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Articles 2611 - 2640 of 14358

Full-Text Articles in Social and Behavioral Sciences

The Australian Mri-Linac Program: Measuring Profiles And Pdd In A Horizontal Beam, Jarrad Begg, Armia George, Sarah Alnaghy, Trent Causer, T Alharthi, L Glaubes, Bosheng Dong, Gary Goozee, Gary P. Liney, Lois C. Holloway, Paul J. Keall Jan 2017

The Australian Mri-Linac Program: Measuring Profiles And Pdd In A Horizontal Beam, Jarrad Begg, Armia George, Sarah Alnaghy, Trent Causer, T Alharthi, L Glaubes, Bosheng Dong, Gary Goozee, Gary P. Liney, Lois C. Holloway, Paul J. Keall

Faculty of Engineering and Information Sciences - Papers: Part A

The Australian MRI-Linac consists of a fixed horizontal photon beam combined with a MRI. Commissioning required PDD and profiles measured in a horizontal set-up using a combination of water tank measurements and gafchromic film. To validate the methodology, measurements were performed comparing PDD and profiles measured with the gantry angle set to 0 and 90° on a conventional linac. Results showed agreement to within 2.0% for PDD measured using both film and the water tank at gantry 90° relative to PDD acquired using gantry 0°. Profiles acquired using a water tank at both gantry 0 and 90° showed agreement in …


Railway Turnout Failure Mode Analysis, H. Li, M. Carkagis, Alan K. Hellier, H. Zhu, J. Mcleod, S. Pannila Jan 2017

Railway Turnout Failure Mode Analysis, H. Li, M. Carkagis, Alan K. Hellier, H. Zhu, J. Mcleod, S. Pannila

Faculty of Engineering and Information Sciences - Papers: Part A

A section of New South Wales’ railways rail turnout was removed, since testing revealed that it had become defective and no longer fit-for-purpose (see photos). The University of Wollongong was commissioned to investigate the failure mode of the track section, and to provide a detailed report on the material composition, heat treatment, surface finish, wear and any material defects. Since the turnout is over 25 years old, there are no test certificates or other quality assurance documents available for review.


Regional Variation In Rates Of Ivf Treatment Across Australia: A Population-Based Study, Louise Rawlings, Pauline Y. O'Shaughnessy, Stephen Robson Jan 2017

Regional Variation In Rates Of Ivf Treatment Across Australia: A Population-Based Study, Louise Rawlings, Pauline Y. O'Shaughnessy, Stephen Robson

Faculty of Engineering and Information Sciences - Papers: Part B

Background: There is variation in uptake of in vitro fertilisation (IVF) between countries, and Australia has high incidence rates of IVF due to universal public funding. However, it remains unclear whether there is regional variation and, if present, what might cause this. Objectives: We sought to determine whether regional variations in treatment rates existed and what might influence these. Methods: The number of cycles of fresh IVF and intrauterine insemination (IUI) for women were obtained for the period 2011 until 2014 in two age groups (25 to 34 years and 35 to 44 years) to calculate incidence rates. Proxy indicators …


Gas Reservoir And Emission Modelling To Evaluate Gas Drainage To Control Tailgate Gas Concentrations And Fugitive Emissions, Dennis J. Black Jan 2017

Gas Reservoir And Emission Modelling To Evaluate Gas Drainage To Control Tailgate Gas Concentrations And Fugitive Emissions, Dennis J. Black

Faculty of Engineering and Information Sciences - Papers: Part B

The process of longwall coal extraction coal causes fractures in the overlying and underlying strata and these fractures become pathways for gas released from adjacent coal seams to flow into the mine workings and contaminate the ventilation air. If the rate of gas emission exceeds the diluting capacity of the ventilation air, the gas concentration will increase and exceed the statutory limit resulting in production delays.All potential gas sources within the planned mining area, including coal seams located above and below the working seam, should be identified and sufficient gas data collected and used to determine the specific gas emission …


Editorial For The Special Issue On The Insights And Advancements In Microfluidics, Say Tan, Heng Xi, Weihua Li Jan 2017

Editorial For The Special Issue On The Insights And Advancements In Microfluidics, Say Tan, Heng Xi, Weihua Li

Faculty of Engineering and Information Sciences - Papers: Part B

No abstract provided.


