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International Conference on Geoinformatics

作者： Qiuping Li Zhixiang Fang Qingquan Li Xinlu Zong Engineering Research Center of Spatio-Temporal Data Smart Acquisition and Application Ministry of Education of China Wuhan University of China Wuhan China Wuhan University Wuhan Hubei CN School of Computer Science and Technology Wuhan University of Technology Wuhan China

ISBN: (纸本)9781424473014

Emergency evacuation in public places becomes a research focus in recent decades. One major objective of evacuation is to maximize the efficiency of the whole evacuation system. The paper proposes a multiobjective evacuation route assignment model to plan an optimal egress route set for the individual evacuees. The three objectives in the proposed model are to minimize the total evacuation time, minimize the total travel distance of all the evacuees and minimize the congestion during the evacuation process. These objectives need to be satisfied simultaneously while some of them conflict with each other. The travel speed on each road segment is related with the time and the number of evacuees on it during a certain time period. The congestion of a road segment is modeled as the density of evacuees passing it in time and space dimensions. The evacuation route assignment problem can be treated as a combinatorial optimization problem. A multiobjective optimization model based genetic algorithm is adopted to solve the proposed evacuation routing problem. Wuhan Sport center in Wuhan city of China was taken as the experiment scenario to test the performance of the proposed algorithm. The results showed that it can provide some system optimal evacuation plans. Meanwhile, the multi-objective optimization model based genetic algorithm can produce a pareto optimal set rather than single optimal point, thus the model can give alternative strategies for the evacuation policy makers.

关键词： Optimization Biological cells Encoding Buildings Roads Cities and towns Evolutionary computation

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Comparative study of Goal-Oriented Requirements engineering

Comparative study of Goal-Oriented Requirements Engineering

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International Conference on New Trends in Information and Service science, NISS

作者： Naeem Ur Rehman Sarfraz Bibi Sohail Asghar Simon Fong Center of Research in Data Engineering Mohammad Ali Jinnah University Islamabad Pakistan Department of Computer Sciences SZABIST Islamabad Pakistan Faculty of Science and Technology University of Macau Macao China

ISBN: (纸本)9781424469826;9788988678183

Requirements engineering is a sub discipline of Software engineering, which is an important and vital phase in the overall software engineering life cycle. Software as a final product is deemed to fail if it does not fulfill the needs of its users. A number of contributions have been made to refine the requirements engineering process. Most of them attempted to link requirements to goals. This new trend is called as Goal-Oriented Requirement engineering (GORE). A number of goal-oriented RE methods have been subsequently derived by various researches. This paper reviews some of the significant research works done in GORE. The comparative study may serve as a guide for readers to select an appropriate goal-oriented technique for fulfilling his/her requirements engineering needs.

关键词： data engineering Software engineering Electronic government Project management Sociotechnical systems Risk management Design engineering computer architecture Programming

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Disturbance rejection on critical resonant mode in hard disk drives

Disturbance rejection on critical resonant mode in hard disk...

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Asia-Pacific Magnetic Recording Conference (APMRC)

作者： Gangquan Dai Fan Hong Chee Khiang Pang Masaki Nagashima Department of Electrical and Computer Engineering National University of Singapore Singapore Data Storage Institute Agency for Science Technology and Research Singapore Naval Postgraduate School Spacecrali Research and Design Center Monterrey CA USA

In this paper, we propose a control method which combines notch filter and peak filter to provide disturbance rejection at the frequency of critical resonant mode. The settling rate is also improved by time-varying the parameters of the peak filter. Our simulation and experimental results show that the out-of-phase resonant mode is reshaped to an in-phase mode, and the disturbance at the frequency of critical resonant mode is attenuated by 70% with an improved settling rate. The proposed control method is shown to be robust against ± 10% perturbation of natural frequencies.

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Resource management of enterprise cloud systems using layered queuing and historical performance models

Resource management of enterprise cloud systems using layere...

