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Journal of Information science and engineering: Editorial notice

Journal of Information science and engineering 2005年第5期21卷 i-ii页

作者： Lee, Der-Tsai Amato, Nancy M. Chang, Shih-Fu Chen, Homer H. Chen, Tsuhan Hsu, Tsan-Sheng Hwang, Jenq-Neng Kuo, Sy-Yen Kuo, Tei-Wei Li, Chung-Sheng Tokuyama, Takeshi Wing, Jeannette Wu, Tzong-Chen Yen, John Computer Science at Texas A and M University United States Parasol Laboratory United States IEEE Transactions on Parallel and Distributed Systems Computing Research Association's Committee on the Status of Women in Computing Research CRA-W's Distributed Mentor Program United States Department of Electrical Engineering Columbia University United States Lab. United States College of Electrical Engineering and Computer Science National Taiwan University Taiwan IEEE Transactions on Circuits and Systems for Video Technology IEEE Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA United States ACM ACM SIGACT IEEE Computer Society IICM Austria Research and Development of the Department Multimedia Signal Processing Technical Committee IEEE Signal Processing Society United States IEEE Transactions on Circuits and systems for Video Technology College of Electrical Engineering and Computer Science National Taiwan Ocean University Keelung Taiwan Department of Electrical Engineering National Taiwan University Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan IEEE Technical Committee on Real-Time Systems Computer Science Division IBM T.J. Watson Research Center United States IBM Research Division Graduate School of Information Sciences Tohoku University Japan ACM IPSJ Mathematical Society of Japan Japan Department of Computer Science Computer Science Department Carnegie Mellon University United States National Academies of Science's Computer Science and Telecommunications Board United States Microsoft's Trustworthy Academic Advisory Board Intel Research Pittsburgh's Advisory Board United States Dartmouth's Institute for Security Technology Studies Advisory Committee Canada Sloan Research Fellowships Program Committee United States ACM Taiwan China Information Sciences and Technology Pennsylvania State University United States Laboratory for Intelligent Agents Penn State's School of Info

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Molecular dynamics simulations of the mechanical strength of Si∕Si3N4 interfaces

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Physical Review B 2005年第9期72卷 094115-094115页

作者： Martina E. Bachlechner Jennifer Zhang Ye Wang Jarrod Schiffbauer Steven R. Knudsen Dimitris Korakakis Physics Department West Virginia University Morgantown West Virginia 26506 USA NASA Independent Verification and Validation Facility Science and Engineering Apprenticeship Program—Morgantown High School Morgantown West Virginia 26501 USA Institute for Scientific Research Inc. Fairmont West Virginia 26555 USA Lane Department for Computer Science and Electrical Engineering West Virginia University Morgantown West Virginia 26506 USA

Molecular dynamics simulations are performed on parallel computers to investigate the crystalline Si(111)∕Si3N4(0001) interface that is modeled as an eight-component system. The average total energy per particle and the average kinetic energy per particle of the subsystems are monitored during the preparation of the system. The Young’s modulus of the interface is compared with that of the silicon part alone and that of the silicon-nitride film, respectively. The results for one extended simulation feature a crack in the silicon-nitride film and dislocated atoms in silicon below the crack. Simulations at rates of strain ranging from 0.00125to0.05ps−1 show that for lower strain rates, the systems stretched faster reach their ultimate strength at a higher strain value than those that were stretched more slowly. At the highest strain rates, however, the failure mechanisms change qualitatively indicative of a more ductile behavior.

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Complete pose determination for low altitude unmanned aerial vehicle using stereo vision

Complete pose determination for low altitude unmanned aerial...

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2005 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： L.K. Wang S.-C. Hsieh E.C.-W. Hsueh Fei-Bin Hsaio Kou-Yuan Huang Department of Electrical Engineering National Kaohsiung University of Applied Sciences Kaohsiung Taiwan National Space Program Office Hsinchu Taiwan Institute of Aeronautics and Astronautics National Cheng Kung University Tainan County Taiwan Department of Computer and Information Science National Chiao Tung University Hsinchu Taiwan

A well-developed pose estimation scenario suitable for low altitude unmanned aerial vehicle (UAV) is proposed. By employing dual CCD cameras onboard, the instant pose of UAV can be determined without any use of expensive sensor like gyro. The unscented Kalman filter (UKF) is hereafter introduced to resolve the highly nonlinear system dynamics as well as the measurement process of the pose estimation system. The only measurements recorded are those snapshots of ground targets/landmarks taken by two CCD cameras. The proposed scenario can also detect large angle rotation of UAV. Simulation is conducted via a simple case, both UAV and ground targets are stationary, to show the feasibility and applicability of the proposed scheme. Actual GPS measurement data of ground targets coordinates was recorded for UKF processing. A highlight phenomenon, implied by simulation, reveals that a sudden transition of estimation errors arises at the epoch when the UAV is experiencing a large angle maneuvering up to 180/spl deg/ per second.