Use Of Rubber Mats To Improve The Deformation And Degradation Behavior Of Rail Ballast Under Cyclic Loading, Sinniah Navaratnarajah, Buddhima Indraratna Jan 2017

Use Of Rubber Mats To Improve The Deformation And Degradation Behavior Of Rail Ballast Under Cyclic Loading, Sinniah Navaratnarajah, Buddhima Indraratna

Faculty of Engineering and Information Sciences - Papers: Part B

The deterioration of a rail track due to large dynamic wheel loads is inevitable over the years and leads to frequent, high-cost maintenance. This problem is more critical in isolated rail track locations such as bridges and tunnels, where the substructure is much stiffer than the surface track assembly. One measure used to minimize track deterioration is geosynthetic inclusions such as rubber mats under the layer of ballast. In this study, cyclic loads from fast and heavy-haul trains were simulated on stiffer track foundation conditions using a largescale process simulation triaxial (prismoidal) apparatus (PSPTA) to investigate the performance of ballast …


Study Of Micro Flexible Rolling Based On Grained Inhomogeneity, Feijun Qu, Zhengyi Jiang, Dongbin Wei, Qingqiang Chen, Haina Lu Jan 2017

Study Of Micro Flexible Rolling Based On Grained Inhomogeneity, Feijun Qu, Zhengyi Jiang, Dongbin Wei, Qingqiang Chen, Haina Lu

Faculty of Engineering and Information Sciences - Papers: Part B

This paper shows an analytical, numerical and experimental investigation to comprehend the role of grained inhomogeneity which plays in micro flexible rolling in terms of the average rolling force and the thickness directional springback of the workpiece after it exits the roll bite zone. Miniature tensile tests and micro hardness tests are accomplished to identify the scattered stress-strain curves for 500 ¿m thick aluminium alloy 1060 samples with grain size of approximately 23-71 µm and to determine the weighted heterogeneity coefficient for each sample separately, according to which the theoretical calculations and numerical simulations based upon 3D Voronoi tessellation technique …


Kinetic Study Of Thermal Degradation Of Chitosan As A Function Of Deacetylation Degree, M A. Gámiz-González, Daniela M. Correia, Senentxu Lanceros-Mendez, Vitor Sencadas, J L. Gomez Ribelles, A Vidaurre Jan 2017

Kinetic Study Of Thermal Degradation Of Chitosan As A Function Of Deacetylation Degree, M A. Gámiz-González, Daniela M. Correia, Senentxu Lanceros-Mendez, Vitor Sencadas, J L. Gomez Ribelles, A Vidaurre

Faculty of Engineering and Information Sciences - Papers: Part B

Thermal degradation of chitosan with varying deacetylation degree (DD) ranging between 50 and 85% was analyzed by dynamic thermogravimetric analysis at different heating rates. The present study focused on the temperature range between 500 and 800 K, above water evaporation. Thermal degradation showed a main degradation stage in this temperature interval with a second stage that appeared in the weight derivative curves as a shoulder in the high temperature side of the main peak with increasing intensity as the DD decreased. The Kissinger and isoconversional Ozawa-Flynn-Wall models were employed to evaluate the Ea of both thermal degradation processes. Different kinetic …


Analysis Of Tio2 Nano-Additive Water-Based Lubricants In Hot Rolling Of Microalloyed Steel, Hui Wu, Jingwei Zhao, Wenzhen Xia, Xiawei Cheng, Anshun He, Jung-Ho Yun, Lianzhou Wang, Han Huang, Sihai Jiao, Li Huang, Suoquan Zhang, Zhengyi Jiang Jan 2017

Analysis Of Tio2 Nano-Additive Water-Based Lubricants In Hot Rolling Of Microalloyed Steel, Hui Wu, Jingwei Zhao, Wenzhen Xia, Xiawei Cheng, Anshun He, Jung-Ho Yun, Lianzhou Wang, Han Huang, Sihai Jiao, Li Huang, Suoquan Zhang, Zhengyi Jiang

Faculty of Engineering and Information Sciences - Papers: Part B

No abstract provided.


