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Articles 1681 - 1710 of 2936

Full-Text Articles in Social and Behavioral Sciences

Validation Of An Imrt Beam Model Using A Secondary Treatment Planning System As A 3d Dosimeter, A Xing, S Arumugam, L Holloway, G Goozee Jan 2013

Validation Of An Imrt Beam Model Using A Secondary Treatment Planning System As A 3d Dosimeter, A Xing, S Arumugam, L Holloway, G Goozee

Faculty of Engineering and Information Sciences - Papers: Part A

A treatment planning system IMRT beam model is usually validated using phantom-based measurement, however this will not detect errors related to patient anatomy and inhomogeneity. In this study a secondary treatment system (CMS XIO) was used as a 3D dosimeter to verify an IMRT beam model recently commissioned in a Philips Pinnacle treatment planning system. Data sets from three head-neck and two prostate patients previously treated were utilised. The IMRT plans for these patients were planned in Pinnacle and transferred to XIO. The dose at each voxel in the patient volume was calculated in both XIO and Pinnacle. The 2D …


Modeling And Experimental Investigation On The Mechanical Behavior Of A Spiral-Type Capsule In The Small Intestine, Hao Zhou, Gursel Alici, Trung Duc Than, Weihua Li Jan 2013

Modeling And Experimental Investigation On The Mechanical Behavior Of A Spiral-Type Capsule In The Small Intestine, Hao Zhou, Gursel Alici, Trung Duc Than, Weihua Li

Faculty of Engineering and Information Sciences - Papers: Part A

This paper reports on the study of the behavior of the viscoelastic contact between a spiral-type capsule and the small intestine. Both 2D and 3D simulations show that the traction force, which is due to the pressure difference between the two sides of the spirals, is velocity dependent. With an increase in the sliding velocity, the traction force decreases initially due to the reduced stress relaxation. However, if the velocity reaches some certain magnitude, the reduction in the stress becomes negligibly small. The traction force starts to increase because of the higher stress coming from the higher strain rates. The …


Hard Automation Trends In Australian Underground Coal Mines, Stephen Van Duin, Luke Meers, Gary Gibson Jan 2013

Hard Automation Trends In Australian Underground Coal Mines, Stephen Van Duin, Luke Meers, Gary Gibson

Faculty of Engineering and Information Sciences - Papers: Part A

As productivity in coal extraction demands increase in underground coal mines, the industry is faced with finding new ways to support production without jeopardising safety. In modern mines the capacity and scale of longwall coal extraction has steadily increased to a point that support processes are failing to keep pace. In particular, roadway development is continually placed on the critical path of activities which maintain mine production, so any inefficiency in this area is quickly exposed. Original equipment manufacturers are under immense pressure to modify their machines to be more interconnected with each other, with machine communication and logistical sharing …


Three-Dimensional Measurement Of Object Surfaces With Complex Shape And Color Distribution Based On Projection Of Color Fringe Patterns, Ke Chen, Jiangtao Xi, Yanguang Yu, Sheng Tong, Qinghua Guo Jan 2013

Three-Dimensional Measurement Of Object Surfaces With Complex Shape And Color Distribution Based On Projection Of Color Fringe Patterns, Ke Chen, Jiangtao Xi, Yanguang Yu, Sheng Tong, Qinghua Guo

Faculty of Engineering and Information Sciences - Papers: Part A

A challenging issue associated with three-dimensional (3D) fringe patterns profilometry (FPP) is the unwrapping of phase maps resulting from color object surfaces. This paper proposes a new colorprojection-based 3D FPP, making use of the three primary color channels [i.e., red, green, and blue (RGB)] associated with digital projectors. One channel (e.g., red) is used for projecting sinusoidal fringes required by phase shift profilometry (PSP); the other two channels are employed for generating binary stripe patterns. In order to achieve reliable phase unwrapping, each fringe of the sinusoidal patterns is identified by a unique binary sequence. These sequences are then encoded …


Noise Robust Keyword Spotting For User Generated Video Blogs, M S. Barakat, C H. Ritz, D A. Stirling Jan 2013

Noise Robust Keyword Spotting For User Generated Video Blogs, M S. Barakat, C H. Ritz, D A. Stirling

Faculty of Engineering and Information Sciences - Papers: Part A

This paper presents a template-based system for speaker independent key word spotting (KWS) in continuous speech that can help in automatic analysis, indexing, search and retrieval of user generated videos by content. Extensive experiments on clean speech confirm that the proposed approach is superior to a HMM approach when applied to noisy speech with different signal-to-noise ratio (SNR) levels. Experiments conducted to detect swear words, personal names and product names within a set of online user generated video blogs shows significantly better recall and precision results compared to a traditional ASR-based approach.


