To ascertain the capacity of Class F fly ashes to modify pH of acidic soils, and their effects on the yield and uptake of molybdenum (Mo) and selenium (Se) by canola (Brassica napus L.), we applied two acidic and two alkaline Class F ashes at rates equivalent to 0, 12, 36, and 108 Mg/ ha to the top layer (0â10 cm) of 100 cm long intact cores of acidic sandy clay and clay loam soils. Only the alkaline ash which had the highest calcium carbonate equivalent (2.43%) increased the pH of the top 10 cm of the sandy clay soil. However, this ash was also highly saline and when applied at P36 Mg/ha it increased the electrical conductivity in the top soil layer. Increases in soil pH as a result of alkaline ash addition also elevated concentrations of Se in the plant shoot. The ashes with high concentrations of Mo and Se generally increased uptake of these elements in the plant shoot and/or seed. When these ashes were applied at 108 Mg/ha they increased the concentrations of these elements in the treated topsoil.
Mariam, T & Nghiem, LD 2010, 'Landfill leachate treatment using hybrid coagulation-nanofiltration processes', Desalination, vol. 250, no. 2, pp. 677-681.
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Marjanovic, O 2010, 'The Importance of Process Thinking in Business Intelligence', International Journal of Business Intelligence Research (IJBIR), vol. 1, no. 4, pp. 29-46.
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The growing field of Operational Business Intelligence (BI) has resulted in increasing interest in BI-supported Business Processes (BPs), including their management and ongoing improvement. This has led BI practitioners to consider another field–Business Process Management (BPM)–that is closely related to business performance management. However, current approaches to the BPM and operational BI integration have been limited and reduced to the problem of technical integration of BPM and BI systems. This paper argues that by adopting process- thinking in BI, further opportunities for business value creation could be discovered through systematic analysis of the non-technical aspects of BI and BPM integration, including strategy alignment, human-centered knowledge management, and ongoing improvement of BI supported processes. The authors propose a theoretical framework founded in the related research in BPM, BI, and Knowledge Management (KM) fields, describing the ways it has been used to guide ongoing empirical research in diverse case organizations across different industry sectors.
Markham, AP, Barrett, BS, Esfandiary, R, Picking, WL, Picking, WD, Joshi, SB & Russell Middaugh, C 2010, 'Formulation and Immunogenicity of a Potential Multivalent Type III Secretion System-Based Protein Vaccine', Journal of Pharmaceutical Sciences, vol. 99, no. 11, pp. 4497-4509.
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Martelli, C, Canning, J, Khoury, T, Skivesen, N, Kristensen, M, Huyang, G, Jensen, P, Neto, C, Sum, TJ, Hovgaard, MB, Gibson, BC & Crossley, MJ 2010, 'Self-assembled porphyrin microrods and observation of structure-induced iridescence', JOURNAL OF MATERIALS CHEMISTRY, vol. 20, no. 12, pp. 2310-2316.
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Martín, F & Ziolkowski, RW 2010, 'Editorial: Microwave metamaterials: application to devices, circuits and antennas', IET Microwaves, Antennas & Propagation, vol. 4, no. 8, pp. 975-975.
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Maskaoui, K & Zhou, JL 2010, 'Colloids as a sink for certain pharmaceuticals in the aquatic environment', Environmental Science and Pollution Research, vol. 17, no. 4, pp. 898-907.
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The occurrence and fate of pharmaceuticals in the aquatic environment is recognized as one of the emerging issues in environmental chemistry and as a matter of public concern. Existing data tend to focus on the concentrations of pharmaceuticals in the aqueous phase, with limited studies on their concentrations in particulate phase such as sediments. Furthermore, current water quality monitoring does not differentiate between soluble and colloidal phases in water samples, hindering our understanding of the bioavailability and bioaccumulation of pharmaceuticals in aquatic organisms. In this study, an investigation was conducted into the concentrations and phase association (soluble, colloidal, suspended particulate matter or SPM) of selected pharmaceuticals (propranolol, sulfamethoxazole, meberverine, thioridazine, carbamazepine, tamoxifen, indomethacine, diclofenac, and meclofenamic acid) in river water, effluents from sewage treatment works (STW), and groundwater in the UK
Mathieson, L 2010, 'The parameterized complexity of editing graphs for bounded degeneracy', Theoretical Computer Science, vol. 411, no. 34-36, pp. 3181-3187.
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McGloin, D & Reid, JP 2010, 'Forty Years of Optical Manipulation', Optics and Photonics News, vol. 21, no. 3, pp. 20-20.
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The advancements in the optical technologies that enable researchers to make significant developments in the field of physics and biology have been discussed. One of the researchers, Arthur Ashkin, has demonstrated trapping using two counter-propagating beams and using a single beam that was obtained by propagating a beam vertically and using gravity to balance the radiation pressure force. The optical tweezers system has been introduced that uses a laser source passed through two telescope systems, the first to expand the beam to slightly overfill the back aperture of the microscope objective and the second to make the beam at the microscope conjugate with the beam on a steering mirror. The two multibeam techniques that are widely used includes scanning and holographic. The scanning techniques involve a beam that is scanned very rapidly across the particles of interest. The holographic techniques involve an input Gaussian beam, which has its phase modulated into that of target intensity at the focal plane of the microscope objective.
McGregor, C & Eklund, JM 2010, 'Next generation remote critical care through service-oriented architectures: challenges and opportunities', Service Oriented Computing and Applications, vol. 4, no. 1, pp. 33-43.
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Health care providers and governments are under pressure to maintain and improve the quality of care to an increasing volume of critical care patients at either end of the life cycle, namely premature and ill term babies together with the elderly. The provision of a service of critical care utilizing real time service-oriented architectures has the potential to enable clinicians to be supported in the care of a greater number patients that are, perhaps more importantly, located elsewhere to their intensive care units. This paper presents a review of recent research in the application of computing and IT to support the service of critical care and determines the trends and challenges for the application of real time service-oriented architectures within the domain. It then presents some case study-based research on the design of a service-oriented architecture-based approach to support two aspects of critical care namely elderly care and neonatal intensive care to provide further context to trends and opportunities. © 2010 Springer-Verlag London Limited.
Mellor, D, Prieto, E, Mathieson, L & Moscato, P 2010, 'A Kernelisation Approach for Multiple d-Hitting Set and Its Application in Optimal Multi-Drug Therapeutic Combinations', PLoS ONE, vol. 5, no. 10, pp. e13055-e13055.
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Meng, X, Wang, S, Qiu, J, Zhu, JG & Guo, Y 2010, 'Cogging torque reduction of Bldc motor using level set based topology optimization incorporating with triangular finite element', International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1069-1076.
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Cogging torque in permanentmagnet brushless DC (BLDC) motor causes torque and speed ripples, as well as acoustic noise and vibration, especially in low speed and direct drive applications. In this paper, the stator core shape is optimized by using a level set based topology optimization to reduce cogging torque. The level set method can represent the precise boundary shape of structure and also deal with complex topology changes during the optimization process. Different from the conventional rectangular meshes, the level set technique based triangular finite element meshes are presented in this paper to deal with irregular domains. The comparison of cogging torque calculated before and after topology optimization verifies the advantages of the level set topology optimization based on triangular meshes.
Meng, X, Wang, S, Qiu, J, Zhu, JG, Wang, Y, Guo, Y, Liu, D & Xu, W 2010, 'Dynamic Multilevel Optimization of Machine Design and Control Parameters Based on Correlation Analysis', IEEE Transactions on Magnetics, vol. 46, no. 8, pp. 2779-2782.
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In this paper, a multilevel optimization method is proposed for a motor drive system including a surface-mounted permanent magnet synchronous machine (SPMSM), the converter/inverter, and the control schemes. First, the multilevel optimization is described by using the problem matrix which may be used to allocate the design variables on different levels. The parameters in the problem matrix are deduced by using correlation analysis. Second, the architecture and implementation of multilevel genetic algorithm (MLGA) are carried out. As one of the advantages of MLGA, the dynamic adjustment strategy of GA operators is utilized to improve the optimal performance. The algorithm is then applied to a three-level optimization problem in which the optimization of SPMSM design and the control parameters of drive are considered in different levels. Finally, some results and discussions about the application of the proposed algorithm are presented.
Merigó Lindahl, JM & Casanovas Ramón, M 2010, 'The generalized hybrid averaging operator and its application in decision making', Revista de Metodos Cuantitativos para la Economia y la Empresa, vol. 9, no. 1, pp. 69-84.
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We present the generalized hybrid averaging (GHA) operator. It is a new aggregation operator that generalizes the hybrid averaging (HA) operator by using the generalized mean. Thus, we are able to generalize a wide range of mean operators such as the HA, the hybrid geometric averaging (HGA), the hybrid quadratic averaging (HQA), the generalized ordered weighted averaging (GOWA) operator and the weighted generalized mean (WGM). A key feature in this aggregation operator is that it is able to deal with the weighted average and the ordered weighted averaging (OWA) operator in the same formulation. We further generalize the GHA by using quasi-arithmetic means obtaining the quasi-arithmetic hybrid averaging (Quasi-HA) operator. We conclude the paper with an example of the new approach in a financial decision making problem.
Merigó, JM 2010, 'Fuzzy decision making with immediate probabilities', Computers & Industrial Engineering, vol. 58, no. 4, pp. 651-657.
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Merigo, JM & Casanovas, M 2010, 'Induced and heavy aggregation operators with distance measures', Journal of Systems Engineering and Electronics, vol. 21, no. 3, pp. 431-439.
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Merigó, JM & Casanovas, M 2010, 'Decision making with distance measures and linguistic aggregation 0operators', International Journal of Fuzzy Systems, vol. 12, no. 3, pp. 190-198.
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We present a new decision making model with distance measures by using linguistic aggregation operators. We introduce a new aggregation operator called the linguistic ordered weighted averaging distance (LOWAD) operator. This aggregation operator provides a parameterized family of blinguistic aggregation operators that includes the maximum distance, the minimum distance, the linguistic normalized Hamming distance and the linguistic weighted Hamming distance, among others. We study some of its main properties and different families of LOWAD operators such as the median-LOWAD, the Olympic-LOWAD, the S-LOWAD and the centered-LOWAD. We also develop an application of the new approach in a decision making problem concerning human resource management. © 2010 TFSA.
Merigó, JM & Casanovas, M 2010, 'Fuzzy generalized hybrid aggregation operators and its application in fuzzy decision making', International Journal of Fuzzy Systems, vol. 12, no. 1, pp. 15-24.
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The hybrid averaging (HA) is an aggregation operator that uses the weighted average (WA) and the ordered weighted averaging (OWA) operator in the same formulation. In this paper, we introduce several generalizations of the HA operator by using generalized and quasi-arithmetic means, fuzzy numbers and order inducing variables in the reordering step of the aggregation process. We present the fuzzy generalized hybrid averaging (FGHA) operator, the fuzzy induced generalized hybrid averaging (FIGHA) operator, the Quasi-FHA operator and the Quasi-FIHA operator. The main advantage of these operators is that they generalize a wide range of fuzzy aggregation operators that can be used in a wide range of applications such as decision making problems. For example, we could mention the fuzzy induced hybrid averaging (FIHA), the fuzzy weighted generalized mean (FWGM) and the fuzzy induced generalized OWA (FIGOWA). We end the paper with an application of the new approach in a decision making problem. © 2010 TFSA.
Merigó, JM & Casanovas, M 2010, 'THE FUZZY GENERALIZED OWA OPERATOR AND ITS APPLICATION IN STRATEGIC DECISION MAKING', Cybernetics and Systems, vol. 41, no. 5, pp. 359-370.
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Merigó, JM & Gil-Lafuente, AM 2010, 'New decision-making techniques and their application in the selection of financial products', Information Sciences, vol. 180, no. 11, pp. 2085-2094.
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MERIGÓ, JM, CASANOVAS, M & MARTÍNEZ, L 2010, 'LINGUISTIC AGGREGATION OPERATORS FOR LINGUISTIC DECISION MAKING BASED ON THE DEMPSTER-SHAFER THEORY OF EVIDENCE', International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, vol. 18, no. 03, pp. 287-304.
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In this paper, we develop a new approach for decision making with Dempster-Shafer theory of evidence by using linguistic information. We suggest the use of different types of linguistic aggregation operators in the model. We then obtain as a result, the belief structure — linguistic ordered weighted averaging (BS-LOWA), the BS — linguistic hybrid averaging (BS-LHA) and a wide range of particular cases. Some of their main properties are studied. Finally, we provide an illustrative example that shows the different results obtained by using different types of linguistic aggregation operators in the new approach.
Merigó, JM, Gil Lafuente, AM & Barcellos, L 2010, 'UNCERTAIN INDUCED GENERALIZED AGGREGATION OPERATORS AND ITS APPLICATION IN THE THEORY OF EXPERTONS', FUZZY ECONOMIC REVIEW, vol. 15, no. 02, pp. 25-42.
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We present a new approach that unifies the induced generalized ordered weighted averaging (IGOWA) operator with the weighted average (WA) when the available information is uncertain and can be assessed with interval numbers. We call it the uncertain induced generalized ordered weighted averaging - weighted averaging (UIGOWAWA) operator. The main advantage of this approach is that it unifies the IOWA and the WA taking into account the degree of importance of each case in the formulation and considering that the information is given with interval numbers. We also study different properties of the UIGOWAWA operator and different particular cases. We also analyze the applicability of the new approach and we see that it is possible to develop a wide range of applications because all the previous studies that use the WA can be revised and extended with this new approach. We focus on an application in decision making with the theory of expertons. Thus, we are able to assess group decision making problems in a more complete way.
Miliszewska, I & Sztendur, E 2010, 'Interest in ICT Studies and Careers: Perspectives of Secondary School Female Students from Low Socioeconomic Backgrounds', Interdisciplinary Journal of Information, Knowledge, and Management, vol. 5, pp. 237-260.
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The under-representation of females in information and communication technology (ICT) fields of study and careers continues to attract considerable attention. This article discusses findings of a research study that investigated interest in ICT studies and careers among female secondary school students. The investigation focused on girls from schools in the Western suburbs of Melbourne, Australia, home to families with low socio-economic status and students exposed to "educational disadvantage." The article outlines the demographic background of the participating girls, their experiences with ICT, self-efficacy of ICT skills, and their preferences for future studies and careers in ICT. It also analyzes factors that might have influenced the girls' attitudes towards ICT studies and careers, including their ethnic background, exposure to ICT at school and home, and perceptions of ICT. The article concludes with suggestions for future research.
Milton, J & Kennedy, PJ 2010, 'Static and Dynamic Selection Thresholds Governing the Accumulation of Information in Genetic Algorithms Using Ranked Populations', EVOLUTIONARY COMPUTATION, vol. 18, no. 2, pp. 229-254.
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Mutation applied indiscriminately across a population has, on average, a detrimental effect on the accumulation of solution alleles within the population and is usually beneficial only when targeted at individuals with few solution alleles. Many common selection techniques can delete individuals with more solution alleles than are easily recovered by mutation. The paper identifies static and dynamic selection thresholds governing accumulation of information in a genetic algorithm (GA). When individuals are ranked by fitness, there exists a dynamic threshold defined by the solution density of surviving individuals and a lower static threshold defined by the solution density of the information source used for mutation. Replacing individuals ranked below the static threshold with randomly generated individuals avoids the need for mutation while maintaining diversity in the population with a consequent improvement in population fitness. By replacing individuals ranked between the thresholds with randomly selected individuals from above the dynamic threshold, population fitness improves dramatically. We model the dynamic behavior of GAs using these thresholds and demonstrate their effectiveness by simulation and benchmark problems.
Monk, CE, Hutvagner, G & Arthur, JSC 2010, 'Regulation of miRNA Transcription in Macrophages in Response to Candida albicans', PLoS ONE, vol. 5, no. 10, pp. e13669-e13669.
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Macrophages detect pathogens via pattern recognition receptors (PRRs), which trigger several intracellular signaling cascades including the MAPK and NFkB pathways. These in turn mediate the up-regulation of pro-inflammatory cytokines that are essential t
Morik, K, Deuse, J, Faber, V & Bohnen, F 2010, 'Data Mining in Sensordaten verketteter Prozesse', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 105, no. 1-2, pp. 106-110.
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Kurzfassung
Das Prinzip der autonomen Automation wird als Methode der Lean Production zur Kostensenkung durch Vermeidung von Ausschuss und Nacharbeit genutzt. Während in Arbeitssystemen geringer Komplexität integrierte automatische Qualitätsprüfungen bereits erfolgreich zum Einsatz kommen, ist eine Übertragung auf komplexe, verkettete Arbeitssysteme derzeit nicht vollständig umsetzbar. In diesem Beitrag wird am Beispiel eines Walzprozesses ein auf maschinellen Lernverfahren basierender Ansatz zur Realisierung der autonomen Automation in komplexen, verketteten Produktionsprozessen vorgestellt. Hierbei werden verschiedene Herausforderungen, welche durch produktionstechnische Restriktionen entstehen, aufgezeigt und die Notwendigkeit von Weiterentwicklungen bestehender Lernverfahren unter der Zielsetzung der Einbindung in die Produktion dargelegt.
Morik, K, Stolpe, M, Deuse, J, Bohnen, F & Reichel, U 2010, 'Forecast model for the determination of product characteristics: Application of data mining procedures in the rolling mill', Stahl und Eisen, vol. 130, no. 10, pp. 80-82.
Morik, K, Stolpe, M, Deuse, J, Bohnen, F & Reichel, U 2010, 'Use of data-mining techniques in the rolling work.', STAHL UND EISEN, vol. 130, no. 10, pp. 80-82.
Mousavi, SM, Alavi, AH, Gandomi, AH, Esmaeili, MA & Gandomi, M 2010, 'A data mining approach to compressive strength of CFRP-confined concrete cylinders', Structural Engineering and Mechanics, vol. 36, no. 6, pp. 759-783.
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Mousavi, SM, Gandomi, AH, Alavi, AH & Vesalimahmood, M 2010, 'Modeling of compressive strength of HPC mixes using a combined algorithm of genetic programming and orthogonal least squares', Structural Engineering and Mechanics, vol. 36, no. 2, pp. 225-241.
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Mujumdar, SS, Mastud, SA, Singh, RK & Joshi, SS 2010, 'Experimental characterization of the reverse micro-electrodischarge machining process for fabrication of high-aspect-ratio micro-rod arrays', Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 224, no. 5, pp. 777-794.
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High-aspect-ratio arrayed structures find application in the creation of deep blind holes used in ink-jet nozzles, air-bearings, etc. This paper focuses on the use of reverse micro-electric discharge machining (micro-EDM), to generate high-aspect-ratio micro-rod arrays. A micro-rod of 60 μm in diameter and a high-aspect-ratio of 33 is successfully fabricated using the process. An L8 orthogonal array is used to study the effect of gap voltage, capacitance, threshold, and feed rate on the process response variables. The measured process responses are dimensional accuracy (measured at various locations along the length of the micro-rod), zero error length, and surface roughness. Furthermore, the surface morphology and chemical composition at the root and tip of the generated structure are studied. Analysis of variance studies show that the statistically significant factors that influence response variables are the gap voltage and capacitance. The gap voltage is identified as the single most important factor governing the accuracy of the micro-rods at almost all locations. Analysis of surface morphology reveals that there are more craters at the tip of machined rods whereas, the area around the base is relatively smooth. Value of surface roughness varies from 1.6 μm Ra to 6.3 μm Ra under different experimental conditions. A variation in chemical composition is observed along the length of the rod. Plausible explanations are presented for the various phenomena observed during the reverse micro-EDM process.