Nitrogen Doping In The Carbon Matrix For Li-Ion Hybrid Supercapacitors: State Of The Art, Challenges And Future Prospective, Syeda W. Bokhari, A Siddique, Hui Pan, Yao Li, M Imtiaz, Zhixin Chen, Shenmin Zhu, Di Zhang Jan 2017

Nitrogen Doping In The Carbon Matrix For Li-Ion Hybrid Supercapacitors: State Of The Art, Challenges And Future Prospective, Syeda W. Bokhari, A Siddique, Hui Pan, Yao Li, M Imtiaz, Zhixin Chen, Shenmin Zhu, Di Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

Li-ion hybrid supercapacitors (LiHSCs) have emerged as an extremely attractive energy storage system by combining the prime advantages of Li-ion batteries and supercapacitors. As a common electrode material in both lithium ion batteries and supercapacitors, graphene and activated carbons offer a tunable porous structure with high chemical, thermal and physical stability, which in turn results in excellent electronic conductivity and improved capacity as compared with the other electrodes. Elemental nitrogen doping in graphene and activated carbons is believed to further improve their performance. In this review, the state of the art of hybrid supercapacitors is briefly summarized with an emphasis …


Experimental Investigation Of Composite Beams Reinforced With Gfrp I-Beam And Steel Bars, Muhammad N. S Hadi, Jiansong Yuan Jan 2017

Experimental Investigation Of Composite Beams Reinforced With Gfrp I-Beam And Steel Bars, Muhammad N. S Hadi, Jiansong Yuan

Faculty of Engineering and Information Sciences - Papers: Part B

This paper presents results of an experimental study on the flexural behaviour of a composite beam, which is reinforced with longitudinal tensile steel bars as well as glass fibre reinforced polymer (GFRP) pultruded I-beam encased in concrete. Five beam specimens, including one traditional reinforced concrete (RC) beam and four composite beams, were cast and tested under four-point bending. The variables involved in the composite beams include the type of longitudinal tensile bars (steel bars and GFRP bars) and the location of the I-beam in the cross-section (middle and a shift of 30 mm towards the tension region). The test results …


Shear Strength Model Of Reinforced-Concrete Exterior Joint Under Cyclic Loading, Tung M. Tran, Muhammad N. S Hadi Jan 2017

Shear Strength Model Of Reinforced-Concrete Exterior Joint Under Cyclic Loading, Tung M. Tran, Muhammad N. S Hadi

Faculty of Engineering and Information Sciences - Papers: Part B

A capacity model for shear strength of reinforced-concrete exterior beam-column joints subjected to quasi-static cyclic loading is established. In this model, only a fraction of this force is asserted to be transferred into the joint core, the remainder is assumed to be transferred into the adjacent column. A biaxial failure criterion of concrete is adopted to predict shear failure of the joint core caused by a combination of principal compression and tension stresses. The contribution of the shear reinforcement is accounted for by improving the tensile strength of the concrete. In addition, the special features of the proposed model include: …


Controllable Dc-Link Fault Current Limiter Augmentation With Dc Chopper To Improve Fault Ride-Through Of Dfig, Amin Jalilian, Seyed Behzad Naderi, Michael Negnevitsky, Mehrdad Tarafdar Hagh, Kashem M. Muttaqi Jan 2017

Controllable Dc-Link Fault Current Limiter Augmentation With Dc Chopper To Improve Fault Ride-Through Of Dfig, Amin Jalilian, Seyed Behzad Naderi, Michael Negnevitsky, Mehrdad Tarafdar Hagh, Kashem M. Muttaqi

