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Faculty of Engineering and Information Sciences - Papers: Part A

Evaluation

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Full-Text Articles in Social and Behavioral Sciences

Thermal Comfort Evaluation Of A Mixed-Mode Ventilated Office Building With Advanced Natural Ventilation And Underfloor Air Distribution Systems, Xiang Deng, Georgios Kokogiannakis, Zhenjun Ma, Paul Cooper Jan 2017

Thermal Comfort Evaluation Of A Mixed-Mode Ventilated Office Building With Advanced Natural Ventilation And Underfloor Air Distribution Systems, Xiang Deng, Georgios Kokogiannakis, Zhenjun Ma, Paul Cooper

Faculty of Engineering and Information Sciences - Papers: Part A

This study uses field monitoring and post occupancy evaluation (POE) surveys to investigate the indoor thermal comfort of an office building that is located in subtropical zone. The building is special as it combines advanced natural ventilation (ANV) strategies and underfloor air distribution (UFAD) systems. A comparison between a static thermal comfort model and a dynamic thermal comfort model is also conducted. The results show that the thermal comfort conditions in the case study building are satisfactory in summer while in winter there is evidence of thermal discomfort. For the case study building, the static thermal comfort model gives outputs …


A Framework To Assess Newmark-Type Simplified Methods For Evaluation Of Earthquake-Induced Deformation Of Embankments, Mojtaba E. Kan, Hossein Taiebat, Mahdi Taiebat Jan 2017

A Framework To Assess Newmark-Type Simplified Methods For Evaluation Of Earthquake-Induced Deformation Of Embankments, Mojtaba E. Kan, Hossein Taiebat, Mahdi Taiebat

Faculty of Engineering and Information Sciences - Papers: Part A

The simplified procedures for evaluation of the earthquake induced displacement in earth and rockfill dams are widely used in practice. These methods are simple, inexpensive, and substantially less time consuming as compared to the complicated stress-deformation approaches. They are especially recommended to be used as a screening tool, to identify embankments with marginal factor of safety, assuming that these methods always give conservative estimates of settlements. However recent studies show that application of these methods may not be conservative in some cases, especially when the tuning ratio of a dam is within a certain range. In this paper the fundamental …


Development And Performance Evaluation Of A Liquid Desiccant Air Conditioning System With Hybrid Electrodialysis And Thermal Regeneration, Yi Guo, Zhenjun Ma, Ali Hussein Al-Jubainawi, Paul Cooper, Long D. Nghiem Jan 2016

Development And Performance Evaluation Of A Liquid Desiccant Air Conditioning System With Hybrid Electrodialysis And Thermal Regeneration, Yi Guo, Zhenjun Ma, Ali Hussein Al-Jubainawi, Paul Cooper, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

Liquid desiccant air conditioning (LDAC) systems have gained increasing attention due to the improved energy performance and reduced environmental impacts. This paper presents an LDAC system using electrodialysis (ED) as well as low grade heat generated from a hybrid photovoltaic thermal and evacuated tube (PVT-ET) collector for liquid desiccant regeneration. As ED regenerator is a key component in the proposed system, a modified mathematical model is used to simulate the mass transfer of the ED stack. The performance of the model was validated using the experimental data generated based on a lab-scale experimental setup. It is shown that the model …


Biomethane Potential Evaluation Of Co-Digestion Of Sewage Sludge And Organic Wastes, Richard Wickham, Brendan Galway, Heriberto A. Bustamante, Long D. Nghiem Jan 2016

Biomethane Potential Evaluation Of Co-Digestion Of Sewage Sludge And Organic Wastes, Richard Wickham, Brendan Galway, Heriberto A. Bustamante, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

Co-digestion of organic rich wastes and wastewater sludge to enhance biogas production has become an attractive economic possibility for water utilities. The suitability of the organic rich waste depends on its ability to produce biogas as well as its influence on the overall anaerobic digestion process. Biomethane potential evaluation was conducted to screen seven organic wastes and dehydrated algae. All co-substrates increased the bio-methane yield by three to six times compared with conventional anaerobic digestion of sewage sludge. Maximum co-digestion ratios were identifiable for most solid co-substrates including algae (6% wt/wt), undiluted food waste (5% wt/wt), bakery waste (5% wt/wt), …


