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Articles 481 - 510 of 2936
Full-Text Articles in Social and Behavioral Sciences
Theoretical And Experimental Study On A Compliant Flipper-Leg During Terrestrial Locomotion, Tao Fang, Youcheng Zhou, Shikun Li, Min Xu, Haiyi Liang, Weihua Li, Shiwu Zhang
Theoretical And Experimental Study On A Compliant Flipper-Leg During Terrestrial Locomotion, Tao Fang, Youcheng Zhou, Shikun Li, Min Xu, Haiyi Liang, Weihua Li, Shiwu Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
An amphibious robot with straight compliant flipper-legs can conquer various amphibious environments. The robot can rotate its flipper-legs and utilize their large deflection to walk on rough terrain, and it can oscillate the straight flipper-legs to propel itself underwater. This paper focuses on the dynamics of the compliant straight flipper-legs during terrestrial locomotion by modeling its deformation dynamically with large deflection theory and simulating it to investigate the parameters of locomotion such as trajectory, velocity, and propulsion. To validate the theoretical model of dynamic locomotion, a single-leg experimental platform is used to explore the flipper-legs in motion with various structural …
Effect Of Solidification Rate On Microstructure Evolution In Dual Phase Microalloyed Steel, Andrii Kostryzhev, C Slater, Olexandra Marenych, C Davis
Effect Of Solidification Rate On Microstructure Evolution In Dual Phase Microalloyed Steel, Andrii Kostryzhev, C Slater, Olexandra Marenych, C Davis
Faculty of Engineering and Information Sciences - Papers: Part A
In steels the dependence of ambient temperature microstructure and mechanical properties on solidification rate is not well reported. In this work we investigate the microstructure and hardness evolution for a low C low Mn NbTi-microalloyed steel solidified in the cooling rate range of 1-50 Cs-1. The maximum strength was obtained at the intermediate solidification rate of 30 Cs-1. This result has been correlated to the microstructure variation with solidification rate.
Investigation Of The Effect Of Electrolytic Hydrogen Charging Of X70 Steel: Ii. Microstructural And Crystallographic Analyses Of The Formation Of Hydrogen Induced Cracks And Blisters, Ahmed A. Saleh, Daniel Hejazi, Azdiar A. Gazder, Druce P. Dunne, Elena V. Pereloma
Investigation Of The Effect Of Electrolytic Hydrogen Charging Of X70 Steel: Ii. Microstructural And Crystallographic Analyses Of The Formation Of Hydrogen Induced Cracks And Blisters, Ahmed A. Saleh, Daniel Hejazi, Azdiar A. Gazder, Druce P. Dunne, Elena V. Pereloma
Faculty of Engineering and Information Sciences - Papers: Part A
Hydrogen-induced cold cracking and blistering in hydrogen-charged X70 steel was found to be highly dependent on microstructure, with the banded ferrite-pearlite microstructure of hot rolled strip showing a higher susceptibility than other microstructures produced by different thermal-mechanical routes. Although crack initiation was particularly sensitive to microstructure, crack growth occurred largely parallel to the rolling plane, at least at a macroscopic level, for all of the microstructures investigated. The crack plane was associated with structural anisotropy arising from processing by rolling and was not found to be related to a preferred grain orientation. At a microstructural level, crack propagation was mostly …
Modelling Railway Prestressed Concrete Sleepers (Crossties) With Holes And Web Openings, Sakdirat Kaewunruen, Erosha Kahawatta Gamage, Alex M. Remennikov
Modelling Railway Prestressed Concrete Sleepers (Crossties) With Holes And Web Openings, Sakdirat Kaewunruen, Erosha Kahawatta Gamage, Alex M. Remennikov
Faculty of Engineering and Information Sciences - Papers: Part A
Pre-stressing in concrete railway sleepers yields endurance property under high-cycle fatigue. This structural effect plays a positive role in durability of the sleepers. However, as a common practice, track engineers often generate holes or web openings in concrete sleepers to enable the accommodation of rail equipment cables and signaling equipment. This study aims to provide a principle understanding of the structural capacity and energy toughness of pre-stressed concrete sleepers with and without holes and web openings. It will investigate the design criteria and effects of holes and web openings on the structural capacity of concrete sleepers under rail loading. The …