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IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum (IPDPSW)

作者： David A. Bacigalupo Jano van Hemert Asif Usmani Donna N. Dillenberger Gary B. Wills Stephen A. Jarvis School of Electronics and Computer Science University of Southampton UK Data-Intensive Research Group School of Informatics University of Edinburgh UK BRE Centre of Fire Safety Engineering School of Engineering University of Edinburgh UK IBM Thomas J. Watson Research Center Yorktown Heights NY USA High Performance Systems Group Department of Computer Science University of Warwick UK

ISBN: (纸本)9781424465330

The automatic allocation of enterprise workload to resources can be enhanced by being able to make `what-if' response time predictions, whilst different allocations are being considered. It is important to quantitatively compare the effectiveness of different prediction techniques for use in cloud infrastructures. To help make the comparison of relevance to a wide range of possible cloud environments it is useful to consider the following. 1.) urgent cloud customers such as the emergency services that can demand cloud resources at short notice (e.g. for our FireGrid emergency response software). 2.) dynamic enterprise systems, that must rapidly adapt to frequent changes in workload, system configuration and/or available cloud servers. 3.) The use of the predictions in a coordinated manner by both the cloud infrastructure and cloud customer management systems. 4.) A broad range of criteria for evaluating each technique. However, there have been no previous comparisons meeting these requirements. This paper, meeting the above requirements, quantitatively compares the layered queuing and (¿HYDRA¿) historical techniques - including our initial thoughts on how they could be combined. Supporting results and experiments include the following: i.) defining, investigating and hence providing guidelines on the use of a historical and layered queuing model; ii.) using these guidelines showing that both techniques can make low overhead and typically over 70% accurate predictions, for new server architectures for which only a small number of benchmarks have been run; and iii.) defining and investigating tuning a prediction-based cloud workload and resource management algorithm.

关键词： Resource management Clouds Delay Predictive models computer science data engineering Emergency services Disaster management Guidelines Quality of service

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Heavy-quark production in p + p and energy loss and flow of heavy quarks in Au + Au collisions at sNN=200 GeV

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Physical Review C 2011年第4期84卷 044905-044905页

