Fatahi, B, Indraratna, B & Khabbaz, H 1970, 'Analysing Soft Ground Improvement Caused by Tree Root Suction', Advances in Measurement and Modeling of Soil Behavior, Geo-Denver 2007, American Society of Civil Engineers, Denver, Colorado, USA, pp. 1-10.
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Bioengineering aspects of native vegetation are currently being evolved to improve soil stiffness, slope stabilisation, and erosion control. Vegetation contributes to weak soil stabilisation through reinforcement of the soil, dissipation of excess pore pressures, and increasing the shear strength by induced matric suction. This paper looks at the way that vegetation influences soil matric suction, shrinkage, and ground settlement. A theoretical model previously developed by the authors for the rate of tree root water uptake together with an associated numerical simulation is used in this study. A conical shape is considered to represent the geometry of the tree root zone. Based on this proposed model, the distribution of moisture and the matric suction profile adjacent to the tree are numerically analysed. Field measurements taken from previously published literature are compared with numerical predictions for further validation. The predicted results compared favourably with the measured results, justifying the assumptions upon which the model was developed. It is desirable to consider the influence zone of tree roots and the improved soil properties in modern geotechnical designs, benefiting from native vegetation.
Fatahi, B, Indraratna, B & Khabbaz, H 1970, 'Enhanced numerical analysis of ground behaviour influenced by tree root suction', Common Ground: Proceedings of the 10th Australia and New Zealand Conference on Geomechanics, Australia New Zealand Geomechanics conference, Coffey Geotechnics, Brisbane, Australia, pp. 142-147.
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Tree roots provide three stabilising functions: (a) reinforcement of the soil, (b) dissipation of excess pore pressures, (c) establishing sufficient matric suction to increase the shear strength. This paper looks at the way that vegetation influences soil moisture content distribution, and ground settlement. A theoretical model previously developed by the authors for the rate of tree root water uptake together with an associated numerical simulation is used in this study. Field measurements taken from literature published previously are compared with the authors' numerical model. The predicted results obtained from the numerical analysis, compared favourably with the field measurements, justifying the assumptions upon which the model was developed.
Feng, M, Dong, G, Li, J, Tan, Y-P & Wong, L 1970, 'Evolution and Maintenance of Frequent Pattern Space When Transactions Are Removed', ADVANCES IN KNOWLEDGE DISCOVERY AND DATA MINING, PROCEEDINGS, 11th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Springer Berlin Heidelberg, Nanjing, PEOPLES R CHINA, pp. 489-497.
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Feuerlicht, G 1970, 'Prerequisites for Successful SOA Adoption', Systems Integration 2007 15th International Conference, International Conference on Systems Integration International Conference, Autori clanku, Praha, pp. 22-25.
Feuerlicht, G 1970, 'Service Aggregation Using Relational Operations on Interface Parameters', International Conference on Service Oriented Computing - Lecture Notes in Computer Science, International Conference on Service Oriented Computing, Springer Berlin Heidelberg, United States, pp. 95-103.
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Many practitioners recommend the use of coarse-grained services that minimize the number of messages and avoid the need to maintain state information between invocations. However, when considered from a software engineering perspective, coarse-grained services suffer from a number of significant drawbacks, including limited reuse and difficult composability. An important challenge for the developers of service-oriented applications is to determine appropriate level of service granularity to ensure that services are reusable and at the same time have good performance characteristics. Decisions about service granularity need to be taken in the context of a methodological framework rather than using ad hoc heuristics. In this paper we describe a method for service aggregation that uses relational operations over interface parameters to assemble services from low granularity atomic service operations. We illustrate the impact of service aggregation on cohesion and coupling using examples and discuss service granularity in the context of application requirements.
Fitch, R, Butler, Z & IEEE 1970, 'Scalable locomotion for large self-reconfiguring robots', PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS 1-10, IEEE International Conference on Robotics and Automation, IEEE, Rome, ITALY, pp. 2248-2253.
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Fokkenrood, S, Leijdekkers, P & Gay, V 1970, 'Ventricular Tachycardia/Fibrillation detection algorithm for 24/7 personal wireless heart monitoring', Pervasive Computing for Quality of Life Enhancement, Proceedings, ICOST, Springer, Nara, Japan, pp. 110-120.
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This paper describes a Ventricular Tachycardia/Fibrillation (VT/VF) detection algorithm that is specifically designed for a 24/7 personal wireless heart monitoring system. This monitoring system uses Bluetooth enabled bio-sensors and smart phones to monitor continuously cardiac patients vital signs. Our VT/VF algorithm is optimized for continuous real-time monitoring on smart phones with a high sensitivity and specificity. We studied and compared existing VT/VF algorithms and selected the one which suited best our requirements. However, we modified and improved the existing algorithm for the smart phone to achieve better performance results. We tested the algorithm on full-length signals from the physionet CU, MIT-db and MIT-vfdb databases [16] without any pre-selection of VT/VF or normal QRS-complex signals. We achieved 97% sensitivity, 98% accuracy and 98% specificity for our implementation which is excellent compared to existing algorithms.
Gandia Sanchez, R, Xiaojing Huang & Kwan-Wu Chin 1970, 'Viability of concurrent transmission and reception for UWB radios over multipath channels', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, AUSTRALIA, pp. 1241-1246.
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Gao, J & Xu, RY 1970, 'Mixture of the Robust L1 Distributions and Its Applications', Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Springer Berlin Heidelberg, pp. 26-35.
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Recently a robust probabilistic L1-PCA model was introduced in [1] by replacing the conventional Gaussian noise model with the Laplacian L1 model. Due to the heavy tail characteristics of the L1 distribution, the proposed model is more robust against data outliers. In this paper, we generalized the L1-PCA into a mixture of L1-distributions so that the model can be used for possible multiclustering data. For the model learning we use the property that the L1 density can be expanded as a superposition of infinite number of Gaussian densities to include a tractable Bayesian learning and inference based on the variational EM-type algorithm. © Springer-Verlag Berlin Heidelberg 2007.
Gao, Y, Lu, J, Zhang, G, Gao, S & PRess, A 1970, 'A bilevel model for railway train set organizing optimization', PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS AND KNOWLEDGE ENGINEERING (ISKE 2007), International Conference on Intelligent Systems and Knowledge Engineering, Atlantis Press, Chengdu, China, pp. 777-782.
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Train Set Organization (TSO) is to arrange the train set in railway freight transportation. Bilevel programming techniques were proposed to solve the Stackelberg game in which play is sequential and cooperation is not permitted. In this paper, an op- timizing model for TSO is developed by the bilevel techniques. First, we analyzed the multiple level nature of management on TSO and simplified it into two levels. Then, a bilevel model for TSO was develop. Finally, this model was further illustrated by applying it on a railway station.
Gao, Y, Zhang, G, Lu, J & Zeng, X 1970, 'A lambda-cut approximate approach to supporting Fuzzy Goal based Bilevel Decision Making in risk management', PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON RISK ANALYSIS AND CRISIS RESPONSE, International Conference on Risk Analysis and Crisis Response, Atlantis Press, Shanghai, China, pp. 132-137.
Ge, Y, Esselle, KP & Bird, TS 1970, 'Wideband Stacked Dielectric Resonator Antennas', 2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, IEEE, Cambridge, ENGLAND, pp. 303-306.
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Geng, X, Wang, L, Li, M, Wu, Q & Smith-Miles, K 1970, 'Distance-driven Fusion of Gait and Face for Human Identification in Video', Proceedings of Image and Vision Computing New Zealand 2007, Image and Vision Computing Conference, Image and Vision Computing New Zealand, Hamilton, New Zealand, pp. 19-24.
Gerber, C, Crews, K & Sigrist, C 1970, 'Accessible and reliable design of stressed-skin panels - An Australian perspective', Progress in Mechanics of Structures and Materials - Proceedings of the 19th Australasian Conference on the Mechanics of Structures and Materials, ACMSM19, Australasian Conference on the Mechanics of Structures and Materials, Taylor & Francis (Balkema), Christchurch, New Zealand, pp. 1017-1022.
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Stressed-skin panel (SSP) technology possesses many advantages and the subject research program has increased the understanding of SSP structures with respect to serviceability and ultimate resistance performance. In order for the building industry to capitalise on the results of this research, it is essential that the codes i.e. AS 1720.1-1997 (Australian Standard™ 1997) should embrace a design procedure enabling the use of the full potential of SSP systems. This paper outlines an amendment proposal to Section 5 of AS 1720.1-1997 that will enable designers to achieve a problem-free and efficient implementation of SSP technology. It focuses on the aspects of the tributary width of the sheathing and the stress determinations in the composite section. The proposed design procedure is both useable and straightforward to implement and satisfies requirements of structural safety and comfortable serviceability. It is based on a solid research background and relates to EC5 (European Committee for Standardisation 1995), which will necessitate some adjustments to fully comply with Australian design standard. © 2007 Taylor & Francis Group, London.
Gerber, C, Crews, K & Sigrist, C 1970, 'Screw- and nail-gluing techniques for wood composite structures', Progress in Mechanics of Structures and Materials - Proceedings of the 19th Australasian Conference on the Mechanics of Structures and Materials, ACMSM19, Australasian Conference on the Mechanics of Structures and Materials, Taylor & Francis (Balkema), Christchurch, New Zealand, pp. 1023-1029.
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Composite systems enhance the structural capacity and reliability of wood solutions for structures. With today engineered wood products and structural adhesives, high performing structures can be constructed. Hybrid assembly techniques that combine mechanical fasteners and an adhesive (screw- and nailgluing techniques) allow manufacturing large dimension composite structures with reasonable infrastructure. They also give full composite properties to the interlayers. Furthermore, these hybrid connections can experience ductility. This paper presents a research on small-scale glued assemblies which were manufactured using screw- and nail-gluing techniques. It discusses qualitative and quantitative analyses that confirmed the full-composite properties and ductility of the interlayers. The analyses also show that superposing the behaviour of both connectors is reasonable to predict the strength and slip modulus of hybrid connections. © 2007 Taylor & Francis Group, London.
Gerber, C, Crews, KI, Sigrist, C & Samali, B 1970, 'Assessment of the composite action in timber stressed-skin panels', Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007), Australasian Congress on Applied Mechanics, Engineers Australia, Brisbane, Queensland, Australia, pp. 184-189.
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In 2002 a large-scale investigation on timber stressed-skin panel (SSP) decks commenced at the University of Technology, Sydney. 27 full-scale specimens, manufactured according to Australian practices in timber construction, were investigated under bending conditions with various load configurations - series of non-destructive and destructive tests. The tests also considered the effects of boundary conditions such as blocking and the influence of defects. The scope of the test analysis included identifying the serviceability behaviour, the load distribution and the composite properties of SSP structures. This paper focuses on the composite action in SSP systems, which is assessed by analysing the profile of the strain distribution in the composite section. The evaluation of two mathematical methods used to estimate the section characteristics of the SSP specimens are also presented in this paper.
Gibson, B, Rollinson, C, Huntington, S, Canning, J, Stevenson, M, Lyytikainen, K, Love, J & Steblina, V 1970, 'Ultra-high Throughput Optical Probes based on Fractal Fibre', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Gibson, B, Rollinson, C, Huntington, S, Canning, J, Stevenson, M, Lyytikainen, K, Love, J & Steblina, V 1970, 'Ultra-high Throughput Optical Probes based on Fractal Fibre', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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A new type of optical probe, based on a Fractal Fibre which is a special class of photonic crystal fibre (PCF) is introduced to directly address the issue of increasing the optical throughput in SNOM probes.
Gide, E & Wu, MX 1970, 'Analysing The Effectiveness of E-Mail Surveys: A Case Study In Australia', 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, IEEE.
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Gide, E & Wu, MX 1970, 'The E-Commerce Divide in Service SMEs Between China And Australia', 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, IEEE.
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Goratti, L, Haapola, J & Oppermann, I 1970, 'Energy consumption of the IEEE Std 802.15.3 MAC protocol in communication link set-up over UWB radio technology', Wireless Personal Communications, 8th International Symposium on Wireless Personal Multimedia Communications, Springer Science and Business Media LLC, Aalborg, DENMARK, pp. 371-386.
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Groothoff, N, Canning, J, Åslund, M & Jackson, S 1970, '193nm photodarkening of Yt terbium doped optical fibre', Optics InfoBase Conference Papers.
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Short wavelength attenuation from photodarkening was induced in ytterbium optical fibre by UV irradiation. Pristine and hydrogenated fibres were compared with latter showing resistance to photodarkening. High temperature annealing of irradiated pristine fibre reduced photodarkening. © 2007 Optical Society of America.
Groothoff, N, Canning, J, Åslund, M & Jackson, S 1970, '193nm Photodarkening of Ytterbium Doped Optical Fibre', Optics InfoBase Conference Papers.
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Short wavelength attenuation from photodarkening was induced in ytterbium optical fibre by UV irradiation. Pristine and hydrogenated fibres were compared with latter showing resistance to photodarkening. High temperature annealing of irradiated pristine fibre reduced photodarkening.
Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Bragg Gratings in Large Diameter Air-Clad Optical Fibre Written with a Femtosecond Laser', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Bragg gratings in large diameter air-clad optical fibre written with a femtosecond laser', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 142-+.
Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Bragg Gratings in Large Diameter Air-Clad Optical Fibre Written with a Femtosecond Laser', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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Fibre Bragg gratings were written into the core of air-clad optical fibre using the point-by-point grating writing method with an 800nm femtosecond laser. Visible wavelength scattering from the grating fringes is shown.
Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Gratings in large diameter air-clad optical fibre using a femtosecond laser', Optics InfoBase Conference Papers.
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Fibre Bragg gratings were written in large diameter (~300μm) air-clad optical fibre using an amplified femtosecond Ti:sapphire laser with a point-by-point method. © 2007 Optical Society of America.
Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Gratings in Large Diameter Air-clad Optical Fibre using a Femtosecond Laser', Optics InfoBase Conference Papers.
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Fibre Bragg gratings were written in large diameter (~300µm) air-clad optical fibre using an amplified femtosecond Ti:sapphire laser with a point-by-point method.
Groothoff, N, Canning, J, Jovanovic, N, Marshall, GD & Withford, MJ 1970, 'Gratings in Large Diameter Air-clad Optical Fibre using a Femtosecond Laser', Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, OSA.
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Groothoff, N, Martelli, C & Canning, J 1970, 'DFB photonic crystal fibre laser with selectable single or dual mode lasing', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 320-322.
Groothoff, N, Martelli, C & Canning, J 1970, 'DFB Photonic Crystal Fibre Laser with Selectable Single or Dual Mode Lasing', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Groothoff, N, Martelli, C & Canning, J 1970, 'DFB Photonic Crystal Fibre Laser with Selectable Single or Dual Mode Lasing', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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Two separate transverse lasing modes are found when pump power is selectively launched into a DFB photonic crystal fibre laser. The second mode has greater interaction with the air-silica structure.
Guo, Y, Chen, J, Zhu, J, Lu, H, Lu, H & Jin, J 1970, 'Development of a PM linear motor for driving HTS maglev vehicle', 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4, International Conference on Electrical Machines and Systems, IEEE, Seoul, SOUTH KOREA, pp. 1300-+.
Guo, Y, Chen, J, Zhu, J, Lu, H, Lu, H & Jin, J 1970, 'Development of a PM Linear Motor for Driving HTS Maglev Vehicle', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Guo, Y, Chen, J, Zhu, J, Lu, H, Lu, H & Jin, J 1970, 'Development of a PM linear motor for driving HTS maglev vehicle', Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, International Conference on Electrical Machines and Systems, IEEE, Seoul, pp. 824-827.
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The phenomenon that a permanent magnet (PM) over a high temperature superconductor (HTS) bulk can produce strong levitation force with self-stabilizing feature has attracted strong interest of application in maglev transportation systems, in which a linear motion drive is an obvious advantage. This paper presents the development of a PM linear synchronous motor drive for a small-scale prototype vehicle which is levitated by PM-HTS bulks. Magnetic field finite element analyses are conducted to compute accurately the key motor parameters such as winding flux, back electromotive force (emf), inductance and cogging force. The steady state characteristic of the motor is predicted by using the classic phasor voltage equation, which can provide a reasonable result if the fundamental components of the applied voltage, back emf and current are dominant. A Matlab/Simulink-based model, capable of considering the dependence of key parameters on the mover position, is built to predict effectively the motor's dynamic performance under a brushless DC (BLDC) control scheme. The simulated results show that the developed linear motor can drive the HTS maglev vehicle prototype at the desired speed.
Guo, Y, Dou, Y, Zhu, J, Zhan, Y & Jin, J 1970, 'Parameter determination and performance analysis of a PM synchronous generator by magnetic field finite element analysis', 2007 Australasian Universities Power Engineering Conference, 2007 Australasian Universities Power Engineering Conference (AUPEC), IEEE, Perth, Australia, pp. 730-733.
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Guo, Y, Dou, Y, Zhu, J, Zhan, Y & Jin, J 1970, 'Parameter Determination and Performance Analysis of a PM Synchronous Generator by Magnetic Field Finite Element Analysis', 2007 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING, VOLS 1-2, Australasian Universities Power Engineering Conference (AUPEC), IEEE, Curtin Univ Technol, Perth, AUSTRALIA, pp. 558-+.
Guo, Y, Zhu, J, Liu, D, Lu, H & Wang, S 1970, 'Application of multi-level multi-domain modeling in the design and analysis of a PM transverse flux motor with SMC core', 2007 INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, VOLS 1-4, 7th International Conference on Power Electronics and Drive Systems (PEDS 2007), IEEE, Bangkok, THAILAND, pp. 275-+.
Guo, Y, Zhu, J, Liu, D, Lu, H & Wang, S 1970, 'Application of Multi-level Multi-domain Modeling in the Design and Analysis of a PM Transverse Flux Motor with SMC Core', 2007 7th International Conference on Power Electronics and Drive Systems, 2007 7th International Conference on Power Electronics and Drive Systems, IEEE, Bangkok, Thailand, pp. 27-31.
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This paper presents the design and analysis of a permanent magnet (PM) transverse flux motor with soft magnetic composite (SMC) core by applying multi-level multi-domain modeling. The design is conducted in two levels. The upper level is composed of a group of equations which describe the electrical and mechanical characteristics of the motor. The lower level consists of two domains: electromagnetic analysis and thermal calculation. The initial design, including structure, materials and major dimensions, is determined according to existing experience and empirical formulae. Then, optimization is carried out at the system level (the upper level) for the best motor performance by optimizing the structural dimensions. To successfully deal with such a multi-level multi-domain optimization problem, an effective modeling with both high computational accuracy and speed is required. For accurately computing the key motor parameters, such as back electromotive force, winding inductance and core loss, magnetic field finite element analysis is performed. The core loss in each element is stored for effective thermal calculation, and the winding inductance and back EMF are stored as a look-up table for effective analysis of the motor's dynamic performance. The presented approach is effective with good accuracy and reasonable computational speed.
Guo, Y, Zhu, J, Lu, H, Wang, S & Jin, J 1970, 'Performance analysis of an SMC transverse flux motor with modified double-sided stator and PM flux concentrating rotor', Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, International Conference on Electrical Machines and Systems, IEEE, Seoul, Korea, pp. 1553-1556.
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This paper presents the design and performance analysis of a three-phase three-stack transverse flux motor with a modified double-sided stator and a permanent magnet (PM) flux concentrating rotor. Both stator and rotor cores employ SOMALOY™500, a new soft magnetic composite (SMC) material specially developed for electrical machine application. By taking advantage of the unique properties of SMC, such as the magnetic isotropy, the motor is designed with three-dimensional (3D) magnetic flux path. To accurately compute the motor parameters and performance, improved formulations are applied in combination with 3D magnetic field finite element analysis. The designed motor shows superior characteristics to laminated machines.
Guo, Y, Zhu, J, Lu, H, Wang, S & Jin, J 1970, 'Performance analysis of an SMC transverse flux motor with modified double-sided stator and PM flux concentrating rotor', 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4, International Conference on Electrical Machines and Systems, IEEE, Seoul, SOUTH KOREA, pp. 1752-+.
Guo, Y, Zhu, J, Lu, H, Wang, S & Jin, J 1970, 'Performance analysis of an SMC transverse flux motor with modified double-sided stator and PM flux concentrating rotor', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Hadgraft, R & Goricanec, J 1970, 'Engineering sustainability?!', ASEE Annual Conference and Exposition, Conference Proceedings.
Hadgraft, RG & Goricanec, JL 1970, 'Student engagement in project-based learning', Proceedings of the Inaugural International Conference on Research in Engineering Education, ICREE.
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In 2003-4, The School of Civil and Chemical Engineering at RMIT University made a strong commitment to project-based learning through the redesign of its major programs: civil and infrastructure engineering, chemical engineering and environmental engineering. A project-based course became one quarter of each semester of each of the three programs, as a means of developing the required graduate capabilities. An important aim of such project-based learning is to bring real engineering problems into the classroom, to engage students in understanding the nature of engineering problems, and also to provide incentive in the acquisition of the seemingly difficult technical skills in other courses. The authors' experiences over many years indicate that such projects work for many, but not all, students. Some students fail to engage in the project work, for various reasons. This project set out to understand the reasons for engagement and non-engagement among first year civil and environmental engineering students. Students want interesting work, and an own-choice project seems to provide this. Being interested was the factor most strongly correlated with both course and program engagement. Student groups also need careful management by tutors so that they properly understand what is required of them (and don't get stressed and waste time in non-productive work). The groupwork component of these projects helps to connect students with other students, which they list as an important motivator for them as they move through first year. Finally, first year students need careful guidance and orientation to their new university environment so that they can develop appropriate study habits as well as appropriate communication and research skills to match what is expected of them. © 2007 ASEE.
Haiwei Lu, Jianguo Zhu, Youguang Guo & Zhiwei Lin 1970, 'A miniature short stroke tubular linear actuator and its control', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Haiwei, L, Jianguo, Z, Youguang, G & Zhiwei, L 1970, 'A miniature short stroke tubular linear actuator and its control', Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, International Conference on Electrical Machines and Systems, IEEE, Seoul, Korea, pp. 1680-1685.
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Miniature actuators are the critical components in the robotic applications with high intelligence, high mobility and small scales. Among various types of actuators, linear actuators show advantages in many aspects. A miniature short stroke PM tubular linear actuator for the micro robotic applications is presented in this paper. The actuator is deliberately designed based on the optimal force capability and a proper sensorless control scheme is developed for the driving of the actuator. Experiment both on the prototype of the actuator and the drive system show the validity of the design.
Hambley, P & Canning, J 1970, 'Preliminary Evaluation of Graded Index Microstructured Polymer Optical Fibre (GIMPOF) for LAN applications', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Hambley, P & Canning, J 1970, 'Preliminary Evaluation of Graded Index Microstructured Polymer Optical Fibre (GIMPOF) for LAN applications', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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The first stages of charcterising the properties of graded index structured optical fibres made from polymer for LAN applications are undertaken. A comparison with commercially available Lucina fibre is made.
Hambley, P, Canning, J & Henry, G 1970, 'Comparison of Tapers in Solid and Microstructured Polymer Optical Fibres', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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A robust and predictable polymer fibre tapering method is reported. Tapering results are presented and different ubre types, both conventional and structured, are compared.
Hambley, P, Canning, J & Henry, G 1970, 'Comparison of Tapers in Solid and Microstructured Polymer Optical Fibres', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Hambley, P, Canning, J & Henry, G 1970, 'Comparison of tapers in solid and microstructured polymer optical fibres', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 124-+.
Hamilton, TJ, Jin, C & van Schaik, A 1970, 'A Basilar Membrane Resonator for an Active 2-D Cochlea', 2007 IEEE International Symposium on Circuits and Systems, 2007 IEEE International Symposium on Circuits and Systems, IEEE, pp. 2387-2390.
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In this paper we present a Basilar Membrane Resonator design for an Active 2-D Cochlea. It incorporates some of the non-linear behaviour exhibited in the real cochlea by utilizing a quality factor control loop. This control loop varies the gain and the frequency selectivity of the resonator based on the amplitude of the input signal. © 2007 IEEE.
Hamilton, TJ, Jin, C, Tapson, J & van Schaik, A 1970, 'A 2-D Cochlea with Hopf Oscillators', 2007 IEEE Biomedical Circuits and Systems Conference, 2007 IEEE Biomedical Circuits and Systems Conference, IEEE, pp. 91-94.
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In this paper we present the circuits for a 2-D silicon cochlea whose basilar membrane resonant elements are constructed using oscillators whose dynamic behaviour is governed by the Hopf differential equation. By using Hopf oscillators we are able to model some of the behaviour of the outer hair cells (OHCs) whose action is responsible for the cochlea's nonlinear behaviour. © 2007 IEEE.
Hanham, S, Bird, T & Johnston, B 1970, 'A ring slot excited dielectric rod antenna for terahertz imaging', 2007 IEEE Antennas and Propagation Society International Symposium, 2007 IEEE Antennas and Propagation Society International Symposium, IEEE, pp. 5539-5542.
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Hawryszkiewycz, IT 1970, 'Aligning collaborative technologies to emerging knowledge processes', 2007 International Symposium on Collaborative Technologies and Systems, 2007 International Symposium on Collaborative Technologies and Systems (CTS), IEEE, Florida, USA, pp. 304-311.
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The paper addresses issues in aligning collaborative technologies to knowledge management processes. It describes a generic process of knowledge management and identifies important characteristics that distinguish it from most other processes. These include support of communities but what is important is that new communities emerge during the process and the process itself can change. Technology must coevolve with this evolution to ensure continuity. The paper proposes computer system architecture based on collaborative technologies to support the process. The architecture uses a community model of knowledge management and aligns communities to different levels of collaboration
Hawryszkiewycz, IT 1970, 'Lightweight Technologies for Knowledge Based Collaborative Applications', The 9th IEEE International Conference on E-Commerce Technology and The 4th IEEE International Conference on Enterprise Computing, E-Commerce and E-Services (CEC-EEE 2007), The 9th IEEE International Conference on E-Commerce Technology and The 4th IEEE International Conference on Enterprise Computing, E-Commerce and E-Services (CEC-EEE 2007), IEEE, Tokyo, Japan, pp. 255-264.
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The paper describes ways to use collaborative technologies to support activities in knowledge based processes. It stresses the importance of matching the technology to the activity. It also defines that activities change to the process and the technology must coevolve with the processes by providing services that change as the process evolves. The paper defines the technologies needed at the different activities together with a platform to support these services and ways for the services to coevolve with the process. A prototype based on workspace technology showing such evolution is described.
Hawryszkiewycz, IT 1970, 'Technical strategies for supporting the evolution of collaboration', 2007 11th International Conference on Computer Supported Cooperative Work in Design, 2007 11th International Conference on Computer Supported Cooperative Work in Design, IEEE, Melbourne, Australia, pp. 13-17.
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The paper describes a strategy for introducing collaborative technologies in a gradual and systematic way. It defines a framework to measure collaboration capabilities and then identifies technical strategic framework for systematically adding services to raise collaboration capabilities. The technical strategy adds services in a systematic manner to gradually raise collaboration levels. A way to implement the strategy is then outlined.
Hazelton, PA & Gardner, AP 1970, 'A multidisciplinary, multicultural short course giving young engineers a global perspective on professional practice', Proceedings of the 18th Conference of the Australasian Association of Engineering Education, Annual Conference of Australasian Association for Engineering Education, Department of Computer Science and Software Engineering, University of Melbourne, Melbourne, Australia, pp. 1-7.
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Since 2001 The International Institute of Women in Engineering (IIWE)at EPF, a Grande Ecole in France, has conducted a short course aimed at both female and male final year undergraduate or recently graduated engineers. The objectives of the course are to introduce students to the broad concepts and global issues they will encounter in their career and to initiate cultural awareness and communication skills required for the ever changing workplace. To demonstrate the success of this initiative, candidates were required to complete the same questionnaire prior to the commencement and at the conclusion of the course. This paper reports on some of the strategies used to engage international students in the course activities, and discusses the results of the 2006 before and after- course surveys.
He, S, Jia, W, Wu, Q & Hintz, TB 1970, 'Advances in Grid and Pervasive Computing', International Conference on Grid and Pervasive Computing - Lecture Notes in Computer Science, International Conference on Grid and Pervasive Computing, Springer Berlin Heidelberg, Paris, France, pp. 751-756.
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This paper presents an edge detection method based on bilateral filtering taking into account both spatial closeness and intensity similarity of pixels in order to preserve important visual cues provided by edges and reduce the sharpness of transitions in intensity values as well. In addition, the edge detection method proposed in this paper is achieved on sampled images represented on a newly developed virtual hexagonal structure. Due to the compact and circular nature of the hexagonal lattice, a better quality edge map is obtained. We also present a parallel implementation for edge detection on the virtual hexagonal structure that significantly increases the computation speed.
He, S, Zhang, H, Jia, W, Wu, Q & Hintz, TB 1970, 'Combining Global and Local Features for Detection of License Plates in Video', Proceedings of Image and Vision Computing New Zealand 2007, Image and Vision Computing Conference, Image and Vision Computing New Zealand, Hamilton, New Zealand, pp. 288-293.
He, X, Hintz, T, Li, J, Zhang, H, Wu, Q & Jia, W 1970, 'Local binary pattern on hexagonal structure for face matching', Proceedings of the 2007 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV 2007, International Conference on Image Processing, Computer Vision and Pattern Recognition, CSREA Press, Las Vegas, USA, pp. 455-460.
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Principal Components Analysis (PCA), Independent Component Analysis (ICA) and Linear Discriminant Analysis (LDA), have been widely used for 2D face recognition. Local Binary Pattern (LBP), however, provides a simpler and more effective way to represent faces. With LBP, face image is divided into small regions from which LBP histograms are extracted and concatenated into a single and global feature histogram representing the face image. The recognition is performed using Chi square and other commonly used dissimilarity measures. In this paper, we construct LBP codes together with three dissimilarity measures on hexagonal structure. We show that LBPs defined on hexagonal structure will lead to a faster and more accurate scheme for face recognition.
He, X, Jia, W, Li, J, Wu, Q & Hintz, T 1970, 'An Approach to Edge Detection on a Virtual Hexagonal Structure', 9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007), 9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007), IEEE, Glenelg, Australia, pp. 340-345.