Munro, WJ, Harrison, KA, Stephens, AM, Devitt, SJ & Nemoto, K 2010, 'From quantum multiplexing to high-performance quantum networking', Nature Photonics, vol. 4, no. 11, pp. 792-796.
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Myles, A, Pietroni, N, Kovacs, D & Zorin, D 2010, 'Feature-aligned T-meshes', ACM Transactions on Graphics, vol. 29, no. 4, pp. 1-11.
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High-order and regularly sampled surface representations are more efficient and compact than general meshes and considerably simplify many geometric modeling and processing algorithms. A number of recent algorithms for conversion of arbitrary meshes to regularly sampled form (typically quadrangulation) aim to align the resulting mesh with feature lines of the geometry. While resulting in a substantial improvement in mesh quality, feature alignment makes it difficult to obtain coarse regular patch partitions of the mesh.
In this paper, we propose an approach to constructing patch layouts consisting of small numbers of quadrilateral patches while maintaining good feature alignment. To achieve this, we use quadrilateral T-meshes, for which the intersection of two faces may not be the whole edge or vertex, but a part of an edge. T-meshes offer more flexibility for reduction of the number of patches and vertices in a base domain while maintaining alignment with geometric features. At the same time, T-meshes retain many desirable features of quadrangulations, allowing construction of high-order representations, easy packing of regularly sampled geometric data into textures, as well as supporting different types of discretizations for physical simulation.
Na, SH, Shon, HK, Kim, JB, Park, HJ, Cho, DL, El Saliby, I & Kim, J-H 2010, 'Recycling of excess sludge using titanium tetrachloride (TiCl4) as a flocculant aid with alkaline-thermal hydrolysis', JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 16, no. 1, pp. 96-100.
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The highly strengthened treatment and disposal of excess sludge based on economic and environmental regulation factors is one of the important issues to be dealt with in the activated sludge process. In this study, the reduction and recycling technology of excess sludge were investigated for the aim of achieving a zero emission of excess sludge produced from the activated sludge process using titanium tetrachloride (TiCl4) as a flocculant aid with alkaline-thermal hydrolysis. Alkaline-thermal hydrolysis of excess sludge was obtained 73% and 40% reduction rate at pH 13 (60 8 °C) and pH 11 (60 8 °C), respectively. Flocculation was carried out using a Ti-salt flocculant and the collected sludge was dewatered and incinerated at 600 °C to produce TiO2 nanoparticles. The amount of total suspended solids and volatile suspended solids was significantly decreased with pH increase. The optimal dose of Ti-salt flocculation aid to improve dewatering ability of sludge breakage was 23.95 Ti-mg lâ1. Also, in the batch culture, the supernatant after flocculation and the organic matter released from the lysed sludge were found to be useful as a source of energy for the growth of microorganisms during the aerobic operations period. TiO2 produced from Ti-salt flocculation of excess sludge (TES) was characterized by X-ray diffraction, scanning electron microscopy/energy dispersive X-ray and photocatalytic activity.
Nasser, A, Clément, A, Laurens, S & Castel, A 2010, 'Influence of steel–concrete interface condition on galvanic corrosion currents in carbonated concrete', Corrosion Science, vol. 52, no. 9, pp. 2878-2890.
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Nghiem, LD 2010, 'Influence of feed water chemistry on the removal of ionisable and neutral trace organics by a loose nanofiltration membrane', Membrane Water Treatment, vol. 1, no. 2, pp. 93-101.
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Nghiem, LD, Coleman, PJ & Espendiller, C 2010, 'Mechanisms underlying the effects of membrane fouling on the nanofiltration of trace organic contaminants', Desalination, vol. 250, no. 2, pp. 682-687.
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Nguyen Tran, Hoang Tuan & Ha Nguyen 2010, 'Superimposed training designs for spatially correlated MIMO-OFDM systems', IEEE Transactions on Wireless Communications, vol. 9, no. 3, pp. 876-880.
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Only one asymptotic training design for a special case of channel correlation was proposed in the literature for spatially correlated multiple-input multiple-output with orthogonal frequency-division multiplexing (MIMO-OFDM) systems. To fill this gap, th
Nguyen, HB, Banta, DP, Stewart, G, Kim, T, Bansal, R, Anholm, J, Wittlake, WA & Corbett, SW 2010, 'Cardiac index measurements by transcutaneous Doppler ultrasound and transthoracic echocardiography in adult and pediatric emergency patients', Journal of Clinical Monitoring and Computing, vol. 24, no. 3, pp. 237-247.
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Non-invasive hemodynamic monitoring may facilitate resuscitation in critically ill patients. Validation studies examining a transcutaneous Doppler ultrasound technology, USCOM-1A, using pulmonary artery catheter as the reference standard showed varying results. In this study, we compared non-invasive cardiac index (CI) measurements by USCOM-1A with transthoracic echocardiography (TTE). Methods. This study was a prospective, observational cohort study at a university tertiary-care emergency department, enrolling a convenience sample of adult and pediatric patients. Paired measures of CI, stroke volume index (SVI), aortic outflow tract diameter (OTD), velocity time integral (VTI) were obtained using USCOM-1A and TTE. Pearson's correlation and Bland-Altman analyses were performed. Results. One-hundred and sixteen subjects were enrolled, with obtainable USCOM-1A CI measurements for 99 subjects (55 adults age 50±20 years and 44 children age 11±4 years) in the final analysis. Cardiac, gastrointestinal and infectious illnesses were the most common presenting diagnostic categories. The reference standard TTE measurements of CI, SVI, OTD, and VTI in all subjects were 3.08±1.18 L/min/m2, 37.10±10.91 mL/m2, 1.92±0.36 cm, and 20.36±4.53 cm, respectively. Intra-operator reliability of USCOM-1A CI measurements showed a correlation coefficient of r = 0.79, with 11±22% difference between repeated measures. The bias and limits of agreement of USCOM-1A compared to TTE CI were 0.58 (-1.48 to 2.63) L/min/m2. The percent difference in CI measurements with USCOM-1A was 31±28% relative to TTE measurements. Conclusions. The USCOM-1A hemodynamic monitoring technology showed poor correlation and agreement to standard transthoracic echocardiography measures of cardiac function. The utility of USCOM-1A in the management of critically ill patients remains to be determined. © Springer 2010.
Nguyen, HB, Loomba, M, Yang, JJ, Jacobsen, G, Shah, K, Otero, RM, Suarez, A, Parekh, H, Jaehne, A & Rivers, EP 2010, 'Early lactate clearance is associated with biomarkers of inflammation, coagulation, apoptosis, organ dysfunction and mortality in severe sepsis and septic shock', Journal of Inflammation, vol. 7, no. 1, pp. 6-6.
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Background. Lactate clearance, a surrogate for the magnitude and duration of global tissue hypoxia, is used diagnostically, therapeutically and prognostically. This study examined the association of early lactate clearance with selected inflammatory, coagulation, apoptosis response biomarkers and organ dysfunction scores in severe sepsis and septic shock. Methods. Measurements of serum arterial lactate, biomarkers (interleukin-1 receptor antagonist, interleukin-6, interleukin-8, interleukin-10, tumor necrosis factor-alpha, intercellular adhesion molecule-1, high mobility group box-1, D-Dimer and caspase-3), and organ dysfunction scores (Acute Physiology and Chronic Health Evaluation II, Simplified Acute Physiology Score II, Multiple Organ Dysfunction Score, and Sequential Organ Failure Assessment) were obtained in conjunction with a prospective, randomized study examining early goal-directed therapy in severe sepsis and septic shock patients presenting to the emergency department (ED). Lactate clearance was defined as the percent change in lactate levels after six hours from a baseline measurement in the ED. Results. Two-hundred and twenty patients, age 65.0 17.1 years, were examined, with an overall lactate clearance of 35.5 43.1% and in-hospital mortality rate of 35.0%. Patients were divided into four quartiles of lactate clearance, -24.3 42.3, 30.1 7.5, 53.4 6.6, and 75.1 7.1%, respectively (p < 0.01). The mean levels of all biomarkers and organ dysfunction scores over 72 hours were significantly lower with higher lactate clearance quartiles (p < 0.01). There was a significant decreased in-hospital, 28-day, and 60-day mortality in the higher lactate clearance quartiles (p < 0.01). Conclusions. Early lactate clearance as a surrogate for the resolution of global tissue hypoxia is significantly associated with decreased levels of biomarkers, improvement in organ dysfunction and outcome in severe sepsis and septic shock. © 2010 Nguyen et al; licensee BioMed Centra...
Nguyen, HB, Oh, J, Otero, RM, Burroughs, K, Wittlake, WA & Corbett, SW 2010, 'Standardization of Severe Sepsis Management: A Survey of Methodologies in Academic and Community Settings', The Journal of Emergency Medicine, vol. 38, no. 2, pp. 122-132.
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Background: Evidence-based therapies for severe sepsis include early antibiotics, early goal-directed therapy, corticosteroids, recombinant human activated protein C, glucose control, and lung protective strategies. Objective: The objective of this study was to analyze methods, challenges, and outcomes observed by hospitals that implemented a hospital-wide sepsis management protocol incorporating evidence-based therapies. Methods: In a cross-sectional multi-center telephone survey over a 4-month period, clinicians (participants) responsible for developing a hospital sepsis protocol were questioned regarding its development and outcomes. Results: Participants completing surveys represented 40 hospitals (20 academic and 20 community). Twenty-seven percent of protocol champions were Emergency physicians or nurses. Sixty-three percent reported protocol development time of 6-12 months. Eighty-eight percent of participants reported protocol initiation in the Emergency Department. Three participants reported hiring a nurse educator to implement the protocol. Ninety-five percent of participants measure lactate as part of patient screening. Protocol therapies reported included early antibiotics (98%), early goal directed-therapy (EGDT) (98%), corticosteroids (80%), and activated protein C (73%). Contributions to success included having a protocol champion (85%) and sepsis education program (65%). Twenty-one participants had recorded patient-level data, totaling 2319 protocol patients, compared to 1719 non-protocol patients, with in-hospital mortality of 23% and 44%, respectively. Conclusions: Implementation of a sepsis management protocol incorporating evidence-based therapies can be accomplished in both academic and community hospitals, with minimal additional staffing. The presence of a protocol champion and education program is crucial to success, and may result in improved patient outcome. © 2010 Elsevier Inc. All rights reserved.
Nguyen, TT, Guo, W, Ngo, HH & Vigneswaran, S 2010, 'A new combined inorganic-organic flocculant (CIOF) as a performance enhancer for aerated submerged membrane bioreactor', SEPARATION AND PURIFICATION TECHNOLOGY, vol. 75, no. 2, pp. 204-209.
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In this study, a new combined inorganicorganic flocculant (CIOF) of FeCl3 and membrane performance enhancer (MPE50) was prepared and added to an aerated submerged membrane bioreactor (SMBR). The effects of CIOF on the performance of an aerated submerged membrane bioreactor (SMBR) were evaluated. The results indicated that the SMBR with CIOF addition could remove almost 100% total phosphate while eliminating over 90% ammonia (NH4-N) and dissolved organic carbon (DOC) during an 80-day of operation. The respiration tests revealed that the specific oxygen uptake rate (SOUR) was stable around 1.52.0mgO2/gMLVSS h. The sludge volume index (SVI) of less than 100 mL/g during the operation showed the importance of CIOF on the improvement of settling properties of the sludge. Soluble carbohydrate concentration was also well correlated with DOC of the supernatant. CIOF was successful in the reduction of fouling of membrane as the membrane was only chemically cleaned after 53 days of operation.
Nguyen, TT, Ngo, HH, Guo, W, Johnston, A & Listowski, A 2010, 'Effects of sponge size and type on the performance of an up-flow sponge bioreactor in primary treated sewage effluent treatment', BIORESOURCE TECHNOLOGY, vol. 101, no. 5, pp. 1416-1420.
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The effects of polyurethane sponge size and type on the performance of an up-flow sponge bioreactor were studied using different sponge cube sizes (1 Ã 1 Ã 1 cm, 2 Ã 2 Ã 2 cm and 3 Ã 3 Ã 3 cm) and types of sponge (S28-30/45R, S28-30/60R, S28-30/80R and S28-30/90R). The reactors were operated under anaerobic conditions in an early stage and an aerobic condition in a latter stage. The results indicate that there was no significant difference in the organic and nutrient removal rates between sponge types. The medium size sponge (2 Ã 2 Ã 2 cm) had the best performance in terms of both biomass growth and pollutants removal. Under anaerobic condition, the COD, TN and TP removal efficiencies were up to 70%, 45% and 55%, respectively, and significantly improved under aerobic conditions (e.g. >90% TOC, 95% COD, 65% TN and 90% TP). The external biomass grew faster under anaerobic conditions while internal biomass was dominant under aerobic condition.
Nguyen, TV, Vigneswaran, S, Ngo, HH & Kandasamy, J 2010, 'Arsenic removal by iron oxide coated sponge: Experimental performance and mathematical models', JOURNAL OF HAZARDOUS MATERIALS, vol. 182, no. 1-3, pp. 723-729.
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Millions of people worldwide are at risk from the presence of arsenic in groundwater. In this study, adsorption equilibrium and long term experiments were carried out to evaluate the performance of iron oxide coated sponge (IOCSp) in arsenic removal. It was found that maximum adsorption capacity of IOCSp for As(III) and As(V) calculated by Sips isotherm was 4.2 and 4.6 mg/g of IOCSp, respectively. A filter packed with small amount of 25 g IOCSp maintained a consistent arsenic removal efficiency of 95% from synthetic solution containing arsenic concentration of as high as 1000g/L. This produced a throughput volume of 153 and 178 L of water containing As III) and As(V), respectively before any need for regeneration or disposal of IOCSp. IOCSp could be regenerated by washing it with NaOH solution. The dynamic (column) adsorption kinetics were successfully predicted by the Thomas and Nikolaidis modified models.
Ni, B, Xie, W, Liu, S, Yu, H, Gan, Y, Zhou, J & Hao, E 2010, 'Development of a mechanistic model for biological nutrient removal activated sludge systems and application to a full‐scale WWTP', AIChE Journal, vol. 56, no. 6, pp. 1626-1638.
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Ni, B-J, Rittmann, BE & Yu, H-Q 2010, 'Evaluation on the impacts of predators on biomass components and oxygen uptake in sequencing batch reactor and continuous systems', Water Research, vol. 44, no. 15, pp. 4616-4622.
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Ni, B-J, Rittmann, BE & Yu, H-Q 2010, 'Modeling predation processes in activated sludge', Biotechnology and Bioengineering, vol. 105, no. 6, pp. n/a-n/a.
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Ni, B-J, Rittmann, BE, Fang, F, Xu, J & Yu, H-Q 2010, 'Long-term formation of microbial products in a sequencing batch reactor', Water Research, vol. 44, no. 13, pp. 3787-3796.
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Ni, B-J, Sheng, G-P, Li, X-Y & Yu, H-Q 2010, 'Quantitative Simulation of the Granulation Process of Activated Sludge for Wastewater Treatment', Industrial & Engineering Chemistry Research, vol. 49, no. 6, pp. 2864-2873.
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Ni, B-J, Zeng, RJ, Fang, F, Xie, W-M, Sheng, G-P & Yu, H-Q 2010, 'Fractionating soluble microbial products in the activated sludge process', Water Research, vol. 44, no. 7, pp. 2292-2302.
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Niebecker, K, Eager, D & Moulton, B 2010, 'Collaborative and cross‐company project management within the automotive industry using the Balanced Scorecard', International Journal of Managing Projects in Business, vol. 3, no. 2, pp. 328-337.
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PurposeThis paper aims to summarize the scope, methodology, and main findings of a doctoral thesis about cross‐company project management in the automotive industry. The concept of the collaborative project scorecard (CPS) is described and the results of its application to a project are summarized and discussed.Design/methodology/approachThe project adopted an action research approach which included a series of interviews, surveys, workshops, and a case study where the developed project management concept was tested and evaluated in a real project setting.FindingsThe concept of the CPS supports the alignment of project goals with business strategies, improves transparency in networked project organizations with respect to roles, responsibilities, goal achievement, stakeholder identification, and performance assessment. Project goals is not only based on and measured by hard facts but also on soft facts such as trust and employee satisfaction. The balanced choice of common strategic project goals improves the achievement of long‐term strategies in a project partnership.Practical implicationsDifficulties in defining appropriate indicators are identified, and resistance to change can need to be overcome so that every project member has a clear understanding of the concept's benefits. Legal issues (contract) may need to be discussed when the concept is used by a cross‐corporate project team. The method helps the delivery of performance to become more clearly measurable.Originality/valueThe project gives insight into a ne...
Nikodem, J, Klempous, R, Nikodem, M, Woda, M & Chaczko, Z 2010, 'Directed Cooperation in Multihop Wireless Sensors Network', International Journal of Electronics and Telecommunications, vol. 56, no. 1, pp. 7-12.
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Directed Cooperation in Multihop Wireless Sensors NetworkThis paper proposes a relational abstraction for Wireless Sensors Network where node can identify its neighbors around it. Because of limited radio link range only some of nodes have a direct contact with the base station and transmission is carried out in a multihop way so information is send from one node to another towards the BS. We propose a relation π that represents cooperation between nodes and takes advantages of topological properties of the network. Based on the hop-distance from the BS any nodekcan determine a setN<(k) that consists of nodes to which/kshould send messages in order to retain a data-flow direction towards the BS.
Okour, Y, Shon, HK, El Saliby, IJ, Naidu, R, Kim, JB & Kim, J-H 2010, 'Preparation and characterisation of titanium dioxide (TiO2) and thiourea-doped titanate nanotubes prepared from wastewater flocculated sludge', BIORESOURCE TECHNOLOGY, vol. 101, no. 5, pp. 1453-1458.
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In this study, titanium (Ti), ferric (Fe) and aluminum (Al) salt flocculants were compared for their efficiency in treating wastewater collected from Sydney Olympic Park wastewater treatment plant by following the jar test procedure. Produced sludge from Ti-salt flocculation was dried and titanium dioxide (TiO2) nanoparticles were generated after the incineration of sludge produced from the Ti-salt flocculation of wastewater. Later on, titanate nanotubes were synthesized after TiO2 nanoparticles were hydrothermally treated with 10 N NaOH solution at 130 °C for 24 h. Titanate nanotubes were either acid or deionised water-washed, while thiourea-doping was employed to produce visible light-responsive nanotubes. Wastewater flocculation using Ti-salt was found to be as efficient as Fe and Al flocculation in terms of turbidity and DOC removal. XRD results showed that the anatase structure was predominant for TiO2 nanoparticles, while thiourea-doped titanate nanotubes only indicated anatase structure with an increased crystallinity after being crystallized at 600 °C. The photocatalytic activity of all photocatalysts was evaluated using the photooxidation of acetaldehyde. Thiourea-doped nanotubes showed a greater photocatalytic activity than as-prepared TiO2 nanoparticles, deionised water-washed, acid-washed titanate nanotubes and P25 under UV and visible light irradiation.
Oliveira, DAF & Indraratna, B 2010, 'Comparison between Models of Rock Discontinuity Strength and Deformation', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 6, pp. 864-874.
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Oliveira, RA, Cook, K, Canning, J & Pohl, AAP 2010, 'Bragg grating writing in acoustically excited optical fiber', APPLIED PHYSICS LETTERS, vol. 97, no. 4.
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Oliveira, RA, Jr, NPT, Pereira, JT, Canning, J & Pohl, AAP 2010, 'Vibration mode analysis of a silica horn-fiber Bragg grating device', OPTICS COMMUNICATIONS, vol. 283, no. 7, pp. 1296-1302.
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Orr, P, Canning, J, Stevenson, M & Niewczas, P 2010, 'Automatable fabrication of dispersion-tailored Bragg gratings for tunable narrowband delays', ELECTRONICS LETTERS, vol. 46, no. 18, pp. 1283-1284.
