Digital Commons Network^™

Creep Behaviour And Constitutive Model Of Coal Filled With Gas, Xiangchun Li, Chunli Yang, Ting X. Ren, Baisheng Nie, Caihong Zhao, Shuiwen Liu, Tao Jiang

Faculty of Engineering and Information Sciences - Papers: Part B

Coal exhibits different creep behaviours when filled with different amounts of gas. Creep tests of coal filled with 0 and 0.5. MPa. gas were performed, and strain under different axial stress was compared. The three creep constitutive models which were analysed using the method fitting experimental data for determining which creep model can reflect the creep process of the test best. The results show that the deformation of coal filled with 0.5. MPa. gas is more higher than that of coal filled with 0. MPa. gas under the same axial stress. Gas plays a positive effect on the deformation of …

African Societal Challenges Transformation Through Iot, Salim Al Isma'ili, Mengxiang Li, Jun Shen, Qiang He, Abdulaziz Alghazi

Faculty of Engineering and Information Sciences - Papers: Part B

No abstract provided.

Explicit Stress-Strain Equations For Modelling Frictional Materials, K J. Xu, Martin D. Liu, Buddhima Indraratna, Suksun Horpibulsuk

Faculty of Engineering and Information Sciences - Papers: Part B

In this paper, a comprehensive study on simulating the shearing behavior of frictional materials is performed. A set of two explicit equations, describing the relationship among the shear stress ratio and the distortional strain and the volumetric strain, are formulated independently. The equations contain three stress parameters and three strain parameters and another parameter representing the nonuniformity of stress and strain during softening. All the parameters have clear physical significance and can be determined experimentally. It is demonstrated that the proposed equations have the capacity of simulating the complicated shearing behavior of many types of frictional materials including geomaterials. The …

Feasibility Of Free Breathing Lung Mri For Radiotherapy Using Non-Cartesian K-Space Acquisition Schemes, Shivani Kumar, Robba Rai, Alto Stemmer, Sonal Josan, Lois C. Holloway, Shalini K. Vinod, Daniel Moses, Gary P. Liney

Faculty of Engineering and Information Sciences - Papers: Part B

Objective:

To test a free-breathing MRI protocol for anatomical and functional assessment during lung cancer radiotherapy by assessing two non-Cartesian acquisition schemes based on T₁ weighted 3D gradient recall echo sequence: (i) stack-of stars (StarVIBE) and (ii) spiral (SpiralVIBE) trajectories. Methods:

MR images on five healthy volunteers were acquired on a wide bore 3T scanner (MAGNETOM Skyra, Siemens Healthcare, Erlangen, Germany). Anatomical image quality was assessed on: (1) free breathing (StarVIBE), (2) the standard clinical sequence (volumetric interpolated breath-hold examination, VIBE) acquired in a 20 second (s) compliant breath-hold and (3) 20 s non-compliant breath-hold. For functional assessment, StarVIBE …

Optimal Control Based Stiffness Identification Of An Ankle-Foot Orthosis Using A Predictive Walking Model, Manish Sreenivasa, Matthew Millard, Martin Felis, Katja Mombaur, Sebastian I. Wolf

Faculty of Engineering and Information Sciences - Papers: Part B

Predicting the movements, ground reaction forces and neuromuscular activity during gait can be a valuable asset to the clinical rehabilitation community, both to understand pathology, as well as to plan effective intervention. In this work we use an optimal control method to generate predictive simulations of pathological gait in the sagittal plane. We construct a patient-specific model corresponding to a 7-year old child with gait abnormalities and identify the optimal spring characteristics of an ankle-foot orthosis that minimizes muscle effort. Our simulations include the computation of foot-ground reaction forces, as well as the neuromuscular dynamics using computationally efficient muscle torque …

Load And Moment Interaction Diagram For Circular Concrete Columns Reinforced With Gfrp Bars And Gfrp Helices, Hogr Karim, M Neaz Sheikh, Muhammad N. S Hadi