关键词： Unmanned aerial vehicles Stereo vision Charge coupled devices Charge-coupled image sensors Nonlinear systems Nonlinear dynamical systems Vehicle dynamics Global Positioning System Coordinate measuring machines Estimation error

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Scientific models management in computational grids

Scientific models management in computational grids

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17th International Conference Scientific and Statistical Database Management, SSDBM 2005

作者： De Brito, Halisson Matos Strauch, Julia De Souza, Jano Moreira Osthoff, Carla COPPE/UFRJ Systems Engineering and Computer Science Program Federal University of Rio de Janeiro PO Box 68511 ZIP Code: 21945-970 Rio de Janeiro RJ Brazil ENCE /IBGE National School of Statistical Sciences 106 S. 401 ZIP Code: 20231-050 R. André Cavalcanti Rio de Janeiro RJ Brazil LNCC National Laboratory for Scientific Computing Av. Getulio 333 Quitandinha Vargas Petrópolis RJ Brazil IM/UFRJ Institute of Mathematics Federal University of Rio de Janeiro PO Box 68511 ZIP Code: 21945-970 Rio de Janeiro RJ Brazil

This paper presents MODENA, an architecture for scientific models management using Computational Grid platform. This architecture is comprised of two systems: ModManager and ModRunner. ModManager deals with knowledge management about scientific models, acting as a scientific models library allowing for cataloguing, searching, reutilization and generation of new models. To achieve this, a metamodel is proposed to classify models, in order to support the organization, searching and retrieving of models. ModRunner manages the execution of models in a Grid environment allowing for model composition to generate a scientific Grid Workflow to be executed by distributed services offered by Grid Services. An initial prototype of ModManager is presented.

关键词： Knowledge management

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Editorial track on E-commerce technologies

Proceedings of the ACM Symposium on Applied Computing

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Proceedings of the ACM Symposium on Applied Computing 2005年 1卷 789-790页

作者： Braynov, Sviatoslav Nunez, Manuel Wurman, Peter R. Bravetti, Mario Cavalli, Ana Cuartero, Fernando Dignum, Frank Greenwald, Amy Hampe, Felix Hexmoor, Henry Jurca, Radu Maamar, Zakaria Miller, Keith Pousttchi, Key Rao, H. Raghav Rodriguez, Ismael Rubio, Fernando Shi, Qi Zhang, Ning Department of Computer Science University of Illinois at Springfield Springfield IL 62703 United States Dept. Sistemas Informáticos y Programación Universidad Complutense de Madrid 28040 Madrid Spain Department of Computer Science North Carolina State University Raleigh NC 27695-7535 United States University of Bologna Italy University of Illinois Springfield United States Get-INT France University of Castilla La Mancha Spain Utrecht University Netherlands Brown University United States Koblenz University Germany University of Arkansas United States Ecole Polytechnique Fédérale de Lausanne Switzerland Zayed University United Arab Emirates Complutense University of Madrid Spain University of Augsburg Germany SUNY Buffalo United States Liverpool John Moores University United Kingdom North Carolina State University United States University of Manchester United Kingdom Department of Computer Science and Engineering University of Illinois Springfield United States Department of Computer Science Universidad Complutense de Madrid Spain Department of Computer Science North Carolina State University United States e-commerce Program NC United States SIGecom Exchanges United States

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Defining a market: Market mitigation by theory versus convenience

Defining a market: Market mitigation by theory versus conven...