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Orr, P, Niewczas, P, Stevenson, M & Canning, J 2010, 'Compound Phase-Shifted Fiber Bragg Structures as Intrinsic Magnetic Field Sensors', JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 28, no. 18, pp. 2667-2673.
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Paisitkriangkrai, S, Shen, C & Zhang, J 2010, 'Incremental Training of a Detector Using Online Sparse Eigen-decomposition', IEEE Transactions On Image Processing, vol. 20, no. 1, pp. 213-226.
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The ability to efficiently and accurately detect objects plays a very crucial
role for many computer vision tasks. Recently, offline object detectors have
shown a tremendous success. However, one major drawback of offline techniques
is that a complete set of training data has to be collected beforehand. In
addition, once learned, an offline detector can not make use of newly arriving
data. To alleviate these drawbacks, online learning has been adopted with the
following objectives: (1) the technique should be computationally and storage
efficient; (2) the updated classifier must maintain its high classification
accuracy. In this paper, we propose an effective and efficient framework for
learning an adaptive online greedy sparse linear discriminant analysis (GSLDA)
model. Unlike many existing online boosting detectors, which usually apply
exponential or logistic loss, our online algorithm makes use of LDA's learning
criterion that not only aims to maximize the class-separation criterion but
also incorporates the asymmetrical property of training data distributions. We
provide a better alternative for online boosting algorithms in the context of
training a visual object detector. We demonstrate the robustness and efficiency
of our methods on handwriting digit and face data sets. Our results confirm
that object detection tasks benefit significantly when trained in an online
manner.
Pal, NR & Lin, C-T 2010, 'Editorial - A message from Nikhil R. Pal, Editor-in-chief', IEEE Transactions on Fuzzy Systems, vol. 18, no. 6, pp. 1025-1026.
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Pampanin, DM, Ravagnan, E, Apeland, S, Aarab, N, Godal, BF, Westerlund, S, Hjermann, DØ, Eftestøl, T, Budka, M, Gabrys, B, Viarengo, A & Barsiene, J 2010, 'The marine environment I.Q. concept', Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 157, pp. S52-S52.
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Pan, H & Yang, Y 2010, 'Combining location and feature information for multimedia retrieval', International Journal of Computer Applications in Technology, vol. 38, no. 1/2/3, pp. 27-27.
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In this paper, we propose a cross-media retrieval method for heterogeneous multimedia data by which the query examples and the returned results can be of different modalities, e.g., to query images by an example of audio clip. Taking multimedia location and content information into consideration, an affinity propagation based clustering approach is proposed to analyse and fuse the information carried by the co-existing multimedia objects so as to learn the semantic correlations among the heterogeneous multimedia data and perform cross-media retrieval. We also propose active learning methods of Relevance Feedback to make the search model more accurate. Copyright © 2010 Inderscience Enterprises Ltd.
Park, KH, Shim, WG, Shon, HK, Lee, SG, Ngo, HH, Vigneswaran, S & Moon, H 2010, 'Adsorption Characteristics of Acetaldehyde on Activated Carbons Prepared from Corn-Based Biomass Precursor', SEPARATION SCIENCE AND TECHNOLOGY, vol. 45, no. 8, pp. 1084-1091.
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The ACs (R-1/2 and R-1/4) having two different textual and chemical properties are prepared from corn-based biomass precursor and evaluated together with a wood-based activated carbon (WAC) at room temperature using a gas chromatograph. The results obtained from the correlation studies indicate that the pore size distribution (below 8A Ë ) and the relatively lower energetic heterogeneity of ACs on acetaldehyde adsorption are considerable factors rather than that of a specific surface area and surface chemistry. The adsorption equilibrium of ACs is well correlated with the Sips equation. The pseudo second-order equation was better in describing the ACsâ adsorption kinetic of acetaldehyde.
Pasha, SA, Hoang Duong Tuan & Ba-Ngu Vo 2010, 'Nonlinear Bayesian Filtering Using the Unscented Linear Fractional Transformation Model', IEEE Transactions on Signal Processing, vol. 58, no. 2, pp. 477-489.
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For nonlinear state space model involving random variables with arbitrary probability distributions, the state estimation given a sequence of observations is based on an appropriate criterion such as the minimum mean square error (MMSE). This leads to li
Patel, M, Lal, S, Kavanagh, D & Rossiter, P 2010, 'Fatigue detection using computer vision', International Journal of Electronics and Telecommunications, vol. 56, no. 4, pp. 457-461.
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Long duration driving is a significant cause of fatigue related accidents of cars, airplanes, trains and other means of transport. This paper presents a design of a detection system which can be used to detect fatigue in drivers. The system is based on computer vision with main focus on eye blink rate. We propose an algorithm for eye detection that is conducted through a process of extracting the face image from the video image followed by evaluating the eye region and then eventually detecting the iris of the eye using the binary image. The advantage of this system is that the algorithm works without any constraint of the background as the face is detected using a skin segmentation technique. The detection performance of this system was tested using video images which were recorded under laboratory conditions. The applicability of the system is discussed in light of fatigue detection for drivers.
Patel, M, Lal, S, Kavanagh, D & Rossiter, P 2010, 'Fatigue Detection Using Computer Vision', International Journal of Electronics and Telecommunications, vol. 56, no. 4, pp. 457-461.
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Fatigue Detection Using Computer VisionLong duration driving is a significant cause of fatigue related accidents of cars, airplanes, trains and other means of transport. This paper presents a design of a detection system which can be used to detect fatigue in drivers. The system is based on computer vision with main focus on eye blink rate. We propose an algorithm for eye detection that is conducted through a process of extracting the face image from the video image followed by evaluating the eye region and then eventually detecting the iris of the eye using the binary image. The advantage of this system is that the algorithm works without any constraint of the background as the face is detected using a skin segmentation technique. The detection performance of this system was tested using video images which were recorded under laboratory conditions. The applicability of the system is discussed in light of fatigue detection for drivers.
Pattinson, HM & Sood, SC 2010, 'Marketers expressing the future: Scenario planning for marketing action', Futures, vol. 42, no. 4, pp. 417-426.
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Thomas Friedman exhorts us to imagine the future [1] - we urge marketers to invent the future, to learn the future faster, and to deliver the future earlier. Marketers are asked to develop scenarios about emerging technologies such as broadband wireless
Peng Jin & Ziolkowski, RW 2010, 'Broadband, Efficient, Electrically Small Metamaterial-Inspired Antennas Facilitated by Active Near-Field Resonant Parasitic Elements', IEEE Transactions on Antennas and Propagation, vol. 58, no. 2, pp. 318-327.
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Peterson, J & Nghiem, LD 2010, 'Selective extraction of cadmium by polymer inclusion membranes containing PVC and Aliquat 336: role base polymer and extractant', International Journal of Environmental Technology and Management, vol. 12, no. 2/3/4, pp. 359-359.
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PVC/Aliquat 336 Polymer Inclusion Membranes (PIMs) synthesised in this study showed excellent extraction selectivity of Cd2+ over Cu 2+. This could be explained by examining the extraction mechanisms of metal cations involving Aliquat 336 and the speciation of such metals in a chloride matrix, which was used in the extraction experiments. There was a good correlation between the content of Aliquat 336 in the membrane and the extraction rate. In addition, results reported here also confirm that variation Molecular Weight (MW) of the base polymer PVC did not exert any discernible influence on the extraction performance of the membranes. © 2010 Inderscience Enterprises Ltd.
Petzelt, D, Busch, F, Schallow, J & Deuse, J 2010, 'Entwicklung einer Referenzplanungssystematik der digitalen Produktentstehung', Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 105, no. 3, pp. 168-172.
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Kurzfassung
Zur Reduzierung von Planungszeit und -kosten sowie zur Steigerung der Produktivität müssen alle Aufgaben der Produktentstehung optimal aufeinander abgestimmt sein. Die erforderliche enge Zusammenarbeit unterschiedlicher Fachdomänen wird jedoch auf Grund zahlreicher Schnittstellenprobleme vielfach nicht erreicht. Die Ursachen hierfür liegen sowohl in organisatorischen als auch in technischen Defiziten, die eine mit allen Partnern abgestimmte Planung verhindern. Gerade die Vernetzung von digitalen und nicht-digitalen Methoden ist bislang in den Unternehmen nur unzureichend realisiert. Um die Durchgängigkeit von Planungsprozessen und die Abstimmung von Planungsteilbereichen zu erhöhen, wird eine domänenübergreifende Referenzplanungssystematik entwickelt.
Pham, TT, Nguyen, HH & Tuan, HD 2010, 'Power Allocation in MMSE Relaying over Frequency-Selective Rayleigh Fading Channels', IEEE Transactions on Communications, vol. 58, no. 11, pp. 3330-3343.
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This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency division multiple-access with frequency-domain equalization technique is employed at b
Pham, TT, Nguyen, HH & Tuan, HD 2010, 'Power Allocation in Orthogonal Wireless Relay Networks With Partial Channel State Information', IEEE Transactions on Signal Processing, vol. 58, no. 2, pp. 869-878.
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Wireless amplify-and-forward relay networks in which the source communicates with the relays and destination in the first phase and the relays forward signals to the destination in the second phase over orthogonal and uncorrelated Rayleigh fading channel
Phat, VN, Ha, QP & Trinh, H 2010, 'Parameter-dependent H-infinity Control for Time-varying Delay Polytopic Systems', JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, vol. 147, no. 1, pp. 58-70.
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This paper addresses the robust stabilization and H infinity control problem for a class of linear polytopic systems with continuously distributed delays. The control objective is to design a robust H infinity controller that satisfies some exponential stability constraints on the closed-loop poles. Using improved parameter-dependent Lyapunov Krasovskii functionals, new delay-dependent conditions for the robust H infinity control are established in terms of linear matrix inequalities.
Phuntsho, S, Dulal, I, Yangden, D, Tenzin, UM, Herat, S, Shon, H & Vigneswaran, S 2010, 'Studying municipal solid waste generation and composition in the urban areas of Bhutan', WASTE MANAGEMENT & RESEARCH, vol. 28, no. 6, pp. 545-551.
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Bhutan lacks the solid waste data which are essential parameters for planning and scheduling of municipal solid waste management (MSWM) systems. The first ever large-scale research survey on solid waste generation and characterization in the urban areas
Pietroni, N, Cignoni, P, Otaduy, MA & Scopigno, R 2010, 'Solid-Texture Synthesis: A Survey.', IEEE Computer Graphics and Applications, vol. 30, no. 4, pp. 74-89.
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Pietroni, N, Tarini, M & Cignoni, P 2010, 'Almost Isometric Mesh Parameterization through Abstract Domains.', IEEE Trans. Vis. Comput. Graph., vol. 16, pp. 621-635.
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Pillai, A, Kale, A, Joshi, S, Naphade, N, Raju, MSVK, Nasrallah, H & Mahadik, SP 2010, 'Decreased BDNF levels in CSF of drug-naive first-episode psychotic subjects: correlation with plasma BDNF and psychopathology', The International Journal of Neuropsychopharmacology, vol. 13, no. 04, pp. 535-535.
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Pradhan, B 2010, 'Application of an advanced fuzzy logic model for landslide susceptibility analysis', International Journal of Computational Intelligence Systems, vol. 3, no. 3, pp. 370-381.
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Pradhan, B 2010, 'Application of an advanced fuzzy logic model for landslide susceptibility analysis', International Journal of Computational Intelligence Systems, vol. 3, no. 3, pp. 370-370.
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The aim of this study is to evaluate the susceptibility of landslides at Klang valley area, Malaysia, using a Geographic Information System (GIS) and remote sensing. Landslide locations were identified in the study area from interpretation of aerial photographs and from field surveys. Topographical and geological data and satellite images were collected, processed, and constructed into a spatial database using GIS and image processing. A data derived model (frequency ratio) and a knowledge-derived model (fuzzy operator) were combined for landslide susceptibility analysis. The nine factors that influence landslide occurrence were extracted from the database and the frequency ratio coefficient for each factor was computed. Using the factors and the identified landslide, the fuzzy membership values were calculated. Then fuzzy algebraic operators were applied to the fuzzy membership values for landslide susceptibility mapping. Finally, the produced map was verified by comparing with existing landslide locations for calculating prediction accuracy. Among the fuzzy operators, in the case in which the gamma operator (λ = 0.8) showed the best accuracy (91%) while the case in which the fuzzy algebraic product was applied showed the worst accuracy (79%).
Pradhan, B 2010, 'Landslide susceptibility mapping of a catchment area using frequency ratio, fuzzy logic and multivariate logistic regression approaches', Journal of the Indian Society of Remote Sensing, vol. 38, no. 2, pp. 301-320.
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Pradhan, B 2010, 'Remote sensing and GIS-based landslide hazard analysis and cross-validation using multivariate logistic regression model on three test areas in Malaysia', Advances in Space Research, vol. 45, no. 10, pp. 1244-1256.
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PRADHAN, B & BUCHROITHNER, MF 2010, 'Comparison and Validation of Landslide Susceptibility Maps Using an Artificial Neural Network Model for Three Test Areas in Malaysia', Environmental and Engineering Geoscience, vol. 16, no. 2, pp. 107-126.
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Pradhan, B & Lee, S 2010, 'Delineation of landslide hazard areas on Penang Island, Malaysia, by using frequency ratio, logistic regression, and artificial neural network models', Environmental Earth Sciences, vol. 60, no. 5, pp. 1037-1054.
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Pradhan, B & Lee, S 2010, 'Landslide susceptibility assessment and factor effect analysis: backpropagation artificial neural networks and their comparison with frequency ratio and bivariate logistic regression modelling', Environmental Modelling & Software, vol. 25, no. 6, pp. 747-759.
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Pradhan, B & Lee, S 2010, 'Regional landslide susceptibility analysis using back-propagation neural network model at Cameron Highland, Malaysia', Landslides, vol. 7, no. 1, pp. 13-30.
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Pradhan, B & Pirasteh, S 2010, 'Introduction of guest editors january 2010 issue', Disaster Advances, vol. 3, no. 1.
Pradhan, B & Youssef, AM 2010, 'Manifestation of remote sensing data and GIS on landslide hazard analysis using spatial-based statistical models', Arabian Journal of Geosciences, vol. 3, no. 3, pp. 319-326.
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Pradhan, B, Lee, S & Buchroithner, MF 2010, 'A GIS-based back-propagation neural network model and its cross-application and validation for landslide susceptibility analyses', Computers, Environment and Urban Systems, vol. 34, no. 3, pp. 216-235.
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Pradhan, B, Lee, S & Buchroithner, MF 2010, 'Remote Sensing and GIS-based Landslide Susceptibility Analysis and its Cross-validation in Three Test Areas Using a Frequency Ratio Model', Photogrammetrie - Fernerkundung - Geoinformation, vol. 2010, no. 1, pp. 17-32.
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Pradhan, B, Oh, H-J & Buchroithner, M 2010, 'Weights-of-evidence model applied to landslide susceptibility mapping in a tropical hilly area', Geomatics, Natural Hazards and Risk, vol. 1, no. 3, pp. 199-223.
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Pradhan, B, Sezer, EA, Gokceoglu, C & Buchroithner, MF 2010, 'Landslide Susceptibility Mapping by Neuro-Fuzzy Approach in a Landslide-Prone Area (Cameron Highlands, Malaysia)', IEEE Transactions on Geoscience and Remote Sensing, vol. 48, no. 12, pp. 4164-4177.
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Pradhan, B, Youssef, A & Varathrajoo, R 2010, 'Approaches for delineating landslide hazard areas using different training sites in an advanced artificial neural network model', Geo-spatial Information Science, vol. 13, no. 2, pp. 93-102.
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Pu, H, Min, H, Qiu, X & Wang, J 2010, 'On the sound field of a vault with two open ends', Applied Acoustics, vol. 71, no. 6, pp. 556-563.
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Pulikkaseril, C, Hanham, SM, Shaw, R, Minasian, RA & Bird, TS 2010, 'Coherence-Controlled mm-Wave Generation Using a Frequency-Shifting Recirculating Delay Line', Journal of Lightwave Technology, vol. 28, no. 7, pp. 1071-1078.
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Qin, P-Y, Guo, YJ & Liang, C-H 2010, 'Effect of Antenna Polarization Diversity on MIMO System Capacity', IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. 9, pp. 1092-1095.
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Qin, P-Y, Weily, AR, Guo, YJ & Liang, C-H 2010, 'Polarization Reconfigurable U-Slot Patch Antenna', IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 58, no. 10, pp. 3383-3388.
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Qin, P-Y, Weily, AR, Guo, YJ, Bird, TS & Liang, C-H 2010, 'Frequency Reconfigurable Quasi-Yagi Folded Dipole Antenna', IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 58, no. 8, pp. 2742-2747.
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Rabbachin, A, Quek, TQS, Pinto, PC, Oppermann, I & Win, MZ 2010, 'Non-Coherent UWB Communication in the Presence of Multiple Narrowband Interferers', IEEE Transactions on Wireless Communications, vol. 9, no. 11, pp. 3365-3379.
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Raja, S, Thomas, PS & Stuart, BH 2010, 'A study of storage conditions and treatments for forensic bone specimens using thermogravimetric analysis', JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol. 99, no. 3, pp. 869-872.
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Bone provides an important source of forensic evidence. The storage conditions of bone have been recognised as a factor in maintaining the integrity of such evidence. Thermogravimetric analysis (TG) has been employed to examine the effects of storage environments and preparation methods on the structural properties of pig bones. A comparison of oven and freeze drying has been made to study the effect of storage conditions. A comparison has also been made of ground bone specimens with cut specimens. Freeze-dried hand ground specimens provided the most consistent results and, thus, this is the recommended method of preparation of bone specimens for TG analysis.
Ranga, Y, Esselle, KP & Weily, AR 2010, 'Compact ultra-wideband CPW-FED printed semicircular slot antenna', Microwave and Optical Technology Letters, vol. 52, no. 10, pp. 2367-2372.
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Ranga, Y, Esselle, KP, Weily, AR & Verma, AK 2010, 'A printed antenna with constant gain over a wide bandwidth for ultra-wideband applications', Microwave and Optical Technology Letters, vol. 52, no. 6, pp. 1261-1264.
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Ranga, Y, Verma, AK & Esselle, KP 2010, 'Planar-Monopole-Fed, Surface-Mounted Quasi-TEM Horn Antenna for UWB Systems', IEEE Transactions on Antennas and Propagation, vol. 58, no. 7, pp. 2436-2439.
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Remenyi, J, Hunter, CJ, Cole, C, Ando, H, Impey, S, Monk, CE, Martin, KJ, Barton, GJ, Hutvagner, G & Arthur, JSC 2010, 'Regulation of the miR-212/132 locus by MSK1 and CREB in response to neurotrophins', BIOCHEMICAL JOURNAL, vol. 428, no. Part 2, pp. 281-291.
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Neurotrophins are growth factors that are important in neuronal development and survival as well as synapse formation and plasticity. Many of the effects of neurotrophins are mediated by changes in protein expression as a result of altered transcription
Ren, X, Shon, HK, Jang, N, Lee, YG, Bae, M, Lee, J, Cho, K & Kim, IS 2010, 'Novel membrane bioreactor (MBR) coupled with a nonwoven fabric filter for household wastewater treatment', WATER RESEARCH, vol. 44, no. 3, pp. 751-760.