Faculty of Engineering and Information Sciences - Papers: Part B

Doubly fed induction generator (DFIG) based wind turbines are sensitive to grid faults due to utilising small-scale rotor side converter (RSC). The application of crowbar protection to improve the fault ride-through (FRT) capability of the DFIG converts it to a squirrel cage induction generator, which makes it difficult to comply with grid codes. This study proposes an innovative DC-link controllable fault current limiter (C-FCL) based FRT scheme for the RSC to improve the FRT capability of the DFIG. The proposed scheme replaces the AC crowbar protection and eliminates its disadvantages. The C-FCL does not affect the normal operation of the …


Methods For Harmonic Analysis And Reporting In Future Grid Applications, Sean T. Elphick, Victor J. Gosbell, Victor W. Smith, Sarath Perera, Phil Ciufo, Gerrard M. Drury Jan 2017

Methods For Harmonic Analysis And Reporting In Future Grid Applications, Sean T. Elphick, Victor J. Gosbell, Victor W. Smith, Sarath Perera, Phil Ciufo, Gerrard M. Drury

Faculty of Engineering and Information Sciences - Papers: Part B

The rollout of advanced metering infrastructure, advanced distribution automation schemes, and integration of generation into distribution networks, along with a raising of awareness of power quality (PQ), means that there is an increase in the availability of power system monitoring data. In particular, the data for harmonics, whether it is voltage or current harmonics, is now available from a large number of sites and from a diverse range of PQ instruments. The traditional analysis and reporting of power quality examines harmonic orders to the 50th. This means that the harmonic data available for analysis are significantly larger than, for example, …


Large Scale Proactive Power-Quality Monitoring: An Example From Australia, Sean T. Elphick, Phil Ciufo, Gerrard M. Drury, Victor W. Smith, Sarath Perera, Victor J. Gosbell Jan 2017

Large Scale Proactive Power-Quality Monitoring: An Example From Australia, Sean T. Elphick, Phil Ciufo, Gerrard M. Drury, Victor W. Smith, Sarath Perera, Victor J. Gosbell

Faculty of Engineering and Information Sciences - Papers: Part B

In Australia and many other countries, distribution network service providers (DNSPs) have an obligation to their customers to provide electrical power that is reliable and of high quality. Failure to do so may have significant implications ranging from financial penalties theoretically through to the loss of a license to distribute electricity. In order to ensure the reliability and quality of supply are met, DNSPs engage in monitoring and reporting practice. This paper provides an overview of a large long-running power-quality monitoring project that has involved most of Australia's DNSPs at one time or another. This paper describes the challenges associated …


Influence Of Relaxation Modes On Membrane Fouling In Submerged Membrane Bioreactor For Domestic Wastewater Treatment, Rasikh Habib, Muhammad Bilal Asif, Sidra Iftekhar, Zahiruddin Khan, Khum Gurung, Varsha Srivastava, Mika Sillanpää Jan 2017

Influence Of Relaxation Modes On Membrane Fouling In Submerged Membrane Bioreactor For Domestic Wastewater Treatment, Rasikh Habib, Muhammad Bilal Asif, Sidra Iftekhar, Zahiruddin Khan, Khum Gurung, Varsha Srivastava, Mika Sillanpää

Faculty of Engineering and Information Sciences - Papers: Part B

Relaxation and backwashing have become an integral part of membrane bioreactor (MBR) operations for fouling control. This study was carried out on real municipal wastewater to evaluate the influence of different operational strategies on membrane fouling at equivalent water yield. Four relaxation modes (MBR10+0, MBR10+1, MBR10+1.5 and MBR10+2) were tested to analyze membrane fouling behavior. For the optimization of relaxation modes, fouling rate in terms of trans-membrane pressure, hydraulic resistances and characteristics of fouling fractions were analyzed. It has been observed that cake layer resistance was minimum in MBR10+1.5 but pore blockage …


Effect Of Bolt Rib Spacing On Load Transfer Mechanism, Tao Wu, Chen Cao, Jun Han, Ting X. Ren Jan 2017

Effect Of Bolt Rib Spacing On Load Transfer Mechanism, Tao Wu, Chen Cao, Jun Han, Ting X. Ren

