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Articles 1771 - 1800 of 2936
Full-Text Articles in Social and Behavioral Sciences
A Micro Deep Drawing Of Arb Processed Aluminium Foil Aa1235, Syamsul Hadi, A Kiet Tieu, Cheng Lu, Hongtao Zhu
A Micro Deep Drawing Of Arb Processed Aluminium Foil Aa1235, Syamsul Hadi, A Kiet Tieu, Cheng Lu, Hongtao Zhu
Faculty of Engineering and Information Sciences - Papers: Part A
The flow stress of AA1235 aluminium series-H14 material of 16 to 300 μm thickness has been determined here for the first time which showed the stress reduced significantly with thickness. A stress-strain relationship has been determined as a function of the thickness and grain size. A limiting drawing ratio (LDR) of 2.003 was achieved by a subsequent heat treatment of accumulative roll bonded (ARB) materials before the micro-cup drawing. The cup was successfully formed as the combined process has reduced the planar anisotropy, increased the normal anisotropy and improved the formability of a cup.
On The Residual Energy Toughness Of Prestressed Concrete Sleepers In Railway Track Structures Subjected To Repeated Impact Loads, Sakdirat Kaewunruen, Alexander Remennikov
On The Residual Energy Toughness Of Prestressed Concrete Sleepers In Railway Track Structures Subjected To Repeated Impact Loads, Sakdirat Kaewunruen, Alexander Remennikov
Faculty of Engineering and Information Sciences - Papers: Part A
Installed as the crosstie beam support in railway track systems, the prestressed concrete sleepers (or railroad ties) are designed in order to carry and transfer the wheel loads from the rails to the ground. It is nowadays best known that railway tracks are subject to the impact loading conditions, which are attributable to the train operations with either wheel or rail abnormalities such as flat wheels, dipped rails, etc. These loads are of very high magnitude but short duration, as well as there exists the potential of repeated load experience during the design life of the prestressed concrete sleepers. These …
A Study Of Current Maintenance Strategies And The Reliability Of Critical Medical Equipment In Hospitals In Relation To Patient Outcomes, Khelood Mkalaf, Peter Gibson, John Flanagan
A Study Of Current Maintenance Strategies And The Reliability Of Critical Medical Equipment In Hospitals In Relation To Patient Outcomes, Khelood Mkalaf, Peter Gibson, John Flanagan
Faculty of Engineering and Information Sciences - Papers: Part A
This study investigates the relationship between the reliability of critical medical equipment (CME) and the effectiveness of CME maintenance management strategies in relation to patient outcomes in 84 public hospitals of a top 20 OECD country. The work has examined the effectiveness of CME maintenance management strategies used by the public hospital system of a large state run health organization. The conceptual framework was designed to examine the significance of the relationship between six variables: (1) types of maintenance management strategies, (2) maintenance services, (3) maintenance practice, (4) medical equipment reliability, (5) maintenance costs and (6) patient outcomes. The results …
Privacy-Enhanced Keyword Search In Clouds, Miao Zhou, Yi Mu, Willy Susilo, Man Ho Allen Au
Privacy-Enhanced Keyword Search In Clouds, Miao Zhou, Yi Mu, Willy Susilo, Man Ho Allen Au
Faculty of Engineering and Information Sciences - Papers: Part A
The advent of cloud computing has dramatically changed the IT scene, as it offers cost savings and improvements to major operations. Nevertheless, the major obstacle relies on the effort on how to secure sensitive data files that are outsourced to the cloud environment. To ensure confidentiality, the sensitive data are usually encrypted prior to being outsourced. Nevertheless, effective data utilization remains a challenging task and there is a clear need for a secure and efficient searching mechanism over the encrypted data in the cloud, to increase the us-ability of the secure cloud environment. Unfortunately, existing work in the area of …
Electro-Tactile Feedback For Tele-Operation Of A Mobile Robot, Daniel Pamungkas, Koren Ward
Electro-Tactile Feedback For Tele-Operation Of A Mobile Robot, Daniel Pamungkas, Koren Ward
Faculty of Engineering and Information Sciences - Papers: Part A
It is well known that haptic feedback can facilitate the tele-operation of a remotely controlled robot by providing the user with intuitive tactile and/or force sensations from the robot's interactions with the environment. However, such mechanical haptic feedback systems can be complex, cumbersome, costly and application specific. This paper presents a novel tele-operation haptic feedback system that overcomes many of these limitations by providing electro-tactile feedback to the operator via wireless electrodes placed on the operator's skin. We show that this form feedback can provide a viable substitute for force and tactile feedback systems without the need for mechanical linkages …