作者： A. Adare S. Afanasiev C. aidala N. N. Ajitanand Y. Akiba H. Al-Bataineh J. Alexander A. Al-Jamel K. Aoki L. Aphecetche R. Armendariz S. H. Aronson J. Asai E. T. Atomssa R. Averbeck T. C. Awes B. Azmoun V. Babintsev G. Baksay L. Baksay A. Baldisseri K. N. Barish P. D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis F. Bauer A. Bazilevsky S. Belikov R. Bennett Y. Berdnikov A. A. Bickley M. T. Bjorndal J. G. Boissevain H. Borel K. Boyle M. L. Brooks D. S. Brown D. Bucher H. Buesching V. Bumazhnov G. Bunce J. M. Burward-Hoy S. Butsyk S. Campbell J.-S. Chai B. S. Chang J.-L. Charvet S. Chernichenko J. Chiba C. Y. Chi M. Chiu I. J. Choi T. Chujo P. Chung A. Churyn V. Cianciolo C. R. Cleven Y. Cobigo B. A. Cole M. P. Comets P. Constantin M. Csanád T. Csörgő T. Dahms K. Das G. David M. B. Deaton K. Dehmelt H. Delagrange A. Denisov D. d'Enterria A. Deshpande E. J. Desmond O. Dietzsch A. Dion M. Donadelli J. L. Drachenberg O. Drapier A. Drees A. K. Dubey A. Durum V. Dzhordzhadze Y. V. Efremenko J. Egdemir F. Ellinghaus W. S. Emam A. Enokizono H. En'yo B. Espagnon S. Esumi K. O. Eyser D. E. Fields M. Finger, Jr. M. Finger F. Fleuret S. L. Fokin B. Forestier Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley K. Fujiwara Y. Fukao S.-Y. Fung T. Fusayasu S. Gadrat I. Garishvili F. Gastineau M. Germain A. Glenn H. Gong M. Gonin J. Gosset Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene M. Grosse Perdekamp T. Gunji H.-Å. Gustafsson T. Hachiya A. Hadj Henni C. Haegemann J. S. Haggerty M. N. Hagiwara H. Hamagaki R. Han H. Harada E. P. Hartouni K. Haruna M. Harvey E. Haslum K. Hasuko R. Hayano M. Heffner T. K. Hemmick T. Hester J. M. Heuser X. He H. Hiejima J. C. Hill R. Hobbs M. Hohlmann M. Holmes W. Holzmann K. Homma B. Hong T. Horaguchi D. Hornback M. G. Hur T. Ichihara H. Iinuma K. Imai M. Inaba Y. Inoue D. Isenhower L. Isenhower M. Ishihara T. Isobe M. Issah A. Isupov B. V. Jacak J. Jia J. Jin O. Jinnouchi B. M. Johnson K. S. Joo D. Jouan F. Kajihara S. Kametani N. Kamihara J. Kamin M. Kaneta J. H. Kang H. Kanou T. Kawag University of Colorado Boulder Colorado 80309 USA Joint Institute for Nuclear Research Dubna Moscow Region 141980 Russia Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA Chemistry Department Stony Brook University Stony Brook SUNY New York 11794-3400 USA RIKEN Nishina Center for Accelerator-Based Science Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA New Mexico State University Las Cruces New Mexico 88003 USA Kyoto University Kyoto 606-8502 Japan SUBATECH (Ecole des Mines de Nantes CNRS-IN2P3 Université de Nantes) BP 20722 F-44307 Nantes France Brookhaven National Laboratory Upton New York 11973-5000 USA Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794 USA Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia Florida Institute of Technology Melbourne Florida 32901 USA Dapnia CEA Saclay F-91191 Gif-sur-Yvette France University of California-Riverside Riverside California 92521 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA University of New Mexico Albuquerque New Mexico 87131 USA PNPI Petersburg Nuclear Physics Institute Gatchina Leningrad Region 188300 Russia Iowa State University Ames Iowa 50011 USA Saint Petersburg State Polytechnic University St. Petersburg 195251 Russia Institut für Kernphysik University of Muenster D-48149 Muenster Germany KAERI Cyclotron Application Laboratory Seoul Korea Yonsei University IPAP Seoul 120-749 Korea KEK High Energy Accelerator Research Organization Tsukuba Ibaraki 305-0801 Japan University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Vanderbilt University Nashville Tennessee

Transverse momentum spectra of electrons (pTe) from semileptonic weak decays of heavy-flavor mesons in the range of 0.3<pTe<9.0 GeV/c have been measured at midrapidity (|y|<0.35) by the PHENIX experiment at t... 详细信息

Transverse momentum spectra of electrons (pTe) from semileptonic weak decays of heavy-flavor mesons in the range of 0.3ailed theoretical calculations can be used to identify the nature of these interactions and to quantify their extent.

关键词： QUARKS COLLISIONS (Nuclear physics) ANISOTROPY RADIOACTIVE decay PIONS SPECTRA

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Production of ω mesons in p + p, d + Au, Cu + Cu, and Au + Au collisions at sNN=200 GeV

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Physical Review C 2011年第4期84卷 044902-044902页