Faculty of Engineering and Information Sciences - Papers: Part B

Rock bolting has firmly used as the coal mine roof reinforcement in underground coal mine. The bolting effect of fully grouted rebar bolt is closely related to the bolt surface profile. This paper provides an experimental study to confirm that bolt rib internal length has great influence on bolting effect. Pull-out tests were conducted using rebar bolt with different rib spacings of 12, 24, 36 and 48. mm representatively from steel tube and from concrete. Results show that peak load increases 25.3% for bolt with large rib spacing. For pull out using concrete block, the increment of peak load between …


Terahertz Spectroscopy: The New Tool To Help Detect Art Fraud, R A. Lewis Jan 2017

Terahertz Spectroscopy: The New Tool To Help Detect Art Fraud, R A. Lewis

Faculty of Engineering and Information Sciences - Papers: Part B

When we look at a painting, how do we know it's a genuine piece of art? Everything we see with the unaided eye in a painting - from the Australian outback images of Albert Namatjira or Russell Drysdale, to the vibrant works of Pro Hart - is thanks to the mix of colours that form part of the visible spectrum. But if we look at the painting in a different way, at a part of the spectrum that is invisible to our eyes, then we can see something very different. As our recently published research shows, it could even help …


New And Practical Mathematical Model Of Membrane Fouling In An Aerobic Submerged Membrane Bioreactor, M F. R Zuthi, Wenshan Guo, Huu H. Ngo, Long D. Nghiem, Faisal I. Hai, Siqing Xia, Jianxin Li, Jixiang Li, Yi Liu Jan 2017

New And Practical Mathematical Model Of Membrane Fouling In An Aerobic Submerged Membrane Bioreactor, M F. R Zuthi, Wenshan Guo, Huu H. Ngo, Long D. Nghiem, Faisal I. Hai, Siqing Xia, Jianxin Li, Jixiang Li, Yi Liu

Faculty of Engineering and Information Sciences - Papers: Part B

This study aimed to develop a practical semi-empirical mathematical model of membrane fouling that accounts for cake formation on the membrane and its pore blocking as the major processes of membrane fouling. In the developed model, the concentration of mixed liquor suspended solid is used as a lumped parameter to describe the formation of cake layer including the biofilm. The new model considers the combined effect of aeration and backwash on the foulants¿ detachment from the membrane. New exponential coefficients are also included in the model to describe the exponential increase of transmembrane pressure that typically occurs after the initial …


Collaborative Data Analytics Towards Prediction On Pathogen-Host Protein-Protein Interactions, Huaming Chen, Jun Shen, Lei Wang, Jiangning Song Jan 2017

Collaborative Data Analytics Towards Prediction On Pathogen-Host Protein-Protein Interactions, Huaming Chen, Jun Shen, Lei Wang, Jiangning Song

Faculty of Engineering and Information Sciences - Papers: Part B

Nowadays more and more data are being sequenced and accumulated in system biology, which bring the data analytics researchers to a brand new era, namely 'big data', to extract the inner relationship and knowledge from the huge amount of data.


A General Framework For Secure Sharing Of Personal Health Records In Cloud System, Man Ho Au, Tsz Hon Yuen, Joseph K. Liu, Willy Susilo, Xinyi Huang, Zoe L. Jiang Jan 2017

A General Framework For Secure Sharing Of Personal Health Records In Cloud System, Man Ho Au, Tsz Hon Yuen, Joseph K. Liu, Willy Susilo, Xinyi Huang, Zoe L. Jiang

Faculty of Engineering and Information Sciences - Papers: Part B

Personal Health Record (PHR) has been developed as a promising solution that allows patient-doctors interactions in a very effective way. Cloud technology has been seen as the prominent candidate to store the sensitive medical record in PHR, but to date, the security protection provided is yet inadequate without impacting the practicality of the system. In this paper, we provide an affirmative answer to this problem by proposing a general framework for secure sharing of PHRs. Our system enables patients to securely store and share their PHR in the cloud server (for example, to their carers), and furthermore the treating doctors …