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Hexagonal structure is another image structure alternative to traditional square image structure for image processing and computer vision. The geometrical arrangement of pixels on a hexagonal structure can be described as a collection of hexagonal pixels. Because all the existing hardware for capturing image and for displaying image are produced based on square structure, it becomes important to find a proper software approach to mimic hexagonal structure so that images represented on the traditional square structure can be smoothly converted from or to the images on hexagonal structure. For accurate image processing, it is critical to best maintain the image resolution during the image conversion. In this paper, a bilinear interpolation algorithm that is used to convert an image from square structure to hexagonal structure is presented. Based on this, an edge detection method is proposed. Our experimental results show that the bilinear interpolation improves the edge detection accuracy.
He, X, Li, J, Chen, Y, Wu, Q & Jia, W 1970, 'Local Binary Patterns for Human Detection on Hexagonal Structure', Ninth IEEE International Symposium on Multimedia (ISM 2007), Ninth IEEE International Symposium on Multimedia (ISM 2007), IEEE, Taichung, Taiwan, pp. 65-71.
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Local Binary Pattern (LBP) was designed and has been widely used for efficient texture classification. LBP provides a simple and effective way to represent texture patterns. Uniform LBPs play an important role for LBP-based pattern/object recognition as they include majority of LBPs. On the other hand, Human detection based on Mahalanobis Distance Map (MDM) recognizes appearance of human based on geometrical structure. Each MDM shows a clear texture pattern that can be classified using LBPs. In this paper, we compute LBPs of MDMs on a hexagonal structure. The circular pixel arrangement in hexagonal structure results in higher accuracy for LBP representation than on square structure. Chi-square as a measure is used for human detection based on uniform LBPs obtained. We show that our method using LBPs built on MDMs has a higher human detection rate and a lower false positive rate compared to the method merely based on MDMs. We will also show using experimental results that LBPs on hexagonal structure lead to more robust human classification.
He, X, Li, J, Chen, Y, Wu, Q & Jia, W 1970, 'Local binary patterns for human detection on hexagonal structure', Proceedings - 9th IEEE International Symposium on Multimedia, ISM 2007, pp. 65-71.
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Local Binary Pattern (LBP) was designed and has been widely used for efficient texture classification. LBP provides a simple and effective way to represent texture patterns. Uniform LBPs play an important role for LBP-based pattern/object recognition as they include majority of LBPs. On the other hand, Human detection based on Mahalanobis Distance Map (MDM) recognizes appearance of human based on geometrical structure. Each MDM shows a clear texture pattern that can be classified using LBPs. In this paper, we compute LBPs of MDMs on a hexagonal structure. The circular pixel arrangement in hexagonal structure results in higher accuracy for LBP representation than on square structure. Chi-square as a measure is used for human detection based on uniform LBPs obtained. We show that our method using LBPs built on MDMs has a higher human detection rate and a lower false positive rate compared to the method merely based on MDMs. We will also show using experimental results that LBPs on hexagonal structure lead to more robust human classification. © 2007 IEEE.
He, X, Li, J, Jia, W, Wu, Q & Hintz, T 1970, 'Local Binary Patterns on Hexagonal Image Structure', 7th IEEE International Conference on Computer and Information Technology (CIT 2007), 7th IEEE International Conference on Computer and Information Technology (CIT 2007), IEEE, Aizu-Wakamatsu City, Fukushima, Japan, pp. 639-644.
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Local binary pattern (LBP) was designed and widely used for efficient texture classification. It has been used for face recognition and has potential applications in many other research areas such as human detection. LBP provides a simple and effective way to represent patterns. Uniform LBPs play an important role for LBP-based pattern /object recognition as they include majority of LBPs. In this paper, we present LBP codes on hexagonal image structure. We show that LBPs defined on hexagonal structure have higher percentages of uniform LBPs that will lead to a more efficient and accurate recognition scheme for image classification.
He, X, Wu, Q, Zhang, H & Hintz, T 1970, 'A trend for face recognition', Fourth International Conference on Information Technology and Applications, ICITA 2007, International Conference on Information Technology and Applications, Macquarie Scientific Publishing, Harbin, China, pp. 254-257.
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Face recognition has many applications in law enforcement, crowd surveillance, security access control and human computer interaction. However, the applications have been, greatly constrained by the limitations of the currently available recognition tools because these tools are either too slow, sensitive to pose, illumination and facial expression, or too expensive, and hence are impractical. Face recognition is difficult and still has a long way to go before it really becomes practical. The aim of this paper is to present how a system for real-time, robust and inexpensive face recognition may be approached. The system contains the following components: Low cost CCTV video cameras or simple digital, cameras to quickly locate faces on 2D face images captured. A constructor of 3D face images using the captured 2D images. Algorithms that accurately match the constructed 3D face images to the 2D face images preciously existing in a gallery in real-time for pose and illumination invariant face recognition.
Hidayat, R, Dejhan, K, Moungnoul, P & Miyanaga, Y 1970, 'A GHz analog multiplier for UWB communications', 2007 Asia-Pacific Conference on Communications, 2007 Asia Pacific Conference on Communications, IEEE.
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Hoang, D 1970, 'Wireless Technologies and Architectures for Health Monitoring Systems', First International Conference on the Digital Society (ICDS'07), First International Conference on the Digital Society (ICDS'07), IEEE, Guadeloupe, pp. 1-6.
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Various wireless technologies have been used in health monitoring systems; however, it is not always clear why one technology is chosen over another and how it fits into the overall architecture of an application. This paper explores many limiting characteristics of relevant wireless technologies and attempts to provide a basis for making an appropriate selection. The paper also suggests an architecture that supports collaboration among multiple caregivers over a particular health monitoring application.
Hoang, DB, Phan, HT & IEEE 1970, 'A scalable end-to-end QoS architecture', 2007 INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES, VOLS 1-3, International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia, pp. 677-682.
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Hoang, HG, Tuan, HD & Nguyen, TQ 1970, 'Design of Two-Channel Filter Bank Composed of Linear Phase IIR Filters', 2007 15th International Conference on Digital Signal Processing, 2007 15th International Conference on Digital Signal Processing, IEEE, Cardiff, Wales, pp. 308-311.
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This paper proposes a novel method to design two-channel filter banks composed of exactly linear phase IIR filters. Broadly speaking, the design problem is formulated as a semidefinite program (SDP) of minimal order such that the computational complexity
Hoang, HG, Tuan, HD & Nguyen, TQ 1970, 'Frequency Selective KYP Lemma and its Applications to IIR Filter Bank Design', 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE, Honolulu, HI, pp. 1457-1460.
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For a transfer function/filter F(e(Jw)) of order n, Kalman-Yakubovich-Popov (KYP) lemma characterizes the intractable semi-infinite programming (SIP) condition F(e(-Jw)) 1 Theta [F(e(-Jw)) 1]>= 0 for all omega in frequency domain by a tractable semi-defi
Hossain, MJ, Hossain, MS, Hoque, MA & Anower, MS 1970, 'A novel Fuzzy logic based flux weakening speed control for IPMSM drive with variable direct and quadrature axis inductances', 2007 10th International Conference on Computer and Information Technology, 2007 10th International Conference on Computer and Information Technology (ICCIT 2007), IEEE, United Int Univ, Dhanmondi, BANGLADESH, pp. 27-+.
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Hoyer, P, Lee, T & Spalek, R 1970, 'Negative weights make adversaries stronger', Proceedings of the thirty-ninth annual ACM symposium on Theory of computing, STOC07: Symposium on Theory of Computing, ACM.
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Huang, Y, Hu, Q, Zhao, J, Zhu, J & Guo, Y 1970, 'Comparative Study of High-Speed PM Motors with Laminated Steel and Soft Magnetic Composite Cores', 2007 IEEE Industry Applications Annual Meeting, 2007 IEEE Industry Applications Annual Meeting, IEEE, New Orleans, USA, pp. 67-72.
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Soft magnetic composite (SMC) material is formed by surface-insulated iron powder particles, and has very low eddy current. To explore the application of SMC materials, two types of high-speed (20krpm) permanent magnet (PM) motor have been designed and constructed. One employs radial flux type with laminated steel core, and the other employs transverse flux type with SMC core. Considering the importance of core loss in high speed motors, laminated steel and SMC material are tested by 2-D magnetic tester, and rotational core loss model is employed in the core loss calculation. Details of machine geometry and design procedure are described and some features of the machines are compared.
Huang, Y, Zhu, J, Guo, Y & Hu, Q 1970, 'Core Loss and Thermal Behavior of High-Speed SMC Motor Based on 3-D FEA', 2007 IEEE International Electric Machines & Drives Conference, 2007 IEEE International Electric Machines & Drives Conference, IEEE, Antalya, Turkey, pp. 1569-1573.
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In a high-speed 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. The rotational core loss model is employed in this paper. Practical methods considering the alternating magnetic filed only are also presented, which are useful to designers who do not have rotational core loss data. The three-dimensional (3-D) finite element analysis (FEA) is used to calculate the accurate temperature distribution. Core losses are coupled directly into thermal calculation by keeping the same hexahedral mesh structure between magnetic field analysis and thermal analysis. These methods are applied to a 2 kW, 20 krpm high-speed claw pole motor with soft magnetic composite (SMC) core, and the results are compared and discussed finally.
Huang, Y, Zhu, J, Guo, Y & Hu, Q 1970, 'Development of a High-Speed Claw Pole Motor with Soft Magnetic Composite Core', 2007 IEEE International Electric Machines & Drives Conference, 2007 IEEE International Electric Machines & Drives Conference, IEEE, Antalya, Turkey, pp. 1564-1568.
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Soft Magnetic Composite (SMC) material is formed by surface-insulated iron powder particles, generating unique properties like magnetic and thermal isotropy, and very low eddy current. This paper presents the design and analysis of a high-speed claw pole motor with an SMC core for reducing core losses and cost. The analyses are conducted based on a comprehensive understanding of the property of SMC materials. Three dimensional (3-D) finite element analysis (FEA) is performed for accurate parameter calculation and dimension optimization. Considering the importance of core loss in high speed motors, rotational core loss model is employed. The design and analyze methods are validated by experiment on the prototype.
Hung, TQ, Tuan, HD & Nguyen, TQ 1970, 'Design of Diamond and Circular Filters by Semi-definite Programming', 2007 IEEE International Symposium on Circuits and Systems, 2007 IEEE International Symposium on Circuits and Systems, IEEE, New Orleans, USA, pp. 2966-2969.
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A new design for linear phase diamond-shaped (DS) and circular-shaped (CS) 2-D filters is developed. First, the frequency masks are efficiently constrained by 2-D second-order trigonometric polynomials. Then semi-definite program ming (SDP) of reasonably
Hung, TQ, Tuan, HD & Nguyen, TQ 1970, 'Design of Half-Band Diamond and Fan Filters by SDP', 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, IEEE, Honolulu, HI, pp. 901-904.
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A new design method for linear phase half-band diamond (DS) and fan-shaped (FS) 2-D filters is proposed. A general formulation for frequency mask constraints in different shapes using 2-D trigonometric curves is developed. This facilitates semi-definite
Husain, SI, Yuan, J & Zhang, J 1970, 'Effective Channel Shortening by Modified MSSNR Algorithm for Simplified UWB Receiver', 2007 IEEE International Conference on Communications, 2007 IEEE International Conference on Communications, IEEE, IEEE, pp. 2506-2510.
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Husain, SI, Yuan, J & Zhang, J 1970, 'Impulse response shortening through limited Time reversed channel in MB OFDM UWB systems', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, IEEE, pp. 1269-1273.
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Husain, SI, Yuan, J & Zhang, J 1970, 'Rake Performance after Channel Shortening by Decay Factor Optimization in UWB Channels', 2007 IEEE 66th Vehicular Technology Conference, 2007 IEEE 66th Vehicular Technology Conference, IEEE, IEEE, pp. 1204-1207.
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Hussain, FK, Chang, E & Hussain, OK 1970, 'State of the art review of the existing bayesian-network based approaches to trust and reputation computation', Second International Conference on Internet Monitoring and Protection (ICIMP 2007), Second International Conference on Internet Monitoring and Protection (ICIMP 2007), IEEE, pp. 26-30.
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In this paper we present a state of the art review of the bayesian-network based approaches for trust and reputation computation. We divide the bayesian network based approaches for trust and reputation computation into four different classes. Each of the four different classes is discussed in this paper. © 2007 IEEE.
Hussain, FK, Chang, E & Hussain, OK 1970, 'State of the art review of the existing PageRankTM based algorithms for trust and reputation computation', Second International Conference on Internet Monitoring and Protection (ICIMP 2007), Second International Conference on Internet Monitoring and Protection (ICIMP 2007), IEEE.
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Hussain, FK, Chang, E & Hussain, OK 1970, 'State of the art review of the existing PageRankTM based algorithms for trust computation', 2007 Second International Conference on Systems and Networks Communications (ICSNC 2007), 2007 Second International Conference on Systems and Networks Communications (ICSNC 2007), IEEE, pp. 75-80.
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In this paper we present a state of the art review of PageRank™ based approaches for trust and reputation computation. We divide the approaches that make use of PageRank™ method for trust and reputation computation, into six different classes. Each of the six classes is discussed in this paper. © 2007 IEEE.
Hussain, FK, Chang, E & Hussain, OK 1970, 'State of the art review of the existing soft computing based approaches to trust and reputation computation', Second International Conference on Internet Monitoring and Protection (ICIMP 2007), Second International Conference on Internet Monitoring and Protection (ICIMP 2007), IEEE.
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Hussain, FK, Hussain, OK & Chang, E 1970, 'An overview of the interpretations of trust and reputation', 2007 IEEE Conference on Emerging Technologies & Factory Automation (EFTA 2007), 2007 IEEE Conference on Emerging Technologies & Factory Automation (EFTA 2007), IEEE, pp. 826-830.
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In this paper we present an overview of the definitions of the terms of trust and reputation from the literature. Trust and reputation have been defined in different ways by the various researchers. As a result of these various definitions of trust and reputation there is a lot of confusion regarding what these terms actually mean. Additionally in the literature there is no work towards collecting all the definitions of trust and reputation. In this paper we discuss and present an overview of the terms of trust and reputation from the literature. © 2007 IEEE.
Hussain, FK, Hussain, OK & Chang, E 1970, 'Illustrative Example of Determining Quality of Product (QoP) Using Trustworthiness Measurement Methodology', International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM'07), International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM'07), IEEE, pp. 269-274.
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In this paper we make use of a case study, involving the use of a product by a given user, to determine the quality of product (QoP). The trustworthiness measurement methodology is made use of to carry out the QoP assessment. The steps involved are discussed and illustrated by the trustworthiness measurement methodology software that we have engineered. © 2007 IEEE.
Hussain, FK, Hussain, OK, Chang, E & IEEE 1970, 'An Overview of the interpretations of trust and reputation', ETFA 2007: 12TH IEEE INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, VOLS 1-3, IEEE International Conference on Emerging Technologies and Factory Automation, IEEE, Patras, GREECE, pp. 826-830.
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In this paper we present an overview of the definitions of the terms of trust and reputation from the literature. Trust and reputation have been defined in different ways by the various researchers. As a result of these various definitions of trust and r
Hussain, FK, Hussain, OK, Chang, E & IEEE 1970, 'Illustrative example of determining Quality of Service (QoS) using trustworthiness measurement methodology', Proceedings of the 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, IEEE International Conference on Service Operations and Logistics and Informatics, IEEE, Philadelphia, PA, pp. 530-535.
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In this paper we make use of a case study comprising of an interaction between a service provider and a service requestor to determine the quality of service (QoS) provided by the service provider. The trustworthiness measurement methodology is made use
Hussain, FK, Hussain, OK, Chang, E & IEEE 1970, 'Trustworthiness measurement methodology (TMM) for assessment purposes', Proceedings of the 2007 IEEE International Conference on Service Operations and Logistics, and Informatics, IEEE International Conference on Service Operations and Logistics and Informatics, IEEE, Philadelphia, PA, pp. 369-374.
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Quality assessment process is a very complex process. At the same time quality assessment is very vital and crucial for many business processes. In this paper we propose and explain trustworthiness measurement methodology, which is a generic method which
Hussain, FK, Hussain, OK, Chang, E & IEEE 1970, 'Trustworthiness measurement methodology (TMM) for assessment purposes', ICCC 2007: 5TH IEEE INTERNATIONAL CONFERENCE ON COMPUTATIONAL CYBERNETICS, PROCEEDINGS, IEEE International Conference on Computational Cybernetics, IEEE, Gammarth, TUNISIA, pp. 107-112.
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Quality assessment process is a very complex process. At the same time quality assessment is very vital and crucial for many business processes. In this paper we propose and explain trustworthiness measurement methodology, which is a generic method which
Hussain, O, Chang, E, Hussain, F & Dillon, T 1970, 'Quantifying the level of failure in a digital business ecosystem interactions', 2007 IEEE Conference on Emerging Technologies & Factory Automation (EFTA 2007), 2007 IEEE Conference on Emerging Technologies & Factory Automation (EFTA 2007), IEEE, Patras, GREECE, pp. 818-825.
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To ascertain the possible level of risk in a digital business ecosystem interaction, the initiating agent has to determine beforehand the probability of failure, the possible consequences of failure, and the loss of investment probability to its resource
Hussain, O, Chang, E, Hussain, F & Dillon, T 1970, 'Towards Quantifying the Possible Risk in e-commerce Interactions for RDSS', IEEE International Conference on e-Business Engineering (ICEBE'07), IEEE International Conference on e-Business Engineering (ICEBE'07), IEEE, Hong Kong, PEOPLES R CHINA, pp. 89-96.
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By analyzing the possible level of Risk beforehand the initiating agent can make an informed decision of its future course of interaction with an agent. The possible risk in the context of an e-commerce interaction is a multidimensional construct which i
Hussain, OK, Chang, E, Hussain, FK & Dillon, TS 1970, 'Ascertaining Risk in Financial Terms in Digital Business Ecosystem Environments', 2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference, 2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference, IEEE, pp. 296-301.
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In a digital business ecosystem environment the trusting agent by analysing beforehand the possible risk in interacting with a probable trusted agent, can make a better decision of its future course of interaction with it. A possible outcome of Risk is the loss to trusting agent's resources involved in the interaction. In a financial interaction, the possible loss that may be incurred is usually the monetary loss in the resources of the trusting agent that are involved in the interaction. In this paper, we propose a methodology by which the trusting agent can determine beforehand the possible Risk in financial terms or the possible loss to its resources as a result of interacting with a probable trusted agent. © 2007 IEEE.
Hussain, OK, Chang, E, Hussain, FK & Dillon, TS 1970, 'Determining the loss of investment probability for risk based decision support system', 6th IEEE/ACIS International Conference on Computer and Information Science, Proceedings, IEEE/ACIS International Conference on Computer and Information Science in Conjunction with 1st IEEE/ACIS International Workshop on, IEEE Computer Soc, Melbourne, AUSTRALIA, pp. 1129-1134.
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In an e-commerce interaction it is rational for the initiating agent to be apprehensive about the outcome of the interaction and fear for the safety of its resources involved in it. The initiating agent can alleviate this to a certain extent by determini
Hussain, OK, Chang, E, Hussain, FK & Dillon, TS 1970, 'Quantifying Failure for Risk Based Decision Making in Digital Business Ecosystem Interactions', Second International Conference on Internet and Web Applications and Services (ICIW'07), Second International Conference on Internet and Web Applications and Services (ICIW'07), IEEE.
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Due to technological advancement of the internet, conducting e-commerce transactions have become a part of our daily lives. In a financial interaction to be carried over the digital business ecosystem domain, it is rational for an agent instigating the interaction to analyse beforehand the possible risk in interacting with any other agent. Doing so would give the instigating agent an idea of direction in which its interaction might head and also help it to make an informed decision of its future course of action with that particular agent. For risk analysis, the instigating agent has to determine beforehand the probability of failure and the possible consequences of failure in interacting with an agent. In this paper, we propose such a methodology by which the instigating agent quantifies the probability of failure beforehand in interacting with an agent according to the demand of its future interaction with it. © 2007 IEEE.
Hussain, OK, Chang, E, Hussain, FK & Dillon, TS 1970, 'Quantifying the Possible Financial Consequences of Failure for making a Risk Based Decision', Second International Conference on Internet Monitoring and Protection (ICIMP 2007), Second International Conference on Internet Monitoring and Protection (ICIMP 2007), IEEE, p. 40.
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In a financial e-commerce interaction it is rational for the initiating agent to analyze beforehand the possible risk in interacting with any other agent. Doing so would give the initiating agent an idea of direction in which its interaction might head and also help it to make an informed decision of its future course of action with that particular agent. For risk analysis in the context of e-commerce interactions, the initiating agent has to determine beforehand the probability of failure and the possible consequences of failure in interacting with an agent. In this paper, we propose a methodology by which the initiating agent can determine beforehand the possible consequences of failure in its resources, according to the demand of its future interaction with an agent. © 2007 IEEE.
Hussain, OK, Chang, E, Hussain, FK, Dillon, TS & IEEE 1970, 'Quantifying the loss in resource benefit for risk based decision in digital business ecosystem', 2007 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, PROCEEDINGS, VOLS 1-8, IEEE International Symposium on Industrial Electronics, IEEE, Vigo, SPAIN, pp. 2917-2922.
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In a financial digital business ecosystem, the trusting agent by analyzing beforehand the possible risk in interacting with a probable trusted agent can make a better decision of its future course of interaction with it. Another factor that would help th
Huynh, BP 1970, 'Convective Cooling of an Extrudate', Volume 1: Symposia, Parts A and B, ASME/JSME 2007 5th Joint Fluids Engineering Conference, ASMEDC, San Diego, California, USA, pp. 1713-1722.
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Convective heat transfer about an isothermal, cylindrical extrudate of constant diameter, issuing continuously from an extrusion die, is investigated numerically, using a commercial CFD software package. The hot extrudate is assumed to move vertically downward, thus giving rise to a combined regime of forced and free convection in the surrounding fluid. Prandtl number of 0.707, corresponding to air near standard conditions, is used. It is seen that when extrudate speed is very low, heat transfer decreases as speed is increased. However this trend is reversed at higher extrudate speed. Flow pattern in the ambient fluid, and effects of Rayleigh number on the extrudate’s heat transfer, will also be presented.
Huynh, BP 1970, 'Cooling by free convection at high Rayleigh number of cylinders positioned above a plane', Proceedings of the 16th Australasian Fluid Mechanics Conference, 16AFMC, Australasian Fluid Mechanics Conference, School of Engineering, The University of Queensland, Gold Coast, Australia, pp. 654-658.
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Free convection cooling of isothermal circular cylinders positioned above a horizontal plane is investigated numerically, using a commercial Computational Fluid Dynamics (CFD) software package. Computation is performed for high Rayleigh number, in the range 109 - 1011. Chien's turbulence model of low-Reynolds-number K-e is used, with Prandtl number of 0.707, corresponding to air near standard conditions. Influence of the underlying plane on heat transfer from the cylinders' surface is examined. As the gap between the plane and cylinders is narrowed, a pattern can be seen whereby heat transfer reaches a minimum that moves closer to the cylinder surface with higher Rayleigh number. The plane's thermal condition, adiabatic versus isothermal, produces no significant difference in the heat transfer for the present range of gap ratio, in contrast to laminar case.
Iacopi, F, Vereecken, PM, Schaekers, M, Caymax, M, Moelans, N, Blanpain, B, Detavernier, C, D'Haen, J & Griffiths, H 1970, 'Alternative Catalysts For Si-Technology Compatible Growth Of Si Nanowires', MRS Proceedings, Springer Science and Business Media LLC, pp. 8-13.
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AbstractThe use of Au nanoparticles as catalysts for growth of Si nanowires poses fundamental reliability concerns for applications in Si semiconductor technology. In this work we show that the choice of catalysts can be broadened when the need for catalytic precursor dissociation is eliminated. However, the requirements for selective deposition in a gas phase transport -limited regime become stringent. When competing deposition of amorphous Si can bury the particles faster than the incubation time for VLS growth, no nanowire growth will be initiated. We show that the use of a catalyst such as In, already in a liquid form at the growth temperature, is effective. Therefore, the choice of VLS catalysts among the low melting point metals from the III, IV and V groups is suggested.
Indraratna, B, Rujikiatkamjorn, C & Chu, J 1970, 'Soft Clay Stabilization with Geosynthetic Vertical Drains beneath Road and Railway Embankments: A Critical Review of Analytical Solutions and Numerical Analysis', Advances in Measurement and Modeling of Soil Behavior, Geo-Denver 2007, American Society of Civil Engineers, p. 7.
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In the wide array of existing ground improvement schemes, the use of vertical drains with vacuum preloading is considered as the most effective and economical method for improving soft clays (normally consolidated to lightly over-consolidated) prior to construction of infrastructure. Vertical drains installed to significant depths promote radial flow inducing consolidation rapidly enhancing the shear strength of the compressed ground. In this paper, the analytical solutions based on lateral soil permeability (parabolic variation) are discussed considering the variation of vacuum pressure with depth along the prefabricated vertical drains (PVD). Using the Cavity Expansion Theory (CET), the smear zone caused by the installation of PVD by steal mandrel was predicted and compared with laboratory measurements obtained from large-scale radial consolidation tests. The effects of drain unsaturation and vacuum pressure along the drain length are also discussed. The numerical analyses incorporating equivalent plane strain solutions were performed to predict the soil responses based on two selected case histories in Thailand. The research findings provided insight as to which of the above aspects needed to be simulated accurately in numerical modelling. The application of cyclic loading on PVD stabilized ground was also examined using a finite element approach under railway embankment. It is demonstrated that short drains less than 8 m installed beneath tracks are still useful for effective dissipation of cyclic pore pressures and curtailing unacceptable lateral movement immediately below the track level, at the same time avoiding excessive settlement of the track in the short-term. Copyright ASCE 2007.
Indraratna, B, Rujikiatkamjorn, C, Wijeyakulasuriya, V, Shahin, MA & Christie, D 1970, 'Soft soil stabilisation with special reference to road and railway embankments', Proceedings of the 4th International Conference on Soft Soil Engineering - Soft Soil Engineering, 4th International Conference on Soft Soil Engineering, TAYLOR & FRANCIS LTD, Vancouver, CANADA, pp. 35-55.
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Much of Australian railway tracks traverse coastal areas containing soft soils and marine deposits. Pre-construction stabilization of soft formation soils by applying a surcharge load alone often takes too long. The installation of prefabricated vertical drains (PVDs) can reduce the preloading period significantly by decreasing the drainage path length, sometimes by a factor of 10 or more. The analytical solution based on actual radial soil permeability is proposed considering the variation of vacuum pressure, and the Cavity Expansion Theory is employed to predict the smear zone caused by the installation of mandrel driven vertical drains. The predicted smear zone and the effect of drain unsaturation are compared with data obtained from a large-scale radial consolidation tests and the results are explained. When a higher load is required to meet the desired rate of settlement and the cost of surcharge is also significant, the application of vacuum pressure with reduced surcharge loading can be used. In this method, an external negative load is applied to the soil surface in the form of vacuum pressure through a sealed membrane system. The applied vacuum pressure generates negative pore water pressure, resulting in an increase in effective stress and accelerated consolidation, also avoiding the need for a high surcharge embankment. The analytical and numerical analyses incorporating the authors' equivalent plane strain solution for both Darcian and non-Dracian flow are conducted to predict the excess pore pressures, lateral and vertical displacements and several selected case histories are analysed and presented. Cyclic loading of PVDs is also examined in the laboratory in a manner appropriate for railway environments. It is shown that short PVDs can dissipate excess pore pressure as fast as they are built up under repeated loading conditions. The research findings verify that the impact of smear and vacuum pressure can significantly affect soil consolidation, and...
Ip, K, Thomas, P, Stuart, BH & Ray, AS 1970, 'Thermal characterisation of the clay binder of heritage Sydney sandstone', Medicta 2007: The 8th Mediterranean Conference on Calorimetry and Thermal Analysis Book of Abstracts, 8th Mediterranean Conference on Calorimetry and Thermal Analysis, Palermo.
Iu, HHC, Ling, SH, Lu, DDC & IEEE 1970, 'Comparative study of bifurcation boundry in parallel-connected buck converters under democratic current-sharing control', 2007 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING, VOLS 1-2, Australasian Universities Power Engineering Conference (AUPEC), IEEE, Curtin Univ Technol, Perth, AUSTRALIA, pp. 359-363.
Jarman, R & Willey, K 1970, 'Benchmarking Capstone Projects in UTS Faculty of Engineering', ATN EVALUATION AND ASSESSMENT Conference, ATN Assessment Conference, Queensland University of Technology, Brisbane, Australia, pp. 45-57.
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UTS:Engineering Capstone Projects are undertaken in the final semester(s) of study and provide an opportunity for students to demonstrate a capacity to perform at the levels expected of a professional engineer. In many cases, students undertake projects in their workplace environment affording a rich context to integrate real-world problems and solutions with academic rigour. The existing subject requirements have remained relatively unchanged for over 10 years; there is negligible evidence of the impact of its introduction and only anecdotal evidence of its effectiveness as a âcapstoneâ subject. Further, project supervisors have expressed their concern regarding a drop in quality of project work â and its assessment. Some students opt for âsofterâ project topics, moderation of assessment criteria across Faculty staff is problematic, and there is a lack of adequate evaluation (feedback) data from students to inform improvement strategy. As changes to subject requirements are being introduced in Spring 2007, a benchmarking exercise is timely. This paper will present the pertinent outcomes from a detailed evaluation undertaken by 85 capstone project students in Autumn semester 2007. Students were asked to self-evaluate on a 0-5 scale the âapplicabilityâ and their âcapacity to demonstrate in their project work each of 61 competency indicators chosen from Engineers Australia Stage 1 Competency Standards. The outcomes will serve as a valuable guide for areas of improvement as well as a benchmark against which future change can be measured.
Javaherian, C & Shokri, B 1970, 'Light conduction in single-wall and double-wall carbon nanotubes and the excitation of surface plasmons on double-wall carbon nanotubes with electron beam', Second Student Nanotechnology Conference, Science and Nanotechnology Research Centre, Kashan University, Iran.
