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Articles 1021 - 1050 of 2936
Full-Text Articles in Social and Behavioral Sciences
Temporal And Parametric Study Of Traveller Preference Heterogeneity Using Random Parameter Logit Model, Ahm Mehbub Anwar, A Kiet Tieu, Peter Gibson, Matthew J. Berryman, Khin Than Win, Andrew Mccusker, Pascal Perez
Temporal And Parametric Study Of Traveller Preference Heterogeneity Using Random Parameter Logit Model, Ahm Mehbub Anwar, A Kiet Tieu, Peter Gibson, Matthew J. Berryman, Khin Than Win, Andrew Mccusker, Pascal Perez
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Eeg-Based Brain-Computer Interface For Automating Home Appliances, Abdel Ilah N. Alshbatat, Peter J. Vial, Prashan Premaratne, Le Chung Tran
Eeg-Based Brain-Computer Interface For Automating Home Appliances, Abdel Ilah N. Alshbatat, Peter J. Vial, Prashan Premaratne, Le Chung Tran
Faculty of Engineering and Information Sciences - Papers: Part A
An EEG-based brain-computer system for automating home appliances is proposed in this study. Brain-computer interface (BCI) system provides direct pathway between human brain and external computing resources or external devices. The system translates thought into action without using muscles through a number of electrodes attached to the user's scalp. The BCI technology can be used by disabled people to improve their independence and maximize their capabilities at home. In this paper, a novel BCI system was developed to control home appliances from a dedicated Graphical User Interface (GUI). The system is structured with six units: EMOTIV EPOC headset, personal computer, …
Building A Railway For The 21st Century: Bringing High Speed Rail A Step Closer, Max Michell, Scott Martin, Philip G. Laird
Building A Railway For The 21st Century: Bringing High Speed Rail A Step Closer, Max Michell, Scott Martin, Philip G. Laird
Faculty of Engineering and Information Sciences - Papers: Part A
High Speed Rail (HSR) operating at maximum speeds of above 250km/h with electric passenger trains are now operational in at least 11 countries. As the feasibility of building an Australian East Coast HSR network between Melbourne, Sydney and Brisbane is once again being examined, governments at Federal, State and Local levels need to develop complementary transport infrastructure and services to ensure the long-term financial and operational success of HSR. The lengthy time frame currently envisaged for completing the first stage of an Australian East Coast HSR network by 2035 provides a 20-year window for improving and upgrading urban and regional …
Changes Of Pan Evaporation And Its Influence Factors In China, Yan Guixia, Li Denghua, Kuang Yahong
Changes Of Pan Evaporation And Its Influence Factors In China, Yan Guixia, Li Denghua, Kuang Yahong
Faculty of Engineering and Information Sciences - Papers: Part A
Evaporation is an important component both in surface energy balance and terrestrial water cycle, and it is also a key factor determining weather and climate conditions. It plays a significant role in the studies of water and energy balance within a certain area and estimations of water resources. In this study, based on pan evaporation data and their variation trends from 499 stations in China, the correlations between evaporation and various influence factors, including the amount of precipitation, temperature, wind speed, sunshine duration and relative humidity, were studied in depth by means of correlation analysis and set pair analysis methods. …
Inclusion Of Mobile Telephone Numbers Into An Ongoing Population Health Survey In New South Wales, Australia, Using An Overlapping Dual-Frame Design: Impact On The Time Series, Margo Barr, Raymond A. Ferguson, David G. Steel
Inclusion Of Mobile Telephone Numbers Into An Ongoing Population Health Survey In New South Wales, Australia, Using An Overlapping Dual-Frame Design: Impact On The Time Series, Margo Barr, Raymond A. Ferguson, David G. Steel
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Evaluation Of The Ability Of A 2d Ionisation Chamber Array And An Epid To Detect Systematic Delivery Errors In Imrt Plans, Omemh Bawazeer, Alison Gray, Sankar Arumugam, Philip J. Vial, David Thwaites, Joseph Descallar, Lois C. Holloway
Evaluation Of The Ability Of A 2d Ionisation Chamber Array And An Epid To Detect Systematic Delivery Errors In Imrt Plans, Omemh Bawazeer, Alison Gray, Sankar Arumugam, Philip J. Vial, David Thwaites, Joseph Descallar, Lois C. Holloway
Faculty of Engineering and Information Sciences - Papers: Part A
Two clinical intensity modulated radiotherapy plans were selected. Eleven plan variations were created with systematic errors introduced: Multi-Leaf Collimator (MLC) positional errors with all leaf pairs shifted in the same or the opposite direction, and collimator rotation offsets. Plans were measured using an Electronic Portal Imaging Device (EPID) and an ionisation chamber array. The plans were evaluated using gamma analysis with different criteria. The gamma pass rates remained around 95% or higher for most cases with MLC positional errors of 1 mm and 2 mm with 3%/3mm criteria. The ability of both devices to detect delivery errors was similar.