Faculty of Engineering and Information Sciences - Papers: Part B

This paper presents analytical and experimental studies on the axial load-bending moment behavior of glass fiber-reinforced polymer (GFRP) bars and helices RC columns. The nominal axial load and bending moment of the columns were analyzed based on the stress-strain behavior of the cross-sectional components. A numerical integration method was used to determine the compressive force of concrete in the compression region. The analytical results were verified with experimental results of 12 circular specimens reinforced with GFRP bars and GFRP helices. Out of these 12 specimens, eight specimens were taken from available literature and four specimens were tested in this study. …

Role Of Membrane Fouling Substances On The Rejection Of N-Nitrosamines By Reverse Osmosis, Takahiro Fujioka, Hitoshi Kodamatani, Hidenobu Aizawa, Stephen Gray, Kenneth P. Ishida, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part B

The impact of fouling substances on the rejection of four N-nitrosamines by a reverse osmosis (RO) membrane was evaluated by characterizing individual organic fractions in a secondary wastewater effluent and deploying a novel high-performance liquid chromatography-photochemical reaction-chemiluminescence (HPLC-PR-CL) analytical technique. The HPLC-PR-CL analytical technique allowed for a systematic examination of the correlation between the fouling level and the permeation of N-nitrosamines in the secondary wastewater effluent and synthetic wastewaters through an RO membrane. Membrane fouling caused by the secondary wastewater effluent led to a notable decrease in the permeation of N-nitrosodimethylamine (NDMA) while a smaller but nevertheless …

Effects Of Aerodynamic Damping On The Tower Load Of Offshore Horizontal Axis Wind Turbines, Xiong Liu, Cheng Lu, Gangqiang Li, Ajit R. Godbole, Yan Chen

Faculty of Engineering and Information Sciences - Papers: Part B

Aerodynamic damping has an important effect on the dynamic response of offshore Horizontal Axis Wind Turbines (HAWTs). In this paper, an analysis of the loads on offshore HAWTs is presented. The analysis combines the aerodynamics, hydrodynamics and structural dynamics of the structure, and includes the effects of aerodynamic damping. The aim is to better understand the role of aerodynamic damping during the interaction of wind and wave and the structure, and to quantitatively evaluate the effects of aerodynamic damping on the lifetime fatigue load on offshore HAWT towers. The aerodynamic loads are estimated using the Blade Element-Momentum (BEM) theory, including …

Persuasive Systems Design Features In Promoting Medication Management For Consumers, Khin Than Win, Judy Mullan, Sarah Katherine Howard, Harri Oinas-Kukkonen

Faculty of Engineering and Information Sciences - Papers: Part B

Medication safety continues to be a growing concern in the healthcare industry. Providing medication information to consumers and supporting self- management would help to reduce medication errors and to increase medication adherence. This paper reviews the persuasive systems design features used in current medication management applications for consumers. A database search was conducted to identify relevant articles, which were then reviewed using the Persuasive Systems Design model as a framework for analysis. The results highlighted the applicability of these features for the medication management information systems available to consumers. Primary task support and Dialogue support categories were highly cited in …

A Mann-Whitney Type Effect Measure Of Interaction For Factorial Designs, Jan De Neve, Olivier Thas

Faculty of Engineering and Information Sciences - Papers: Part B

We propose a measure for interaction for factorial designs that is formulated in terms of a probability similar to the effect size of the Mann-Whitney test. It is shown how asymptotic confidence intervals can be obtained for the effect size and how a statistical test can be constructed. We further show how the test is related to the test proposed by Bhapkar and Gore [Sankhya A, 36:261-272 (1974)]. The results of a simulation study indicate that the test has good power properties and illustrate when the asymptotic approximations are adequate. The effect size is demonstrated on an example dataset.