Jay Guo, Y 1970, 'Cover', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE.
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Jia, W & Tien, D 1970, 'Discovering local cooccurring patterns from aerial images', Fourth International Conference on Information Technology and Applications, ICITA 2007, International Conference on Information Technology and Applications, Macquarie Scientific Publishing, Sydney, Australia, Harbin, China, pp. 300-305.
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Developing a spatial searching engine to enhance the search capabilities of large spatial repositories for GIS update has attracted more and more attention. Existing methods are usually designed to extract limited types of objects and use only one aspect of features of Images. In this paper, we propose to use the local cooccurring patterns to disclose the cooccurring relationships among each dominant local features and use this local cooccurring patterns to recognize an object from aerial images. For this purpose, we investigate three types of local features: colour-based features, texture-based features, and edgebased shape features. In order to facilitate the feature extraction procedure, we first use discontinuity-preserving smoothing methods to filter the input image. Two popular smoothing techniques are tested and compared. Experimental results are presented in this paper.
Jia, W, He, S, Zhang, H & Wu, Q 1970, 'Combining Edge and Colour Information for Number Plate Detection', Proceedings of Image and Vision Computing New Zealand 2007, Image and Vision Computing Conference, Image and Vision Computing New Zealand, Hamilton, New Zealand, pp. 227-232.
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This paper presents a method for vehicle number plate detection which combines edge and colour features of number plates. We concentrate on two key issues of this application: speed and robustness. Our focus is put on detecting parts of a number plate, instead of the number plate itself as a whole. To achieve the target of real-time detection, two simple features based on a rede¯ned vertical edge map are constructed. To address the illumination-sensitive problem of using colour information, a Gaussian weighted histogram intersection (GWHI) method is proposed. The above new ideas compose the major part of the algorithm. Our experimental results demonstrate a promising preliminary result on detecting yellow number plates in terms of detection speed and robustness, which shows the feasibility of the proposed method.
Jia, W, Tien, D, He, S, Hope, BA & Wu, Q 1970, 'Advances in Visual Information Systems', International Conference on Visual Information Systems - Lecture Notes in Computer Science, International Conference on Visual Information Systems, Springer Berlin Heidelberg, Shanghai, China, pp. 478-489.
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Developing a spatial searching tool to enhance the search capabilities of large spatial repositories for Geographical Information System (GIS) update has attracted more and more attention. Typically, objects to be detected are represented by many local features or local parts. Testing images are processed by extracting local features which are then matched with the objectâs model image. Most existing work that uses local features assumes that each of the local features is independent to each other. However, in many cases, this is not true. In this paper, a method of applying the local cooccurring patterns to disclose the cooccurring relationships between local features for object detection is presented. Features including colour features and edge-based shape features of the interested object are collected. To reveal the cooccurring patterns among multiple local features, a colour cooccurrence histogram is constructed and used to search objects of interest from target images. The method is demonstrated in detecting swimming pools from aerial images. Our experimental results show the feasibility of using this method for effectively reducing the labour work in finding man-made objects of interest from aerial images.
Jiang, ZY, Xie, HB, Yang, LM, Zhu, HT, Wei, DB & Tieu, AK 1970, 'Mechanics of Asymmetric Rolling of Thin Strip with Effect of Work Roll Edge Contact', Materials Science Forum, 6th Pacific Rim International Conference on Advanced Materials and Processing, Trans Tech Publications, Ltd., Cheju Isl, SOUTH KOREA, pp. 115-118.
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Asymmetric rolling of thin strip has become important due to a significant decrease of
rolling force, which contributes to obtain the extremely thin strip, to reduce the rolling passes, and
to save the energy by a decrease of anneal treatment. In asymmetric rolling of thin strip, edges of
work rolls may contact and deform when no or small work roll bending force is applied. Work roll
edge contact forms a new deformation feature. In this paper, the effects of initial thickness of strip
and friction coefficient on the rolling pressure, roll edge contact length and strip crown during
asymmetric rolling of thin strip with work roll edge contact effect has been discussed, and the
calculated rolling force with work roll edge contact is compared with the measured value.
Jiang, ZY, Zhu, HT, Wei, DB & Tieu, AK 1970, 'Asymmetric Cold Rolling of Thin Strip with Roll Edge Kiss', 2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007 2nd IEEE Conference on Industrial Electronics and Applications, IEEE, Harbin, PEOPLES R CHINA, pp. 2781-2786.
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Asymmetric rolling can reduce the thickness of rolled strip and rolling load significantly. In this paper, the asymmetric cold rolling of thin strip with roll edge kiss was analysed theoretically and the rolling pressure, intermediate force between the work roll and backup roll, the work roll edge kiss force, the strip profile after rolling are obtained for this special asymmetric rolling. The rolling pressure, intermediate force, roll edge kiss force and the strip profile are compared for various roll speed ratios, reduction and friction coefficients. Simulation result shows that the roll speed ratio and reduction have a significant influence on the profile of rolled strip, and the calculated rolling forces are consistent with the measured values. The effect of friction in the roll bite on mechanics of the asymmetric cold rolling of thin strip with roll edge kiss is also discussed.
Jiang, ZY, Zhu, HT, Wei, DB & Tieu, AK 1970, 'Mechanics of a Special Asymmetric Rolling of Thin Strip', Key Engineering Materials, 8th Asia-Pacific Symposium on Engineering Plasticity and Its Applications (AEPA 2006), Trans Tech Publications, Ltd., Nagoya Univ, Nagoya, JAPAN, pp. 707-712.
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Asymmetric rolling is used to produce thinner strip, which can reduce rolling force significantly. When a thinner strip is rolled on a rolling mill, work roll edge may contact each other, which affects the mechanics of this special asymmetric rolling and the crown of the rolled strip. In this paper, the authors developed a numerical model to simulate this special rolling and obtained the rolling force, intermediate force, roll edge contact force, the crown of the rolled strip and the edge contact length. The effects of the initial thickness of strip and the friction variation at upper and lower work rolls on the rolling force and crown of the rolled strip are also discussed.
Jiangfeng Zhang & Xiaohua Xia 1970, 'Best switching time of hot water cylinder-switched optimal control approach', AFRICON 2007, AFRICON 2007, IEEE, Windhoek, NAMIBIA, pp. 436-441.
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Jian-Zhou Wang, Liang Wu & Hai-Yan Lu 1970, 'Special periods peak load analysis and superior forecasting method based on LS-SVM', 2007 International Conference on Wavelet Analysis and Pattern Recognition, 2007 International Conference on Wavelet Analysis and Pattern Recognition, IEEE, Crowne Plaza Hotel, Beijing, China, pp. 245-253.
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Abstract: People often try to smooth or eliminate load outliers all together in traditional power load forecasting. This, however, could result in the loss of important hidden information. In other words, the power load outliers themselves may be particular important. Hence there is a beforehand estimate to change and characteristic of power load, especially in power load outliers or peak load, is a precondition of power system carry through economy dispatch, reduce production cost and prevent widespread blackout or collapse on electric system. In this paper propose a novel method for special periods power peak load detection, mining and forecasting. It incorporates the characteristic of high level load and maximum peak load analysis with optimum forecasting algorithm based on support vector machine. The validity of the method is proved by real data calculation.
Jiaxin Chen, Jianguo Zhu & Youguang Guo 1970, 'A 2-D nonlinear FEA tool embedded in Matlab/Simulink surrounding for application of electromagnetic field analysis in power converters', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Jiaxin Chen, Jianguo Zhu & Youguang Guo 1970, 'A unified hybrid model with two level networks for peak current mode controlled buck-boost converters operating in DCM and CCM', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Jiaxin Chen, Jianguo Zhu & Youguang Guo 1970, 'Modeling and performance analysis of energy regeneration system in electric vehicle with permanent magnet DC motor driving system', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Jiaxin Chen, Youguang Guo & Jianguo Zhu 1970, 'A general method for designing the transformer of flyback converters based on nonlinear FEA of electromagnetic field coupled with external circuit', 2007 International Conference on Electrical Machines and Systems (ICEMS), 2007 International Conference on Electrical Machines and Systems, IEEE.
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Jie Zhao, Xiaojing Huang & Dutkiewicz, E 1970, 'Dynamic bandwidth MCIDS - a cognitive solution for MCIDS based UWB communications', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia.
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Jihua Zhou, Dutkiewicz, E, Di Pang, Jinlong Hu & Jinglin Shi 1970, 'Optimizing initial ranging region allocation in IEEE 802.16 OFDMA systems', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, pp. 178-183.
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The IEEE 802.16 standard has been developed for metropolitan broadband wireless access systems. As part of the standard, the random access scheme is used for initial ranging. The ratio between the numbers of initial ranging slots and data slots in the uplink subframe decides the contention throughput, access delay and data throughput. However, no specific ratio is standardized in the protocol, so it is still necessary to determine the optimal number of initial ranging slots which is the decisive factor of the ratio. In this paper, we analyze the three parameters above, contention throughput, access delay and data throughput, each of which can be expressed as a function of the number of initial ranging slots. In addition, we define an objective function and derive the exact equation of the optimal number of ranging slots. Based on the equation, we propose an optimal dynamic controller to allocate the initial ranging region In the uplink subframe. We also propose an estimation scheme to obtain the number of contention users using Newton Iteration method. To verify the correctness of the analysis and the efficiency of the controller, we conduct extensive simulations. The simulation and analytical results match very well. The results show that good system performance can be achieved with the optimal dynamic controller. © 2007 IEEE.
Jin, J, Guo, Y, Chen, J, Zheng, L & Zhu, J 1970, 'HTS levitation and transportation with linear motor control', PROCEEDINGS OF THE 26TH CHINESE CONTROL CONFERENCE, VOL 6, 26th Chinese Control Conference, BEIJING UNIV AERONAUTICS & ASTRONAUTICS PRESS, Zhangjiajie, PEOPLES R CHINA, pp. 10-+.
Jin, J, Zheng, L, Wen, J, Guo, Y, Chen, J & Zhu, J 1970, 'HTS Levitated Mobile Technology and Prototype', 2007 IEEE International Conference on Integration Technology, 2007 IEEE International Conference on Integration Technology, IEEE, Shenzhen, China, pp. 47-51.
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The special reaction phenomenon of a high temperature superconductor (HTS) to magnetic fields provides an alternative technical solution for design of a levitated mobilization system, in which a linear motion drive with a HTS incorporated is a critical issue. This work presents the design and performance analysis of a HTS linear synchronous driving system with a prototype built for verification. Magnetic field finite element analyses are conducted to compute the key parameters, and the steady state characteristic of the system is predicted by using the classic phasor voltage equation. A simulation model is also built to analyze the system dynamic performance, and results show that the levitated HTS mobilization system developed can be driven and controlled at the desired speed.
Jin, JX, Zhang, JL, Guo, YG, Zhan, YD & Zhu, JG 1970, 'Next generation of DC power transmission technology using High T<inf>c</inf> superconducting cables', 2007 Australasian Universities Power Engineering Conference, 2007 Australasian Universities Power Engineering Conference (AUPEC), IEEE, Perth, Australia, pp. 205-210.
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Jin, JX, Zhang, JL, Guo, YG, Zhan, YD & Zhu, JG 1970, 'Next generation of DC power transmission technology using high T-c superconducting cables', 2007 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING, VOLS 1-2, Australasian Universities Power Engineering Conference (AUPEC), IEEE, Curtin Univ Technol, Perth, AUSTRALIA, pp. 135-+.
Johnston, A, Marks, B & Candy, L 1970, 'Sound controlled musical instruments based on physical models', International Computer Music Conference, ICMC 2007, International Computer Music Conference, International Computer Music Association, Copenhagen, Denmark, pp. 232-239.
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This paper describes three simple virtual musical instruments that use physical models to map between live sound and computer generated audio and video. The intention is that this approach will provide musicians with an intuitively understandable environment that facilitates musical expression and exploration. Musicians live sound exerts 'forces' on simple mass-spring physical models which move around in response and produce sound. Preliminary findings from a study of musicians' experiences using the software indicate that musicians find the software easy to understand and interact with and are drawn to software with more complex interaction-even though this complexity can reduce the feeling of direct control.
Johnston, AJ & Marks, B 1970, 'Partial reflections', Proceedings of the 6th ACM SIGCHI conference on Creativity & cognition - C&C '07, the 6th ACM SIGCHI conference, ACM Press, Washington, DC, USA, pp. 257-258.
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In this paper we describe two interactive virtual musical instruments that are controlled by sound. These instruments are based on virtual physical models that can be pushed and prodded by making sounds into a microphone. These models provide a mapping between acoustic sounds and computer generated sounds and visuals.
Jupp, J, Langdon, P & Godsill, S 1970, 'Mobile Computing in Maintenance Activities: A ’Situational Induced Impairments and Disabilities’ Perspective', Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Springer Berlin Heidelberg, pp. 696-705.
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This paper examines the context of mobile computing within facilities maintenance activities on the basis of an analysis of cursor movement and point and click disruptions that may occur when a number of perturbations are induced by the computing environment. An analysis based on context-aware computing distinguishes between situational induced impairments and disabilities (SIID) whose properties are related to Health Induced Impairments and Disabilities (HIID) such as motion impairment, tremor or spasm. A number of technology solutions based on Assistive Technology interventions for motion impaired cursor movement stabilization are possible approaches to counter SIID in Mobile computing for maintenance environments. A software based cursor movement smoothing method based on statistical state space filtering is presented as an example of a new development of one such approach. © Springer-Verlag Berlin Heidelberg 2007.
Káčik, D, Peterka, P, Canning, J, Turek, I, Kolimar, M & Berezina, S 1970, 'The modified interferometer for measurement of the chromatic dispersion in PCFs', Photonic Crystal Fibers, International Congress on Optics and Optoelectronics, SPIE, Prague, CZECH REPUBLIC.
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Kalam, MA, Masjuki, HH, Haseeb, ASMA, Redzuan, MA & Syazly, M 1970, 'Friction and wear characteristics of biodiesel contaminated lubricants', Society of Tribologists and Lubrication Engineers - 62nd Annual Meeting of the Society of Tribologists and Lubrication Engineers 2007, pp. 1001-1003.
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Three samples were explicitly prepared as Sample A - normal lubricant SAE4O grade, Sample B - consists of SAE4O grade with 0.5% additive (Amine phosphate), and Sample C - consists of SAE4O grade with 0.5% additive (octylated/butylated diphenylamine). Each of the samples was contaminated with biodiesel from 1 to 5% and evaluated as a biodegradable lubricant to be used for biodiesel fuelled engines. Based on four ball testing, palm oil diesel based lubricant showed promising result as compared to conventional lubricant. For sample C, coefficient of friction (COF) increased from 0.8 to 0.24 with the increase of load from 50 to 90 kg. However, the samples A and B showed lower COF throughout the load range. The additive (0.5% octylated/butylated diphenylamine) had an adverse effect on COF. Increasing percentage of POD did not have much affect on COF as all the samples showed almost constant level of COF in their individual trend. Thus, palm oil diesel could be used as additive in the developing of new biodegradable lubricant. The sample C showed some fluctuation of COF as compared to samples A and B. This is an abstract of a paper presented at the Society of Tribologists and Lubrication Engineers - 62nd Annual Meeting of the Society of Tribologists and Lubrication Engineers 2007 (Philadelphia, PA 5/6-10/2007).
Kandasamy, JK & Vigneswaran, S 1970, 'Constructed Wetlands for Wastewater and Stormwater Management', Current Issues on Wetland Conservation in Asia: In View of the Upcoming COP10, International Symposium on Regional Wetlands Issues In Asia, Daewoong, Bugok, South Korea, pp. 60-70.
Kang, K 1970, 'Adopting Culture in E-Business - A Global Aspect', Expanding the Knowledge Economy: Issues, Applications, Case Studies, eChallenges, IOS Press, The Hague, Netherlands, pp. 170-176.
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This paper presents an investigation of user preferences in global web sites. This study was important to establish an understanding of the barriers in implementing of e-commerce on a global level. The paper begins with an overview of current business-to customer (B2C) e-commerce sites on the web, and then describes cultural issues in the global e-commerce. The paper also discusses innovative design ideas that are currently being used extensively to attract customers and increase e-commerce organisations presence in the global markets.
Kang, K 1970, 'Considering Cultural Issues in E-Business Solutions', The 2nd IEEE Asia-Pacific Service Computing Conference (APSCC 2007), The 2nd IEEE Asia-Pacific Service Computing Conference (APSCC 2007), IEEE.
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Kannapiran, A, Jeyakumaran, JM, Chanan, AP, Kandasamy, JK, Singh, G, Tambosis, P & Al-Jumaily, A 1970, 'Asset Management of Stormwater System using Fuzzy Logic', The Eighth International Conference on Intelligent Technologies (InTech-07), International Conference on Intelligent Technologies, University of Technology, Sydney, Sydney, Australia, pp. 182-188.
Kazienko, P & Musiał, K 1970, 'Assessment of Personal Importance Based on Social Networks', MICAI 2007: ADVANCES IN ARTIFICIAL INTELLIGENCE, 6th Mexican International Conference on Artificial Intelligence (MICAI 2007), Springer Berlin Heidelberg, Aguascalientes, MEXICO, pp. 529-539.
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Kazuto Nishi, Shingo Yoshizawa & Yoshikazu Miyanaga 1970, 'A study of dynamic reconfigurable FFT processor for OFDM based cognitive radio', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE.
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Kha, HH, Tuan, HD & Nguyen, TQ 1970, 'An Efficient SDP Based Design for Prototype Filters of M-Channel Cosine-Modulated Filter Banks', 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, IEEE, Honolulu, HI, pp. 893-896.
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The paper presents an efficient semidefinite programming (SDP) based design for prototype filters of cosine-modulated filter banks (CMFBs). We consider a class of near-perfect reconstruction CMFBs with the linear phase prototype filter, which structurall
Kha, HH, Tuan, HD & Nguyen, TQ 1970, 'Design of Cosine-Modulated Pseudo-QMF Banks Using Semidefinite Programming Relaxation', 2007 IEEE International Symposium on Circuits and Systems, 2007 IEEE International Symposium on Circuits and Systems, IEEE, New Orleans, USA, pp. 585-588.
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The paper proposes a new approach for the design of M-channel pseudo-quadrature mirror filter (QMF) banks. First, the convex hull of 2Mth band linear phase filters admitting linear phase spectral factors is analytically described by semidefinite programm
Kha, HH, Tuan, HD & Nguyen, TQ 1970, 'Optimal design of triplet halfband filter banks via Semidefinite Programming', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia, pp. 243-247.
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This paper proposes a computationally efficient method for designing a class of triplet halfband filter banks. We show that the design of perfect reconstruction two-channel filter banks with arbitrary regularity order can be precisely formulated as a sem
Khawaja, MA, Ruiz, N & Chen, F 1970, 'Potential speech features for cognitive load measurement', Proceedings of the 19th Australasian conference on Computer-Human Interaction: Entertaining User Interfaces, OZCHI '07: Proceedings of the 19th conference of the computer-human interaction special interest group of Australia on Computer-human interaction: design, ACM, pp. 57-60.
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Intelligent user interfaces with an awareness of a user's experienced level of cognitive load have the potential to change the way output strategies are implemented and executed. However, current methods of measuring cognitive load are intrusive and unsuitable in real-time scenarios. Certain speech features have been shown to change under high levels of load. We present a dual-task speech based user study in which we explore three speech features: pause length, pause frequency and latency to response. These features are evaluated for their diagnostic capacity. Pause length and latency to response are shown to be useful indicators of high load versus low load speech.
Khosravi, A, Lu, J, Zheng, X & Barzamini, R 1970, 'Skew-Tree Based Multistage Fuzzy Controller for Nonlinear Systems', NEW DIMENSIONS IN FUZZY LOGIC AND RELATED TECHNOLOGIES, VOL II, PROCEEDINGS, Conference of the European Society for Fuzzy Logic and Technology, University of Ostrava, Ostravo, Czech Republic, pp. 137-142.
Khosroshahi, ME, Enayati, M, shafiei, S & Tavakoli, J 1970, 'Evaluation of drug release from PLGA nanospheres containing bethametasone', Biophotonics 2007: Optics in Life Science, European Conference on Biomedical Optics, OSA.
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In this research poly (d,1-lactide-coglycolide acid) (PLGA) as polymeric nanospheres, polyvinyl alcohol) (PVA) with 87-89% hydrolysis degree as surfactant and distilled water as suspending medium were used. The encapsulated drug was Bethametasone. The nanospheres were prepared by an emulsion-solvent evaporation method. The nanospheres characterized by photon correlation spectroscopy (PCS) and scanning electron microscopy (SEM). The amount of drug release was determined by HPLC. In emulsion-solvent evaporation technique, time of ultrasound exposure, surfactant content in the formulation and evaporation rate of organic solvents were considered as formulation variables. © 2007 SPIE-OSA.
Khosroshahi, ME, Enayati, M, Shafiei, S & Tavakoli, J 1970, 'Evaluation of drug release from PLGA nanospheres containing bethametasone', SPIE Proceedings, European Conference on Biomedical Optics, SPIE, Munich, GERMANY, pp. E6331-E6331.
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Kiani, GI, Karlsson, A, Olsson, L & Esselle, KP 1970, 'Glass Characterization for Designing Frequency Selective Surfaces to Improve Transmission through Energy Saving Glass Windows', 2007 Asia-Pacific Microwave Conference, 2007 Asia-Pacific Microwave Conference (APMC '07), IEEE.
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This paper reports initial work on creating frequency selective surfaces (FSS) on modern day glass windows to improve the transmission of wireless/mobile/cellular communication signals through the glass. The manufacturers of these glass windows apply very thin layers of metallic oxides on one side of glass to provide extra thermal insulation. These coatings block the infrared and ultraviolet waves to provide thermal insulation, but they also attenuate communication signlas such as GSM 900, GSM 1800/1900, UMTS and 3G mobile signals. This creates a major communication problem when buildings are constructed using mostly such type of glass. A bandpass FSS can provide a solution to increase the transmission of useful bands through the coated glass. In order to design an appropriate FSS, the relative permittivity and conductivity of glass should be measured accurately. Moreover, electrical properties of the coated layer must also be known in order to obtain a resonance in the desired band. In this work, we used two different methods of measuring the permittivity and conductivity of glass. Electrical properties of one of the common glass windows (Optitherm™ SN) are presented. Simulations of Optitherm glass shows about 35 dB transmission loss over 900 - 2200 MHz frequency band.
Kim, S, Nguyen, V, Vigneswaran, S & Ngo, H 1970, 'Adsorption Equilibrium, Kinetics and Thermodynamics of Iron-coated Sponge (IOCSp) for Removal of As (III)', Proceedings of International Conference on Cleaner Technologies and Environmental Management (ICCTEM 200), International Conference on Cleaner Technologies and Environmental Management, Allied Publishers Pvt. Ltd., India, pp. 44-50.
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Kirchner, NG, Liu, D, Taha, T & Paul, G 1970, 'Capacitive Object Ranging and Material Type Classifying Sensor', Proceedings of the 8th International Conference on Intelligent Technologies (InTech), International Conference on Intelligent Technologies, University of Technology, Sydney, Sydney, Australia, pp. 130-135.
Kirchner, NG, Taha, T, Liu, D & Paul, G 1970, 'Simultaneous Material Type Classification And Mapping Data Acquisition Using A Laser Range Finder', Proceedings of the 8th International Conference on Intelligent Technologies (InTech), International Conference on Intelligent Technologies, University of Technology, Sydney, Sydney, Australia, pp. 124-129.
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This paper presents a method for single sensor simultaneous derivation of three-dimensional mapping data and material type data for use in an autonomous sandblasting system. A Hokuyo laser range finders firmware has been modified so that it returns intensity data. A range error and return intensity analyzing algorithm allows the material type of the sensed object to be determined from a set of known materials. Empirical results have demonstrated the systems ability to classify material type (under alignment and orientation constraints) from a set of known materials common to sandblasting environments (wood, concrete, metals with different finishes and cloth/fabric) and to successfully classify objects both when static and when fitted to an in-motion 6-DOF anthropomorphic robotic arm.
Kobayashi, M & Ito, T 1970, 'A Transactional Relationship Visualization System in Internet Auctions', 2007 IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT'07), 2007 IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT'07), IEEE, San Jose, pp. 72-75.
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Trading agents are very useful for developing and backtesting quality trading strategies for actions taking in the real world. However, the existing trading agent research mainly focuses on simulation using artificial data and market models. As a result, the actionable capability of developed trading strategies is often limited. In this paper, we analyze such constraints on developing actionable trading strategies for trading agents. These points are deployed into developing a series of trading strategies for trading agents through optimizing, and enhancing actionable trading strategies. We demonstrate working case studies in large-scale of market data. These approaches and their performance are evaluated from both technical and business perspectives.
Kodagoda, S, Alempijevic, A, Sehestedt, S & Dissanayake, G 1970, 'Towards improving driver situation awareness at intersections', 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, San Diego, California, pp. 3739-3744.
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Providing safety critical information to the driver is vital in reducing road accidents, especially at intersections. Intersections are complex to deal with due to the presence of large number of vehicle and pedestrian activities, and possible occlusions. Information available from only the sensors on-board a vehicle has limited value in this scenario. In this paper, we propose to utilize sensors on-board the vehicle of interest as well as the sensors that are mounted on nearby vehicles to enhance the driver situation awareness. The resulting major research challenge of sensor registration with moving observers is solved using a mutual information based technique. The response of the sensors to common causes are identified and exploited for computing their unknown relative locations. Experimental results, for a mock up traffic intersection in which mobile robots equipped with laser range finders are used, are presented to demonstrate the efficacy of the proposed technique.
Kodagoda, S, Alempijevic, A, Sehestedt, S & Dissanayake, G 1970, 'Towards improving driver situation awareness at intersections', 2007 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS, VOLS 1-9, IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, San Diego, CA, pp. 3745-3750.
Kodagoda, S, Sehestedt, S, Alempijevic, A, Zhang, Z, Donikian, A & Dissanayake, G 1970, 'Towards an enhanced driver situation awareness system', 2007 International Conference on Industrial and Information Systems, 2007 International Conference on Industrial and Information Systems, IEEE, Sri Lanka, pp. 295-300.
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This paper outlines our current research agenda to achieve enhanced driver situation awareness. A novel approach that incorporates information gathered from sensors mounted on the neighboring vehicles, in the road infrastructure as well as onboard sensory information is proposed. A solution to the fundamental issue of registering data into a common reference frame when the relative locations of the sensors themselves are changing is outlined. A description of the vehicle test bed, experimental results from information gathered from various onboard sensors, and preliminary results from the sensor registration algorithm are presented.
Kong, X 1970, 'GPS Modeling in Frequency Domain', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE, Sydney Australia, pp. 61-66.
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Although DGPS provides positioning information with high precision, when DGPS is unavailable in some situations, stand-alone GPS has to be used in vehicle navigation. The accuracy of standard GPS is low due to position measurement errors. This paper presents a frequency domain modeling approach to model GPS errors and increase GPS positioning accuracy. This approach models GPS errors using shaping filter. External sensors are employed to reduce GPS errors. This paper also presents an approach to select external sensors to meet the quality requirements of positioning system.
Konstantynowicz, J, Nguyen, TV, Kaczmarski, M, Jamiolkowski, J, Piotrowska-Jastrzebska, J & Seeman, E 1970, 'A Milk-free diet contributes little to the high prevalence of fractures in childhood', Bone, 4th International Conference on Childrens Bone Health, Elsevier BV, Montreal, CANADA, pp. S57-S57.
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Kubiak, B, Pietroni, N, Ganovelli, F & Fratarcangeli, M 1970, 'A robust method for real-time thread simulation.', VRST, ACM, ACM, pp. 85-88.
Kwok, N, Carmichael, MG, Ha, QP & Tan, K 1970, 'Statistical decision based gray-level image feature matching', Proceedings of the 8th International Conference on Intelligent Technologies (InTech'07), International Conference on Intelligent Technologies, University of Technology Sydney, Sydney, Australia, pp. 269-274.
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Na
Kwok, NM, Fang, G, Ha, QP & Liu, DK 1970, 'An enhanced particle swarm optimization algorithm for multi-modal functions', 2007 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, VOLS I-V, CONFERENCE PROCEEDINGS, IEEE International Conference on Mechatronics and Automation, IEEE, Harbin, Heilongjiang, China, pp. 457-462.
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The particle swarm optimization algorithm has been frequently employed to solve various optimization problems. Although the algorithm is performing satisfactorily while tackling unit-modal optimizations, enhancements in dealing with multi-modal functions are indeed desirable. Convergence of particles to the optimum solution is a primary and traditional requirement, however, this is achieved only after all the solutions space has been covered and evaluated. In this work, the focus is directed towards maintaining sufficient divergence of particles in multi-modal problems, by developing an alternative social interaction scheme among the swarm members. Particularly, a multiple-leaders strategy is employed in the new PSO algorithm to prevent pre-mature convergence. Results from benchmark problems are included to illustrate the effectiveness of the proposed method.
Kwok, NM, Ha, QP & Samali, B 1970, 'MR Damper Optimal Placement for Semi-Active Control of Buildings Using an Efficient Multiobjective Binary Genetic Algorithm', Automation and Robotics in Construction ― Proceedings of the 24th International Symposium on Automation and Robotics in Construction, 24th International Symposium on Automation and Robotics in Construction, International Association for Automation and Robotics in Construction (IAARC), Kochi, pp. 361-367.
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Kwok, NM, Ha, QP, Fang, G & IEEE 1970, 'Data association in bearing-only SLAM using a cost function-based approach', PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS 1-10, IEEE International Conference on Robotics and Automation, IEEE, Roma, Italy, pp. 4108-4113.
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When using an extended Kalman filter (EKF) in simultaneous localization and mapping (SLAM) for a mobile robot with bearing-only measurements, it is crucial to correctly assign correspondences between measurements and registered features in the map, otherwise the filter diverges or becomes inconsistent. Conventional methods based on the Mahalanobis distance metric may produce data association ambiguities. Its reliability may further be degraded in bearing-only SLAM due to the limited amount of information delivered from the sensor. The data association process is cast here as that of making a decision based on the sensor measurement as whether to update the EKF or not. For this, cost functions are applied taking into account the interferences from other features. The proposed approach enhances robustness of the data association and consequently assures the performance of bearing-only SLAM. Results from simulations and experiments are included to demonstrate the effectiveness of the method in a typical indoor scenario.