Hep-2 Cell Image Classification With Deep Convolutional Neural Networks, Zhimin Gao, Lei Wang, Luping Zhou, Jianjia Zhang Jan 2017

Hep-2 Cell Image Classification With Deep Convolutional Neural Networks, Zhimin Gao, Lei Wang, Luping Zhou, Jianjia Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

2017 IEEE.Efficient Human Epithelial-2 cell image classification can facilitate the diagnosis of many autoimmune diseases. This paper proposes an automatic framework for this classification task, by utilizing the deep convolutional neural networks (CNNs) which have recently attracted intensive attention in visual recognition. In addition to describing the proposed classification framework, this paper elaborates several interesting observations and findings obtained by our investigation. They include the important factors that impact network design and training, the role of rotation-based data augmentation for cell images, the effectiveness of cell image masks for classification, and the adaptability of the CNN-based classification system across different …


Proeva: Runtime Proactive Performance Evaluation Based On Continuous-Time Mardov Chains, Guoxin Su, Taolue Chen, Yuan Feng, David Rosenblum Jan 2017

Proeva: Runtime Proactive Performance Evaluation Based On Continuous-Time Mardov Chains, Guoxin Su, Taolue Chen, Yuan Feng, David Rosenblum

Faculty of Engineering and Information Sciences - Papers: Part B

Software systems, especially service-based software systems, need to guarantee runtime performance. If their performance is degraded, some reconfiguration countermeasures should be taken. However, there is usually some latency before the countermeasures take effect.


Advanced Techniques For Characterizing Bioinspired Materials, Raul Machado, Vitor Sencadas Jan 2017

Advanced Techniques For Characterizing Bioinspired Materials, Raul Machado, Vitor Sencadas

Faculty of Engineering and Information Sciences - Papers: Part B

Understanding materials' analytical techniques is a key feature to ensure efficient material development and to fully evaluate their functional properties. Biobased materials are emergent materials that are attracting attention due to their outstanding properties, pushing forward their use in a wide range of applications going from biomedical and pharmacy to even food industry, among others. This chapter provides an educational resource with the most relevant characterization techniques that are applicable to the development and characterization of biobased materials. It discusses physical, thermal, and chemical characterization techniques that are able to provide information related to the microstructure and morphology, and the …


Bonding Process And Interfacial Reaction In Horizontal Twin-Roll Casting Of Steel/Aluminum Clad Sheet, Gang Chen, Jintao Li, Guangming Xu Jan 2017

Bonding Process And Interfacial Reaction In Horizontal Twin-Roll Casting Of Steel/Aluminum Clad Sheet, Gang Chen, Jintao Li, Guangming Xu

Faculty of Engineering and Information Sciences - Papers: Part B

Asymmetrical and lower heat transport caused by the cladding strip during twin-roll casting (TRC) of clad sheet makes the process window narrow compared with traditional TRC. The effect of pouring temperature on process stability is more remarkable when it is relatively high under high casting speed and casting speed becomes a leading factor when its value is low. The inter-diffusion zone width at the Al/Fe interface depends on the solid/semi-solid contacting time. The longer the time is, the wider the inter-diffusion zone. A widest zone of 3.8 μm is attained under condition of casting speed of 1.25 m/min and pouring …


Action Learning In Undergraduate Engineering Thesis Supervision, Brad Stappenbelt Jan 2017

Action Learning In Undergraduate Engineering Thesis Supervision, Brad Stappenbelt

Faculty of Engineering and Information Sciences - Papers: Part B

In the present action learning implementation, twelve action learning sets were conducted over eight years. The action learning sets consisted of students involved in undergraduate engineering research thesis work. The concurrent study accompanying this initiative investigated the influence of the action learning environment on student approaches to learning and any accompanying academic, learning and personal benefits realised. The influence of preferred learning styles on set function and student adoption of the action learning process were also examined. The action learning environment implemented had a measurable significant positive effect on student academic performance, their ability to cope with the stresses associated …


