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Articles 241 - 270 of 14367

Full-Text Articles in Social and Behavioral Sciences

Net Section Tension Strength Of Bolted Connections In Ultra-High Strength Sheet Steel During And After Fire, Yong Cho, Lip H. Teh, Ben Young, Aziz Ahmed Jan 2020

Net Section Tension Strength Of Bolted Connections In Ultra-High Strength Sheet Steel During And After Fire, Yong Cho, Lip H. Teh, Ben Young, Aziz Ahmed

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 This paper investigates the net section tension strength of bolted connections in ultra-high strength sheet steel (yield stress greater than 1000 MPa) under various fire scenarios through laboratory testing. The specimens are tested at room (ambient) temperature and elevated temperatures up to 700 °C, and are subjected to air or water cooling from temperatures as high as 1000 °C. The degradations of the tensile strength at elevated temperatures are much more severe than design code predictions. Substantial recovery of the tensile strength is feasible using water cooling if the steel has been exposed to 1000 °C, by almost …

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Robustness In Coupling Between Iron And Rare Earth Spins In Rare Earth Orthoferrites, Mohanad Hazim, Josip Horvat, Zhenxiang Cheng, Shixun Cao Jan 2020

Robustness In Coupling Between Iron And Rare Earth Spins In Rare Earth Orthoferrites, Mohanad Hazim, Josip Horvat, Zhenxiang Cheng, Shixun Cao

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Trans Tech Publications Ltd, Switzerland. We report on very accurate magnetic measurements on large rare earth orthoferrites single crystals of ErFeO3 and NdFeO3. Our results show that the interaction between rare earth and iron spin system does not change during the spin-flip process. This implies that the coupling between the iron and rare earth spin systems is robust enough to withstand the effects of spin flipping against the magnetic anisotropy energy. This is despite rare eath ions, polarized by the ordered iron ions, being in partly metastable state and their magnetic moment decays with time.

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Hot Deformation Behaviour And Interfacial Characteristics Of Bimetal Composite At Elevated Temperatures, Zhou Li, Jingwei Zhao, Fanghui Jia, Yao Lu, Xiaojun Liang, Xiangqian Yuan, Sihai Jiao, Cunlong Zhou, Zhengyi Jiang Jan 2020

Hot Deformation Behaviour And Interfacial Characteristics Of Bimetal Composite At Elevated Temperatures, Zhou Li, Jingwei Zhao, Fanghui Jia, Yao Lu, Xiaojun Liang, Xiangqian Yuan, Sihai Jiao, Cunlong Zhou, Zhengyi Jiang

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Elsevier Ltd The hot deformation behaviour and interfacial microstructure evolution have a critical influence on the hot workability and mechanical properties of bimetal composite. This study investigated the flow performance and interfacial characteristics of 2205 duplex stainless steel/AH36 low carbon steel bimetal composite (2205/AH36 BC) at elevated temperatures, based on the hot tensile tests over the temperature range of 950–1250 °C and strain rate range of 0.01–1 s−1. The results indicate that the deformation behaviour of 2205/AH36 BC is similar to that of AH36 low carbon steel at high temperatures, and the softening mechanism of bimetal composite significantly …

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Hydrothermal Performance Of Nanofluid Flow In A Sinusoidal Double Layer Microchannel In Order To Geometric Optimization, Wei He, Ramin Mashayekhi, Davood Toghraie, Omid Akbari, Zhixiong Li, Iskander Tlili Jan 2020

Hydrothermal Performance Of Nanofluid Flow In A Sinusoidal Double Layer Microchannel In Order To Geometric Optimization, Wei He, Ramin Mashayekhi, Davood Toghraie, Omid Akbari, Zhixiong Li, Iskander Tlili

