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Articles 61 - 90 of 13916

Full-Text Articles in Social and Behavioral Sciences

Sustainability Of Identification And Response To Domestic Violence In Antenatal Care: The Sustain Study, Kelsey Hegarty, Jo Spangaro, Jane Koziol-Mclain, Jeannette Walsh, Amelia Lee, Minerva Kyei-Onanjiri, Robyn Matthews, Jodie Valpied, Jenny Chapman, Leesa Hooker, Elizabeth Mclindon, Kitty Novy, Kim Spurway Jan 2020

Sustainability Of Identification And Response To Domestic Violence In Antenatal Care: The Sustain Study, Kelsey Hegarty, Jo Spangaro, Jane Koziol-Mclain, Jeannette Walsh, Amelia Lee, Minerva Kyei-Onanjiri, Robyn Matthews, Jodie Valpied, Jenny Chapman, Leesa Hooker, Elizabeth Mclindon, Kitty Novy, Kim Spurway

Faculty of Social Sciences - Papers (Archive)

This project set out to understand and support the integration of evidence-based, effective screening, risk assessment and first-line response to domestic violence (DV) into the complex system of antenatal care. It built on existing resources and research to focus on women assessed as currently in "lower risk" situations, who are often not in contact with DV services but attended health services for pregnancy.


Beyond The Conference: Singing Our Ssong, Corinne Green, Michelle J. Eady, Marian Mccarthy, Ashley B. Akenson, Briony Supple, Jacinta C. Mckeon, James Cronin Jan 2020

Beyond The Conference: Singing Our Ssong, Corinne Green, Michelle J. Eady, Marian Mccarthy, Ashley B. Akenson, Briony Supple, Jacinta C. Mckeon, James Cronin

Faculty of Social Sciences - Papers (Archive)

The International Society for the Scholarship of Teaching and Learning (ISSOTL) annual conference presents an exciting opportunity to meet with international colleagues from diverse backgrounds and situations to commune on our common interest in the Scholarship of Teaching and Learning (SoTL). As with every ISSOTL conference, the enthusiasm for SoTL was palpable in Los Angeles in 2016. Rich discussions took place, networks were formed, and promises to keep in touch were made. Unfortunately, previous conference experiences have taught us that these good intentions often fall short once the conference bubble has burst and the reality of daily life sets in ...


Effects Of An Acute Physical Activity Break On Test Anxiety And Math Test Performance, Myrto Mavilidi, Kim Ouwehand, Nicholas Riley, Paul A. Chandler, Fred Paas Jan 2020

Effects Of An Acute Physical Activity Break On Test Anxiety And Math Test Performance, Myrto Mavilidi, Kim Ouwehand, Nicholas Riley, Paul A. Chandler, Fred Paas

Faculty of Social Sciences - Papers (Archive)

Background: Test anxiety has been found to negatively affect students' mental health and academic performance. A primary explanation for this is that anxiety‐related thoughts occupy working memory resources during testing that cannot be used for test‐related processes (such as information retrieval and problem‐solving). The present intervention study investigated whether physical activity could decrease anxiety levels and improve maths test performance in sixth‐grade children. Methods: Sixty‐eight children of 11-12 years from two primary schools in New South Wales, Australia were categorised as low or high anxious from their scores on a trait‐anxiety questionnaire. After this ...


Prospective Associations With Physiological, Psychosocial And Educational Outcomes Of Meeting Australian 24-Hour Movement Guidelines For The Early Years, Trina Hinkley, Anna Timperio, Amanda Watson, Rachel Duckham, Anthony D. Okely, Dylan P. Cliff, Alison Carver, Kylie Hesketh Jan 2020

Prospective Associations With Physiological, Psychosocial And Educational Outcomes Of Meeting Australian 24-Hour Movement Guidelines For The Early Years, Trina Hinkley, Anna Timperio, Amanda Watson, Rachel Duckham, Anthony D. Okely, Dylan P. Cliff, Alison Carver, Kylie Hesketh