Experimental Investigation Of Circular High-Strength Concrete Columns Reinforced With Glass Fiber-Reinforced Polymer Bars And Helices Under Different Loading Conditions, Muhammad N. S Hadi, Hayder Alaa Hasan, M Neaz Sheikh Jan 2017

Experimental Investigation Of Circular High-Strength Concrete Columns Reinforced With Glass Fiber-Reinforced Polymer Bars And Helices Under Different Loading Conditions, Muhammad N. S Hadi, Hayder Alaa Hasan, M Neaz Sheikh

Faculty of Engineering and Information Sciences - Papers: Part B

Existing design codes and guidelines do not adequately address the design of concrete columns reinforced with fiber-reinforced polymer (FRP) bars. Accordingly, a number of research studies investigated the behavior of FRP bar-reinforced concrete columns. However, the previous studies were limited to FRP bar-reinforced normal-strength concrete (NSC) columns. In this study, the behavior of glass fiber-reinforced polymer (GFRP) bar-reinforced high-strength concrete (HSC) specimens under different loading conditions was investigated in terms of axial load-carrying capacity, confinement efficiency of the GFRP helices, as well as the ductility and post-peak axial load-axial deformation response. The effects of the key parameters such as the …


Disturbance Observer Based Takagi-Sugeno Fuzzy Control For An Active Seat Suspension, Donghong Ning, Shuaishuai Sun, Fei Zhang, Haiping Du, Weihua Li, Bangji Zhang Jan 2017

Disturbance Observer Based Takagi-Sugeno Fuzzy Control For An Active Seat Suspension, Donghong Ning, Shuaishuai Sun, Fei Zhang, Haiping Du, Weihua Li, Bangji Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

In this paper, a disturbance observer based Takagi-Sugeno (TS) fuzzy controller is proposed for an active seat suspension; both simulations and experiments have been performed verifying the performance enhancement and stability of the proposed controller. The controller incorporates closed-loop feedback control using the measured acceleration of the seat and deflection of the suspension; these two variables can be easily measured in practical applications, thus allowing the proposed controller to be robust and adaptable. A disturbance observer that can estimate the disturbance caused by friction, model simplification, and controller output error has also been used to compensate a H¿ state feedback …


Accurate Range Estimation For An Electric Vehicle Including Changing Environmental Conditions And Traction System Efficiency, Kaveh Sarrafan, Danny Sutanto, Kashem M. Muttaqi, Graham Town Jan 2017

Accurate Range Estimation For An Electric Vehicle Including Changing Environmental Conditions And Traction System Efficiency, Kaveh Sarrafan, Danny Sutanto, Kashem M. Muttaqi, Graham Town

Faculty of Engineering and Information Sciences - Papers: Part B

Range anxiety is an obstacle to the acceptance of electric vehicles (EVs), caused by drivers' uncertainty regarding their vehicle's state of charge (SoC) and the energy required to reach their destination. Most estimation methods for these variables use simplified models with many assumptions that can result in significant error, particularly if dynamic and environmental conditions are not considered. For example, the combined efficiency of the inverter drive and electric motor varies throughout the route and is not constant as assumed in most range estimation methods. This study proposes an improved method for SoC and range estimation by taking into account …


Thermal Environment And Thermal Sensations Of Occupants Of Nursing Homes: A Field Study, Federico Tartarini, Paul Cooper, Richard Fleming Jan 2017

Thermal Environment And Thermal Sensations Of Occupants Of Nursing Homes: A Field Study, Federico Tartarini, Paul Cooper, Richard Fleming

Faculty of Engineering and Information Sciences - Papers: Part B

A demographic shift is underway in Australia; the number of people aged 65 and over is rapidly increasing. Regulations have been implemented to enhance the quality of care being provided in nursing homes; however, in the aged care sector there is little by way of guidance addressing design and performance issues in regards to Indoor Environmental Quality (IEQ), and there is still uncertainty as to the perceptions of residents on specific IEQ factors. The objectives of this study are to determine: how accredited facilities are performing in regards to thermal comfort conditions; how indoor environmental factors can be assessed in …