An Evaluation Of The Dynamics Of Diluted Neural Network, Lijuan Wang, Jun Shen, Qingguo Zhou, Zhihao Shang, Huaming Chen, Hong Zhao Jan 2016

An Evaluation Of The Dynamics Of Diluted Neural Network, Lijuan Wang, Jun Shen, Qingguo Zhou, Zhihao Shang, Huaming Chen, Hong Zhao

Faculty of Engineering and Information Sciences - Papers: Part A

The Monte Carlo adaptation rule has been proposed to design asymmetric neural network. By adjusting the degree of the symmetry of the networks designed by this rule, the spurious memories or unwanted attractors of the networks can be suppressed completely. We have extended this rule to design full-connected neural networks and diluted neural networks. Comparing the dynamics of these two neural networks, the simulation results indicated that the performance of diluted neural network was poorer than the performance of full-connected neural network. As to this point, further research is needed. In this paper, we use the annealed dilution method to …


Fibre Bragg Grating Sensing Technology For The Evaluation Of Physical Properties Of Dental Resin Composites, Ginu Rajan, Paul Shouha, Ayman Ellakwa, Jiangtao Xi, Gangadhara B. Prusty Jan 2016

Fibre Bragg Grating Sensing Technology For The Evaluation Of Physical Properties Of Dental Resin Composites, Ginu Rajan, Paul Shouha, Ayman Ellakwa, Jiangtao Xi, Gangadhara B. Prusty

Faculty of Engineering and Information Sciences - Papers: Part A

The characterization of the physical properties of dental resin composites is fraught with difficulties relating to significant intra and inter test parameter variabilities and is relatively time consuming and expensive. The main aim of this study was to evaluate whether optical fibre Brag grating (FBG) sensing system may become a viable tool to study dental material characteristics. Of particular focus was the potential for the system to demonstrate a multi parameter all-in-one feature. A miniature FBG was embedded in six different dental resin composites and employed as a sensor to evaluate linear polymerization shrinkage, thermal expansion and water sorption. This …


Incorporating Environmental Evaluation And Thermal Properties Of Concrete Mix Designs, Mehdi Robati, Timothy J. Mccarthy, Georgios Kokogiannakis Jan 2016

Incorporating Environmental Evaluation And Thermal Properties Of Concrete Mix Designs, Mehdi Robati, Timothy J. Mccarthy, Georgios Kokogiannakis

Faculty of Engineering and Information Sciences - Papers: Part A

One of the main challenges in sustainable design of buildings is to improve the energy efficiency of the building during its lifetime along with reducing the environmental impact of the design. Recent advances in concrete technology offer lower embodied emission through the application of supplementary cementitious materials and recycled aggregates. There are also improvements to thermal properties with the application of admixtures. However, the relationships between the environmental impact (Cradle to Gate) and thermal performance of concrete mix designs have not been researched adequately. The Green House Gas (GHG) emissions associated with each individual concrete component and its production need …


Evaluation Methodology And Implementation For Natural Ventilation Control Strategies, Massimo Fiorentini, Georgios Kokogiannakis, Warwick Jackson, Zhenjun Ma, Paul Cooper Jan 2016

Evaluation Methodology And Implementation For Natural Ventilation Control Strategies, Massimo Fiorentini, Georgios Kokogiannakis, Warwick Jackson, Zhenjun Ma, Paul Cooper

Faculty of Engineering and Information Sciences - Papers: Part A

This paper describes a methodology for evaluating the effectiveness of various control strategies for the operation of window actuators to control the indoor climate, and their implementation in a full scale case study building. In this study, the effectiveness of a control strategy is considered in terms of the capability of the controller for maintaining the indoor thermal comfort in a prescribed variable range, and its effect on the minimisation of the operational energy consumption of the building, due to a lower thermal energy demand to be met by the heating and cooling system. A model of the case study …


Thermal Performance Evaluation And Optimal Design Of Buildings With Integrated Air-Based Photovoltaic Thermal Collectors And Phase Change Materials Using The Hooke-Jeeves Pattern Search Method, Wenye Lin, Zhenjun Ma, Paul Cooper Jan 2016

Thermal Performance Evaluation And Optimal Design Of Buildings With Integrated Air-Based Photovoltaic Thermal Collectors And Phase Change Materials Using The Hooke-Jeeves Pattern Search Method, Wenye Lin, Zhenjun Ma, Paul Cooper