Efficient And Dynamic Key Management For Multiple Identities In Identity-Based Systems, Hua Guo, Chang Xu, Zhoujun Li, Yanqing Yao, Yi Mu
Efficient And Dynamic Key Management For Multiple Identities In Identity-Based Systems, Hua Guo, Chang Xu, Zhoujun Li, Yanqing Yao, Yi Mu
Faculty of Engineering and Information Sciences - Papers: Part A
The traditional identity-based cryptography requires a user, who holds multiple identities, to hold multiple private keys, where each private key is associated with an identity. Managing multiple private/public keys is a heavy burden to a user due to key management and storage. The recent advancement of identity-based cryptography allow a single private key to map multiple public keys (identities); therefore the private key management is simplified. Unfortunately, the existing schemes capturing this feature do not allow dynamic changes of identities and have a large data size proportional to the number of the associated identities. To overcome these problems, in this …
Detection Of Crack Growth In Rail Steel Using Acoustic Emission, Andrii Kostryzhev, C L. Davis, C Roberts
Detection Of Crack Growth In Rail Steel Using Acoustic Emission, Andrii Kostryzhev, C L. Davis, C Roberts
Faculty of Engineering and Information Sciences - Papers: Part A
Increased traffic speeds and axle loads on modern railways enhance rail track degradation. To eliminate track failure due to rail defects, a condition monitoring system requires methods for the early detection of defects which grow in service. Acoustic emission (AE) monitoring is the only non-destructive technique which might be applied online to study the defect growth under traffic loading. However, a high level of traffic noise and a limited signal from crack growth, especially at low crack growth rates, significantly complicate the AE signal analysis. In the present work, the AE monitoring of rail steel fatigue was carried out in …
Total, Elastic, And Inelastic Cross Sections For Positron And Electron Collisions With Tetrahydrofuran, Luca Chiari, Emma Anderson, Wade Tattersall, J R. Machacek, Prasanga Palihawadana, Casten Makochekanwa, James P. Sullivan, Gustavo Garcia, Francisco Blanco, R P. Mceachran, M J. Brunger, Stephen J. Buckman
Total, Elastic, And Inelastic Cross Sections For Positron And Electron Collisions With Tetrahydrofuran, Luca Chiari, Emma Anderson, Wade Tattersall, J R. Machacek, Prasanga Palihawadana, Casten Makochekanwa, James P. Sullivan, Gustavo Garcia, Francisco Blanco, R P. Mceachran, M J. Brunger, Stephen J. Buckman
Faculty of Engineering and Information Sciences - Papers: Part A
We present total, elastic, and inelastic cross sections for positron and electron scattering from tetrahydrofuran (THF) in the energy range between 1 and 5000 eV. Total cross sections (TCS), positronium formation cross sections, the summed inelastic integral cross sections (ICS) for electronic excitations and direct ionization, as well as elastic differential cross sections (DCS) at selected incident energies, have been measured for positron collisions with THF. The positron beam used to carry out these experiments had an energy resolution in the range 40-100 meV (full-width at half-maximum). We also present TCS results for positron and electron scattering from THF computed …
Coupling Granular Activated Carbon Adsorption With Membrane Bioreactor Treatment For Trace Organic Contaminant Removal: Breakthrough Behaviour Of Persistent And Hydrophilic Compounds, Luong N. Nguyen, Faisal I. Hai, William E. Price, Jinguo Kang, Long D. Nghiem
Coupling Granular Activated Carbon Adsorption With Membrane Bioreactor Treatment For Trace Organic Contaminant Removal: Breakthrough Behaviour Of Persistent And Hydrophilic Compounds, Luong N. Nguyen, Faisal I. Hai, William E. Price, Jinguo Kang, Long D. Nghiem
Faculty of Engineering and Information Sciences - Papers: Part A
This study investigated the removal of trace organic contaminants by a combined membrane bioreactor - granular activated carbon (MBR-GAC) system over a period of 196 days. Of the 22 compounds investigated here, all six hydrophilic compounds with electron-withdrawing functional groups (i.e., metronidazole, carbamazepine, ketoprofen, naproxen, fenoprop and diclofenac) exhibited very low removal efficiency by MBR-only treatment. GAC post-treatment initially complemented MBR treatment very well; however, a compound-specific gradual deterioration of the removal of the above-mentioned problematic compounds was noted. While a 20% breakthrough of all four negatively charged compounds namely ketoprofen, naproxen, fenoprop and diclofenac occurred within 1000-3000 bed volumes …