Delivering Sustainable Building Projects - Challenges, Reality And Success, Haleh Rasekh, Timothy J. Mccarthy
Delivering Sustainable Building Projects - Challenges, Reality And Success, Haleh Rasekh, Timothy J. Mccarthy
Faculty of Engineering and Information Sciences - Papers: Part A
This research concerns the delivery of sustainable building projects. These projects are defined as those which either attempt to achieve green ratings or are claimed to address certain sustainability issues. A key focus is to examine how the client's vision for sustainability is achieved or compromised by the practicality of construction. Two sustainability rating systems, the Australian Green Star and the Living Building Challenge from the U.S. are discussed. This research examines two projects; one university multipurpose building (SMART Infrastructure Facility); and an advanced research facility, the Sustainable Buildings Research Centre (SBRC). The methodology used is semi-structured interviews of key …
Numerical Characterization Of Protein Sequences Based On The Generalized Chou's Pseudo Amino Acid Composition, Chun Li, Xueqin Li, Yan-Xia Lin
Numerical Characterization Of Protein Sequences Based On The Generalized Chou's Pseudo Amino Acid Composition, Chun Li, Xueqin Li, Yan-Xia Lin
Faculty of Engineering and Information Sciences - Papers: Part A
The technique of comparison and analysis of biological sequences is playing an increasingly important role in the field of Computational Biology and Bioinformatics. One of the key steps in developing the technique is to identify an appropriate manner to represent a biological sequence. In this paper, on the basis of three physical-chemical properties of amino acids, a protein primary sequence is reduced into a six-letter sequence, and then a set of elements which reflect the global and local sequence-order information is extracted. Combining these elements with the frequencies of 20 native amino acids, a (21+λ) dimensional vector is constructed to …
Multiple Factors Affect Socioeconomics And Wellbeing Of Artisanal Sea Cucumber Fishers, Steven W. Purcell, Poasi Ngaluafe, Simon J. Foale, Nicole A. Cocks, Brian R. Cullis, Watisoni Lalavanua
Multiple Factors Affect Socioeconomics And Wellbeing Of Artisanal Sea Cucumber Fishers, Steven W. Purcell, Poasi Ngaluafe, Simon J. Foale, Nicole A. Cocks, Brian R. Cullis, Watisoni Lalavanua
Faculty of Engineering and Information Sciences - Papers: Part A
Small-scale fisheries are important to livelihoods and subsistence seafood consumption of millions of fishers. Sea cucumbers are fished worldwide for export to Asia, yet few studies have assessed factors affecting socioeconomics and wellbeing among fishers. We interviewed 476 men and women sea cucumber fishers at multiple villages within multiple locations in Fiji, Kiribati, Tonga and New Caledonia using structured questionnaires. Low rates of subsistence consumption confirmed a primary role of sea cucumbers in income security. Prices of sea cucumbers sold by fishers varied greatly among countries, depending on the species. Gender variation in landing prices could be due to women …
Addressing Misconceptions About Engineering Through Student-Industry Interaction In A Video-Augmented 3d Immersive Virtual World, Sasha Nikolic, Thomas Goldfinch, Mark Jian Wei Lee, Christian H. Ritz
Addressing Misconceptions About Engineering Through Student-Industry Interaction In A Video-Augmented 3d Immersive Virtual World, Sasha Nikolic, Thomas Goldfinch, Mark Jian Wei Lee, Christian H. Ritz
Faculty of Engineering and Information Sciences - Papers: Part A
A key goal of engineering education is to ensure students are adequately prepared to enter professional practice. Unfortunately, students have been found to bring to university significant misconceptions about the types of work engineers perform, which can have an adverse impact on their readiness to fully appreciate and benefit from course activities. This paper presents a case study of how iSee, a collaborative online platform that allows for video conferencing within a three-dimensional immersive virtual world, was used to host a careers fair event in which students learned about the engineering profession and about the various engineering majors available to …
Scaling By The Square-Root-Of-Time Rule: An Empirical Investigation Using Five Market Indexes, James Cameron, Chandra M. Gulati, Yan-Xia Lin