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Elsevier Ltd In this investigation, laminar flow with a hybrid nanofluid as a working fluid in a newly designed double layer microchannel with sinusoidal walls is investigated. The nanofluid is Al2O3-Cu/water hybrid nanofluid. Results indicate that changing the geometry of fluid route (wavelength of the sinusoidal wall), usage of nanofluid and increasing fluid velocity can alter Nusselt number, the maximum temperature distribution in the microchannel, Performance Evaluation Criterion and friction factor. The presence of sinusoidal wavelength across the entire microchannel can improve mixing between surface and fluid, and this mixing happens because of the slow flow of fluid …

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Unbalanced Hybrid Aoa/Rssi Localization For Simplified Wireless Sensor Networks, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Christian H. Ritz, Eryk Dutkiewicz, Son Lam Phung, Abdesselam Bouzerdoum, Daniel R. Franklin Jan 2020

Unbalanced Hybrid Aoa/Rssi Localization For Simplified Wireless Sensor Networks, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Christian H. Ritz, Eryk Dutkiewicz, Son Lam Phung, Abdesselam Bouzerdoum, Daniel R. Franklin

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 by the authors. Source positioning using hybrid angle-of-arrival (AOA) estimation and received signal strength indicator (RSSI) is attractive because no synchronization is required among unknown nodes and anchors. Conventionally, hybrid AOA/RSSI localization combines the same number of these measurements to estimate the agents’ locations. However, since AOA estimation requires anchors to be equipped with large antenna arrays and complicated signal processing, this conventional combination makes the wireless sensor network (WSN) complicated. This paper proposes an unbalanced integration of the two measurements, called 1AOA/nRSSI, to simplify the WSN. Instead of using many anchors with large antenna arrays, the proposed …

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Teaching Sample Survey Design—A Project Using A Virtual Population, Carole L. Birrell Jan 2020

Teaching Sample Survey Design—A Project Using A Virtual Population, Carole L. Birrell

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020, © 2020 The Author(s). Published with license by Taylor and Francis Group, LLC. Sample survey design is a topic usually taught to students undertaking a minor or major in statistics in the latter part of their bachelor’s degree. This article describes an assessment project that fosters active learning and helps to develop a set of essential skills for statistical practice. The project is completed in pairs and submitted in two parts. This allows feedback from the first part to be acted upon for the second part. Ideally, students would gain experience sampling from an actual population. However, the …

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The Design Of Early-Stage Plant Breeding Trials Using Genetic Relatedness, Brian R. Cullis, Alison B. Smith, Nicole A. Cocks, David G. Butler Jan 2020

The Design Of Early-Stage Plant Breeding Trials Using Genetic Relatedness, Brian R. Cullis, Alison B. Smith, Nicole A. Cocks, David G. Butler

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020, The Author(s). The use of appropriate statistical methods has a key role in improving the accuracy of selection decisions in a plant breeding program. This is particularly important in the early stages of testing in which selections are based on data from a limited number of field trials that include large numbers of breeding lines with minimal replication. The method of analysis currently recommended for early-stage trials in Australia involves a linear mixed model that includes genetic relatedness via ancestral information: non-genetic effects that reflect the experimental design and a residual model that accommodates spatial dependence. Such analyses …

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Coupled Modelling And Advanced Control For Smooth Operation Of A Grid Connected Linear Electric Generator Based Wave-To-Wire System, Safdar Rasool, Md Rabiul Islam, Kashem M. Muttaqi, Danny Sutanto Jan 2020

Coupled Modelling And Advanced Control For Smooth Operation Of A Grid Connected Linear Electric Generator Based Wave-To-Wire System, Safdar Rasool, Md Rabiul Islam, Kashem M. Muttaqi, Danny Sutanto

Faculty of Engineering and Information Sciences - Papers: Part B

The perpetual oscillations of ocean waves produce potential energy, which can be converted to electrical energy with the help of direct drive linear generators. The fluctuating generated power poses a major challenge when it is supplied to the power grid. In this paper, a supercapacitor provides the short-term energy storage to buffer and smooth out the power fluctuations. A new coupled model of a wave energy converter and a linear generator is proposed for its response characterization under varying system conditions. The developed model and an advanced control strategy is used to exhibit a smooth and stable operation of the …