Faculty of Engineering and Information Sciences - Papers: Part A

Over the last several decades, many low energy technologies have been developed and deployed to reduce building energy consumption. Among various solutions, solar photovoltaic thermal (PVT) collectors and phase change materials (PCMs) are among the most promising methods receiving increasing attention. This paper presents a thermal performance evaluation and optimal design of buildings integrated with air-based solar PVT collectors and PCMs embedded in the building envelope by using The Hooke-Jeeves pattern search method. The Hooke-Jeeves generalized pattern search is used to search for optimal solutions of the optimization problem. The variables optimized include the PVT air flow rate, additional wall …


Evaluation Of A Partial Ring Design For The Insert Spect/Mri System, Kell Erlandsson, Debora Slavado, Alexandre B. Bousse, Brian F. Hutton Jan 2015

Evaluation Of A Partial Ring Design For The Insert Spect/Mri System, Kell Erlandsson, Debora Slavado, Alexandre B. Bousse, Brian F. Hutton

Faculty of Engineering and Information Sciences - Papers: Part A

The aim of the INSERT project is to develop a SPECT insert for a commercial MRI system, for performing simultaneous SPECT/MRI brain studies in humans. We have previously investigated various design options for the detector system, based on a complete ring of detectors. We are now considering a partial ring, due to space limitations. We have investigated the degradation in image quality with a partial ring as compared to a full ring, and the possibility of addressing the limitations by utilising MRI data during reconstruction. Noise-free data were generated by forward-projecting a cylindrical phantom with spherical inserts for a full-ring …


Comparative Evaluation Of Modern Dosimetry Techniques Near Low- And High-Density Heterogeneities, Eyad A. Alhakeem, Sami Alshaikh, Anatoly B. Rosenfeld, Sergei F. Zavgorodni Jan 2015

Comparative Evaluation Of Modern Dosimetry Techniques Near Low- And High-Density Heterogeneities, Eyad A. Alhakeem, Sami Alshaikh, Anatoly B. Rosenfeld, Sergei F. Zavgorodni

Faculty of Engineering and Information Sciences - Papers: Part A

The purpose of this study is to compare performance of several dosimetric methods in heterogeneous phantoms irradiated by 6 and 18 MV beams. Monte Carlo (MC) calculations were used, along with two versions of Acuros XB, anisotropic analytical algorithm (AAA), EBT2 film, and MOSkin dosimeters. Percent depth doses (PDD) were calculated and measured in three heterogeneous phantoms. The first two phantoms were a 30 x 30 x 30 cm3 solid-water slab that had an air-gap of 20x 2.5 x 2.35 cm3. The third phantom consisted of 30 x 30 x 5 cm3 solid water slabs, two 30 x 30 x …


Evaluation Of 3d Gamma Index Calculation Implemented In Two Commercial Dosimetry Systems, Aitang Xing, Sankar Arumugam, Shrikant Deshpande, Armia George, Philip J. Vial, Lois C. Holloway, Gary Goozee Jan 2015

Evaluation Of 3d Gamma Index Calculation Implemented In Two Commercial Dosimetry Systems, Aitang Xing, Sankar Arumugam, Shrikant Deshpande, Armia George, Philip J. Vial, Lois C. Holloway, Gary Goozee

Faculty of Engineering and Information Sciences - Papers: Part A

3D Gamma index is one of the metrics which have been widely used for clinical routine patient specific quality assurance for IMRT, Tomotherapy and VMAT. The algorithms for calculating the 3D Gamma index using global and local methods implemented in two software tools: PTW-VeriSoft (R) r as a part of OCTIVIUS 4D dosimeter systems and 3DVH (TM) from Sun Nuclear were assessed. The Gamma index calculated by the two systems was compared with manual calculated for one data set. The Gamma pass rate calculated by the two systems was compared using 3%/3mm, 2%/2mm, 3%/2mm and 2%/3mm for two additional data …


Evaluation Of The Ability Of A 2d Ionisation Chamber Array And An Epid To Detect Systematic Delivery Errors In Imrt Plans, Omemh Bawazeer, Alison Gray, Sankar Arumugam, Philip J. Vial, David Thwaites, Joseph Descallar, Lois C. Holloway Jan 2014