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Conventional and modified membrane bioreactors (MBRs) are increasingly used in small-scale wastewater treatment. However, their widespread applications are hindered by their relatively high cost and operational complexity. In this study, we investigate a new concept of wastewater treatment using a nonwoven fabric filter bag (NFFB) as the membrane bioreactor. Activated sludge is charged in the nonwoven fabric filter bag and membrane filtration via the fabric is achieved under gravity flow without a suction pump. This study found that the biofilm layer formed inside the NFFB achieved 10 mg/L of suspended solids in the permeate within 20 min of initial operation. The dynamic biofilter layer showed good filterability and the specific membrane resistance consisted of 0.3â1.9 Ã 1012 m/kg. Due to the low F/M ratio (0.04â0.10 kg BOD5/m3/d) and the resultant low sludge yield, the reactor was operated without forming excess sludge. Although the reactor provided aerobic conditions, denitrification occurred in the biofilm layer to recover the alkalinity, thereby eliminating the need to supplement the alkalinity. This study indicates that the NFFB system provides a high potential of effective wastewater treatment with simple operation at reduced cost, and hence offer an attractive solution for widespread use in rural and sparsely populated areas.
Ridoux, J & Veitch, D 2010, 'Principles of robust timing over the internet', Queue, vol. 8, pp. 30-30.
Rivaie, AA & Loganathan, P 2010, 'Phosphorus fertiliser source and weed control effects on growth of three-year-old second-rotation Pinus radiata on Orthic Pumice soil in New Zealand', SOUTHERN FORESTS, vol. 72, no. 2, pp. 75-81.
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Little information is available on the interactive effects of soluble and less-soluble phosphorus (P) fertilisers and weed control on growth and P nutrition of second-rotation Pinus radiata plantations. A study was initiated on three-year-old secondrotation P. radiata and to determine the relationship between needle P concentrations and soil P forms in an Orthic Pumice soil two years after application. Four rates of P (0, 50, 100, and 200 kg P ha-1) were applied as two forms of P fertilizer sources (triple superphosphate [TSP] and Ben-Guerir phosphate rock [BGPR]) in combination with weed control (weedy and weed-free). The results showed that the applied TSP and BGPR can increase tree needle P concentrations even when the needle P concentrations before fertiliser application were marginally higher than the critical P concentrations. The application of P fertilisers had no effect on tree growth during the two-year period of the trial, though it increased P. radiata needle P concentrations. However, the weed removal increased tree height, diameter at breast height, and basal area. In this plantation site the higher needle P concentrations than the critical P concentration suggests that the growth increase dueto weed removal treatment was probably due to an increase in the availability of soil water and nutrients other than P. The needle P concentrations of P. radiata can be predicted by soil tests, Bray-2 P, Olsen P, resin-Pi, and NaOH-Pi tests. Of these soil tests, Bray-2 P seems to be the best test in predicting soil P availability to P. radiata. The P concentrations in the needles had a relationship with the NaOH-Pi fraction but had no relationship with the H2SO4-Pi fraction. These results suggest that P. radiata was probably taking up P mainly from the pool of P-adsorbed to allophane and Fe+Al oxides (NaOH-Pi) in this high P-fixing acidic soil. © NISC (Pty) Ltd.
Rizzi, R, Mahata, P, Mathieson, L & Moscato, P 2010, 'Hierarchical Clustering Using the Arithmetic-Harmonic Cut: Complexity and Experiments', PLoS ONE, vol. 5, no. 12, pp. e14067-e14067.
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Rohde, PP 2010, 'Are quantum walks the saviour of optical quantum computing?'.
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Quantum walks have emerged as an interesting candidate for the implementation
of quantum information processing protocols. Optical implementations of quantum
walks have been demonstrated by various groups and some have received
high-profile coverage. It is often claimed that quantum walks provide an avenue
towards universal quantum computation. In this comment I wish to dispel some
misconceptions surrounding the prospects of quantum walks as a route towards
universal optical quantum computation.
Rohde, PP, Schreiber, A, Stefanak, M, Jex, I & Silberhorn, C 2010, 'Multi-walker discrete time quantum walks on arbitrary graphs, their properties, and their photonic implementation', New J. Phys., vol. 13, p. 013001.
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Quantum walks have emerged as an interesting alternative to the usual circuit
model for quantum computing. While still universal for quantum computing, the
quantum walk model has very different physical requirements, which lends itself
more naturally to some physical implementations, such as linear optics.
Numerous authors have considered walks with one or two walkers, on one
dimensional graphs, and several experimental demonstrations have been
performed. In this paper we discuss generalizing the model of discrete time
quantum walks to the case of an arbitrary number of walkers acting on arbitrary
graph structures. We present a formalism which allows for analysis of such
situations, and several example scenarios for how our techniques can be
applied. We consider the most important features of quantum walks --
measurement, distinguishability, characterization, and the distinction between
classical and quantum interference. We also discuss the potential for physical
implementation in the context of linear optics, which is of relevance to
present day experiments.
Rosberg, Z, Liu, RP, Dinh, TL, Dong, Y & Jha, S 2010, 'Statistical reliability for energy efficient data transport in wireless sensor networks.', Wirel. Networks, vol. 16, no. 7, pp. 1913-1927.
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Ruan, D, Lu, J, Laes, E, Zhang, G, Ma, J & Meskens, G 2010, 'Multi-criteria Group Decision Support with Linguistic Variables in Long-term Scenarios for Belgian Energy Policy', JOURNAL OF UNIVERSAL COMPUTER SCIENCE, vol. 16, no. 1, pp. 103-120.
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Real world decisions often made in the presence of multiple, conflicting, and incommensurate criteria. Decision making requires multiple perspectives of different individuals as more decisions are made now in groups than ever before. This is particularly true when the decision environment becomes more complex such as sustainability policies study in environmental and energy sectors. Group decision making processes judgments or solutions for decision problems based on the input and feedback of multiple individuals. Multi-criteria decision and evaluation problems at tactical and strategic levels in practice involve fuzziness in terms of linguistic variables vis-Ã -vis criteria, weights, and decision maker judgments. Relevant alternatives or scenarios are evaluated according to a number of desired criteria. A fuzzy multi-criteria group decision software tool is developed to analyze long-term scenarios for Belgian energy policy in this paper.
Rujikiatkamjorn, C & Indraratna, B 2010, 'Radial consolidation modelling incorporating the effect of a smear zone for a multilayer soil with downdrag caused by mandrel action', Canadian Geotechnical Journal, vol. 47, no. 9, pp. 1024-1035.
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A system of prefabricated vertical drains with surcharge preloading is an effective method for promoting radial drainage and accelerated soil consolidation. A piecewise technique is employed to analyse the radial consolidation in a multilayer soil system to include (i) the effect of soil downdrag and (ii) a smear zone having linearly varying soil permeability. The effect of soil dragged down from the upper soil layer into the lower layer has been analysed in terms of the time required for consolidation. It can be seen that the consolidation of the multilayer soil depends on smear zone characteristics, the permeability ratio between upper and lower soil layers, penetration depth, and drain spacing. Design procedures are described with the help of an example.
Sadat Hosseini, SS & Gandomi, AH 2010, 'WITHDRAWN: Discussion of “Combined heat and power economic dispatch by harmony search algorithm” by A. Vasebi et al., International Journal of Electrical Power and Energy Systems 29 (2007) 713–719', International Journal of Electrical Power & Energy Systems.
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Safari, HO, Pirasteh, S, Pradhan, B & Gharibvand, LK 2010, 'Use of Remote Sensing Data and GIS Tools for Seismic Hazard Assessment for Shallow Oilfields and its Impact on the Settlements at Masjed-i-Soleiman Area, Zagros Mountains, Iran', Remote Sensing, vol. 2, no. 5, pp. 1364-1377.
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Saha, SC, Patterson, JC & Lei, C 2010, 'Natural convection and heat transfer in attics subject to periodic thermal forcing', International Journal of Thermal Sciences, vol. 49, no. 10, pp. 1899-1910.
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Saha, SC, Patterson, JC & Lei, C 2010, 'Natural convection in attics subject to instantaneous and ramp cooling boundary conditions', Energy and Buildings, vol. 42, no. 8, pp. 1192-1204.
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Saha, SC, Patterson, JC & Lei, C 2010, 'Natural convection in attic-shaped spaces subject to sudden and ramp heating boundary conditions', Heat and Mass Transfer, vol. 46, no. 6, pp. 621-638.
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Saidur, R & Mahlia, TMI 2010, 'Energy, economic and environmental benefits of using high-efficiency motors to replace standard motors for the Malaysian industries', Energy Policy, vol. 38, no. 8, pp. 4617-4625.
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Samali, B, Li, J, Choi, FC & Crews, K 2010, 'Application of the damage index method for plate-like structures to timber bridges', Structural Control and Health Monitoring, vol. 17, no. 8, pp. 849-871.
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The paper presents a research recently completed by the authors utilizing a method of damage evaluation for identifying damage in timber bridges, numerically and experimentally. The method utilizes changes in modal strain energy between the undamaged and damaged states of plate-like structures. A finite element model of a laboratory timber bridge was developed to investigate the capabilities and limitations of the method to detect damage. A simple four-girder bridge was fabricated and tested in a laboratory to verify the method. The numerical studies showed that the method can correctly identify single and multiple damage locations within the bridge. The experimental studies also showed promising results for detecting severe damage, but less effective for light and medium damage.
Samra, HS, He, F, Bhambhani, A, Pipkin, JD, Zimmerer, R, Joshi, SB & Russell Middaugh, C 2010, 'The Effects of Substituted Cyclodextrins on the Colloidal and Conformational Stability of Selected Proteins', Journal of Pharmaceutical Sciences, vol. 99, no. 6, pp. 2800-2818.
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Schäfer, AI, Nghiem, LD, Meier, A & Neale, PA 2010, 'Impact of organic matrix compounds on the retention of steroid hormone estrone by a ‘loose’ nanofiltration membrane', Separation and Purification Technology, vol. 73, no. 2, pp. 179-187.
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Seely, AJE, Macklem, PT, Suki, B, Goldberger, A, Godin, P, Batchinsky, AI, Longtin, A, Jones, G, Seiver, A, McGregor, C, Norris, P, Maksym, G, Lake, D, Costa, MD, Marshall, JC, Morris, JA, Moorman, JR, Arnold, RC, Perez-Velazquez, JL & Nenadovic, V 2010, 'The Wakefield roundtable discussion on complexity and variability at the bedside', Journal of Critical Care, vol. 25, no. 3, pp. 536-537.
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Senthilnanthan, M, Ho, DP, Vigneswaran, S, Ngo, HH & Shon, HK 2010, 'Visible light responsive ruthenium-doped titanium dioxide for the removal of metsulfuron-methyl herbcide in aqueous phase', SEPARATION AND PURIFICATION TECHNOLOGY, vol. 75, no. 3, pp. 415-419.
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Titanium dioxide (TiO2) under UV light irradiation is one of the effective treatment methods to reduce the concentration of synthetic organic compounds in water. Nevertheless, only a small amount of UV light is absorbed in the solar light. This makes the less use of TiO2 for environmental applications. In this study, we prepared Ru-doped visible light responsive (VLR) TiO2 to improve visible light absorption and characterized it in terms of physical and chemical properties. The photocatalytic activity of VLR Rudoped TiO2 was investigated to remove metsulfuron-methyl (MSM) in aqueous phase. The Ru-doped TiO2 at different Ru concentrations was found to have the anatase phase. The undoped and Ru-doped TiO2 consisted of regular round shape. The photocatalytic activity of VLR photocatalyst was significantly improved on the addition of Ru from 40% for undoped TiO2 to 80% for Ru-doped TiO2. The removal efficiency of MSM was proportional to the increasing Ru-doped TiO2 under visible light. As the calcined temperature increased from 300 to 900 â¦C, the degradation efficiencies moderately changed from 65 to 90%. However, the effect of calcination duration was marginal on the photodegradation of MSM.
Shang, F, Xiong, A, Abolhasan, M & Wysocki, T 2010, 'An unequal clustering protocol for wireless sensor networks', Journal of Computational Information Systems, vol. 6, no. 2, pp. 477-486.
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In this paper, a Single-Hop Unequal Clustering (SHUC) algorithm is proposed for wireless sensor networks. The SHUC algorithm consists of three different parts. Firstly, an average energy factor is introduced to balance the residual energy of the whole network during the tentative cluster-head selection process, which improves the network energy efficiency. Secondly, a cost function is proposed to balance energy-efficiency of each node. Finally, an unequal clustering algorithm is proposed for single-hop homogeneous networks. Through both theoretical analysis and numerical results, it is shown that SHUC prolongs the network lifetime significantly against other clustering protocols such as LEACH-C and EECS. Under general instance, SHUC may prolong the lifetime by up to 30% against EECS and 70% against LEACH-C. © 2010 Binary Information Press.
Shannon, A, Orozova, D, Sotirova, E, Hristova, M, Atanassov, K, Krawczak, M, Melo-Pinto, P, Nikolov, R, Sotirov, S & Kim, T 2010, 'Towards a Model of the Digital University: A Generalized Net Model for Producing Course Timetables and for Evaluating the Quality of Subjects', Studies in Computational Intelligence, vol. 299, pp. 373-381.
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In a series of research papers, the authors study some of the most important processes of functioning of universities and construct their Generalized Net (GN) models. The main focus in this paper is to analyse the process of the production of course timetables in a digital university and to evaluate their quality. The opportunity of using GNs as a tool for modeling such processes is also analyzed. © 2010 Springer-Verlag Berlin Heidelberg.
Shao, Z, Zhan, Y, Guo, Y & Zhu, J 2010, 'Grey Fuzzy Sliding Mode Control with Grey Estimator for Brushless Doubly Fed Motor', Journal of Applied Superconductivity and Electromagnetics, vol. 1, no. 1, pp. 107-114.
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In this paper, a grey fuzzy sliding mode controller (GFSMC) for brushless doubly fed motor (BDFM) adjustable speed system is presented. A grey model estimator and adaptive fuzzy control technology are incorporated into the sliding mode control (SMC) to adaptively regulate the adaptive law of SMC. The proposed adaptive fuzzy equivalent controller, adaptive fuzzy switching controller, and grey model compensation controller for BDFM can eliminate the average chattering encountered by most SMC schemes, improve the robustness, and obtain excellent static and dynamic performances of SMC. Simulation results show that the proposed control strategy is feasible, correct and effective.
Shapiro, NI, Trzeciak, S, Hollander, JE, Birkhahn, R, Otero, R, Osborn, TM, Moretti, E, Nguyen, HB, Gunnerson, K, Milzman, D, Gaieski, DF, Goyal, M, Cairns, CB, Kupfer, K, Lee, S-W & Rivers, EP 2010, 'The Diagnostic Accuracy of Plasma Neutrophil Gelatinase–Associated Lipocalin in the Prediction of Acute Kidney Injury in Emergency Department Patients With Suspected Sepsis', Annals of Emergency Medicine, vol. 56, no. 1, pp. 52-59.e1.
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Study objective: We assess the diagnostic accuracy of plasma neutrophil gelatinase-associated lipocalin (NGAL) to predict acute kidney injury in emergency department (ED) patients with suspected sepsis. Methods: We conducted a secondary analysis of a prospective observational study of a convenience sample of patients from 10 academic medical center EDs. Inclusion criteria were adult patients aged 18 years or older, with suspected infection or a serum lactate level greater than 2.5 mmol/L; 2 or more systemic inflammatory response syndrome criteria; and a subsequent serum creatinine level obtained within 12 to 72 hours of enrollment. Exclusion criteria were pregnancy, do-not-resuscitate status, cardiac arrest, or dialysis dependency. NGAL was measured in plasma collected at ED presentation. Acute kidney injury was defined as an increase in serum creatinine measurement of greater than 0.5 mg/dL during 72 hours. Results: There were 661 patient enrolled, with 24 cases (3.6%) of acute kidney injury that developed within 72 hours after ED presentation. Median plasma NGAL levels were 134 ng/mL (interquartile range 57 to 277 ng/mL) in patients without acute kidney injury and 456 ng/mL (interquartile range 296 to 727 ng/mL) in patients with acute kidney injury. Plasma NGAL concentrations of greater than 150 ng/mL were 96% sensitive (95% confidence interval [CI] 79% to 100%) and 51% (95% CI 47% to 55%) specific for acute kidney injury. In comparison, to achieve equivalent sensitivity with initial serum creatinine level at ED presentation required a cutoff of 0.7 mg/dL and resulted in specificity of 17% (95% CI 14% to 20%). Conclusion: In this preliminary investigation, increased plasma NGAL concentrations measured on presentation to the ED in patients with suspected sepsis were associated with the development of acute kidney injury. Our findings support NGAL as a promising new biomarker for acute kidney injury; however, further research is warranted. © 2009 American College...
Shih, Y-C, Hsieh, M-H & Wei, H-Y 2010, 'Multicasting Homogeneous and Heterogeneous Quantum States in Quantum Networks', Nano Communication Networks, 2010, vol. 1, no. 4, pp. 273-282.
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In this paper, we target the practical implementation issues of quantum
multicast networks. First, we design a recursive lossless compression that
allows us to control the trade-off between the circuit complexity and the
dimension of the compressed quantum state. We give a formula that describes the
trade-off, and further analyze how the formula is affected by the controlling
parameter of the recursive procedure. Our recursive lossless compression can be
applied in a quantum multicast network where the source outputs homogeneous
quantum states (many copies of a quantum state) to a set of destinations
through a bottleneck. Such a recursive lossless compression is extremely useful
in the current situation where the technology of producing large-scale quantum
circuits is limited. Second, we develop two lossless compression schemes that
work for heterogeneous quantum states (many copies of a set of quantum states)
when the set of quantum states satisfies a certain structure. The heterogeneous
compression schemes provide extra compressing power over the homogeneous
compression scheme. Finally, we realize our heterogeneous compression schemes
in several quantum multicast networks, including the single-source
multi-terminal model, the multi-source multi-terminal model, and the ring
networks. We then analyze the bandwidth requirements for these network models.
Shon, HK, Phuntsho, S, Vigneswaran, S, Kandasamy, J, Nghiem, LD, Kim, GJ, Kim, JB & Kim, J-H 2010, 'Preparation of Titanium Dioxide Nanoparticles from Electrocoagulated Sludge using Sacrificial Titanium Electrodes', ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 44, no. 14, pp. 5553-5557.
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A comprehensive investigation of electrocoagulation using sacrificial titanium (Ti) electrodes in wastewater was carried out. The effects of specific process variables, such as initial pH, mixing, current density, initial organic loading, and ionic/ electrolyte strength were first optimized to produce recyclable Ti-based sludge. The sludge was incinerated at 600°C to produce functional TiO2 photocatalyst. X-ray diffraction analysis revealed that TiO2 produced at optimum electrocoagulation conditions was mostly anatase structure. The specific surface area of the synthesized TiO2 photocatalyst was higher than that of the commercially available and widely used Degussa P-25 TiO2. Furthermore, energy dispersive X-ray and X-ray photoelectron spectroscopy analyses showed that in additional to titanium and oxygen, this photocatalyst is also composed of carbon and phosphorus. These elements were mainly doped as a substitute site for the oxygen atom. Transmission electron microscopy images exhibited sharply edged nanorods, round nanoparticles, and nanotubes with nonuniform shapes showing some structural defects. Photodecomposition of gaseous acetaldehyde by this photocatalyst was also conducted under UV and visible light irradiation to study the photocatalytic properties of the doped TiO2 photocatalyst. While no photocatalytic activity was observed under visible light irradiation, this doped TiO2 photocatalyst exhibited high photocatalytic activity under UV light.
Shon, HK, Puntsho, S, Vigneswaran, S, Kandasamy, J, Kim, JB, Park, HJ & Kim, IS 2010, 'PVDF-TiO2 coated microfiltration membranes: preparation and characterization', MEMBRANE WATER TREATMENT, vol. 1, no. 3, pp. 193-206.