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Power Loss And Thermal Impedance Modeling Of Multilevel Power Converter With Discontinuous Modulation, Md Mazharul Islam, Md. Ashib Rahman, Md Rabiul Islam Jan 2020

Power Loss And Thermal Impedance Modeling Of Multilevel Power Converter With Discontinuous Modulation, Md Mazharul Islam, Md. Ashib Rahman, Md Rabiul Islam

Faculty of Engineering and Information Sciences - Papers: Part B

The hard switching operation of the insulated gate bipolar transistor (IGBT)-based multilevel converters (MLCs) in the transformer less direct integration of renewable power plants produces a considerable amount of switching and conduction power loss. This eventually causes higher junction temperature and lower thermal stability. The third harmonic sixty-degree bus-clamped pulse width modulation (BCPWM) technique demonstrates reduced switching losses and better harmonic spectra. In this paper, an analytical model for calculating the average and the rms currents for the hard switching operation of IGBTs and antiparallel diodes (APDs) is proposed. Furthermore, to calculate the device turn-on and turn-off losses, a discrete …

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A New Algorithm For Displacement Measurement Using Self-Mixing Interferometry With Modulated Injection Current, Han Wang, Yuxi Ruan, Yanguang Yu, Qinghua Guo, Jiangtao Xi, Jun Tong Jan 2020

A New Algorithm For Displacement Measurement Using Self-Mixing Interferometry With Modulated Injection Current, Han Wang, Yuxi Ruan, Yanguang Yu, Qinghua Guo, Jiangtao Xi, Jun Tong

Faculty of Engineering and Information Sciences - Papers: Part B

Using self-mixing interferometry (SMI) with a periodical modulated injection current, high resolution displacement sensing can be achieved by retrieving the initial phase of an SMI signal at each modulation period. However, the existing initial-phase-based detection methods can only obtain a single point measurement of displacement within each single modulation period. Thus, they are only effective when the target is subject to slow movement, or the injection current is modulated by a signal of very high frequency, which are not practical in many applications. In this work, a new method is proposed to tackle the problem. Firstly, a reference signal is …

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A New Data Driven Long-Term Solar Yield Analysis Model Of Photovoltaic Power Plants, Biplob Ray, Rakibuzzaman Shah, Md Rabiul Islam, Syed Islam Jan 2020

A New Data Driven Long-Term Solar Yield Analysis Model Of Photovoltaic Power Plants, Biplob Ray, Rakibuzzaman Shah, Md Rabiul Islam, Syed Islam

Faculty of Engineering and Information Sciences - Papers: Part B

Historical data offers a wealth of knowledge to the users. However, often restrictively mammoth that the information cannot be fully extracted, synthesized, and analyzed efficiently for an application such as the forecasting of variable generator outputs. Moreover, the accuracy of the prediction method is vital. Therefore, a trade-off between accuracy and efficacy is required for the data-driven energy forecasting method. It has been identified that the hybrid approach may outperform the individual technique in minimizing the error while challenging to synthesize. A hybrid deep learning-based method is proposed for the output prediction of the solar photovoltaic systems (i.e. proposed PV …

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Biomechanics Of Table Tennis: A Systematic Scoping Review Of Playing Levels And Maneuvers, Duo Wong, Winson Lee, Wing-Kai Lam Jan 2020

Biomechanics Of Table Tennis: A Systematic Scoping Review Of Playing Levels And Maneuvers, Duo Wong, Winson Lee, Wing-Kai Lam

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 by the authors. This present study aims to review the available evidence on the biomechanics of table-tennis strokes. Specifically, it summarized current trends, categorized research foci, and biomechanical outcomes regarding various movement maneuvers and playing levels. Databases included wereWeb of Science, Cochrane Library, Scopus, and PubMed. Twenty-nine articles were identified meeting the inclusion criteria. Most of these articles revealed how executing different maneuvers changed the parameters related to body postures and lines of movement, which included racket face angle, trunk rotation, knee, and elbow joints. It was found that there was a lack of studies that investigated backspin …