Exact Travelling Wave Solutions Of A Variety Of Boussinesq-Like Equations, Jonu Lee, Rathinasamy Sakthivel
Exact Travelling Wave Solutions Of A Variety Of Boussinesq-Like Equations, Jonu Lee, Rathinasamy Sakthivel
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, we obtain exact traveling wave solutions of a variety of Boussinesq-like equations by using two distinct methods with symbolic computation. The Boussinesq equations play an important role in physical applications, such as in nonlinear lattice waves, acoustic waves, iron sound waves in a plasma, and vibrations in a nonlinear string. More precisely, the modified tanh-coth method is employed to obtain single soliton solutions, and the extended Jacobi elliptic function method is applied to derive doubly periodic wave solutions. Further, it is shown that soliton solutions and triangular solutions can be established as the limits of the Jacobi …
Imrt Treatment Monitor Unit Verification Using Absolute Calibrated Beamnrc And Geant4 Monte Carlo Simulations, Bradley M. Oborn, M Williams, M Bailey, M G. Carolan
Imrt Treatment Monitor Unit Verification Using Absolute Calibrated Beamnrc And Geant4 Monte Carlo Simulations, Bradley M. Oborn, M Williams, M Bailey, M G. Carolan
Faculty of Engineering and Information Sciences - Papers: Part A
Intensity Modulated Radiation Therapy (IMRT) treatments are some of the most complex being delivered by modern megavoltage radiotherapy accelerators. Therefore verification of the dose, or the presecribed Monitor Units (MU), predicted by the planning system is a key element to ensuring that patients should receive an accurate radiation dose plan during IMRT. One inherently accurate method is by comparison with absolute calibrated Monte Carlo simulations of the IMRT delivery by the linac head and corresponding delivery of the plan to a patient based phantom. In this work this approach has been taken using BEAMnrc for simulation of the treatment head, …
Streamlining Epid-Based Imrt Quality Assurance: Auto-Analysis And Auto-Report Generation, Aitang Xing, Sankar Arumugam, Shrikant Deshpande, Armia George, Lois Holloway, Gary Goozee, Alison Gray, Philip Vial
Streamlining Epid-Based Imrt Quality Assurance: Auto-Analysis And Auto-Report Generation, Aitang Xing, Sankar Arumugam, Shrikant Deshpande, Armia George, Lois Holloway, Gary Goozee, Alison Gray, Philip Vial
Faculty of Engineering and Information Sciences - Papers: Part A
Using an EPID for patient specific IMRT QA is an efficient way to verify patient plans prior to the treatment. Our centres' current EPID dosimetry method is based on a water equivalent depth approach, where EPID images of each IMRT field are converted to dose images and compared to Treatment planning system calculated dose images using a commercial software tool. Two physicists across two sites perform the analysis for an average of 12 new IMRT patients per week. To speed up this process, an in-house program called AutoEPIDIMRTQA was developed. The program automatically performs the following tasks sequentially: reading and …
A Sparsity-Based Training Algorithm For Least Squares Svm, Jie Yang, Jun Ma
A Sparsity-Based Training Algorithm For Least Squares Svm, Jie Yang, Jun Ma
Faculty of Engineering and Information Sciences - Papers: Part A
We address the training problem of the sparse Least Squares Support Vector Machines (SVM) using compressed sensing. The proposed algorithm regards the support vectors as a dictionary and selects the important ones that minimize the residual output error iteratively. A measurement matrix is also introduced to reduce the computational cost. The main advantage is that the proposed algorithm performs model training and support vector selection simultaneously. The performance of the proposed algorithm is tested with several benchmark classification problems in terms of number of selected support vectors and size of the measurement matrix. Simulation results show that the proposed algorithm …
