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The mutation network for the hemagglutinin gene from the novel influenza A (H1N1) virus

Chinese Science Bulletin 2009年第13期54卷 2168-2170页

作者： HE YunGang DING GuoHui BIAN Chao HUANG Zhong LAN Ke SUN Bing WANG XueCai LI YiXue WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang JIN WeiRong XIONG Hui DAI JianXin GUO YaJun WANG Hao CHE XiaoYan WU Fan YUAN ZhenAn ZHANG Xi CAO ZhiWei ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi ZHAO GuoPing JIN Li Shanghai Institutes of Biological Sciences Chinese Academy of Sciences (Key Laboratory of Computational Biology 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 School of Life Sciences Fudan University Shanghai 200433 China Shanghai-MOST Key Laboratory for Disease and Health Genomics Chinese National Human Genome Center at Shanghai Shanghai 201203 China Cancer Institute 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 G uangzhou 510282 China Shanghai Municipal Center for Disease Control & Prevention Shanghai 200336 China Shanghai Center for Bioinformation Technology Shanghai 200235 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 National Engineering Research Center for Biochip Technology Shanghai Biochip Co. Ltd Shanghai 201203 China

A mutation network for the hemagglutinin gene(HA) of the novel type A(H1N1) influenza virus was *** homology analysis indicated that one HA sequence type from the viruses mainly isolated from Mexico was likely the original type in this *** on the 658A and 1408T mutations in HA,the viruses evolving into this epidemic were divided into three categories,the Mexico,the transitional and the New York *** three groups of viruses presented distinctive clustering features in their geographic distributions.

关键词：流感病毒血凝素基因流行性感冒突变网络序列类型同源性分析地理分布

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An Extensive Empirical Study of automated evaluation of multi-document summarization

An Extensive Empirical Study of automated evaluation of mult...

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1st International Conference on Intelligent Networks and Intelligent systems, ICINIS 2008

作者： Wu, Ying-Qiang Gang-Zhou Qiu, Li-Qing State Key Lab. of Software Development Environment Beihang University 100191 National Digital Switching System Engineering and Technological Research Center 450002 China

ISBN: (纸本)9780769533919

This paper discusses an approach to automated evaluation of multi-document summarization by computing the similarities of automated summaries and human summaries and scoring the automated summaries by their similarities to the human ones. Several schemes are used in our experiment, as well as the effects of stop words and stemming. Our method experimental result is compared to Rouge which is based on n-gram. The test materials for experiments are from DUC 2005 corpus. The results show that our novel scheme produces acceptable results, and may avoid some defects of n-gram. © 2008 IEEE.

关键词： Automation

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Trust factors in P2P networks

Trust factors in P2P networks

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1st IEEE International Workshop on Semantic Computing and systems, WSCS 2008

作者： Chen, Xue Chen, Guisheng Liu, Jin Luo, Xiangfeng Li, Xuhui Li, Bing Digital Content Computing and Semantic Grid Group Joint Lab. of Next-Generation Internet Interactive Computing Shanghai University 200072 China State Key Lab. of Software Engineering Wuhan University 430072 China Institute of Electronic System and Engineering of China Beijing 100039 China

ISBN: (纸本)9780769533162

P2P networks have become a popular way to share large volumes of data due to its open and anonymous nature. P2P network model is designed with the targets of decentralization, well-scaling, fault-tolerance and low cost. Meanwhile however, new targets bring new challenges. P2P network expose more security threats due to its open and anonymous nature. P2P networks are vulnerable to attacks by malicious peers that have an incentive to spread viruses, inauthentic data, or provide poor quality services. In this paper, we analyze the potential trust problems for different kinds of P2P networks, and then present the general trust factors that are indispensable for building trust models in any kinds of networks. © 2008 IEEE.

关键词： Peer to peer networks

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Stability of Hybrid Impulsive systems With Time Delays and Stochastic Effects

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IFAC Proceedings Volumes 2008年第2期41卷 5933-5938页

作者： Zhichun Yang Yiguang Hong Key Laboratory of Systems and Control Institute of Systems Science Chinese Academy of Sciences Beijing 100080 China Chongqing Key Lab of Operations Research and System Engineering Department of Mathematics and Computer Science Chongqing Normal University Chongqing 400047 China

In this paper, a class of hybrid impulsive systems with time delays and stochastic effects are considered. We obtain some criteria on the global exponential stability in mean square for the impulsive stochastic delayed systems. To do this, differential inequalities and ℒ-operator inequalities are developed. An example is given to illustrate the effectiveness of our results.

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Trust Factors in P2P Networks

Trust Factors in P2P Networks

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IEEE International Workshop on Semantic Computing and systems, WSCS

作者： Xue Chen Guisheng Chen Jin Liu Xiangfeng Luo Xuhui Li Bing Li The Digital Content Computing and Semantic Grid Group Joint Lab of Next-Generation Internet Interactive Computing Shanghai University China Institute of Electronic System Engineering of China Beijing China The State Key Lab of Software Engineering Wuhan University of China China

ISBN: (纸本)9780769533162

P2P networks have become a popular way to share large volumes of data due to its open and anonymous nature. P2P network model is designed with the targets of decentralization, well-scaling, fault-tolerance and low cost. Meanwhile however, new targets bring new challenges. P2P network expose more security threats due to its open and anonymous nature. P2P networks are vulnerable to attacks by malicious peers that have an incentive to spread viruses, in authentic data, or provide poor quality services. In this paper, we analyze the potential trust problems for different kinds of P2P networks, and then present the general trust factors that are indispensable for building trust models in any kinds of networks.