Kwok, NM, Ha, QP, Liu, DK, Fang, G, Tan, KC & IEEE 1970, 'Efficient particle swarm optimization: A termination condition based on the decision-making approach', 2007 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1-10, PROCEEDINGS, IEEE Congress on Evolutionary Computation, IEEE, Singapore, pp. 3353-3360.
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Evolutionary computation algorithms, such as the particle swarm optimization (PSO), have been widely applied in numerical optimizations and real-world product design, not only for their satisfactory performances but also in their relaxing the need for detailed mathematical modelling of complex systems. However, as iterative heuristic searching methods, they often suffer from difficulties in obtaining high quality solutions in an efficient manner. Since unnecessary resources used in computation iterations should be avoided, the determination of a proper termination condition for the algorithms is desirable. In this work, termination is cast as a decision-making process to end the algorithm. Specifically, the non-parametric sign- test is incorporated as a hypothetical test method such that a quantifiable termination in regard to specifiable decision-errors can be assured. Benchmark optimization problems are tackled using the PSO as an illustrative optimizer to demonstrate the effectiveness of the proposed termination condition.
Kwok, NM, Ngo, VT & Ha, QP 1970, 'PSO-Based Cooperative Control of Multiple Mobile Robots in Parameter-Tuned Formations', 2007 IEEE International Conference on Automation Science and Engineering, 2007 IEEE International Conference on Automation Science and Engineering, IEEE, Scottsdale, Arizona, USA, pp. 332-337.
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This paper addresses the coordination of multiple mobile robots in navigation formations. Difficulties encountered in conventional leader-follower approaches, such as bounds on control commands and formation constraints are revealed. A generic control structure is then proposed, based on the leader-follower strategy and virtual robot tracking framework, to parameterize the formation configuration for cooperatively deploying the robots into desired patterns. In order to achieve both tracking accuracy and control feasibility, the design is further cast as a constrained optimization problem to obtain formation configuration parameters and controller parameters simultaneously. The particle swarm optimization (PSO) algorithm is used, owing to its computationally-efficient capability of handling multi-objective criteria. Satisfactory results obtained through simulation are included to illustrate the effectiveness of the proposed technique for a number of benchmark patterns.
Laeng, J, Xiu, Z, Xu, X, Sun, X, Ru, H & Liu, Y 1970, 'Phase formation of Ni–Ti via solid state reaction', Physica Scripta, IOP Publishing, pp. 250-254.
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Lal, S & Bekiaris, E 1970, 'The reliability of sensing fatigue from neurophysiology', AusWireless 2006: International Conference on Wireless Broadband and Ultra Wideband Communications Proceedings, International conference on Wireless Broadband and Ultra Wideband Communication, UTS, Sydney, Australia, pp. 1-4.
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To date no-study has tested the reproducibility of electroencephalography (EEG) changes that occur during driver fatigue. For the EEG changes to be useful in the development of a fatigue sensing and countermeasure device the EEG response during each onset period of fatigue in individuals needs to be reproducible. The aim of the present study was to investigate the reproducibility of the EEG changes during fatigue in professional drivers in order to identify the feasibility of the EEG measure for a fatigue sensor. Twenty professional drivers were assessed during two separate sessions of a driver simulator task.
Lalanne, D & van den Hoven, E 1970, 'Supporting Human Memory with Interactive Systems', Electronic Workshops in Computing, Proceedings of HCI 2007 The 21st British HCI Group Annual Conference University of Lancaster, UK, BCS Learning & Development, Lancaster, UK, pp. 215-216.
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The major goal of this workshop is to explore how interactive systems can support human memory, using novel technologies and innovative human/machine interaction paradigms, such as tangible interaction. We believe this is important since memory and attention are becoming critical resources for our wellness, e.g. with regard to a continuously increasing information overload. The goal of this workshop is not only to support personal information management but also daily life activities, e.g. adapted to user preferences and specific contexts. Where current multimedia search engines are designed for large user communities and their applications, this workshop targets the support of individual's personal memory in everyday life. © 2007, Denis Lalanne & Elise van den Hoven.
Lam, HK, Ling, SH, Iu, HHC, Yeung, CW, Leung, FHF & IEEE 1970, 'Control of nonlinear systems with a linear state-feedback controller and a modified neural network tuned by genetic algorithm', 2007 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1-10, PROCEEDINGS, IEEE Congress on Evolutionary Computation, IEEE, Singapore, SINGAPORE, pp. 1614-1619.
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Lau, H, Huang, S & Dissanayake, G 1970, 'Multi-agent search with interim positive information', 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, San Diego, USA, pp. 3791-3796.
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A problem of searching with multiple searchers and scouts is presented. Unlike most search problems that terminate as soon as the target is found, successful detection by scouts only improve on the current knowledge of the moving target's location, such that the searchers can more effectively find and service the target in the future. The team must correspondingly plan not only to maximize the probability of the searchers directly finding the target, but also give them the best chance of exploiting any new information from potential scout detections. It is shown that this need to plan for replanning can be addressed by equivalently solving a series of simpler detection search problems that always do terminate on detection. Optimal and heuristic solution methods for this searcher/scout problem are derived, such that the capabilities of all the sensing platforms in a search task are harnessed even when only a subset are capable of actually servicing the target.
Lau, H, Huang, S & Dissanayake, G 1970, 'Multi-agent search with interim positive information', 2007 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS, VOLS 1-9, IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, San Diego, CA, pp. 3797-3802.
Law, SS & Zhu, XQ 1970, 'Dynamic condition assessment of highway bridges including operational conditions', STRUCTURAL CONDITION ASSESSMENT, MONITORING AND IMPROVEMENT, VOLS 1 AND 2, 2nd International Conference on Structural Condition Assessment, Monitoring and Improvement (SCAMI-2), SCIENCE PRESS BEIJING, Changsha, PEOPLES R CHINA, pp. 393-399.
Lawrence, E, Zmijewska, A & Pradhan, S 1970, 'Mobile Payments: Partner or Perish?', Innovative Applications of Information Technology for the Developing World, Proceedings of the 3rd Asian Applied Computing Conference, PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., Kathmandu, pp. 240-247.
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Le Roux, F, Ranjeet, E, Ghai, V, Gao, Y, Lu, J & PRess, A 1970, 'A course recommender system using multiple criteria decision making method', PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS AND KNOWLEDGE ENGINEERING (ISKE 2007), International Conference on Intelligent Systems and Knowledge Engineering, Atlantis Press, Chengdu, China, pp. 346-350.
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A recommender system is a specific type of information filtering technique that presents the user-relevant information, which is implemented by creating a user's profile and comparing it to the other existing reference characteristics stored in the database. This paper developed a course recommender system capable of helping prospective students to choose relevant post graduate courses by multiple criteria decision making method. First, the multiple criteria decision making method was given. Then, the system prototype, which aimed at amalgamating the multiple criteria decision making model and the collaborative filtering recommendation system, was described. Finally the system architecture was illustrated
Leaney, J, Rozenblit, JW & Jianfeng, P 1970, 'Foreword', 14th Annual IEEE International Conference and Workshops on the Engineering of Computer-Based Systems (ECBS'07), 14th Annual IEEE International Conference and Workshops on the Engineering of Computer-Based Systems (ECBS'07), IEEE.
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Lebbe, MA, Agbinya, JI, Chaczko, Z & Chiang, F 1970, 'Self-organized classification of dangers for secure Wireless Mesh Networks', 2007 Australasian Telecommunication Networks and Applications Conference, 2007 Australasian Telecommunication Networks and Applications Conference (ATNAC 2007), IEEE, Christchurch, New Zealand, pp. 1-6.
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This paper introduces danger theory in artificial immune system as a method of responding to danger in wireless mesh networks. It identifies the challenges in deploying Wireless Mesh networks (WMNs) and focus on secure routing as one of the key challenges in deploying WMNs. In order to implement a secure routing system, various Artificial Immune System (AIS) models were analysed. These models have been used in Intrusion Detection System (IDS) and computer security in the literature. In this paper, the authors propose to use Danger models to secure routing in WMNs. The first step in secure routing process is to identify and classify the network dangers and take necessary actions to overcome those dangers. For the classification task, we apply Self-organizing Maps (SOMs) as the classifier to classify the danger levels in WMNs. These identified danger conditions are further deployed as the warning signals for the design of secure routing protocol. The experimental results validate the proposal of applying the Danger Theory (DT) into security area and good performance is also reported by the use of Artificial Neural Network (ANN) classifier.
Lee, J, Zhu, Y & Seshia, A 1970, 'Sub-10e Charge Resolution for Room Temperature Electrometry', 2007 IEEE Sensors, 2007 IEEE Sensors, IEEE.
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Leijdekkers, P, Gay, V & Lawrence, E 1970, 'Smart Homecare System for Health Tele-monitoring.', ICDS, International Conference on Digital Society, IEEE Computer Society, Guadaloupe, French Carribean, pp. 3-3.
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An increasing aged population worldwide puts our medical capabilities to the test. Research and commercial groups are investigating novel ways to care for the aged and chronically ill both in their own homes and in care facilities. This paper describes a prototype we have developed for remote healthcare monitoring. This personalized smart homecare system uses smart phones, wireless sensors, web servers and IP webcams. To illustrate the functionality of the prototype we describe a series of typical tele-health monitoring scenarios
Leveaux, RR 1970, 'Fair Play and the Centre Referee: Can technology Provide a Fairer Platform for Competition', Fair Play and the Centre Referee: Can technology Provide a Fairer Platform for Competition, Dong A Press, Beijing, China, pp. 103-114.
Leveaux, RR 1970, 'Life Balance and Student Participation in a University Sports Club: An Australian Perspective', Life Balance and Student Participation in a University Sports Club: An Australian Perspective, FISU / UBOC, Thailand, pp. 455-460.
Li Li & Petersen, IR 1970, 'A Gramian-based approach to model reduction for uncertain systems', 2007 46th IEEE Conference on Decision and Control, 2007 46th IEEE Conference on Decision and Control, IEEE, New Orleans, USA, pp. 4373-4378.
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The paper considers the problem of model reduction for a class of uncertain systems with structured norm bounded uncertainty. The paper introduces controllability and observability Gramians in terms of certain parameterized algebraic Riccati inequalities. This enables a balanced truncation model reduction procedure for uncertain systems to be presented. Error bounds for this model reduction procedure are derived. The paper also investigates Hinfin model reduction for uncertain systems. The solution to this problem is shown to involve constructing the underlying Gramians satisfying a certain rank constrain
Li Li & Petersen, IR 1970, 'A rank constrained LMI algorithm for the robust H<sup>∞</sup> control of an uncertain system via a stable output feedback controller', 2007 46th IEEE Conference on Decision and Control, 2007 46th IEEE Conference on Decision and Control, IEEE, New Orleans, Louisiana, pp. 5423-5428.
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The paper presents a numerical algorithm for constructing a stable output feedback controller for the robust Hinfin control of an uncertain system. The uncertain systems under consideration contain structured uncertainty described by integral quadratic constraints. The controller is designed to achieve absolute stabilization with a specified level of disturbance attenuation. The main result gives an algorithm for constructing the desired controller in terms of LMIs subject to rank constraints.
Li Li & Ugrinovskii, VA 1970, 'Robust stabilization of LPV systems with structured uncertainty using minimax controllers', 2007 46th IEEE Conference on Decision and Control, 2007 46th IEEE Conference on Decision and Control, IEEE, New Orleans, LA, pp. 2767-2772.
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This paper addresses a robust control scheduling scheme for uncertain linear parameter-varying systems with structured uncertainty. A gain-scheduled controller is proposed which employs a set of minimax optimal robust controllers and incorporates an interpolation rule to achieve continuity of the controller gain over a range of operating conditions. Novel weighted time-domain integral quadratic constraints are introduced to assist in the derivation of the controller. The key idea of the interpolation for the structured uncertainty case is to transform the parameterized algebraic Riccati inequalities into equivalent linear matrix inequalities. For every fixed value of the system parameter, the proposed controller guarantees robust stability and a certain bound on the worst-case performance of the corresponding uncertain closed loop system. Furthermore, a bound on the rate of parameter variations is obtained under which the closed loop LPV system is robustly stable. To obtain the proposed controller, a set of semi-definite programming problems are introduced; this enables an efficient numerical solution to the problem under consideration.
Li, J, Choi, FC & Samali, B 1970, 'Modal-based damage identification methods for plate-like structures', Progress in Mechanics of Structures and Materials - Proceedings of the 19th Australasian Conference on the Mechanics of Structures and Materials, ACMSM19, Australasian Conference on the Mechanics of Structures and Materials, Taylor and Francis, Christchurch, New Zealand, pp. 909-914.
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A great deal of work has been done in the area of damage identification in structures using changes of modal parameters before and after damage. Most of the developments have been based on beam theory and application to beam-like or truss structures. Few researchers have contributed to in-depth study of damage identification of plate-like structures employing modal-based methods. In this paper, two modal strain energy based damage identification methods have been expanded for detecting damage and evaluation of damage severity in plate-like structures. The study is based on finite element analysis (FEA) results of a plate model. The purpose of the study is to explore feasibility of using modal strain energy based methods for damage identification of plate-like structures. The results show that one modified method based on a two-dimensional mode shape curvature in computing the damage index provides very good damage localisation and severity estimation. © 2007 Taylor & Francis Group, London.
Li, J, Liu, G & Wong, L 1970, 'Mining statistically important equivalence classes and delta-discriminative emerging patterns', Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, KDD07: The 13th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, ACM, San Jose, CA, pp. 430-+.
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Li, J, Samali, B & Crews, K 1970, 'A cost effective approach for integrity assessment of timber bridges', Progress in Mechanics of Structures and Materials - Proceedings of the 19th Australasian Conference on the Mechanics of Structures and Materials, ACMSM19, Australasian Conference on the Mechanics of Structures and Materials, Taylor and Francis, Christchurch, New Zealand, pp. 1037-1042.
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To develop a reliable and cost effective tool to assess the structural integrity of aged timber bridges is currently a challenge facing structural engineers. Whilst proof-load testing and Non-destructive Evaluation (NDE) techniques provide valuable assessment, such procedures are generally too complex, costly and time consuming to be applied across the entire inventory of timber bridges. A simple dynamic based testing method was developed by authors to lower the cost and shorten the testing time. The method has recently been used successfully to undertake field-testing of more than 180 timber bridges across NSW. This paper summarises the analytical development of this new approach together with some experimental examples. In the analytical studies, a closed form solution was obtained to provide an explicit relationship between the flexural stiffness and measured modal parameters. A beam with spring and masses attached was used to model a bridge with added mass or alternative added mass such as a trailer and/or a water tank for bridge testing. After obtaining the in-service stiffness of the tested bridge, a probabilistic modelling based on bending strength and gross stiffness (EI) of timber girders, is developed to provide an assessment of bridge load carrying capacity by using predicted in-service stiffness. Results of experimental studies and field testing using this approach are given in the references. © 2007 Taylor & Francis Group, London.
Li, J, Wessels, A, Alem, L & Stitzlein, C 1970, 'Exploring interface with representation of gesture for remote collaboration', Proceedings of the 19th Australasian conference on Computer-Human Interaction: Entertaining User Interfaces, OZCHI '07: Proceedings of the 19th conference of the computer-human interaction special interest group of Australia on Computer-human interaction: design, ACM, pp. 179-182.
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This paper reports on a laboratory study into the gesture representation interface for remote collaboration on physical tasks. Measured by task performance and user's perception of interaction, the experiment assessed two gesture representations (hands vs. cursor pointer) in the context of a video mediated interface which included a view of the remote partner. We did not find any significant difference between the hands condition and the pointer condition when measuring user's task performance. However, our result showed that participants reported an overall preference of using the pointer functionality than using the hands'. We found that participants perceived higher quality of interaction in the hands condition than in the pointer condition and there was a significant difference. Additionally, majority of the participants valued the ability of being able to see each other's face during the collaboration. We conclude with a discussion on the importance of accounting for the user's perception of interaction in addition to the traditional task performance measure in evaluating gesture representation interface, and the importance of considering these two factors in recommending the most suitable interface design with gesture representation for collaboration on physical tasks.
Li, K, Zhou, W, Yu, S & Dai, B 1970, 'A Parallel Downloading Algorithm for Redundant Networks', 7th IEEE International Conference on Computer and Information Technology (CIT 2007), 7th IEEE International Conference on Computer and Information Technology (CIT 2007), IEEE, Aizu Wakamatsu, JAPAN, pp. 177-+.
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Li, K, Zhou, W, Yu, S & Zhang, Y 1970, 'A Resource-Search and Routing Algorithm within PCDN Autonomy Area', Eighth International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT 2007), Eighth International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT 2007), IEEE.
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Li, K, Zhou, W, Yu, S & Zhang, Y 1970, 'A resource-search and routing algorithm within PCDN autonomy area', EIGHTH INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED COMPUTING, APPLICATIONS AND TECHNOLOGIES, PROCEEDINGS, 8th International Conference on Parallel and Distributed Computing, Applications and Technologies, IEEE COMPUTER SOC, Adelaide, AUSTRALIA, pp. 509-+.
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Li, K, Zhou, WL, Yu, S & Dai, B 1970, 'A parallel downloading algorithm for redundant networks', CIT 2007: 7th IEEE International Conference on Computer and Information Technology, pp. 177-182.
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In this paper, we study the downloading mechanism of BitTorrent (or BT), a P2P based popular and convenient parallel downloading software tool, point out some of its limitations, and propose an algorithm to improve its performance. In particular, we address the limitations of BT by using neighbours in P2P networks to resolve the redundant copies problem and to optimise the downloading speed. Our preliminary experiments show that the proposed enhancement algorithm works well. © 2007 IEEE.
Li, L & Petersen, IR 1970, 'A gramian-based approach to model reduction for uncertain systems', PROCEEDINGS OF THE 46TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 46th IEEE Conference on Decision and Control, IEEE, New Orleans, LA, pp. 1245-1250.
Li, L & Petersen, IR 1970, 'A rank constrained LMI algorithm for the robust H-infinity control of an uncertain system via a stable output feedback controller', PROCEEDINGS OF THE 46TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 46th IEEE Conference on Decision and Control, IEEE, New Orleans, LA, pp. 1239-1244.
Li, L, Petersen, IR & IEEE 1970, 'A rank constrained LMI algorithm for decentralized state feedback guaranteed cost control of uncertain systems with uncertainty described by integral quadratic constraints', 2007 AMERICAN CONTROL CONFERENCE, VOLS 1-13, American Control Conference, IEEE, New York, USA, pp. 257-262.
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The paper presents a numerical algorithm for constructing a decentralized state feedback guaranteed cost controller for an uncertain system. The uncertain systems under consideration contain structured uncertainty described by integral quadratic constraints. The decentralized controller is designed to achieve a closed loop system which is absolutely stable and such that a cost function satisfies a given bound for all admissible uncertainties. The main result gives an algorithm for constructing the desired controller in terms of LMIs subject to rank constraints.
Li, L, Ugrinovskii, VA & IEEE 1970, 'Robust stabilization of LPV systems with structured uncertainty using minimax controllers', PROCEEDINGS OF THE 46TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 46th IEEE Conference on Decision and Control, IEEE, New Orleans, LA, pp. 1088-1093.
Li, S 1970, 'Combining topological and directional information for spatial reasoning', IJCAI International Joint Conference on Artificial Intelligence, International Joint Conference on Artificial Intelligence, AAAI Press, Hyderabad, India, pp. 435-440.
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Current research on qualitative spatial representation and reasoning usually focuses on one single aspect of space. However, in real world applications, several aspects are often involved together. This paper extends the well-known RCC8 constraint language to deal with both topological and directional information, and then investigates the interaction between the two kinds of information. Given a topological (RCC8) constraint network and a directional constraint network, we ask when the joint network is satisfiable. We show that when the topological network is over one of the three maximal tractable subclasses of RCC8, the problem can be reduced into satisfiability problems in the RCC8 algebra and the rectangle algebra (RA). Therefore, reasoning techniques developed for RCC8 and RA can be used to solve the satisfiability problem of a joint network.
Li, Y, Archer, JW, Rosolen, G, Hay, SG, Timms, GP & Guo, YJ 1970, 'Fringe Management for a T-Shaped Millimeter-Wave Imaging System', IEEE Transactions on Microwave Theory and Techniques, Institute of Electrical and Electronics Engineers (IEEE), pp. 1246-1254.
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Two methods, the modulated scene method and modulated beam method, are proposed in this paper to manage the fringe in a T-shaped correlating millimeter-wave imaging system. The modulated scene method incorporates the fringe into the scene to form a fringe-modulated scene. The pencil beam that corresponds to the beam of the system with a zero baseline scans the modulated scene to form an image. To recover the image of the original scene, an algorithm that involves demodulation and spectrum patching is used to process the original image after deconvolution. The resulting image is a super-resolution image of the scene. The advantage of the modulated scene method is that a phase shifter is not required. The modulated beam method incorporates the fringe into the beam. By dynamically adjusting the phase of a local oscillator, the fringe scans together with the beam. The advantages of this method are that demodulation is unnecessary and only a single output (real or imaginary) from the complex correlator is necessary to generate a super-resolution image. A disadvantage is that a rapidly adjustable phase shifter is needed. The performance of these methods is theoretically analyzed and tested with simulated data. © 2007 IEEE.
Li, Y, Timms, G, Archer, J, Rosolen, G, Tello, J, Brothers, M, Hellicar, A & Guo, YJ 1970, 'Passive mm-wave imaging using two scanning fan-beam antennas', SPIE Proceedings, Defense and Security Symposium, SPIE.
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A prototype cross-correlating 190 GHz passive mm-wave imaging system has been developed. This system is based on the Mills Cross system used for radio astronomical imaging. It uses two pillbox antennas arranged in a T configuration. Each antenna generates a fan beam and the two fan beams are orthogonal to each other. By cross-correlating signals received from the two antennas, an output is obtained which is proportional to the millimeter-wave intensity radiated from the target at the intersection of the two fan beams. Beam scanning is generated by rotating a small sub-reflector inside each antenna. As a result, these relatively heavy antennas are stable during scanning and a high frame rate can be achieved. Another advantage of this approach is that only two receivers are required. The baseline (the displacement between phase centers of the two antennas) of this system is not zero, because the phase centers of the two antennas are not located at the same position. The baseline generates a fringe in the imaging system and its influence on the performance of the system is analyzed in this paper. The scanning speed of this system is also much faster than that of the Mills Cross imaging system and its influence on the resolution is also analyzed. It is found that the effect of the scanning speed is minimized when the beam scans along the equal-phase line of the fringe. This system can also be used as an active imaging system and this is discussed in another paper.
Li, Y, Wang, J & Qian, L 1970, 'A new methodology of modeling a novel large-scale magnetorheological impact damper', Nonlinear Science and Complexity, Conference on Nonlinear Science and Complexity, WORLD SCIENTIFIC PUBL CO PTE LTD, Beijing, PEOPLES R CHINA, pp. 382-387.
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Li, Y, Wang, J & Qian, L 1970, 'Nonlinear characteristics of magnetorheological damper under base excitation', Nonlinear Science and Complexity, Conference on Nonlinear Science and Complexity, WORLD SCIENTIFIC PUBL CO PTE LTD, Beijing, PEOPLES R CHINA, pp. 388-393.
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Lin, C-T, Chuang, S-W, Chen, Y-C, Ko, L-W, Liang, S-F & Jung, T-P 1970, 'EEG Effects of Motion Sickness Induced in a Dynamic Virtual Reality Environment', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, pp. 3872-3875.
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The Electroencephalogram (EEG) dynamics which relate to motion sickness are studied in this paper. Instead of providing visual or motion stimuli to the subjects to induce motion sickness, we employed a dynamic virtual-reality (VR) environment in our research. The environment consisted of a 3D surrounding VR scene and a motion platform providing a realistic situation. This environment provided the advantages of safety, low cost, and the realistic stimuli to induce motion sickness. The Motion Sickness Questionnaire (MSQ) was used to assess the sickness level, and the EEG effects on the subjects with high sickness levels were investigated using the independent component analysis (ICA). The fake-epoch extraction was then applied to the nausea-related independent components. Finally we employed the Event-Related Spectral Perturbation (ERSP) technology on the fake-epochs in order to determine the EEG dynamics during motion sickness. The experimental results show that most subjects experienced an 8-10 Hz power increase to their motion sickness-related phenomena in the parietal and motor areas. Moreover, some subjects experienced an EEG power increase of 18-20 Hz in their synchronized responses recorded in the same areas. The motion sickness-related effects and regions can be successfully obtained from our experimental results. ©2007 IEEE.
Lin, C-T, Hsieh, H-Y, Liang, S-F, Chen, Y-C & Ko, L-W 1970, 'Development of a Wireless Embedded Brain - Computer Interface and Its Application on Drowsiness Detection and Warning', ENGINEERING PSYCHOLOGY AND COGNITIVE ERGONOMICS, PROCEEDINGS, 7th International Conference on Engineering Psychology and Cognitive Ergonomics held at the HCI International 2007, Springer Berlin Heidelberg, Beijing, PEOPLES R CHINA, pp. 561-567.
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Lin, C-T, Ko, L-W, Lin, K-L, Liang, S-F, Kuo, B-C, Chung, I-F & Van, L-D 1970, 'Classification of Driver's Cognitive Responses Using Nonparametric Single-trial EEG Analysis', 2007 IEEE International Symposium on Circuits and Systems, 2007 IEEE International Symposium on Circuits and Systems, IEEE, New Orleans, LA, pp. 2019-+.
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Lin, C-T, Ko, L-W, Lin, Y-H, Jung, T-P, Liang, S-F & Hsiao, L-S 1970, 'EEG Activities of Dynamic Stimulation in VR Driving Motion Simulator', ENGINEERING PSYCHOLOGY AND COGNITIVE ERGONOMICS, PROCEEDINGS, 7th International Conference on Engineering Psychology and Cognitive Ergonomics held at the HCI International 2007, Springer Berlin Heidelberg, Beijing, PEOPLES R CHINA, pp. 551-560.
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Lin, X, Yuan, Y, Zhang, Q & Zhang, Y 1970, 'Selecting Stars: The k Most Representative Skyline Operator', 2007 IEEE 23rd International Conference on Data Engineering, 2007 IEEE 23rd International Conference on Data Engineering, IEEE, pp. 86-95.
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Skyline computation has many applications including multi-criteria decision making. In this paper, we study the problem of selecting k skyline points so that the number of points, which are dominated by at least one of these k skyline points, is maximized. We first present an efficient dynamic programming based exact algorithm in a 2d-space. Then, we show that the problem is NP-hard when the dimensionality is 3 or more and it can be approximately solved by a polynomial time algorithm with the guaranteed approximation ratio 1 - 1/e. To speed-up the computation, an efficient, scalable, index-based randomized algorithm is developed by applying the FM probabilistic counting technique. A comprehensive performance evaluation demonstrates that our randomized technique is very efficient, highly accurate, and scalable. © 2007 IEEE.
Lin, ZW, Zhu, JG, Zhong, JJ, Johansen, TH, Wang, XL & Yu, WY 1970, 'Visualization of magnetization processes of soft magnetic composites by the magneto-optical imaging technique', Journal of Applied Physics, 10th Joint Magnetism and Magnetic Materials Conference/International Magnetics Conference, AIP Publishing, Baltimore, MD, pp. 09K107-09K107.
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Attractive features of soft magnetic composites (SMCs) are high resistivity, isotropic three-dimensional flux behavior, and easy compression into the complicated shapes required in electromagnetic devices. Comprehensive understanding of the materials will help optimize design of electromagnetic devices. This paper presents the magnetization processes in a SMC sample in micron scale by means of the magneto-optical imaging technique. The sample was magnetized by magnetic fields tangential or perpendicular to the observation surface. It is observed that the flux density is higher at the particle region but lower at the interparticle space. When a tangential field is applied, the stray fields change polarization at the particle boundaries. Both results suggest that the magnetized sample behaves as a collection of individual magnetized particles rather than as a uniform and continuous magnetic substance such as soft iron although there are some interactions between neighboring particles.
Lindsay, E, Liu, D, Murray, SJ & Lowe, DB 1970, 'Remote Laboratories in Engineering Education: Trends in Students' Perceptions', Proceedings of the 18th Conference of the Australasian Association of Engineering Education, Annual Conference of Australasian Association for Engineering Education, Australasian Association for Engineering Education, University of Melbourne, Australia, pp. 1-6.
Ling, SH, Yeung, CW, Chan, KY, Iu, HHC, Leung, FHF & IEEE 1970, 'A new hybrid particle swarm optimization with wavelet theory based mutation operation', 2007 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1-10, PROCEEDINGS, IEEE Congress on Evolutionary Computation, IEEE, Singapore, SINGAPORE, pp. 1977-1984.
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Lister, R, Berglund, A, Box, I, Cope, C, Pears, A, Avram, C, Bower, M, Carbone, A, Davey, B, de Raadt, M, Doyle, B, Fitzgerald, S, Mannila, L, Kutay, C, Peltomäki, M, Sheard, J, Simon, Sutton, K, Traynor, D, Tutty, J & Venables, A 1970, 'Differing ways that computing academics understand teaching', Conferences in Research and Practice in Information Technology Series, Australasian Conference on Computer Science Education, Australian Computer Society, Ballarat, Australia, pp. 97-106.
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This paper presents first results from a wide-ranging phenomenographic study of computing academics' understanding of teaching. These first results focus upon four areas: the role of lab practical sessions, the experience of teaching success, conceptions of motivating and engaging students, and the granularity of the teacher's focus. The findings are comparable with prior work on the understandings of academics in other disciplines. This study was started as part of a workshop on phenomenography. Most participants at the workshop received their first training in phenomenography. This paper summarises the structure of the workshop. © 2007, Australian Computer Society, Inc.