Faculty of Social Sciences - Papers (Archive)

BACKGROUND: Several countries have released movement guidelines for children under 5 that incorporate guidelines for sleep, physical activity and sedentary behavior. This study examines prospective associations of preschool children's compliance with the 24-Hour Australian movement guidelines (sleep, physical activity, screen time) and physiological, psychosocial and educational outcomes during primary school. METHODS: Data were from the Healthy Active Preschool and Primary Years Study (Melbourne, Australia; n = 471; 3-5 years; 2008/9). Follow-ups occurred at 3 (2011/12; 6-8 years), 6 (2014/15; 9-11 years) and 7 (2016; 10-12 years) years post baseline. Multiple regression models assessed associations between compliance with ...


Fight For Freedom: New Research To Map Violence In The Forgotten Conflict In West Papua, Camellia B. Webb-Gannon, Jaime Swift, Michael Westaway, Nathan Wright Jan 2020

Fight For Freedom: New Research To Map Violence In The Forgotten Conflict In West Papua, Camellia B. Webb-Gannon, Jaime Swift, Michael Westaway, Nathan Wright

Faculty of Social Sciences - Papers (Archive)

Indonesia has recently indicated it is considering investigating the killings of hundreds of thousands of people in the 1965 "anti-communist" purge under authoritarian leader Suharto. If the inquiry goes ahead, it would mark a shift in the government's long-standing failure to address past atrocities. It is unclear if they will include other acts of brutality alleged to have been committed by the Indonesian regime in the troubled region of West Papua.


Environmental Influences On Children's Physical Activity In Early Childhood Education And Care, Karen L. Tonge, Rachel A. Jones, Anthony D. Okely Jan 2020

Environmental Influences On Children's Physical Activity In Early Childhood Education And Care, Karen L. Tonge, Rachel A. Jones, Anthony D. Okely

Faculty of Social Sciences - Papers (Archive)

Background: To examine the relationship between attributes of early childhood education and care (ECEC) settings and children's physical activity and sedentary behavior. Methods: Cross-sectional study involving 490 children aged 2-5 years from 11 ECECs. The ECEC routine, size of the outdoor environment, and time spent in the outdoor environment were calculated for each center. Children's physical activity and sedentary time were measured using accelerometers. Multivariate linear regressions were used to examine associations of the attributes of ECEC centers with the outcome variables, adjusting for the effects of center clustering and gender. Results: Children in ECECs that offered free ...


Schools Are Open During The Coronavirus Outbreak But Should I Voluntarily Keep My Kids Home Anyway, If I Can? We Asked 5 Experts, Sunanda Creagh, Allen C. Cheng, Christopher C. Blyth, Claire Hooker, Paul Andrew Kidson, Peter Collignon Jan 2020

Schools Are Open During The Coronavirus Outbreak But Should I Voluntarily Keep My Kids Home Anyway, If I Can? We Asked 5 Experts, Sunanda Creagh, Allen C. Cheng, Christopher C. Blyth, Claire Hooker, Paul Andrew Kidson, Peter Collignon

Faculty of Social Sciences - Papers (Archive)

We asked five experts to answer the question: schools are staying open but should I voluntarily keep my kids home anyway, if I can?


Effects Of Spatial Distance On The Effectiveness Of Mental And Physical Integration Strategies In Learning From Split-Attention Examples, Bjorn De Koning, Gertjan Rop, Fred Paas Jan 2020

Effects Of Spatial Distance On The Effectiveness Of Mental And Physical Integration Strategies In Learning From Split-Attention Examples, Bjorn De Koning, Gertjan Rop, Fred Paas

Faculty of Social Sciences - Papers (Archive)

Learning from spatially separated text and pictures is improved when learners are instructed to use a physical or mental integration strategy. This study investigated whether varying the spatial distance between text and pictures affects the effectiveness of physical and mental integration strategies. We hypothesized that a larger spatial distance would increase cognitive load and harm learning. Ninety-two university students studied the functioning of an electrical circuit from text and pictures that were presented at a small or large spatial distance from each other, while using a physical or mental integration strategy during learning. Results indicated that participants using the mental ...