Ultrafast Charge And Discharge Biscrolled Yarn Supercapacitors For Textiles And Microdevices, Jae Ah Lee, Min-Kyoon Shin, Shi Hyeong Kim, Hyun U. Cho, Geoffrey Maxwell Spinks, Gordon G. Wallace, Marcio D. Lima, Xavier Lepro, Mikhail E. Kozlov, Ray H. Baughman, Seon Jeong Kim
Ultrafast Charge And Discharge Biscrolled Yarn Supercapacitors For Textiles And Microdevices, Jae Ah Lee, Min-Kyoon Shin, Shi Hyeong Kim, Hyun U. Cho, Geoffrey Maxwell Spinks, Gordon G. Wallace, Marcio D. Lima, Xavier Lepro, Mikhail E. Kozlov, Ray H. Baughman, Seon Jeong Kim
Faculty of Engineering and Information Sciences - Papers: Part A
Flexible, wearable, implantable and easily reconfigurable supercapacitors delivering high energy and power densities are needed for electronic devices. Here we demonstrate weavable, sewable, knottable and braidable yarns that function as high performance electrodes of redox supercapacitors. A novel technology, gradient biscrolling, provides fastion-transport yarn in which hundreds of layers of conducting-polymer-infiltrated carbon nanotube sheet are scrolled into similar to 20 mu m diameter yarn. Plying the biscrolled yarn with a metal wire current collector increases power generation capabilities. The volumetric capacitance is high (up to similar to 179 Fcm(-3)) and the discharge current of the plied yarn supercapacitor linearly increases …
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Faculty of Engineering and Information Sciences - Papers: Part A
We report on the comparative study of magnetotransport properties of large-area vertical few-layer graphene networks with different morphologies, measured in a strong (up to 10 T) magnetic field over a wide temperature range. The petal-like and tree-like graphene networks grown by a plasma enhanced CVD process on a thin (500 nm) silicon oxide layer supported by a silicon wafer demonstrate a significant difference in the resistance-magnetic field dependencies at temperatures ranging from 2 to 200 K. This behaviour is explained in terms of the effect of electron scattering at ultra-long reactive edges and ultra-dense boundaries of the graphene nanowalls. Our …
Towards Minimizing Cost For Composite Data-Intensive Services, Lijuan Wang, Changyan Di, Yan Li, Jun Shen, Qingguo Zhou
Towards Minimizing Cost For Composite Data-Intensive Services, Lijuan Wang, Changyan Di, Yan Li, Jun Shen, Qingguo Zhou
Faculty of Engineering and Information Sciences - Papers: Part A
Service-oriented architecture provides a scalable and flexible framework to implement loosely-coupled, standardsbased, and protocol-independent distribute computing. One of its goals is to make use of the distributed services with different functions to build powerful composite services. Service composition is an active research area in service computing. Existing research is endeavoring to achieve desirable quality levels of composite services and improve customer satisfaction. The service-oriented approach using Web services is also of great interest for the implementation of data-intensive processes such as data mining, image processing and so on. The applications based on data-intensive services have become the most challenging type …
Strengthening Square Reinforced Concrete Columns By Circularisation And Frp Confinement, Thong Minh Pham, Viet Le Doan, Muhammad N. Hadi
Strengthening Square Reinforced Concrete Columns By Circularisation And Frp Confinement, Thong Minh Pham, Viet Le Doan, Muhammad N. Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
A technique called circularisation where segmental circular concrete covers made of different concrete strengths (40 MPa, 80 MPa and 100 MPa) was used to change a square column to a circular column. The applicability of the circularisation method was experimentally studied for a wide range of concrete strengths (from 40 MPa to 100 MPa). The behaviour of the strengthened specimens under different loading conditions including concentric loading, eccentric loading (25 mm and 50 mm) and flexural bending is investigated. The experimental results demonstrate that using high strength concrete (HSC) for the additional covers to strengthen existing square reinforced concrete (RC) …
Probabilistic Fuzzy Image Fusion Approach For Radar Through Wall Sensing, C H. Seng, A Bouzerdoum, M G. Amin, S L Phung