Scaling By The Square-Root-Of-Time Rule: An Empirical Investigation Using Five Market Indexes, James Cameron, Chandra M. Gulati, Yan-Xia Lin
Faculty of Engineering and Information Sciences - Papers: Part A
The value of the theoretical constant used to scale daily volatility to both a five-day volatility estimate and a ten-day volatility estimate is compared with empirical estimates using a volatility modeling framework. Five composite stock indexes are analyzed to determine the different behaviors of scaling across markets. Both developed and emerging markets are considered, to provide additional detail to the comparisons. The results provided are considered in a value-at-risk application. While using the square-root-of-time rule on a weekly or ten-day basis is appropriate in certain cases, for time series with a linear dependence component the rule can drastically err from …
On The Use Of A Convolution-Superposition Algorithm For Plan Checking In Lung Stereotactic Body Radiation Therapy, Nicholas G. Hardcastle, Bradley M. Oborn, Annette Haworth
On The Use Of A Convolution-Superposition Algorithm For Plan Checking In Lung Stereotactic Body Radiation Therapy, Nicholas G. Hardcastle, Bradley M. Oborn, Annette Haworth
Faculty of Engineering and Information Sciences - Papers: Part A
Stereotactic body radiation therapy (SBRT) aims to deliver a highly conformal ablative dose to a small target. Dosimetric verification of SBRT for lung tumors presents a challenge due to heterogeneities, moving targets, and small fields. Recent software (M3D) designed for dosimetric verification of lung SBRT treatment plans using an advanced convolution–superposition algorithm was evaluated. Ten lung SBRT patients covering a range of tumor volumes were selected. 3D CRT plans were created using the XiO treatment planning system (TPS) with the superposition algorithm. Dose was recalculated in the Eclipse TPS using the AAA algorithm, M3D verification software using the collapsed-cone-convolution algorithm, …
Optimizing Dose Enhancement With Ta2o5 Nanoparticles For Synchrotron Microbeam Activated Radiation Therapy, Elette Engels, Stephanie Corde, Sally Mckinnon, Sebastien Incerti, Konstantin K. Konstantinov, Anatoly B. Rosenfeld, Moeava Tehei, Michael L. F Lerch, Susanna Guatelli
Optimizing Dose Enhancement With Ta2o5 Nanoparticles For Synchrotron Microbeam Activated Radiation Therapy, Elette Engels, Stephanie Corde, Sally Mckinnon, Sebastien Incerti, Konstantin K. Konstantinov, Anatoly B. Rosenfeld, Moeava Tehei, Michael L. F Lerch, Susanna Guatelli
Faculty of Engineering and Information Sciences - Papers: Part A
Microbeam Radiation Therapy (MRT) exploits tumour selectivity and normal tissue sparing with spatially fractionated kilovoltage X-ray microbeams through the dose volume effect. Experimental measurements with Ta2O5 nanoparticles (NPs) in 9L gliosarcoma treated with MRT at the Australian Synchrotron, increased the treatment efficiency. Ta2O5 NPs were observed to form shells around cell nuclei which may be the reason for their efficiency in MRT. In this article, our experimental observation of NP shell formation is the basis of a Geant4 radiation transport study to characterise dose enhancement by Ta2O5 NPs in MRT. Our …
Incorporating Environmental Evaluation And Thermal Properties Of Concrete Mix Designs, Mehdi Robati, Timothy J. Mccarthy, Georgios Kokogiannakis
Incorporating Environmental Evaluation And Thermal Properties Of Concrete Mix Designs, Mehdi Robati, Timothy J. Mccarthy, Georgios Kokogiannakis
Faculty of Engineering and Information Sciences - Papers: Part A
One of the main challenges in sustainable design of buildings is to improve the energy efficiency of the building during its lifetime along with reducing the environmental impact of the design. Recent advances in concrete technology offer lower embodied emission through the application of supplementary cementitious materials and recycled aggregates. There are also improvements to thermal properties with the application of admixtures. However, the relationships between the environmental impact (Cradle to Gate) and thermal performance of concrete mix designs have not been researched adequately. The Green House Gas (GHG) emissions associated with each individual concrete component and its production need …
Highly Efficient Plasmon Excitation In Graphene-Bi2te3 Heterostructure, Yao Lu, Jingchao Song, Jian Yuan, Lei Zhang, Steve Qing Yang Wu, Wenzhi Yu, Meng Zhao, Cheng-Wei Qiu, Jinghua Teng, Kian P. Loh, C Zhang, Qiaoliang Bao