Comparison Of The Abiotic Preferences Of Macroinvertebrates In Tropical River Basins, Gert Everaert, Jan De Neve, Pieter Boets, Luis Dominguez-Granda, Seid Tiku Mereta, Argaw Ambelu, Thu Huong Hoang, Peter L. M Goethals, Olivier Thas
Comparison Of The Abiotic Preferences Of Macroinvertebrates In Tropical River Basins, Gert Everaert, Jan De Neve, Pieter Boets, Luis Dominguez-Granda, Seid Tiku Mereta, Argaw Ambelu, Thu Huong Hoang, Peter L. M Goethals, Olivier Thas
Faculty of Engineering and Information Sciences - Papers: Part A
We assessed and compared abiotic preferences of aquatic macroinvertebrates in three river basins located in Ecuador, Ethiopia and Vietnam. Upon using logistic regression models we analyzed the relationship between the probability of occurrence of five macroinvertebrate families, ranging from pollution tolerant to pollution sensitive, (Chironomidae, Baetidae, Hydroptilidae, Libellulidae and Leptophlebiidae) and physical-chemical water quality conditions. Within the investigated physical-chemical ranges, nine out of twenty-five interaction effects were significant. Our analyses suggested river basin dependent associations between the macroinvertebrate families and the corresponding physical-chemical conditions. It was found that pollution tolerant families showed no clear abiotic preference and occurred at most …
Transmob: An Agent Based Simulation Of Transport Demand And Residential Mobility In South East Sydney, Pascal Perez, Nam N. Huynh, Vu Lam Cao, Rohan Wickramasuriya, Matthew J. Berryman
Transmob: An Agent Based Simulation Of Transport Demand And Residential Mobility In South East Sydney, Pascal Perez, Nam N. Huynh, Vu Lam Cao, Rohan Wickramasuriya, Matthew J. Berryman
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents an agent-based simulation, called TransMob, of transport demand and residential mobility in South East Sydney, Australia. In this model, each agent represents an individual resident of the study area. Each agent is given an initial travel diary. Agents are grouped in various types of household which generate social interdependencies and additional constrains on travel diaries. This initial synthetic population is then allowed to evolve for 20 years, driven by natural growth parameters, social bonding and migration rates. A micro-simulation component calculates daily traffic conditions and individual travel times, allowing for multi-modal journeys. The transport mode choice component …
Dispersive Shock Waves In Colloids With Temperature Dependent Compressibility, Amirah Azmi, Timothy R. Marchant
Dispersive Shock Waves In Colloids With Temperature Dependent Compressibility, Amirah Azmi, Timothy R. Marchant
Faculty of Engineering and Information Sciences - Papers: Part A
The formation of a dispersive shock wave in a colloidal medium, due to an initial jump in the light intensity, is studied. The compressibility of the colloidal particles is modeled using a series in the particle density, or packing fraction, where the virial coefficients depend on the particle interaction model. Both the theoretical hard disk and sphere repulsive models, and a model with temperature dependent compressibility, are considered. Experimental results for the second virial coefficient show that it is temperature dependent and that the particle interactions can be either repulsive or attractive. These effects are modeled using a power-law relationship. …
Mining Periodic Patterns From Nested Event Logs, Janusz R. Getta, Marcin Zimniak, Wolfgang Benn