Probabilistic Fuzzy Image Fusion Approach For Radar Through Wall Sensing, C H. Seng, A Bouzerdoum, M G. Amin, S L Phung
Faculty of Engineering and Information Sciences - Papers: Part A
This paper addresses the problem of combining multiple radar images of the same scene to produce a more informative composite image. The proposed approach for probabilistic fuzzy logic-based image fusion automatically forms fuzzy membership functions using the Gaussian-Rayleigh mixture distribution. It fuses the input pixel values directly without requiring fuzzification and defuzzification, thereby removing the subjective nature of the existing fuzzy logic methods. In this paper, the proposed approach is applied to through-the-wall radar imaging in urban sensing and evaluated on real multiview and polarimetric data. Experimental results show that the proposed approach yields improved image contrast and enhances target …
On The Management Of Wind Power Intermittency, Ehsan Rahimi, Abdorreza Rabiee, Jamshid Aghaei, Kashem Muttaqi, Ali Esmaeel Nezhad
On The Management Of Wind Power Intermittency, Ehsan Rahimi, Abdorreza Rabiee, Jamshid Aghaei, Kashem Muttaqi, Ali Esmaeel Nezhad
Faculty of Engineering and Information Sciences - Papers: Part A
Nowadays, the world is encountering severe challenges in the energy generation sector. Environmental issues like climate change, global warming and Green House Gases (GHGs) and also social issues like dramatic increase in global population and increasing energy demand are the main causes of global concerns about energy resource management. In this regard, Renewable Energy Sources (RESs) are the suitable substitution to replace the conventional generating units that emit GHGs due to the use of fossil fuels. Among all RESs, wind energy seems to be promising for generating emission-free electrical energy. However, it is naturally unpredictable due to its intermittency which …
Leakage Resilient Authenticated Key Exchange Secure In The Auxiliary Input Model, Guomin Yang, Yi Mu, Willy Susilo, Duncan S. Wong
Leakage Resilient Authenticated Key Exchange Secure In The Auxiliary Input Model, Guomin Yang, Yi Mu, Willy Susilo, Duncan S. Wong
Faculty of Engineering and Information Sciences - Papers: Part A
Authenticated key exchange (AKE) protocols allow two parties communicating over an insecure network to establish a common secret key. They are among the most widely used cryptographic protocols in practice. In order to resist key-leakage attacks, several leakage resilient AKE protocols have been proposed recently in the bounded leakage model. In this paper, we initiate the study on leakage resilient AKE in the auxiliary input model. A promising way to construct such a protocol is to use a digital signature scheme that is entropically-unforgeable under chosen message and auxiliary input attacks. However, to date we are not aware of any …
Unitary Differential Space-Time-Frequency Codes For Mb-Ofdm Uwb Wireless Communications, L C. Tran, A. Mertins, T A. Wysocki
Unitary Differential Space-Time-Frequency Codes For Mb-Ofdm Uwb Wireless Communications, L C. Tran, A. Mertins, T A. Wysocki
Faculty of Engineering and Information Sciences - Papers: Part A
In a multiple-input multiple-output (MIMO), multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) system, coherent detection requires the transmission of a large number of symbols for channel estimation, thus reducing the bandwidth efficiency. For the first time, this paper proposes unitary differential space-time-frequency codes (DSTFCs) for MB-OFDM UWB communications, which increase the system bandwidth efficiency because no channel state information (CSI) is required. The proposed system would be useful when CSI is unavailable at the receiver, such as when the transmission of multiple channel estimation symbols is impractical or uneconomical. The coding and decoding algorithms for the proposed DSTFCs are …
Investigations Into The Dustiness Of Bulk Materials, Peter Wypych, Leong Mar
Investigations Into The Dustiness Of Bulk Materials, Peter Wypych, Leong Mar
Faculty of Engineering and Information Sciences - Papers: Part A
The mining industry, minerals processing, transport and export infrastructure sectors are facing increasingly difficult challenges in the near future, such as sustainable development and operation (e.g. environmental emissions, social/ cultural impacts, economics). This paper describes some of the new technologies that are being researched, developed and employed to minimise dust emissions by addressing dustability and dust generation mechanisms. It also presents some results from the research being undertaken on the measurement of the dustiness of bulk materials.