How To Help Young Children Regulate Their Emotions And Behaviours During The Pandemic, Cathrine Marguerite Neilsen-Hewett, Steven J. Howard Jan 2020

How To Help Young Children Regulate Their Emotions And Behaviours During The Pandemic, Cathrine Marguerite Neilsen-Hewett, Steven J. Howard

Faculty of Social Sciences - Papers (Archive)

With governments around the world asking their citizens to avoid places, activities and gatherings to save lives, this just might be the largest ever international effort to self-regulate our actions against competing desires and impulses. To achieve this, we must overcome our desire to enjoy the sun and sand, go shopping or to the pub, and even embrace family and friends. Of course, it's not so easy for young children, who must forego activities they previously enjoyed and may be confused by contradictions - like being able to see friends at, but not after, school. But there are ways parents ...


Animal Geographies I: Hearing The Cry And Extending Beyond, Leah Maree Gibbs Jan 2020

Animal Geographies I: Hearing The Cry And Extending Beyond, Leah Maree Gibbs

Faculty of Social Sciences - Papers (Archive)

Research on animal geographies is burgeoning. This report identifies key themes emerging in the sub-discipline over the past two to three years. It begins with an overview of the growing empirical, conceptual and methodological diversity of the field. It then explores two themes, which seek, in turn, to look very closely at the animal and beyond it. The first theme incorporates efforts to attend to the lived experiences of animals and the nonhuman side of human-animal relations: to ‘hear the cry’ of the nonhuman. The second includes attempts to move beyond both the kinds of animals most commonly considered within ...


The Perceptions And Usage Of Alcohol And Other Drugs In Middle Eastern And Burmese Refugee Communities Across The Illawarra And Shoalhaven Region, Jioji Ravulo, Dianne Woods, Lance R. Barrie, Joseph Abdo Jan 2020

The Perceptions And Usage Of Alcohol And Other Drugs In Middle Eastern And Burmese Refugee Communities Across The Illawarra And Shoalhaven Region, Jioji Ravulo, Dianne Woods, Lance R. Barrie, Joseph Abdo

Faculty of Social Sciences - Papers (Archive)

People from a refugee background experience intersecting challenges which predisposes them to a heightened risk of alcohol and other drugs (AOD) related harms. Despite AOD service staff being conscious of increased risks regarding substance usage, there remains pivotal inextricable differences amongst the way cultures and subcultures conceptualise and relate to substance usage. This may be evident for refugee populations that have to navigate through the experiences of displacement, resettlement, and the acculturation process. Despite refugee populations being at risk for AOD harm, the services available for support remain under utilised. As a result, this can highlight discrepancies within the knowledge ...


Facilitators And Barriers To The Self-Management Of Copd: A Qualitative Study From Rural Nepal, Uday Yadav, Jane Lloyd, Hassan Hosseinzadeh, Kedar Baral, Sagar Dahal, Narendra Bhatta, Mark Harris Jan 2020

Facilitators And Barriers To The Self-Management Of Copd: A Qualitative Study From Rural Nepal, Uday Yadav, Jane Lloyd, Hassan Hosseinzadeh, Kedar Baral, Sagar Dahal, Narendra Bhatta, Mark Harris

Faculty of Social Sciences - Papers (Archive)

Author(s) (or their employer(s)) 2020. Objective: To understand the facilitators and barriers to the self-management of chronic obstructive pulmonary disease (COPD) in rural Nepal. Settings: Community and primary care centres in rural Nepal. Participants: A total of 14 participants (10 people with COPD and 4 health care providers) were interviewed. Primary and secondary outcome measure(s): People with COPD and healthcare provider's experience of COPD self-management in rural Nepal. Results: Facilitators and barriers affecting COPD self-management in Nepal operated at the patient-family, community and service provider levels. People with COPD were found to have a limited understanding ...