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Outage Probability And Throughput Analyses In Full-Duplex Relaying Systems With Energy Transfer, Jiaman Li, Le Chung Tran, Farzad Safaei Jan 2020

Outage Probability And Throughput Analyses In Full-Duplex Relaying Systems With Energy Transfer, Jiaman Li, Le Chung Tran, Farzad Safaei

Faculty of Engineering and Information Sciences - Papers: Part B

In this article, we consider a dual-hop full-duplex (FD), amplify-and-forward, orthogonal frequency division multiplexing (OFDM) relaying network, where the relay operates based on a time-switching architecture to harvest energy from radio frequency signals. We use a polarization-enabled digital self-interference cancellation (PDC) scheme to cancel the self-interference signal at the relay in order to achieve FD communications. The paper provides a comprehensive analysis of the system performances in terms of outage probability and throughput over multipath Rayleigh fading channels. Furthermore, the optimal time split between the duration of energy harvesting and signal transmission to maximize the system throughput is numerically calculated. …

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Progress In Piezoelectric Material Based Oceanic Wave Energy Conversion Technology, Mahbubur Kiran, Omar Farrok, Md Abdullah-Al-Mamun, Md Rabiul Islam, Wei Xu Jan 2020

Progress In Piezoelectric Material Based Oceanic Wave Energy Conversion Technology, Mahbubur Kiran, Omar Farrok, Md Abdullah-Al-Mamun, Md Rabiul Islam, Wei Xu

Faculty of Engineering and Information Sciences - Papers: Part B

Recently, electrical engineers are paying great attention to develop oceanic wave energy conversion technologies based on the piezoelectric materials because of their excellent conveniences. Piezoelectric oceanic wave energy converters (OWECs) have several benefits over the others such as its small size, lightweight, no requirement of using intermediate device as well as having less negative impacts on the oceanic environment. Various review and research papers focus on the piezoelectric devices, their operation and application for oceanic energy conversion. But, to the best of the authors’ knowledge, none of the existing research or review papers present detailed scheme of piezoelectric device based …

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An Adaptive Feed-Forward Phase Locked Loop For Grid Synchronization Of Renewable Energy Systems Under Wide Frequency Deviations, Aravind Chellachi Kathiresan, Jeyaraj Pandiarajan, Asokan Sivaprakash, Thanikanti Sudhakar Babu, Md Rabiul Islam Jan 2020

An Adaptive Feed-Forward Phase Locked Loop For Grid Synchronization Of Renewable Energy Systems Under Wide Frequency Deviations, Aravind Chellachi Kathiresan, Jeyaraj Pandiarajan, Asokan Sivaprakash, Thanikanti Sudhakar Babu, Md Rabiul Islam

Faculty of Engineering and Information Sciences - Papers: Part B

Synchronization is a crucial problem in the grid-connected inverter’s control and operation. A phase-locked loop (PLL) is a typical grid synchronization strategy, which ought to have a high resistance to power system uncertainties since its sensitivity influences the generated reference signal. The traditional PLL catches the phase and frequency of the input signal via the feedback loop filter (LF). In general, to enhance the steady-state capability during distorted grid conditions generally, a filter tuned for nominal frequency is used. This PLL corrects large frequency deviations around the nominal frequency, which increases the PLL’s locking time. Therefore, this paper presents an …

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New Design Of Solar Photovoltaic And Thermal Hybrid System For Performance Improvement Of Solar Photovoltaic, Ridwone Hossain, Al Jumlat Ahmed, Sheik Islam, Nirupam Saha, Preetom Debnath, Abbas Z. Kouzani, M A. Mahmud Jan 2020

New Design Of Solar Photovoltaic And Thermal Hybrid System For Performance Improvement Of Solar Photovoltaic, Ridwone Hossain, Al Jumlat Ahmed, Sheik Islam, Nirupam Saha, Preetom Debnath, Abbas Z. Kouzani, M A. Mahmud

