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Articles 571 - 582 of 582
Full-Text Articles in Social and Behavioral Sciences
Use Of Shock Mats For Mitigating Degradation Of Railroad Ballast, B Indraratna, S Nimbalkar, S K. Navaratnarajah, C Rujikiatkamjorn, T Neville
Use Of Shock Mats For Mitigating Degradation Of Railroad Ballast, B Indraratna, S Nimbalkar, S K. Navaratnarajah, C Rujikiatkamjorn, T Neville
Faculty of Engineering and Information Sciences - Papers: Part A
In Australia, increasing demand for High Speed Rail (HSR) and heavier freight transport is a technical and economic challenge for practicing engineers, designers and researchers. Because of this increased train speed and axle load, high undue stresses are transferred to the ballast and underlying formation. Ballast degradation is a major factor affecting track longevity and stability. Use of energy absorbing shock mats to reduce noise and vibrations is an established practice. The shock mat is sometimes called as Under Sleeper Pad (USP) and Under Ballast Mat (UBM) depending upon their placement position. However, studies to analyse their effectiveness in minimising …
Multi-Polarization Through-The-Wall Radar Imaging Using Joint Bayesian Compressed Sensing, Abdesselam Bouzerdoum, Fok Hing Chi Tivive, Van Ha Tang
Multi-Polarization Through-The-Wall Radar Imaging Using Joint Bayesian Compressed Sensing, Abdesselam Bouzerdoum, Fok Hing Chi Tivive, Van Ha Tang
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents a new image formation method for multi-polarization through-the-wall radar imaging. The proposed method combines wall clutter mitigation and scene reconstruction in a unified framework using multitask Bayesian compressed sensing. First, the radar signals are jointly recovered using Bayesian compressed sensing in the wavelet domain. Then, a subspace projection method is employed to mitigate the front wall reflections. This is followed by principal component analysis, which is used to compress the remaining wavelet coefficients and remove noise. A linear model is developed which relates the compressed wavelet coefficients directly to the image of the scene. For scene reconstruction, …
Group Self-Build Housing: The Potential To Deliver Zero Carbon Homes, Emma Elizabeth Heffernan, Wei Pan, Xi Liang, Pieter De Wilde
Group Self-Build Housing: The Potential To Deliver Zero Carbon Homes, Emma Elizabeth Heffernan, Wei Pan, Xi Liang, Pieter De Wilde
Faculty of Engineering and Information Sciences - Papers: Part A
The UK Government has stated that self-build homes are likely to be more affordable, energy efficient and innovative than standard market housing. However, there is little academic research to support these assertions. In addressing this gap in knowledge, this paper reviews the literature relating to the pros and cons of self-build housing, with a focus on energy efficiency. The paper explores expert opinions on the suitability of self-build housing as a development model for the delivery of zero carbon homes. The research employed a Policy Delphi study using three rounds of questionnaire surveys to gather data iteratively from a heterogeneous …
Real-Time Task Attributes And Temporal Constraints, Amir Ashamalla, Ghassan Beydoun, N Paramesh
Real-Time Task Attributes And Temporal Constraints, Amir Ashamalla, Ghassan Beydoun, N Paramesh
Faculty of Engineering and Information Sciences - Papers: Part A
Real-time tasks need attributes for monitoring their execution and performing recovery actions in case of failures. Temporal constraints are a class of real-time task attributes where the constraints relate the status of the task to temporal entities. Violating temporal constraints can produce consequences of unknown severity. This paper is part of our on-going research on real-time multi agent systems constraints. We discuss the importance of temporal constraints and present a task model that explicitly represents temporal constraints. We also present our preliminary results from our initial implementation in the domain of Meeting Schedules Management involving multiple users assisted by agents.
Ontological Meta-Analysis And Synthesis Of Hipaa, Arkalgud Ramaprasad, Thant Syn, Khin Than Win
Ontological Meta-Analysis And Synthesis Of Hipaa, Arkalgud Ramaprasad, Thant Syn, Khin Than Win
Faculty of Engineering and Information Sciences - Papers: Part A
We present ontological meta-analysis and synthesis of HIPAA (Health Insurance Portability and Accountability Act) as a method for reviewing, mapping, and visualizing the research literature in the domain cumulatively, logically, systematically, and systemically. The method will highlight the domain's bright spots which are heavily emphasized, the light spots which are lightly emphasized, the blind spots which have been overlooked, and the blank spots which may never be emphasized. It will highlight the biases and asymmetries in the domain's research; the research can then be realigned to make it stronger and more effective. We present an ontology for HIPAA, map the …
Task-Basedwireless Mobile Agents Search And Deployment For Ad Hoc Network Establishment In Disaster Environments, Xing Su, Minjie Zhang, Quan Bai
Task-Basedwireless Mobile Agents Search And Deployment For Ad Hoc Network Establishment In Disaster Environments, Xing Su, Minjie Zhang, Quan Bai
Faculty of Engineering and Information Sciences - Papers: Part A
In disaster environments, due to the destruction of local communication infrastructures, wireless mobile agents (robots) are employed to search and deploy to establish ad hoc networks. With the guidance of the network, first responders can efficiently perform tasks in disaster environments. However, due to the uncertainties and complexities of disaster environments and the limited capabilities of wirelessmobile agents, it is challenging to apply wireless mobile agents to disaster environments in both theory and practice. To this end, a task-based wireless mobile agents search and deployment approach is proposed for ad hoc network establishment in disaster environments. The proposed approach consists …
Variation Of Poincare Recurrence Times In Discrete Dynamical Systems, Mimoon Ismael, Rodney Nillsen, Graham H. Williams
Variation Of Poincare Recurrence Times In Discrete Dynamical Systems, Mimoon Ismael, Rodney Nillsen, Graham H. Williams
Faculty of Engineering and Information Sciences - Papers: Part A
This paper is concerned with the variation and standard deviation of recurrence times in discrete dynamical systems.
