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A Bandwidth Smoothing Algorithm Applied in Streaming Media system upon Home Network

A Bandwidth Smoothing Algorithm Applied in Streaming Media S...

2010 2nd International Conference on Education Technology and Computer(第二届IEEE教育技术与计算机国际会议 ICETC 2010)

作者： Haiwei Wang Peng Sun Xiaoyong Zhu Hong Ni Key Lab of Network Communication System and Control Chinese Academy of Sciences Key Lab of Anhui N National Network New Media Engineering Research Center Institute of AcousticsChinese Academy of Sci

ISBN: (纸本)9781424463671;9781424463688;9781424463701

Bandwidth smoothing can increase the utility of network bandwidth by reducing the burstiness of a VBR (variable bit rate) video stream. To guarantee the quality of service of video-on-command service in home network, data transmission rate should not exceed the maximum data handling capacity of embedded terminals. This paper designs a streaming media system in home network, and puts forward a smoothing algorithm based on greedy algorithm for transmitting VBR video streams subjected to maximum data transmitting rate. The presented algorithm can decrease startup delay of streaming and meet the demand of client buffering requirement under the constraint of maximum transmission rate. Experiment results demonstrate the effectiveness of the presented algorithm.

关键词： home network streaming media system variable bit rate bandwidth smoothing

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Epidemic spreading with variant infection rates on scale-free network

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6th International Symposium on Neural Networks, ISNN 2009

作者： Hong, Liu Ouyang, Min Mao, Zijun Chen, Xueguang Institute of System Engineering Huazhong University of Science and Technology Wuhan 430074 China Key Lab. for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)3642015123

In this paper, we proposed a susceptible-infected model with variant infection rates because different individuals have different resistance to diseases in different periods of real epidemic events. We consider two cases: Case 1, we know every individual's infection rate to a kind of epidemic, satisfy a type of distribution. Case 2, assume all individuals have same initial infection rates, a susceptible individual's infection rate will be less than the initial rate if he is not infected after limited number of contacts with infected ones. For both two cases, at the time tD, preventive and control measures bring into effects, every individual's infection rate would decrease. We implemented this models on scale-free networks, and found that the epidemic process before the time tD in Case 1 is almost the same as that in Standard SI model if the infection rate in Standard SI model equals the mean infection rate in Case 1. Furthermore, using numerical simulation, we analysis the effects of the parameter tD, and find the bimodal distribution of final infection rates. Finally, we conclude what we get in this paper and give our future direction. © 2009 Springer Berlin Heidelberg.

关键词： Complex networks

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Interdependency analysis of infrastructures

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6th International Symposium on Neural Networks, ISNN 2009

作者： Mao, Zijun Hong, Liu Fei, Qi Ouyang, Ming Institute of System Engineering Huazhong University of Science and Technology Wuhan 430074 China Key Lab. for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)3642015123

Electric power, potable water, telecommunications, natural gas, and transportation are examples of critical infrastructures, the intrinsic feature of which are suitable for network analysis. This paper proposes a method framework based on the complex network to explore the interdependency of these infrastructures. We describe the topological characterization of two interdependent small-sized real networks, based on which the interdependent model is devised. We define the interdependent factor to characterize the direct interdependency of two infrastructures, and also its fluctuation in the situations of random removal and targeted removal on the electric and water infrastructures is studied. Furthermore we propose a matrix M to reflect all direct and indirect interactions among infrastructures, which also makes contributions to the understanding of infrastructures catastrophes. © 2009 Springer Berlin Heidelberg.

关键词： Complex networks

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pService: Towards similarity search on peer-to-peer web services discovery

pService: Towards similarity search on peer-to-peer web serv...

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1st International Conference on Advances in P2P systems, AP2PS 2009

作者： Zhou, Gang Yu, Jianjun National Digital Switching System Engineering and Technological Research Center 450002 France State Key Lab. of Software Development Environment Beihang University 100191 China Computer Network Information Center Chinese Academy of Sciences 100190 China

ISBN: (纸本)9780769538310

We present the design of pService system for P2P Web services discovery supporting similarity earch with its locality-preserving feature based on modified Skip Graph. In pService, the most important property (e.g. service name) of a service is viewed as the indexing key of a peer node. The other properties are extracted as multiattributes which would be mapped into one-dimensional indices using HSFC (Hilbert Space Filling Curve), and assigned to membership vector of the peer node. These two features help to support similarity search in two aspects: peer nodes with similar indexing keys would be distributed neighborly, peer nodes with similar indices will connect to each other through routing table. Our evaluation showed that the pService performs considerable Web services discovery efficiency. © 2009 IEEE.

关键词： Web services

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Novel connection scheme of backup power supply adaptive to Distribution Line Non-Communication Protection and new criterion for high voltage and large capacity induction motor

Novel connection scheme of backup power supply adaptive to D...