Highly Efficient Plasmon Excitation In Graphene-Bi2te3 Heterostructure, Yao Lu, Jingchao Song, Jian Yuan, Lei Zhang, Steve Qing Yang Wu, Wenzhi Yu, Meng Zhao, Cheng-Wei Qiu, Jinghua Teng, Kian P. Loh, C Zhang, Qiaoliang Bao
Faculty of Engineering and Information Sciences - Papers: Part A
Graphene plasmons have attracted a lot of attention due to large confinement and small mode volume. However, the graphene-based plasmonic devices are still limited in the practical applications due to relatively small light absorption of graphene and limited light–matter coupling efficiency in general excitation strategy. Here, this work reported a strong plasmonic coupling effect observed in a novel graphene-Bi2Te3 heterostructure on the top of silicon gratings. It is interesting to find that the extinction spectra of the graphene-Bi2Te3 heterostructure has shown three times greater magnitude than that of graphene. This observation is mainly attributed …
Reproducing Personal Sound Zones Using A Hybrid Synthesis Of Dynamic And Parametric Loudspeakers, Jacob Donley, Christian H. Ritz, Bastiaan (Willem) Kleijn
Reproducing Personal Sound Zones Using A Hybrid Synthesis Of Dynamic And Parametric Loudspeakers, Jacob Donley, Christian H. Ritz, Bastiaan (Willem) Kleijn
Faculty of Engineering and Information Sciences - Papers: Part A
This paper proposes a hybrid approach to personal sound zones utilising multizone soundfield reproduction techniques and parametric loudspeakers. Crossover filters are designed, to switch between reproduction methods, through analytical analysis of aliasing artifacts in multizone reproductions. By realising the designed crossover filters, wideband acoustic contrast between zones is significantly improved. The trade-off between acoustic contrast and the bandwidth of the reproduced soundfield is investigated. Results show that by incorporating the proposed hybrid model the whole wideband bandwidth is spatial-aliasing free with a mean acoustic contrast consistently above 54.2dB, an improvement of up to 24.2dB from a non-hybrid approach, with as …
Electromagnetism In Terms Of Quantum Measurements, Andreas Andersson
Electromagnetism In Terms Of Quantum Measurements, Andreas Andersson
Faculty of Engineering and Information Sciences - Papers: Part A
We consider the question whether electromagnetism can be derived from the theory of quantum measurements. It turns out that this is possible, both for quantum and classical electromagnetism, if we use more recent innovations such as smearing of observables and simultaneous measurability. In this way, we justify the use of von Neumann-type measurement models for physical processes. We apply the operational quantum measurement theory to gain insight into fundamental aspects of quantum physics. Interactions of von Neumann type make the Heisenberg evolution of observables describable using explicit operator deformations. In this way, one can obtain quantized electromagnetism as a measurement …
Stretchable Artificial Muscles From Coiled Polymer Fibers, Geoffrey M. Spinks
Stretchable Artificial Muscles From Coiled Polymer Fibers, Geoffrey M. Spinks
Faculty of Engineering and Information Sciences - Papers: Part A
Soft robots are being developed to mimic the movement of biological organisms and as wearable garments to assist human movement in rehabilitation, training, and tasks encountered in functional daily living. Stretchable artificial muscles are well suited as the active mechanical element in soft wearable robotics, and here the performance of highly stretchable and compliant polymer coil muscles are described and analyzed. The force and displacements generated by a given stimulus are shown to be determined by the external loading conditions and the main material properties of free stroke and stiffness. Spring mechanics and a model based on a single helix …
Surface Modification Of Steel Using Automotive Waste As Raw Materials, Farshid Pahlevani, Rian J. Dippenaar, Narjes Gorjizadeh, Sagar Cholake, Rumana Hossain, Rahul Kumar, Veena Sahajwalla
Surface Modification Of Steel Using Automotive Waste As Raw Materials, Farshid Pahlevani, Rian J. Dippenaar, Narjes Gorjizadeh, Sagar Cholake, Rumana Hossain, Rahul Kumar, Veena Sahajwalla
Faculty of Engineering and Information Sciences - Papers: Part A