Espi Filtering Method Based On Anisotropic Coherence Diffusion And Perona-Malik Diffusion, Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, Jiangtao Xi Jan 2013

Espi Filtering Method Based On Anisotropic Coherence Diffusion And Perona-Malik Diffusion, Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, Jiangtao Xi

Faculty of Engineering and Information Sciences - Papers: Part A

Noise reduction is one of the most important concerns in electronic speckle pattern interferometry (ESPI). According to partial differential equation (PDE) filtering theory, we present an anisotropic PDE noise- reduction model based on fringe structure information for interferometric fringe patterns. This model is based on coherence diffusion and Perona-Malik (P-M) diffusion. The former can protect the structure information of fringe pattern, while the latter can effectively filter off the noise inside the fringes. The proposed model generated by the two diffusion methods helps to obtain good effects of denoising and fidelity. ESPI fringes and the phase pattern are tested. Experimental …


Effect Of Particle Properties On The Discrete Element Simulation Of Wall Friction, Andrew Grima, Peter Wypych Jan 2013

Effect Of Particle Properties On The Discrete Element Simulation Of Wall Friction, Andrew Grima, Peter Wypych

Faculty of Engineering and Information Sciences - Papers: Part A

Modelling the interaction between particles and boundaries is of great interest and importance in many Discrete Element Method (DEM) applications where boundary failure conditions dictate the flow behaviour and velocity gradients of a bulk material. Bulk wall friction angles in DEM models are dependent on the mechanical properties of the particles and boundary material as well as the constraints of the contact models used, especially the tangential and rolling torque components. This paper examines the parameters determined from the calibration inclination test by conducting direct wall shear tests to validate the accuracy of the calibration parameters and the sensitivity of …


Estimation Of The Compression Behaviour Of Reconstituted Clays, Martin D. Liu, Ziling Zhuang, Suksun Horpibulsuk Jan 2013

Estimation Of The Compression Behaviour Of Reconstituted Clays, Martin D. Liu, Ziling Zhuang, Suksun Horpibulsuk

Faculty of Engineering and Information Sciences - Papers: Part A

The void index is a relative quantity measuring the position of the current void ratio of a clay against the void ratios of the clay at two specific vertical effective stresses (i.e., σ v ′ = 100 kPa and σ v ′ =1000 kPa). Based on this concept, a simple systematic tool is proposed for estimating the compression behaviour of reconstituted clays over a wide range of stresses and water contents. Following the practice of geotechnical engineering computation, the compression behaviour of clays is idealised as linear segments in the Iv ~ lnp′ (or the void index and the mean …


Modelling Bovine Serum Albumin Inside Carbon Nanotubes, Ngamta Thamwattana, Duangkamon Baowan, Barry J. Cox Jan 2013

Modelling Bovine Serum Albumin Inside Carbon Nanotubes, Ngamta Thamwattana, Duangkamon Baowan, Barry J. Cox

Faculty of Engineering and Information Sciences - Papers: Part A

Bovine serum albumin is commonly used in many biochemical applications due to its stability, lack of interference within biochemical reactions and low production cost. Here, we model the interaction of bovine serum albumin inside a carbon nanotube. The carbon nanotube is chosen as an example to demonstrate its potential use in targeted drug and protein delivery and as an enzyme immobilizing material. We consider three possible structures as models for bovine serum albumin which are cylinder, prolate ellipsoid and three-connected spheres. Using the Lennard-Jones potential together with a continuum approach we obtain explicitly analytical expressions for the interaction energies of …


Blast Furnace Hearth Refractory And Coke Ash Mineral Interactions, P B. Drain, M W. Chapman, R J. Nightingale, B J. Monaghan Jan 2013

Blast Furnace Hearth Refractory And Coke Ash Mineral Interactions, P B. Drain, M W. Chapman, R J. Nightingale, B J. Monaghan