Evaluation Of The Ability Of A 2d Ionisation Chamber Array And An Epid To Detect Systematic Delivery Errors In Imrt Plans, Omemh Bawazeer, Alison Gray, Sankar Arumugam, Philip J. Vial, David Thwaites, Joseph Descallar, Lois C. Holloway

Faculty of Engineering and Information Sciences - Papers: Part A

Two clinical intensity modulated radiotherapy plans were selected. Eleven plan variations were created with systematic errors introduced: Multi-Leaf Collimator (MLC) positional errors with all leaf pairs shifted in the same or the opposite direction, and collimator rotation offsets. Plans were measured using an Electronic Portal Imaging Device (EPID) and an ionisation chamber array. The plans were evaluated using gamma analysis with different criteria. The gamma pass rates remained around 95% or higher for most cases with MLC positional errors of 1 mm and 2 mm with 3%/3mm criteria. The ability of both devices to detect delivery errors was similar.


Lll For Ideal Lattices Re-Evaluation Of The Security Of Gentry-Halevi's Fhe Scheme, Thomas Plantard, Willy Susilo, Zhenfei Zhang Jan 2014

Lll For Ideal Lattices Re-Evaluation Of The Security Of Gentry-Halevi's Fhe Scheme, Thomas Plantard, Willy Susilo, Zhenfei Zhang

Faculty of Engineering and Information Sciences - Papers: Part A

The LLL algorithm, named after its inventors, Lenstra, Lenstra and Lovász, is one of themost popular lattice reduction algorithms in the literature. In this paper, we propose the first variant of LLL algorithm that is dedicated for ideal lattices, namely, the iLLL algorithm. Our iLLL algorithm takes advantage of the fact that within LLL procedures, previously reduced vectors can be re-used for further reductions. Using this method, we prove that the iLLL is at least as fast as the LLL algorithm, and it outputs a basis with the same quality. We also provide a heuristic approach that accelerates the re-use …


Spline-Shape Modification For Frp-Confined Concrete Columns: Theory And Evaluation, Muhammad N. S Hadi, Xu Lei Jan 2014

Spline-Shape Modification For Frp-Confined Concrete Columns: Theory And Evaluation, Muhammad N. S Hadi, Xu Lei

Faculty of Engineering and Information Sciences - Papers: Part A

The confinement efficiency for FRP-confined square concrete columns is relatively low compared to circular columns due to a large area of ineffectively-confined concrete and stress concentration at sharp corners. Shape modification of square concrete columns has been proposed but modifying the shape of cross-section from a square to a circle results in a significant increase in crosssectional area and self-weight of the columns, which raises new issues and is not practical when the space in the structure is limited. To address the abovementioned issues, a spline-shaped cross-section is proposed in this study as a target shape for shape modification. A …


Surface Treatment Evaluation Of Induction Hardened And Tempered 1045 Steel, Alain Kusmoko, Druce P. Dunne, Rosfian Dahar, Huijun Li Jan 2014

Surface Treatment Evaluation Of Induction Hardened And Tempered 1045 Steel, Alain Kusmoko, Druce P. Dunne, Rosfian Dahar, Huijun Li

Faculty of Engineering and Information Sciences - Papers: Part A

Rod-shaped samples of SAE-AISI grade 1045 steel with a ferrite and pearlite structure in the as received condition were subjected to induction hardening to increase the hardness of the surface layer. The heat treatment process was carried out using induction heating with five different peak temperatures: 8000C, 9000C, 10000C, 11000C and 1200 0C for 2 s, before water quenching. The chemical composition and the microstructures of these samples were characterized by spectrometry and optical microscopy. The microhardness of the surface of each samples was measured and preliminary tensile testing was conducted. The results showed the formation of a significant hardened …


Design And Evaluation Of A Linear Damper Working With Mr Shear Thickening Fluids, Tongfei Tian, Weihua Li, Masami Nakano Jan 2013

Design And Evaluation Of A Linear Damper Working With Mr Shear Thickening Fluids, Tongfei Tian, Weihua Li, Masami Nakano

Faculty of Engineering and Information Sciences - Papers: Part A

Magnetorheological (MR) materials and shear thickening fluids are both smart material and their combination could offer both MR and ST effects. This study looks at the properties and behaviour of magnetorheological shear thickening fluid (MRSTF) in particular whilst applied as a semi-active energy absorber. A device with two forms of varying vibration control has been created and measured. The result shows that this MRSTF filled damper showed both MR and properties.