作者： A. Adare S. Afanasiev C. aidala N. N. Ajitanand Y. Akiba H. Al-Bataineh A. Al-Jamel J. Alexander A. Angerami K. Aoki N. Apadula L. Aphecetche Y. Aramaki R. Armendariz S. H. Aronson J. Asai E. T. Atomssa R. Averbeck T. C. Awes B. Azmoun V. Babintsev M. Bai G. Baksay L. Baksay A. Baldisseri K. N. Barish P. D. Barnes B. Bassalleck A. T. Basye S. Bathe S. Batsouli V. Baublis F. Bauer C. Baumann A. Bazilevsky S. Belikov R. Belmont R. Bennett A. Berdnikov Y. Berdnikov J. H. Bhom A. A. Bickley M. T. Bjorndal D. S. Blau J. G. Boissevain J. S. Bok H. Borel K. Boyle M. L. Brooks D. S. Brown D. Bucher H. Buesching V. Bumazhnov G. Bunce J. M. Burward-Hoy S. Butsyk C. M. Camacho S. Campbell A. Caringi J.-S. Chai B. S. Chang J.-L. Charvet C.-H. Chen S. Chernichenko C. Y. Chi J. Chiba M. Chiu I. J. Choi J. B. Choi R. K. Choudhury P. Christiansen T. Chujo P. Chung A. Churyn O. Chvala V. Cianciolo Z. Citron C. R. Cleven Y. Cobigo B. A. Cole M. P. Comets Z. Conesa del Valle M. Connors P. Constantin M. Csanád T. Csörgő T. Dahms S. Dairaku I. Danchev K. Das A. Datta G. David M. K. Dayananda M. B. Deaton K. Dehmelt H. Delagrange A. Denisov D. d’Enterria A. Deshpande E. J. Desmond K. V. Dharmawardane O. Dietzsch A. Dion M. Donadelli J. L. Drachenberg O. Drapier A. Drees K. A. Drees A. K. Dubey J. M. Durham A. Durum D. Dutta V. Dzhordzhadze L. D’Orazio S. Edwards Y. V. Efremenko J. Egdemir F. Ellinghaus W. S. Emam T. Engelmore A. Enokizono H. En'yo B. Espagnon S. Esumi K. O. Eyser B. Fadem D. E. Fields M. Finger M. Finger, Jr F. Fleuret S. L. Fokin B. Forestier Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley K. Fujiwara Y. Fukao S.-Y. Fung T. Fusayasu S. Gadrat I. Garishvili F. Gastineau M. Germain A. Glenn H. Gong M. Gonin J. Gosset Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene G. Grim M. Grosse Perdekamp T. Gunji H.-Å. Gustafsson T. Hachiya A. Hadj Henni C. Haegemann J. S. Haggerty M. N. Hagiwara K. I. Hahn H. Hamagaki J. Hamblen R. Han J. Hanks H. Harada E. P. Hartouni K. Haruna M. Harvey E. Haslum K. Hasuko R. Hayano X. He M University of Colorado Boulder Colorado 80309 USA Joint Institute for Nuclear Research 141980 Dubna Moscow Region Russia Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA Department of Physics University of Massachusetts Amherst Massachusetts 01003-9337 USA Chemistry Department Stony Brook University SUNY Stony Brook New York 11794-3400 USA RIKEN Nishina Center for Accelerator-Based Science Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA New Mexico State University Las Cruces New Mexico 88003 USA Kyoto University Kyoto 606-8502 Japan Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794-3400 USA SUBATECH (Ecole des Mines de Nantes CNRS-IN2P3 Université de Nantes) BP 20722-44307 Nantes France Center for Nuclear Study Graduate School of Science University of Tokyo 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan Physics Department Brookhaven National Laboratory Upton New York 11973-5000 USA Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia Collider Accelerator Department Brookhaven National Laboratory Upton New York 11973-5000 USA Florida Institute of Technology Melbourne Florida 32901 USA Dapnia CEA Saclay F-91191 Gif-sur-Yvette France University of California-Riverside Riverside California 92521 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA University of New Mexico Albuquerque New Mexico 87131 USA Abilene Christian University Abilene Texas 79699 USA PNPI Petersburg Nuclear Physics Institute Gatchina Leningrad region 188300 Russia Institut fur Kernphysik University of Muenster D-48149 Muenster Germany Iowa State University Ames Iowa 5001

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured ω meson production via leptonic and hadronic decay channels in p+p, d+Au, Cu+Cu, and Au+Au collisions at sNN = 200 GeV. The invariant transverse momentum spectra measured in different decay modes give consistent results. Measurements in the hadronic decay channel in Cu+Cu and Au+Au collisions show that ω production has a suppression pattern at high transverse momentum, similar to that of π0 and η in central collisions, but no suppression is observed in peripheral collisions. The nuclear modification factors, RAA, are consistent in Cu+Cu and Au+Au collisions at similar numbers of participant nucleons.