Mining Periodic Patterns From Nested Event Logs, Janusz R. Getta, Marcin Zimniak, Wolfgang Benn
Faculty of Engineering and Information Sciences - Papers: Part A
2014 IEEE. Information about periodic computations of processes, events, and software components can be used to improve performance of software systems. This work investigates mining periodic patterns of events from historical information related to processes, events, and software components. We introduce a concept of a nested event log that generalizes historical information stored in the application traces, event logs and dynamic profiles. We show how a nested event log can be compressed into a reduced event table and later on converted into a workload histogram suitable for mining periodic patterns of events. The paper defines a concept of periodic pattern …
Two-Party (Blind) Ring Signatures And Their Applications, Man Ho Au, Willy Susilo
Two-Party (Blind) Ring Signatures And Their Applications, Man Ho Au, Willy Susilo
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
The Impact Of Electronic Health Records On Client Safety In Aged Care Homes, Tao Jiang, Ping Yu
The Impact Of Electronic Health Records On Client Safety In Aged Care Homes, Tao Jiang, Ping Yu
Faculty of Engineering and Information Sciences - Papers: Part A
This study collects and critically reviews the published literature to synthesize the risk factors for client safety in residential aged care and the potential contributions of electronic health records to reducing these risks. Three major types of risk factors for client safety were identified: risk factors related to the person's health; those related to the health and aged care system serving the person and those related to human error. Multiple strategies at all levels of an aged care organization are needed to reduce risks and improve client safety. Electronic health records can be one of the effective organizational mechanisms because …
A Cross-Cultural Study Of Intrusiveness And Fluency Effects Of Web Ads, Xinwei Wang, Tingru Cui, Hock Hai Teo
A Cross-Cultural Study Of Intrusiveness And Fluency Effects Of Web Ads, Xinwei Wang, Tingru Cui, Hock Hai Teo
Faculty of Engineering and Information Sciences - Papers: Part A
Advertising online has increasingly become an important marketing strategy. Along with the rising ad dollars invested on the web, marketers have also devised more powerful ad delivery tactics to garner online consumers' attention. These powerful online advertising tactics may result in intrusiveness perceptions and processing fluency effects. As Westerners tend to focus on the focal object whereas East Asians tend to pay attention to the focal object and contextual background simultaneously when processing a visual scene, East Asians' and Westerners' culturally divergent visual processing styles would lead them to develop varying intrusiveness perceptions and experience differential processing fluency when exposed …
In-Situ Synchrotron Diffraction Study Of The Phase Evolution Of The Novel NaX(Fe1/2Mn1/2)O2 Cathode For Use In Sodium-Ion Batteries, Wei Kong Pang, Sujith Kalluri, Vanessa K. Peterson, Neeraj Sharma, Hua-Kun Liu, Shi Xue Dou, Zhenyan Guo
In-Situ Synchrotron Diffraction Study Of The Phase Evolution Of The Novel NaX(Fe1/2Mn1/2)O2 Cathode For Use In Sodium-Ion Batteries, Wei Kong Pang, Sujith Kalluri, Vanessa K. Peterson, Neeraj Sharma, Hua-Kun Liu, Shi Xue Dou, Zhenyan Guo
Faculty of Engineering and Information Sciences - Papers: Part A
Abstract of a poster presentation at the 5th Australia-China Conference on Science, Technology and Eduction with the 5th Australia-China Symposium for Materials Science, at the University of Wollongong (UOW), Australia, on 21st - 23rd July 2014.