Wear Mode Map Evaluation Of Induction Hardened 4140 And Carburised 8617h Steels On 1040 Steel, Alain Kusmoko, Alan Crosky Jan 2013

Wear Mode Map Evaluation Of Induction Hardened 4140 And Carburised 8617h Steels On 1040 Steel, Alain Kusmoko, Alan Crosky

Faculty of Engineering and Information Sciences - Papers: Part A

This study was undertaken to evaluate the likely effect on the wear rate of changing the pinion material in a rack and pinion steering box from carburised SAE-AISI grade 8617 H steel to induction hardened SAE-AISI grade 4140 steel. Accordingly, pin-on-disc unlubricated wear tests were conducted using carburised 8617 H pins and through hardened 4140 pins. The surface hardness of the pins was approximately 60 HRC for both materials. The discs were made of SAE-AISI grade 1040 steel through hardened to a hardness of 45 HRC. The tests were conducted using a load of 2.2 kg and a rotational speed …


Performance Uniformity Evaluation Of Two Sensl's Sipm Modules, Lachlan Chartier, Yujin Qi, Marco Petasecca, Peter Ihnat, Michael L. F Lerch, Anatoly B. Rosenfeld, Benjamin Tsui Jan 2013

Performance Uniformity Evaluation Of Two Sensl's Sipm Modules, Lachlan Chartier, Yujin Qi, Marco Petasecca, Peter Ihnat, Michael L. F Lerch, Anatoly B. Rosenfeld, Benjamin Tsui

Faculty of Engineering and Information Sciences - Papers: Part A

Minimization of the channel-to-channel variation of silicon photomultiplier (SiPM) array is of great importance in achieving high performance for SiPM based imaging detectors. The purpose of this study was to characterize the operating parameters of a large-area SiPM based detector module with 12x12 pixel array (SensL's ArraySM-4P9) in order to develop an optimal multiplexing readout for high-resolution SPECT imaging. Two versions of SensL's SiPM arrays were investigated in this study. The previous ArraySL-4 version has an array of 4x4 pixels with 3x3mm2 pixel size and the new AarraySM-4p9 version consists of a 3x3 matrix of the 4x4 pixels SiPM modules. …


An Evaluation Of Thermal Earth Observation For Characterizing Urban Heatwave Event Dynamics Using The Urban Heat Island Intensity Metric, Tomas Holderness, Stuart Barr, Richard Dawson, Jim Hall Jan 2013

An Evaluation Of Thermal Earth Observation For Characterizing Urban Heatwave Event Dynamics Using The Urban Heat Island Intensity Metric, Tomas Holderness, Stuart Barr, Richard Dawson, Jim Hall

Faculty of Engineering and Information Sciences - Papers: Part A

Urban areas have a high sensitivity to extreme temperature events such as heatwaves due to increased absorption and re-radiation of thermal energy from man-made materials as well as anthropogenic heat outputs. Variations in urban form, land use, and surface cover result in spatial variability in temperatures across urban areas, meaning that exposure to extreme events is variable at the sub-city scale. Such variability must be quantified in order to better understand urban temperature interactions and identify areas with the greatest potential exposure to extreme heatwave events. Earth observed data offer a spatially complete and homogenous data source to supplement observations …


Performance Evaluation Of Cooperative Communications For Stfc Mb-Ofdm Uwb, Zixuan Lin, Le Chung Tran, Farzad Safaei Jan 2013

Performance Evaluation Of Cooperative Communications For Stfc Mb-Ofdm Uwb, Zixuan Lin, Le Chung Tran, Farzad Safaei

Faculty of Engineering and Information Sciences - Papers: Part A

Recently, the combination of cooperative communication, Space-Time-Frequency Codes (STFCs) and Multiband OFDM Ultra-Wideband (MB-OFDM UWB) has been proposed to improve the data rate, system capacity and reliability. This paper provides insightful performance evaluation for our previous proposed cooperative communication schemes for MBOFDM UWB systems. In particular, this paper shows that the usefulness of cooperative communication schemes is decided by the mutual relation between the signal-to-noise ratio (SNR) of the inter-node links, referred to as inter-node SNR, and that of the uplinks, which is referred to as uplink SNR. For a certain uplink SNR value, cooperative communication becomes useful when the …


