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Articles 1951 - 1980 of 2936
Full-Text Articles in Social and Behavioral Sciences
A Decentralized Service Discovery Approach On Peer-To-Peer Network, Qiang He, Jun Yan, Yun Yang, Ryszard Kowalczyk, Hai Jin
A Decentralized Service Discovery Approach On Peer-To-Peer Network, Qiang He, Jun Yan, Yun Yang, Ryszard Kowalczyk, Hai Jin
Faculty of Engineering and Information Sciences - Papers: Part A
Service-Oriented Computing (SOC) is emerging as a paradigm for developing distributed applications. A critical issue of utilizing SOC is to have a scalable, reliable, and robust service discovery mechanism. However, traditional service discovery methods using centralized registries can easily suffer from problems such as performance bottleneck and vulnerability to failures in large scalable service networks, thus functioning abnormally. To address these problems, this paper proposes a peer-to-peer-based decentralized service discovery approach named Chord4S. Chord4S utilizes the data distribution and lookup capabilities of the popular Chord to distribute and discover services in a decentralized manner. Data availability is further improved by …
Trace Elements In The Si Furnace-Part Ii: Analysis Of Condensate In Carbothermal Reduction Of Quartz, Elena Dal Martello, Gabriella Tranell, Oleg Ostrovski, Guangqing Zhang, Ola Raaness, Rune Berg Larsen, Kai Tang, Pramod Koshy
Trace Elements In The Si Furnace-Part Ii: Analysis Of Condensate In Carbothermal Reduction Of Quartz, Elena Dal Martello, Gabriella Tranell, Oleg Ostrovski, Guangqing Zhang, Ola Raaness, Rune Berg Larsen, Kai Tang, Pramod Koshy
Faculty of Engineering and Information Sciences - Papers: Part A
Silicon feedstock for production of solar-grade silicon should be as pure as possible to decrease the cost of manufacturing of solar cells. Impurities in quartz, carbonaceous materials, electrodes, and refractories are mostly present in the form of oxides. These oxides can be reduced to volatile gaseous compounds in presence of SiO(g) and CO(g) atmosphere and potentially leave the furnace or stay in the condensed reaction products, metal, and slag. This work investigates the conditions under which volatile impurities report to the gas phase in laboratory experiments with lumpy and pelletized mixtures of SiO2, SiC, and Si at 1923 K and …
Aluminium Production Route Through Carbosulfidation Of Alumina Utilising H2s, Nazmul Huda, M Akbar Rhamdhani, G A. Brooks, B J. Monaghan, L Prentice
Aluminium Production Route Through Carbosulfidation Of Alumina Utilising H2s, Nazmul Huda, M Akbar Rhamdhani, G A. Brooks, B J. Monaghan, L Prentice
Faculty of Engineering and Information Sciences - Papers: Part A
Indirect carbothermal reduction of alumina for the production of aluminum utilizes different reducing agents to convert alumina into intermediate aluminum compounds. In the present study, the carbosulfidation route for aluminum production utilizing H2S(g) as the reductant and sulfur source has been investigated, in particular the formation of AhS3 in the first step of the process. The results of the thermodynamic analysis predicted that conversion of Ah03(S) to AhS3(l) significantly increases above 1400°C at 1 atmosphere pressure. Experimental investigations were carried out at temperatures of 1100 to 1500°C using dilute H2S(g) gas in argon. The reaction products were analyzed using scanning …
The Effect Of Slag Basicity On Spinal Inclusion Wettability, Hamed Abdeyazdan, Brian J. Monaghan, Neslihan Dogan, M Akbar Rhamdhani
The Effect Of Slag Basicity On Spinal Inclusion Wettability, Hamed Abdeyazdan, Brian J. Monaghan, Neslihan Dogan, M Akbar Rhamdhani
Faculty of Engineering and Information Sciences - Papers: Part A
Steel cleanness is an important and growing research area driven by the demands to produce high quality steel. Inclusion content in steel is an important criterion to assess clean steel. MgO.Ah03 spinel inclusions cause problems in steel processing and are generally deleterious to steel products due to their high melting point and high hardness. Jnclusions are generally r· moved by rea ting with slag. This is primarily achieved by optimizing lhe PI' 'ess omliLions to promote contact and reaction between the inclusion and S,l,lg '. or efticient rem val from the steel the inclusions must attach to and dissolve in …