Faculty of Engineering and Information Sciences - Papers: Part A

In the blast furnace hearth the calcium aluminate by-products of coke dissolution can react with the hearth refractories. Reactions between these coke ash minerals and the aluminosilicate and alumina-carbon hearth refractories may result in increased refractory wear reducing the blast furnace campaign life. Hence improved understanding of these interactions may have implications for the campaign life of the blast furnace hearth refractory materials. The interactions between the coke ash minerals and aluminosilicate hearth refractory have been assessed by heating samples of calcium aluminates (CA, CA2 & CA6) coupled with aluminosilicate refractory to temperatures representative of the blast furnace hearth (1450 …


Gmc ['Gimik]: A One-Variable Monte Carlo Dose Algorithm For Proton Therapy, N Depauw, B Clasie, T Madden, Anatoly B. Rosenfeld, H Kooy Jan 2013

Gmc ['Gimik]: A One-Variable Monte Carlo Dose Algorithm For Proton Therapy, N Depauw, B Clasie, T Madden, Anatoly B. Rosenfeld, H Kooy

Faculty of Engineering and Information Sciences - Papers: Part A

Presentation made at the International Conference on the Use of Computers in Radiation Therapy, 6-9 May 2013, Melbourne Convention and Exhibition Centre, Australia


Advances In Whole Abdominal Irradiation: What Protons, Vmat, And Imrt Using Multicriteria Optimization Can Offer, N Rochet, E Batin, N Depauw, K Jee, H M. Kooy, F H. Khan, P J. Paetzold, A H. Russell, T R. Bortfeld, D L. Craft Jan 2013

Advances In Whole Abdominal Irradiation: What Protons, Vmat, And Imrt Using Multicriteria Optimization Can Offer, N Rochet, E Batin, N Depauw, K Jee, H M. Kooy, F H. Khan, P J. Paetzold, A H. Russell, T R. Bortfeld, D L. Craft

Faculty of Engineering and Information Sciences - Papers: Part A

Abtract of paper presented 55th Annual Meeting of the American Society for Radiation Oncology 2013.


A Critical Survey Of Some Competing Accounts Of Concrete Digital Computation, Nir Fresco Jan 2013

A Critical Survey Of Some Competing Accounts Of Concrete Digital Computation, Nir Fresco

Faculty of Engineering and Information Sciences - Papers: Part A

This paper deals with the question: what are the key requirements for a physical system to perform digital computation? Oftentimes, cognitive scientists are quick to employ the notion of computation simpliciter when asserting basically that cognitive activities are computational. They employ this notion as if there is a consensus on just what it takes for a physical system to compute. Some cognitive scientists in referring to digital computation simply adhere to Turing computability. But if cognition is indeed computational, then it is concrete computation that is required for explaining cognition as an embodied phenomenon. Three accounts of computation are examined …


A Nonconjugated Bridge In Dimer-Sensitized Solar Cells Retards Charge Recombination Without Decreasing Charge Injection Efficiency, Kenji Sunahara, Matthew J. Griffith, Takayuki Uchiyama, Pawel Wagner, David L. Officer, Gordon G. Wallace, Attila J. Mozer, Shogo Mori Jan 2013

A Nonconjugated Bridge In Dimer-Sensitized Solar Cells Retards Charge Recombination Without Decreasing Charge Injection Efficiency, Kenji Sunahara, Matthew J. Griffith, Takayuki Uchiyama, Pawel Wagner, David L. Officer, Gordon G. Wallace, Attila J. Mozer, Shogo Mori

Faculty of Engineering and Information Sciences - Papers: Part A

Dye sensitized solar cells (DSSCs) employing a dimer porphyrin, which was synthesised with two porphyrin units connected without conjugation, have shown that both porphyrin components can contribute to photocurrent generation, that is, more than 50 % internal quantum efficiency. In addition, the open-circuit voltage (Voc) of the DSSCs was higher than that of DSSCs using monomer porphyrins. In this paper, we first optimized cell structure and fabrication conditions. We obtained more than 80% incident photon to current conversion efficiency from the dimer porphyrin sensitized DSSCs and higher Voc and energy conversion efficiency than monomer porphyrin sensitized solar cells. To examine …


Generating A Synthetic Population In Support Of Agent-Based Modeling Of Transportation In Sydney, N Huynh, Mohammad-Reza Namazi-Rad, P Perez, M J. Berryman, Q Chen, J Barthelemy Jan 2013

Generating A Synthetic Population In Support Of Agent-Based Modeling Of Transportation In Sydney, N Huynh, Mohammad-Reza Namazi-Rad, P Perez, M J. Berryman, Q Chen, J Barthelemy