Lister, RF 1970, 'The Neglected Middle Novice Programmer: Reading and Writing without Abstracting', 20th Annual Conference of the National Advisory Committee on Computing Qualifications, National Advisory Committee on Computing Qualifications, National Advisory Committee on Computing Qualifications, Nelson, New Zealand, pp. 133-140.
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Many teachers of novice programmers have lamented that students either seem to have a natural gift for programming, or have no gift for it at all. In this paper, we discuss a third group of students, the middle novice programmer. At the completion of their first semester of programming, these students can manifest a strong concrete grasp of the semantics of basic programming language constructs, by hand executing code, but they cannot reason about code at a higher goal/plan level. The research evidence presented in this paper for the existence of these middle novice programmers is from the analysis of twelve multiple choice questions, which students attempted as part of an end-of-first-semester exam.
Liu, B, Hao, Z-F, Lu, J & Liu, S-Q 1970, 'Apply Support Vector Machine for CRM Problem', 2007 International Conference on Machine Learning and Cybernetics, 2007 International Conference on Machine Learning and Cybernetics, IEEE, Hong Kong, PEOPLES R CHINA, pp. 3288-+.
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Liu, B, Lu, J, Zhang, G, Hao, Z & Gao, Y 1970, 'A support vector machine model for the situation awareness system', PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON RISK ANALYSIS AND CRISIS RESPONSE, International Conference on Risk Analysis and Crisis Response, Atlantis Press, Shanghai, China, pp. 244-248.
Liu, G, Li, J, Sim, K & Wong, L 1970, 'Distance Based Subspace Clustering with Flexible Dimension Partitioning', 2007 IEEE 23rd International Conference on Data Engineering, 2007 IEEE 23rd International Conference on Data Engineering, IEEE, pp. 1250-1254.
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Traditional similarity or distance measurements usually become meaningless when the dimensions of the datasets increase, which has detrimental effects on clustering performance. In this paper, we propose a distance-based subspace clustering model, called nCiuster, to find groups of objects that have similar values on subsets of dimensions. Instead of using a grid based approach to partition the data space into non-overlapping rectangle cells as in the density based subspace clustering algorithms, the nCiuster model uses a more flexible method to partition the dimensions to preserve meaningful and significant clusters. We develop an efficient algorithm to mine only maximal nClusters. A set of experiments are conducted to show the efficiency of the proposed algorithm and the effectiveness of the new model in preserving significant clusters. © 2007 IEEE.
Lopez-Mariscal, C, Gutiérrez-Vega, JC, McGloin, D & Dholakia, K 1970, 'Laserless Optical Trapping', Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, Frontiers in Optics, OSA.
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Lowe, D & Huang, X 1970, 'Adaptive Time-Frequency Codes for Ultra-Wideband', 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), IEEE, pp. 38-44.
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This paper investigates inter-piconet interference (IPI) in the multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) standard. IPI is caused when the time-frequency codes (TFCs) that delineate MB-OFDM piconets collide. An upper-bound on the severity of the IPI problem is obtained through a theoretical analysis of data-rate-specific punctured convolutional codes. Using these results, several methods for adaptive TFCs are proposed and analyzed. Comprehensive simulation results show how packet error rates (PERs) for simultaneous operating piconets (SOPs) can be improved by up to 2 dB by enabling adaptive TFCs at the transmitter. Several combinations of data rate, TFC, channel model and interferer power are studied. © 2007 IEEE.
Lowe, D & Huang, X 1970, 'Complementary Channel Estimation and Synchronization for OFDM', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE, pp. 23-28.
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In this paper, we present a new type of packet preamble for orthogonal frequency division multiplexing (OFDM) systems that is based on a complementary sequence pair. It is shown how this approach permits a receiver to dynamically choose between frequency-domain equalization (FDE) and time-domain equalization (TDE). With FDE offering a low-complexity zero-forcing (ZF) equalization and TDE facilitating easy minimum mean square error (MMSE) estimation, it is concluded that a spectrally-flattened complementary sequence pair offers an outstanding combination of flexibility and performance. © 2007 IEEE.
Lowe, D & Huang, X 1970, 'Hybrid Automatic Repeat Requests for MB-OFDM Ultra-Wideband', 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), IEEE.
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This paper analyzes the design and performance of hybrid automatic repeat request (HARQ) extensions to the multi- n band orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) standard. It is shown how both Type-I and Type-III HARQ can significantly reduce the packet error rate (PER) in realistic frequency-selective channels. An exhaustive search is used to find an optimal low-complexity Type-III HARQ scheme by deriving the distance spectra and bit error upper-bound for all sets of complementary puncturing matrices. The consequences of selecting sub-optimal puncturing matrices are also quantified. © 2007 IEEE.
Lowe, D & Huang, X 1970, 'Optimal Adaptive Hyperbolic Companding for OFDM', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE.
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In this paper, we derive and analyze a companding algorithm based on the hyperbolic tangent and inverse hyperbolic tangent functions for use in orthogonal frequency division multiplexing (OFDM) transceivers. Probability density functions (PDFs) that approximate the transmitted and received OFDM signals in the presence of additive white Gaussian noise (AWGN) are derived and used to analyze the degree of companding relative to the signal-to-noise ratio (SNR) and clipping level. A set of optimal companding linearity coefficients for the multiband OFDM (MB-OFDM) ultra-wideband (UWB) standard are presented. © 2007 IEEE.
Lu, DD-C 1970, 'Synthesis of Single Phase DC/AC Inverters', 2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007 2nd IEEE Conference on Industrial Electronics and Applications, IEEE, Harbin, PEOPLES R CHINA, pp. 1922-1926.
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Lu, DD-C & Molavi, B 1970, 'Hysteresis Control of Single-Stage Power-Factor-Corrected Converters', 2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007 2nd IEEE Conference on Industrial Electronics and Applications, IEEE, Harbin, PEOPLES R CHINA, pp. 943-+.
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Lu, DDC, Chu, RH, Sathiakumar, S & Agelidis, VG 1970, 'A buck converter with simple maximum power point tracking for power electronics education on solar energy systems', 2007 Australasian Universities Power Engineering Conference, 2007 Australasian Universities Power Engineering Conference (AUPEC), IEEE.
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This paper introduces a solar photovoltaic (PV) system suitable for undergraduate engineering education and training. The system consists of a buck converter using a simple maximum power point tracking (MPPT) method. Constant voltage control method is used for the approximate tracking and is implemented by analogue circuits. The circuit simplicity helps students to appreciate the benefit of MPPT in a short period of time without the need to work on complicated circuits and software coding. The proposed converter has been successfully implemented and served as a mini-project in a unit of study in power engineering studies.
Lu, DD-C, Iu, HH-C & Pjevalica, V 1970, 'A Single-Stage AC/DC Converter with High Power Factor, Regulated Bus Voltage and Output Voltage', IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2007. 33rd Annual Conference of the IEEE Industrial Electronics, IEEE, Taipei, TAIWAN, pp. 1455-+.
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Lu, H, Zhu, J, Guo, Y & Lin, Z 1970, 'A miniature short stroke tubular linear actuator and its control', 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4, International Conference on Electrical Machines and Systems, IEEE, Seoul, SOUTH KOREA, pp. 1879-+.
Luo, D, Cao, L, Ni, J & Liu, L 1970, 'Building Agent Service Oriented Multi-Agent Systems', Agent and Multi-Agent Systems: Technologies and Applications, International KES Symposium on Agents and Multiagent systems - Technologies and Applications, Springer Berlin Heidelberg, Wroclaw, Poland, pp. 11-20.
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An effective agent-based design approach is significant in engineering agent-based systems. Existing design approaches meet with challenges in designing Internet-based open agent systems. The emergence of service-oriented computing (SOC) brings in intrinsic mechanisms for complementing agent-based computing (ABS). In this paper, we investigate the dialogue between agent and service, and between ABS and SOC. As a consequence, we synthesize them and develop a design approach called agent service-oriented design (ASOD). The ASOD consists of agent service-based architectural design and detailed design. ASOD expands the content and range of agent and ABS, and synthesizes the qualities of SOC such as interoperability and openness, and the performances of ABC like flexibility and autonomy. The above techniques have been deployed in developing an online trading and mining support infrastructure F-Trade.
Luo, L, Zhang, J & Shi, Z 1970, 'Novel Block-Interleaved Multi-code CDMA System for UWB Communications', 2007 IEEE International Conference on Ultra-Wideband, 2007 IEEE International Conference on Ultra-Wideband, IEEE, IEEE, pp. 648-652.
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Ma, J, Lu, J & Zhang, G 1970, 'A Rule-Map based Technique for Information Inconsistency Verification', 2007 Information, Decision and Control, 2007 Information, Decision and Control, IEEE, Adelaide, Australia, pp. 296-301.
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This paper focuses on the problem of verifying information inconsistencies in acquired information. A rule-map based technique for data inconsistency is presented, where rule-map is used to describe hierarchical structure of rules and estimate judgment standard for consistency dynamically. Moreover, a state-based knowledge representation technique for logical inconsistency is investigated, in which knowledge is illustrated as states set of related objects and logical inconsistency is determined by the relationships between those state-sets. To illustrate the presented techniques, two examples are given.
Ma, J, Lu, J, Zhang, G & IEEE 1970, 'A rule-map based technique for information inconsistency verification', 2007 Information Decision and Control, Conference on Information Decision and Control, IEEE, Adelaide, AUSTRALIA, pp. 253-258.
Ma, J, Lu, J, Zhang, G & IEEE 1970, 'A two-level information filtering model in generating warning information', 2007 IEEE Symposium on Computational Intelligence in Multi-Criteria Decision Making, IEEE Symposium on Computational Intelligence in Multi-Criteria Decision-Making, IEEE, Hawaii, USA, pp. 354-359.
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Information filtering is an important component in warning systems. This paper proposes a two-level information filtering model for generating warning information. In this model, information is represented by n-tuple, whose elements are values of information features. The features of information are divided into critical and uncritical features. Within this model, the collected information is filtered in two stages by users at different levels. At the first stage, exceptions are separated from normal information. And at the second stage, critical exceptions are separated from uncritical information. To illustration the proposed model, an example is discussed
Macaš, M, Gabrys, B, Ruta, D & Lhotská, L 1970, 'Particle Swarm Optimisation of Multiple Classifier Systems', COMPUTATIONAL AND AMBIENT INTELLIGENCE, 9th International Work-Conference on Artificial Neural Networks, Springer Berlin Heidelberg, San Sebastian, SPAIN, pp. 333-340.
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Madhisetty, S 1970, 'Utility Computing and Its Applications', Managing Worldwide Operations & Communications with Information Technology, 2007 Information Resources Management Association, Vancouver, Canada, pp. 1037-1038.
Mahadevan, V, Chaczko, ZC & Agbinya, JI 1970, 'A Comprehensive Analytical Model for Video over IP in Telecollaboration Business System Environments', Proceedings of the 8th International Conference on Intelligent Technologies (InTech-07), International Conference on Intelligent Technologies, University of Technology Sydney, Australia, University of Technology Sydney, Australia, pp. 212-218.
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This paper proposes the emerging Telecollaboration (TC) business system environments supported by Video over IP applications, thus contributing the measurement of user experience. Initially, a simple but comprehensive analytical model for Video over IP is presented for the development of Quality of Service (QoS) indices. We then characterize the model with few illustrative units that provide an integrated context for estimation and mapping of the quality and quantity measures of Video over IP in the ubiquitous Internet. This includes application of Pittsâs software methodology, whilst addressing the second-order network performance statistics in the context of jitter (such as delay and packet-loss variation). Finally at the network level, the behavior of source, queuing, multi-service requirement mechanisms and a set of flows, connections and aggregates are measured to justify the quality inherent usability aspects of video quality. It is expected that the proposed modeling overcomes the degradation of video quality, which is seen as a fundamental problem that often occurs due to the multi-user packet switched network. Our results also suggest that the experimentally validated analytical modeling of Video over IP is of considerable value in promoting the TC initiatives.
Mansor, S, Pradhan, B, Daud, M, Jamaludin, N & Khuzaimah, Z 1970, 'Landslide susceptibility analysis using an artificial neural network model', SPIE Proceedings, Remote Sensing, SPIE, Florence, ITALY.
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Mansor, S, Pradhan, B, Daud, M, Jamaludin, N & Khuzaimah, Z 1970, 'Landslide susceptibility analysis using an artificial neural network model', Remote Sensing, International Society for Optics and Photonics, pp. 67490J-67490J.
Mansor, S, Pradhan, B, Daud, M, Jamaludin, N & Khuzaimah, Z 1970, 'Landslide susceptibility analysis using an artificial neural network model [6749-18]', PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, International Society for Optical Engineering; 1999, p. 6749.
Marjanovic, O 1970, 'The Next Stage of Operational Business Intelligence: Creating New Challenges for Business Process Management.', HICSS, IEEE Computer Society, pp. 215-215.
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Current practices in the area of Business Intelligence (BI) and Business Performance Management (BPerM) confirm the need for better integration of BI and Business Processes (BPs). This is especially the case with operational BI that aims to unify strategic and tactical decision making, by integrating BI solutions with organisation's constantly evolving BPs. However, operational BI has a very limited view of BP and Business Process Management (BProM) systems. In essence, it focuses on a limited number of core, transactional BPs that are, by definition, highly structured and repetitive. This paper argues that in order to support customer-facing employees in service-oriented industries, it is necessary to consider knowledge intensive BPs and their possible integration with operational BI. This paper offers a critical analysis of case-handling BPs in the context of operational BI. It then identifies a number of research challenges related to a new type of case-handling BProM system. © 2007 IEEE.
Marjanovic, O, Skaf-Molli, H, Molli, P & Godart, C 1970, 'Collaborative practice-oriented business processes Creating a new case for business process management and CSCW synergy.', CollaborateCom, IEEE Computer Society / ICST, pp. 448-455.
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In very recent times, organisations have started to shift their focus from highly standardised operational business processes (BPs) to other types of processes that cannot be easily replicated due to the knowledge, skills and creativity of people involved. Consequently the field of Business Process Management (BPM) has gradually evolved to include four different, but equally important components: strategy, people, processes and technology. The renewed interest in process-related knowledge and collaboration has opened a new case for possible synergy of BPM and CSCW (Computer Supported Cooperative Work) fields. The paper argues that the key to this synergy is in the field of Knowledge Management. The paper introduces the knowledge dimension of BPs and uses it to determine how collaborative processes, in particular practice-oriented creative BPs, differ from other types of organizational processes. The paper argues that in the case of these BPs, process support needs to co-evolve with process execution itself, and therefore could be also considered as an ever evolving, "organic" system, creating a new set of interesting research and practical challenges in the future.
Martelli, C & Canning, J 1970, 'Fresnel Fibres with Core-Defects for Optical Sensing', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Martelli, C & Canning, J 1970, 'Fresnel Fibres with Core-Defects for Optical Sensing', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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Fresnel fibre designs for various sensing applications, including Bragg grating writing, are presented. Propagation through lower refractive index core defects is numerically demonstrated confirming past predictions and experimental results.
Martelli, C & Canning, J 1970, 'Self-Imaged Omnidirectional Fresnel Fibres', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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Large core Fresnel fibres with self-imaged omnidirectional zone cross-sections are proposed. Numerical calculations results show the transmission bandgap widens and confinement loss decreases with increasing orders of selfimaging.
Martelli, C & Canning, J 1970, 'Self-Imaged Omnidirectional Fresnel Fibres', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Martelli, C & Canning, J 1970, 'Self-imaged omnidirectional Fresnel fibres', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 139-141.
Martelli, C, Canning, J, Gibson, B & Huntington, S 1970, 'Cryptography based on coherent scattering of light', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 148-+.
Martelli, C, Canning, J, Gibson, B & Huntington, S 1970, 'Cryptography based on Coherent Scattering of Light', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Martelli, C, Canning, J, Gibson, B & Huntington, S 1970, 'Cryptography based on Coherent Scattering of Light', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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A novel cryptographic technique based on forward scattering of light by an air structured fibre is proposed and demonstrated. The interference fringe pattern dependence on the fibre angular orientation and incident beam properties is also exploited.
Martelli, C, Olivero, P, Canning, J, Groothoff, N, Gibson, B & Huntington, S 1970, 'Air-Silica Structured Fibre Micromachining using Focused Ion Beam', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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A focused ion beam is used to mill side access holes in two types of silica structured fibres: (1) a four-ring photonic crystal fibre and (2) a 6-hole single ring step index structured fibre.
Martelli, C, Olivero, P, Canning, J, Groothoff, N, Gibson, B & Huntington, S 1970, 'Air-Silica Structured Fibre Micromachining using Focused Ion Beam', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Martelli, C, Olivero, P, Canning, J, Groothoff, N, Gibson, B & Huntington, S 1970, 'Air-silica structured fibre micromachining using focused ion beam', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 145-+.
Martelli, C, Olivero, P, Canning, J, Groothoff, N, Prawer, S, Huntington, S & Gibson, B 1970, 'Micromachining Long Period Gratings in Optical Fibres using Focused Ion Beam', Optics InfoBase Conference Papers.
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Focused ion beam micromachining of long period gratings is demonstrated for the first time. Further, gratings are fabricated and characterised within both conventional step index and structured optical fibres.
Martelli, C, Olivero, P, Canning, J, Groothoff, N, Prawer, S, Huntington, S & Gibson, B 1970, 'Micromachining Long Period Gratings in Optical Fibres using Focused Ion Beam', Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, OSA.
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Focused ion beam micromachining of long period gratings is demonstrated for the first time. Further, gratings are fabricated and characterised within both conventional step index and structured optical fibres. 2007 Optical Society of America.
Martelli, C, Olivero, P, Canning, J, Groothoff, N, Prawer, S, Huntington, S & Gibson, B 1970, 'Micromachining long period gratings in optical fibres using focused ion beam', Optics InfoBase Conference Papers.
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Focused ion beam micromachining of long period gratings is demonstrated for the first time. Further, gratings are fabricated and characterised within both conventional step index and structured optical fibres. 2007 Optical Society of America.
Maxwell, C, O'Neill, T & Leaney, J 1970, 'Formal Architecture Transformation Using Heuristics', 14th Annual IEEE International Conference and Workshops on the Engineering of Computer-Based Systems (ECBS'07), 14th Annual IEEE International Conference and Workshops on the Engineering of Computer-Based Systems (ECBS'07), IEEE, Tucson, Arizona, pp. 15-24.
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Heuristics have long been a popular and effective mechanism for capturing the knowledge of experts. In recent times, however, the more common use of heuristics has been as a means for communicating ideas at an abstract level, with little consideration to their potential as a structured approach to design improvement. With this paper we present the issues surrounding, and a structured method for, formally capturing architectural change embodied within heuristics. We demonstrate how through the application of graph theory, category theory and predicate calculus we can capture change within a heuristic and then use it to achieve formal heuristic-based transformation of a real-world system. By capturing heuristics in the structured and formal manner discussed in this paper we present ourselves with the opportunity to create a practical and reliable heuristic-based architecture transformation system. This is done within the wider context of achieving a process for optimising the non-functional qualities of a system architecture through design transformation.
McGloin, D, Buchanan, J, Burnham, DR, Lorenz, RM, Edgar, JS, Jeffries, GDM, Zhao, Y & Chiu, DT 1970, 'Controlled fusion of femtoliter-volume aqueous droplets using holographic optical tweezers', 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, IEEE.
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McGloin, D, Burnham, DR, Summers, MD, Rudd, DR, Shahvisi, A & Dewar, N 1970, 'Studies of droplet manipulation in optical traps', SPIE Proceedings, NanoScience + Engineering, SPIE, San Diego, CA.
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McGregor, C & Frize, M 1970, 'Women in Biomedical Engineering and Health Informatics', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, FRANCE, pp. 238-238.
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McGregor, C & Stacey, M 1970, 'High frequency distributed data stream event correlation to improve neonatal clinical management', Proceedings of the 2007 inaugural international conference on Distributed event-based systems, DEBS07: Distributed Event-based Systems Conference, ACM, pp. 146-151.
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Approximately eighteen percent (18%) of babies born in New South Wales (NSW), Australia require special care or neonatal intensive care admission. Premature babies can be up to 17 weeks early and may only weigh 450gms; they can spend 3 or 4 months in intensive care and have dozens of specific diseases before discharge, many of these may have long term implications for the future health of the individual. In addition, fifteen percent of neonatal intensive care admissions are transferred after delivery from smaller regional or remote hospitals without intensive care facilities to larger Tertiary Referral or Children's Hospitals with Neonatal Intensive Care Units (NICUs). Similar conditions apply within Australia, New Zealand, Canada, USA and elsewhere where small non-tertiary units are spread throughout the country. This paper presents case study based applied research in progress supporting the development of a distributed event stream processing framework to enable high frequency distributed data stream event correlation to improve neonatal clinical management. This research extends the traditional notion of event-based approaches by extending the notion of an event to incorporate a composite event that exists over a period of time, as is required within the domain of health and medicine. This is achieved through a multi-agent event calculus based approach that supports temporal abstraction. A key contribution of this research is the ability to support automated medical condition onset detection. © 2007 ACM.
Melo, P & Alem, L 1970, 'Selective Analysis of Linguistic Features Used in Video Mediated Collaboration: An Indicator of Users Sense of Co-presence', HUMAN-COMPUTER INTERACTION - INTERACT 2007, PT 2, PROCEEDINGS, 11th IFIP International Conference on Human-Computer Interaction, Springer Berlin Heidelberg, Rio de Janeiro, BRAZIL, pp. 211-214.
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Merigó, JM & Gil-Lafuente, AM 1970, 'The induced generalized OWA operator', New Dimensions in Fuzzy Logic and Related Technologies - Proceedings of the 5th EUSFLAT 2005 Conference, 5th Conference of the European-Society-for-Fuzzy-Logic-and-Technology, UNIV OSTRAVA, Ostrava, CZECH REPUBLIC, pp. 463-470.
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We study different types of aggregation operators. We focus on the generalized OWA (GOWA) operator developed by Yager which represents a generalization to a wide range of aggregation operators. We distinguish between aggregations with a descending or with an ascending order. We introduce the induced generalized OWA (IGOWA) operator which represents an extension to the GOWA operator. It generalizes a wider range of aggregation operators as the GOWA operator is a particular case of this type of generalization. We study its main properties and some particular cases obtained with it. Finally, we develop a further generalization to the IGOWA operator by using quasi-arithmetic means.
MERZ, S, OBERST, S, DYLEJKO, PG, KESSISSOGLOU, NJ, TSO, YK & MARBURG, S 1970, 'DEVELOPMENT OF COUPLED FE/BE MODELS TO INVESTIGATE THE STRUCTURAL AND ACOUSTIC RESPONSES OF A SUBMERGED VESSEL', Journal of Computational Acoustics, 7th International Conference on Theoretical and Computational Acoustics, World Scientific Pub Co Pte Lt, Hangzhou, PEOPLES R CHINA, pp. 23-47.
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An analytical model and a fully coupled finite element/boundary element model are developed for a simplified physical model of a submarine. The submerged body is modeled as a ring-stiffened cylindrical shell with finite rigid end closures, separated by bulkheads into a number of compartments and under axial excitation from the propeller-shafting system. Lumped masses are located at each end to maintain a condition of neutral buoyancy. Excitation of the hull axial modes from the propeller-shafting system causes both axial motion of the end closures and radial motion of the shell, resulting in a high level of radiated noise. In the low frequency range, only the axial modes in breathing motion are examined, which gives rise to an axisymmetric case, since these modes are efficient radiators. An expression for the structurally radiated sound pressure contributed by axial movement of the end plates and radial motion of the shell was obtained using the Helmholtz integral equation. In the computational model, the effects of the various influencing factors (ring stiffeners, bulkheads, realistic end closures, and fluid loading) on the free vibrational characteristics of the thin walled cylinder are examined. For both the analytical and computational models, the frequency responses, axial and radial responses of the cylinder, and the radiated sound pressure are compared.
Michie, A, Canning, J, Bassett, I, Haywood, J, Digweed, K, Ashton, B, Stevenson, M, Digweed, J, Lau, A & Scandurra, D 1970, 'Spun elliptically birefringent photonic crystal fibre for current sensing', MEASUREMENT SCIENCE AND TECHNOLOGY, 18th International Conference on Optical Fibre Sensors, IOP PUBLISHING LTD, Cancun, MEXICO, pp. 3070-3074.
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Milczewski, MS, Martelli, C, Canning, J, Kalinowski, HJ, Simões, JA, Stevenson, M & Talaia, P 1970, 'Orthodontic forces sensing with polymer PCF', Third European Workshop on Optical Fibre Sensors, Third European Workshop on Optical Fibre Sensors, SPIE, Naples, ITALY.
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Milczewski, MS, Martelli, C, Canning, J, Stevenson, M, Simoes, J & Kalinowski, H 1970, 'Measurement of orthodontic forces using polymer PCF', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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Polymer PCF is used as a force transducer to measure orthodontic forces. The forces observed correspond to those necessary for tooth movement. It is a promising technique that can be applied in vivo.
Milczewski, MS, Martelli, C, Canning, J, Stevenson, M, Simoes, J & Kalinowski, H 1970, 'Measurement of orthodontic forces using polymer PCF', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 151-+.
Milczewski, MS, Stevenson, M, Canning, J, Martelli, C & Kalinowski, H 1970, 'Exploiting polymer photonic crystal fibre uniqueness - A simple high resolution pressure sensor', 2007 THE JOINT INTERNATIONAL CONFERENCE ON OPTICAL INTERNET AND AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, Joint International Conference on Optical Internet/Australian Conference on Optical Fibre Technology, IEEE, Melbourne, AUSTRALIA, pp. 154-+.
Milczewski, MS, Stevenson, M, Canning, J, Martelli, C & Kalinowski, H 1970, 'Exploiting Polymer Photonic Crystal Fibre Uniqueness - A Simple High Resolution Pressure Sensor', ACOFT/AOS 2006 - 31st Australian Conference on Optical Fibre Technology and Meeting of the Australian Optical Society, 2006 Australian Conference on Optical Fibre technology (ACOFT), IEEE.
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Milczewski, MS, Stevenson, M, Canning, J, Martelli, C & Kalinowski, H 1970, 'Exploiting Polymer Photonic Crystal Fibre Uniqueness - A Simple High Resolution Pressure Sensor', COIN-ACOFT 2007 - Joint International Conference on the Optical Internet and the 32nd Australian Conference on Optical Fibre Technology, 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT), IEEE.
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A simple pressure sensor based on attenuation arising from deformation of the structure within a photonic crystal fibre is proposed and demonstrated. In particular, we compare poly(methyl)methacrylate (PMMA) and silica photonic crystal fibres.
Milne, D 1970, 'Computing semantic relatedness using Wikipedia Link structure', Proceedings of NZCSRSC 2007, the 5th New Zealand Computer Science Research Student Conference.
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This paper describes a new technique for obtaining measures of semantic relatedness. Like other recent approaches, it uses Wikipedia to provide a vast amount of structured world knowledge about the terms of interest. Our system, the Wikipedia Link Vector Model or WLVM, is unique in that it does so using only the hyperlink structure of Wikipedia rather than its full textual content. To evaluate the algorithm we use a large, widely used test set of manually defined measures of semantic relatedness as our bench-mark. This allows direct comparison of our system with other similar techniques.
Milne, DN 1970, 'Exploiting web 2.0 forallknowledge-based information retrieval', Proceedings of the ACM first Ph.D. workshop in CIKM, CIKM07: Conference on Information and Knowledge Management, ACM, pp. 69-76.
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This paper describes ongoing research into obtaining and using knowledge bases to assist information retrieval. These structures are prohibitively expensive to obtain manually, yet automatic approaches have been researched for decades with limited success. This research investigates a potential shortcut: a way to provide knowledge bases automatically, without expecting computers to replace expert human indexers. Instead we aim to replace the professionals with thousands or even millions of amateurs: with the growing community of contributors who form the core of Web 2.0. Specifically we focus on Wikipedia, which represents a rich tapestry of topics and semantics and a huge investment of human effort and judgment. We show how this can be directly exploited to provide manually-defined yet inexpensive knowledge-bases that are specifically tailored to expose the topics, terminology and semantics of individual document collections. We are also concerned with how best to make these structures available to users, and aim to produce a complete knowledge-based retrieval system-both the knowledge base and the tools to apply it-that can be evaluated by how well it assists real users in performing realistic and practical information retrieval tasks. To this end we have developed Koru, a new search engine that offers concrete evidence of the effectiveness of our Web 2.0 based techniques for assisting information retrieval. © 2007 ACM.
Milne, DN, Witten, IH & Nichols, DM 1970, 'A knowledge-based search engine powered by wikipedia', Proceedings of the sixteenth ACM conference on Conference on information and knowledge management, CIKM07: Conference on Information and Knowledge Management, ACM, pp. 445-454.
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This paper describes Koru, a new search interface that offers effective domain-independent knowledge-based information retrieval. Koru exhibits an understanding of the topics of both queries and documents. This allows it to (a) expand queries automatically and (b) help guide the user as they evolve their queries interactively. Its understanding is mined from the vast investment of manual effort and judgment that is Wikipedia. We show how this open, constantly evolving encyclopedia can yield inexpensive knowledge structures that are specifically tailored to expose the topics, terminology and semantics of individual document collections. We conducted a detailed user study with 12 participants and 10 topics from the 2005 TREC HARD track, and found that Koru and its underlying knowledge base offers significant advantages over traditional keyword search. It was capable of lending assistance to almost every query issued to it; making their entry more efficient, improving the relevance of the documents they return, and narrowing the gap between expert and novice seekers. Copyright 2007 ACM.
Montillet, J-P, Yu, K & Oppermann, I 1970, 'Location Performance Enhancement with Recursive Processing of Time-of-Arrival Measurements', 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, IEEE.
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This work deals with the development of pre-filtering techniques for low-cost devices using high data rate communications. Many positioning algorithms have been recently revisited in a centralized architecture scenario, where a cheap Mobile Sensor is surrounded by N Base Stations. The overview of the system is composed of two blocks: a Smoothing Filters and a Positioning Block. In the Smoothing Filters block, different algorithms such as smoothing filter, Recursive Least Squares and Maximum-Likelihood are developed to process multiple Time-of-Arrival measurements before triangulating the position of the Mobile Sensor. The positioning algorithms are the Taylor Series, Direct Method and Spherical Interpolation. All in all, it is shown that the recursive processing of multiple measurements at the input of the positioning algorithm improves not only the accuracy of the triangulated position, but also the robustness of the positioning algorithms. We also explain why the very good results given by the Maximum-Likelihood should only be seen as a lower-bound of the system. © 2007 IEEE.