Enhanced Rate Performance Of Cobalt Oxide/Nitrogen Doped Graphene Composite For Lithium Ion Batteries, Dan Li, Dongqi Shi, Zhixin Chen, Hua-Kun Liu, Dianzeng Jia, Zaiping Guo
Enhanced Rate Performance Of Cobalt Oxide/Nitrogen Doped Graphene Composite For Lithium Ion Batteries, Dan Li, Dongqi Shi, Zhixin Chen, Hua-Kun Liu, Dianzeng Jia, Zaiping Guo
Faculty of Engineering and Information Sciences - Papers: Part A
Ultrafine Co3O4 nanocrystals homogeneously attached to nitrogen doped reduced graphene oxide (rGO) by the hydrothermal reaction method are demonstrated as anode materials for lithium ion batteries. Transmission electron microscope images revealed that the crystal size of Co3O4 in Co3O4/N-rGO and Co3O4/rGO is 5-10 nm, much smaller than that of bare Co3O4, indicating that the reduced graphene oxide sheets with Co3O4 nanocrystals attached could hinder the growth and aggregation of Co3O4 crystals during synthesis. The graphene sheets can also effectively buffer the volume change of Co3O4 upon lithium insertion/extraction, thus improving the cycling performance of the composite electrodes. The doped nitrogen …
Laboratory Study Of Small-Strain Behavior Of A Compacted Silty Sand, Ana Heitor, Buddhima Indraratna, Cholachat Rujikiatkamjorn
Laboratory Study Of Small-Strain Behavior Of A Compacted Silty Sand, Ana Heitor, Buddhima Indraratna, Cholachat Rujikiatkamjorn
Faculty of Engineering and Information Sciences - Papers: Part A
Small-strain behavior is a key indicator for assessing the performance of compacted fills. Compaction conditions, i.e., initial moisture content and applied energy, govern compaction effectiveness and thus, the structure and matric suction of compacted soil. This paper presents an experimental study of the small-strain behavior of compacted silty sand prepared with different compaction conditions. Specimens with varying initial moisture contents and compaction energies were tested with bender elements to determine the small-strain shear modulus (G0), while the post-compaction matric suction was measured using the filter paper method and tensiometer. The experimental data suggest a pronounced relationship between G0 and the …
Numerical Solution Of Stone Column Improved Soft Soil Considering Arching, Clogging And Smear Effects, Buddhima Indraratna, Sudip Basack, Cholachat Rujikiatkamjorn
Numerical Solution Of Stone Column Improved Soft Soil Considering Arching, Clogging And Smear Effects, Buddhima Indraratna, Sudip Basack, Cholachat Rujikiatkamjorn
Faculty of Engineering and Information Sciences - Papers: Part A
Improvement of soft clay deposits by the installation of stone columns is one of the most popular techniques followed worldwide. The stone columns not only act as reinforcingmaterial increasing the overall strength and stiffness of the compressible soft soil, but they also promote consolidation through effective drainage. The analytical and numerical solutions available for ascertaining the response of column-reinforced soil have been developed on the basis of the equal strain hypothesis. For typical surcharge (embankment) loading, the free strain analysis appears to give more realistic results comparable to field data. The paper presents a novel numericalmodel (finite-differencemethod) to analyze the …
Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech
Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech
Faculty of Engineering and Information Sciences - Papers: Part A
The effects of feed and draw solution temperature and transmembrane temperature difference on the rejection of 12 trace organic contaminants (TrOCs) by two forward osmosis (FO) membranes were investigated. The membrane structure parameter (S) and the reverse salt (NaCl) flux selectivity (RSFS) were constant over the temperature range of 20-40 1C, suggesting that within this range, the solution temperature did not significantly influence the membrane polymeric structure. Draw solution properties, including diffusivity, viscosity, and osmotic pressure, played an important role in water and reverse salt (NaCl) flux behaviour and TrOC rejection. Pure water and salt (NaCl) permeability coefficients of the …
Microstructure And Mechanical Properties Of 1050/6061 Laminated Composite Processed By Accumulative Roll Bonding, Lihong Su, Cheng Lu, Guanyu Deng, A K. Tieu, Xudong Sun