Faculty of Engineering and Information Sciences - Papers: Part A

The complexity of large cities such as Sydney makes planning challenging. There is a growing need for new and evolving tools to assist research and decision-making. Increasingly, planners require sophisticated insights on social behaviour and the interdependencies characterising urban systems. Agent-based modelling as a large and wide-spread scientific modelling technique (that focuses on computer modelling of individuals and their interactions) has recently emerged as a promising tool in this regard with applications to real-world problems in infrastructure, particularly transport planning, of urban areas. An essential element of such an agent based model is a realistic synthetic population that matches the …


Spherical, Cylindrical And Tetrahedral Symmetries; Hydrogenic States At High Magnetic Field In Si:P, R A. Lewis, A Bruno-Alfonso, G V B De Souza, R E M Vickers, J A Colla, E Constable Jan 2013

Spherical, Cylindrical And Tetrahedral Symmetries; Hydrogenic States At High Magnetic Field In Si:P, R A. Lewis, A Bruno-Alfonso, G V B De Souza, R E M Vickers, J A Colla, E Constable

Faculty of Engineering and Information Sciences - Papers: Part A

Phosphorous donors in silicon have an electronic structure that mimics the hydrogen atom, albeit on a larger length, smaller energy and smaller magnetic field scale. While the hydrogen atom is spherically symmetric, an applied magnetic field imposes cylindrical symmetry, and the solid-state analogue involves, in addition, the symmetry of the Si crystal. For one magnetic field direction, all six conduction-band valleys of Si:P become equivalent. New experimental data to high laboratory fields (30 T), supported by new calculations, demonstrate that this high symmetry field orientation allows the most direct comparison with free hydrogen.


Energy Loss Rate Of A Charged Particle In Hgte/(Hgte, Cdte) Quantum Wells, Qinjun Chen, Yee Sin Ang, Xiaolin Wang, R A. Lewis, Chao Zhang Jan 2013

Energy Loss Rate Of A Charged Particle In Hgte/(Hgte, Cdte) Quantum Wells, Qinjun Chen, Yee Sin Ang, Xiaolin Wang, R A. Lewis, Chao Zhang

Faculty of Engineering and Information Sciences - Papers: Part A

The energy loss rate (ELR) of a charged particle in a HgTe/(HgTe, CdTe) quantum well is investigated. We consider scattering of a charged particle by the bulk insulating states in this type of topological insulator. It is found that the ELR characteristics due to the intraband excitation have a linear energy dependence while those due to interband excitation depend on the energy exponentially. An interesting quantitative result is that for a large range of the incident energy, the mean inelastic scattering rate is around a few terahertz.


Online In Vivo Dosimetry In High Dose Rate Prostate Brchytherapy With Moskin Detectors: In Phantom Feasibility Study, G Gambarini, M Carrara, C Tenconi, N Mantaut, M Borroni, D Cutajar, M Petasecca, I Fuduli, M Lerch, E Pignoli, Anatoly B. Rosenfeld Jan 2013

Online In Vivo Dosimetry In High Dose Rate Prostate Brchytherapy With Moskin Detectors: In Phantom Feasibility Study, G Gambarini, M Carrara, C Tenconi, N Mantaut, M Borroni, D Cutajar, M Petasecca, I Fuduli, M Lerch, E Pignoli, Anatoly B. Rosenfeld

Faculty of Engineering and Information Sciences - Papers: Part A

MOSkin detectors were studied to perform real-time in vivo dose measurements in high dose rate prostate brachytherapy. Measurements were performed inside an urethral catheter in a gel phantom simulating a real prostate implant. Measured and expected doses were compared and the discrepancy was found to be within 8.9% and 3.8% for single MOSkin and dual-MOSkin configurations, respectively. Results show that dual-MOSkin detectors can be profitably adopted in prostate brachytherapy treatments to perform real-time in vivo dosimetry inside the urethra.


Graphene-Polymer Multilayer Heterostructure For Terahertz Metamaterials, Zaiquan Xu, Caiyun Chen, Steve Qing Yang Wu, Bing Wang, Jinghua Teng, Chao Zhang, Qiaoliang Bao Jan 2013

Graphene-Polymer Multilayer Heterostructure For Terahertz Metamaterials, Zaiquan Xu, Caiyun Chen, Steve Qing Yang Wu, Bing Wang, Jinghua Teng, Chao Zhang, Qiaoliang Bao

Faculty of Engineering and Information Sciences - Papers: Part A

The optical response and plasmon coupling between graphene sheets for graphene/polymer multilayer heterostructures with controlled separation were systematically investigated. Anomalous transmission of light was experimentally observed in mid-infrared range. The position of the broad passband in the transmission spectra was observed to red-shift with the increase of the number of layers.