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The Hawaii International Conference on System sciences, HICSS 2004

作者： Cardell, Judith B. Picker Engineering Program Department of Computer Science Smith College Northampton MA 01063 United States

The events of the California energy crisis of 2000 quickly led to complaints being filed at the Federal Energy Regulatory Commission (FERC) and subsequent prolonged litigation over prices and profits. The simplicity (perhaps excessively so) of the Commission's procedure for determining mitigated market prices rapidly fell prey to the litigation proceedings and quickly lost any connection it might initially have had to either power engineering or economic reality. This paper examines selected aspects of the California market mitigation process, comparing theoretically desired outcomes of market mitigation with the actual process in California. Results are presented that demonstrate the distortion of such basic steps as market definition and the identification of full incremental costs. The mitigation results and the lessons learned by the various groups involved are analyzed both with respect to engineering and economic realities and with respect to political exigencies. The results in California are then placed in the broader context of a likely end phase of electric industry restructuring.

关键词： Electric industry

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A dry electromigration process for fabricating deep optical channel waveguides on glass and their characterization

A dry electromigration process for fabricating deep optical ...

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作者： Lee, Chin C. Chuang, Ricky W. Elec. Eng. and Computer Science Mat. Science and Engineering Program University of California Irvine CA 92697-2625 United States Electrical Engineering National Cheng Kung University Tainan Taiwan

A dry electromigration technique was developed to fabricate deep multimode channel and planar waveguides on BK7 optical glass. In contrast to earlier ion exchange processes based on thermal diffusion, a relatively high electric field (∼440V/mm) was applied on the glass to accelerate the field-driven ion exchange process by expeditiously replacing host sodium ions in the glass with silver ions. As a result, the process temperature is significantly reduced, leading to lower optical attenuation on the waveguides. Lowest optical loss was achieved on waveguides fabricated at 320°C. The increase on the index of refraction for the planar waveguide was determined to be 0.076 using the prism coupling method. The optical loss for channel waveguides was measured using the edge coupling technique with a 0.6328μm He-Ne laser. Loss of 2dB/cm was obtained for channel waveguides of 25μm in depth, relatively low for waveguides of such depth at red wavelength. The scanning electron microscope (SEM) with energy-dispersive X-ray (EDX) spectroscope was utilized to obtain the concentration profile of silver ions in the waveguide region. A modified Huggins-Sun model with Gladstone-Dale relation was employed to deduce the refractive index profile from the silver ion concentration profile. A nearly step-like profile was observed from every deep multimode waveguide fabricated. © 2004 Elsevier B.V. All rights reserved.

关键词： Electromigration

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Bioinformatics

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IEEE Potentials 2004年第1期23卷 24-27页

作者： Doom, Travis Raymer, Michael Krane, Dan IEEE Wright State University United States Department of Computer Science and Engineering Graduate Faculty in Biomedical Sciences Dayton OH United States WSU Biomedical Sciences Ph.D. Program Forensic Bioinformatics Inc. United States Bioinformatics Research Group Computer Science Department Wright State University United States

No abstract available

关键词： Bioinformatics Biology computing Biological information theory Data analysis Computational biology Proteins Biochemistry Sequences Genomics Large-scale systems

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Cooperation for Creativity in Design

Cooperation for Creativity in Design

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The 8th International Conference on computer Supported Cooperative Work in Design(第八届计算机支持的协同工作设计国际会议)(CSCWD2004)

作者： Adriana Vivacqua Jano de Souza COPPE-Graduate School of Engineering Computer Science Program COPPE-Graduate School of Engineering Computer Science Program DCC/IM-Institute of Mathematics UFRJ-F

Creativity has become an important asset in today'sfast changing environment. It is especially important indesign, which demands innovative solutions for *** believe that creativity can and should beencouraged in work groups. In this paper, we proposea framework for supporting creativity in problemsolving. Through the use of problem, domain and usermodels and information retrieval and agent technology,we hope to support creative cooperative work.

关键词： Collaborative work computer science Mathematics Problem-solving Information retrieval Knowledge management Environmental economics Organizing Product design Writing

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Cooperation for creativity in design

Cooperation for creativity in design

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8th International Conference on computer Supported Cooperative Work in Design

作者： Vivacqua, A de Souza, J Computer Science Program Graduate School Engineering Federal University of Rio de Janeiro Rio de Janeiro Brazil DCC Institute of Mathematics Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)0780379411

Creativity has become an important asset in today's fast changing environment. It is especially important in design, which demands innovative solutions for every project. We believe that creativity can and should be encouraged in work groups. In this paper, we propose a framework for supporting creativity in problem solving. Through the use of problem, domain and user models and information retrieval and agent technology, we hope to support creative cooperative work.

关键词： computer aided design

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