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Organic fouling and biofouling pose a significant challenge to the membrane filtration process. Photocatalysis-membrane bybrid system is a novel idea for reducing these membranes fouling however, when TiO2 photocatalyst nanoparticles are used in suspension, catalyst recovery is not only imposes an extra step on the process but also significantly contributes to increased membrane resistance and reduced permeate flux. In this study, TiO2 photocatalyst has been immobilized by coating on the microfiltration (MF) membrane surface to minimize organic and microbial fouling. Nano-sized TiO2 was first synthesized by a sol-gel method. The synthesized TiO2 was coated on a Poly Vinyl Difluoride (PVDF) membrane (MF) surface using spray coating and dip coating techniques to obtain hybrid functional composite membrane. The characteristics of the synthesized photocatalyst and a functional composite membrane were studied using numerous instruments in terms of physical, chemical and electrical properties. In comparison to the clean PVDF membrane, the TiO2 coated MF membrane was found more effective in removing methylene blue (20%) and E-coli (99%).
Shon, HK, Vigneswaran, S, El Saliby, I, Okour, Y, Kim, IS, Cho, J, Park, HJ, Kim, JB & Kim, J-H 2010, 'Hydrogen production affected by Pt concentration on TiO2produced from the incineration of dye wastewater flocculated sludge using titanium tetrachloride', Desalination and Water Treatment, vol. 15, no. 1-3, pp. 214-221.
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TiO2 from the incineration of dye wastewater flocculated sludge using TiCl4 coagulant was produced. Optimal catalyst amount and Pt-loading on TiO2 were studied for the production of H2 by photocatalytic reforming of methanol (6% vol.). On the other hand, BTSE (biologically treated sewage effluent) was flocculated using TiCl4 and produced sludge was incinerated to generate TiO2. TiO2 was loaded with optimum Pt and added to the supernatant in a photocatalytic reactor to test the efficiency of using remaining organics as a âsacrificial reagentâ for photocatalytic hydrogen production. Dissolved organic carbon (DOC) and molecular weight distribution (MWD) were measured for nanofiltration (NF) and TiCl4 flocculation followed by photocatalysis. TiO2 (from the incineration of BTSE flocculated sludge using TiCl4) was produced and loaded with 0.5% Pt. Results showed that the optimum concentration of TiO2 (from dye wastewater) for H2 production was 0.3 g/L, while the optimum amount of Pt was 0.5%. DOC and MWD removal was similar for the flocculation of BTSE followed by photocatalytic reaction and the NF process. Remaining organic compounds after flocculation could not be used as sacrificial reagent to induce H2 production. Further investigations on studying the UV intensity and/or identifying organic/inorganic scavengers to inhibit H2 production are underway.
Shon, HK, Vigneswaran, S, El Saliby, I, Okour, Y, Kim, IS, Cho, J, Park, HJ, Kim, JB & Kim, J-H 2010, 'Hydrogen production affected by Pt concentration on TiO2 produced from the incineration of dye wastewater flocculated sludge using titanium tetrachloride', DESALINATION AND WATER TREATMENT, vol. 15, no. 1-3, pp. 214-221.
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Shu, T & Krunz, M 2010, 'Exploiting Microscopic Spectrum Opportunities in Cognitive Radio Networks via Coordinated Channel Access', IEEE Transactions on Mobile Computing, vol. 9, no. 11, pp. 1522-1534.
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Siam, MZ, Krunz, M, Cui, S & Muqattash, A 2010, 'Energy-efficient protocols for wireless networks with adaptive MIMO capabilities', Wireless Networks, vol. 16, no. 1, pp. 199-212.
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Siew, RYJ & al-Kilidar, H 2010, 'An Exploratory Study of HRM: Configurations and Practices across Publicly-listed Australian and Malaysian Construction Companies', The International Journal of Knowledge, Culture, and Change Management: Annual Review, vol. 10, no. 1, pp. 385-402.
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HRM is one of the most poorly understood areas in construction management despite an increasing recognition of its importance.This paper discusses the results of a survey conducted across 78 publicly-listed Australian and Malaysian construction companies. Relative Importance Index (RII) was used to determine the most dominant HRM configuration utilised in these companies. Also, Analytical Hierarchy Process (AHP) was used to determine HRM parameters at a project level. Overall, the survey results confirmed Hofstede's cross cultural analysis across these two regions. © Common Ground, Renard Siew, Hiyam al-Kilidar.
Singh, AK, Deo, MC & Kumar, VS 2010, 'Discussion: Neural network – genetic programming for sediment transport', Proceedings of the Institution of Civil Engineers - Maritime Engineering, vol. 163, no. 3, pp. 135-136.
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Singh, RP 2010, 'Geomatics, Natural Hazards and Risk – Launch of a New Journal', Geomatics, Natural Hazards and Risk, vol. 1, no. 1, pp. 1-1.
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Singh, SPN, Fitch, R & Williams, SB 2010, 'A research-driven approach to undergraduate robotics education', Computers in Education Journal, vol. 20, no. 4, pp. 21-27.
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Robotics is a rapidly-progressing and applied subject. This paper advocates for a researchdriven model for modern robotics course design that, based on a principled approach, prepares students to consider and adopt recent results in their mechatronics applications. This view provides a rubric for defining a sufficient set of topics that give a broad overview of robotic technologies and provides a foundation for later (undergraduate) research experience. To address the inherently multidisciplinary nature of robotics, a modular co-teaching model is adopted in which separate sections are taught by different lecturers, who potentially span various academic departments. Evidence supporting this approach is illustrated from case studies of student projects in The University of Sydney's Experimental Robotics course, MTRX 4700. By providing an engaging topic, a research approach, extensive mentorship, and an open-ended problem, the course not only meets learning objectives, but also promotes a research foundation supporting later undergraduate research opportunities.
Sobala, A & Hutvágner, G 2010, 'Small RNAs and their effects on gene expression', Bio Tech International, vol. 22, no. SEPTEMBER-OCTOBER, pp. 19-22.
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The cellular spectrum of small RNAs, and processes regulated by them, is very diverse. This article summarises the wide variety of endogenous small RNAs in mammals and explains how they regulate gene expression.
Sonawane, HA & Joshi, SS 2010, 'Analytical modeling of chip geometry and cutting forces in helical ball end milling of superalloy Inconel 718', CIRP Journal of Manufacturing Science and Technology, vol. 3, no. 3, pp. 204-217.
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Stevenson, M, Sharwood, LN, Wong, K, Elkington, J, Meuleners, L, Ivers, RQ, Grunstein, RR, Williamson, A, Haworth, N & Norton, R 2010, 'The Heavy Vehicle Study: a case-control study investigating risk factors for crash in long distance heavy vehicle drivers in Australia', BMC Public Health, vol. 10, no. 1.
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Abstract
Background
Heavy vehicle transportation continues to grow internationally; yet crash rates are high, and the risk of injury and death extends to all road users. The work environment for the heavy vehicle driver poses many challenges; conditions such as scheduling and payment are proposed risk factors for crash, yet the precise measure of these needs quantifying. Other risk factors such as sleep disorders including obstructive sleep apnoea have been shown to increase crash risk in motor vehicle drivers however the risk of heavy vehicle crash from this and related health conditions needs detailed investigation.
Methods and Design
The proposed case control study will recruit 1034 long distance heavy vehicle drivers: 517 who have crashed and 517 who have not. All participants will be interviewed at length, regarding their driving and crash history, typical workloads, scheduling and payment, trip history over several days, sleep patterns, health, and substance use. All participants will have administered a nasal flow monitor for the detection of obstructive sleep apnoea.
Discussion
Significant attention has been paid to the enforcement of legislation aiming to deter problems such as excess loading, speeding and substance use; however, there is inconclusive evidence as to the direction and strength of associations of many other postulated risk factors for heavy vehicle crashes. The influence of factors such as remuneration and scheduling on crash risk is unclear; so too the association between sleep apnoea and the risk of heavy vehicle driver crash. Contributory factors such as sleep quality and quantity, body mass and health status will be inve...
Su, SW, Chen, W, Liu, D, Fang, Y, Kuang, W, Yu, X, Guo, T, Celler, BG & Nguyen, HT 2010, 'Dynamic Modelling of Heart Rate Response Under Different Exercise Intensity', The Open Medical Informatics Journal, vol. 4, no. 1, pp. 81-85.
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Heart rate is one of the major indications of human cardiovascular response to exercises. This study investigates human heart rate response dynamics to moderate exercise. A healthy male subject has been asked to walk on a motorised treadmill under a predefined exercise protocol. ECG, body movements, and oxygen saturation (SpO2) have been reliably monitored and recorded by using non-invasive portable sensors. To reduce heart rate variation caused by the influence of various internal or external factors, the designed step response protocol has been repeated three times. Experimental results show that both steady state gain and time constant of heart rate response are not invariant when walking speed is faster than 3 miles/hour, and time constant of offset exercise is noticeably longer than that of onset exercise.
Su, SW, Huang, S, Wang, L, Celler, BG, Savkin, AV, Guo, Y & Cheng, TM 2010, 'Optimizing Heart Rate Regulation for Safe Exercise', ANNALS OF BIOMEDICAL ENGINEERING, vol. 38, no. 3, pp. 758-768.
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Safe exercise protocols are critical for effective rehabilitation programs. This paper aims to develop a novel control strategy for an automated treadmill system to reduce the danger of injury during cardiac rehabilitation. We have developed a control-or
Suits, LD, Sheahan, TC, Su, L-J, Rujikiatkamjorn, C & Indraratna, B 2010, 'An Evaluation of Fouled Ballast in a Laboratory Model Track Using Ground Penetrating Radar', Geotechnical Testing Journal, vol. 33, no. 5, pp. 103045-103045.
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Sun, JY, Wang, ZK, Lim, HS, Ng, SC, Kuok, MH, Tran, TT & Lu, X 2010, 'Hypersonic Vibrations of Ag@SiO2 (Cubic Core)−Shell Nanospheres', ACS Nano, vol. 4, no. 12, pp. 7692-7698.
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SUN, Y, GE, Y-M, HERBORN, S & DUTKIEWICZ, E 2010, 'Research on Flow Distribution Technology for Multimode Terminals in Heterogeneous Networks', Chinese Journal of Computers, vol. 33, no. 6, pp. 1004-1013.
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With the rapid development of heterogeneous networks, multimode terminals become more and more popular. However, when there are several different kinds of sessions requiring transmission simultaneously, how to distribute these session flows among the available interfaces of the terminal according to the different features of the flows, the current conditions of the candidate access networks, the communication monetary cost and power consumption is a new challenge. This paper proposes a new solution to the flow distribution problem for multimode terminals. The proposal includes an architecture model of the multimode terminal as well as the corresponding flow distribution algorithm. The proposal utilizes the notion of priority, ensuring the more important sessions have preferential use of the network resources when the traffic intensity was high. In addition, the proposal introduces a new mechanism to automatically determine the weights of different attributes which influences the flow distribution decision making, thus avoiding the difficulty to specify the weights manually. Simulation results show that the proposal can efficiently distribute the session flows on a multimode mobile terminal to the appropriate networks for transmission. Also, the proposal provides a significant improvement to performance indicators such as throughput and session completion rate.
Tabatabaiefar, HR & Massumi, A 2010, 'A simplified method to determine seismic responses of reinforced concrete moment resisting building frames under influence of soil–structure interaction', Soil Dynamics and Earthquake Engineering, vol. 30, no. 11, pp. 1259-1267.
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As the Iranian seismic code does not address the soil–structure interaction (SSI) explicitly, the effects of SSI on RC-MRFs are studied using the direct method. Four types of structures on three types of soils, with and without the soil interaction, are modeled and subjected to different earthquake records. The results led to a criterion indicating that considering SSI in seismic design, for buildings higher than three and seven stories on soil with Vs<175 m/s and 175
Tadkaew, N, Sivakumar, M, Khan, SJ, McDonald, JA & Nghiem, LD 2010, 'Effect of mixed liquor pH on the removal of trace organic contaminants in a membrane bioreactor', Bioresource Technology, vol. 101, no. 5, pp. 1494-1500.
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Tang, L, Du, P & Wu, C 2010, 'Compare diagnostic tests using transformation-invariant smoothed ROC curves', Journal of Statistical Planning and Inference, vol. 140, no. 11, pp. 3540-3551.
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Receiver operating characteristic (ROC) curve, plotting true positive rates against false positive rates as threshold varies, is an important tool for evaluating biomarkers in diagnostic medicine studies. By definition, ROC curve is monotone increasing from 0 to 1 and is invariant to any monotone transformation of test results. And it is often a curve with certain level of smoothness when test results from the diseased and non-diseased subjects follow continuous distributions. Most existing ROC curve estimation methods do not guarantee all of these properties. One of the exceptions is Du and Tang (2009) which applies certain monotone spline regression procedure to empirical ROC estimates. However, their method does not consider the inherent correlations between empirical ROC estimates. This makes the derivation of the asymptotic properties very difficult. In this paper we propose a penalized weighted least square estimation method, which incorporates the covariance between empirical ROC estimates as a weight matrix. The resulting estimator satisfies all the aforementioned properties, and we show that it is also consistent. Then a resampling approach is used to extend our method for comparisons of two or more diagnostic tests. Our simulations show a significantly improved performance over the existing method, especially for steep ROC curves. We then apply the proposed method to a cancer diagnostic study that compares several newly developed diagnostic biomarkers to a traditional one. © 2010 Elsevier B.V.
Tao Shu & Krunz, M 2010, 'Coverage-Time Optimization for Clustered Wireless Sensor Networks: A Power-Balancing Approach', IEEE/ACM Transactions on Networking, vol. 18, no. 1, pp. 202-215.
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Tao Shu, Krunz, M & Sisi Liu 2010, 'Secure Data Collection in Wireless Sensor Networks Using Randomized Dispersive Routes', IEEE Transactions on Mobile Computing, vol. 9, no. 7, pp. 941-954.
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Tarini, M, Pietroni, N, Cignoni, P, Panozzo, D & Puppo, E 2010, 'Practical quad mesh simplification.', Comput. Graph. Forum, vol. 29, pp. 407-418.
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Thakur, PK, Vinod, JS & Indraratna, B 2010, 'Effect of particle breakage on cyclic densification of ballast: A DEM approach', IOP Conference Series: Materials Science and Engineering, vol. 10, pp. 012229-012229.
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Tijing, LD, Kim, HY, Lee, DH, Kim, CS & Cho, YI 2010, 'Physical water treatment using RF electric fields for the mitigation of CaCO 3 fouling in cooling water', International Journal of Heat and Mass Transfer, vol. 53, no. 7, pp. 1426-1437.
Tomamichel, M & Renner, R 2010, 'The Uncertainty Relation for Smooth Entropies', Phys. Rev. Lett., vol. 106, no. 11, p. 110506.
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Uncertainty relations give upper bounds on the accuracy by which the outcomes
of two incompatible measurements can be predicted. While established
uncertainty relations apply to cases where the predictions are based on purely
classical data (e.g., a description of the system's state before measurement),
an extended relation which remains valid in the presence of quantum information
has been proposed recently [Berta et al., Nat. Phys. 6, 659 (2010)]. Here, we
generalize this uncertainty relation to one formulated in terms of smooth
entropies. Since these entropies measure operational quantities such as
extractable secret key length, our uncertainty relation is of immediate
practical use. To illustrate this, we show that it directly implies security of
a family of quantum key distribution protocols including BB84. Our proof
remains valid even if the measurement devices used in the experiment deviate
arbitrarily from the theoretical model.
Tomamichel, M, Schaffner, C, Smith, A & Renner, R 2010, 'Leftover Hashing Against Quantum Side Information', IEEE Trans. Inf. Theory, 57 (8), 2011, vol. 57, no. 8, pp. 5524-5535.
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The Leftover Hash Lemma states that the output of a two-universal hash
function applied to an input with sufficiently high entropy is almost uniformly
random. In its standard formulation, the lemma refers to a notion of randomness
that is (usually implicitly) defined with respect to classical side
information. Here, we prove a (strictly) more general version of the Leftover
Hash Lemma that is valid even if side information is represented by the state
of a quantum system. Furthermore, our result applies to arbitrary delta-almost
two-universal families of hash functions. The generalized Leftover Hash Lemma
has applications in cryptography, e.g., for key agreement in the presence of an
adversary who is not restricted to classical information processing.
Tran, N, O'Brien, CJ, Clark, J & Rose, B 2010, 'Potential role of micro-RNAs in head and neck tumorigenesis', Head & Neck, vol. 32, no. 8, pp. 1099-1111.
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A new class of regulatory molecules known as microRNAs (miRNAs) is redefining our understanding of the molecular pathways associated with tumorigenesis. These miRNAs are small noncoding RNA (ncRNA) sequences with potent regulatory potential. The aberrant
Trani, LDO & Indraratna, B 2010, 'Assessment of Subballast Filtration under Cyclic Loading', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 11, pp. 1519-1528.
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TRANI, LDO & INDRARATNA, B 2010, 'The use of particle size distribution by surface area method in predicting the saturated hydraulic conductivity of graded granular soils', Géotechnique, vol. 60, no. 12, pp. 957-962.
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The hydraulic conductivity (k) of a fully saturated granular material can be predicted by the well-known Kozeny–Carman formula, and its slightly different variations, based on the porosity (n) and effective diameter (deff). Most variations of the Kozeny–Carman formula compute the parameter deff based on a given conventional particle size distribution by mass (PSDm), where the validation would normally be carried out by comparing against laboratory permeability tests conducted on soils having an average coefficient of uniformity (Cu) of about 3. Knowing that the Kozeny–Carman formula was originally developed for uniformly graded materials, inevitable limitations are inherited when it is applied to increasingly graded soils. This study proposes to convert the PSDm into its equivalence in surface area (PSDsa) conforming to the fundamental geometric assumption by which the Kozeny–Carman equation was originally formulated. The estimated deff based on this proposed PSDsa method appears implicitly to incorporate the size, shape and angularity of the natural grains which were traditionally represented by the shape coefficient (α). The results presented in this paper show that the suggested method is capable of predicting k for fully saturated granular soils with Cu of up 20.
Trani, LDO & Indraratna, B 2010, 'Use of Impedance Probe for Estimation of Porosity Changes in Saturated Granular Filters under Cyclic Loading: Calibration and Application', Journal of Geotechnical and Geoenvironmental Engineering, vol. 136, no. 10, pp. 1469-1474.
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Tsai, C-H, Liao, L-D, Luo, Y-S, Chao, PC-P, Chen, E-C, Meng, H-F, Chen, W-D, Lin, S-K & Lin, C-T 2010, 'Optimal design and fabrication of ITO/organic photonic crystals in polymer light-emitting diodes using a focused ion beam', Microelectronic Engineering, vol. 87, no. 5-8, pp. 1331-1335.
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Tu, KL, Nghiem, LD & Chivas, AR 2010, 'Boron removal by reverse osmosis membranes in seawater desalination applications', Separation and Purification Technology, vol. 75, no. 2, pp. 87-101.
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Tuan, HD, Kha, HH, Nguyen, HH & Luong, V-J 2010, 'Optimized Training Sequences for Spatially Correlated MIMO-OFDM', IEEE Transactions on Wireless Communications, vol. 9, no. 9, pp. 2768-2778.
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In this paper, the training sequence design for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems under the minimum mean square error (MMSE) criterion is addressed. The optimal training sequence for channel e
Turner, BD, Binning, PJ & Sloan, SW 2010, 'Impact of Phosphate on Fluoride Removal by Calcite', Environmental Engineering Science, vol. 27, no. 8, pp. 643-650.
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Vasantgadkar, NA, Bhandarkar, UV & Joshi, SS 2010, 'A finite element model to predict the ablation depth in pulsed laser ablation', Thin Solid Films, vol. 519, no. 4, pp. 1421-1430.