Formulation Of Cross-Anisotropic Failure Criterion For Soils, Yi-Fei Sun, Han-Long Liu, Gui Yang, Yang Xiao Jan 2013

Formulation Of Cross-Anisotropic Failure Criterion For Soils, Yi-Fei Sun, Han-Long Liu, Gui Yang, Yang Xiao

Faculty of Engineering and Information Sciences - Papers: Part A

Inherently anisotropic soil fabric has a considerable influence on soil strength. To model this kind of inherent anisotropy, a three-dimensional anisotropic failure criterion was proposed, employing a scalar-valued anisotropic variable and a modified general threedimensional isotropic failure criterion. The scalar-valued anisotropic variable in all sectors of the deviatoric plane was defined by correlating a normalized stress tensor with a normalized fabric tensor. Detailed comparison between the available experimental data and the corresponding model predictions in the deviatoric plane was conducted. The proposed failure criterion was shown to well predict the failure behavior in all sectors, especially in sector II with …


A Simple Model To Extend 1-D Hydraulics To 3-D Hydraulics, Shu-Qing Yang Jan 2013

A Simple Model To Extend 1-D Hydraulics To 3-D Hydraulics, Shu-Qing Yang

Faculty of Engineering and Information Sciences - Papers: Part A

the core of fluid mechanics is the study of friction on a solid/liquid interface, the friction force can be divided into skin friction and form drag. Nikuradse's experiments reveal that the friction factor depends on the Reynolds number (Re) and relative roughness (r), this observation implies the co-existence of skin friction and form drag, but the definitions of Re and r given by Nikuradse cannot be linked with the skin friction and form drag, this leads to the invalidity of existing theory to predict the friction factor in a complex flow, like a channel flow with vegetation. To establish a …


Faster Out Of The Station: Asia Surges Ahead On Rail, Philip G. Laird Jan 2013

Faster Out Of The Station: Asia Surges Ahead On Rail, Philip G. Laird

Faculty of Engineering and Information Sciences - Papers: Part A

It is interesting to see the progressmade by Asian countries since 2001 in developing high-speed rail (HSR),while Australia is missing out.


The Asian Evolution Of High Speed Rail, Philip G. Laird Jan 2013

The Asian Evolution Of High Speed Rail, Philip G. Laird

Faculty of Engineering and Information Sciences - Papers: Part A

In Australia, in 2001, the Howard government released an East Coast HSR Scoping Study. This followed two major investigations by the private sector into HSR options for Australia; the first being a Sydney Canberra Melbourne Very Fast Train as proposed in 1984 by CSIRO, and the second being the Sydney Canberra Speed HSR proposal.


Curvature Flows And Barriers In Fire Front Modelling, Valentina-Mira Wheeler, James A. Mccoy, Glen Wheeler, J J. Sharples Jan 2013

Curvature Flows And Barriers In Fire Front Modelling, Valentina-Mira Wheeler, James A. Mccoy, Glen Wheeler, J J. Sharples

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper we propose a novel mathematical model for describing the evolution of a fire front. Specifically, for a homogeneous fuel bed of varying height with constant ignition temperature Tig we model the isosurface corresponding to Tig . The intersection of this isosurface with the fuel bed defines the evolving front. There are three natural processes driving the evolution of the evolving front: radiative heat transfer, convective heat transfer, and heat/mass transfer. These processes clearly depend on the shape of the isosurface in space, and this nonlinear feedback can be understood through the curvature of the isosurface. The model …


Video Resources For Supporting Learning In Mathematics Rich Disciplines: A Teaching Perspective, Bothaina Bukhatwa, Anne L. Porter, Mark I. Nelson Jan 2013

Video Resources For Supporting Learning In Mathematics Rich Disciplines: A Teaching Perspective, Bothaina Bukhatwa, Anne L. Porter, Mark I. Nelson

Faculty of Engineering and Information Sciences - Papers: Part A

Video capture technology allows video to be readily recorded and edited. The distribution of videos through e-learning systems provides learning support to students. This article discusses our experiences in developing video genre resources. The "overview" video resource is found to be a useful technique for conveying the structure of a topic. Video resources can be combined in a variety of ways using concept maps, learning design maps and/or folder based approaches. We provide our perspective regarding the productio nof video resources using tablet technology tools. The relative ease and flexibility of the technology is discussed. The aim of this article …


