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Medical Imaging 2009: Biomedical Applications in Molecular, Structural, and Functional Imaging

作者： Feng, Jinchao Jia, Kebin Tian, Jie Yan, Guorui Zhu, Shouping The College of Electronic Information and Control Engineering Beijing University of Technology Beijing 100022 China Medical Image Processing Group Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences P.O. Box 2728 Beijing 100190 China Life Science Research Center Xidian University Xi'an 710071 China

ISBN: (纸本)9780819475138

Bioluminescence tomography (BLT) is a novel in vivo technique in small animal studies, which can reveal the molecular and cellular information at the whole-body small animal level. At present, there is an increasing interest in multispectral bioluminescence tomography, since multispectral data acquisition could improve the BLT performance significantly. In view to the ill-posedness of BLT problem, we develop an optimal permissible source region strategy to constrain the possible solution of the source by utilizing spectrum character of bioluminescent source. Then a linear system to link the measured data with the unknown light source variables is established by utilizing the optimal permissible region strategy based on adaptive finite element analysis. Furthermore, singular value decomposition analysis is used for data dimensionality reduction and improving computational efficiency in multispectral case. The reconstructed speed and stability benefit from adaptive finite element, the permissible region strategy and singular value decomposition. In the numerical simulation, the heterogeneous phantom experiment has been used to evaluate the performance of the proposed algorithm with the Monte Carlo based synthetic data. The reconstruction results demonstrate the merits and potential of our methodology for localizing bioluminescent source. © 2009 SPIE.

关键词： Singular value decomposition

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Yaw control via combined braking and steering

Yaw control via combined braking and steering

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European control Conference (ECC)

作者： B. Vanek B. Kulcsár P. Falcone G. Balas Computer and Automation Research Institute of the Hungarian Academy of Sciences Delft Center for System and Control Department of Signals and Systems Chalmers University of Technology Department of Aerospace Engineering and Mechanics University of Minnesota

Active yaw stabilization for passenger vehicles, following driver yaw rate commands with steer-by-wire and rear break force distribution, is discussed. The problem is solved via a decomposition of the vehicle equations of motion into a static, scheduled tyre characteristics map, and an affine Linear Parameter Varying (LPV) plant. control is provided via a cascade connection of scheduled inverse tyre characteristics and an LPV controller, handling both the nonlinear dynamics an the non-affine tyre characteristics. Excellent tracking results are demonstrated with a high fidelity simulation even in the presence of noise and uncertainty.

关键词： Tires Force Mathematical model Wheels Vehicles Equations Nonlinear dynamical systems

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PyMW - A Python module for desktop grid and volunteer computing

PyMW - A Python module for desktop grid and volunteer comput...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Eric M. Heien Yusuke Takata Kenichi Hagihara Adam Kornafeld Graduate School of Information Science and Technology Osaka University Toyonaka Osaka Japan Laboratory of Parallel and Distributed Systems Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

We describe a general purpose master-worker parallel computation Python module called PyMW. PyMW is intended to support rapid development, testing and deployment of large scale master-worker style computations on a desktop grid or volunteer computing environment. This module targets non-expert computer users by hiding complicated task submission and result retrieval procedures behind a simple interface. PyMW also provides a unified interface to multiple computing environments with easy extension to support additional environments. In this paper, we describe the internal structure and external interface to the PyMW module and its support for the Condor computing environment and the Berkeley Open Infrastructure for Network Computing (BOINC) platform. We demonstrate the effectiveness and scalability of PyMW by performing master-worker style computations on a desktop grid using Condor and a BOINC volunteer computing project.

关键词： Grid computing Concurrent computing computer interfaces Large-scale systems Virtual colonoscopy Distributed computing computer networks Software packages Packaging Information science

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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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Stereo based vision system for cardiac auscultation tele-diagnostic system

Stereo based vision system for cardiac auscultation tele-dia...

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ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009

作者： Kumpituck, S. Kongprawechnon, W. Kondo, T. Nilkhamhang, I. Tungpimolrut, K. Nishihara, A. Sirindhron International Institute of Technology Thammasat University 131 Moo 5 Tiwanont Road Bangkadi Maung Pathumthani 12000 Thailand Industrial Control and Automation Laboratory National Electronics and Computer Technology Center 112 Phahon Yothin Rd. Klong 1 Klong Luang Pathumthani 12120 Thailand Center for Research and Development of Educational Technology Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8552 Japan

ISBN: (纸本)9784907764296

This paper presents a stereo based vision system which will be used to determine the stethoscope location on the human body in a cardiac auscultation tele-diagnostic system. The system is aimed at overcoming the problem of insufficient number of doctors comparing with the higher number of patients. The stereo vision system simulates human vision. The reconstruction of the point in three-dimensional space can be done by using the knowledge of camera calibration, image rectification, epipolar geometry, and disparity computation. © 2009 SICE.