关键词： MESONS LEPTONS (Nuclear physics) -- Decay HADRONS -- Decay COLLISIONS (Nuclear physics) NUCLEON-nucleon interactions

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Novel colored pulse laser photography for high speed imaging

Novel colored pulse laser photography for high speed imaging

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2009 IEEE 3rd International Conference on Nano/Molecular Medicine and engineering, NANOMED 2009

作者： Liu, Chien-Sheng Lin, Cheng-Hsien Chen, Chia-Hsu Lin, Po-Heng Huang, Chung-I Chang, Cheung-Wen Lin, Chih-Hsun Sun, Yung-Nien Laser Application Technology Center Industrial Technology Research Institute Tainan 734 Taiwan Department of Computer Science and Information Engineering National Cheng Kung University Tainan 70101 Taiwan

ISBN: (纸本)9781424455287

In order to improve the imaging quality of conventional laser photography, this study proposes a new system for colored pulse laser photography to obtain high speed color microscopic imaging. Based on the RGB synthesis technique, three channels of red, green, and blue images are acquired from three cameras with three independent laser light sources. Then, a high quality color image can be obtained by assembling the monochromatic images with the image realignment and color calibration processes. The experimental results show that the proposed system can achieve a high quality colored pulse photography. © 2009 IEEE.

关键词： Light sources

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Efficient importance-based Mac scheduling for video streaming in Bluetooth Piconet

Efficient importance-based Mac scheduling for video streamin...

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2009 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC '09

作者： Liu, Jianfeng Liu, Guoping Zhang, Jinfeng Qin, Shaohua Du, Yong Jin, Huihua School of Computer Science Beijing University of Aeronautics and Astronautics Beijing 100083 China Business Application and Product Research Department China Telecom Beijing Research Institute Beijing 100035 China School of Computer Science and Information Engineering Guangxi Normal University Guilin 541004 China Beijing Transportation Information center Beijing 100055 China

ISBN: (纸本)9781424452187

In order to provide the high quality service for transporting video streaming in the Bluetooth Piconet, in which the bandwidth is limited and the structure is heterogeneous, a MAC scheduling algorithm for video streaming in the Bluetooth Piconet is proposed. The main idea of the algorithm is to model the video streaming and calculate the importance of the packet relative to the video quality before transporting. The packet on the transportation is scheduled by the importance in the MAC layer to attain the maximum perceived quality of the overall Slaves in the Piconet. The simulation shows that the proposed algorithm can assign the network resource more efficiently, and improve the perceived video quality of the Slaves in the Piconet more significantly in contrast with the other algorithms. © 2009 IEEE.

关键词： Video streaming

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Novel colored pulse laser photography for high speed imaging

Novel colored pulse laser photography for high speed imaging

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IEEE International Conference on Nano/Molecular Medicine and engineering (NANOMED)

作者： Chien-Sheng Liu Cheng-Hsien Lin Chia-Hsu Chen Po-Heng Lin Chung-I Huang Cheung-Wen Chang Chih-Hsun Lin Yung-Nien Sun Laser Application Technology Center Industrial Technology and Research Institute Tainan Taiwan Department of Computer Science and Information Engineering National Cheng Kung University Tainan Taiwan

关键词： Equations

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Efficient importance-based MAC scheduling for video streaming in Bluetooth Piconet

Efficient importance-based MAC scheduling for video streamin...

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International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC

作者： Jianfeng Liu Guoping Liu Jinfeng Zhang Shaohua Qin Yong Du Huihua Jin School of Computer Science Beijing Aeronautics and Astronautics University Beijing China Business Application & Product Research Department China Telecom Beijing Research Institute Beijing China School of Computer Science and Information Engineering Guangxi Normal University Guilin China Beijing Transportation Information Center Beijing China

关键词： Streaming media Bluetooth Personal area networks Master-slave Traffic control computer science Transportation Bandwidth Ad hoc networks Round robin

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