It is usually not economically feasible to utilize conventional sorting and recycling techniques to treat complex industrial waste due to the heterogeneous nature thereof and hence, it is mostly discarded of by landfilling. In the present study, complex wastes derived from the automobile industry have been used as an input stream for the modification of steel surfaces. High abrasion and corrosion resistance steels have attracted much interest in industrial applications because costs associated with product failure can be minimized. Although these classes of steel increase the abrasion and corrosion resistance, they contain expensive alloying elements that increase cost and in …
Spinel Oxide Cathode Material For High Power Lithium Ion Batteries For Electrical Vehicles, Xi Ke, Zhuozhuo Zhao, Jun Liu, Liying Liu, Zhicong Shi, Yunyong Li, Lingyu Zhang, Haiyan Zhang, Zaiping Guo
Spinel Oxide Cathode Material For High Power Lithium Ion Batteries For Electrical Vehicles, Xi Ke, Zhuozhuo Zhao, Jun Liu, Liying Liu, Zhicong Shi, Yunyong Li, Lingyu Zhang, Haiyan Zhang, Zaiping Guo
Faculty of Engineering and Information Sciences - Papers: Part A
Electrical Vehicles (EVs) are very important in reducing fossil oil consumption and carbon emission in cities. Spinel LiNi0.5Mn1.5O4 is one promising cathode material for lithium ion batteries used in EVs owing to its high power density. Here AlF3 coated LiNi0.5Mn1.5O4 is prepared through an newly developed method. The spinel oxide sintered at 900 ̊C presents the best electrochemical performance with a specific discharge capacity of 132.4 mAh/g at 0.5 C. 81.0% of the initial specific capacity can be retained after 50 cycles. AlF3 coating can further improve the …
Terahertz Spectroscopic Characterization For Carbon-Based Materials, Hao Zhang, Josip Horvat, R A. Lewis
Terahertz Spectroscopic Characterization For Carbon-Based Materials, Hao Zhang, Josip Horvat, R A. Lewis
Faculty of Engineering and Information Sciences - Papers: Part A
Poster presentation - We investigate carbon-based materials (graphite, graphite nanofibers and multi-walled carbon nanotubes) using terahertz time-domain spectroscopy (THz-TDS). The THz-TDS of carbon-based materials has been especially useful for understanding of many fundamental physical properties (e.g. the electronic structure and electron-phonon interactions, etc.) of all sp2 carbons, given that carbon-based materials can be either semiconducting or metallic depending on their geometric structures. A significant difference was obtained in the spectra of graphite nanofibers as compared to the multi-walled carbon nanotubes and graphite.
Synchrotron Activation Radiotherapy: Effects Of Dose-Rate And Energy Spectra To Tantalum Oxide Nanoparticles Selective Tumour Cell Radiosensitization Enhancement, Elette Engels, Michael L. F Lerch, Moeava Tehei, Konstantin K. Konstantinov, Susanna Guatelli, Anatoly B. Rosenfeld, Stephanie Corde
Synchrotron Activation Radiotherapy: Effects Of Dose-Rate And Energy Spectra To Tantalum Oxide Nanoparticles Selective Tumour Cell Radiosensitization Enhancement, Elette Engels, Michael L. F Lerch, Moeava Tehei, Konstantin K. Konstantinov, Susanna Guatelli, Anatoly B. Rosenfeld, Stephanie Corde
Faculty of Engineering and Information Sciences - Papers: Part A
Synchrotron radiation is unique in its ability to deliver dose at high dose rates using kiloelectronvolt photons. We are investigating the use of Tantalum pentoxide (Ta2O5) nano-structured particles (NSPs) that are to date unexplored in synchrotron radiation fields as they have high atomic number (Z=73) are biocompatible and are therefore potential radio sensitizers. We exposed cell culture flasks containing 9L gliosarcoma tumour cells or Madin-Darby Canine Kidney (MDCK) non-tumour cells to the NSPs and treated the cells using a broad synchrotron beam (140 keV median energy; average dose rate of 50 Gy/s) at the Australian Synchrotron. We compare the results …
Vulnerability Analysis Of Hydrological Infrastructure To Flooding In Coastal Cities - A Graph Theory Approach, Robert Ighodaro Ogie, Tomas Holderness, Sarah Dunn, Etienne Turpin
Vulnerability Analysis Of Hydrological Infrastructure To Flooding In Coastal Cities - A Graph Theory Approach, Robert Ighodaro Ogie, Tomas Holderness, Sarah Dunn, Etienne Turpin
Faculty of Engineering and Information Sciences - Papers: Part A