Modelling Fire Line Merging Using Plane Curature Flow, J J. Sharples, I N. Towers, G Wheeler, Valentina-Mira Wheeler, J A. Mccoy Jan 2013

Modelling Fire Line Merging Using Plane Curature Flow, J J. Sharples, I N. Towers, G Wheeler, Valentina-Mira Wheeler, J A. Mccoy

Faculty of Engineering and Information Sciences - Papers: Part A

The merging of two lines of fire is a relatively common occurrence in landscape fire events. For example, it can arise through the coalescence of two wildfires or when a prescribed fire meets a wildfire as part of suppression efforts. When two fires approach one another, the effects of convective and radiative heat transfer are compounded and high rates of spread can arise as a result. This is particularly the case when two oblique lines of fire meet at some acute angle - the point of intersection on the newly merged fire can advance rapidly. This case was investigated recently …


A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fentong Wen, Willy Susilo, Guomin Yang Jan 2013

A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fentong Wen, Willy Susilo, Guomin Yang

Faculty of Engineering and Information Sciences - Papers: Part A

In global mobility networks, anonymous user authentication is an essential task for enabling roaming service. In a recent paper, Jiang et al. proposed a smart card based anonymous user authentication scheme for roaming service in global mobility networks. This scheme can protect user privacy and is believed to have many abilities to resist a range of network attacks, even if the secret information stored in the smart card is compromised. In this paper, we analyze the security of Jiang et al.'s scheme, and show that the scheme is in fact insecure against the stolen-verifier attack and replay attack. Then, we …


Microstructural Characterization Of P91 Steel In The Virgin, Service Exposed And Post-Service Re-Normalized Conditions, Huijun Li, David Mitchell Jan 2013

Microstructural Characterization Of P91 Steel In The Virgin, Service Exposed And Post-Service Re-Normalized Conditions, Huijun Li, David Mitchell

Faculty of Engineering and Information Sciences - Papers: Part A

P91 steel has been widely used in power generation industry. Generally, P91 creep resisting steel is produced by normalizing and tempering. The normalizing temperature is in the range of 1040–10808C and tempering temperature is in the range of 750–7808C. The microstructure after tempering is tempered martensite with precipitates of carbides, M23C6, and vanadium/niobium rich carbo‐nitride of the type MX (M ¼ V or Nb and X ¼ C or N). The presence of carbide precipitates improves creep rupture strength due to precipitation hardening. The carbide coarsening and microstructure degradation during service will result in deterioration in creep strength. It is …


Anonymous Signcryption Against Linear Related-Key Attacks, Hui Cui, Yi Mu, Man Ho Au Jan 2013

Anonymous Signcryption Against Linear Related-Key Attacks, Hui Cui, Yi Mu, Man Ho Au

Faculty of Engineering and Information Sciences - Papers: Part A

A related-key attack (RKA) occurs when an adversary tampers the private key stored in a cryptographic hardware device and observes the result of the cryptographic primitive under this modified private key. In this paper, we concentrate on the security of anonymous signcryption schemes under related-key attacks, in the sense that a signcryption system should contain no information that identifies the sender of the signcryption and the receiver of the message, and yet be decipherable by the targeted receiver. To achieve this, we consider our anonymous signcryption scheme being semantically secure against chosen ciphertext and related-key attacks (CC-RKA), existentially unforgeable against …


Direct Approach For Solving Nonlinear Evolution And Two-Point Boundary Value Problems, Jonu Lee, Rathinasamy Sakthivel Jan 2013

Direct Approach For Solving Nonlinear Evolution And Two-Point Boundary Value Problems, Jonu Lee, Rathinasamy Sakthivel

Faculty of Engineering and Information Sciences - Papers: Part A

Time-delayed nonlinear evolution equations and boundary value problems have a wide range of applications in science and engineering. In this paper, we implement the differential transform method to solve the nonlinear delay differential equation and boundary value problems. Also, we present some numerical examples including time-delayed nonlinear Burgers equation to illustrate the validity and the great potential of the differential transform method. Numerical experiments demonstrate the use and computational efficiency of the method. This method can easily be applied to many nonlinear problems and is capable of reducing the size of computational work.