Microstructure And Mechanical Properties Of 1050/6061 Laminated Composite Processed By Accumulative Roll Bonding, Lihong Su, Cheng Lu, Guanyu Deng, A K. Tieu, Xudong Sun
Faculty of Engineering and Information Sciences - Papers: Part A
1050/6061 laminated composite sheets have been fabricated by the accumulative roll bonding (ARB) using commercial 1050 and 6061 aluminium alloys. Through-thickness hardness and tensile testes have been conducted to examine the mechanical properties of the laminated composites. It has been found that the strength of the composite materials is between the strengths of 6061 and 1050 primary materials. The average hardness of the 6061 layer is almost twice of the average value of the 1050 layer for both one and two-cycle processed composites. Optical microscopy, scanning electron microscopy and transmission electron microscopy were used to evaluate the microstructure of the …
The Role Of Geosynthetics In Improving The Behaviour Of Ballasted Rail Tracks, Buddhima Indraratna, Sanjay Shrawan Nimbalkar
The Role Of Geosynthetics In Improving The Behaviour Of Ballasted Rail Tracks, Buddhima Indraratna, Sanjay Shrawan Nimbalkar
Faculty of Engineering and Information Sciences - Papers: Part A
This chapter contains a laboratory assessment of the role of geosynthetics in the performance of railway ballast. The main objectives of this testing were to examine the actual potential of selected geosynthetic products for ballast stabilisation. A series of cyclic drained tests were carried out using a large scale prismoidal triaxial apparatus that was designed and built at the University of Wollongong, and is the most innovative cyclic process simulation testing equipment available in the world today. The effects of different types of geosynthetics, including bi-axial geogrid, non-woven geotextile and geocomposite (a combination of bi-axial geogrid and non-woven geotextile) have …
Winkler Model For Dynamic Response Of Composite Caisson-Piles Foundations: Lateral Response, Rui Zhong, Maosong Huang
Winkler Model For Dynamic Response Of Composite Caisson-Piles Foundations: Lateral Response, Rui Zhong, Maosong Huang
Faculty of Engineering and Information Sciences - Papers: Part A
As the first part of a sequence focusing on the dynamic response of composite caisson-piles foundations (CCPFs1), this paper develops a simplified method for the lateral response of these foundations. A Winkler model for the lateral vibration of the CCPF is created by joining the two components, the caisson and the pile group, where the four-spring Winkler model is utilized for the caisson and axial-lateral coupled vibration equations are derived for the pile group. For determining the coefficients of the four-spring Winkler model for the caissons, embedded footing impedance is used and a modification on the rotational embedment factor is …
Some New Constructions Of Orthogonal Designs, Tianbing Xia, Jennifer Seberry, Mingyuan Xia, Shangli Zhang
Some New Constructions Of Orthogonal Designs, Tianbing Xia, Jennifer Seberry, Mingyuan Xia, Shangli Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper we construct OD(4pqr(q+1); pqr, pqr, pqr, pqr, pqr+1, pqr+1, pqr+1, pqr+1) for each core order q ≡ 3(mod 4), r ≥ 0 or q = 1, p odd, p ≤ 21 and p ∈ {25, 49}, and COD(2qr(q + 1); qr, qr, qr+1, qr+1) for any prime power q ≡ 1 (mod 4) (including q = 1), r ≥ 0.
Fully Nonlinear Curvature Flow Of Axially Symmetric Hypersurfaces With Boundary Conditions, James Mccoy, Fatemah Mofarreh, Graham Williams
Fully Nonlinear Curvature Flow Of Axially Symmetric Hypersurfaces With Boundary Conditions, James Mccoy, Fatemah Mofarreh, Graham Williams
Faculty of Engineering and Information Sciences - Papers: Part A
Inspired by earlier results on the quasilinear mean curvature flow, and recent investigations of fully nonlinear curvature flow of closed hypersurfaces which are not convex, we consider contraction of axially symmetric hypersurfaces by convex, degree-one homogeneous fully nonlinear functions of curvature. With a natural class of Neumann boundary conditions, we show that evolving hypersurfaces exist for a finite maximal time. The maximal time is characterised by a curvature singularity at either boundary. Some results continue to hold in the cases of mixed Neumann-Dirichlet boundary conditions and more general curvature-dependent speeds.