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Vexler, A, Wu, C & Yu, KF 2010, 'Optimal hypothesis testing: from semi to fully Bayes factors', Metrika, vol. 71, no. 2, pp. 125-138.
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We propose and examine statistical test-strategies that are somewhat between the maximum likelihood ratio and Bayes factor methods that are well addressed in the literature. The paper shows an optimality of the proposed tests of hypothesis. We demonstrate that our approach can be easily applied to practical studies, because execution of the tests does not require deriving of asymptotical analytical solutions regarding the type I error. However, when the proposed method is utilized, the classical significance level of tests can be controlled. © Springer-Verlag 2008.
Vicars, R, Hyde, PJ, Brown, TD, Tipper, JL, Ingham, E, Fisher, J & Hall, RM 2010, 'The effect of anterior–posterior shear load on the wear of ProDisc-L TDR', European Spine Journal, vol. 19, no. 8, pp. 1356-1362.
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Vidal-Calleja, TA, Sanfeliu, A & Andrade-Cetto, J 2010, 'Action Selection for Single-Camera SLAM', IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), vol. 40, no. 6, pp. 1567-1581.
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A method for evaluating, at video rate, the quality of actions for a single camera while mapping unknown indoor environments is presented. The strategy maximizes mutual information between measurements and states to help the camera avoid making ill-condi
Vinod, JS, Indraratna, B & Mahamud, MAA 2010, 'Stabilisation of an erodible soil using a chemical admixture', Proceedings of the Institution of Civil Engineers - Ground Improvement, vol. 163, no. 1, pp. 43-51.
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Internal erosional behaviour of a lignosulfonate-treated dispersive soil has been studied using apparatus designed and built at University of Wollongong. The effectiveness of lignosulfonate-treated dispersive clay on its erosion resistance has been investigated and its advantages over traditional admixtures (cement) have been presented. Lignosulfonate is a non-toxic admixture that can stabilise certain erodible and dispersive soils effectively, without causing any adverse environmental impact on the ground unlike some traditional stabilisers. Test results show that the erosional parameters such as critical shear stress and coefficient of soil erosion are improved with the increase in the amount of lignosulfonate. Knowledge about the clay particles and lignosulfonate interaction mechanisms is pertinent for long-term environmental sustainability of treated soils, a factor which is poorly understood at microscopic level. Considering this, X-ray diffraction, and Fourier transform infrared spectroscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy were carried out on representative samples to understand the stabilisation mechanism at the particle scale level. The improvement of performance exhibited by the lignosulfonate-treated soil can be mainly attributed to the reduction of the double-layer thickness by the neutralisation of surface charges of the clay particles and the formation of more stable particle clusters by polymer bridging.
Vinod, JS, Sridharan, A & Indraratna, B 2010, 'Determination of Coefficient of Radial Consolidation Using Steepest Tangent Fitting Method', Geotechnical and Geological Engineering, vol. 28, no. 4, pp. 533-536.
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Barron (Trans ASCE 113:718-724, 1948) theoretical relationship between degree of consolidation (Ur) and time factor (Tr) is generally used to determine the coefficient of radial consolidation cr. Several researchers have proposed different laboratory techniques for obtaining the value of cr. However, the usual approach is to compare some salient features of the theoretical Ur-Tr relationship with the compression, δ and time, t based on the laboratory data. In this paper, rapid consolidation test procedure originally proposed by Su (J Soil Mech Found Div Am Soc Civ Eng No. 95: Proc. Pap. 1729 (1-9), 1958) to determine the coefficient of vertical consolidation (cv) is extended to evaluate Barron's coefficient of radial consolidation cr for the case of equal strain. The characteristic feature of the proposed method is the identification of the steepest tangent from the δ-log t plot. The slope of steepest tangent is independent of the drain spacing ratio (n) with a value of 0.847. This approach is rapid, and it predicts more reliable values of cr as it is less influenced by the secondary compression. In addition, this method is more versatile and can be applied for consolidation trends which do not always exhibit the typical S-shape. © 2010 Springer Science+Business Media B.V.
Visconti, RP, Kasyanov, V, Gentile, C, Zhang, J, Markwald, RR & Mironov, V 2010, 'Towards organ printing: engineering an intra-organ branched vascular tree', Expert Opinion on Biological Therapy, vol. 10, no. 3, pp. 409-420.
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Vogel, D, Simon, A, Alturki, AA, Bilitewski, B, Price, WE & Nghiem, LD 2010, 'Effects of fouling and scaling on the retention of trace organic contaminants by a nanofiltration membrane: The role of cake-enhanced concentration polarisation', Separation and Purification Technology, vol. 73, no. 2, pp. 256-263.
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Voinov, A & Bousquet, F 2010, 'Modelling with stakeholders☆', Environmental Modelling & Software, vol. 25, no. 11, pp. 1268-1281.
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Voinov, A & Cerco, C 2010, 'Model integration and the role of data', Environmental Modelling & Software, vol. 25, no. 8, pp. 965-969.
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Voinov, AA, DeLuca, C, Hood, RR, Peckham, S, Sherwood, CR & Syvitski, JPM 2010, 'A Community Approach to Earth Systems Modeling', Eos, Transactions American Geophysical Union, vol. 91, no. 13, pp. 117-117.
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Vu, NA, Castel, A & François, R 2010, 'Response of post-tensioned concrete beams with unbonded tendons including serviceability and ultimate state', Engineering Structures, vol. 32, no. 2, pp. 556-569.
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Waldron, KJ, Tran, TH & Madadnia, J 2010, 'Configuration design of a robotic vehicle for rough terrain mobility', International Journal of Intelligent Systems Technologies and Applications, vol. 8, no. 1/2/3/4, pp. 171-171.
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In this paper, we describe the motivation for building a six-wheeled robotic vehicle with active suspension to test mobility improvement concepts on rough terrain. The vehicle is being designed and constructed as a final year class project in the School of Engineering and Information Technology of the University of Technology, Sydney. The configuration of the designed vehicle and the integration of the sensing and computation systems are described. © 2010 Inderscience Enterprises Ltd.
Wang, J, Zhu, S, Zhang, W & Lu, H 2010, 'Combined modeling for electric load forecasting with adaptive particle swarm optimization', Energy, vol. 35, no. 4, pp. 1671-1678.
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Electric load forecasting is crucial for managing electric power systems economically and safely. This paper presents a new combined model for electric load forecasting based on the seasonal ARIMA forecasting model, the seasonal exponential smoothing mod
Wang, Q, Hao, X & Cao, Y 2010, 'Enriched experiment and endogenous characteristics of polyphosphate-accumulating organisms (PAOs)', Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae, vol. 30, no. 12, pp. 2405-2413.
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By means of measuring maximal anaerobic phosphate release rates (PRR), analyzing 16S rRNA with fluorescence in-situ hybridization (FISH) and observing membrane integrity by live/dead staining, the aerobic decay characteristics of polyphosphate-accumulating organisms (PAOs) in a biological nutrient removal (BNR) system and an enriched PAOs sequencing batch reactor (SBR) system were investigated. It was experimentally determined that a highly enriched culture of PAOs (91%) was obtained in the enriched PAO-SBR system by alternating the carbon source in the feed between sodium acetate trihydrate and propionate over a 36 d switching cycle, i.e., sodium acetate trihydrate (24 d) and propionate (12 d). The experimental results and calculations revealed that the decay rates of PAOs in the BNR and enriched PAO-SBR systems were 0.113 d-1 and 0.181 d-1, respectively, and the death rates were 0.048 d-1 and 0.036 d-1. In addition, the results also demonstrated that cell death contributed 42% and 20%, respectively, to the cell decay in the BNR and enriched PAO-SBR systems. In other words, the activity decay accounted for 58% and 80% of the total cell decay. For this reason, cell death was not a major factor causing the cell decay of PAOs, but activity decay was mostly responsible for this process.
Wang, S, Qiu, J, Liu, X, Wang, Z, Zhu, J, Guo, Y, Lin, ZW, Wang, Y & Xu, W 2010, 'Current distribution analysis for high temperature superconducting cable considering hysteresis characteristics', International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 511-517.
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This paper presents a hysteresis model for TypeII high temperature superconductor (HTS) by using simplified Preisach Model, in which the Preisach distribution function μk (alpha, beta) is determined only based on the B â H limiting loop. The nonlinear dynamic circuit model of the superconductor is established. In the circuit model, the hysteresis inductance and hysteresis loss described by using simplified Preisach Model are deduced. Applying the hysteresis circuit model, the currents flowing in different superconductor layers of high temperature superconducting cable are simulated, as well as the hysteresis loss of the superconducting cable. The simulation results are verified by comparison with the data recorded in literatures. Finally, the influences of hysteresis on superconducting cable are analyzed and discussed.
WANG, X-Z, XU, X-F & WANG, Z-J 2010, 'A Profit Optimization Oriented Service Selection Method for Dynamic Service Composition', Chinese Journal of Computers, vol. 33, no. 11, pp. 2104-2115.
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Service composition is an effective means of building value-added service in service-oriented computing environment. Current research focuses on the fulfillment of customer value, while neglects the value procurable by service broker, which is the compositor of individual services as well as the provider of composite services. On the one hand, over-optimized service quality will not bring additional profit to the service provider as well as no remarkable improvement to customer satisfaction, thus is unnecessary for the value of both sides of service participants in SLA environment; on the other hand, due to the uncertainty of both services and the environment for delivering services, real quality of service-oriented applications exhibits as uncertain, too. So real services may not meet the quality requirement of negotiated service level, or even fail. Profit and service strategies are studied for SLA, and a novel service selection model is proposed for profit optimization. Based on periodical estimation of service cost and instant feedbacks, service requirements are greedily scheduled and optimized service selection is realized for dynamic service composition based on simulated annealing algorithm. Experimental results show that this approach does not only promote the profit of composite services, but also have superior efficiency in procuring optimized results under different circumstances of requirements distribution, compared with traditional approaches.
Wang, Y, Guo, N, Zhu, J, Duan, N, Wang, S, Guo, Y, Xu, W & Li, Y 2010, 'Initial Rotor Position and Magnetic Polarity Identification of PM Synchronous Machine Based on Nonlinear Machine Model and Finite Element Analysis', IEEE Transactions on Magnetics, vol. 46, no. 6, pp. 2016-2019.
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In this paper, a DC voltage pulse injection based method is proposed to detect the initial position and rotor polarity of permanent magnet synchronous motor (PMSM). The rotor angle vibration is expressed analytically as a function of the injected pulse.
Wang, Y, Zhu, J & Guo, Y 2010, 'A Comprehensive Analytical Mathematic Model for Permanent-Magnet Synchronous Machines Incorporating Structural and Saturation Saliencies', IEEE Transactions on Magnetics, vol. 46, no. 12, pp. 4081-4091.
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We introduce a new method to model permanent-magnet synchronous machines (PMSMs) with saliencies due to the salient structure and magnetic saturation. We define two parameters to indicate these saliencies, i.e., the structural saliency ratio $(K_{rm str})$ and the saturation saliency ratio $(K_{rm sat})$. To verify the nonlinear model, we tested a real PMSM and numerically simulated it. The nonlinear inductance matrix is deduced and expressed by a nonlinear function regressed from the experimental data. The simulation and experimental results agree well with each other.
Wang, Y, Zhu, J, Wang, S, Guo, Y & Xu, W 2010, 'Modeling and simulation of direct torque controlled SPMSM Drive incorporating magnetic saturation saliency', International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 473-479.
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In this paper a comprehensive nonlinear model of surface mounted permanent magnet synchronous machine (SPMSM) is proposed considering both the structural and the saturation saliencies to enable the numerical simulation of new rotor position detection algorithms. An experiment platform is carried out to test and collect the incremental inductance values varying again the stator current levels and the rotor position. The Least Relative Residual Sum of Square (LRRSS) method is employed in the nonlinear inductance function regression. After experimentally identifying out all the parameters, a nonlinear mathematic model of SPMSMis built up. Furthermore, the direct torque control (DTC) scheme is applied to this new model to verify the model and simulate the machine performance.
Wang, ZY, Lam, YC, Chen, X & Joshi, SC 2010, 'Viscosity corrections for concentrated suspension in capillary flow with wall slip', AIChE Journal, vol. 56, no. 6, pp. 1447-1455.
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Watt, DJ, Kayis, B & Willey, K 2010, 'The relative importance of tender evaluation and contractor selection criteria', INTERNATIONAL JOURNAL OF PROJECT MANAGEMENT, vol. 28, no. 1, pp. 51-60.
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Research in identifying the relative importance of criteria used to select a preferred supplier has, for the most part, relied on subjective lists of criteria being presented to respondents. The research reported here uses an experimental design approach to quantify the importance of nine common criteria used in an actual evaluation and selection of a contractor/supplier. Unique choice sets were constructed, each comprising three tender evaluation outcomes (alternatives) described in terms of all criteria, but with varying levels. Respondents simultaneously evaluated all three alternatives within each choice set and selected the most preferred. Utility estimates for each criterion level were determined as was the overall contribution made by the individual criterion. Results indicate Past Project Performance, Technical Expertise and Cost are the most important criteria in an actual choice of contractor with Organisational Experience, Workload, and Reputation being the least important.
Wei Xu, Jian Guo Zhu, Yongchang Zhang, Yaohua Li, Yi Wang & Youguang Guo 2010, 'An Improved Equivalent Circuit Model of a Single-Sided Linear Induction Motor', IEEE Transactions on Vehicular Technology, vol. 59, no. 5, pp. 2277-2289.
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The derivation of the equivalent circuit for a single-sided linear induction motor (SLIM) is not straightforward, particularly if it includes longitudinal end effects from the cut-open primary magnetic path, transversal edge effects from the differing wi
Wei, D, Huang, J, Zhang, A, Jiang, Z, Tieu, AK, Shi, X, Jiao, S & Chen, L 2010, 'Deformation of Oxide Scale and Roll-Strip Interface Characteristics in Hot Rolling of Stainless Steel 304', STEEL RESEARCH INTERNATIONAL, vol. 81, no. 9, pp. 102-105.
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The deformation of oxide scale affects roll-strip interface characteristics in hot rolling. Few studies have been carried out on the deformation behavior of oxide scale in hot rolling of stainless steels. In this paper, the thickness, morphology of the oxide scale and the surface roughness of workpiece in hot rolling of stainless steel 304 under the condition of a single pass were investigated, and the friction coefficients were calculated. The effect of humidity on the growth of oxide scale of stainless steel 304 has been identified. Outer and inner oxide layers can be found when the water vapor content is over 7 vol.%. An incomplete oxide layer which is a transition layer between the inner oxide layer and steel substrate can be distinguished in thick oxide scale when the water vapour content is over 12 vol.%. The oxide scale thickness decreases linearly with an increase of reduction. Surface roughness also decreases with an increase of reduction. After experiencing 20 and 30 % reduction, the surface roughness asperities are flattened, so the outmost surface of oxide scale after rolling is much smoother than that before rolling. Generally, friction coefficients decrease with an increase of reduction.
Wei, X & Stewart, MG 2010, 'Model validation and parametric study on the blast response of unreinforced brick masonry walls', International Journal of Impact Engineering, vol. 37, no. 11, pp. 1150-1159.
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Numerical simulations are carried out to estimate the response and damage of unreinforced brick masonry walls subjected to explosive blast loading based on the transient dynamic finite element program LS-DYNA. A previously developed dynamic plastic damage model was used for brick and mortar. A new model for strain rate effects of bricks and mortar is included in the numerical analysis. The results obtained from the numerical models are compared with field test data and good agreement can be found. Parametric studies are conducted to evaluate the effect of material strength, boundary conditions, and thickness of the wall on the blast response of unreinforced brick masonry walls. It was found that boundary conditions and wall thickness significantly affect the blast response, while the effect of material strength is relatively small. © 2010 Elsevier Ltd. All rights reserved.
White, R, Thomas, P, Phillips, MR, Moran, K & Wuhrer, R 2010, 'X-Ray Mapping and Scatter Diagram Analysis of the Discoloring Products Resulting from the Interaction of Artist's Pigments', MICROSCOPY AND MICROANALYSIS, vol. 16, no. 5, pp. 594-598.
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The discoloring interaction between the artist's pigments cadmium yellow and the copper-containing malachite, an interaction that is conjectured to cause black spotting in oil paintings of the 19th and early 20th centuries, was examined using X-ray mappi
Widmer, M, Blum, J, Hofmeyr, GJ, Carroli, G, Abdel-Aleem, H, Lumbiganon, P, Ngoc, NTN, Wojdyla, D, Thinkhamrop, J, Singata, M, Mignini, LE, Abdel-Aleem, MA, Thach, TS & Winikoff, B 2010, 'Misoprostol as an adjunct to standard uterotonics for treatment of post-partum haemorrhage: a multicentre, double-blind randomised trial', The Lancet, vol. 375, no. 9728, pp. 1808-1813.
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Widmer, M, Blum, J, Hofmeyr, GJ, Carroli, G, Abdel-Aleem, H, Lumbiganon, P, Nguyen, TNN, Wojdyla, D, Thinkhamrop, J, Singata, M, Mignini, LE, Abdel-Aleem, MA, Tran, ST & Winikoff, B 2010, 'Misoprostol as an Adjunct to Standard Uterotonics for Treatment of Postpartum Hemorrhage: A Multicentre, Double-Blind Randomized Trial', Obstetrical & Gynecological Survey, vol. 65, no. 10, pp. 609-610.
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Wilde, MM & Hsieh, M-H 2010, 'Public and private resource trade-offs for a quantum channel', Quantum Information Processing, vol. 11, pp. 6-1501.
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Collins and Popescu realized a powerful analogy between several resources in
classical and quantum information theory. The Collins-Popescu analogy states
that public classical communication, private classical communication, and
secret key interact with one another somewhat similarly to the way that
classical communication, quantum communication, and entanglement interact. This
paper discusses the information-theoretic treatment of this analogy for the
case of noisy quantum channels. We determine a capacity region for a quantum
channel interacting with the noiseless resources of public classical
communication, private classical communication, and secret key. We then compare
this region with the classical-quantum-entanglement region from our prior
efforts and explicitly observe the information-theoretic consequences of the
strong correlations in entanglement and the lack of a super-dense coding
protocol in the public-private-secret-key setting. The region simplifies for
several realistic, physically-motivated channels such as entanglement-breaking
channels, Hadamard channels, and quantum erasure channels, and we are able to
compute and plot the region for several examples of these channels.
Wilde, MM & Hsieh, M-H 2010, 'The quantum dynamic capacity formula of a quantum channel', Quantum Information Processing, vol. 11, no. 6, pp. 6-1463.
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The dynamic capacity theorem characterizes the reliable communication rates
of a quantum channel when combined with the noiseless resources of classical
communication, quantum communication, and entanglement. In prior work, we
proved the converse part of this theorem by making contact with many previous
results in the quantum Shannon theory literature. In this work, we prove the
theorem with an 'ab initio' approach, using only the most basic tools in the
quantum information theorist's toolkit: the Alicki-Fannes' inequality, the
chain rule for quantum mutual information, elementary properties of quantum
entropy, and the quantum data processing inequality. The result is a simplified
proof of the theorem that should be more accessible to those unfamiliar with
the quantum Shannon theory literature. We also demonstrate that the 'quantum
dynamic capacity formula' characterizes the Pareto optimal trade-off surface
for the full dynamic capacity region. Additivity of this formula simplifies the
computation of the trade-off surface, and we prove that its additivity holds
for the quantum Hadamard channels and the quantum erasure channel. We then
determine exact expressions for and plot the dynamic capacity region of the
quantum dephasing channel, an example from the Hadamard class, and the quantum
erasure channel.