Montillet, J-P, Yu, K & Oppermarm, I 1970, 'Location performance enhancement with recursive processing of Time-of-Arrival measurements', 2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9, 18th IEEE International Symposium on Personal, Indoor and Mobile Radio Communication, IEEE, Athens, GREECE, pp. 2005-+.
Mufti, F, Mahony, R & Kim, J 1970, 'Super-Resolution of Speed Signs in Video Sequences', 9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007), 9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007), IEEE, IEEE, pp. 278-285.
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Muqattash, A & Krunz, M 1970, 'Performance of Wireless CDMA Networks Under Optimal Link-Layer Adaptation', IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications, IEEE, Anchorage, AK, pp. 1703-+.
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Nanda, P & Fernandes, R 1970, 'Quality of Service in Telemedicine', First International Conference on the Digital Society (ICDS'07), First International Conference on the Digital Society (ICDS'07), IEEE, Guadaloupe, French Carribean, pp. 1-6.
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Telemedicine is one of the fastest growing fields with several innovations happening in managed health-care. With Internet and its infrastructures playing important role in the success of this field, it is not advisable to run some of the critical applications like high quality audio and video involved in telemedicine without proper Quality of Service (QoS) built on to the network. This paper focuses on two telemedicine setups that have been implemented on different backbone technologies. The first case discusses a virtual critical care unit that is setup for communication on an Asynchronous Transfer Mode (ATM) backbone and a possible model on how QoS for important traffic streams can be achieved in ATM. The second case discusses a minimal access operation that was remotely conducted on a patient with the help of telerobotics on a Multi Protocol Label Switching (MPLS) setup and provides a possible solution for achieving quality of service through MPLS in that scenario.
NANDA, P & SIMMONDS, AJ 1970, 'EFFECT OF NETWORK POLICIES ON INTERNET TRAFFIC ENGINEERING', Innovative Applications of Information Technology for the Developing World, Proceedings of the 3rd Asian Applied Computing Conference, PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., Kathmandu, Nepal, pp. 300-307.
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Nasimuddin & Esselle, KP 1970, 'High-gain wideband circularly polarized stacked microstrip antennas with single microstrip feeds and short horns', 2007 IEEE Antennas and Propagation Society International Symposium, 2007 IEEE Antennas and Propagation Society International Symposium, IEEE, pp. 737-740.
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A single feed system is developed to improve the axial ratio bandwidth of circularly polarized rectangular stacked microstrip antennas (CPSMAs) to about 18% by optimizing the feed location and a few other parameters. A main radiator and a parasitic patch of identical size are considered and the separation between them and location of the feed has been optimized to achieve a good AR bandwidth and minimum AR value. For improving the gain of antenna, surface mounted short horn (SMSH) has been used on the CPSMA. The structure has the directive gain of more than the lOdBic over the impedance bandwidth and a 3dB AR bandwidth of 18.8%. The 10dB return-loss bandwidth is 29.6%). The proposed feed system is very useful for rapid design of circularly polarized stacked microstrip antennas with high gain and large AR bandwidth and also very useful to design high gain and wide band microstrip antennas. © 2007 IEEE.
Nataatmadja, I, Sixsmith, AJ & Dyson, LE 1970, 'Improving Class Participation by Asian Students', Managing Worldwide Operations and Communications with Information Technology, International Conference on Information Resources Management, IGI Publishing, Vancouver, British Columbia, Canada, pp. 74-77.
Nazem, M, Sheng, D & Abbo, AJ 1970, 'Alternative stress integration schemes in large deformation problems of geomechanics', NUMERICAL MODELS IN GEOMECHANICS: NUMOG X, 10th International Symposium on Numerical Models in Geomechanics (NUMOG X), TAYLOR & FRANCIS LTD, Rhodes, GREECE, pp. 219-224.
Nazem, M, Sheng, D & Abbo, AJ 1970, 'Alternative stress integration schemes in large deformation problems of geomechanics', Proceedings of the 10th International Symposium on Numerical Models in Geomechanics NUMOG 10 - Numerical Models in Geomechanics NUMOG 10, pp. 219-224.
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In nonlinear finite element analysis, loads are usually applied in increments and the corresponding incremental displacements are obtained by solving the global equilibrium equations. The incremental strains can be computed from the incremental displacements. These strain increments are then used to determine the stresses at integration points by integrating the nonlinear constitutive equations. In a large deformation analysis, the stress-strain relationships must be objective. The objectivity requires that the constitutive equations be frame-independent such that any rigid body motion does not induce strain within the material. This principle is generally satisfied by introducing an objective stress-rate, such as Jaumann or Truesdell stress rates, into the stress-strain relationships. This study investigates alternative schemes for integrating stress-strain relationships in the large deformation analysis of geotechnical problems. It is shown that the effect of rigid body motion is equivalent to a stress transformation and this transformation can be introduced before, after or during integration of the stress-strain constitutive equations. However there is no theoretical advantage for selecting one of these strategies over the others, except the objectivity consideration. In this paper, three methods for the integration of stress-strain relationships in large deformation analysis are presented. The performance of proposed algorithms are studied and compared by means of numerical examples. The results of this study can be used in development of fast and robust algorithms for stress-integration of constitutive equations in nonlinear finite element analysis. © 2007 Taylor & Francis Group.
Ngo, DT, Tuan, HD & Nguyen, HH 1970, 'Jointly Optimal Signature Sequences and Power Allocation for CDMA', 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE.
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The problems of designing signature sequences and power allocation policy for code-division multiple access (CDMA) are important and have been the subject of intensive research in recent years. Two different criteria adopted in such design problems are the user capacity and the information-theoretic capacity. Regarding the maximization of the information-theoretic capacity, most of the previous works only consider the optimizations of signature sequences and power allocation separately. In contrast, this paper presents a jointly optimal design of signature sequences and power allocation under the sum power constraint. The proposed design is of closed-form and applicable for the general case of correlated signals and colored noise. Numerical results verify the superiority of the proposed design over the existing ones. © 2007 IEEE.
Ngo, H, Guo, W, Vigneswaran, S & Xing, W 1970, 'Potential of submerged membrane bioreactors for wastewater treatment and reuse', Proceedings of International Conference on Cleaner Technologies and Environmental Management, International Conference on Cleaner Technologies and Environmental Management, Allied Publishers Pvt. Ltd., India, pp. 800-805.
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The use of membrane bioreaetor (MBR) has been an increasing issue in replacing the conventional water and wastewater treatment processes to produce high quality treated water. In MBR systems design,the submergedmembranebioreactor (SMBR)can assist in significantlyreducingpower consumptionas the entire treatment activity (such as adsorption/biodegradation,liquid-solid separation, andsludgeaccumulationandwithdrawal)canbe carriedout in a singleunit. In this study, the performance of conventional 5MBR and non-eonventional submerged membrane adsorption bioreactor (SMABR) was evaluated in terms of organic and bacterial removal efficiencies,biomassgrowthvia specificoxygen uptake rate (SOUR) and mixed liquor suspendedsolids (MLSS), and membrane fouling through the development of transmembrane pressure (TMP) and sustainableflux.Theresults indicatethat both ofSMBRand5MBARproducedvery high effiuentquality. However,SMABRappeared to have a better performance as it achieved nearly 100%ofTOC andCOD removalswhile having lowerTMPdevelopment and higher SOUR,The MLSSkept constant (around 10 gIL) after 10 days operation in 5MBAR compared to about 4 gILofMLSS in 5MBR case. In order 10 enhancethe sustainableflux, an idea ofadding a predeterminedamountof spongeinto 5MBRreactor was proposedand tested, The results show that 10% of volume fraction of sponge addition could increase 2 folds of sustainablefluxofSMBRsystemat an air flow rate of9 L/min.
Ngoc, HP, Matsui, Y, Attaviriyanupap, P & Iso, O 1970, 'Sail Generator Feasibility Study', 2007 7th International Conference on Power Electronics and Drive Systems, 2007 7th International Conference on Power Electronics and Drive Systems, IEEE, Bangkok, Thailand, pp. 903-909.
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In this paper, the authors propose a new small size vertical axis wind power generation system for operating in standalone mode at low speed under weak wind conditions. The proposed system consists of a sail turbine and an outer zipper rotor generator. The sail turbine is designed so that it can catch energy from weak wind and also can protect itself from damage under strong wind. The generator is designed for standalone operation without brush and gear. The feasibility study of the proposed generation system is conducted using Fourier expansion. Analytical results show that the target output can be achieved.
Nguyen, HT, Ghevondian, N, Nguyen, ST & Jones, TW 1970, 'Detection of hypoglycemic episodes in children with type 1 diabetes using an optimal Bayesian neural network algorithm', Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, pp. 3140-3143.
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Hypoglycemia or low blood glucose is a common and serious side effect of insulin therapy in patients with diabetes. HypoMon is a non-invasive monitor that measures some physiological parameters continuously to provide detection of hypoglycemic episodes in Type 1 diabetes mellitus patients (TlDM). Based on heart rate, corrected QT interval of the ECG signal and skin impedance, a Bayesian neural network detection algorithm has been developed to recognize the presence of hypoglycemic episodes. From a clinical study of 25 children with T1DM, associated with hypoglycemic episodes, their heart rates increased (1.152±0.157 vs. 1.035±0.108, P<0.0001), their corrected QT intervals increased (1.088±0.086 vs. 1.020±0.062, P<0.0001) and their skin impedances reduced significantly (0.67±0.195 vs. 0.837±0.203, P<0.0001). The overall data were organized into a training set (14 cases) and a test set 14 cases) randomly selected. Using an optimal Bayesian neural network with 11 hidden nodes, and an algorithm developed from the training set, a sensitivity of 0.8346 and specificity of 0.6388 were achieved for the test set. © 2007 IEEE.
Nguyen, HT, Ghevondian, N, Nguyen, ST & Jones, TW 1970, 'Detection of Hypoglycemic Episodes in Children with Type 1 Diabetes using an Optimal Bayesian Neural Network Algorithm', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, France, pp. 3140-3143.
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Hypoglycemia or low blood glucose is a common and serious side effect of insulin therapy in patients with diabetes. HypoMon is a non-invasive monitor that measures some physiological parameters continuously to provide detection of hypoglycemic episodes in Type 1 diabetes mellitus patients (T1DM). Based on heart rate, corrected QT interval of the ECG signal and skin impedance, a Bayesian neural network detection algorithm has been developed to recognize the presence of hypoglycemic episodes. From a clinical study of 25 children with T1DM, associated with hypoglycemic episodes, their heart rates increased (1.152±0.157 vs. 1.035±0.108, P<0.0001), their corrected QT intervals increased (1.088±0.086 vs. 1.020±0.062, P<0.0001) and their skin impedances reduced significantly (0.679±0.195 vs. 0.837±0.203, P<0.0001). The overall data were organized into a training set (14 cases) and a test set 14 cases) randomly selected. Using an optimal Bayesian neural network with 11 hidden nodes, and an algorithm developed from the training set, a sensitivity of 0.8346 and specificity of 0.6388 were achieved for the test set.
Nguyen, M, Kwok, N, Ha, QP, Li, J & Samali, B 1970, 'Mitigation of Seismic Responses in Building Structures using Magneto-rheological Dampers', Proceedings of the 24th International Symposium on Automation and Robotics in Construction (ISARC 2007), International Symposium of Automation and Robotics in Construction, Indian Institute of Technology Madras, Kochi, Kerala, India.
Nguyen, MT, Kwok, NM, Ha, QP, Li, J & Samali, B 1970, 'Semi-active direct control of civil structure seismic responses using magneto-rheological dampers', Automation and Robotics in Construction - Proceedings of the 24th International Symposium on Automation and Robotics in Construction, International Symposium on Automation and Robotics in Construction, Lokavani Southern Printers, Kochi, India, pp. 157-162.
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As building structures frequently collapse and cause losses of lives and properties, due to excessive vibrations induced during earthquake periods, it is crucial to reduce the structural vibrations. This paper develops a Lyapunov-based controller for Magnetorheological (MR) dampers embedded in building structures to mitigate quake-induced vibrations. In this work, MR dampers are used as semi-active devices, taking the advantages of the fail-safe operation and low power requirement. To enhance the system performance, a Lyapunov-based controller is proposed here for direct control of the supply currents of the MR dampers placed in a multi-storey building. The effectiveness of the proposed technique is verified in simulation by using a ten-storey building model subject to quake-like excitations.
Nguyen, NT, Nguyen, HT & Su, S 1970, 'Advanced robust tracking control of a powered wheelchair system', Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, pp. 4767-4770.
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In this paper, the dynamic multivariable model of the wheelchair system is obtained including the presence of transportation lags. The triangular diagonal dominance (TDD) decoupling technique is applied to reduce this multivariable control problem into two independent scalar control problems. An advanced robust control technique for the wheelchair has been developed based on the combination of a TDD decoupling strategy and neural network controller design. The results obtained from the real-time implementation confirm that robust performance for this multivariable wheelchair control system can indeed be achieved. © 2007 IEEE.
Nguyen, NT, Nguyen, HT & Su, S 1970, 'Advanced robust tracking control of a powered wheelchair system', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, France, pp. 4767-4770.
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In this paper, the dynamic multivariable model of the wheelchair system is obtained including the presence of transportation lags. The triangular diagonal dominance (TDD) decoupling technique is applied to reduce this multivariable control problem into two independent scalar control problems. An advanced robust control technique for the wheelchair has been developed based on the combination of a TDD decoupling strategy and neural network controller design. The results obtained from the real-time implementation confirm that robust performance for this multivariable wheelchair control system can indeed be achieved.
Nguyen, TH, Nguyen, JS, Pham, DM & Nguyen, HT 1970, 'Real-Time Obstacle Detection for an Autonomous Wheelchair Using Stereoscopic Cameras', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, France, pp. 4775-4778.
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This paper is concerned with the development of a real-time obstacle avoidance system for an autonomous wheelchair using stereoscopic cameras by severely disabled people. Based on the left and right images captured from stereoscopic cameras mounted on the wheelchair, the optimal disparity is computed using the Sum of Absolute Differences (SAD) correlation method. From this disparity, a 3D depth map is constructed based on a geometric projection algorithm. A 2D map converted from this 3D map can then be employed to provide an effective obstacle avoidance strategy for this wheelchair. Experiment results obtained in a practical environment show the effectiveness of this real-time implementation.
Nguyen, TT, Tuan, HD & Nguyen, TQ 1970, 'Robust watermarking with improved modified spread spectrum', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia, pp. 1108-1112.
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This paper presents a robust approach for spread spectrum (SS) based watermarking process. Unlike the traditional SS or other improvements, this method can work properly in case of absence of watermark and achieve good performance. If the channel has no
Nguyen, V, Blumenstein, M, Muthukkumarasamy, V & Leedharn, G 1970, 'Off-line signature verification using enhanced modified direction features in conjunction with neural classifiers and support vector machines', ICDAR 2007: NINTH INTERNATIONAL CONFERENCE ON DOCUMENT ANALYSIS AND RECOGNITION, VOLS I AND II, PROCEEDINGS, 9th International Conference on Document Analysis and Recognition, IEEE COMPUTER SOC, Curitiba, BRAZIL, pp. 734-738.
Niazi, M, Wilson, D & Zowghi, D 1970, 'Organisational readiness and software process improvement', Product-Focused Software Process Improvement, Proceedings, Product Focused Software Process Improvement, Springer-Verlag, Riga, Latvia, pp. 96-107.
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This paper reports on the implementation of the SPI readiness model in three large-scale case studies. We have found that organisations with higher CMMA leavelas are more ready for SPI initiaitves than organisations with higher CMMI levels are more ready for SPO initiatives that organisations with low CMMI levels.
Niu, L, Lu, J & Zhang, G 1970, 'Cognition-driven decision support system framework', PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON RISK ANALYSIS AND CRISIS RESPONSE, International Conference on Risk Analysis and Crisis Response, Atlantis Press, Shanghai, China, pp. 353-358.
Niu, L, Lu, J & Zhang, G 1970, 'Enriching executives' situation awareness and mental models - A conceptual ESS framework', ICEIS 2007: PROCEEDINGS OF THE NINTH INTERNATIONAL CONFERENCE ON ENTERPRISE INFORMATION SYSTEMS, International Conference on Enterprise Information Systems, INSTICC, Funchal, Madeira, Portugal, pp. 510-515.
Niu, L, Lu, J, Chew, E & Zhang, G 1970, 'An Exploratory Cognitive Business Intelligence System', IEEE/WIC/ACM International Conference on Web Intelligence (WI'07), IEEE/WIC/ACM International Conference on Web Intelligence (WI'07), IEEE, pp. 812-815.
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An exploratory study of web-based cognitive business intelligence systems (CBIS) is presented in this paper. The underpinning concepts and theories are situation awareness, mental model, and naturalistic decision making (NDM). The CBIS is an extension of the traditional business intelligence system with cognitive orientation. It focuses on developing, enriching, and utilizing the executive's situation awareness, mental models, and other past experience during human-computer interaction, which drives the decision process to approach a naturalistic decision. © 2007 IEEE.
Niu, L, Lu, J, Chew, E, Zhang, G & Young, T 1970, 'An exploratory cognitive business intelligence system', PROCEEDINGS OF THE IEEE/WIC/ACM INTERNATIONAL CONFERENCE ON WEB INTELLIGENCE, IEEE/WIC/ACM international Conference on Web Intelligence and Intelligent Agent Technology, IEEE, Silicon Valley, USA, pp. 812-815.
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An exploratory study of web-based cognitive business intelligence systems (CBIS) is presented in this paper. The underpinning concepts and theories are situation awareness, mental model, and naturalistic decision making (NDM). The CBIS is an extension of the traditional business intelligence system with cognitive orientation. It focuses on developing, enriching, and utilizing the executive's situation awareness, mental models, and other past experience during human-computer interaction, which drives the decision process to approach a naturalistic decision.
Northcott, B, Miliszewska, I & Dakich, E 1970, 'ICT for (I)nspiring (C)reative (T)hinking', ASCILITE 2007 - The Australasian Society for Computers in Learning in Tertiary Education, pp. 761-768.
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The capacity for creative thinking in the workplace is a generic skill that employers value highly in their employees. Although creativity is regarded as an important employability skill, it is a quality in which tertiary graduates are often lacking. Thus, the development of creative thought should be promoted as an integral part of tertiary education; Information and Communication Technology (ICT) can assist in accomplishing this task. Research suggests that ICT has the potential to encourage and support creative thinking throughout the learning process. This paper investigates the links between the theories of encouraging creative thinking in an educational context, and the practice of incorporating ICT in the implementation of learning strategies. The paper reviews the constraints and challenges associated with the deployment of ICT as a tool for encouraging creative thinking, and concludes with suggestions for effective implementation. © 2007 Ben Northcott, Iwona Miliszewska and Eva Dakich.
Octavia, JR, Van Den Hoven, E & De Mondt, H 1970, 'Overcoming the distance between friends', People and Computers XXI HCI.But Not as We Know It - Proceedings of HCI 2007: The 21st British HCI Group Annual Conference, BCS-HCI'07, British Computer Society, Lancaster, UK, pp. 79-82.
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Staying in touch is a fundamental aspect in maintaining a long-distance relationship, whether it is in a family context or a friendship. An effective communication appliance can enable families or friends living apart to have a feeling of connectedness and help them to maintain their relationship despite the physical distance. This paper describes the results of an exploration study on people living far away from their families and friends, with a focus on how they stay in touch with their dose friends and overcome the distance. The targeted user group in this study is geographically and physically isolated people. A user study was conducted by means of a survey, focus group and interview. The results show that sharing problems and feelings between two remedy located friends is crucial. Consequently, the design goal was set to enable users to notify and physically comfort each other, in a subtle way, through a remote but shared experience, whenever a problem or feeling occurs. © 2007 Johanna Renny Octavia, Elise van den Hoven & Hans De Mondt.
Onishi, A, Thomas, P, Stuart, BH, Guerbois, JL & Forbes, SL 1970, 'TGMS analysis of the thermal decomposition of pig bone for forensic applications', Medicta 2007: The 8th Mediterranean Conference on Calorimetry and Thermal Analysis, 8th Mediterranean Conference on Calorimetry and Thermal Analysis, Palermo.
Otoom, AF, Gunes, H & Piccardi, M 1970, 'Towards Automatic Abandoned Object Classification in Visual Surveillance Systems', Proceedings of Asia-Pacific Workshop 2007 on Visual Information Processing, Asia-Pacific Workshop on Visual Information Processing, National Cheng Kung University, Tainan, Taiwan, pp. 143-149.
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One of the core components of any visual surveillance system is object classification, where detected objects are classified into different categories of interest. Although in airports or train stations, abandoned objects are mainly luggage or trolleys, none of the existing works in the literature have attempted to classify or recognize trolleys. In this paper, we analyze and classify images of trolleys, bags, persons, and groups of people by using various shape features. We conducted a set of experiments with a number of uncluttered (images collected from the Internet with clear background) and cluttered images (images segmented out from the background in real videos) using various criteria. Our experimental results show that the features extracted enable 100% recognition accuracy for the trolley category. For our four-class object recognition problem, we achieved an overall recognition accuracy of 83.3% and an average false positive rate of 6%.
Otsuki, N, Yoshizawa, S & Miyanaga, Y 1970, 'Evaluation of Adaptive Modulation and Coding Applied on a 400 Mbps OFDM Wireless Communication System', SYSTEMS MODELING AND SIMULATION: THEORY AND APPLICATIONS, ASIA SIMULATION CONFERENCE 2006, Asian Simulation Conference, Springer Japan, Tokyo, JAPAN, pp. 430-434.
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Ou, Y, Cao, L, Yu, T & Zhang, C 1970, 'Detecting Turning Points of Trading Price and Return Volatility for Market Surveillance Agents', 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, IEEE, pp. 491-494.
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Trading agent concept is very useful for trading strategy design and market mechanism design. In this paper, we introduce the use of trading agent for market surveillance. Market surveillance agents can be developed for market surveillance officers and management teams to present them alerts and indicators of abnormal market movements. In particular, we investigate the strategies for market surveillance agents to detect the impact of company announcements on market movements. This paper examines the performance of segmentation on the time series of trading price and return volatility, respectively. The purpose of segmentation is to detect the turning points of market movements caused by announcements, which are useful to identify the indicators of insider trading. The experimental results indicate that the segmentation on the time series of return volatility outperforms that on the time series of trading price. It is easier to detect the turning points of return volatility than the turning points of trading price. The results will be used to code market surveillance agents for them to monitor abnormal market movements before the disclosure of market sensitive announcements. In this way, the market surveillance agents can assist market surveillance officers with indicators and alerts. © 2007 IEEE.
Ou, Y, Cao, L, Yu, T & Zhang, C 1970, 'Detecting Turning Points of Trading Price and Return Volatility for Market Surveillance Agents', 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, IEEE, San Jose, pp. 491-494.
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Trading agent concept is very useful for trading strategy design and market mechanism design. In this paper, we introduce the use of trading agent for market surveillance. Market surveillance agents can be developed for market surveillance officers and management teams to present them alerts and indicators of abnormal market movements. In particular, we investigate the strategies for market surveillance agents to detect the impact of company announcements on market movements. This paper examines the performance of segmentation on the time series of trading price and return volatility, respectively. The purpose of segmentation is to detect the turning points of market movements caused by announcements, which are useful to identify the indicators of insider trading. The experimental results indicate that the segmentation on the time series of return volatility outperforms that on the time series of trading price. It is easier to detect the turning points of return volatility than the turning points of trading price. The results will be used to code market surveillance agents for them to monitor abnormal market movements before the disclosure of market sensitive announcements. In this way, the market surveillance agents can assist market surveillance officers with indicators and alerts.
Pal, U, Sharma, N, Wakabayashi, T & Kimura, F 1970, 'Handwritten Numeral Recognition of Six Popular Indian Scripts', Ninth International Conference on Document Analysis and Recognition (ICDAR 2007) Vol 2, Ninth International Conference on Document Analysis and Recognition (ICDAR 2007) Vol 2, IEEE, pp. 749-753.
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India is a multi-lingual multi-script country but there is not much work towards handwritten character recognition of Indian languages. In this paper we propose a modified quadratic classifier based scheme towards the recognition of off-line handwritten numerals of six popular Indian scripts. Here we consider Devnagari, Bangla, Telugu, Oriya, Kannada and Tamil scripts for our experiment. The features used in the classifier are obtained from the directional information of the numerals. For feature computation, the bounding box of a numeral is segmented into blocks and the directional features are computed in each of the blocks. These blocks are then down sampled by a Gaussian filter and the features obtained from the down sampled blocks are fed to a modified quadratic classifier for recognition. Here we have used two sets of feature. We have used 64 dimensional features for high-speed recognition and 400 dimensional features for high-accuracy recognition in our proposed system. A five-fold cross validation technique has been used for result computation and we obtained 99.56%, 98.99%, 99.37%, 98.40%, 98.71% and 98.51% accuracy from Devnagari, Bangla, Telugu, Oriya, Kannada, and Tamil scripts, respectively.
Pal, U, Sharma, N, Wakabayashi, T & Kimura, F 1970, 'Off-Line Handwritten Character Recognition of Devnagari Script', Ninth International Conference on Document Analysis and Recognition (ICDAR 2007), Ninth International Conference on Document Analysis and Recognition (ICDAR 2007), IEEE, pp. 496-500.
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In this paper we present a system towards the recognition of off-line handwritten characters of Devnagari, the most popular script in India. The features used for recognition purpose are mainly based on directional information obtained from the arc tangent of the gradient. To get the feature, at first, a 2 x 2 mean filtering is applied 4 times on the gray level image and a non-linear size normalization is done on the image. The normalized image is then segmented to 49 x 49 blocks and a Roberts filter is applied to obtain gradient image. Next, the arc tangent of the gradient (direction of gradient) is initially quantized into 32 directions and the strength of the gradient is accumulated with each of the quantized direction. Finally, the blocks and the directions are down sampled using Gaussian filter to get 392 dimensional feature vector. A modified quadratic classifier is applied on these features for recognition. We used 36172 handwritten data for testing our system and obtained 94.24% accuracy using 5-fold cross-validation scheme. © 2007 IEEE.
Palmer, CG, Gothe, J, Mitchell, CA, Riedy, C, Sweetapple, K, McLaughlin, SM, Hose, GC, Lowe, M, Goodall, H, Green, T, Sharma, D, Fane, SA, Brew, K & Jones, PR 1970, 'Finding integration pathways: developing a transdisciplinary (TD) approach for the Upper Nepean Catchment.', Proceedings of the 5th Australian Stream Management Conference. Australian rivers: making a difference, Australian Stream Management Conference, Charles Sturt University, Albury, NSW, Australia., pp. 306-311.
Parakhine, A, O'Neill, T & Leaney, J 1970, 'Application of Bayesian networks to architectural optimisation', ECBS 2007: 14TH ANNUAL IEEE INTERNATIONAL CONFERENCE AND WORKSHOPS ON THE ENGINEERING OF COMPUTER-BASED SYSTEMS, PROCEEDINGS, IEEE International Conference and Workshop on the Engineering of Computer Based Systems, IEEE, Tucson, Arizona, pp. 37-44.
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The field of optimisation covers a great multitude of principles, methods and frameworks aimed at maximisation of an objective under constraints. However, the classical optimisation can not be easily applied in the context of computer-based systems architecture as there is not enough knowledge concerning the dependencies between non-functional qualities of the system. Out approach is based on the simulation optimisation methodology where the system simulation is first created to assess the current state of the design with respect to the objectives. The results of the simulation are used to construct a Bayesian belief network which effectively becomes a base for an objective function and serves as the main source of the decision support pertaining to the guidance of the optimisation process. The potential effects of each proposed change or combination of changes is then examined by updating and re-evaluating the system simulation
Pattinson, HM & Sood, SC 1970, 'Marketers Inventing the Future: Scenario Planning for Marketing Action', Foresight 2007 Conference Papers, Foresight 2007, University of Strathclyde, Glasgow, UK, pp. 1-14.
Paul, G, Liu, DK, Kirchner, N & Webb, S 1970, 'Safe and Efficient Autonomous Exploration Technique for 3D Mapping of a Complex Bridge Maintenance Environment', Automation and Robotics in Construction ― Proceedings of the 24th International Symposium on Automation and Robotics in Construction, 24th International Symposium on Automation and Robotics in Construction, International Association for Automation and Robotics in Construction (IAARC), Kochi, Kerala, India, pp. 99-104.
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Pedraza, L, Dissanayake, G, Valls Miro, J, Rodriguez-Losada, D & Matia, F 1970, 'BS-SLAM: Shaping the World', Robotics: Science and Systems III, Robotics: Science and Systems 2007, Robotics: Science and Systems Foundation, Atlanta, GA, USA, pp. 1-8.
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This paper presents BS-SLAM, a simultaneous localization and mapping algorithm for use in unstructured environments that is effective regardless of whether features correspond to simple geometric primitives such as points and lines or not. The coordinates of the control points defining a set of B-splines are used to form a complete and compact description of the environment, thus making it feasible to use an extended Kalman filter based SLAM algorithm. The proposed method is the first known EKF-SLAM implementation capable of describing both straight and curve features in a parametric way. Appropriate observation equation that allows the exploitation of virtually all observations from a range sensor such as the ubiquitous laser range finder is developed. Efficient strategies for computing the relevant Jacobians, perform data association, initialization and expanding the map are presented. The effectiveness of the algorithms is demonstrated using experimental data.
Peng, X & Niu, Z 1970, 'The Research of the Personalization', 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops, IEEE.
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Pileggi, SF, Palau, CE & Esteve, M 1970, 'Analysis techniques and models for resource optimization in Wireless Sensor/Actuator Network environment', WIRELESS SENSOR AND ACTOR NETWORKS, 1st International Conference on Wireless Sensor and Actor Networks (WSAN'07), Springer US, Albacete, SPAIN, pp. 23-34.