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2009 Asia-Pacific Power and Energy engineering Conference, APPEEC 2009

作者： Liu, Kun Dong, Xinzhou Bo, Zhiqian State Key Lab of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 100084 China AREVA T and D Automation Stafford ST17 4LX United Kingdom

ISBN: (纸本)9781424424870

This paper presents a new practical backup power supply connection scheme for Distribution Line Non-Communication Protection (DNCP). Simulation tests have been conducted using the Alternate Transient Program (ATP) with respect to a typical single circuit breaker multi-section system. The results prove that the new scheme is able to not only recover the power supply of loads on healthy lines automatically, but also create disturbances in favor of Accelerated Over Current (AOC) criterion. Aiming at the failure of Directional Under Voltage (DUV) criterion derived from high voltage and large capacity induction motor load, a novel criterion using the increment of reactive power is proposed. © 2009 IEEE.

关键词： Induction motors

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A fast algorithm of the optimal smoothing scheme for transmitting stored video

A fast algorithm of the optimal smoothing scheme for transmi...

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IITA International Conference on control, Automation and systems engineering

作者： Zilei Wang Hongsheng Xi Guo Wei Key Lab of network communication system and control Chinese Academy of Sciences University of science and technology of China (USTC) Dept. of electronic engineering and information science USTC

ISBN: (纸本)9781424445530

Minimum changes bandwidth allocation (MCBA) is an optimal video transmission scheme resulting in the minimum number of rate changes with the minimum peak rate, which can reduce renegotiation frequency in statistical multiplexing service. The existing MCBA algorithm with searching frontiers, however, has a high computational complexity, which depressed the applicability of MCBA. In this paper, we design a fast algorithm of MCBA that examines for the bounded point based on the convex envelopes of the overflow and underflow curve. As a result, our algorithm can work out an MCBA scheme in a shorter time because we can find the bounded point with a linear complexity, and calculate each transmission rate within several iterations. The simulation using real video traces confirmed the philosophy and efficiency of our algorithm.

关键词： Smoothing methods Bandwidth Streaming media Optimal control Communication system control control systems Channel allocation Computational complexity Storage automation systems engineering and theory

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Novel Connection Scheme of Backup Power Supply Adaptive to Distribution Line Non-Communication Protection and New Criterion for High Voltage and Large Capacity Induction Motor

Novel Connection Scheme of Backup Power Supply Adaptive to D...

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IEEE PES Asia-Pacific Power and Energy engineering Conference (APPEEC)

作者： Kun Liu Xinzhou Dong Zhiqian Bo State Key Lab of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing China AREVA T&D Automation슠and Information Systems Stafford UK

This paper presents a new practical backup power supply connection scheme for distribution line non-communication protection (DNCP). Simulation tests have been conducted using the alternate transient program (ATP) with respect to a typical single circuit breaker multi-section system. The results prove that the new scheme is able to not only recover the power supply of loads on healthy lines automatically, but also create disturbances in favor of accelerated over current (AOC) criterion. Aiming at the failure of directional under voltage (DUV) criterion derived from high voltage and large capacity induction motor load, a novel criterion using the increment of reactive power is proposed.

关键词： Emergency power supplies Voltage Induction motors Power system protection Circuit testing Circuit simulation system testing Power system transients Circuit breakers Power supplies

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Quantized Feedback Stabilization of Hybrid Impulsive control systems

Quantized Feedback Stabilization of Hybrid Impulsive Control...

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Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Zhichun Yang Yiguang Hong Zhong-Ping Jiang Xiaoli Wang Chongqing Key Lab of Operations Research and System Engineering Department of Mathematics and Computer ScienceChongqing Normal University Institute of Systems Science Chinese Academy of Sciences Key Laboratory of Systems and Control Institute of Systems ScienceChinese Academy of Sciences Dept.of Electrical & Computer Engineering Polytechnic Institute of New York University

In this paper,we consider the feedback stabilization problem of impulsive linear control systems with quantized input signals and quantized output *** concepts including quasi-invariant sets and attracting sets for hybrid impulsive quantized systems are *** on these concepts and the analysis of related dynamic properties,we propose hybrid quantized control schemes to stabilize the considered impulsive systems via state and output feedback.