Combined Adaptive Lattice Reduction-Aided Detection And Antenna Shuffling For Dsttd-Ofdm Systems, Ngoc Phuc Le, Le Chung Tran, Farzad Safaei
Combined Adaptive Lattice Reduction-Aided Detection And Antenna Shuffling For Dsttd-Ofdm Systems, Ngoc Phuc Le, Le Chung Tran, Farzad Safaei
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, we consider lattice reduction (LR) aided linear detection in a DSTTD-OFDM (double space-time transmit diversity- orthogonal frequency division multiplexing) system with antenna shuffling. We first derive an antenna shuffling criterion for the LR-aided DSTTD-OFDM system. Next, we propose a combined reduced-feedback and adaptive LR algorithm by exploiting the correlation between OFDM subcarriers in the frequency domain. The LR-aided DSTTD OFDM system with this algorithm requires low computational effort for the LR operation and small feedback information. Simulation results show that a significant improvement could be achieved in the proposed system compared to previous (non-LR-aided) systems under spatially …
Studies Of The Surface Reaction Mechanisms Of Pb-3 Wt%Sn-0.5 Wt%Ag Anode In Cro3 Solutions, Jianzhong Li, Xiuli Sun, Yanwen Tian, Yue Zhao
Studies Of The Surface Reaction Mechanisms Of Pb-3 Wt%Sn-0.5 Wt%Ag Anode In Cro3 Solutions, Jianzhong Li, Xiuli Sun, Yanwen Tian, Yue Zhao
Faculty of Engineering and Information Sciences - Papers: Part A
This work examines the change of surface properties and the reaction process of lead alloy anode in CrO3 solution under conditions of high current density, by means of SEM, EDX, XRD, electrochemical test and Raman spectroscopy, for understanding the corrosion mechanism of lead alloy anode. In the initial oxidation stage of lead alloy anode, the diffraction peaks of monoclinic PbCrO4 and PbO are clearly shown in the XRD spectrum of the lead alloy surface. With increasing reaction time, PbCrO4 and PbO diffraction peaks are weakened and those of lead dioxide strengthened. Cyclic voltammetry reveals that the electrode potential change is …
Radiation Damage Of Biomolecules (Radam) Database Development: Current Status, S Denifl, Gustavo Garcia, B A. Huber, B P. Marinkovic, N Mason, J Postler, H Rabus, G Rixon, A V. Solov'yov, E Suraud, A V. Yakubovich
Radiation Damage Of Biomolecules (Radam) Database Development: Current Status, S Denifl, Gustavo Garcia, B A. Huber, B P. Marinkovic, N Mason, J Postler, H Rabus, G Rixon, A V. Solov'yov, E Suraud, A V. Yakubovich
Faculty of Engineering and Information Sciences - Papers: Part A
Ion beam therapy offers the possibility of excellent dose localization for treatment of malignant tumours, minimizing radiation damage in normal tissue, while maximizing cell killing within the tumour. However, as the underlying dependent physical, chemical and biological processes are too complex to treat them on a purely analytical level, most of our current and future understanding will rely on computer simulations, based on mathematical equations, algorithms and last, but not least, on the available atomic and molecular data. The viability of the simulated output and the success of any computer simulation will be determined by these data, which are treated …
An Improved Svd-Based Wall Clutter Mitigation Method For Through-The-Wall Radar Imaging, Fok Hing Chi Tivive, Abdesselam Bouzerdoum
An Improved Svd-Based Wall Clutter Mitigation Method For Through-The-Wall Radar Imaging, Fok Hing Chi Tivive, Abdesselam Bouzerdoum
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents an improved SVD-based method for wall clutter mitigation in through-the-wall radar imaging. The dominant wall singular components are identified from the singular value spectrum. A subspace projection method is then applied to remove the strong wall clutter, residing in the dominant singular components, and separate the target signal from noise. The remaining wall clutter residual, which is mixed with the target signal, is suppressed by segmenting the range profile of the signal residing in the subspace orthogonal to the wall and noise subspaces. A Gaussian mixture is used to model the range profile, and the optimum segmentation …
Risk Management In Liner Ship Fleet Deployment: A Joint Chance Constrained Programming Model, Tingsong Wang, Qiang Meng, Shuaian Wang, Zhijia Tan
