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2010 International Conference on Communications and Mobile computing, CMC 2010

作者： Sahandi, Reza Liu, Yuanlong School of Design Engineering and Computing Bournemouth University Bournemouth United Kingdom

ISBN: (纸本)9780769539898

Remote patient monitoring (RPM) provides an efficient method to improve patient care in hospitals. Zigbee network technology with low-power consuming sensors has the capability to provide enhanced mobility and comfort to patients. A single Zigbee based sensor network is unable supporting all the patients on a general ward. The allocation of a ZigBee sensor network to each patient can address this limitation. However a large number of ZigBee networks can generate channel overlap problems due to the limited number of channels used by ZigBee. In the presence of channel overlap, multiple Zigbee networks may experience problems when handling continuous transmission of vital signs in RPM. However the adoption of appropriate time intervals for transmission of vital signs from sensors can rectify this problem thereby providing reliable transmission of vital signs. © 2010 IEEE.

关键词： Zigbee

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Optimum design of fibre orientation angles in composite laminate plates for minimum thickness

Optimum design of fibre orientation angles in composite lami...

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ASME 2010 International Mechanical engineering Congress and Exposition, IMECE 2010

作者： Khandan, Rasoul Noroozi, Siamak Vinney, John Sewell, Philip Reza Ramazani, Mohammad School of Design Engineering and Computing Bournemouth University Bournemouth Dorset United Kingdom

ISBN: (纸本)9780791844496

Previous studies have shown that composite fibre orientation angles can be optimised for specific load cases such as longitudinal or in-plane loading. However, the methodologies utilised in these studies cannot be used for general analysis of such problems. This research presents a methodology whereby the thickness of laminated composite plates is minimised by optimising the fibre orientation angles for different load cases. Therefore, the effect of transverse shear forces is considered in this study. Simulated annealing (SA), which is a type of stochastic optimisation method, is used to search for the optimal design. This optimisation algorithm has been shown to be reliable as it is not based on the starting point and it can escape from the local optimum points. In accordance with the annealing process where temperature decreases gradually, this algorithm converges to the global minimum. In this research, the Tsai-Wu failure and maximum stress criteria for composite laminate are chosen. Tsai-Wu failure is operationally simple and readily amenable to computational procedures. In addition, this criterion shows the difference between tensile and compressive strengths clearly, through its linear terms. By applying two failure criteria at the same time the results are more reliable. Finally, the numerical results are obtained and compared to the results of previous research with specific loadings to validate the methodology. Additionally the ply angles of composite plate are optimised by considering the effect of transverse shear force and induced twist angles. Copyright © 2010 by ASME.

关键词： Compressive strength

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A fastest multi-hop routing scheme for information dissemination in vehicular communication systems

A fastest multi-hop routing scheme for information dissemina...

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18th International Conference on Software, Telecommunications and Computer Networks, SoftCOM 2010

作者： Bilal, M. Chan, P.M.L. Pillai, P. School of Computing Informatics and Media School of Engineering Design and Technology University of Bradford United Kingdom

ISBN: (纸本)9789532900217

The ability to realize an Intelligent Transportation System (ITS) to improve driver safety has attracted huge interests from researchers this decade. Vehicular Communication covering vehicle-to-vehicle (V2V), vehicle-to- infrastructure (V2I) communication supported by ITS provide ubiquitous internet connectivity among the vehicles to improve safety for drivers. In addition to carrying driver safety messages, such as emergency warning messages, accident alerts and road work messages, multi-hop routing carrying the information for driver's comfort such as long route traffic information, on road advertisements and parking assistance are also an important and challenging task in vehicular ad hoc networks (VANET). This paper presents a multi-hop long range transmission of packets among the vehicles on the basis of reduced transmission hops by choosing the most suitable vehicle within the transmission range for packet transmission. The algorithm proposed in this paper, Fastest Multi-Hop Routing Scheme (FMHR) is evaluated based on incoming and outgoing throughput and compared with another multi-hop transmission algorithm [6] using different radio access technology. The simulation environment used for the evaluation of proposed algorithm is NCTUns-6.0.