Methodological Challenges In Deliberative Empirical Ethics, Stacy M. Carter Jan 2020

Methodological Challenges In Deliberative Empirical Ethics, Stacy M. Carter

Faculty of Social Sciences - Papers (Archive)

No abstract provided.


Augmenting Cancer Registry Data With Health Survey Data With No Cases In Common: The Relationship Between Pre-Diagnosis Health Behaviour And Post-Diagnosis Survival In Oesophageal Cancer, Paul Fahey, Andrew Page, Glenn Stone, Thomas E. Astell-Burt Jan 2020

Augmenting Cancer Registry Data With Health Survey Data With No Cases In Common: The Relationship Between Pre-Diagnosis Health Behaviour And Post-Diagnosis Survival In Oesophageal Cancer, Paul Fahey, Andrew Page, Glenn Stone, Thomas E. Astell-Burt

Faculty of Social Sciences - Papers (Archive)

2020 The Author(s). Background: For epidemiological research, cancer registry datasets often need to be augmented with additional data. Data linkage is not feasible when there are no cases in common between data sets. We present a novel approach to augmenting cancer registry data by imputing pre-diagnosis health behaviour and estimating its relationship with post-diagnosis survival time. Methods: Six measures of pre-diagnosis health behaviours (focussing on tobacco smoking, 'at risk' alcohol consumption, overweight and exercise) were imputed for 28,000 cancer registry data records of US oesophageal cancers using cold deck imputation from an unrelated health behaviour dataset. Each data ...


A Stepped Wedge Trial Of Efficacy And Scalability Of A Virtual Clinical Pharmacy Service (Vcps) In Rural And Remote Nsw Health Facilities, Julaine M. Allan, Shannon Nott, Brett Chambers, Ged Hawthorn, Alice Munro, Chris Doran, Christopher Oldmeadow, Clare Coleman, Teesta Saksena Jan 2020

A Stepped Wedge Trial Of Efficacy And Scalability Of A Virtual Clinical Pharmacy Service (Vcps) In Rural And Remote Nsw Health Facilities, Julaine M. Allan, Shannon Nott, Brett Chambers, Ged Hawthorn, Alice Munro, Chris Doran, Christopher Oldmeadow, Clare Coleman, Teesta Saksena

Faculty of Social Sciences - Papers (Archive)

2020 The Author(s). Background: Medication errors are a leading cause of mortality and morbidity. Clinical pharmacy services provided in hospital can reduce medication errors and medication related harm. However, few rural or remote hospitals in Australia have a clinical pharmacy service. This study will evaluate a virtual clinical pharmacy service (VCPS) provided via telehealth to eight rural and remote hospitals in NSW, Australia. Methods: A stepped wedge cluster randomised trial design will use routinely collected data from patients' electronic medical records (n = 2080) to evaluate the VCPS at eight facilities. The sequence of steps is randomised, allowing for control ...


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 more ...


Is Another Huge And Costly Road Project Really Sydney's Best Option Right Now?, Philip G. Laird Jan 2020

Is Another Huge And Costly Road Project Really Sydney's Best Option Right Now?, Philip G. Laird

Faculty of Engineering and Information Sciences - Papers: Part B

The New South Wales government has focused on delivering more motorways and rail links for Sydney, along with main roads in regional NSW, since the Coalition won office in 2011. The biggest of these, WestConnex, is still being built. Plans for yet another major motorway, the Western Harbour Tunnel and Beaches Link, are well advanced.