Hydrological infrastructure such as pumps and floodgates are invaluable assets for mitigating flooding in coastal cities. These infrastructure components are often vulnerable to damage or failure due to the impact of flood waters, thus exacerbating the flood hazards and causing significant loss of life and destruction to property worth billions of dollars. Hence, there is a growing need worldwide to enhance the understanding of flood vulnerability and to develop key metrics for assessing it. This study proposes an approach for measuring the vulnerability of hydrological infrastructure to flood damage in coastal cities. In this approach, a hydrological infrastructure flood vulnerability …
Subject-Adaptive Integration Of Multiple Sice Brain Networks With Different Sparsity, Jianjia Zhang, Luping Zhou, Lei Wang
Subject-Adaptive Integration Of Multiple Sice Brain Networks With Different Sparsity, Jianjia Zhang, Luping Zhou, Lei Wang
Faculty of Engineering and Information Sciences - Papers: Part A
As a principled method for partial correlation estimation, sparse inverse covariance estimation (SICE) has been employed to model brain connectivity networks, which holds great promise for brain disease diagnosis. For each subject, the SICE method naturally leads to a set of connectivity networks with various sparsity. However, existing methods usually select a single network from them for classification and the discriminative power of this set of networks has not been fully exploited. This paper argues that the connectivity networks at different sparsity levels present complementary connectivity patterns and therefore they should be jointly considered to achieve high classification performance.In this …
Efficient Randomized Regular Modular Exponentiation Using Combined Montgomery And Barrett Multiplications, Andrea Lesavourey, Christophe Negre, Thomas Plantard
Efficient Randomized Regular Modular Exponentiation Using Combined Montgomery And Barrett Multiplications, Andrea Lesavourey, Christophe Negre, Thomas Plantard
Faculty of Engineering and Information Sciences - Papers: Part A
Copyright 2016 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved.Cryptographic operations performed on an embedded device are vulnerable to side channel analysis and particularly to differential and correlation power analysis. The basic protection against such attacks is to randomize the data all along the cryptographic computations. In this paper we present a modular multiplication algorithm which can be used for randomization. We show that we can use it to randomize the modular exponentiation of the RSA cryptosystem. The proposed randomization is free of computation and induces a level of randomization from 210 to 215 for practical RSA …
Multiple Kernel Clustering With Local Kernel Alignment Maximization, Miaomiao Li, Xinwang Liu, Lei Wang, Yong Dou, Jianping Yin, En Zhu
Multiple Kernel Clustering With Local Kernel Alignment Maximization, Miaomiao Li, Xinwang Liu, Lei Wang, Yong Dou, Jianping Yin, En Zhu
Faculty of Engineering and Information Sciences - Papers: Part A
Kernel alignment has recently been employed for multiple kernel clustering (MKC). However, we find that most of existing works implement this alignment in a global manner, which: i) indiscriminately forces all sample pairs to be equally aligned with the same ideal similarity; and ii) is inconsistent with a well-established concept that the similarity evaluated for two farther samples in a high dimensional space is less reliable. To address these issues, this paper proposes a novel MKC algorithm with a "local" kernel alignment, which only requires that the similarity of a sample to its k-nearest neighbours be aligned with the ideal …
Cloud Computing Adoption Decision Modelling For Smes: From The Paprika Perspective, Salim Alismaili, Mengxiang Li, Jun Shen
Cloud Computing Adoption Decision Modelling For Smes: From The Paprika Perspective, Salim Alismaili, Mengxiang Li, Jun Shen
Faculty of Engineering and Information Sciences - Papers: Part A
Springer Science+Business Media Singapore 2016.The popularity of cloud computing has been growing among enterprises since its inception. It is an emerging technology which promises competitive advantages, significant cost savings, enhanced business processes and services, and various other benefits. The aim of this paper is to propose a decision modelling using Potentially All Pairwise RanKings of all possible Alternatives (PAPRIKA) for the factors that have impact in SMEs cloud computing adoption process.