Wilde, MM, Hsieh, M-H & Babar, Z 2010, 'Entanglement-assisted quantum turbo codes', IEEE Transactions on Information Theory vol. 60, no. 2, pages 1203-1222 (February 2014), vol. 60, no. 2, pp. 1203-1222.
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An unexpected breakdown in the existing theory of quantum serial turbo coding
is that a quantum convolutional encoder cannot simultaneously be recursive and
non-catastrophic. These properties are essential for quantum turbo code
families to have a minimum distance growing with blocklength and for their
iterative decoding algorithm to converge, respectively. Here, we show that the
entanglement-assisted paradigm simplifies the theory of quantum turbo codes, in
the sense that an entanglement-assisted quantum (EAQ) convolutional encoder can
possess both of the aforementioned desirable properties. We give several
examples of EAQ convolutional encoders that are both recursive and
non-catastrophic and detail their relevant parameters. We then modify the
quantum turbo decoding algorithm of Poulin et al., in order to have the
constituent decoders pass along only 'extrinsic information' to each other
rather than a posteriori probabilities as in the decoder of Poulin et al., and
this leads to a significant improvement in the performance of unassisted
quantum turbo codes. Other simulation results indicate that
entanglement-assisted turbo codes can operate reliably in a noise regime 4.73
dB beyond that of standard quantum turbo codes, when used on a memoryless
depolarizing channel. Furthermore, several of our quantum turbo codes are
within 1 dB or less of their hashing limits, so that the performance of quantum
turbo codes is now on par with that of classical turbo codes. Finally, we prove
that entanglement is the resource that enables a convolutional encoder to be
both non-catastrophic and recursive because an encoder acting on only
information qubits, classical bits, gauge qubits, and ancilla qubits cannot
simultaneously satisfy them.
Willey, K & Gardner, A 2010, 'Investigating the capacity of self and peer assessment activities to engage students and promote learning', European Journal of Engineering Education, vol. 35, no. 4, pp. 429-443.
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The authors have previously reported the effectiveness of using self and peer assessment to improve learning outcomes by providing opportunities to practise, assess and provide feedback on students' attribute development. Despite this work and the research of others, a significant number of students and, indeed, many academics focus on the free-rider deterrent capability of self and peer assessment, rather than its capacity to provide opportunities for developing judgement and facilitating reflection and feedback to complete the learning cycle. The advent of web-based tools such as SPARKPLUS allows the frequent and efficient implementation of self and peer assessment activities even in large classes. This article reports the results of an investigation into whether the regular use of self and peer assessment in different contexts promoted effective peer learning, increased engagement and encouraged students to learn.
Wroe, S, Ferrara, TL, McHenry, CR, Curnoe, D & Chamoli, U 2010, 'The craniomandibular mechanics of being human', Proceedings of the Royal Society B: Biological Sciences, vol. 277, no. 1700, pp. 3579-3586.
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Diminished bite force has been considered a defining feature of modern
Homo sapiens
, an interpretation inferred from the application of two-dimensional lever mechanics and the relative gracility of the human masticatory musculature and skull. This conclusion has various implications with regard to the evolution of human feeding behaviour. However, human dental anatomy suggests a capacity to withstand high loads and two-dimensional lever models greatly simplify muscle architecture, yielding less accurate results than three-dimensional modelling using multiple lines of action. Here, to our knowledge, in the most comprehensive three-dimensional finite element analysis performed to date for any taxon, we ask whether the traditional view that the bite of
H. sapiens
is weak and the skull too gracile to sustain high bite forces is supported. We further introduce a new method for reconstructing incomplete fossil material. Our findings show that the human masticatory apparatus is highly efficient, capable of producing a relatively powerful bite using low muscle forces. Thus, relative to other members of the superfamily Hominoidea, humans can achieve relatively high bite forces, while overall stresses are reduced. Our findings resolve apparently discordant lines of evidence, i.e. the presence of teeth well adapted to sustain high loads within a lightweight cranium and mandible.
Wu, C, Fattori, G, Whittaker, A & Oehlers, DJ 2010, 'Investigation of Air-Blast Effects from Spherical-and Cylindrical-Shaped Charges', International Journal of Protective Structures, vol. 1, no. 3, pp. 345-362.
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Although the distributions of peak incident overpressure and impulse generated from spherical charges and cylindrical charges of the same weight can differ greatly close to the point of detonation, spherical charges are assumed for nearly all explosive-effects computations per modern standards for blast-resistant design such as UFC-3-340-02 and the soon-to-be published ASCE Standard for the Blast Protection of Buildings. A blast-testing program was performed using a reinforced concrete slab as the target to investigate the reflected peak overpressure and impulse distributions as a function of charge shape, orientation, and scaled distance. The charge shapes were cylindrical and spherical, and the charge mass varied from 0.24 to 8.0 kg. Nine pressure transducers were installed on the surface of the slab to record the distribution of pressure histories over the face of the target. A finite element model of the explosive and the target was validated using the experimental data. The validated model was then used to undertake a parametric analysis to more broadly study the effects of detonation point, ratio of charge length to charge diameter, charge orientation and standoff distance on the distribution of reflected overpressure. Numerical results are compared with predictions of UFC-3-340-02. For cylindrical charges, the ratio of charge length ( L) to diameter ( D), the orientation of the longitudinal axis of the charge, and detonation point within the charge affected the distributions of reflected peak overpressure and impulse in the immediate vicinity of the explosive. The UFC-3-340-02 underpredicts substantially the reflected peak overpressure and impulse on a target aligned with the vertical axis of a cylindrical charge with an aspect ratio of 1.0.
Wu, F, Wang, W, Yang, Y, Zhuang, Y & Nie, F 2010, 'Classification by semi-supervised discriminative regularization', Neurocomputing, vol. 73, no. 10-12, pp. 1641-1651.
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Xiao, Y, Liu, B, Luo, D, Cao, L, Deng, F & Hao, Z 2010, 'Multi-agent system for customer relationship management with SVMs tool', International Journal of Intelligent Information and Database Systems, vol. 4, no. 2, pp. 121-121.
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In this paper, we introduce multiple agents, knowledge discovery and data mining into customer relationship management (CRM) to set up the architecture of a multi-agent-based CRM system (MAB-CRM), and then use the SVMs-based approach to build up the decision support model which can classify the patterns obtained by the multiple agents into several decision levels, so that managers can pursue different decision-making activities according to the decision level of a pattern. Substantial experiments in the two-dimensional space show how the SVMs-based approach works. The practical problem from one Chinese company has been resolved by the SVMs-based approach. The results illustrate that this approach has an effective ability to learn the decision rules from the assessors' experience.
Xiaohua Xia & Jiangfeng Zhang 2010, 'Geometric Steady States of Nonlinear Systems', IEEE Transactions on Automatic Control, vol. 55, no. 6, pp. 1448-1454.
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Xie, W-M, Ni, B-J, Sheng, G-P, Yu, H-Q & Yang, M 2010, 'Substrate consumption and excess sludge reduction of activated sludge in the presence of uncouplers: a modeling approach', Applied Microbiology and Biotechnology, vol. 85, no. 6, pp. 2001-2008.
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Xie, W-M, Ni, B-J, Zeng, RJ, Sheng, G-P, Yu, H-Q, Song, J, Le, D-Z, Bi, X-J, Liu, C-Q & Yang, M 2010, 'Formation of soluble microbial products by activated sludge under anoxic conditions', Applied Microbiology and Biotechnology, vol. 87, no. 1, pp. 373-382.
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Xing, W, Guo, W, Ngo, H-H, Cullum, P & Listowski, A 2010, 'Integration of Inorganic Micronutrients and Natural Starch Based Cationic Flocculant in Primary Treated Sewage Effluent (PTSE) Treatment', SEPARATION SCIENCE AND TECHNOLOGY, vol. 45, no. 5, pp. 619-625.
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In this study, a natural starch-based cationic flocculant (SBCF) was first evaluated using a granular activated carbon fluidized-bed bioreactor (GAC-FBBR) to treat a high strength synthetic domestic wastewater (primary treated sewage effluent) containing
Xing, W, Ngo, H-H, Guo, W, Wu, Z, Nguyen, TT, Cullum, P, Listowski, A & Yang, N 2010, 'Enhancement of the performance of anaerobic fluidized bed bioreactors (AFBBRs) by a new starch based flocculant', SEPARATION AND PURIFICATION TECHNOLOGY, vol. 72, no. 2, pp. 140-146.
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In this study, laboratory-scale anaerobic fluidized bed bioreactors (AFBBRs) using granular activated carbon as bedding material were employed for treating a primary treated sewage effluent (PTSE) with or without refractory organic pollutants (ROPs). A n
Xu, RYD & Kemp, M 2010, 'An iterative approach for fitting multiple connected ellipse structure to silhouette', Pattern Recognition Letters, vol. 31, no. 13, pp. 1860-1867.
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In many image processing applications, the structures conveyed in the image contour can often be described by a set of connected ellipses. Previous fitting methods to align the connected ellipse structure with a contour, in general, lack a continuous solution space. In addition, the solution obtain often satisfies only a partial number of ellipses, leaving others with poor fits. In this paper, we address these two problems by presenting an iterative framework for fitting a 2D silhouettte contour to a pre-specified connected ellipses structure with a very coarse initial guess. Under the proposed framework, we first improve the initial guess by modelling the silhouette region as set of disconnected ellipses using mixture of Gaussian densities or the heuristics approaches. Then, an iterative method is applied in a similar fashion to the Iterative Closest Point (ICP) (Alshawa, 2007; Li and Griffiths, 2000; Besl and McKay, 1992) algorithm. Each iteration contains two parts: first part is to assighn all the contour points to the individual unconnected ellipses, which we refer to as the segmentation step and the second part is the non-linear least square approach that minimizes both the sum of the square distance between the countour points and ellipse's edge as well as minimizing the ellipse's vertex pair(s) distances, which we refer to as the minimization step. We illustrate the effectiveness of our menthods through experimental result on several images as well as applying the algorithm to a mini database of human upper-body images.
Xu, W, Zhu, JG, Zhang, Y, Li, Z, Li, Y, Wang, Y, Guo, Y & Li, Y 2010, 'Equivalent Circuits for Single-Sided Linear Induction Motors', IEEE Transactions on Industry Applications, vol. 46, no. 6, pp. 2410-2423.
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Single-sided linear induction motors (SLIMs) have lately been applied in transportation system traction drives, particularly in the intermediate speed range. This is because they have merits, such as the ability to exert thrust on the secondary without mechanical contact, high acceleration or deceleration, less wheel wear, small turning circle radius, and flexible road line. The theory of operation for these machines can be directly derived from rotary induction motors (RIMs). However, while the cut-open primary magnetic circuit has many inherent characteristics of the RIM equivalent circuits, several issues involving the transversal edge and longitudinal end effects and the half-filled slots at the primary ends need to be investigated. In this paper, a T-model equivalent circuit is proposed which is based on the 1-D magnetic equations of the air gap, where half-filled slots are considered by an equivalent pole number. Among the main five parameters, namely, the primary resistance, primary leakage inductance, mutual inductance, secondary resistance, and secondary inductance, the mutual inductance and the secondary resistance are influenced by the edge and end effects greatly, which can be revised by four relative coefficients, i.e., Kr, Kx, Cr, and Cx. Moreover, two-axis equivalent circuits (dq or αβ) according to the T-model equivalent circuit are obtained using the power conversion rule, which are analogous with those of the RIM in a two-axis coordinate system. The linear induction motor dynamic performance, particularly the mutual inductance and the secondary resistance, can be analyzed by the four coefficients. Experimental verification indicates that both the T-model and the new two-axis circuits are reasonable for describing the steady and dynamic performance of the SLIM. These two models can provide good guidance for the electromagnetic design and control scheme implementation for SLIM applications.
Xu, XX, Nie, FL, Zhang, JX, Zheng, W, Zheng, YF, Hu, C & Yang, G 2010, 'Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception', Materials Letters, vol. 64, no. 4, pp. 524-527.
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Yan Hai-Feng, Yu Zhong-Yuan, Tian Hong-Da, Liu Yu-Min & Han Li-Hong 2010, 'Investigation on propagation and nonlinearity of an octagonal photonic crystal fiber', Acta Physica Sinica, vol. 59, no. 5, pp. 3273-3273.
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The finite element method is used to investigate the propagation and nonlinearity of octagonal photonic crystal fibers of total internal reflection type. We changed the structural parameters of the fibers and obtained the curves of relations about the propagation and nonlinearity. At last, we found another structure of photonic crystal fiber. It is demonstrated that it is possible to design a low-loss dispersion-flattened PCF at 1.55 micrometer wavelength. © 2010 Chin. Phys. Soc.
Yan, Z, Wen, B, Wang, C, Huang, J & Huang, X 2010, 'Phase-coded interrupted continuous waves analysis, parameters design and processor design', IEICE Electronics Express, vol. 7, no. 19, pp. 1441-1446.
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Yang Wang 2010, 'Joint Random Field Model for All-Weather Moving Vehicle Detection', IEEE Transactions on Image Processing, vol. 19, no. 9, pp. 2491-2501.
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Yang, J, Wen, B, Zhang, C, Huang, X, Yan, Z & Shen, W 2010, 'A bistatic HF radar for surface current mapping', IEICE Electronics Express, vol. 7, no. 19, pp. 1435-1440.
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Yang, X, Lu, J & Zhang, G 2010, 'Adaptive pruning algorithm for least squares support vector machine classifier', SOFT COMPUTING, vol. 14, no. 7, pp. 667-680.
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As a new version of support vector machine (SVM), least squares SVM (LS-SVM) involves equality instead of inequality constraints and works with a least squares cost function. A well-known drawback in the LSSVM applications is that the sparseness is lost. In this paper, we develop an adaptive pruning algorithm based on the bottom-to-top strategy, which can deal with this drawback. In the proposed algorithm, the incremental and decremental learning procedures are used alternately and a small support vector set, which can cover most of the information in the training set, can be formed adaptively. Using this set, one can construct the final classifier. In general, the number of the elements in the support vector set is much smaller than that in the training set and a sparse solution is obtained. In order to test the efficiency of the proposed algorithm, we apply it to eight UCI datasets and one benchmarking dataset. The experimental results show that the presented algorithm can obtain adaptively the sparse solutions with losing a little generalization performance for the classification problems with no-noises or noises, and its training speed is much faster than sequential minimal optimization algorithm (SMO) for the large-scale classification problems with no-noises.
Yang, X, Lu, J & Zhang, G 2010, 'Adaptive pruning algorithm for least squares support vector machine classifier', Soft Computing, vol. 14, no. 7, pp. 667-680.
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As a new version of support vector machine (SVM), least squares SVM (LS-SVM) involves equality instead of inequality constraints and works with a least squares cost function. A well-known drawback in the LS-SVM applications is that the sparseness is lost. In this paper, we develop an adaptive pruning algorithm based on the bottom-to-top strategy, which can deal with this drawback. In the proposed algorithm, the incremental and decremental learning procedures are used alternately and a small support vector set, which can cover most of the information in the training set, can be formed adaptively. Using this set, one can construct the final classifier. In general, the number of the elements in the support vector set is much smaller than that in the training set and a sparse solution is obtained. In order to test the efficiency of the proposed algorithm, we apply it to eight UCI datasets and one benchmarking dataset. The experimental results show that the presented algorithm can obtain adaptively the sparse solutions with losing a little generalization performance for the classification problems with no-noises or noises, and its training speed is much faster than sequential minimal optimization algorithm (SMO) for the large-scale classification problems with no-noises. © Springer-Verlag 2009.
Yang, Y, Wu, F, Xu, D, Zhuang, Y & Chia, L-T 2010, 'Cross-media retrieval using query dependent search methods', Pattern Recognition, vol. 43, no. 8, pp. 2927-2936.
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Yang, Y, Zhuang, Y, Tao, D, Xu, D, Yu, J & Luo, J 2010, 'Recognizing Cartoon Image Gestures for Retrieval and Interactive Cartoon Clip Synthesis.', IEEE Trans. Circuits Syst. Video Technol., vol. 20, no. 12, pp. 1745-1756.
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In this paper, we propose a new method to recognize gestures of cartoon images with two practical applications, i.e., content-based cartoon image retrieval and interactive cartoon clip synthesis. Upon analyzing the unique properties of four types of features including global color histogram, local color histogram (LCH), edge feature (EF), and motion direction feature (MDF), we propose to employ different features for different purposes and in various phases. We use EF to define a graph and then refine its local structure by LCH. Based on this graph, we adopt a transductive learning algorithm to construct local patches for each cartoon image. A spectral method is then proposed to optimize the local structure of each patch and then align these patches globally. MDF is fused with EF and LCH and a cartoon gesture space is constructed for cartoon image gesture recognition. We apply the proposed method to content-based cartoon image retrieval and interactive cartoon clip synthesis. The experiments demonstrate the effectiveness of our method.
Yanq, T, Kecrnan, V & Cao, L 2010, 'Classification by ALH-fast algorithm', Tsinghua Science and Technology, vol. 15, no. 3, pp. 275-280.
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The adaptive local hyperplane (ALH) algorithm is a very recently proposed classifier, which has been shown to perform better than many other benchmarking classifiers including support vector machine (SVM), K-nearest neighbor (KNN), linear discriminant analysis (LDA), and K-local hyperplane distance nearest neighbor (HKNN) algorithms. Although the ALH algorithm is well formulated and despite the fact that it performs well in practice, its scalability over a very large data set is limited due to the online distance computations associated with all training instances. In this paper, a novel algorithm, called ALH-Fast and obtained by combining the classification tree algorithm and the ALH, is proposed to reduce the computational load of the ALH algorithm. The experiment results on two large data sets show that the ALH-Fast algorithm is both much faster and more accurate than the ALH algorithm.
Yi Yang, Dong Xu, Feiping Nie, Shuicheng Yan & Yueting Zhuang 2010, 'Image Clustering Using Local Discriminant Models and Global Integration', IEEE Transactions on Image Processing, vol. 19, no. 10, pp. 2761-2773.
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Yin, B, Ambikairajah, E & Chen, F 2010, 'Language-Dependent Contribution Measuring and Weighting for Combining Likelihood Scores in Language Identification Systems', Journal of Signal Processing Systems, vol. 59, no. 2, pp. 201-210.
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Ying Zhang, Xuemin Lin, Wenjie Zhang, Jianmin Wang & Qianlu Lin 2010, 'Effectively Indexing the Uncertain Space', IEEE Transactions on Knowledge and Data Engineering, vol. 22, no. 9, pp. 1247-1261.
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With the rapid development of various optical, infrared, and radar sensors and GPS techniques, there are a huge amount of multidimensional uncertain data collected and accumulated everyday. Recently, considerable research efforts have been made in the field of indexing, analyzing, and mining uncertain data. As shown in a recent book on uncertain data, in order to efficiently manage and mine uncertain data, effective indexing techniques are highly desirable. Based on the observation that the existing index structures for multidimensional data are sensitive to the size or shape of uncertain regions of uncertain objects and the queries, in this paper, we introduce a novel R-Tree-based inverted index structure, named UI-Tree, to efficiently support various queries including range queries, similarity joins, and their size estimation, as well as top-k range query, over multidimensional uncertain objects against continuous or discrete cases. Comprehensive experiments are conducted on both real data and synthetic data to demonstrate the efficiency of our techniques.
Ying, M 2010, 'Quantum computation, quantum theory and AI', ARTIFICIAL INTELLIGENCE, vol. 174, no. 2, pp. 162-176.