Performance Evaluation Of Bioethanol Production Through Continuous Fermentation With A Settling Unit, Mark I. Nelson, Norhayati Hamzah Jan 2013

Performance Evaluation Of Bioethanol Production Through Continuous Fermentation With A Settling Unit, Mark I. Nelson, Norhayati Hamzah

Faculty of Engineering and Information Sciences - Papers: Part A

This paper analyses a model for the production of bioethanol that has been calibrated against laboratory data by previous researchers. The authors investigate the improvement in productivity that can be obtained when a centrifuge is used to recycle cells that would otherwise leave the reactor system in the efficient stream. The authors compare the performance of a double reactor cascade, possible employing a settling unit, against that of a single reactor. For the former case, this paper considers the reactor configuration in which the settling unit recycles from the effluent stream of a reactor back in the influent of the …


Description And Comparison Of Documentation Of Nursing Assessment Between Paper-Based And Electronic Systems In Australian Aged Care Homes, Ning Wang, Ping Yu, David Hailey Jan 2013

Description And Comparison Of Documentation Of Nursing Assessment Between Paper-Based And Electronic Systems In Australian Aged Care Homes, Ning Wang, Ping Yu, David Hailey

Faculty of Engineering and Information Sciences - Papers: Part A

Purpose: To describe nursing assessment documentation practices in aged care organizations and to evaluate the quality of electronic versus paper-based documentation of nursing assessment. Methods: This was a retrospective nursing documentation audit study. Study samples were 2299 paper-based and 6997 electronic resident assessment forms contained in 159 paper-based and 249 electronic resident nursing records, respectively, from three aged care organizations. The practice of nursing assessment documentation in participating aged care homes was described. Three attributes of quality of nursing assessment documentation were evaluated: format and structure, process, and content by seven measures: quantity, completeness, timeliness comprehensiveness, frequencies of documentation specific …


Evaluation Of Damping Modification Factors For Seismic Response Spectra, M. Neaz Sheikh, Hing-Ho Tsang, Saman Yaghmaei-Sabegh, P. Anbazhagan Jan 2013

Evaluation Of Damping Modification Factors For Seismic Response Spectra, M. Neaz Sheikh, Hing-Ho Tsang, Saman Yaghmaei-Sabegh, P. Anbazhagan

Faculty of Engineering and Information Sciences - Papers: Part A

Seismic response spectra with structural damping ratio other than nominal 5% (of critical damping) are essential for the design and evaluation of structures in performance-based seismic engineering. Such response spectra are also essential for the design and evaluation of structures with seismic isolation and energy dissipation systems. A number of formulations for damping modification factors (DMF) have been proposed in the literature for scaling the 5% damped response spectra. Dependence of the DMF on several ground motion parameters has also been identified. Few seismic design codes have already incorporated simplified DMF based on these studies. This paper critically reviews the …


Capacity Deferral Credit Evaluation Of Renewable Distributed Generation, M A. Abdullah, K M. Muttaqi, A P. Agalgaonkar, D Sutanto Jan 2013

Capacity Deferral Credit Evaluation Of Renewable Distributed Generation, M A. Abdullah, K M. Muttaqi, A P. Agalgaonkar, D Sutanto

Faculty of Engineering and Information Sciences - Papers: Part A

Renewable distributed generation (DG) units can aid in distribution network planning and can be utilized in distribution expansion planning. In order to support the development of distributed renewable resources in the distribution network and to make these resources competitive in the energy market, a well justified credit scheme needs to be devised. In this paper, an analytical method has been developed to estimate the capacity deferral credit of renewable DGs that can be claimed from distribution system operators (DSOs) due to the deferral of conventional distribution network expansion options. The distribution network adequacy has been assessed using the combined multistate …


Effects Of Cultural Cognitive Styles On Users Evaluation Of Website Complexity, Tingru Cui, Xinwei Wang, Hock Hai Teo Jan 2012

Effects Of Cultural Cognitive Styles On Users Evaluation Of Website Complexity, Tingru Cui, Xinwei Wang, Hock Hai Teo