Low-Energy Positron And Electron Scattering From Tetrahydrofuran And 3-Hydroxy-Tetrahydrofuran, James P. Sullivan, Luca Chiari, Emma Anderson, Wade Tattersall, Prasanga Palihawadana, J R. Machacek, Casten Makochekanwa, R P. Mceachran, Stephen J. Buckman, M J. Brunger, Gustavo Garcia, Francisco Blanco
Low-Energy Positron And Electron Scattering From Tetrahydrofuran And 3-Hydroxy-Tetrahydrofuran, James P. Sullivan, Luca Chiari, Emma Anderson, Wade Tattersall, Prasanga Palihawadana, J R. Machacek, Casten Makochekanwa, R P. Mceachran, Stephen J. Buckman, M J. Brunger, Gustavo Garcia, Francisco Blanco
Faculty of Engineering and Information Sciences - Papers: Part A
We present new cross section results from a joint experimental and theoretical investigation into low-energy positron and electron scattering from two targets of biological interest, namely tetrahydrofuran and 3-hydroxy-tetrahydrofuran. We compare and discuss the total, elastic and inelastic cross sections for these species in the light of potential positron and electron-induced damage in biomolecular systems.
The Development Of An Adaptive Tuned Magnetorheological Elastomer Absorber Working In Squeeze Mode, Shuaishuai Sun, Ying Chen, Jian Yang, Tongfei Tian, Huaxia Deng, Weihua Li, Haiping Du, Gursel Alici
The Development Of An Adaptive Tuned Magnetorheological Elastomer Absorber Working In Squeeze Mode, Shuaishuai Sun, Ying Chen, Jian Yang, Tongfei Tian, Huaxia Deng, Weihua Li, Haiping Du, Gursel Alici
Faculty of Engineering and Information Sciences - Papers: Part A
In the past, adaptive tuned vibration absorbers (ATVAs) based on magnetorheological elastomers (MREs) have mainly been developed in a shear working mode. The enhancing effect of MREs in squeeze mode has already been investigated, but ATVAs in squeeze mode have rarely been studied. This paper reports the development of a compact squeeze MRE absorber and its subsequent performance in various magnetic fields characterized under various frequencies by a vibration testing system. The results revealed that the natural frequency of the MRE absorber working in squeeze mode can be tuned from 37 Hz to 67 Hz. Following this, a theoretical model …
Study On Hot-Working Behavior Of High Carbon Steel / Low Carbon Steel Composite Material Using Processing Map, Xingjian Gao, Zhengyi Jiang, Dongbin Wei, Sihai Jiao, Dengfu Chen
Study On Hot-Working Behavior Of High Carbon Steel / Low Carbon Steel Composite Material Using Processing Map, Xingjian Gao, Zhengyi Jiang, Dongbin Wei, Sihai Jiao, Dengfu Chen
Faculty of Engineering and Information Sciences - Papers: Part A
The high carbon steel (HCS)/low carbon steel (LCS) laminated composite made by centrifugal casting technology was subjected to hot compression tests on Gleeble 3500 thermomechanical simulator in a range of temperatures (800-1100 oC) and strain rates (0.02-10 s-1). The hot-working behavior of the laminate was characterised by analysing the flow stress-strain curves and constructing the processing map based on dynamic materials model via superimposing efficiency of power dissipation and flow instability maps. The safe and unsafe processing conditions were identified in the processing map which was validated by microstructural examinations. Banded microstructure and micro-shear cracks occurred in the unsafe domains …
Continuous Biotransformation Of Bisphenol A And Diclofenac By Laccase In An Enzymatic Membrane Reactor, Ngoc Luong Nguyen, Faisal I. Hai, William Price, Frederic Leusch, Felicity Roddick, Ewan J. Mcadam, Saleh Faraj Magram, Long D. Nghiem
Continuous Biotransformation Of Bisphenol A And Diclofenac By Laccase In An Enzymatic Membrane Reactor, Ngoc Luong Nguyen, Faisal I. Hai, William Price, Frederic Leusch, Felicity Roddick, Ewan J. Mcadam, Saleh Faraj Magram, Long D. Nghiem
Faculty of Engineering and Information Sciences - Papers: Part A
A novel enzymatic membrane reactor (EMR) was explored for continuous removal of two trace organic contaminatnts (TrOCs) ubiquitously detected in wastewater - namely bisphenol A (BPA and diclofnac (DCF) - by a commercially available laccase from aspergillus oryzae.