Risk Management In Liner Ship Fleet Deployment: A Joint Chance Constrained Programming Model, Tingsong Wang, Qiang Meng, Shuaian Wang, Zhijia Tan
Faculty of Engineering and Information Sciences - Papers: Part A
This paper provides a tangible methodology to deal with the liner ship fleet deployment problem aiming at minimizing the total cost while maintaining a service level under uncertain container demand. The problem is first formulated as a joint chance constrained programming model, and the sample average approximation method and mixed-integer programming are used to deal with it. Finally, a numerical example of a liner shipping network is carried out to verify the applicability of the proposed model and solution algorithm. It is found that the service level has significant effect on the total cost.
An Investigation Into Electron Scattering From Pyrazine At Intermediate And High Energies, A G. Sanz, M C. Fuss, Francisco Blanco, J D. Gorfinkiel, D Almeida, F. Ferreira Da Silva, P Limao-Vieira, M J. Brunger, G Garcia
An Investigation Into Electron Scattering From Pyrazine At Intermediate And High Energies, A G. Sanz, M C. Fuss, Francisco Blanco, J D. Gorfinkiel, D Almeida, F. Ferreira Da Silva, P Limao-Vieira, M J. Brunger, G Garcia
Faculty of Engineering and Information Sciences - Papers: Part A
Total electron scattering cross sections for pyrazine in the energy range 10-500 eV have been measured with a new magnetically confined electron transmission-beam apparatus. Theoretical differential and integral elastic, as well as integral inelastic, cross sections have been calculated by means of a screening-corrected form of the independent-atom representation (IAM-SCAR) from 10 to 1000 eV incident electron energies. The present experimental and theoretical total cross sections show a good level of agreement, to within 10%, in the overlapping energy range. Consistency of these results with previous calculations (i.e., the R-matrix and Schwinger Multichannel methods) and elastic scattering measurements at lower …
Coastal Reservoir Strategy And Its Applications, Shu-Qing Yang, Jianli Liu, Pengzhi Lin, Changbo Jiang
Coastal Reservoir Strategy And Its Applications, Shu-Qing Yang, Jianli Liu, Pengzhi Lin, Changbo Jiang
Faculty of Engineering and Information Sciences - Papers: Part A
While the world's population tripled in the 20th century, the use of renewable water resources has grown six-fold [1]. It is estimated that the world population will enlarge by another 40 to 50 % in the following fifty years. The demand for water will be increasing resulted by the population growth combined with industrialization and urbanization, which will have serious consequences on the environment. According to WHO/UNICEF Joint Monitoring Programme (JMP) (2012 Update), 780 million people lack access to an improved water source; approximately one in nine people [2]. Water stress causes deterioration of fresh water resources in terms of …
Influence Of Three-Gorge-Dam On Downstream Ecosystem And Counter-Measures, Shu-Qing Yang, Pengzhi Lin, Dan Tian
Influence Of Three-Gorge-Dam On Downstream Ecosystem And Counter-Measures, Shu-Qing Yang, Pengzhi Lin, Dan Tian
Faculty of Engineering and Information Sciences - Papers: Part A
with population and economic growth, hu 1 man needs more water to support the development, and more and more dams are constructed at rivers' gorges, consequently many unpredicted disasters to the downstream ecosystem appears. Similar to many other places, these disasters also happens in the Dongting Lake after the construction and operation of Three-Gorge-Dam (TGD) in Yangtze River. Its water shortage problem in the lake plain becomes very severe and frequent, especially in dry seasons. This paper presents an innovative countermeasure to cater the dam's negative impacts on the middle reach, i.e., the application of SPP scheme to get rid …
A New Family Of Amicable Hadamard Matrices, Jennifer R. Seberry
A New Family Of Amicable Hadamard Matrices, Jennifer R. Seberry
Faculty of Engineering and Information Sciences - Papers: Part A
We study constructions for amicable Hadamard matrices. The family for orders 2t, t a positive integer is explicitly exhibited. We also show that there are amicable Hadamard matrices of order (2t-1)r + 1 for any odd integer r> 1. Now we have orders 15r + 1, 63r + 1, 255r + 1, 511 r + 1, ...., r> 1 an odd integer, for the first time.