关键词： quantization impulsive systems hybrid control stabilization

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Subtyping of type A influenza by sequencing the variable regions of HA gene specifically amplified with RT-PCR

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Chinese Science Bulletin 2009年第13期54卷 2164-2167页

作者： YAN An DING GuoHui ZHOU ZhenFeng DONG Hui ZHANG YaKun ZHU Lei HE YunGang ZHANG GuoQing LI YiXue SUN Bing HUANG Zhong LAN Ke JIN Li WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang DAI JianXin GUO YaJun WANG Hao CHE XiaoYan WU Fan YUAN ZhenGan ZHANG Xi CAO ZhiWei ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi ZHAO GuoPing JIN WeiRong XIONG Hui Shanghai-MOST Key Laboratory for Disease and Health Genomics Chinese National Human Genome Center at Shanghai Shanghai 201203 China Shanghai Institutes of Biological Sciences Chinese Academy of Sciences (Lab of Computational Genomics CAS-MPG Partner Institute of Computational Biology Center of Bjoinformatics Key Lab of System Biology Lab of Synthetic Biology Institute of Plant Physiology & Ecology Institute Pasteur) Shanghai 200031 China National Engineering Research Center for Biochip Technology Shanghai Biochip Co. Ltd Shanghai 201203 China Shanghai Center for Bioinformation Technology Shanghai 200235 China School of Life Sciences Fudan University Shanghai 200433 China School of Life Sciences and Technology South China University of Technology Guangzhou 510641 China Cancer Institute Second Military Medical University Shanghai 200433 China National Engineering Research Center for Antibody Drugs Shanghai 201203 China Zhujiang Hospical Southern Medical University Guangzhou 510282 China Shanghai Municipal Center for Disease Control & Prevention Shanghai 200336 China School of Life Sciences and Technology Tongji University Shanghai 200092 China National Institute for Parasitic Diseases Chinese Center for Disease Control and Prevention Shanghai 200025 China Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China Shanghai Veterinary Research Institute Chinese Academy of Agricultural Sciences Shanghai 200241 China

The outbreak of a novel influenza A(H1N1) virus across the globe poses a threat to human *** is of paramount importance to develop a rapid,reliable and inexpensive diagnostic *** on the bioinformatic information from public database,primers specific for influenza A virus surface protein haemagglutinin(HA) of several subtypes(including H1,H2,H3,H5,H7 and H9) were ***-specific PCR products were subjected to sequencing for accurately distinguishing H1 and H3 subtypes from *** sequencing-based detection method will not only be applied to rapid detection and simultaneous subtype identification of new influenza A virus H1N1,but also provide the strategies to monitor other new types ofinfluenza virus with explosive potential.

关键词：流感病毒 H9亚型 PCR产物 HA基因测序可变区生物信息学 RT

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Structure modeling and spatial epitope analysis for HA protein of the novel H1N1 influenza virus

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Chinese Science Bulletin 2009年第13期54卷 2171-2173页

作者： WU Di XU TianLei SUN Jing DAI JianXin DING GuoHui HE YunGang ZHOU ZhengFeng XIONG Hui DONG Hui JIN WeiRong BIAN Chao JIN Li WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang WANG Hao CHE XiaoYan HUANG Zhong LAN Ke SUN Bing WU Fan YUAN ZhenAn ZHANG Xi ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi GUO YaJun ZHAO GuoPing LI YiXue CAO ZhiWei School of Life Sciences and Technology Tongji University Shanghai 200092 China Shanghai Center for Bioinformation Technology Shanghai 200235 China School of Life Sciences Fudan University Shanghai 200433 China Cancer Institute of the Second Military Medical University Shanghai 200433 China School of Life Sciences and Technology South China University of Technology Guangzhou 510641 China National Engineering Research Center for Antibody Drugs Shanghai 201203 China Zhujiang Hospital Southern Medical University Guangzhou 510282 China Shanghai Municipal Center for Disease Control & Prevention Shanghai 200336 China Shanghai Institutes of Biological Sciences Chinese Academy of Sciences (Lab of Computational Genomics CAS-MPG Partner Institute of Computational Biology Center of Bioinformatics Key Lab of System Biology Lab of Synthetic Biology Institute of Plant Physiology & Ecology Institute Pasteur) Shanghai 200031 China National Engineering Research Center for Biochip Technology Shanghai Biochip Co. Ltd Shanghai 201203 China National Institute for Parasitic Diseases Chinese Center for Disease Control and Prevention Shanghai 200025 China Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China Shanghai Veterinary Research Institute Chinese Academy of Agricultural Sciences Shanghai 200241 China

In recent months,a novel influenza virus H1N1 broke out around the *** bioinformatics technology,the 3D structure of HA protein was obtained,and the epitope residues were predicted with the method developed in our group for this novel flu virus.58 amino acids were identified as potential epitope residues,the majority of which clustered at the surface of the globular head of HA *** it is located at the similar position,the epitope of HA protein for the novel H1N1 flu virus has obvious differences in the electrostatic potential compared to that of HA proteins from previous flu viruses.

关键词：禽流感病毒抗原表位 A蛋白结构建模和空间生物信息学技术三维结构残留物

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