A Highly Accelerated Parallel Multi-Gpu Based Reconstruction Algorithm For Generating Accurate Relative Stopping Powers, Paniz Karbasi, Ritchie Cai, Blake Schultze, Hanh Nguyen, Jones Reed, Patrick Hall, Valentina Giacometti, Vladimir Bashkirov, Robert P. Johnson, Nick Karonis, Jeffrey Olafsen, Caesar Ordonez, Keith Schubert, Reinhard W. Schulte

Faculty of Engineering and Information Sciences - Papers: Part B

Low-dose Proton Computed Tomography (pCT) is an evolving imaging modality that is used in proton therapy planning which addresses the range uncertainty problem. The goal of pCT is generating a 3D map of relative stopping power measurements with high accuracy within clinically required time frames. Generating accurate relative stopping power values within the shortest amount of time is considered a key goal when developing an image reconstruction software. The existing image reconstruction softwares have successfully met this time frame and even exceeded this time goal, but require clusters with hundreds of processors. This paper describes a novel reconstruction technique using …

The State Of The Art Of Battery Charging Infrastructure For Electrical Vehicles: Topologies, Power Control Strategies, And Future Trend, Viet Thang Tran, Danny Sutanto, Kashem M. Muttaqi

Faculty of Engineering and Information Sciences - Papers: Part B

Electric vehicle battery (EVB) charger topologies play a vital role to increase the penetration of EVs. This paper reviews the status quo of EV battery (EVB) chargers in term of converter topologies, operation modes, and power control strategies for EVs. EVB Chargers are classified based on their power levels and power flow direction. Referring to power ratings, EV chargers can be divided into Level 1, Level 2 and Level 3. Level 1 and Level 2 are normally compatible with on-board chargers while Level 3 is used for an off-board charger. Unidirectional/bidirectional power flow can be obtained at all power levels. …

Vertical Whiteboarding: Riding The Wave Of Student Activity In A Mathematics Classroom, Patricia A. Forrester, Carolyn Mcphail, Suellen L. Denny

Faculty of Social Sciences - Papers (Archive)

In 2014 we commenced working on the Inspiring Mathematics and Science in Teacher Education (IMSITE) project, aimed at improving mathematics and science education in Australia by improving the recruitment, development and retention of mathematics and science teachers. In this project we undertook a range of activities, the most exciting of which was the introduction of whiteboarding as a tool to actively engage high school students with mathematics.

Promoting Ball Skills In Preschool-Age Girls, Sanne L.C. Veldman, Kara K. Palmer, Anthony D. Okely, Leah Robinson

Faculty of Social Sciences - Papers (Archive)

Objectives: Evidence supports that girls are less proficient than boys at performing ball skills. This study examined the immediate and long-term effects of a ball skill intervention on preschool-age girls' ball skill performance. Design: Randomized controlled trial. Methods: Girls (Mage = 47.24 ± 7.38 months) were randomly assigned to a high autonomy, mastery-based 9-week motor skill intervention (the Children's Health Activity Motor Program; CHAMP, 540 min; n = 38) or a control group (free-play; n = 16). Ball skill proficiency was assessed at pretest, posttest, and retention test(after 9 weeks)using the object control subscale ofthe Test of GrossMotor Development - …

Attitudes Of Palliative Care Clinical Staff Toward Prolonged Grief Disorder Diagnosis And Grief Interventions, Esther Davis, Frank P. Deane, Gregory D. Barclay, Joan Bourne, Vivienne Connolly

Faculty of Social Sciences - Papers (Archive)

Copyright Cambridge University Press 2017 Objective:: The provision of psychological support to caregivers is an important part of the role of the clinical staff working in palliative care. Staff knowledge and attitudes may determine their openness to referring caregivers to a psychological intervention. We recently developed a self-help intervention for grief and psychological distress among caregivers and were interested in exploring the extent to which staff knowledge and attitudes might affect future implementation. The aims of our study were to: (1) examine the acceptability of self-help psychological intervention for caregivers among palliative care clinical staff; (2) examine potential attitudinal barriers …