关键词： Vehicular ad hoc networks

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Determining Event Ordering in Mobile Ad Hoc Networks

Determining Event Ordering in Mobile Ad Hoc Networks

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2011 International Conference on Computer Science and Network Technology(2011计算机科学与网络技术国际会议 ICCSNT 2011)

作者： Dan Wu Dawei Liu Yue Wang Weixiong Rao Bin Sheng Network & Telecommunication Division Guangdong Electric Power Design Institute China Joint Research Center in Ubiquitous Computing Macao Polytechnic Institute Macau School of Information Central University of Finance and Economics China Department of Computer Science University of Helsinki Finland Department of Computer Science and Engineering Shanghai Jiao Tong University China

Determining event ordering has always been a crucial issue in distributed computing. A well known model for describing event ordering is the happened-before relation. However, the traditional happened-before relation model is i-nadequate to faithfully characterize event ordering in recent emerging mobile ad hoc networks (MANETs), which usually have no fixed supporting infrastructure and may experience dynamic network topology changes. In this paper, we first propose a new relation, called the extended-happenedbefore relation, to model the ordering of events for a MANET. Then we present an algorithm to assign logical time to events such that the extendedhappened-before relation between events can be decided by comparing their tunestamps. We finally show how to construct consistent global snapshots in a MANET when the ordering of events can be determined.

关键词： Distributed computing Event ordering Logical tune Mobile ad hoc networks

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Implementation of virtual control strategies for natural rehabilitation of arm with visual and force feedback

Implementation of virtual control strategies for natural reh...

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IEEE International Conference on Robotics and Biomimetics

作者： Dubey, Venketesh N. Klopot, Witold Skupin, Piotr School of Design Engineering and Computing Bournemouth University United Kingdom Silesian University of Technology Poland

ISBN: (纸本)9781424493173

Robotic training following stroke is an emerging rehabilitation technique to facilitate neuromuscular plasticity for regaining functional movements. Most existing training robots follow a defined task-based trajectory in assistive or resistive mode. Whilst this approach may be effective in certain cases it does not allow training of arm or leg in a natural way as the motion is precisely guided by the robot or exoskeleton. The ideal training would be to allow arm/leg follow a trajectory naturally without any augmented support and bring it back when the limb is diverted significantly from the goal. This paper presents implementation of this approach in a virtual environment using a simple force feedback joystick. This will guide the arm within a tunnel of trajectory by providing assistance or resistance depending on location of the arm. The technique can be extended for 3-dimensoional arm movement which can help learn neural plasticity naturally. © 2010 IEEE.

关键词： Trajectories

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Extracting informative genes from unprocessed microarray data

Extracting informative genes from unprocessed microarray dat...

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International Conference on Machine Learning and Cybernetics

作者： Tong, Dong-Ling Software Systems Research Centre School of Design Engineering and Computing Bournemouth University Poole Dorset United Kingdom

ISBN: (纸本)9781424465262

Numerous feature selection methods have been developed to identify informative genes from a large pool of genes that are not involved in the array experiments. However, the integrity of the reported genes is still uncertain due to the applications of various pre-processing techniques to the microarray data by these methods and a lack of standard validation procedures to validate the significance of the genes. In this paper, we developed a feature extraction framework based on the hybrid genetic algorithm (GA) and neural network (ANN) to extract informative genes from the raw (unprocessed) microarray data. This approach has showed its efficacy in extracting informative genes for microarray data. © 2010 IEEE.

关键词： Genes

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An educational and commercial product design symbiosis: A case study

An educational and commercial product design symbiosis: A ca...

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12th International Conference on engineering and Product design Education: When design Education and design Research Meet ., E and PDE 2010

作者： Dyer, Bryce Glasspool, Chris Terry, Simon School of Design Engineering and Computing Bournemouth University United Kingdom Anglepoise Ltd. Farlington United Kingdom