A Provably Secure Identity-Based Proxy Ring Signature Based On Rsa, Maryam Rjabzadeh Asaar, Mahmoud Salmasizadeh, Willy Susilo
A Provably Secure Identity-Based Proxy Ring Signature Based On Rsa, Maryam Rjabzadeh Asaar, Mahmoud Salmasizadeh, Willy Susilo
Faculty of Engineering and Information Sciences - Papers: Part A
Proxy ring (anonymous proxy) signatures allow an entity to delegate its signing capability to a group of entities (proxy group) such that only one of the members in the proxy group can generate a proxy signature on behalf of the delegator while privacy of the proxy signer is protected. Identity-based versions of proxy ring signatures employ identity strings in place of randomly generated public keys. Our contribution is two-fold. First, we formalize a security model for identity-based proxy ring signatures. We note that there exists no formal security model for identity-based proxy ring signatures prior to our work. Second, we …
Lll For Ideal Lattices Re-Evaluation Of The Security Of Gentry-Halevi's Fhe Scheme, Thomas Plantard, Willy Susilo, Zhenfei Zhang
Lll For Ideal Lattices Re-Evaluation Of The Security Of Gentry-Halevi's Fhe Scheme, Thomas Plantard, Willy Susilo, Zhenfei Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
The LLL algorithm, named after its inventors, Lenstra, Lenstra and Lovász, is one of themost popular lattice reduction algorithms in the literature. In this paper, we propose the first variant of LLL algorithm that is dedicated for ideal lattices, namely, the iLLL algorithm. Our iLLL algorithm takes advantage of the fact that within LLL procedures, previously reduced vectors can be re-used for further reductions. Using this method, we prove that the iLLL is at least as fast as the LLL algorithm, and it outputs a basis with the same quality. We also provide a heuristic approach that accelerates the re-use …
Collusion-Resistance In Optimistic Fair Exchange, Yang Wang, Willy Susilo, Man Ho Au, Guilin Wang
Collusion-Resistance In Optimistic Fair Exchange, Yang Wang, Willy Susilo, Man Ho Au, Guilin Wang
Faculty of Engineering and Information Sciences - Papers: Part A
Optimistic fair exchange (OFE) is a type of cryptographic protocols aimed at solving the fair exchange problem over open networks with the help of a third party to settle disputes between exchanging parties. It is well known that a third party is necessary in the realization of a fair exchange protocol. However, a fully trusted third party may not be available over open networks. In this paper, the security of most of the proposed OFE protocols depends on the assumption that the third party is semitrusted in the sense that it may misbehave on its own but does not conspire …
Cp-Abe With Constant-Size Keys For Lightweight Devices, Fuchun Guo, Willy Susilo, Duncan Wong, Vijay Varadharajan
Cp-Abe With Constant-Size Keys For Lightweight Devices, Fuchun Guo, Willy Susilo, Duncan Wong, Vijay Varadharajan
Faculty of Engineering and Information Sciences - Papers: Part A
Lightweight devices, such as radio frequency identi- fication tags, have a limited storage capacity, which has become a bottleneck for many applications, especially for security applica- tions. Ciphertext-policy attribute-based encryption (CP-ABE) is a promising cryptographic tool, where the encryptor can decide the access structure that will be used to protect the sensitive data. However, current CP-ABE schemes suffer from the issue of having long decryption keys, in which the size is linear to and dependent on the number of attributes. This drawback prevents the use of lightweight devices in practice as a storage of the decryption keys of the CP-ABE …
Ppdcp-Abe: Privacy-Preserving Decentralized Ciphertext-Policy Attribute-Based Encryption, Jinguang Han, Willy Susilo, Yi Mu, Jianying Zhou, Man Ho Au
Ppdcp-Abe: Privacy-Preserving Decentralized Ciphertext-Policy Attribute-Based Encryption, Jinguang Han, Willy Susilo, Yi Mu, Jianying Zhou, Man Ho Au