Developing The Design Of A Continuous National Health Survey For New Zealand, Robert Graham Clark, Robert Templeton, Anne Mcnicholas
Developing The Design Of A Continuous National Health Survey For New Zealand, Robert Graham Clark, Robert Templeton, Anne Mcnicholas
Faculty of Engineering and Information Sciences - Papers: Part A
Background A continuously operating survey can yield advantages in survey management, field operations, and the provision of timely information for policymakers and researchers. We describe the key features of the sample design of the New Zealand (NZ) Health Survey, which has been conducted on a continuous basis since mid-2011, and compare to a number of other national population health surveys. Methods A number of strategies to improve the NZ Health Survey are described: implementation of a targeted dual-frame sample design for better Maori, Pacific, and Asian statistics; movement from periodic to continuous operation; use of core questions with rotating topic …
A Probabilistic Predictive Model For Residential Mobility In Australia, Mohammad-Reza Namazi-Rad, Nagesh Shukla, Albert Munoz, Payam Mokhtarian, Jun Ma
A Probabilistic Predictive Model For Residential Mobility In Australia, Mohammad-Reza Namazi-Rad, Nagesh Shukla, Albert Munoz, Payam Mokhtarian, Jun Ma
Faculty of Engineering and Information Sciences - Papers: Part A
Household relocation modelling is an integral part of the planning process as residential movements influence the demand for community facilities and services. Department of Families, Housing, Community Services and Indigenous Affairs (FaHCSIA) created the Household, Income and Labour Dynamics in Australia (HILDA) program to collect reliable longitudinal data on family and household dynamics. Socio-demographic information (such as general health situation and well-being, lifestyle changes, residential mobility, income and welfare dynamics, and labour market dynamics) is collected from the sampled individuals and households. The data shows that approximately 17% of Australian households and 13% of couple families in the HILDA sample …
Performance Monitoring Of Rail Tracks Stabilized By Geosynthetics And Shock Mats: Case Studies At Bulli And Singleton In Australia, Buddhima Indraratna, Sanjay Nimbalkar, Pongpipat Anantanasakul, Cholachat Rujikiatkamjorn, Tim Neville
Performance Monitoring Of Rail Tracks Stabilized By Geosynthetics And Shock Mats: Case Studies At Bulli And Singleton In Australia, Buddhima Indraratna, Sanjay Nimbalkar, Pongpipat Anantanasakul, Cholachat Rujikiatkamjorn, Tim Neville
Faculty of Engineering and Information Sciences - Papers: Part A
Rail tracks are conventionally built on compacted ballast and structural fill embankments overlying the natural subsoil. Ballast plays an important role in providing track stiffness to support heavy traffic loads, and providing rapid drainage. However, ballast deforms and degrades progressively under the heavy cyclic loading of passenger and freight trains, which may lead to a loss of track geometry, and require costly regular maintenance. In particular, track construction requires appropriate stabilization techniques for ballast, the extent of which depends also on the type of subgrade. Comprehensive field trials were carried out on two rail lines in Bulli and recently in …