Exploring Bodily Sensations Experienced During Flow States In Professional National Hunt Jockeys: A Connecting Analysis, Patricia C. Jackman, Gerry Fitzpatrick, Aoife Lane, Christian F. Swann

Faculty of Social Sciences - Papers (Archive)

Previous research has suggested that distinct bodily sensations are experienced by athletes during flow states, and could represent a sportspecific characteristic of this phenomenon. This study aimed to enrich understanding about bodily sensations and flow states in sport by exploring this experience in national hunt jockeys. The interspecies nature of horserider partnerships accentuates the importance of bodily awareness in equestrian sports. Therefore, horse racing provided a fertile context in which to investigate bodily sensations experienced during flow states in sport. In-depth, semi-structured interviews exploring the experience of flow in horse racing were undertaken with 10 professional national hunt jockeys (M …

About Face: Matching Unfamiliar Faces Across Rotations Of View And Lighting, Simone K. Favelle, Harold C. Hill, Peter Claes

Faculty of Social Sciences - Papers (Archive)

Matching the identities of unfamiliar faces is heavily influenced by variations in their images. Changes to viewpoint and lighting direction during face perception are commonplace across yaw and pitch axes and can result in dramatic image differences. We report two experiments that, for the first time, factorially investigate the combined effects of lighting and view angle on matching performance for unfamiliar faces. The use of three-dimensional head models allowed control of both lighting and viewpoint. We found viewpoint effects in the yaw axis with little to no effect of lighting. However, for rotations about the pitch axis, there were both …

Eeg Differences Between Eyes-Closed And Eyes-Open Resting Remain In Healthy Ageing, Robert J. Barry, Frances M. De Blasio

Faculty of Social Sciences - Papers (Archive)

In young adults and children, the eyes-closed (EC) resting state is one of low EEG arousal, with the change to eyes-open (EO) primarily involving an increase in arousal. We used this arousal perspective to interpret EC/EO differences in healthy young and older adults. EEG was recorded from 20 young (Mage=20.4years) and 20 gender-matched older (Mage=68.2years) right-handed adults during two 3min resting conditions; EC then EO. Older participants displayed less delta and theta, some reduction in alpha, and increased beta. Global activity in all bands reduced with opening the eyes, but did not differ with age, indicating that the energetics of …

Electroencephalogram Theta/Beta Ratio And Spectral Power Correlates Of Executive Functions In Children And Adolescents With Ad/Hd, Dawei Zhang, Hui Li, Zhanliang Wu, Qihua Zhao, Yan Song, Lu Liu, Qiujin Qian, Yufeng Wang, Steven J. Roodenrys, Stuart J. Johnstone, Frances M. De Blasio, Li Sun

Faculty of Social Sciences - Papers (Archive)

OBJECTIVE: The electroencephalogram (EEG) has been widely used in AD/HD research. The current study firstly aimed to replicate a recent trend related to EEG theta/beta ratio (TBR) in children and adolescents. Also, the study aimed to examine the value of resting EEG activity as biomarkers for executive function (EF) in participants with AD/HD. METHOD: Fifty-three participants with AD/HD and 37 healthy controls were recruited. Resting EEG was recorded with eyes closed. Participants with AD/HD additionally completed EF tasks via the Cambridge Neuropsychological Test Automated Battery. RESULTS: TBR did not differ between groups; however, TBR was positively correlated with inattentive symptoms …

A Brief Historical Perspective On The Advent Of Brain Oscillations In The Biological And Psychological Disciplines, Sirel Karakas, Robert J. Barry

Faculty of Social Sciences - Papers (Archive)