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Pingzhou Tu, Xiaojing Huang & Dutkiewicz, E 1970, 'Diversity performance of interleaved spread spectrum OFDM signals over frequency selective multipath fading channels', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia.
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Pingzhou Tu, Xiaojing Huang & Dutkiewicz, E 1970, 'Peak-to-average power ratio performance of interleaved spread spectrum OFDM signals', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, AUSTRALIA, pp. 82-86.
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Pohl, ADAP & Canning, J 1970, 'Accessing the Time Response of FBG', 2007 Conference on Lasers and Electro-Optics - Pacific Rim, 2007 Conference on Lasers and Electro-Optics - Pacific Rim, IEEE.
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We report on experimental results related to the time response of Fiber Bragg Gratings. From the experimental data it is possible to retrieve important parameters such as the response delay and the grating switching time, which are properties of relevance for understanding the operation of fast tuning devices.
Pohl, ADAP & Canning, J 1970, 'Accessing the time response of FBG', Optics InfoBase Conference Papers.
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We report on experimental results related to the time response of Fiber Bragg Gratings. From the experimental data it is possible to retrieve important parameters such as the response delay and the grating switching time, which are properties of relevance for understanding the operation of fast tuning devices. © CLEO Pacific Rim 2007.
Pontt, J, Rodriguez, J, Dixon, J, San Martin, J, Aguilera, R & Rebolledo, J 1970, 'Up-Rating of Electrical Drives in Mining Installations', 2007 IEEE Industry Applications Annual Meeting, 2007 IEEE Industry Applications Annual Meeting, IEEE, New Orleans, LA, pp. 1741-+.
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Pontt, J, Rodriguez, J, Dixon, J, San Martin, J, Aguilera, R & Rebolledo, J 1970, 'Up-Rating of Electrical Drives in Mining Installations', 2007 IEEE Industry Applications Annual Meeting, 2007 IEEE Industry Applications Annual Meeting, IEEE.
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Pontt, J, Rodriguez, J, San Martin, J & Aguilera, R 1970, 'Mitigation of Sympathetic Interaction between Power Transformers Fed by Long over Head Lines Caused by Inrush Transient Currents', 2007 IEEE Industry Applications Annual Meeting, 2007 IEEE Industry Applications Annual Meeting, IEEE.
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Pontt, J, Rodriguez, J, San Martin, J & Aguilera, R 1970, 'Mitigation of Sympathetic Interaction between Power Transformers Fed by Long over Head Lines Caused by Inrush Transient Currents', 2007 IEEE Industry Applications Annual Meeting, 2007 IEEE Industry Applications Annual Meeting, IEEE, New Orleans, LA, pp. 1360-1363.
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Pradabpet, C, Yoshizawa, S, Miyanaga, Y & Dejhan, K 1970, 'A new PAPR reduction in OFDM-WLAN systems by hybrid algorithm of PTS and APPR methods', 2007 Asia-Pacific Conference on Communications, 2007 Asia Pacific Conference on Communications, IEEE.
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Pradhan, B & Mansor, S 1970, 'Three dimensional terrain data compression using second generation wavelets', WIT Transactions on Information and Communication Technologies, Vol 38, DATA MINING & INFORMATION ENGINEERING 2007, WIT Press, p. 35.
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Raad, IS & Xiaojing Huang 1970, 'A new approach to BSOFDM - parallel concatenated spreading matrices OFDM', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia.
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Raad, IS, Huang, X & Lowe, D 1970, 'A Study of Different Angles for the New Spread Matrix for BSOFDM in UWB Channels', 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), 2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07), IEEE, Guadeloupe, French Caribbean.
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Raad, IS, Huang, X & Lowe, D 1970, 'A study of different decoders for the new rotation spreading matrix for block spread OFDM in UWB channels', 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, IEEE, Penang, MALAYSIA, pp. 372-376.
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Raad, IS, Huang, X & Lowe, D 1970, 'Higher order rotation spreading matrix for block spread OFDM', 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, IEEE, Penang, MALAYSIA, pp. 377-381.
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Raad, IS, Huang, X & Raad, R 1970, 'A Study of Different Angles for Higher Order Rotation Spreading Matrix for BSOFDM in UWB Channels', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE, pp. 18-23.
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This paper presents a study into different angles for higher order Rotation spreading matrix developed for BSOFDM. It was shown previously that for block size M = 2 that the angle α = π/3 achieved the best result in terms of BER in UWB channels. It was discovered that this was no longer the case when the higher order Rotation spreading matrix was used for larger M sized blocks and that other angles produced better results which proves that the Rotation spreading matrix advantage over existing spreading matrices such as the Hadamard is its flexibility to be adapted to different communication systems. © 2007 IEEE.
Raad, IS, Huang, X & Raad, R 1970, 'New Higher Order Rotation Spreading Matrix for BSOFDM', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE, pp. 17-22.
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Previously a new matrix called the Rotation spreading matrix was proposed for Block Spread OFDM which had advantages over other well known spreading matrices such as the Hadamard in frequency selective channels such the UWB channels. Then a new paper discussed a method to expand this Rotation spreading matrix into higher order allowing the system BSOFDM to achieve higher order matrices which still showed excellent orthogonal properties which can be used in these frequency selective channels. This work is continued on the Rotation spreading matrix and this paper presents another method to expand the Rotation spreading matrix based on Complete Complementary Sets of Sequences which the authors have shown to have excellent properties in higher order matrices. This paper discusses the new method and presents a comparison between the two mentioned methods. © 2007 IEEE.
Rabbachin, A, Quek, TQS, Pinto, PC, Oppermann, I & Win, MZ 1970, 'UWB Energy Detection in the Presence of Multiple Narrowband Interferers', 2007 IEEE International Conference on Ultra-Wideband, 2007 IEEE International Conference on Ultra-Wideband, IEEE, pp. 857-862.
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There has been an emerging interest in non-coherent ultrawideband (UWB) communications, particularly as a technology for low-data rate UWB applications, due to its low-complexity and low-power consumption. In this paper, we evaluate the performance of the energy detector (ED) receiver in terms of bit error probability (BEP). We consider an ED receiver based on a conventional square-law detector and binary pulse position modulation (BPPM). We analyze the BEP in a multipath fading channel, both in the absence and presence of narrowband interference (NBI). We consider two cases: 1) single NBI, where the interfering node is located at a fixed distance from the receiver, and 2) multiple NBI, where the interfering nodes are scattered according to a spatial Poisson process. Our framework is simple enough to allow a tractable analysis and provide insights that can be of value in the design of practical UWB systems subject to interference. © 2007 IEEE.
Ren, Z, Fang, X, Wang, S, Qiu, J, Zhu, JG, Guo, Y, Yang, X, Ha, JH, Wang, Z, Sun, Y & Zhang, J 1970, 'Design optimization of an interior-type permanent magnet BLDC motor using PSO and improved MEC', 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4, International Conference on Electrical Machines and Systems, IEEE, Seoul, SOUTH KOREA, pp. 621-+.
Ren, Z, Fang, X, Wang, S, Qiu, J, Zhu, JG, Guo, Y, Yang, X, Ha, JH, Wang, Z, Sun, Y & Zhang, J 1970, 'Design optimization of an interior-type permanent magnet BLDC motor using PSO and improved MEC', Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, International Conference on Electrical Machines and Systems, IEEE, Seoul, Korea, pp. 1350-1353.
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In this paper, an improved magnetic equivalent circuit (MEC) is applied to calculate the nonlinear magnetic field in an interior-type permanent-magnet (IPM) brushless DC (BLDC) motor. Compared with the finite element method, the MEC method is much more time efficient, whereas compared with the conventional MEC method, the improved MEC is more accurate since it takes the complicate topological structure of the motor into account. A rough design of the IPM BLDC motor was firstly conducted by the improved MEC method. The particle swarm optimization (PSO) algorithm is then employed to refine the design for optimal structural parameters that result in the lowest cost and highest performance.
Rengasamy, M, Dutkiewicz, E & Hedley, M 1970, 'MAC design and analysis for wireless sensor networks with co-operative localisation', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, pp. 942-947.
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Co-operative localisation in wireless sensor networks (WSNs) is a method in which wireless sensor nodes interact with each other as peers to determine their physical position. In such networks it is crucial for communication between nodes to be contention free to meet the strict timing requirements. Medium Access Control (MAC) protocols provide the strongest influence over contention control in WSNs. The focus of this work is the design and analysis of a WSN MAC protocol suitable for supporting co-operative localisation. This paper presents a design overview of the MAC protocol and details its control structure. Preliminary simulation results are also presented to evaluate network formation aspects of the protocol. © 2007 IEEE.
Rickwood, P, Giurco, D, Glazebrook, GJ, Kazaglis, A, Thomas, LE, Zeibots, ME, Boydell, S, White, S, Caprarelli, G & McDougall, J 1970, 'Integrating population, land-use, transport, water and energy-use models to improve the sustainability of urban systems', State of Australian Cities (SOAC) Conference, State of Australian Cities Conference, SOAC, Adelaide, pp. 314-324.
Ridoux, J & Veitch, D 1970, 'A Methodology for Clock Benchmarking', 2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities, 2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities, IEEE, IEEE, pp. 1-10.
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Ridoux, J & Veitch, D 1970, 'Ten Microseconds Over LAN, for Free', 2007 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication, 2007 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication, IEEE, IEEE, pp. 105-109.
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Riedel, S & Gabrys, B 1970, 'Dynamic Pooling for the Combination of Forecasts generated using Multi Level Learning', 2007 International Joint Conference on Neural Networks, 2007 International Joint Conference on Neural Networks, IEEE, Orlando, FL, pp. 454-+.
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Ruan, D, Lu, J, Laes, E, Zhang, G, Wu, F & Hardeman, F 1970, 'Fuzzy multi-criteria group decision support in long-term options of Belgian energy policy', NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society, North American Fuzzy Information Processing Society Conference, IEEE, San Diego, CA, pp. 496-501.
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Decision making requires multiple perspectives of different people as one single decision maker may have not enough knowledge to well solve a problem alone. This is particularly true when the decision environment becomes more complex. More organizational decisions are made now in groups than ever before. Group decision making is thus a process of arriving at a judgment or a solution for a decision problem based on the input and feedback of multiple individuals. At the same time in practice, multi-criteria problems at tactical and strategic levels often involve fuzziness in their criteria and decision makers' judgments. Relevant alternatives are evaluated according to a number of criteria. Fuzzy logic based multi-criteria group decision support is justified to analysis long-term options for Belgian energy policy in this paper.
Ruiz, N, Taib, R, Shi, YD, Choi, E & Chen, F 1970, 'Using pen input features as indices of cognitive load', Proceedings of the 9th international conference on Multimodal interfaces, ICMI07: International Conference on Multimodal Interface, ACM, Nagoya, JAPAN, pp. 315-+.
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Rujikiatkamjorn, C & Indraratna, B 1970, 'Analysis of Radial Vacuum-Assisted Consolidation Using 3D Finite Element Method', Advances in Measurement and Modeling of Soil Behavior, Geo-Denver 2007, American Society of Civil Engineers, p. 12.
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In this study, a 3D numerical modelling of a single vertical drains consolidation incorporating vacuum preloading considering both vertical and horizontal drainage is presented. The effects of nonlinear soil compressibility, varying permeability and vacuum pressure distribution along the drain are examined through the dissipation of average excess pore pressure and associated settlement. A selected case history, using 3D finite element method, is employed to analyse two embankments constructed at the Second Bangkok International Airport, Thailand stabilised with prefabricated vertical drains and vacuum preloading. The behaviour of this embankment including settlements and excess pore pressures is then compared with the numerical predictions. This study reveals a close agreement between the predictions results obtained from the numerical model and the field measurements. Copyright ASCE 2007.
Ruta, D & Gabrys, B 1970, 'Neural Network Ensembles for Time Series Prediction', 2007 International Joint Conference on Neural Networks, 2007 International Joint Conference on Neural Networks, IEEE, Orlando, FL, pp. 1204-1209.
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Ruta, D, Gabrys, B, Maroulis, G & Simos, TE 1970, 'Reducing Spatial Data Complexity for Classification Models', AIP Conference Proceedings, Computational Methods in Science and Engineering, AIP, Corfu, GREECE, pp. 603-613.
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Saha, SC, Lei, C & Patterson, JC 1970, 'On the natural convection boundary layer adjacent to an inclined flat plate subject to ramp heating', Proceedings of the 16th Australasian Fluid Mechanics Conference, 16AFMC, pp. 121-124.
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An investigation of the natural convection boundary layer adjacent to an inclined semi-infinite plate subject to a temperature boundary condition which follows a ramp function up until some specified time and then remains constant is reported. The development of the flow from start-up to a steadystate has been described based on scaling analyses and verified by numerical simulations. Attention in this study has been given to fluids having a Prandtl number Pr less than unity. The boundary layer flow depends on the comparison of the time at which the ramp heating is completed and the time at which the boundary layer completes its growth. If the ramp time is long compared with the steady state time, the layer reaches a quasi steady mode in which the growth of the layer is governed solely by the thermal balance between convection and conduction. On the other hand, if the ramp is completed before the layer becomes steady; the subsequent growth is governed by the balance between buoyancy and inertia, as for the case of instantaneous heating.
Saha, SC, Lei, C & Patterson, JC 1970, 'Scaling analysis of the thermal boundary layer adjacent to an abruptly heated inclined flat plate', Proceedings of the 16th Australasian Fluid Mechanics Conference, 16AFMC, pp. 117-120.
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The natural convection thermal boundary layer adjacent to an abruptly heated inclined flat plate is investigated through a scaling analysis and verified by numerical simulations. In general, the development of the thermal flow can be characterized by three distinct stages, i.e. a start-up stage, a transitional stage and a steady state stage. Major scales including the flow velocity, flow development time, and the thermal and viscous boundary layer thicknesses are established to quantify the flow development at different stages and over a wide range of flow parameters. Details of the scaling analysis and the numerical procedures are described in this paper.
Sahel, Z, Bouchachia, A, Gabrys, B & Rogers, P 1970, 'Adaptive Mechanisms for Classification Problems with Drifting Data', KNOWLEDGE-BASED INTELLIGENT INFORMATION AND ENGINEERING SYSTEMS: KES 2007 - WIRN 2007, PT II, PROCEEDINGS, 11th International Conference on Knowledge-Based Intelligent Informational and Engineering Systems/17th Italian Workshop on Neural Networks, Springer Berlin Heidelberg, Vietri sul Mare, ITALY, pp. 419-426.
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Sakhaee, E & Jamalipour, A 1970, 'A New Stable Clustering Scheme for Pseudo-Linear Highly Mobile Ad Hoc Networks', IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, IEEE.
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Sakhaee, E, Taleb, T, Jamalipour, A, Kato, N & Nemoto, Y 1970, 'A Novel Scheme to Reduce Control Overhead and Increase Link Duration in Highly Mobile Ad Hoc Networks', 2007 IEEE Wireless Communications and Networking Conference, 2007 IEEE Wireless Communications and Networking Conference, IEEE.
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Saleh, A & Mok, L 1970, 'Four Point Bending Tests on rack Upright Frames with Two Different Support Conditions', Proceedings of the 6th International Conference on Steel and Aluminium Structures, 6th International Conference on Steel and Structural Engineering, Thomas Telford Ltd, Oxford, United Kingdom, pp. 1-8.
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Upright frames are a primary structural component in industrial racking systems. They are typically composed of two perforated thin-walled members that are linked together by a bracing system. Design computations in accordance with current industry standards rely in part on laboratory testing. One of these tests is for determining the bending strength of an upright section and is the subject of this paper. When testing the bending strength about the major axis of the upright, a four-point bending test of the assembled upright frame is made. The test arrangement prescribed by the standard must permit free twisting of the section at the supports, while the applied loads and their reactions for each upright may be applied in the plane of the sectionâs shear centre. Laboratory testing of two sets of upright frames, loaded through the uprightâs shear centre but with each set having a different support condition indicated that free twisting at the supports had only little influence on the bending capacity of the upright member. This paper outlines the test setup and reports the results in form of characteristic load deformation curves of the tested specimen.
Samali, B, Choi, F, Li, J & Crews, KI 1970, 'Experimental investigations on a laboratory timber bridge using Damage Index Method for plate-like structures', Proceedings of the 5th Australasian Congress on Applied Mechanics, ACAM 2007, Australasian Congress on Applied Mechanics, Engineers Australia, Brisbane, Australia, pp. 114-119.
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A great deal of work has been done in the area of damage identification in structures using changes of modal parameters before and after damage. Most of the developments have been based on beam theory and applied to beam-like or truss structures. Few researchers have made contributions to damage identification of plate-like structures employing a damage index method, especially for timber structures. In this paper, experimental investigations on a laboratory timber bridge using damage index method for plate-like structures are reported. Experimental modal analysis was performed to extract essential modal parameters from test data. Mode shape curvatures derived from the mode shapes were utilised in a damage index method for plate-like structures to detect single and two damage scenarios in a timber bridge. The purpose of the study is to explore feasibility of using modal strain energy based methods for damage identification of plate-like structures. The results show that the damage index method for plate-like structures using higher modes provides reasonable damage localisation for single and multiple damage cases.
Samaraweera, DN & Lu, DD-C 1970, 'Novel Implementation of Average Current Mode Controlled Power-Factor-Correction Converters', 2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007 2nd IEEE Conference on Industrial Electronics and Applications, IEEE, Harbin, PEOPLES R CHINA, pp. 1468-1472.
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Sangvikar, N, Hagare, P & Ngo, H 1970, 'Fibre Cement Industrial Water Recovery: A viable Alternative Water Source', Proceedings of International Conference on Cleaner Technologies and Environmental Management, International Conference on Cleaner Technologies and Environmental Management, Allied Publishers Pvt. Ltd., India, pp. 1-7.
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Australian water demands are increasing significantly with the increase of urbanization and industrialization. Thus, water is a valuable resource in Australia, but in short supply. There is a scope to make better use ofrecycled water as an additional water resource. Water reclamation is the best sustainable solution for water crisis. The recirculation of wastewater to reusable water can be achieved by implementing specific wastewater treatment technologies/or wastewater recycling for non-potable purposes.
Seethamraju, R & Marjanovic, O 1970, 'The role of process knowledge in a business process improvement methodology', Proceedings of the International Conference on Electronic Business (ICEB), pp. 397-404.
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The newly established holistic approach to BPM (Business Process Management) has led to increased recognition of the knowledge and experience people develop, use and share while modelling, executing and improving their business processes. However, this knowledge perspective is often neglected by the current BP improvement methodologies. Our empirical research confirms that business process improvement is, in fact, a complex, knowledge-intensive, collaborative process that consists of a set of coordinated, contextualised knowledge management processes. This paper describes the results of our on-going research project that, among other things, aims to investigate the role of individual and collective process knowledge developed and used in a business process improvement methodology deployed in a real-life, complex organization.
Sehestedt, S, Kodagoda, S, Alempijevic, A, Dissanayake, G & IEEE 1970, 'Robust lane detection in urban environments', 2007 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS, VOLS 1-9, IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, USA, pp. 123-128.
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Most of the lane marking detection algorithms reported in the literature are suitable for highway scenarios. This paper presents a novel clustered particle filter based approach to lane detection, which is suitable for urban streets in normal traffic conditions. Furthermore, a quality measure for the detection is calculated as a measure of reliability. The core of this approach is the usage of weak models, i.e. the avoidance of strong assumptions about the road geometry. Experiments were carried out in Sydney urban areas with a vehicle mounted laser range scanner and a ccd camera. Through experimentations, we have shown that a clustered particle filter can be used to efficiently extract lane markings.
Sehestedt, SA, Kodagoda, S, Alempijevic, A & Dissanayake, G 1970, 'Efficient Lane Detection and Tracking in Urban Environments', third European Conference on Mobile Robots, European Conference on Mobile Robots, ECMR, Germany, pp. 78-83.
Sejvar, JJ, Hossain, J, Fischer, M, Gurley, E, Saha, SK & Luby, SP 1970, 'Long-term outcomes of Japanese encephalitis in Bangladesh', AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 56th Annual Meeting of the American-Society-of-Tropical-Medicine-and-Hygiene, AMER SOC TROP MED & HYGIENE, Philadelphia, PA, pp. 298-298.
Sheng, D 1970, 'Finite element modelling of penetration problems in geomechanics', Proceedings of the 10th International Symposium on Numerical Models in Geomechanics NUMOG 10 - Numerical Models in Geomechanics NUMOG 10, 10th International Symposium on Numerical Models in Geomechanics (NUMOG X), TAYLOR & FRANCIS LTD, Rhodes, GREECE, pp. 239-245.
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Penetration problems in geomechanics involve the insertion of solid bodies into the ground. The solid body can be a displacement pile used to support a structural load or a testing device used to measure soil properties. Such problems are extremely difficult to model, because they usually involve severe mesh distortion caused by large deformation and frictional contact. In this paper, an Arbitrary Lagrangian-Eulerian method is proposed to overcome the mesh distortion problem. The ALE method, incorporated with an automatic load stepping scheme and a smooth contact discretisation technique, is then used to analyse the penetration of axial displacement piles into the ground. © 2007 Taylor & Francis Group.
Sheng, D 1970, 'Frictional Contact for Pile Installation', IUTAM SYMPOSIUM ON COMPUTATIONAL METHODS IN CONTACT MECHANICS, IUTAM Symposium on Computational Methods in Contact Mechanics, Springer Netherlands, Hannover, GERMANY, pp. 239-255.
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Shi, Y, Ruiz, N, Taib, R, Choi, E & Chen, F 1970, 'Galvanic skin response (GSR) as an index of cognitive load', CHI '07 Extended Abstracts on Human Factors in Computing Systems, CHI07: CHI Conference on Human Factors in Computing Systems, ACM, pp. 2651-2656.
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Multimodal user interfaces (MMUI) allow users to control computers using speech and gesture, and have the potential to minimise users. experienced cognitive load, especially when performing complex tasks. In this paper, we describe our attempt to use a physiological measure, namely Galvanic Skin Response (GSR), to objectively evaluate users. stress and arousal levels while using unimodal and multimodal versions of the same interface. Preliminary results show that users. GSR readings significantly increase when task cognitive load level increases. Moreover, users. GSR readings are found to be lower when using a multimodal interface, instead of a unimodal interface. Cross-examination of GSR data with multimodal data annotation showed promising results in explaining the peaks in the GSR data, which are found to correlate with sub-task user events. This interesting result verifies that GSR can be used to serve as an objective indicator of user cognitive load level in real time, with a very fine granularity.
Shi, Y, Taib, R, Ruiz, N, Choi, E & Chen, F 1970, 'MULTIMODAL HUMAN-MACHINE INTERFACE AND USER COGNITIVE LOAD MEASUREMENT', IFAC Proceedings Volumes, Elsevier BV, pp. 200-205.
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Multimodal user interface (MMUI) is an emerging technology that aims at providing a more intuitive and natural way for people to operate and control a computer or a machine. MMUI allows users to control a computer using various input modalities, including speech, touch, gestures and hand-writing. It has potential to minimise user's cognitive load when performing complex tasks. In this paper we present our work in building an MMUI research platform for intelligent transport system applications, and our attempt to evaluate a user's cognitive load based on analysis of his or her multimodal behaviours and physiological measurement. Copyright © 2007 IFAC.
Shih-Chen Fan, Ming-Hui Wen, Chun-Tang Hsu, Chung-Hao Hung, Shang-Hwa Hsu, Ming-Chuen Chuang, Zao, JK & Chin-Teng Lin 1970, 'Health pal: a PDA phone that will take care of your health', 2007 IEEE International Conference on Systems, Man and Cybernetics, 2007 IEEE International Conference on Systems, Man and Cybernetics, IEEE, pp. 3703-3708.
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The Kannon Project at the National Chiao Tung University (NCTU) in Taiwan has designed a smart PDA Phone, christened Health Pal, to help elders to manage their healthcare needs such as planning their own physician visits, medication schedules, exercise routines as well as monitoring their blood pressures, pulse rates and oxygen levels. The paper reports the design concepts of the device as well as the activity oriented approach the team undertook during the design process. A comparison of this device against several similar prototypes was also included to highlight its unique features. ©2007 IEEE.
Siam, MZ & Krunz, M 1970, 'A combined power-controlled protocol with adaptive MIMO gains for wireless networks', 2007 Fourth International Conference on Broadband Communications, Networks and Systems (BROADNETS '07), 2007 4th International Conference on Broadband Communications, Networks and Systems (BROADNETS 2007), IEEE, Raleigh, NC, pp. 789-798.
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Siam, MZ & Krunz, M 1970, 'Throughput-Oriented Power Control in MIMO-Based Ad Hoc Networks', 2007 IEEE International Conference on Communications, 2007 IEEE International Conference on Communications, IEEE, Glasgow, SCOTLAND, pp. 3686-3691.
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Sidhu, AS, Hussain, FK, Dillon, TS, Chang, E & IEEE 1970, 'Trust based decision making approach for protein ontology', ETFA 2007: 12TH IEEE INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, VOLS 1-3, IEEE International Conference on Emerging Technologies and Factory Automation, IEEE, Patras, GREECE, pp. 810-813.
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Biomedical Knowledge of Proteomics Domain is represented in the Protein Ontology, whose instantiations, which are undergoing evolution, need a good management and maintenance system. Protein Ontology instantiations signify information about proteins that
Singh, SPN & Waldron, KJ 1970, 'A Hybrid Motion Model for Aiding State Estimation in Dynamic Quadrupedal Locomotion', Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007 IEEE International Conference on Robotics and Automation, IEEE, Rome, ITALY, pp. 4337-+.
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Singh, SPN, Csonka, PJ & Waldron, KJ 1970, 'Robotic harness for the field assessment of galloping gaits', 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, pp. 4247-4252.
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An important tool in clarifying various theories governing the dynamics of rapid quadrupedal gaits, such as the trot and gallop, is the measurement of body attitude. Such measurements are complicated in open field environments because of the large ranges and high data rates needed due to the speeds (7 m/s) and rapid shifts in dynamics present. To address this a lightweight inertial sensing harness is introduced with sensing design based on the KOLT robot. Its mass center is collocated with the subject so as to reduce dynamic bias. This work combines dynamic gait system identification and motion estimation and is demonstrated on a Labrador retriever (Cams lupus familiaris) through measurements of the gallop over long spans (20 m) and at data rates comparable with gait laboratories (400 Hz). The results are consistent with laboratory measurements, but seem to suggest a roll and yaw cross-coupling during gallop. ©2007 IEEE.
Sinha, S & Chaczko, Z 1970, 'MAGNA: Middleware for dynamic and resource constrained sensor networks', The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007), IEEE, pp. 62-71.
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Traditionally sensor networks have been typically enterprise architecture driven, where a dedicated server is used to collect data and record in a database for analysis and historical reference. While modern day computing capabilities allow drilling through megabytes of information, it is not always the most costeffective solution. The other alternative is the use of smart sensors, whereby each node is capable of routing data to any destination using a HTTP server. This not only escalates the cost of each node but also imposes severe strain on the network - thus necessitating developers and architects to evaluate the impact of swarming and "lazy routing". The notion of the proposed middleware solution (MAGNA) is to bring about context-based processing and intelligent data capture and/or filter right up to the sensor nodes through the use of powerful "sub-net" controllers. The paper will explore the application of MAGNA as a platform capable of offering ambient intelligence in a typical sensor network environment, integrating everyday appliances and our life-style together. In doing so, two primary methodologies will be discussed on which MAGNA is essentially based, namely the Soft Systems Methodology and the Banking Model approach. © 2007 IEEE.
Skinner, BT, Nguyen, HT & Liu, DK 1970, 'Classification of EEG Signals Using a Genetic-Based Machine Learning Classifier', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, France, pp. 3120-3123.
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This paper investigates the efficacy of the geneticbased learning classifier system XCS, for the classification of noisy, artefact-inclusive human electroencephalogram (EEG) signals represented using large condition strings (108bits). EEG signals from three participants were recorded while they performed four mental tasks designed to elicit hemispheric responses. Autoregressive (AR) models and Fast Fourier Transform (FFT) methods were used to form feature vectors with which mental tasks can be discriminated. XCS achieved a maximum classification accuracy of 99.3% and a best average of 88.9%. The relative classification performance of XCS was then compared against four non-evolutionary classifier systems originating from different learning techniques. The experimental results will be used as part of our larger research effort investigating the feasibility of using EEG signals as an interface to allow paralysed persons to control a powered wheelchair or other devices.
Skinner, BT, Nguyen, HT & Liu, DK 1970, 'Distributed classifier migration in xcs for classification of electroencephalographic signals', 2007 IEEE Congress on Evolutionary Computation, 2007 IEEE Congress on Evolutionary Computation, IEEE, Singapore, pp. 2829-2836.
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This paper presents an investigation into combining migration strategies inspired by multi-deme parallel genetic algorithms with the XCS learning classifier system to provide parallel and distributed classifier migration. Migrations occur between distributed XCS classifier sub-populations using classifiers ranked according to numerosity, fitness or randomly selected. The influence of the degree-of-connectivity introduced by fully-connected, bi-directional ring and uni-directional ring topologies is examined. Results indicate that classifier migration is an effective method for improving classification accuracy, improving learning speed and reducing final classifier population size, in the single-step classification of noisy, artefact- inclusive human electroencephalographic signals. The experimental results will be used as part of our larger research effort investigating the feasibility of using EEG signals as an interface to allow paralysed persons to control a powered wheelchair or other devices.
Skinner, BT, Nguyen, HT & Liu, DK 1970, 'Hybrid Optimisation Method Using PGA and SQP Algorithm', 2007 IEEE Symposium on Foundations of Computational Intelligence, 2007 IEEE Symposium on Foundations of Computational Intelligence, IEEE, Honolulu, Hawaii, USA, pp. 73-80.
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This paper investigates the hybridisation of two very different optimisation methods, namely the Parallel Genetic Algorithm (PGA) and Sequential Quadratic Programming (SQP) algorithm. The different characteristics of genetic-based and traditional quadratic programming-based methods are discussed and to what extent the hybrid method can benefit the solving of optimisation problems with nonlinear complex objective and constraint functions. Experiments show the hybrid method effectively combines the robust and global search property of Parallel Genetic Algorithms with the high convergence velocity of the Sequential Quadratic Programming Algorithm, thereby reducing computation time, maintaining robustness and increasing solution quality.