Comment On "Secure Quantum Private Information Retrieval Using Phase-Encoded Queries", Runhua Shi, Yi Mu, Hong Zhong, Shun Zhang
Comment On "Secure Quantum Private Information Retrieval Using Phase-Encoded Queries", Runhua Shi, Yi Mu, Hong Zhong, Shun Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
2016 American Physical Society.In this Comment, we reexamine the security of phase-encoded quantum private query (QPQ). We find that the current phase-encoded QPQ protocols, including their applications, are vulnerable to a probabilistic entangle-and-measure attack performed by the owner of the database. Furthermore, we discuss how to overcome this security loophole and present an improved cheat-sensitive QPQ protocol without losing the good features of the original protocol.
Australia's National Health Programs: An Ontological Mapping, Arkalgud Ramaprasad, Khin Than Win, Thant Syn, Ghassan Beydoun, Linda Dawson
Australia's National Health Programs: An Ontological Mapping, Arkalgud Ramaprasad, Khin Than Win, Thant Syn, Ghassan Beydoun, Linda Dawson
Faculty of Engineering and Information Sciences - Papers: Part A
Australia has a large number of health program initiatives whose comprehensive assessment will help refine and redefine priorities by highlighting areas of emphasis, under-emphasis, and non-emphasis. The objectives of our research are to: (a) systematically map all the programs onto an ontological framework, and (b) systemically analyse their relative emphases at different levels of granularity. We mapped all the health program initiatives onto an ontology with five dimensions, namely: (a) Policy-scope, (b) Policy-focus, (c) Outcomes, (d) Type of care, and (e) Population served. Each dimension is expanded into a taxonomy of its constituent elements. Each combination of elements from the …
Image Descriptors From Convnets: Comparing Global Pooling Methods For Image Retrieval, Ian Comor, Yan Zhao, Zhimin Gao, Luping Zhou, Lei Wang
Image Descriptors From Convnets: Comparing Global Pooling Methods For Image Retrieval, Ian Comor, Yan Zhao, Zhimin Gao, Luping Zhou, Lei Wang
Faculty of Engineering and Information Sciences - Papers: Part A
2016 IEEE.A major component of a generic image retrieval pipeline is producing concise and effective descriptors for each image. Previous works have shown impressive results in image retrieval when using descriptors from the black-box output of the fully-connected stage of pretrained Convolutional Neural Networks (ConvNets). However, previous work on descriptors pooled from the deep feature maps from late convolutional layers can produce more discriminative descriptors for generic image retrieval, while being relatively concise. When planning to globally pool such feature maps from a ConvNet, some options to consider are (1) the depth of the network, (2) choice of layer to …
Facilitating Student And Staff Engagement Across Multiple Offshore Campuses For Transnational Education Using An Immersive Video Augmented Learning Platform, Sasha Nikolic, Wanqing Li
Facilitating Student And Staff Engagement Across Multiple Offshore Campuses For Transnational Education Using An Immersive Video Augmented Learning Platform, Sasha Nikolic, Wanqing Li
Faculty of Engineering and Information Sciences - Papers: Part A
Opportunities in transnational education have been growing across the higher education sector. The incentive for institutions to explore opening offshore satellite campuses includes access to more students and building the institutions reputation across the globe. A number of risks are also associated with transnational education, especially in terms of quality. It is important that students across all campuses receive the same high standard of education. That is, students at offshore campuses should not be placed at a disadvantage compared to students studying at the institutions main campus. This paper explores the possibility of providing students from offshore campuses better access …
Exploring Virtual World Innovations And Design Through Learner Voices, Sue Gregory, Brent Gregory, Marcus Mcdonald, Sasha Nikolic, Helen Farley, Judy O'Connell, Des Butler, Lisa Jacka, Scott Grant, Jay Jay Jegathesan
Exploring Virtual World Innovations And Design Through Learner Voices, Sue Gregory, Brent Gregory, Marcus Mcdonald, Sasha Nikolic, Helen Farley, Judy O'Connell, Des Butler, Lisa Jacka, Scott Grant, Jay Jay Jegathesan
Faculty of Engineering and Information Sciences - Papers: Part A
Student voice has played a big role in shaping the development and measure of success/failure of virtual worlds in education. Data on past and ongoing educational uses and contexts of use of virtual worlds and associated student feedback was gathered via a survey of educational researchers specialising in virtual worlds. Introduced are a range of specific uses that provide the source of and context for student feedback. Ten major themes emerged from student voices that highlight strengths and weakness and point the way forward for both educators and the students themselves. Positive feedback highlighted experiences of both pedagogical design and …