We aim to review the historical evolution that has led to the study of the brain (body)-mind relationship based on brain oscillations, to outline and illustrate the principles of neuro-oscillatory dynamics using research findings. The paper addresses the relevant developments in behavioral sciences after Wundt established the science of psychology, and developments in the neurosciences after alpha and gamma oscillations were discovered by Berger and Adrian, respectively. Basic neuroscientific studies have led to a number of principles: (1) spontaneous EEG is composed of a set of oscillatory components, (2) the brain responds with oscillatory activity, (3) poststimulus oscillatory activity is …

The Impact Of Interpretive And Reductive Front-Of-Pack Labels On Food Choice And Willingness To Pay, Zenobia Talati, Richard Norman, Simone Pettigrew, Bruce Neal, Bridget Kelly, Helen Dixon, Kylie Ball, Caroline Miller, Trevor Shilton

Faculty of Social Sciences - Papers (Archive)

Background: This study examined how front-of-pack labels and product healthfulness affect choice and willingness to pay across a range of foods. It was hypothesized that: (i) product choice and (ii) willingness to pay would be more aligned with product healthfulness when healthfulness was expressed through the Health Star Rating, followed by the Multiple Traffic Light, then the Daily Intake Guide, and (iii) the Nutrition Facts Panel would be viewed infrequently. Methods: Adults and children aged 10+ years (n = 2069) completed an online discrete choice task involving mock food packages. A 4 food type (cookies, corn flakes, pizza, yoghurt) x …

Randomized Controlled Trial And Economic Evaluation Of Nurse-Led Group Support For Young Mothers During Pregnancy And The First Year Postpartum Versus Usual Care, Jacqueline Barnes, Jane Stuart, Elizabeth Allen, Stavros Petrou, Joanna Sturgess, Jane Barlow, Garry Macdonald, Helen Spiby, Dipti Aistrop, Edward Melhuish, Sungwook Kim, Diana Elbourne

Faculty of Social Sciences - Papers (Archive)

Child maltreatment is a significant public health problem. Group Family Nurse Partnership (gFNP) is a new intervention for young, expectant mothers implemented successfully in pilot studies. This study was designed to determine the effectiveness and cost-effectiveness of gFNP in reducing risk factors for maltreatment with a potentially vulnerable population.

Anti-Lgbt Rights Campaigns And The Figure Of The Child, Scott J. Mckinnon

Faculty of Social Sciences - Papers (Archive)

Scott McKinnon contributes to our marital equality series by exploring the often relied-upon arguments regarding children, 'radicalisation' and education in campaigns against LGBT rights.

Results Of The First Steps Study: A Randomised Controlled Trial And Economic Evaluation Of The Group Family Nurse Partnership (Gfnp) Programme Compared With Usual Care In Improving Outcomes For High-Risk Mothers And Their Children And Preventing Abuse, Jacqueline Barnes, Jane Stuart, Elizabeth Allen, Stephen Petrou, Joanna Sturgess, Jane Barlow, Geraldine Macdonald, Helen Spiby, Dipti Aistrop, Edward Melhuish, Sungwook Kim, Joshua Pink, Jessica Datta, Diana Elbourne

Faculty of Social Sciences - Papers (Archive)

No abstract provided.

The Use Of A Virtual Online Debating Platform To Facilitate Student Discussion Of Potentially Polarising Topics, Paul Mcgreevy, Vicky Tzioumis, Christopher J. Degeling, Jane Johnson, Robert Brown, Mike Sands, Melissa Starling, Clive J. C Phillips

Faculty of Social Sciences - Papers (Archive)

The merits of students exchanging views through the so-called human continuum exercise (HCE) are well established. The current article describes the creation of the virtual human continuum (VHC), an online platform that facilitates the same teaching exercise. It also reports feedback on the VHC from veterinary science students (n = 38). First-year Doctor of Veterinary Medicine students at the University of Sydney, Australia, trialed the platform and provided feedback. Most students agreed or strongly agreed that the VHC offered: a non-threatening environment for discussing emotive and challenging issues; and an opportunity to see how other people form ideas. It also …