Pricing Of Barrier Options On Underlying Assets With Jump-Diffusion Dynamics: A Mellin Transform Approach, Marianito R. Rodrigo Jan 2020

Pricing Of Barrier Options On Underlying Assets With Jump-Diffusion Dynamics: A Mellin Transform Approach, Marianito R. Rodrigo

Faculty of Engineering and Information Sciences - Papers: Part B

A barrier option is an exotic path-dependent option contract where the right to buy or sell is activated or extinguished when the underlying asset reaches a certain barrier price during the lifetime of the contract. In this article we use a Mellin transform approach to derive exact pricing formulas for barrier options with general payoffs and exponential barriers on underlying assets that have jump-diffusion dynamics. With the same approach we also price barrier options on underlying futures contracts.


Role Of Optimization Algorithms Based Fuzzy Controller In Achieving Induction Motor Performance Enhancement, M Hannan, Jamal Ali, M J. Hossain, A Mohamed, Pin Ker, T Indra, M Mansor, Aini Hussain, Kashem M. Muttaqi, Z Dong Jan 2020

Role Of Optimization Algorithms Based Fuzzy Controller In Achieving Induction Motor Performance Enhancement, M Hannan, Jamal Ali, M J. Hossain, A Mohamed, Pin Ker, T Indra, M Mansor, Aini Hussain, Kashem M. Muttaqi, Z Dong

Faculty of Engineering and Information Sciences - Papers: Part B

© 2020, The Author(s). Three-phase induction motors (TIMs) are widely used for machines in industrial operations. As an accurate and robust controller, fuzzy logic controller (FLC) is crucial in designing TIMs control systems. The performance of FLC highly depends on the membership function (MF) variables, which are evaluated by heuristic approaches, leading to a high processing time. To address these issues, optimisation algorithms for TIMs have received increasing interest among researchers and industrialists. Here, we present an advanced and efficient quantum-inspired lightning search algorithm (QLSA) to avoid exhaustive conventional heuristic procedures when obtaining MFs. The accuracy of the QLSA based ...


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 then ...


A Laboratory Study On Fluidization Of Subgrade Under Cyclic Train Loading, Buddhima Indraratna, Mandeep Singh, Thanh Trung Nguyen, Serge Leroueil, Aruni Lakmali Abeywickrama Bamunusing Kankanamge, Richard B. Kelly, Tim Neville Jan 2020

A Laboratory Study On Fluidization Of Subgrade Under Cyclic Train Loading, Buddhima Indraratna, Mandeep Singh, Thanh Trung Nguyen, Serge Leroueil, Aruni Lakmali Abeywickrama Bamunusing Kankanamge, Richard B. Kelly, Tim Neville

Faculty of Engineering and Information Sciences - Papers: Part B

A long term issue that has hampered the efficient operation of heavy haul tracks is the migration of fluidized fines from the shallow soft subgrade to the overlying ballast, i.e., mud pumping. This paper presents a series of undrained cyclic triaxial tests, where realistic cyclic loading conditions were simulated at low confining pressure that is typical of shallow subgrade beneath a ballast track. Subgrade soil specimens with a low plasticity index collected from a field site with recent history of mud pumping were tested at frequencies from 1.0 to 5.0 Hz and a cyclic stress ratio (CSR ...


Dtn And Non-Dtn Routing Protocols For Inter-Cubesat Communications: A Comprehensive Survey, Mohamed Atef Madni, Saeid Iranmanesh, Raad Raad Jan 2020

Dtn And Non-Dtn Routing Protocols For Inter-Cubesat Communications: A Comprehensive Survey, Mohamed Atef Madni, Saeid Iranmanesh, Raad Raad

Faculty of Engineering and Information Sciences - Papers: Part B

CubeSats, which are limited by size and mass, have limited functionality. These miniaturised satellites suffer from a low power budget, short radio range, low transmission speeds, and limited data storage capacity. Regardless of these limitations, CubeSats have been deployed to carry out many research missions, such as gravity mapping and the tracking of forest fires. One method of increasing their functionality and reducing their limitations is to form CubeSat networks, or swarms, where many CubeSats work together to carry out a mission. Nevertheless, the network might have intermittent connectivity and, accordingly, data communication becomes challenging in such a disjointed network ...