ISBN: (纸本)9781904670193

Product design education has been one of the most exciting and vibrant study paths in the last two decades. It presents students the opportunity to develop their skills and talents to create innovative and effective product solutions. However, should a design student wish to obtain greater experience within the university curricula, their experience could be improved by an engagement with industry during their studies. This in turn enhances portfolio diversity and employment prospects. Discussed in this paper is a case study whereby a large scale commercial input to undergraduate students over a two year period allowed them to create products which were innovative yet highly sensitive to the needs of industry. The projects also saw students from two different years of academic study engage with each other in a team working format to enhance the learning experience. By engaging student cohorts from different levels of study, this created peer assisted learning opportunities. Any company which chooses to undertake an engagement with a body of design students not only gains creative input to their organisation but also the ability to help influence and inspire product design students of the future. This paper demonstrates through discussion of a case study conducted from 2008 & 2009 how an ongoing industrial engagement not only provided the means for a large scale creative input but also provided a massive peer assisted learning exercise between multiple year design students. Ultimately, the engaged company, the academic institution and most importantly the students all gain from this symbiosis.

关键词： Students

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Advanced modelling of complex processes by fuzzy networks

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WSEAS Transactions on Circuits and Systems 2011年第10期10卷 319-330页

作者： Gegov, Alexander Petrov, Nedyalko Vatchova, Boriana Sanders, David School of Computing University of Portsmouth Buckingham Building Anglesea Road Portsmouth Hants PO1 3DJ United Kingdom Institute of Information and Communication Technologies Bulgarian Academy of Sciences Academic Georgi Bontchev Street Block 2 1113 Sofia Bulgaria Mechanical and Design Engineering University of Portsmouth Anglesea Building Anglesea Road Portsmouth Hants PO1 3DJ United Kingdom

This work presents an application of the novel theory of rule based networks for building models of processes characterised by uncertainty, non-linearity, modular structure and internal interactions. The application of the theory is demonstrated for a flotation process in the context of converting a multiple rule based system into an equivalent single rule based system by linguistic composition of the individual rule bases. During the conversion process, the transparency of the multiple rule based system is fully preserved while its accuracy is improved to a level comparable with the accuracy of the single rule based system.

关键词： Knowledge based systems

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Image encryption algorithm based on DNA sequences for the big image

Image encryption algorithm based on DNA sequences for the bi...

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International Conference on Multimedia Information Networking and Security

作者： Zhou, Shihua Zhang, Qiang Wei, Xiaopeng School of Mechanical Engineering Dalian University of Technology Dalian China Key Laboratory of Advanced Design and Intelligent Computing Dalian University Ministry of Education Dalian China

ISBN: (纸本)9780769542584

With the fast development of Internet technology and information processing technology, the image is commonly transmitted via the Internet. People enjoy the convenience and shortcut, but people have to face to the obsession that the important image information in transmission is easily intercepted by unknown persons or hackers. In order to enhance the image information security, image encryption becomes an important research direction. An image encryption algorithm based on DNA sequences for the big image is presented in this paper. The main purpose of this algorithm is to reduce the big image encryption time. This algorithm is implemented by using the natural DNA sequences as main keys. The first part is the process of pixel scrambling. The original image is confused in the light of the scrambling sequence is generated by the DNA sequence. The second part is the process of pixel replacement. The pixel gray values of the new image and the one of the three encryption templates are generated by the other DNA sequence are XORed bit-by-bit in turn. The experimental result demonstrates that the image encryption algorithm is feasible and simple. Through performance analysis, this algorithm is robust against all kinds of attacks and owns higher security. © 2010 IEEE.

关键词： DNA sequences

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An image encryption algorithm based on DNA self-assembly technology

An image encryption algorithm based on DNA self-assembly tec...

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2010 IEEE International Conference on Intelligent computing and Intelligent Systems, ICIS 2010

ISBN: (纸本)9781424465835

DNA self-assembly that is fast developed in the fields of DNA computing and nano technology has become the focus of scientific fields. DNA self-assembly is a method that uses the characteristics of base-pair to form polyhedron or super molecular structure. This is a complex progress from disordered to well-ordered, from simple to complicated. This paper mainly introduces that the DNA self-assembly technology is applied into the image encryption. In this paper, we proposed a complete design scheme of DNA tiles that is suitable for the image encryption. The DNA tiles mainly include five types, namely DNA tiles of the plaintext, DNA tiles of the encryption, DNA tiles of the cipertext, DNA tiles of the key and DNA tiles of the decryption. Through a simulate example, the effect of the image encryption algorithm is shown. ©2010 IEEE.

关键词： Cryptography

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