关键词： Stereo vision

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The landscape of international event-based biosurveillance

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Emerging Health Threats Journal 2010年第1期3卷

作者： Hartley, D.M. Nelson, N.P. Walters, R. Arthur, R. Yangarber, R. Madoff, L. Linge, J.P. Mawudeku, A. Collier, N. Brownstein, J.S. Thinus, G. Lightfoot, N. Georgetown University School of Medicine Imaging Science and Information Systems Center Washington DC 20057-1479 2115 Wisconsin Avenue NW United States Georgetown University School of Medicine Washington DC United States Pacific Northwest National Laboratory Richland WA United States Centers for Disease Control and Prevention Atlanta GA United States University of Helsinki Department of Computer Science Helsinki Finland University of Massachusetts Medical School Worcester MA United States Joint Research Centre European Commission Ispra Italy Public Health Agency of Canada Ottawa ON Canada National Institute of Informatics Tokyo Japan Children's Hospital Boston Boston MA United States Harvard University Medical School Boston MA United States European Commission Directorate for Public Health Health Threats Unit Luxembourg Luxembourg Health Protection Agency Central Office London United Kingdom

Event-based biosurveillance is a scientific discipline in which diverse sources of data, many of which are available from the Internet, are characterized prospectively to provide information on infectious disease events. Biosurveillance complements traditional public health surveillance to provide both early warning of infectious disease events as well as situational awareness. The Global Health Security Action Group (GHSAG) of the Global Health Security Initiative is developing a biosurveillance capability that integrates and leverages component systems from member nations. This work discusses these biosurveillance systems and identifies needed future studies.

关键词： Biodefense Biosurveillance Epidemiology Health security Infectious disease Surveillance

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An innovative generation control system for improving design and stability of shipboard medium-voltage DC Integrated Power System

An innovative generation control system for improving design...

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IEEE Electric Ship Technologies Symposium, ESTS

作者： Vittorio Arcidiacono Antonello Monti Giorgio Sulligoi Research & Development Division M. A. I. Control Systems Limited Milan Italy Institute of Automation of Complex Power Systems E.ON Energy Research Center RWTH Aachen University Aachen Germany Department of Electrical Electronic and Computer Engineering University of Trieste Trieste Italy

Ensuring system stability in medium-voltage DC (MVDC) integrated power systems (IPS) is a key issue, due to the presence of many shipboard electric users fed by constant power load (CPL) converters. This paper presents an innovative control system aimed at utilizing alternators, connected to the IPS through controlled AC-DC interface converters, to improve MVDC stable voltage control. Such system is designed to control, for each shipboard generator, the AC machine voltage, the prime mover speed and the interface converter, in an integrated way. Technological aspects and control principle scheme of this system will be presented in the paper, with particular reference to the issue of DC-link voltage stability. This system is expected to bring advantages in terms of MVDC IPS integration, stable parallel operation of generators and loads, safe exploitation of alternators capability as a source of stabilizing power.

关键词： Power system stability DC generators Power generation control systems Medium voltage Power system control Power systems Voltage control Alternators Analog-digital conversion

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Stereo based vision system for cardiac auscultation tele-diagnostic system

Stereo based vision system for cardiac auscultation tele-dia...

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SICE Annual Conference

作者： S. Kumpituck W. Kongprawechnon T. Kondo I. Nilkhamhang K. Tungpimolrut A. Nishihara Sirindhron International Institute of Technology Thammasat University Maung Pathum Thani Thailand National Electronics and Computer Technology Center Industrial Control and Automation Laboratory Klong Luang Pathum Thani Thailand Center of Research and Development of Educational Technology Tokyo Institute of Technology Meguro Tokyo Japan

关键词： Machine vision Humans Stethoscope Stereo vision Biological system modeling Computational modeling Image reconstruction Cameras Calibration Computational geometry

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Robust controller Design for Networked control systems with Nonlinear Uncertainties

Robust Controller Design for Networked Control Systems with ...

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2009 American control Conference (ACC 2009)

作者： Junyan Yu Long Wang Mei Yu Jie Chen Yingmin Jia Intelligent Control Laboratory Center for Systems and Control College of Engineering and Key Laboratory of Machine Perception (Ministry of Education) Peking University Beijing 100871 P.R.China Department of Automation North China Electric Power University Zhuxinzhuang Dewai Beijing 102206 P.R.China Beijing Institute of Technology Key Laboratory of Complex System Intelligent Control and Decision Ministry of Education Beijing 100081 P.R.China Seventh Research Division Beihang University Beijing 100083 P.R. China

ISBN: (纸本)9781424445233

We address robust stabilization problem for networked control systems with nonlinear uncertainties and packet losses by modelling such systems as a class of uncertain switched systems. Based on theories on switched Lyapunov functions, we derive the robustly stabilizing conditions for state feedback stabilization and design packet-loss dependent controllers by solving some matrix inequalities. A numerical example and some simulations are worked out to demonstrate the effectiveness of the proposed design method.

关键词： Networked control systems robust controller design Packet loss control systems design approach Switched systems controller design State feedback Uncertainty nonlinearity

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Fixed point transformations in the adaptive control of fractional-order MIMO systems

Lecture Notes in Control and Information Sciences

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Lecture Notes in control and Information Sciences 2009年 396卷 103-112页

作者： Tar, József K. Rudas, Imre J. Nádai, László Kozlowski, Krzysztof R. MacHado, José A. Tenreiro Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Bécsi út 96/B Budapest H-1034 Hungary Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 Budapest H-1111 Hungary Chair of Control and Systems Engineering Poznań University of Technology ul. Piotrowo 3a Poznań 60-965 Poland Department of Electrotechnical Engineering Institute of Engineering of Porto Rua Dr. Antonio Bernardino de Almeida Porto 4200-072 Portugal

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