Numerical Modelling Of Track Behavior Capturing Particle Breakage Under Dynamic Loading, Ngoc Trung Ngo, Buddhima Indraratna Jan 2020

Numerical Modelling Of Track Behavior Capturing Particle Breakage Under Dynamic Loading, Ngoc Trung Ngo, Buddhima Indraratna

Faculty of Engineering and Information Sciences - Papers: Part B

No abstract provided.


A Blockchain Based System For Safe Vaccine Supply And Supervision, Binbin Yong, Jun Shen, Xin Liu, Fucun Li, Huaming Chen, Qingguo Zhou Jan 2020

A Blockchain Based System For Safe Vaccine Supply And Supervision, Binbin Yong, Jun Shen, Xin Liu, Fucun Li, Huaming Chen, Qingguo Zhou

Faculty of Engineering and Information Sciences - Papers: Part B

Immunization is an indispensable mechanism for preventing infectious diseases in modern society, and vaccine safety is closely related to public health and national security. However, issues such as vaccine expiration and vaccine record fraud are still widespread in vaccine supply chains. Therefore, an effective management system for the supervision of vaccine supply chains is urgently required. As the next generation of core technology after the Internet, blockchain is designed to build trust mechanisms that can change current information management methods. Meanwhile, the development of machine learning technologies provides additional ways to analyze the data in information management systems. The main ...


From Ideal To Reality: Segmentation, Annotation, And Recommendation, The Vital Trajectory Of Intelligent Micro Learning, Jiayin Lin, Geng Sun, Tingru Cui, Jun Shen, Dongming Xu, Ghassan Beydoun, Ping Yu, David Pritchard, Li Li, Shiping Chen Jan 2020

From Ideal To Reality: Segmentation, Annotation, And Recommendation, The Vital Trajectory Of Intelligent Micro Learning, Jiayin Lin, Geng Sun, Tingru Cui, Jun Shen, Dongming Xu, Ghassan Beydoun, Ping Yu, David Pritchard, Li Li, Shiping Chen

Faculty of Engineering and Information Sciences - Papers: Part B

The soaring development of Web technologies and mobile devices has blurred time-space boundaries of people’s daily activities. Such development together with the life-long learning requirement give birth to a new learning style, micro learning. Micro learning aims to effectively utilize learners’ fragmented time to carry out personalized learning activities through online education resources. The whole workflow of a micro learning system can be separated into three processing stages: micro learning material generation, learning materials annotation and personalized learning materials delivery. Our micro learning framework is firstly introduced in this paper from a higher perspective. Then we will review representative ...


Beam-Based Analog Self-Interference Cancellation In Full-Duplex Mimo Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y. Jay Guo Jan 2020

Beam-Based Analog Self-Interference Cancellation In Full-Duplex Mimo Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y. Jay Guo

Faculty of Engineering and Information Sciences - Papers: Part B

Self-interference (SI) cancellation for full-duplex (FD) multiple input multiple output (MIMO) systems is challenging due to both hardware and signal processing complexity. In this paper, a beam-based adaptive filter structure with analog least mean square (ALMS) loops is proposed to significantly reduce the complexity of SI cancellation for FD MIMO systems. With this structure, the number of adaptive filters required for SI cancellation scales linearly with the number of transmit beams rather than quadratically with the number of antennas. Furthermore, to avoid additional transmit chains used to upconvert the beam signals to generate reference signals for the ALMS loops, a ...