Characterisation Of Metal Deposition During Additive Manufacturing Of Ti-6al-4v By Arc-Wire Methods, Nicholas Hoye, E C. Appel, Dominic Cuiuri, Hejie Li
Characterisation Of Metal Deposition During Additive Manufacturing Of Ti-6al-4v By Arc-Wire Methods, Nicholas Hoye, E C. Appel, Dominic Cuiuri, Hejie Li
Faculty of Engineering and Information Sciences - Papers: Part A
This study considers the use of the gas tungsten arc (GTA) welding process in conjunction with 'cold' wire addition to give layer-wise build-up of thin walled structures, simulating those commonly found in aerospace applications, which may in the future be manufactured by additive means. Taguchi DOE and multiple regression analysis methods have been applied to quantitatively establish relationships between common process parameters including arc length, arc current, travel speed and wire feed speed and resulting weld bead geometries and actual metal deposition rates. Mathematical expressions for build-up height, thickness and surface roughness are presented and evaluated against experimental data, with …
Social Media Influence On Viewer Engagement, Mark Freeman, Matthew Halliwell, Alison E. Freeman
Social Media Influence On Viewer Engagement, Mark Freeman, Matthew Halliwell, Alison E. Freeman
Faculty of Engineering and Information Sciences - Papers: Part A
Society is being reshaped through Social Media. The case of Social Media integration into the London 2012 Olympics mainstream media coverage is used to demonstrate this. Social Media has modified television viewing from a passive to an active activity. It has also allowed opinions to be shared more quickly and broadly. Analysis of practical examples through the theoretical lens of sociomateriality demonstrates that greater use of the components in the 'Theoretical Framework of Member Needs' reflect the presence of viewers who are more active. This paper discusses the inability to separate the use of technology from its social context, the …
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Public Procurement And Ict Accessibility, Gunela Astbrink, William Tibben
Public Procurement And Ict Accessibility, Gunela Astbrink, William Tibben
Faculty of Engineering and Information Sciences - Papers: Part A
Government purchasing of ICT products and services is termed public procurement. Including accessibility criteria in the procurement process may improve employment opportunities in government for people with disabilities and could have flow-on effects for increased accessibility of products in the marketplace. This paper outlines a research project investigating the current status of legislation, regulation and policy of ICT accessibility criteria in public procurement in OECD countries. The research finds that voluntary government schemes were not successful. Mandatory processes based on uniform global standards coupled with compliance will have an impact.
Travel Distance Judgment: An Environmental Distance Information Cognitive Processing Perspective, Mengxiang Li, Chuan-Hoo Tan, Kwok-Kee Wei
Travel Distance Judgment: An Environmental Distance Information Cognitive Processing Perspective, Mengxiang Li, Chuan-Hoo Tan, Kwok-Kee Wei
Faculty of Engineering and Information Sciences - Papers: Part A
A consumer makes travel distance judgment to determine the place to visit. Stores that gain favorable travel distance judgment could gain access to a large volume of customer base. Travel distance judgment is often made with the aid of technologies, such as the mobile location-based service (LBS). In the present research-in-progress, we build on the human's environmental distance information cognitive processing model to propose how the travel distance information and visual geospatial information jointly influence a consumer's travel distance judgment. We posit that the combination of direct-distance travel information and destination visual reachable geospatial information (2D-map) could result in favorable …
Helpfulness Of Online Product Reviews As Seen By Consumers: Source And Content Features, Mengxiang Li, Liqiang Huang, Chuan-Hoo Tan, Kwok-Kee Wei
Helpfulness Of Online Product Reviews As Seen By Consumers: Source And Content Features, Mengxiang Li, Liqiang Huang, Chuan-Hoo Tan, Kwok-Kee Wei
Faculty of Engineering and Information Sciences - Papers: Part A
Online product reviews are important determinants of consumers' purchase decision. Although prior research has articulated various benefits of online product reviews, there are few investigations into whether or not they are perceived as helpful by consumers. Product review helpfulness is conceptualized as a second-order formative construct, which is manifested by perceived source credibility, perceived content diagnosticity, and perceived vicarious expression of the product review. In this study, we conduct a laboratory experiment to investigate product review helpfulness as well as its corresponding antecedents from the product review feature perspective (i.e., source- and content-based review features). Findings from the study are …
Service Quality, Citizen Satisfaction, And Loyalty With Self-Service Delivery Options To Transforming E-Government Services, Akemi Chatfield, Jazem Alanazi