Faculty of Engineering and Information Sciences - Papers: Part A
Cipher-policy attribute-based encryption (CP-ABE) is a more efficient and flexible encryption system as the encryptor can control the access structure when encrypting a message. In this paper, we propose a privacy-preserving decentralized CP-ABE (PPDCP-ABE) scheme where the central authority is not required, namely each authority can work independently without the cooperation to initialize the system. Meanwhile, a user can obtain secret keys from multiple authorities without releasing his global identifier (GID) and attributes to them. This is contrasted to the previous privacy-preserving multi-authority ABE (PPMA-ABE) schemes where a user can obtain secret keys from multiple authorities with them knowing his …
Real-Time Control Of Inertial Focusing In Microfluidics Using Dielectrophoresis (Dep), Jun Zhang, Sheng Yan, Gursel Alici, Nam-Trung Nguyen, Dino Di Carlo, Weihua Li
Real-Time Control Of Inertial Focusing In Microfluidics Using Dielectrophoresis (Dep), Jun Zhang, Sheng Yan, Gursel Alici, Nam-Trung Nguyen, Dino Di Carlo, Weihua Li
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, we propose a novel hybrid microfluidic device, for the first time, which integrates and fully couples both dielectrophoresis (DEP) and inertial focusing. A DEP force is coupled with inertial lift force to adjust particle's equilibrium position in the vertical direction in real time. The focusing pattern and position of the particles along the horizontal plane can be concurrently adjusted by adjusting their vertical position with DEP forces. The magnitude of secondary flow drag dramatically increases when particles are levitated towards the centre of the channel in the vertical direction. The paper analytically and experimentally investigates the mechanism …
Optimistic Fair Exchange In The Enhanced Chosen-Key Model, Yang Wang, Man Ho Au, Willy Susilo
Optimistic Fair Exchange In The Enhanced Chosen-Key Model, Yang Wang, Man Ho Au, Willy Susilo
Faculty of Engineering and Information Sciences - Papers: Part A
Optimistic fair exchange (OFE) is a kind of protocol to guarantee fairness for the parties involved in an exchange with the help of an arbitrator. A fundamental work of optimistic fair exchange is to define security models capturing realistic attacks and design schemes secure in practical models. The security models are very essential to ensure that they capture practical situation, which will ensure that the protocols can be adopted in practice. The contributions of this paper are three fold. First, we observe that the existing OFE models do not capture realistic situation, where the adversary can actually observe the full …
A Novel Type Of One-Dimensional Organic Selenium-Containing Fiber With Superior Performance For Lithium-Selenium And Sodium-Selenium Batteries, Hongqiang Wang, Sha Li, Zhixin Chen, Hua-Kun Liu, Zaiping Guo
A Novel Type Of One-Dimensional Organic Selenium-Containing Fiber With Superior Performance For Lithium-Selenium And Sodium-Selenium Batteries, Hongqiang Wang, Sha Li, Zhixin Chen, Hua-Kun Liu, Zaiping Guo
Faculty of Engineering and Information Sciences - Papers: Part A
A novel type of organic selenide fiber composed of carbonized polyacrylonitrile/selenium (CPAN/Se) has been synthesized by heating polyacrylonitrile-selenium (PAN-Se) fibers via the electrospinning technique at 600°C. The Se molecules are confined by N-containing carbon ring structures in the form of energy-storing selenium side chains in the carbonized PAN matrix. This unique stable chemical structure with a conductive carbon skeleton connected to the selenium side chains and excellent mechanical stability can allow CPAN/Se composite cathodes to be charged and discharged in a low-cost carbonate-based electrolyte with excellent long cycle stability and quite good rate performance. The superior electrochemical performance of CPAN/Se …