Learning Diagnostic Diagrams In Transport-Based Data-Collection Systems, Vu Tran, Peter W. Eklund, Christopher David Cook
Learning Diagnostic Diagrams In Transport-Based Data-Collection Systems, Vu Tran, Peter W. Eklund, Christopher David Cook
Faculty of Engineering and Information Sciences - Papers: Part A
Insights about service improvement in a transit network can be gained by studying transit service reliability. In this paper, a general procedure for constructing a transit service reliability diagnostic (Tsrd) diagram based on a Bayesian network is proposed to automatically build a behavioural model from Automatic Vehicle Location (AVL) and Automatic Passenger Counters (APC) data. Our purpose is to discover the variability of transit service attributes and their effects on traveller behaviour. A Tsrd diagram describes and helps to analyse factors affecting public transport by combining domain knowledge with statistical data.
Progressive Mode-Seeking On Graphs For Sparse Feature Matching, Chao Wang, Lei Wang, Lingqiao Liu
Progressive Mode-Seeking On Graphs For Sparse Feature Matching, Chao Wang, Lei Wang, Lingqiao Liu
Faculty of Engineering and Information Sciences - Papers: Part A
Sparse feature matching poses three challenges to graph-based methods: (1) the combinatorial nature makes the number of possible matches huge; (2) most possible matches might be outliers; (3) high computational complexity is often incurred. In this paper, to resolve these issues, we propose a simple, yet surprisingly effective approach to explore the huge matching space in order to significantly boost true matches while avoiding outliers. The key idea is to perform mode-seeking on graphs progressively based on our proposed guided graph density. We further design a density-aware sampling technique to considerably accelerate mode-seeking. Experimental study on various benchmark data sets …
Rapid Assessment Of Bilateral Cochlear Implantation For Children In Kazakhstan, Lyazzat Kosherbayeva, David M. Hailey, Laura Kozhageldiyeva
Rapid Assessment Of Bilateral Cochlear Implantation For Children In Kazakhstan, Lyazzat Kosherbayeva, David M. Hailey, Laura Kozhageldiyeva
Faculty of Engineering and Information Sciences - Papers: Part A
Objectives: The aim of this study was to evaluate the effectiveness of bilateral cochlear implantation (CI) compared with unilateral CI for deaf children in the context of the Republic of Kazakhstan health system. Methods. A literature search was conducted, using the PubMed, Cochrane, and Embase data bases for studies that compared the effectiveness of bilateral and unilateral CI in children. The search included English language, publications from 2002-2012. Two reviewers independently evaluated all relevant studies. Administrative data relevant to CI in Kazakhstan were obtained from the Ministry of Health. Results: Three relevant systematic reviews and an health technology assessment report …
Silicon Strip Detector For Quality Assurance In Synchrotron Microbeam Radiation Therapy, Pauline Fournier, Iwan Cornelius, Marco Petasecca, Elke Brauer-Krisch, Herwig Requardt, Andrew Dipuglia, N Roberts, Christopher Hall, Andrew W. Stevenson, Anatoly B. Rosenfeld
Silicon Strip Detector For Quality Assurance In Synchrotron Microbeam Radiation Therapy, Pauline Fournier, Iwan Cornelius, Marco Petasecca, Elke Brauer-Krisch, Herwig Requardt, Andrew Dipuglia, N Roberts, Christopher Hall, Andrew W. Stevenson, Anatoly B. Rosenfeld
Faculty of Engineering and Information Sciences - Papers: Part A
Abstract of an oral communication that presented at the 53es Journées Scientifiques de la Société Française de Physique Médicale, 4-6 June 2014, Deauville, France.
Nonlinear Response Of Laterally Loaded Rigid Piles In Sand, Hongyu Qin, Wei Dong Guo
Nonlinear Response Of Laterally Loaded Rigid Piles In Sand, Hongyu Qin, Wei Dong Guo
Faculty of Engineering and Information Sciences - Papers: Part A
This paper investigates nonlinear response of 51 laterally loaded rigid piles in sand. Measured response of each pile test was used to deduce input parameters of modulus of subgrade reaction and the gradient of the linear limiting force profile using elastic-plastic solutions. Normalised load - displacement and/or moment - rotation curves and in some cases bending moment and displacement distributions with depth are provided for all the pile tests, to show the effect of load eccentricity on the nonlinear pile response and pile capacity. The values of modulus of subgrade reaction and the gradient of the linear limiting force profile …