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The main purpose of this paper is to examine some (potential) applications of quantum computation in AI and to review the interplay between quantum theory and AI. For the readers who are not familiar with quantum computation, a brief introduction to it i
Ying, M & Feng, Y 2010, 'Quantum loop programs', ACTA INFORMATICA, vol. 47, no. 4, pp. 221-250.
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Loop is a powerful program construct in classical computation, but its power is still not exploited fully in quantum computation. The exploitation of such power definitely requires a deep understanding of the mechanism of quantum loop programs. In this paper, we introduce a general scheme of quantum loops and describe its computational process. The function computed by a quantum loop is defined, and a denotational semantics and a weakest precondition semantics of a quantum loop are given. The notions of termination and almost termination are proposed for quantum loops. This paper only consider the case of finite-dimensional state spaces. Necessary and sufficient conditions for termination and almost termination of a general quantum loop on any mixed input state are presented. A quantum loop is said to be (almost) terminating if it (almost) terminates on any input state. We show that a quantum loop is almost terminating if and only if it is uniformly almost terminating. It is observed that a small disturbance either on the unitary transformation in the loop body or on the measurement in the loop guard can make any quantum loop (almost) terminating, provided that some dimension restriction is satisfied. Moreover, a representation of the function computed by a quantum loop is given in terms of finite summations of matrices. To illustrate the notions and results obtained in this paper, two simple classes of quantum loop programs, one qubit quantum loops, and two qubit quantum loops defined by controlled gates, are carefully examined, and to show their expressive power, quantum loops are applied in describing quantum walks.
Yisgedu, TB, Chen, X, Lingam, HK, Huang, Z, Meyers, EA, Shore, SG & Zhao, J-C 2010, 'Intermolecular dihydrogen- and hydrogen-bonding interactions in diammoniumcloso-decahydrodecaborate sesquihydrate', Acta Crystallographica Section C Crystal Structure Communications, vol. 66, no. 1, pp. m1-m3.
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Yongjian Li, Qingxin Yang, Jianguo Zhu, Zhiwei Lin, Youguang Guo & Jingfeng Sun 2010, 'Research of Three-Dimensional Magnetic Reluctivity Tensor Based on Measurement of Magnetic Properties', IEEE Transactions on Applied Superconductivity, vol. 20, no. 3, pp. 1932-1935.
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In this paper, a method of studying the three-dimensional (3-D) reluctivity tensor by measuring 3-D vector magnetic properties of the soft magnetic composite (SMC) material is presented. The magnetic flux density B and magnetic field strength H loci under alternating and rotating magnetizations are measured by using an improved 3-D tester. The magnetic reluctivity tensor can be expressed by a second-order three-dimensional full rank matrix by means of the experimental results. Taking the off-diagonal elements into account can benefit to accurate numerical analysis of magnetic field in 3-D flux electrical machines.
Yu, N, Chitambar, E, Guo, C & Duan, R 2010, 'Tensor rank of the tripartite state vertical bar W >(circle times n)', PHYSICAL REVIEW A, vol. 81, no. 1, pp. 1-3.
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Tensor rank refers to the number of product states needed to express a given multipartite quantum state. Its nonadditivity as an entanglement measure has recently been observed. In this Brief Report, we estimate the tensor rank of multiple copies of the
Yu, N, Duan, R & Ying, M 2010, 'Optimal simulation of a perfect entangler', PHYSICAL REVIEW A, vol. 81, no. 3, pp. 1-4.
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A2 circle times 2 unitary operation is called a perfect entangler if it can generate a maximally entangled state from some unentangled input. We study the following question: How many runs of a given two-qubit entangling unitary operation are required to
Yu, Y-H, Vo-Ky, C, Kodagoda, S & Ha, QP 2010, 'FPGA-Based Relative Distance Estimation for Indoor Robot Control Using Monocular Digital Camera', Journal of Advanced Computational Intelligence and Intelligent Informatics, vol. 14, no. 6, pp. 714-721.
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Distance measurement methodologies based on the digital camera usually require time-consuming calibration procedures, some are even derived from complicated image processing algorithms resulting in low picture frame rates. In a dynamic camera system, due to the unpredictability of intrinsic and extrinsic parameters, odometric results are highly dependent on the quality of extra sensors. In this paper, a simple and efficient algorithm is proposed for relative distance estimation in robotic active vision by using a monocular digital camera. Accuracy of the estimation is achieved by judging the 2D perspective projection image ratio of the robot labels obtained on a TFT-LCD (Thin Film Transistor – Liquid Crystal Display) monitor without the need of any additional sensory cost and complicated calibration effort. Further, the proposed algorithm does not contain any trigonometric functions so that it can be easily implemented on an embedded system using the Field Programmable Gate Array (FPGA) technology. Experimental results are included to demonstrate the effectiveness of the technique.
Zargari, SA, Siabil, SZ, Alavi, AH & Gandomi, AH 2010, 'A computational intelligence-based approach for short-term traffic flow prediction', Expert Systems, vol. 29, no. 2, pp. no-no.
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Zeibots, ME 2010, 'The travel plan revolution?', Indesign, vol. 43, pp. 226-227.
Zeibots, ME & Bell, DR 2010, 'Peak oil and the advent of demand destruction: implications for transport and access in Australian cities', Australian Planner, vol. 47, no. 4, pp. 253-262.
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This article examines the implications of peak oil on the physical and money systems of the Australian economy, describinghow over-reliance on private motor vehicles can expose the economy to the risks of demand destruction.
Zeng, T & Li, J 2010, 'Maximization of negative correlations in time-course gene expression data for enhancing understanding of molecular pathways', Nucleic Acids Research, vol. 38, no. 1, pp. e1-e1.
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Zhang, G & Lu, J 2010, 'Fuzzy bilevel programming with multiple objectives and cooperative multiple followers', JOURNAL OF GLOBAL OPTIMIZATION, vol. 47, no. 3, pp. 403-419.
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Classic bilevel programming deals with two level hierarchical optimization problems in which the leader attempts to optimize his/her objective, subject to a set of constraints and his/her followerâs solution. In modelling a real-world bilevel decision problem, some uncertain coefficients often appear in the objective functions and/or constraints of the leader and/or the follower. Also, the leader and the follower may have multiple conflicting objectives that should be optimized simultaneously. Furthermore, multiple followers may be involved in a decision problem and work cooperatively according to each of the possible decisions made by the leader, but with different objectives and/or constraints. Following our previous work, this study proposes a set of models to describe such fuzzy multi-objective, multi-follower (cooperative) bilevel programming problems. We then develop an approximation Kth-best algorithm to solve the problems.
Zhang, G, Lu, J, Montero, J & Zeng, Y 2010, 'Model, solution concept, and Kth-best algorithm for linear trilevel programming', INFORMATION SCIENCES, vol. 180, no. 4, pp. 481-492.
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Trilevel programming refers to hierarchical optimization problems in which the top-level, middle-level, and bottom-level decision entities all attempt to optimize their individual objectives, but are impacted by the actions and partial control exercised by decision entities located at other levels. To solve this complex problem, in this study first we propose the use of a general linear trilevel programming (LTLP) subsequently, we develop a trilevel Kth-best algorithm to solve LTLP problems. A user-friendly trilevel decision support tool is also developed. A case study further illustrates the effectiveness of the proposed method.
Zhang, H, Zhou, R, Wu, Z, Xin, H & Ziolkowski, RW 2010, 'Designs of ultra wideband (UWB) printed elliptical monopole antennas with slots', Microwave and Optical Technology Letters, vol. 52, no. 2, pp. 466-471.
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Zhang, R, Castel, A & François, R 2010, 'Concrete cover cracking with reinforcement corrosion of RC beam during chloride-induced corrosion process', Cement and Concrete Research, vol. 40, no. 3, pp. 415-425.
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Zhang, RJ, Castel, A & François, R 2010, 'Effect of steel corrosion pattern on RC beam performance', Proceedings of the Institution of Civil Engineers - Construction Materials, vol. 163, no. 2, pp. 97-108.
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Chloride-induced corrosion in reinforced concrete leads to a reduction of the steel cross-section and deterioration of the steel–concrete bond. In this paper, experimental results are presented in order to clarify the respective influence of these degradations on beam serviceability (deflection). Pitting corrosion simulations were performed and two naturally corroded beams (14 and 23 years old) were analysed. Corrosion simulations have shown that the reduction in steel cross-section due to local pitting corrosion does not affect serviceability. Increased deflection is due to deterioration of the steel-concrete bond (reduction of concrete tension stiffening). Experimental results obtained on two corroded beams broken and analysed after 14 years and 23 years of chloride exposure showed that, during the natural chloride-induced corrosion process, the corrosion pattern evolves in relation to the corrosion cracking. Localised pitting corrosion is responsible for the initiation of corrosion cracking. Then, as the width of the cracks develops, general corrosion becomes gradually the main corrosion pattern. According to these experimental results, a mechanical model is proposed for serviceability assessment, which takes into account the evolution of the corrosion pattern from local pitting corrosion to general reinforcement corrosion.
Zhang, T, Zhang, G, Ma, J & Lu, J 2010, 'Power Distribution System Planning Evaluation by a Fuzzy Multi-Criteria Group Decision Support System', International Journal of Computational Intelligence Systems, vol. 3, no. 4, pp. 474-474.
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Zhang, T, Zhang, G, Ma, J & Lu, J 2010, 'Power Distribution System Planning Evaluation by a Fuzzy Multi-Criteria Group Decision Support System', INTERNATIONAL JOURNAL OF COMPUTATIONAL INTELLIGENCE SYSTEMS, vol. 3, no. 4, pp. 474-485.
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The evaluation of solutions is an important phase in power distribution system planning (PDSP) which allows issues such as quality of supply, cost, social service and environmental implications to be considered and usually involves the judgments of a group of experts. The planning problem is thus suitable for the multi-criteria group decision-making (MCGDM) method. The evaluation process and evaluation criteria often involve uncertainties incorporated in quantitative analysis with crisp values and qualitative judgments with linguistic terms; therefore, fuzzy sets techniques are applied in this study. This paper proposes a fuzzy multi-criteria group decision-making (FMCGDM) method for PDSP evaluation and applies a fuzzy multi-criteria group decision support system (FMCGDSS) to support the evaluation task. We introduce a PDSP evaluation model, which has evaluation criteria within three levels, based on the characteristics of a power distribution system. A case-based example is performed on a test distribution network and demonstrates how all the problems in a PDSP evaluation are addressed using FMCGDSS. The results are acceptable to expert evaluators.
Zhang, W, Lin, X, Zhang, Y, Pei, J & Wang, W 2010, 'Threshold-based probabilistic top-k dominating queries', The VLDB Journal, vol. 19, no. 2, pp. 283-305.
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Recently, due to intrinsic characteristics in many underlying data sets, a number of probabilistic queries on uncertain data have been investigated. Top-k dominating queries are very important in many applications including decision making in a multidimensional space. In this paper, we study the problem of efficiently computing top-k dominating queries on uncertain data. We first formally define the problem. Then, we develop an efficient, threshold-based algorithm to compute the exact solution. To overcome some inherent computational deficiency in an exact computation, we develop an efficient randomized algorithm with an accuracy guarantee. Our extensive experiments demonstrate that both algorithms are quite efficient, while the randomized algorithm is quite scalable against data set sizes, object areas, k values, etc. The randomized algorithm is also highly accurate in practice.
Zhang, X, Jiang, Z, Wei, D, Liu, X & Wang, G 2010, 'Analysis of Casting Roll during Twin-Roll Thin Strip Casting', STEEL RESEARCH INTERNATIONAL, vol. 81, no. 9, pp. 138-141.
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In twin-roll thin strip casting, the temperature of a casting roll affects the roll thermal stress, and influences the thermal deformation, the generation of roll surface cracks, the strip shape and the service life of the casting roll. In this paper, the features of the clad materials of the casting roll have been analysed, the effect of the clad thickness on the temperature field and thermal stress of casting roll has been simulated and discussed. The results show that the thick clad results in the increase of thermal resistance and then causes higher surface temperature of the clad layer, but lower temperature of copper roll sleeve. The heat expansion of the clad layer increases when the clad thickness decreases. The developed temperature model of the casting roll is helpful in optimising the design of the casting roll during twin-roll thin strip casting.
Zhang, Y, Lin, X, Yuan, Y, Kitsuregawa, M, Zhou, X & Yu, JW 2010, 'Duplicate-Insensitive Order Statistics Computation over Data Streams', IEEE Transactions on Knowledge and Data Engineering, vol. 22, no. 4, pp. 493-507.
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Duplicates in data streams may often be observed by the projection on a subspace and/or multiple recordings of objects. Without the uniqueness assumption on observed data elements, many conventional aggregates computation problems need to be further investigated due to their duplication-sensitive nature. In this paper, we present novel, space-efficient, one-scan algorithms to continuously maintain duplicate-insensitive order sketches so that rank-based queries can be approximately processed with a relative rank error guarantee epsilon in the presence of data duplicates. Besides the space efficiency, the proposed algorithms are time-efficient and highly accurate. Moreover, our techniques may be immediately applied to the heavy hitter problem against distinct elements and to the existing fault-tolerant distributed communication techniques. A comprehensive performance study demonstrates that our algorithms can support real-time computation against high-speed data streams.
Zhang, Z, Fu, Q & Huang, J 2010, 'A Simple Way for Synthesis of Alkyne-Telechelic Poly(methyl methacrylate) via Single Electron Transfer Radical Coupling Reaction', Chinese Journal of Chemistry, vol. 28, no. 8, pp. 1327-1330.
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Zhang, Z, Kodagoda, S, Ruiz, D, Katupitiya, J & Dissanayake, G 2010, 'Classification of Bidens in wheat farms', International Journal of Computer Applications in Technology, vol. 39, no. 1-3, pp. 123-129.
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Bidens pilosa L. (commonly known as cobbler’s peg) is an annual broad leaf weed widely distributed in tropical and subtropical regions of the world and is reported to be a weed of 31 crops, including wheat. Automatic detection of Bidens in wheat farms is a non-trivial problem due to their similarity in colour and presence of occlusions. This paper proposes a methodology which could be used to discriminate Bidens from wheat to be used in operations such as autonomous weed destruction. A spectrometer is used to analyse the optical properties of Bidens and wheat leaves while achieving high classification results. However, due to the practical constraints of using spectrometers, a colour camera-based technique is proposed. It is shown that the colour-based segmentation followed by shape-based validation algorithm gives rise to high detection rates with lower false detections. We have experimentally evaluated the algorithm with Bidens detection rate of 80% and a false alarm rate of 10%. © 2010 Inderscience Enterprises Ltd.
Zhao, B-H, Mu, Y, Dong, F, Ni, B-J, Zhao, J-B, Sheng, G-P, Yu, H-Q, Li, Y-Y & Harada, H 2010, 'Dynamic Modeling the Anaerobic Reactor Startup Process', Industrial & Engineering Chemistry Research, vol. 49, no. 16, pp. 7193-7200.
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Zhao, HY, Xu, XX, Zhang, JX, Zheng, W & Zheng, YF 2010, 'Carbon nanotube–hydroxyapatite–hemoglobin nanocomposites with high bioelectrocatalytic activity', Bioelectrochemistry, vol. 78, no. 2, pp. 124-129.
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Zhao, L & Li, J 2010, 'Mining for the antibody-antigen interacting associations that predict the B cell epitopes', BMC Structural Biology, vol. 10, no. Suppl 1, pp. S6-S6.
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Background: Predicting B-cell epitopes is very important for designing vaccines and drugs to fight against the infectious agents. However, due to the high complexity of this problem, previous prediction methods that focus on linear and conformational epi
Zhao, Y-S, Liu, Z-F, Cai, L-G, Yang, W-T, Yang, J & Luo, Z 2010, 'Study of control for the automated clutch of an automated manual transmission vehicle based on rapid control prototyping', Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, vol. 224, no. 4, pp. 475-487.
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Owing to external disturbances, parameter uncertainty, and measurement noise, it has been a challenging task to develop an appropriate controller for the automated clutch system. This paper proposes a new method for electromechanical clutch position control systems. First, a non-linear dynamic model for the screw-nut actuator associated with a clutch is derived, and then a dynamic sliding-mode controller with fuzzy adaptive tuning is developed. The fuzzy adaptive tuning arithmetic is used to improve the robustness and stability of the controller. At the same time, the chattering phenomenon is alleviated by adopting the proposed controller. Based on dSPACE and MATLAB—Simulink, the rapid control prototyping of the automated clutch is used as a method to demonstrate the efficiency and robustness of the proposed algorithm.
Zheng, W, Zhao, HY, Zhang, JX, Zhou, HM, Xu, XX, Zheng, YF, Wang, YB, Cheng, Y & Jang, BZ 2010, 'A glucose/O2 biofuel cell base on nanographene platelet-modified electrodes', Electrochemistry Communications, vol. 12, no. 7, pp. 869-871.
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Zheng, W, Zhao, HY, Zhou, HM, Xu, XX, Ding, MH & Zheng, YF 2010, 'Electrochemistry of bilirubin oxidase at carbon nanotubes', Journal of Solid State Electrochemistry, vol. 14, no. 2, pp. 249-254.
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Zhong, W, Pan, W, Kwok, JT & Tsang, IW 2010, 'Incorporating the Loss Function Into Discriminative Clustering of Structured Outputs', IEEE Transactions on Neural Networks, vol. 21, no. 10, pp. 1564-1575.
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Clustering using the Hilbert Schmidt independence criterion (CLUHSIC) is a recent clustering algorithm that maximizes the dependence between cluster labels and data observations according to the Hilbert Schmidt independence criterion (HSIC). It is unique in that structure information on the cluster outputs can be easily utilized in the clustering process. However, while the choice of the loss function is known to be very important in supervised learning with structured outputs, we will show in this paper that CLUHSIC is implicitly using the often inappropriate zero-one loss. We propose an extension called CLUHSICAL (which stands for Clustering using HSIC and loss) which explicitly considers both the output dependency and loss function. Its optimization problem has the same form as CLUHSIC, except that its partition matrix is constructed in a different manner. Experimental results on a number of datasets with structured outputs show that CLUHSICAL often outperforms CLUHSIC in terms of both structured loss and clustering accuracy.
Zhu, Y, Yang, D & Ma, H 2010, 'One-step fabrication of porous polymeric microcage via electrified jetting', Nanoscale, vol. 2, no. 6, pp. 910-910.
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Zhu, Z, Guo, Y-F, Zhu, X & Xue, X 2010, 'Normalized dimensionality reduction using nonnegative matrix factorization', Neurocomputing, vol. 73, no. 10-12, pp. 1783-1793.
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In this paper, we propose an iterative normalized compression method for dimensionality reduction using non-negative matrix factorization (NCMF). To factorize the instance matrix X into C x M, an objective function is defined to impose the normalization
Zong, Y, Li, M-C, Xu, G-D & Zhang, Y-C 2010, 'High Dimensional Clustering Algorithm Based on Local Significant Units', Journal of Electronics & Information Technology, vol. 32, no. 11, pp. 2707-2712.
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High dimensional clustering algorithm based on equal or random width density grid cannot guarantee high quality clustering results in complicated data sets. In this paper, a High dimensional Clustering algorithm based on Local Significant Unit (HC_LSU) is proposed to deal with this problem, based on the kernel estimation and spatial statistical theory. Firstly, a structure, namely Local Significant Unit (LSU) is introduced by local kernel density estimation and spatial statistical test; secondly, a greedy algorithm named Greedy Algorithm for LSU (GA_LSU) is proposed to quickly find out the local significant units in the data set; and eventually, the single-linkage algorithm is run on the local significant units with the same attribute subset to generate the clustering results. Experimental results on 4 synthetic and 6 real world data sets showed that the proposed high-dimensional clustering algorithm, HC_LSU, could effectively find out high quality clustering results from the highly complicated data sets.