Service Quality, Citizen Satisfaction, And Loyalty With Self-Service Delivery Options To Transforming E-Government Services, Akemi Chatfield, Jazem Alanazi
Faculty of Engineering and Information Sciences - Papers: Part A
With the growing recognition of the citizen's role in service demand and self-service delivery, there is an increased impetus on building citizen satisfaction and loyalty with government's e-services. With the global trend in transforming government services through e-government, research on citizen interactions with web-based selfservice delivery options has been recently emerging in IS and e-government literatures. This study aims to contribute to post-adoption research by developing a model of citizen loyalty with government online self-service delivery options. We empirically test the proposed model through an analysis of 402 survey data collected from Saudi citizens/users of e-government transactional services. Multiple regression …
The Game Of Information Systems Higher Education, Mark Freeman, Alison E. Freeman
The Game Of Information Systems Higher Education, Mark Freeman, Alison E. Freeman
Faculty of Engineering and Information Sciences - Papers: Part A
With continual changes in higher education in the field of Information Systems (IS), educators are faced with the question: how can we actively engage each learner in a way that encourages self-direction while developing the ability to independently solve problems? The unique learning characteristics of adult learners must each be considered in the design of learning experiences in higher education environments. Gamification - the use of gaming elements in non-gaming contexts - is one source of opportunities for new and interesting learning experiences. Through discussion of 12 major gaming elements, this paper considers whether gamification can create innovative learning environments …
A Novel Method Of Embedding Additional Information Into Tensor Diffusion Filtering As An Application For Multi-Modal Reconstruction In Et, D Kazantsev, Sebastien Ourselin, Brian F. Hutton, W. R B. Lionheart, Simon Arridge
A Novel Method Of Embedding Additional Information Into Tensor Diffusion Filtering As An Application For Multi-Modal Reconstruction In Et, D Kazantsev, Sebastien Ourselin, Brian F. Hutton, W. R B. Lionheart, Simon Arridge
Faculty of Engineering and Information Sciences - Papers: Part A
The fast development of hybrid imaging modalities in tomography, such as SPECT (single photon emission computed tomography)/CT (computed tomography), PET (positron emission tomography)/MRI (magnetic resonance imaging) and PET/CT, have increased an interest for reconstruction algorithms which are able to utilize a functional and anatomical information at the same time. In this paper a new method proposed for iterative reconstruction with anatomical prior in emission tomography (ET). The introduced regularization term is a modified anisotropic tensor diffusion filter which has shape-adapted smoothing properties. The filter accommodates available anatomical information which results in enhanced position and image dependent spatial resolution of emission …
Transition Of Ductile And Brittle Fracture During Dwtt By Fem, Youyou Wu, Hailiang Yu, Cheng Lu, A Kiet Tieu, Ajit Godbole, Guillaume Michal
Transition Of Ductile And Brittle Fracture During Dwtt By Fem, Youyou Wu, Hailiang Yu, Cheng Lu, A Kiet Tieu, Ajit Godbole, Guillaume Michal
Faculty of Engineering and Information Sciences - Papers: Part A
Globally, steel pipelines are widely used to transport energy in the form of liquid petroleum and natural gas. The steel used in the manufacture of these pipelines must have high strength and toughness, and high resistance to fracture. The Drop Weight Tear Test (DWTT) is the most widely used test to assess brittle fracture characteristics in steel. The zones of ductile and brittle fracture during DWTT characterize the quality of pipeline steels. In this paper, the Gurson-Tvergaard-Needleman (GTN) fracture models are coupled in a Finite Element model. The ductile and brittle fracture zones in the samples are analyzed under different …
Improving Graph Matching Via Density Maximization, Chao Wang, Lei Wang, Lingqiao Liu
Improving Graph Matching Via Density Maximization, Chao Wang, Lei Wang, Lingqiao Liu
Faculty of Engineering and Information Sciences - Papers: Part A
Graph matching has been widely used in various applications in computer vision due to its powerful performance. However, it poses three challenges to image sparse feature matching: (1) The combinatorial nature limits the size of the possible matches, (2) It is sensitive to outliers because the objective function prefers more matches, (3) It works poorly when handling many-to-many object correspondences, due to its assumption of one single cluster for each graph. In this paper, we address these problems with a unified framework-Density Maximization. We propose a graph density local estimator (DLE) to measure the quality of matches. Density Maximization aims …
A Scalable Unsupervised Feature Merging Approach To Efficient Dimensionality Reduction Of High-Dimensional Visual Data, Lingqiao Liu, Lei Wang
A Scalable Unsupervised Feature Merging Approach To Efficient Dimensionality Reduction Of High-Dimensional Visual Data, Lingqiao Liu, Lei Wang
Faculty of Engineering and Information Sciences - Papers: Part A