Faculty of Engineering and Information Sciences - Papers: Part A

The internationalization of websites requires compelling navigation experience for users from diverse cultures. This research investigates the effects of cultural cognitive styles on user perception of website complexity and the subsequent influence on user satisfaction towards the website. More specifically, the website complexity is examined along three dimensions: component, coordinative, and dynamic. Laboratory experiments involving participants from China and United States were used to test the hypotheses. The results showed that the effect of objective complexity on perceived complexity is contingent on cultural cognitive styles. People with holistic and analytic cultural cognitive styles display different perceptions of website complexity. This …


A Methodology For Bridge Condition Evaluation, Maria Rashidi, Peter Gibson Jan 2012

A Methodology For Bridge Condition Evaluation, Maria Rashidi, Peter Gibson

Faculty of Engineering and Information Sciences - Papers: Part A

Due to the substantial role of bridges in transportation networks and in accordance with the limited funding for bridge management, remediation strategies have to be prioritised. A conservative bridge assessment will result in unnecessary actions, such as costly bridge strengthening or repairs. On the other hand, any bridge maintenance negligence and delayed actions may lead to heavy future costs or degraded assets. The accuracy of decisions developed by any manager or bridge engineer relies on the accuracy of the bridge condition assessment which emanates from visual inspection. Many bridge rating systems are based on a very subjective procedure and are …


Theme-Based Comprehensive Evaluation In New Product Development Using Fuzzy Hierarchical Criteria Group Decision-Making Method, Jie Lu, Jun Ma, Guangquan Zhang, Yijun Zhu, Xianyi Zeng, Ludovic Koehl Jan 2011

Theme-Based Comprehensive Evaluation In New Product Development Using Fuzzy Hierarchical Criteria Group Decision-Making Method, Jie Lu, Jun Ma, Guangquan Zhang, Yijun Zhu, Xianyi Zeng, Ludovic Koehl

Faculty of Engineering and Information Sciences - Papers: Part A

One of the features of the digital ecosystem is the integration of human cognition and socio-economic themes into the process of new product development (NPD). In a socio-economic theme-based NPD, ranking a set of product prototypes that have been designed always requires the participation of multiple evaluators and consideration of multiple evaluation criteria. Using the well-being theme-based garment NPD as a background, this paper first presents a fuzzy hierarchical criteria group decision-making (FHCGDM) method which can effectively calculate final ranking results through fusing all assessment data from human beings and machines. It then presents a garment NPD comprehensive evaluation model …


Compressive Evaluation In Human Motion Tracking, Yifan Lu, Lei Wang, Richard Hartley, Hongdong Li, Dan Xu Jan 2010

Compressive Evaluation In Human Motion Tracking, Yifan Lu, Lei Wang, Richard Hartley, Hongdong Li, Dan Xu

Faculty of Engineering and Information Sciences - Papers: Part A

The powerful theory of compressive sensing enables an efficient way to recover sparse or compressible signals from non-adaptive, sub-Nyquist-rate linear measurements. In particular, it has been shown that random projections can well approximate an isometry, provided that the number of linear measurements is no less than twice of the sparsity level of the signal. Inspired by these, we propose a compressive anneal particle filter to exploit sparsity existing in image-based human motion tracking. Instead of performing full signal recovery, we evaluate the observation likelihood directly in the compressive domain of the observed images. Moreover, we introduce a progressive multilevel wavelet …


Evaluation Of Dna Probes For Detection Of Shiga-Like-Toxin- Producing Escherichia Coli In Food And Calf Fecal Samples, Mansour Samadpour, John Liston, Jerry E. Ongerth, Phillip I. Tarr Jan 1990

Evaluation Of Dna Probes For Detection Of Shiga-Like-Toxin- Producing Escherichia Coli In Food And Calf Fecal Samples, Mansour Samadpour, John Liston, Jerry E. Ongerth, Phillip I. Tarr

Faculty of Engineering and Information Sciences - Papers: Part A

The use of DNA probes for Shiga-like toxin I (SLT-I) and SLT-II for detection of SLT-producing Escherichia coli (SLTEC) in foods and calf fecal samples was evaluated. Enrichment cultures were prepared from food or fecal samples. Colonies formed by plating of enrichment cultures were probed for SLTEC by colony hybridization. Alternatively, enrichment cultures were analyzed for SLTEC presence by dot blot. The lowest detected concentration of SLTEC in sample homogenates inoculated with E. coli 0157:H7 corresponded to 1.3 CFU/g of sample. Of the 44 food samples and 28 fecal samples from dairy calves tested by the colony hybridization method, 4 …