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Ridwone Hossain et al. Solar photovoltaic (PV) and solar thermal systems are most widely used renewable energy technologies. Theoretical study indicates that the energy conversion efficiency of solar photovoltaic gets reduced about 0.3% when its temperature increases by 1°C. In this regard, solar PV and thermal (PVT) hybrid systems could be a solution to draw extra heat from the solar PV panel to improve its performance by reducing its temperature. Here, we have designed a new type of heat exchanger for solar PV and thermal (PVT) hybrid systems and have studied the performance of the system. The PVT …

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Increased Dose To Organs In Urinary Tract Associates With Measures Of Genitourinary Toxicity In Pooled Voxel-Based Analysis Of 3 Randomized Phase Iii Trials, Marco Marcello, James W. Denham, Angel Kennedy, Annette Haworth, Allison Steigler, Peter B. Greer, Lois C. Holloway, Jason Dowling, Michael G. Jameson, Dale Roach, David Joseph, Sarah Gulliford, David Dearnaley, Matthew Sydes, Emma Hall, Martin Ebert Jan 2020

Increased Dose To Organs In Urinary Tract Associates With Measures Of Genitourinary Toxicity In Pooled Voxel-Based Analysis Of 3 Randomized Phase Iii Trials, Marco Marcello, James W. Denham, Angel Kennedy, Annette Haworth, Allison Steigler, Peter B. Greer, Lois C. Holloway, Jason Dowling, Michael G. Jameson, Dale Roach, David Joseph, Sarah Gulliford, David Dearnaley, Matthew Sydes, Emma Hall, Martin Ebert

Faculty of Engineering and Information Sciences - Papers: Part B

© Copyright © 2020 Marcello, Denham, Kennedy, Haworth, Steigler, Greer, Holloway, Dowling, Jameson, Roach, Joseph, Gulliford, Dearnaley, Sydes, Hall and Ebert. Purpose: Dose information from organ sub-regions has been shown to be more predictive of genitourinary toxicity than whole organ dose volume histogram information. This study aimed to identify anatomically-localized regions where 3D dose is associated with genitourinary toxicities in healthy tissues throughout the pelvic anatomy. Methods and Materials: Dose distributions for up to 656 patients of the Trans-Tasman Radiation Oncology Group 03.04 RADAR trial were deformably registered onto a single exemplar CT dataset. Voxel- based multiple comparison permutation dose …

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Pairwise-Based Hierarchical Gating Networks For Sequential Recommendation, Kexin Huang, Ye Du, Li Li, Jun Shen, Geng Sun Jan 2020

Pairwise-Based Hierarchical Gating Networks For Sequential Recommendation, Kexin Huang, Ye Du, Li Li, Jun Shen, Geng Sun

Faculty of Engineering and Information Sciences - Papers: Part B

The sequential pattern behind users’ behaviors indicates the importance of exploring the transition relationships among adjacent items in next-item recommendation task. Most existing methods based on Markov Chains or deep learning architecture have demonstrated their superiority in sequential recommendation scenario, but they have not been well-studied at a range of problems: First, the influence strength of items that the user just access might be different since not all items are equally important for modeling user’s preferences. Second, the user might assign various interests to certain parts of items, as what often attracts users is a specific feature or aspect of …

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Risk Factors Discovery For Cancer Survivability Analysis Using Graph-Rule Mining, Chaoyu Yang, Jie Yang, Zhenyu Yang Jan 2020

Risk Factors Discovery For Cancer Survivability Analysis Using Graph-Rule Mining, Chaoyu Yang, Jie Yang, Zhenyu Yang

Faculty of Engineering and Information Sciences - Papers: Part B

Mining and understanding patients' disease-development pattern is a major healthcare need. A huge number of research studies have focused on medical resource allocation, survivability prediction, risk management of diagnosis, etc. In this article, we are specifically interested in discovering risk factors for patients with high probability of developing cancers. We propose a systematic and data-driven algorithm and build around the idea of association rule mining. More precisely, the rule-mining method is firstly applied on the target dataset to unpack the underlying relationship of cancer-risk factors, via generating a set of candidate rules. Later, this set is represented as a rule …