Thermal Features Vis A Vis Strain Features Of Fracturing Process In Jointed Rock Layer Under Concentrated Load, Haiqing Yang, Bolong Liu, Shivakumar Karekal Jan 2020

Thermal Features Vis A Vis Strain Features Of Fracturing Process In Jointed Rock Layer Under Concentrated Load, Haiqing Yang, Bolong Liu, Shivakumar Karekal

Faculty of Engineering and Information Sciences - Papers: Part B

In case of earthquakes and crustal movement, the concentration of impounding load over a large region of crust can cause disturbances to the stratum. In order to quantitatively investigate crack initiation, propagation and coalescence processes of jointed stratum based on thermal variations caused by concentrated mechanical loading, a series of indention tests were performed on granite specimens. In the experiment, fracture process and resulting infrared radiation fields of specimens were respectively recorded by synchronized digital image correlation system and infrared camera. Then, thermal characteristics of mixed shear-tensile and tensile conical crack were analyzed. Experimental results indicate that the highlighted temperature ...


Lane Work-Schedule Of Toll Station Based On Queuing Theory And Pso-Lstm Model, Peng Wang, Jiandong Zhao, Yuan Gao, Miguel Sotelo, Zhixiong Li Jan 2020

Lane Work-Schedule Of Toll Station Based On Queuing Theory And Pso-Lstm Model, Peng Wang, Jiandong Zhao, Yuan Gao, Miguel Sotelo, Zhixiong Li

Faculty of Engineering and Information Sciences - Papers: Part B

© 2013 IEEE. A reasonable lane work-schedule in each time period can not only guarantee the traffic efficiency of toll stations, but also reduce the operating cost of toll stations. This paper proposes a comprehensive solution for lane work plan. Firstly, the average queue length is selected as a good index for measuring the congestion of toll station. And then, based on the queuing theory, the service level of toll station is divided into four levels according to the relationship between the average queue length and traffic capacity. Secondly, based on the toll data, a toll station congestion prediction model is ...


Performance Of Ballast Influenced By Deformation And Degradation: Laboratory Testing And Numerical Modeling, Buddhima Indraratna, Ngoc Trung Ngo, Cholachat Rujikiatkamjorn Jan 2020

Performance Of Ballast Influenced By Deformation And Degradation: Laboratory Testing And Numerical Modeling, Buddhima Indraratna, Ngoc Trung Ngo, Cholachat Rujikiatkamjorn

Faculty of Engineering and Information Sciences - Papers: Part B

This paper presents a study on the deformation and degradation responses of railway ballast using large-scale laboratory testing and computational modeling approaches. A series of large-scale triaxial tests were carried out to investigate the ballast breakage responses under cyclic train loading subjected to varying frequencies, f=10-40  Hz. The role of recycled rubber energy-absorbing mats (REAMs) on reducing ballast breakage was also examined. Laboratory test results show that the ballast experiences significant degradation (breakage) and deformation, while the inclusion of REAMs can reduce the ballast breakage up to about 35%. Numerical modeling using the coupled discrete-continuum approach [coupled discrete-element method-finite-difference ...


The Variable Resonance Magnetorheological Pendulum Tuned Mass Damper: Mathematical Modelling And Seismic Experimental Studies, Matthew Christie, Shuaishuai Sun, Lei Deng, Donghong Ning, Haiping Du, Shiwu Zhang, Weihua Li Jan 2020

The Variable Resonance Magnetorheological Pendulum Tuned Mass Damper: Mathematical Modelling And Seismic Experimental Studies, Matthew Christie, Shuaishuai Sun, Lei Deng, Donghong Ning, Haiping Du, Shiwu Zhang, Weihua Li

Faculty of Engineering and Information Sciences - Papers: Part B

Tuned mass damper technologies are progressively advancing through innovative application of smart materials, facilitating more versatile infrastructure protection. During seismic events, primarily encountered surrounding fault lines, highrise buildings and other civil structures can suffer catastrophic failures if not adequately protected. Where traditional passive structural protection may mitigate such damage, adaptive systems which provide controllable vibration attenuation across a wide range of excitation frequencies have seen growth in use, overcoming the challenges resulting from unpredictable seismic spectrums. As a robust solution to this problem, this article presents and analyses a variable resonance magnetorheological-fluid-based pendulum tuned mass damper which employs a rotary ...