To achieve a good trade-off between recognition accuracy and computational efficiency, it is often needed to reduce high-dimensional visual data to medium-dimensional ones. For this task, even applying a simple full-matrix-based linear projection causes significant computation and memory use. When the number of visual data is large, how to efficiently learn such a projection could even become a problem. The recent feature merging approach offers an efficient way to reduce the dimensionality, which only requires a single scan of features to perform reduction. However, existing merging algorithms do not scale well with high-dimensional data, especially in the unsupervised case. To …
Are You Smart Enough For Your Smart Phone? A Cognitive Load Comparison, Fayez Alshehri, Mark Freeman, Alison E. Freeman
Are You Smart Enough For Your Smart Phone? A Cognitive Load Comparison, Fayez Alshehri, Mark Freeman, Alison E. Freeman
Faculty of Engineering and Information Sciences - Papers: Part A
The popularity of mobile devices, and particularly smart phones, has been driven by rapid developments in their power, capabilities and features. However, these developments create new and additional demands on users. Increased attention and more complex thought patterns are required to interact with such technology. Testing three popular smart phones, this research applies the principles of Cognitive Load Theory to evaluate the impact of varied operating systems and interaction modes on users' cognitive load. NASA Task Load Index was used to measure participants' perceptions of the cognitive load imposed by interaction with these mobile devices. While different operating systems were …
For A Minor Ornithology, Etienne Turpin
For A Minor Ornithology, Etienne Turpin
Faculty of Engineering and Information Sciences - Papers: Part A
As part of the 15th Jakarta Biennale - Siasat - we curated the performance and installation piece For a Minor Ornithology at the Pasar Burumg Pramuka in Jakarta, Indonesia. Accompanying the performances are a series of diagrams designed with Jono Sturt of HTCHBCK (below), and an essay written with curator Anna-Sophie Springer. The essay, "Some Notes For a Minor Ornithology," considers the remarkable role of avifauna in the history of European scientific experiments, public museum displays, and taxidermy practices.
Microsimulation Study Of The Release Of Pneumonic Plague And Smallpox On A Synthetic Civilian Population, A Green, I Piper, D Keep
Microsimulation Study Of The Release Of Pneumonic Plague And Smallpox On A Synthetic Civilian Population, A Green, I Piper, D Keep
Faculty of Engineering and Information Sciences - Papers: Part A
The confrontation in Syria is a cause for concern over the use of chemical and biological weapons. There have been reports of the use of chemical weapons including Sarin. While both sides accuse each other, there is very little ground evidence at this time (August 2013) to substantiate claims or to determine who is involved. Their use would demonstrate a total disregard for civilian casualties and UN conventions. Syria is thought to have stockpiles of a number of agents including anthrax, plague, tularaemia, botulinium, smallpox and cholera (Gordon, 2007). Some groups sympathetic to Al Qaeda might also have access to …
Public-Key Encryption Resilient To Linear Related-Key Attacks, Hui Cui, Yi Mu, Man Ho Au
Public-Key Encryption Resilient To Linear Related-Key Attacks, Hui Cui, Yi Mu, Man Ho Au
Faculty of Engineering and Information Sciences - Papers: Part A
In this paper, we consider the security of public-key encryption schemes under linear related-key attacks, where an adversary is allowed to tamper the private key stored in a hardware device, and subsequently observe the outcome of a public-key encryption system under this modified private key. Following the existing work done in recent years, we define the security model for related-key attack (RKA) secure public-key encryption schemes as chosen-ciphertext and related-key attack (CC-RKA) security, in which we allow an adversary to issue queries to the decryption oracle on the linear shifts of the private keys. On the basis of the adaptive …
Mip-Based Stochastic Security-Constrained Daily Hydrothermal Generation Scheduling, J Aghaei, M Karami, K M. Muttaqi, A Ahmadi, H A. Shayanfar
Mip-Based Stochastic Security-Constrained Daily Hydrothermal Generation Scheduling, J Aghaei, M Karami, K M. Muttaqi, A Ahmadi, H A. Shayanfar
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents the application of a mixedinteger programming (MIP) approach for solving stochastic security-constrained daily hydrothermal generation scheduling (SCDHGS). Power system uncertainties including generating units and branch contingencies and load uncertainty are explicitly considered in the stochastic programming of SCDHGS. The roulette wheel mechanism and lattice Monte Carlo simulation (LMCS) are first employed for random scenario generation wherein the stochastic SCDHGS procedure is converted into its respective deterministic equivalents (scenarios). Then, the generating units are scheduled through MIP over the set of deterministic scenarios for the purpose of minimizing the cost of supplying energy and ancillary services over the …