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Developing An Ontology For Representing The Domain Knowledge Specific To Non-Pharmacological Treatment For Agitation In Dementia, Zhenyu Zhang, Ping Yu, H.C. Chang, S K. Lau, Cui Tao, Ning Wang, Mengyang Yin, Chao Deng Jan 2020

Developing An Ontology For Representing The Domain Knowledge Specific To Non-Pharmacological Treatment For Agitation In Dementia, Zhenyu Zhang, Ping Yu, H.C. Chang, S K. Lau, Cui Tao, Ning Wang, Mengyang Yin, Chao Deng

Faculty of Engineering and Information Sciences - Papers: Part B

Introduction: A large volume of clinical care data has been generated for managing agitation in dementia. However, the valuable information in these data has not been used effectively to generate insights for improving the quality of care. Application of artificial intelligence technologies offers us enormous opportunities to reuse these data. For health data science to achieve this, this study focuses on using ontology to coding clinical knowledge for non-pharmacological treatment of agitation in a machine-readable format. Methods: The resultant ontology—Dementia-Related Agitation Non-Pharmacological Treatment Ontology (DRANPTO)—was developed using a method adopted from the NeOn methodology. Results: DRANPTO consisted of 569 concepts …

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On The Impact Of Internal Gains And Comfort Band On The Effectiveness Of Building Thermal Zoning, Massimo Fiorentini, Laia Ledo Gomis, Dong Chen, Paul Cooper Jan 2020

On The Impact Of Internal Gains And Comfort Band On The Effectiveness Of Building Thermal Zoning, Massimo Fiorentini, Laia Ledo Gomis, Dong Chen, Paul Cooper

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 The Authors Thermal zoning is a commonly adopted building energy efficiency initiative, since thermally segregating conditioned spaces is generally expected to minimise energy losses when conditioning unoccupied spaces. When comparing a partitioned building with widely differing heat gains between zones to an equivalent non-partitioned building, ‘zoning’ might not always beneficial. This paper analyses the fundamental thermal processes involved in these scenarios by firstly undertaking a number of steady state analyses, demonstrating that there are scenarios where the thermal energy required to maintain comfort conditions is less for an open-plan arrangement than for a more highly partitioned building. We …

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A Review On Wire Arc Additive Manufacturing: Monitoring, Control And A Framework Of Automated System, Chunyang Xia, Zengxi Stephen Pan, Joseph W. Polden, Hui Jun Li, Yanling Xu, Shanben Chen, Yuming Zhang Jan 2020

A Review On Wire Arc Additive Manufacturing: Monitoring, Control And A Framework Of Automated System, Chunyang Xia, Zengxi Stephen Pan, Joseph W. Polden, Hui Jun Li, Yanling Xu, Shanben Chen, Yuming Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 The Society of Manufacturing Engineers Wire arc additive manufacturing technology (WAAM) has become a very promising alternative to high-value large metal components in many manufacturing industries. Due to its long process cycle time and arc-based deposition, defect monitoring, process stability and control are critical for the WAAM system to be used in the industry. Although major progress has been made in process development, path slicing and programming, and material analysis, a comprehensive process monitoring, and control system are yet to be developed. This paper aims to provide an in-depth review of sensing and control design suitable for a …

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Model Predictive Control Of Layer Width In Wire Arc Additive Manufacturing, Chunyang Xia, Zengxi Stephen Pan, Shiyu Zhang, Joseph W. Polden, Long Wang, Hui Jun Li, Yanling Xu, Shanben Chen Jan 2020

Model Predictive Control Of Layer Width In Wire Arc Additive Manufacturing, Chunyang Xia, Zengxi Stephen Pan, Shiyu Zhang, Joseph W. Polden, Long Wang, Hui Jun Li, Yanling Xu, Shanben Chen