关键词： Trust factors P2P networks Topology P2P network topology Nonprofit Organizations Trust trust Quality of service large volume data

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Study of Non-Conventional Instrument Transformer and IEC61850 impact on current differential protection

Study of Non-Conventional Instrument Transformer and IEC6185...

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IEEE/PES Transmission and Distribution Conference and Exposition: Latin America

作者： K. L. S. Shenxing X. Dong Z. Bo State Key Lab of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 100084 China Tsinghua University Beijing Beijing CN State Key Laboratory 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

Non conventional instrument transformer (NCIT) and IEC 61850 are crucial technologies in digital substations. But they bring some new uncertainties to protection IEDs, especially the time synchronization issue in current differential protection. The paper analyzes the time delay of transferring sampled values from NCIT to current differential relay in NCIT and IEC61850 based digital substation, then finds out the delay-non-deterministic problem, at last presents a novel current differential protection scheme by using phase-locked loops (PLL ) technology.

关键词： Substations Delay effects Ethernet networks Phase locked loops IEC Synchronization Data communication

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Preparation of TiO films by cathode multi arc ion and its performance

Preparation of TiO films by cathode multi arc ion and its pe...

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International Nano-Optoelectronic Workshop, iNOW

作者： Duojin, Fan Duowang, Fan Chenglong, Wang Lingxiao, Ming Lin, Zhao Hongzhong, Liu Lanzhou Dachen Automatic Control System Co. Ltd. Lanzhou 730070 China MOE Key Lab. of Opto-electronic Technology and Intelligence Control Lanzhou Jiaotong University Lanzhou 730070 China State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China

TiO films were prepared by custom-made Cathode Multi Arc Ion equipment. Experimental test results reveal that our equipment can easly deposite big area scale TIO, particle size is in nanometer scale. © 2007 IEEE.

ISBN: (纸本)1424415918

关键词： Particle size

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Short-term Reliability Online Evaluation Basing On Transient State Probability

Short-term Reliability Online Evaluation Basing On Transient...

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IEEE General Meeting Power& Energy Society

作者： Lin Cheng Haitao Liu Xin Zou Yuanzhang Sun Electrical Engineering Department at Tsinghua University Electrical Engineering School State Key Lab of Power System Control and Simulation Tsinghua University

The reliability of the power system in a future short term is studied according to the current state. Basing on this, we can alarm and prevent the outage to assure the safety and reliability of the power system. Traditional reliability is an expected value of long-term reliability level under the fixed operating mode, which cannot reflect the real time reliability level under the current operational state. This essay presents the novel conception and algorithm of online evaluating the short-term reliability in order to study the operational reliability level. The influence of the variable system states on the reliability level is reflected according to the real time operational information provided by the SCADA/EMS/WAMS. Markov process is adopted to solve the transient state probability of the components, so that forecasting the system state basing on the transient probability is possible. The probability of the system state and the reliability indices of the system changes as the time varying. The analysis and the assessment of IEEE RTS-79 system indicates that there are great differences between the short-term and long-term reliability indices, and only the transient probability evaluation can assess the short-term probability properly. In this paper the relationship between the enumerating number of the system states and the forecasting time is also studied. The result indicates that only a few system states are needed to get relative high degree of evaluation accuracy, which can be applied online. IEEE RTS-79 case study is calculated to verify this conclusion.

关键词： Power system reliability Power system transients Power system security Markov processes Real time systems Steady-state Reliability theory Safety Medical services Time varying systems

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Synthesis and photocatalytic capability of Cr-TiO2 film

Synthesis and photocatalytic capability of Cr-TiO2 film

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International Nano-Optoelectronic Workshop, iNOW

作者： Xiaojuan, Lu Duowang, Fan Duojin, Fan Hongzhong, Liu School of Automation and Electric Engineering Lanzhou Jiaotong University Lanzhou 730070 China MOE Key Lab. of Opto-electronic Technology and Intelligence Controll Lanzhou Jiaotong University Lanzhou 730070 China Lanzhou Dachen Automatic Control System Co. Ltd. Lanzhou 730070 China State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China

A TiO2 catalyst doped by Cr was prepared by the sol-gel method and characterized by UV-2550 and FS. The results revealed that the Cr 6+-doped TiO2 film had the higher photocatalytic activity than pure TiO2 film. ©... 详细信息

ISBN: (纸本)1424415918

关键词： Sol-gel process

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Preparation of TiO films by Cathode Multi Arc Ion and its Performance

Preparation of TiO films by Cathode Multi Arc Ion and its Pe...

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International Nano-Optoelectronics Workshop (i-NOW)

作者： Duojin Fan Duowang Fan Chenglong Wang Lingxiao Ming Lin Zhao Hongzhong Liu Lanzhou Dachen Automatic Control System Company Limited Lanzhou China MOE key lab of Opto-electronic Technology and Intelligence Control Lanzhou Jiaotong University Lanzhou China State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an China

关键词： Cathodes Coatings Scanning electron microscopy Optical films X-ray scattering Substrates Vacuum technology Materials science and technology Automatic control control systems

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