Stacey, M, McGregor, C & Tracy, M 1970, 'An architecture for multi-dimensional temporal abstraction and its application to support neonatal intensive care', 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Lyon, FRANCE, pp. 3752-3756.
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Steele, RJ, Secombe, C & Brookes, WC 1970, 'Using Wireless Sensor Networks for Aged Care: The Patient's Perspective', Pervasive Health Conference and Workshops, 2006, International Conference on Pervasive Computing Technologies for Healthcare, IEEE Computer Society Press, Innsbruck, Austria, pp. 1-10.
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This paper presents the findings of a qualitative study on the perceptions and thoughts of elderly people on the use of current sensor network technology for assisted aged care. Focus groups of elderly people were presented with examples of current sensor nodes and example scenarios of their use, and then invited to provide input on a range of issues surrounding the design and use of the technology. The focus group findings were verified with a health care professional as a control measure. This study examines sensing based interaction, implementation methodologies and user acceptance issues specifically for the elderly, and from the elderly's perspective. A significant finding of the study is that the two most important factors for elderly acceptance of sensor technology are cost and control
Su, SW, Huang, S, Wang, L, Celler, BG, Savkin, AV, Guo, Y, Cheng, T & IEEE 1970, 'Nonparametric Hammerstein model based model predictive control for heart rate regulation', 2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, IEEE Engineering in Medicine and Biology Society Annual Conference, Medicine and Biology Society, Lyon, France, pp. 2984-2987.
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This paper proposed a novel nonparametric model based model predictive control approach for the regulation of heart rate during treadmill exercise. As the model structure of human cardiovascular system is often hard to determine, nonparametric modelling is a more realistic manner to describe complex behaviours of cardiovascular system. This paper presents a new nonparametric Hammerstein model identification approach for heart rate response modelling. Based on the pseudo-random binary sequence experiment data, we decouple the identification of linear dynamic part and input nonlinearity of the Hammerstein system. Correlation analysis is applied to acquire step response of linear dynamic component. Support Vector Regression is adopted to obtain a nonparametric description of the inverse of input static nonlinearity that is utilized to form an approximate linear model of the Hammerstein system. Based on the established model, a model predictive controller under predefined speed and acceleration constraints is designed to achieve safer treadmill exercise. Simulation results show that the proposed control algorithm can achieve optimal heart rate tracking performance under predefined constraints.
Su, SW, Nguyen, J, Jarman, R, Huang, S, Chen, W, Celler, BG, Bao, J, Lee, P & Weng, K 1970, 'A new decentralized fault tolerant control strategy and the fault accommodation of coupled drives', Proceedings of the 8th International Conference on Intelligent Technologies (InTech'07), International Conference on Intelligent Technologies, University of Technology, Sydney, Sydney, Australia, pp. 313-317.
Sugawara, T, Yoshizawa, S & Miyanaga, Y 1970, 'Dynamic Reconfigurable Architecture for a Low-Power Despreader in VSF-OFCDM Systems', 2007 IEEE International Symposium on Circuits and Systems, 2007 IEEE International Symposium on Circuits and Systems, IEEE, New Orleans, LA, pp. 2287-+.
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Sun, DA, Huang, WX, Sheng, DC & Yamamoto, H 1970, 'An Elastoplastic Model for Granular Materials Exhibiting Particle Crushing', Key Engineering Materials, 8th Asia-Pacific Symposium on Engineering Plasticity and Its Applications (AEPA 2006), Trans Tech Publications, Ltd., Nagoya Univ, Nagoya, JAPAN, pp. 1273-1278.
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A practical elastoplastic constitutive model for granular materials is presented. And the model is suitable for description of the material behaviour for a wide range of stresses, including those sufficient to cause particle crushing. With a limited number of model parameters, the model can predict the confining-pressure dependent stress-strain relation and shear strength of granular materials in three-dimensional stresses, especially of variation of shear strength and dilatancy characteristics due to particle crushing under high confining pressure. The model parameters, which have clear physical meanings, can be determined from the results of isotropic compression test and conventional triaxial compression tests. The model performance is demonstrated for triaxial compression tests of a sand for a wide range of the confining-pressure from 0.2MPa to 8.0MPa.
Sun, Y, Chen, F, Shi, Y & Chung, V 1970, 'An input-parsing algorithm supporting integration of deictic gesture in natural language interface', Human-Computer Interaction, Pt 3, Proceedings, 12th International Conference on Human-Computer Interaction (HCI International 2007), SPRINGER-VERLAG BERLIN, Beijing, PEOPLES R CHINA, pp. 206-215.
Sun, Y, Feng, B, Zhang, Y, Fang, G, Shi, J & Dutkiewicz, E 1970, 'Fast RSVP: A Cross Layer Resource Reservation Scheme for Mobile IPv6 Networks', 2007 IEEE Symposium on Computers and Communications, 2007 IEEE Symposium on Computers and Communications, IEEE, pp. 691-697.
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This paper proposes a new cross layer scheme (Fast RSVP) to reserve resources in mobile IPv6 networks. Through the cooperation of mobile IP and RSVP modules, Fast RSVP includes a number of mechanisms such as advanced resource reservation on neighbor tunnels, resource reservation on optimized routes, resource reservation for handover sessions, path merge etc. Network simulation results show that our scheme, compared with other traditional ways to reserve resources in mobile environments, has the following advantages: (1) it allows a mobile node to realize fast handover with QoS guarantees; (2) it avoids resource wasting caused by triangular routes and duplicate reservations; (3) it distinguishes different types of reservation requests, greatly reducing the handover session forced termination rate while maintaining high performance of the network. © 2007 IEEE.
Sun, Y, Shi, Y, Chen, F & Chung, V 1970, 'An efficient Multimodal language processor for parallel input strings in multimodal input fusion', ICSC 2007: International Conference on Semantic Computing, Proceedings, International Conference on Semantic Computing (ICSC 2007), IEEE COMPUTER SOC, Irvine, CA, pp. 389-396.
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Sun, Y, Shi, Y, Chen, F & Chung, V 1970, 'An efficient unification-based multimodal language processor in multimodal input fusion', Proceedings of the 19th Australasian conference on Computer-Human Interaction: Entertaining User Interfaces, OZCHI '07: Proceedings of the 19th conference of the computer-human interaction special interest group of Australia on Computer-human interaction: design, ACM, pp. 215-218.
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A Multimodal User Interface (MMUI) allows a user to interact with a computer in a way similar to human-to-human communication, for example, through speech and gesture. Being an essential component in MMUIs, Multimodal Input Fusion should be able to find the semantic interpretation of a user's intention from recognized multimodal symbols which are semantically complementary. We enhanced our efficient unification-based multimodal parsing processor, which has the potential to achieve low polynomial computational complexity while parsing versatile multimodal inputs within a speech and gesture based MMUI, to handle multimodal inputs from more than two modalities. Its ability to disambiguate speech recognition results with gesture recognition results was verified with an experiment. The analysis of experiment results demonstrates that the improvement is significant after applying this technique.
Sun, Y, Zhang, Y, Song, Y, Shi, J & Dutkiewicz, E 1970, 'Extensions to Resource Reservation Protocol (RSVP) with Guard Channel for Mobile IPv6', 2007 IEEE 66th Vehicular Technology Conference, 2007 IEEE 66th Vehicular Technology Conference, IEEE, Baltimore, MD, pp. 1528-1532.
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Sutcliffe, PJ, Solomon, AI & Edwards, J 1970, 'Finding the Population variance of Costs over the Solution Space of the TSP in Polynomial Time', Proceedings of the 11th WSEAS International Conference on APPLIED MATHEMATICS, WSEAS International Conference on Applied Mathematics, WSEAS Conference Proceedings, Dallas, Texas, pp. 23-28.
Taha, T, Miro, JV & Dissanayake, G 1970, 'Wheelchair driver assistance and intention prediction using POMDPs', PROCEEDINGS OF THE 2007 INTERNATIONAL CONFERENCE ON INTELLIGENT SENSORS, SENSOR NETWORKS AND INFORMATION PROCESSING, International Conference on Intelligent Sensors, Sensor Networks and Information Processing, IEEE Computer Society, Melbourne, Victoria, pp. 449-454.
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Electric wheelchairs give otherwise immobile people the freedom of movement, they significantly increase independence and dramatically increase quality of life. However the physical control systems of such wheelchair can be prohibitive for some users; for example, people with severe tremors. Several assisted wheelchair platforms have been developed in the past to assist such users. Algorithms that assist specific behaviors such as door - passing, follow - corridor, or avoid - obstacles have been successful. Research has seen a move towards systems that predict the users intentions, based on the users input. These predictions have been typically limited to locations immediately surrounding the wheelchair. This paper presents a new assisted wheelchair driving system with large scale intelligent intention recognition based on POMDPs (partially observable Markov decision processes). The systems acts as an intelligent agent/decision-maker, it relies on minimal user input; to predict the users intention and then autonomously drives the user to his destination. The prediction is constantly being updated as new user input is received allowing for true user/system integration. This shifts the users focus from fine motor-skilled control to coarse control intended to convey intention.
Tan, J, lu, HHC, Ling, SH & IEEE 1970, 'Symbolic representation of border collision bifurcation in switching DC/DC converters', IECON 2007: 33RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-3, CONFERENCE PROCEEDINGS, 33rd Annual Conference of the IEEE-Industrial-Electronics-Society, IEEE, Taipei, TAIWAN, pp. 2010-2014.
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Tan, KC, Goh, CK, Teoh, EJ & Liu, D 1970, 'A hybrid evolutionary approach for heterogeneous multiprocessor scheduling', Proceedings of the 8th International Conference on Intelligent Technologies (InTech), International Conference on Intelligent Technologies, University of Technology, Sdyney, Sydney, Australia, pp. 261-268.
Thomas-Kerr, J, Burnett, I & Ritz, C 1970, 'Intelligent Multimedia Delivery? It’s a question of semantics', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, AUSTRALIA, pp. 473-478.
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Thomas-Kerr, J, Janneck, J, Mattavelli, M, Burnett, I & Ritz, C 1970, 'Reconfigurable Media Coding: Self-Describing Multimedia Bitstreams', 2007 IEEE Workshop on Signal Processing Systems, 2007 IEEE Workshop on Signal Processing Systems, IEEE, Shanghai, PEOPLES R CHINA, pp. 319-+.
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Thulasiraman, P, Ramasubramanian, S & Krunz, M 1970, 'Disjoint Multipath Routing to Two Distinct Drains in a Multi-Drain Sensor Network', IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications, IEEE, Anchorage, AK, pp. 643-+.
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Tian, L, Yang, Y, Shi, J, Dutkiewicz, E & Fang, G 1970, 'Energy Efficient Integrated Scheduling of Unicast and Multicast Traffic in 802.16e WMANs', IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, IEEE, Washington, DC, pp. 3478-+.
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Tien, D & Jia, W 1970, 'Automatic road extraction from aerial images: A contemporary survey', Fourth International Conference on Information Technology and Applications, ICITA 2007, International Conference on Information Technology and Applications, Macquarie Scientific Publishing, Sydney, Australia, Harbin, China, pp. 294-299.
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Wenjing Jia is currently a part-time Research Associate at the Charles Sturt University, Australia This paper describes a contemporary literature review outcomes on automatic road extraction from aerial images. The main focus is on automatic road extraction, but it also discusses the possible extension on automatic extraction of other man-made objects, such as buildings, dams, swimming pools, etc.. This paper first discusses the background of the topic, including the difficulties of the problem and the evaluation methods. Then Ave typical method currently proposed for road extraction are reviewed. Technical details are critically reviewed for future reference and comparison. The advantages and disadvantages of each approach are discussed. Based on this discussion, future work and possible methods are suggested.
Tijing, LD, Pak, BC, Baek, BJ, Lee, DH & Cho, YI 1970, 'USING LOW-VOLTAGE-HIGH-FREQUENCY ELECTRIC FIELD TO MITIGATE MINERAL FOULING IN A HEAT EXCHANGER', 대한기계학회 춘추학술대회, pp. 1683-1688.
Tipper, JL, Galvin, AL, Ingham, E & Fisher, J 1970, 'Estimation of the osteolytic potential of noncrosslinked and crosslinked polyethylenes and ceramic-on-ceramic total hip prostheses', ASTM Special Technical Publication, pp. 75-90.
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There is currently considerable interest in the wear debris and osteolytic potential of different types of bearings used in total joint replacements. The aim of this study was first to characterize the wear and wear particles generated from two different grades of UHMWPE acetabular cups with different levels of crosslinking in a hip joint simulator. Secondly, the results for the polyethylenes were compared to an alumina ceramic-on-ceramic hip prosthesis. The wear rates of the two noncrosslinked material types were very similar at 49±8 mm3 per million cycles for the GUR 1020 and 45.6± 1.4 mm3 per million cycles for the GUR 1050. Moderate crosslinking (4 MRad) significantly (P<0.05) reduced the wear rate of the GUR 1020 material by 30 % to 35±9 mm3 per million cycles. High levels of crosslinking of GUR 1050 (10 MRad) produced a highly significant (P<0.01) 80 % reduction in wear volume. Although reduced wear volumes were observed with moderate levels of crosslinking for the 4 MRad GUR 1020 material, little benefit was conveyed by crosslinking, in terms of predicted overall biocompatibility and estimated osteolytic potential. Introducing high levels of crosslinking (10 MRad) into the GUR 1050 material reduced wear and osteolytic potential by up to five-fold compared to the other GUR 1050 materials. However, compared to the non-crosslinked and moderately crosslinked GUR 1020 materials, the highly crosslinked GUR 1050 UHMWPE had only a two-fold lower osteolytic potential. The alumina ceramic-on-ceramic hip prostheses produced extremely low wear rates under both standard and microseparation simulation conditions, and consequently the osteolytic potential of the alumina bearings was estimated to be >20-fold lower than the highly crosslinked polyethylene. Copyright © 2006 by ASTM International.
Tran, LC, Mertins, A, Dutkiewicz, E & Huang, X 1970, 'Space-Time-Frequency Codes in MB-OFDM UWB communications: advanced order-8 STFC and its performance', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, AUSTRALIA, pp. 380-+.
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Tran, N, Beydoun, G & Low, G 1970, 'Design of a peer-to-peer information sharing MAS using MOBMAS (Ontology-Centric agent oriented methodology)', ADVANCES IN INFORMATION SYSTEMS DEVELOPMENT, VOL 2, 15th International Conference on Information Systems Development, SPRINGER, Budapest, HUNGARY, pp. 63-76.
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Tran, NN, Tuan, HD & Nguyen, HH 1970, 'Optimal Training Signals and Detection for OFDM Under Colored Noise', 2007 IEEE 66th Vehicular Technology Conference, 2007 IEEE 66th Vehicular Technology Conference, IEEE, Baltimore, MD, pp. 1327-1331.
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Based on convex programming, this paper presents the optimal training signal design for orthogonal frequency-division multiplexing (OFDM) under colored noise. An effective method for OFDM symbol detection with the use of precoding is also described. Both
Tran, NN, Tuan, HD & Nguyen, HH 1970, 'Orthogonal affine precoder design for jointly optimal channel estimation and symbol detection in MIMO-OFDM systems', 2007 International Symposium on Communications and Information Technologies, 2007 International Symposium on Communications and Information Technologies, IEEE, Sydney, Australia, pp. 983-988.
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Affine precoding superimposes training signals on linearly precoded data. It enhances symbol recovery and effectively identifies the frequency-selective fading channel. Previous works have shown its advantage over the standard timemultiplexed training. T
Tran, TH, Kwok, NM, Scheding, S & Ha, QP 1970, 'Dynamic Modelling of Wheel-Terrain Interaction of a UGV', 2007 IEEE International Conference on Automation Science and Engineering, 2007 IEEE International Conference on Automation Science and Engineering, IEEE, Scottsdale, Arizona, U.S.A., pp. 369-374.
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Understanding the vehicle-terrain interaction is essential for autonomous and safe operations of skid-steering unmanned ground vehicles (UGVs). This paper presents a comprehensive analysis of the dynamic processes involved in this interaction, using the vehicle kinetics and the theory of terramechanics to derive systematically shear displacement, reaction force, and load distribution for a wheel. The new model is then summarized in the form of an algorithm to allow for computation of characteristic performance of the interaction such as slip ratios, rolling resistance, and moment of turning resistance for a number of terrain types. Given the current state of the vehicle and terrain parameters, the model can be used to estimate its next states and to predict the vehicle running path. The development is illustrated by simulation and verified with experimental data.
Tran, Y, Thuraisingham, RA, Boord, P, Nguyen, HT & Craig, A 1970, 'Using fractal analysis to improve switching rates in 'hands free' environmental control technology for the severely disabled', 2007 3rd International IEEE/EMBS Conference on Neural Engineering, 2007 3rd International IEEE/EMBS Conference on Neural Engineering, IEEE, Kohala, Hawaii, USA, pp. 406-409.
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A negative impact on the quality of life of the severely neurologically disordered such as spinal cord injured persons is the loss of the ability to control devices in their immediate environment. Consequently, we have conducted research on technology designed to restore some measure of independence by providing hands free control over these devices by using EEG signals associated with eye closure (EC) and eye opening (EO). In a previous study we demonstrated that the nonlinear technique fractal dimension analysis was a viable alternative to spectral analysis in detecting these signals in the EEG of able bodied persons. This paper explores the efficacy of using fractal dimension to detect EC/EO signals in a spinal cord injured population. The fractal dimension method was found to improve from the standard spectral analysis technique in that there was a significant reduction is the occurrence of false positive and false negative switching. This improved detection of EC/EO in the brain activity of severely disabled people will be utilised in our technology for remote switching of electrical devices.
Tran, Y, Thuraisingham, RA, Wijesuriya, N, Nguyen, HT & Craig, A 1970, 'Detecting neural changes during stress and fatigue effectively: a comparison of spectral analysis and sample entropy', 2007 3rd International IEEE/EMBS Conference on Neural Engineering, 2007 3rd International IEEE/EMBS Conference on Neural Engineering, IEEE, Kohala Coast, Hawaii, USA, pp. 350-353.
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Brain computer interface (BCI) technology as its name implies, relies upon decoding brain signals into operational commands. Aside from needing effective means of control, successful BCIs need to remain stable in varying physiological conditions. BCIs need to be developed with mechanisms to recognise and respond to physiological states (such as stress and fatigue) that can disrupt user capability. This paper compares a spectral analysis of EEG signals technique with a nonlinear method of sample entropy to detect changes in brain dynamics during moments of stress and fatigue. The results demonstrated few changes in the spectral frequency bands of the EEG during fatigue and stress conditions. However, when the EEG signals were analysed with the nonlinear technique of sample entropy the results indicated a reduction of complexity during moments of fatigue and stress and an increase in complexity during moments of engagement to the task.
Travaly, Y, Mandeep, B, Carbonell, L, Tokei, Z, Van Olmen, J, Iacopi, F, Van Hove, M, Stucchi, M & Maex, K 1970, 'On a more accurate assessment of scaled copper/low-k interconnects performance', IEEE TRANSACTIONS ON SEMICONDUCTOR MANUFACTURING, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, pp. 333-340.
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Travaly, Y, Sinapi, F, Heylen, N, Humbert, A, Delande, M, Caluwaert, R, de Mussy, JP, Vereecke, G, Baklanov, MR, Iacopi, F, Hernandez, JL, Beyer, G, Fischer, P & IEEE 1970, 'The critical role of the metal/porous low-k interface in post direct CMP defectivity generation and resulting ULK surface and bulk hydrophilisation', Proceedings of the IEEE 2007 International Interconnect Technology Conference, 10th Annual International Interconnect Technology Conference (IITC), IEEE, Burlingame, CA, pp. 164-166.
Trieu, HT, Nguyen, HT & Willey, K 1970, 'Obstacle avoidance for power wheelchair using Bayesian neural network', Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, pp. 4771-4774.
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In this paper we present a real-time obstacle avoidance algorithm using a Bayesian neural network for a laser based wheelchair system. The raw laser data is modified to accommodate the wheelchair dimensions, allowing the freespace to be determined accurately in real-time. Data acquisition is performed to collect the patterns required for training the neural network. A Bayesian frame work is applied to determine the optimal neural network structure for the training data. This neural network is trained under the supervision of the Bayesian rule and the obstacle avoidance task is then implemented for the wheelchair system. Initial results suggest this approach provides an effective solution for autonomous tasks, suggesting Bayesian neural networks may be useful for wider assistive technology applications. © 2007 IEEE.
Trieu, HT, Nguyen, HT, Willey, K & IEEE 1970, 'Obstacle avoidance for power wheelchair using Bayesian neural network', 2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, IEEE Engineering in Medicine and Biology Society Annual Conference, IEEE, Lyon, France, pp. 4771-4774.
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In this paper we present a real-time obstacle avoidance algorithm using a Bayesian neural network for a laser based wheelchair system. The raw laser data is modified to accommodate the wheelchair dimensions, allowing the freespace to be determined accurately in real-time. Data acquisition is performed to collect the patterns required for training the neural network. A Bayesian frame work is applied to determine the optimal neural network structure for the training data. This neural network is trained under the supervision of the Bayesian rule and the obstacle avoidance task is then implemented for the wheelchair system. Initial results suggest this approach provides an effective solution for autonomous tasks, suggesting Bayesian neural networks may be useful for wider assistive technology applications.
Tsang, IW, Kocsor, A & Kwok, JT 1970, 'Simpler core vector machines with enclosing balls', Proceedings of the 24th international conference on Machine learning, ICML '07 & ILP '07: The 24th Annual International Conference on Machine Learning held in conjunction with the 2007 International Conference on Inductive Logic Programming, ACM, pp. 911-918.
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The core vector machine (CVM) is a recent approach for scaling up kernel methods based on the notion of minimum enclosing ball (MEB). Though conceptually simple, an efficient implementation still requires a sophisticated numerical solver. In this paper, we introduce the enclosing ball (EB) problem where the ball's radius is fixed and thus does not have to be minimized. We develop efficient (1 + e)-approximation algorithms that are simple to implement and do not require any numerical solver. For the Gaussian kernel in particular, a suitable choice of this (fixed) radius is easy to determine, and the center obtained from the (1 + e)-approximation of this EB problem is close to the center of the corresponding MEB. Experimental results show that the proposed algorithm has accuracies comparable to the other large-scale SVM implementations, but can handle very large data sets and is even faster than the CVM in general.
Tuan, HD, Nguyen, HH, Tran, NN, Nguyen, V & IEEE 1970, 'An effective global optimization algorithm for wireless MIMO channel estimation', 2007 2ND IEEE INTERNATIONAL WORKSHOP ON COMPUTATIONAL ADVANCES IN MULTI-SENSOR ADAPTIVE PROCESSING, IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, IEEE, St Thomas, VI, pp. 209-212.
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The problem of channel estimation for spatially correlated fading multiple-input multiple-output (MIMO) channels is considered. Based on the channel's second order statistic, the minimum mean-square error (MMSE) channel estimator that works with the supe
Tuan, HD, Pham, DH, Vo, B & Nguyen, TQ 1970, 'Entropy of General Gaussian Distributions and MIMO Channel Capacity Maximizing Precoder and Decoder', 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE, Honolulu, HI, pp. 325-328.
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Exploiting channel state information at the transmitter and receiver to design an optimal linear precoder and decoder for a multiple-input multiple-output (MIMO) communication system is an active research area. The design is often based on the informatio
Turek, I, Káčik, D, Canning, J, Martinček, I & Issa, N 1970, '<title>Intermodal interference in photonic crystal fibers</title>', SPIE Proceedings, SPIE Proceedings, SPIE, Liberec, CZECH REPUBLIC.
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Ullmer, B, Schmidt, A, Hornecker, E, Hummels, C, Jacob, RJ & van den Hoven, E 1970, 'Proceedings of the First International Conference on Tangible and Embedded Interaction (TEI'07)', TEI'07, TEI'07, ACM, Baton Rouge, LA, USA.
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It is our great pleasure to present the proceedings of the First International Conference on Tangible and Embedded Interaction. This new conference addresses interaction, design, tools, use, and art, especially encouraging interdisciplinary research spanning these themes.For its inaugural year, TEI'07 is held in concert with the 14th Annual Mardi Gras conference at Louisiana State University in Baton Rouge, Louisiana. Major sponsorship is provided by the LSU Center for Computation and Technology (CCT). The conference is in cooperation with ACM SIGGRAPH, with its proceedings to be archived in ACM's Digital Library.The Mardi Gras festival finds its roots some 5,000 years ago as a celebration of spring. In North America, the festival dates to French explorers' arrival at the mouth of the Mississippi River in 1699. Just south of New Orleans, where the river meets the sea, they named their landfall Point d'Mardi Gras, on occasion of the day.In this spirit of new life, discovery, cultural diversity, and celebration, each spring the Mardi Gras conference embraces a different theme of regional interest and relevance. This year, we have embraced tangible and embedded interaction, with aspirations of giving birth to a recurring annual gathering and celebration of research in this field.
Valls Miro, J, Taha, T, Wang, D, Dissanayake, G & Liu, D 1970, 'An efficient strategy for robot navigation in cluttered environments in the presence of dynamic obstacles', Proceedings of the 8th International Conference on Intelligent Technologies (InTech), International Conference on Intelligent Technologies, University of Technology, Sydney, Sydney, Australia, pp. 74-81.
van den Hoven, E & Mazalek, A 1970, 'Tangible Play: Research and Design for Tangible and Tabletop Games', 2007 INTERNATIONAL CONFERENCE ON INTELLIGENT USER INTERFACES, IUI'07, ACM, Honolulu, HI, USA, pp. 6-6.
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This workshop addresses questions related to the areas of tangible interaction, game design and emerging technologies for tangible and tabletop games. We bring together researchers and practitioners from diverse fields related to these topics, such as HCI, computer science, interaction design and game design. We seek collaborative ways to move forward the field of tangible and tabletop games.
van den Hoven, E, Frens, J, Aliakseyeu, D, Martens, J-B, Overbeeke, K & Peters, P 1970, 'Design research & tangible interaction', Proceedings of the 1st international conference on Tangible and embedded interaction, TEI07: Tangible and Embedded Interaction 2007, ACM, Baton Rouge, USA, pp. 109-116.
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The research on Tangible Interaction (TI) has been inspired by many different disciplines, including psychology, sociology, engineering and human-computer interaction (HCI). Now that the field is getting more mature, in the sense that basic technologies and interaction paradigms have been explored, we observe a growing potential for a more design-oriented research approach. We suggest that there are several arguments for this proposed broadening of the TI-perspective: 1) the need for designing products within contexts-of-use that are much more challenging and diverse than the task-oriented desktop (or tabletop) systems that mostly inspire us today, 2) the interest to also design TI starting from existing physical activities instead of only as add-ons to digital applications, 3) the need for iterative design and evaluation of prototypes in order to develop applications that are grounded within daily practice over prolonged periods of time, and 4) the need to extend ease of use to more hedonic aspects of interaction such as fun and engagement
VAN, L-D, LIN, C-T & YU, Y-C 1970, 'VLSI Architecture for the Low-Computation Cycle and Power-Efficient Recursive DFT/IDFT Design', IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 5th IEEE International Symposium on Signal Processing and Information Technology, Institute of Electronics, Information and Communications Engineers (IEICE), Athens, GREECE, pp. 1644-1652.
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Vellaisamy, K & Li, J 1970, 'Multidimensional Decision Support Indicator (mDSI) for Time Series Stock Trend Prediction', ADVANCES IN KNOWLEDGE DISCOVERY AND DATA MINING, PROCEEDINGS, 11th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Springer Berlin Heidelberg, Nanjing, PEOPLES R CHINA, pp. 841-848.
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Vidal-Calleja, T, Bryson, M, Sukkarieh, S, Sanfeliu, A & Andrade-Cetto, J 1970, 'On the Observability of Bearing-only SLAM', Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007 IEEE International Conference on Robotics and Automation, IEEE, Rome, ITALY, pp. 4114-4119.
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In this paper we present an observability analysis for a mobile robot performing SLAM with a single monocular camera. The aim is to get a better understanding of the well known intuitive behavior of these systems, such as the need for triangulation to fe
Vidal-Calleja, T, Sanfeliu, A & Andrade-Cetto, J 1970, 'GUIDING AND LOCALISING IN REAL-TIME A MOBILE ROBOT WITH A MONOCULAR CAMERA IN NON-FLAT TERRAINS', IFAC Proceedings Volumes, Elsevier BV, pp. 560-565.
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In this paper we present a real-time active motion strategy for a mobile robot navigating in a non-flat terrain and its 3D constrained motion model. The aim is to control the robot with measurements from only one camera that autonomously builds a visual feature map while at the same time optimises its localisation within this map. The technique chooses the most appropriate commands maximising the expected information gain between prior states and measurements, while performing 6DOF bearing-only SLAM at real-time. The constrained 3D motion model presented here is used to infer the position of the vehicle in order to evaluate the mutual information for all possible actions at the same time. To validate the approach, not only simulations over uneven terrain have been performed, but also experimental results are shown for the technique being tested with a synchro-drive mobile robot platform with a wide-angle camera.
Voinov, A, Cox, WE & Cardwell, HE 1970, 'Pilot Collaborative Modeling Study for Regulatory Issues on the James River', World Environmental and Water Resources Congress 2007, World Environmental and Water Resources Congress 2007, American Society of Civil Engineers.
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Whereas other shared vision planning studies have typically addressed planning issues for reservoir re-operation issues (e.g. Lake Ontario Study, Mississippi Headwaters Reservoir Operations Plan Evaluation Study, ACT-ACF, etc.), there is also a need for the Corps to work with stakeholders to develop a "shared vision" for water management as it performs it's regulatory role under section 404 of the Clean Water Act. Likewise the state of Virginia recognizes the critical role of public involvement in state and local water planning. Therefore, the USEPA, the State of Virginia, and the Corps' Norfolk District regulators are helping guide a pilot Shared Vision Planning in the James River study to identify and describe the water resources management challenges facing growing municipalities in the James basin and to identify strategies for