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 The Society of Manufacturing Engineers Wire arc additive manufacturing (WAAM) is an emerging technology in the manufacturing industry, which uses a welding arc as an energy source to fuse metal wire and deposit layer by layer. In order to promote its manufacture precision, stability, and repeatability, it's crucial to develop a feedback control strategy for WAAM. This research implements vision-based feedback control for the layer width during the WAAM process. A WAAM system is developed using a robot and CMT welder with a visual sensing system. The dynamics of the layer width in WAAM process is modeled experimentally. …

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Fusing Multilevel Deep Features For Fabric Defect Detection Based Ntv-Rpca, Yan Dong, Junpu Wang, Chunlei Li, Zhoufeng Liu, Jiangtao Xi, Aihua Zhang Jan 2020

Fusing Multilevel Deep Features For Fabric Defect Detection Based Ntv-Rpca, Yan Dong, Junpu Wang, Chunlei Li, Zhoufeng Liu, Jiangtao Xi, Aihua Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

© 2013 IEEE. Fabric defect detection plays an important role in automated inspection and quality control in textile manufacturing. As the fabric images have complex and diverse textures and defects, traditional detection methods show a poor adaptability and low detection accuracy. Robust principal component analysis (RPCA) model that can be used to separate the image into object and background have proven applicable in fabric defect detection. However, how to represent texture feature of the fabric image more effectively is still problematic in this kind of method. In addition, the use of the traditional RPCA may result in low accuracy and …

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Model Predictive Control For A New Magnetic Linked Multilevel Inverter To Integrate Solar Photovoltaic Systems With The Power Grids, A M. Mahfuz-Ur-Rahman, Md Rabiul Islam, Kashem M. Muttaqi, Danny Sutanto Jan 2020

Model Predictive Control For A New Magnetic Linked Multilevel Inverter To Integrate Solar Photovoltaic Systems With The Power Grids, A M. Mahfuz-Ur-Rahman, Md Rabiul Islam, Kashem M. Muttaqi, Danny Sutanto

Faculty of Engineering and Information Sciences - Papers: Part B

The multilevel inverters are becoming increasingly popular for use in the grid integration of wind and photovoltaic (PV) power plants due to their higher voltage handling capability and the better output power quality. There are several types of multilevel inverters that have been proposed in the literature; among them the active neutral point clamp (ANPC) multilevel inverters have been drawing significant attention specially for solving the problems with other multilevel inverters. However, with the increase of number of levels, the ANPC requires more electronic switches and flying capacitors, by which the complexity and the cost increases. In this paper, an …

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Fault-Tolerant Analysis And Design Of Afpmsm With Multi-Disc Type Coreless Open-End Winding, Xiaoguang Wang, Meng Zhao, Lei Tang, Wei Xu, Md Rabiul Islam Jan 2020

Fault-Tolerant Analysis And Design Of Afpmsm With Multi-Disc Type Coreless Open-End Winding, Xiaoguang Wang, Meng Zhao, Lei Tang, Wei Xu, Md Rabiul Islam

Faculty of Engineering and Information Sciences - Papers: Part B

This article presents a multi-disc coreless axial flux permanent magnet synchronous machine (MDC-AFPMSM) with N pole and S pole type series magnetic circuit and open-end winding for high reliability applications, such as small power actuator system. Firstly, the topology and driving modes of MDC-AFPMSM are presented in details. In this article, a multi-objective optimization function is proposed to design the machine with full consideration of various influence factors. The drive performance indexes of four-phase, five-phase and six-phase machines are analyzed and discussed. Furthermore, main parameters of the five-phase MDC-AFPMSM with open-end winding are calculated. In order to reduce the torque …

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A Complete Cross Section Data Set For Electron Scattering By Pyridine: Modelling Electron Transport In The Energy Range 0–100 Ev, Filipe Costa, Ali Traoré-Dubuis, Lidia Álvarez, Ana Lozano, Xueguang Ren, Alexander Dorn, Paulo Limao-Vieira, Francisco Blanco, Juan Oller, Antonio Munoz, Adrián García-Abenza, Jimena Gorfinkiel, Alessandra Souza Barbosa, Marcio H. F. Bettega, Peter Stokes, Ronald White, Darryl Jones, Michael J. Brunger, Gustavo Garcia Jan 2020