Eliminating Latent Tuberculosis In Low-Burden Settings: Are The Principal Beneficiaries To Be Disadvantaged Groups Or The Broader Population?, Christopher J. Degeling, Justin Denholm, Paul Mason, Ian Kerridge, Angus Dawson

Faculty of Social Sciences - Papers (Archive)

Tuberculosis (TB) remains a leading cause of morbidity and mortality worldwide, and the burdens of this disease continue to track prior disadvantage. In order to galvanise a coordinated global res ponse, WHO has recently launched the End TB Campaign that aims to eliminate TB by 2050. Key to this is the introduction of population screening programmes in low-burden settings to identify and treat people who have latent TB infection (LTBI). The defining features of LTBI are: that it is not an active disease but confers an increased risk of disease; the socially disadvantaged are those most in danger and uncertainty …

A Delphi Survey And Analysis Of Expert Perspectives On One Health In Australia, Christopher J. Degeling, Jane Johnson, Michael P. Ward, Andrew Wilson, Gwendolyn L. Gilbert

Faculty of Social Sciences - Papers (Archive)

One Health (OH) is an interdisciplinary approach aiming to achieve optimal health for humans, animals and their environments. Case reports and systematic reviews of success are emerging; however, discussion of barriers and enablers of cross-sectoral collaboration are rare. A four-phase mixed-method Delphi survey of Australian human and animal health practitioners and policymakers (n = 52) explored areas of consensus and disagreement over: (1) the operational definition of OH; (2) potential for cross-sectoral collaboration; and (3) key priorities for shaping the development of an OH response to significantly elevated zoonotic disease risk. Participants agreed OH is essential for effective infectious disease …

Primary Goals, Information-Giving And Men's Understanding: A Qualitative Study Of Australian And Uk Doctors' Varied Communication About Psa Screening, Kristen Pickles, Stacy M. Carter, Lucie Rychetnik, Kirsten Mccaffery, Vikki A. Entwistle

Faculty of Social Sciences - Papers (Archive)

Objectives (1) To characterise variation in general practitioners' (GPs') accounts of communicating with men about prostate cancer screening using the prostate-specific antigen (PSA) test, (2) to characterise GPs' reasons for communicating as they do and (3) to explain why and under what conditions GP communication approaches vary. Study design and setting A grounded theory study. We interviewed 69 GPs consulting in primary care practices in Australia (n=40) and the UK (n=29). Results GPs explained their communication practices in relation to their primary goals. In Australia, three different communication goals were reported: to encourage asymptomatic men to either have a PSA …

Are Motivational Signs To Increase Stair Use A Thing Of The Past? A Multi‐Building Study, Lina Engelen, Joanne Gale, Josephine Chau, Adrian E. Bauman

Faculty of Social Sciences - Papers (Archive)

Issue addressed Only half of Australia's adult population is sufficiently physical active. One method thought to increase incidental physical activity at work is the use of stair‐promoting interventions. Stairs are readily available and stair climbing is considered vigorous physical activity. Motivational signs have been extensively and effectively trialled to increase stair use, but are they suitable for contemporary populations? Methods Participants were occupants of three selected University of Sydney buildings using the elevators or stairs. Infrared people counters were installed to monitor stair and elevator use for 24 h/day during two baseline weeks, followed by two intervention weeks, where motivational …

Pacific Islands Field Education (Pife) 2016 Report, Jioji Ravulo

Faculty of Social Sciences - Papers (Archive)

We have successfully completed 4 years (2013 - 2016) of facilitating the Pacific Islands Field Education (PIFE) initiative, striving to achieve the following three key components: 1. Provide international learning opportunities for Western Sydney University students 2. Enhance social work education; including teaching, learning and research resources through University of the South Pacific (USP) 3. Promote the development and identity of professional Social Work across Oceania region. Within this active partnership with University of the South Pacific, the project has provided scope to develop ongoing relationships with community based services, whilst bolstering the manner in which social work education is …