A Complete Cross Section Data Set For Electron Scattering By Pyridine: Modelling Electron Transport In The Energy Range 0–100 Ev, Filipe Costa, Ali Traoré-Dubuis, Lidia Álvarez, Ana Lozano, Xueguang Ren, Alexander Dorn, Paulo Limao-Vieira, Francisco Blanco, Juan Oller, Antonio Munoz, Adrián García-Abenza, Jimena Gorfinkiel, Alessandra Souza Barbosa, Marcio H. F. Bettega, Peter Stokes, Ronald White, Darryl Jones, Michael J. Brunger, Gustavo Garcia

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Electron scattering cross sections for pyridine in the energy range 0–100 eV, which we previously measured or calculated, have been critically compiled and complemented here with new measurements of electron energy loss spectra and double differential ionization cross sections. Experimental techniques employed in this study include a linear transmission apparatus and a reaction microscope system. To fulfill the transport model requirements, theoretical data have been recalculated within our independent atom model with screening corrected additivity rule and interference effects (IAM-SCAR) method for energies above 10 eV. In addition, results from the …

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The Identification Of The Wind Parameters Based On The Interactive Multi-Models, Lihua Zhu, Zhiqiang Wu, Lei Wang, Yu Wang Jan 2020

The Identification Of The Wind Parameters Based On The Interactive Multi-Models, Lihua Zhu, Zhiqiang Wu, Lei Wang, Yu Wang

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Tech Science Press. All rights reserved. The wind as a natural phenomenon would cause the derivation of the pesticide drops during the operation of agricultural unmanned aerial vehicles (UAV). In particular, the changeable wind makes it difficult for the precision agriculture. For accurate spraying of pesticide, it is necessary to estimate the real-time wind parameters to provide the correction reference for the UAV path. Most estimation algorithms are model based, and as such, serious errors can arise when the models fail to properly fit the physical wind motions. To address this problem, a robust estimation model is proposed …

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A High Gain, Noise Cancelling 2515-4900 Mhz Cmos Lna For China Mobile 5g Communication Application, Xiaorong Zhao, Weili Cheng, Hongjin Zhu, Chunpeng Ge, Gengyuan Zhou, Zhongjun Fu Jan 2020

A High Gain, Noise Cancelling 2515-4900 Mhz Cmos Lna For China Mobile 5g Communication Application, Xiaorong Zhao, Weili Cheng, Hongjin Zhu, Chunpeng Ge, Gengyuan Zhou, Zhongjun Fu

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 Tech Science Press. All rights reserved. With the development of the times, people's requirements for communication technology are becoming higher and higher. 4G communication technology has been unable to meet development needs, and 5G communication technology has emerged as the times require. This article proposes the design of a low-noise amplifier (LNA) that will be used in the 5G band of China Mobile Communications. A low noise amplifier for mobile 5G communication is designed based on Taiwan Semiconductor Manufacturing Company (TSMC) 0.13 μm Radio Frequency (RF) Complementary Metal Oxide Semiconductor (CMOS) process. The LNA employs self-cascode devices in …

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Short Principal Ideal Problem In Multicubic Fields, Andrea Lesavourey, Thomas Plantard, Willy Susilo Jan 2020

Short Principal Ideal Problem In Multicubic Fields, Andrea Lesavourey, Thomas Plantard, Willy Susilo

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020 A. Lesavourey et al., published by De Gruyter 2020. One family of candidates to build a post-quantum cryptosystem upon relies on euclidean lattices. In order to make such cryptosystems more efficient, one can consider special lattices with an additional algebraic structure such as ideal lattices. Ideal lattices can be seen as ideals in a number field. However recent progress in both quantum and classical computing showed that such cryptosystems can be cryptanalysed efficiently over some number fields. It is therefore important to study the security of such cryptosystems for other number fields in order to have a better …

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