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International Conference on Industrial Electronics, control and Instrumentation

作者： T.-H.S. Li Intelligent Control Lab. Department of Electrical Engineering National Cheng Kung University Tainan Taiwan

In this paper, a combination of fuzzy decision logic and Kalman filter is investigated. The application to one-dimensional radar tracking problem is studied. Simulations illustrate that the fuzzy-Kalman filter can achieve faster transient and better steady-state estimations than the traditional Kalman filter does. The stability analysis of this kind of filter is also examined.< >

关键词： Radar tracking Fuzzy sets Filters Fuzzy logic Equations Fuzzy control Zirconium Decision making Fuzzy systems Radar measurements

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MPSA abstracts

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Journal of Protein Chemistry 1994年第5期13卷 515-543页

作者： Aminlari, Mahmoud Asquith, Thomas Sarlo, Katherine Bailey, Jerome M. Tu, Oanh Issai, Gilbert Ha, Alice Shively, John E. Bell, Alexander W. Baur, Nicole C. Bergeron, John J. M. Ou, Wei -Jia Thomas, David Y. Cianflone, Katherine Baldo, Allain Hincke, Maxwell T. Momparler, Richard L. Laliberté, Josée Thomson, David M. P. Sutherland, M. Besada, Vladimir Gonzalez, Javier Padron, Gabriel Garay, Hilda Reyes, Osvaldo Takao, Toshifumi Shimonishi, Yasutsugu Bischoff, Rainer Roecklin, Dominique Bouchon, Bernadette Klarskov, Klaus Van Dorsselaer, Alain Brake, Patricia G. Pacitti, Anne Higgins, Terry Stevis, Panos Malinowski, John McElhiney, Sue Huang, Janes Vestal, Christine Buckel, Scott D. Stevenson, Tracy Loo, Joseph A. Caffrey, Martin Wang, Jin Wallace, Carmichael J. A. Clark-Lewis, Ian Carraway, C. A. Carothers Huang, J. Li, Y. Juang, S. -H. Gallo, A. Mayer, B. J. Carraway, K. L. Coleman, Patrick L. Sarpong, Daniel Deerfield, David W. Holland-Minkley, Amanda Hempel, John D. Nicholas, Hugh B. Denslow, Nancy D. Folmar, Leroy C. Sullivan, Craig V. Dixon, James D. Mark, Jonathan P. Elicone, Christopher P. Maleknia, Simin D. McGuinness, Brian F. Regnier, Fred E. Afeyan, Noubar B. Dolence, Julia M. Poulter, C. Dale Egorov, Tsezi Musolyamov, Alexander Popineau, Yves Andersen, Jens Roepstorff, Peter Falkenstein, Roberto J. Biscoglio de Jiménez Bonino, Mirtha J. Peña, Clara Gauggel, D. L. Asquith, T. N. Isfort, R. J. Miller, N. S. Cody, D. B. Giblin, Michael F. Wong, Tuck C. Quinn, Thomas P. Grant, Gregory A. Crankshaw, Mark W. Griffith, Scott Schroeder, Steve Quinn, Thomas Guinet, F. Petillot, Y. Chapsal, J. M. Dubayle, J. Greco, F. Barge, O. Forest, E. Valentin, C. Hahn, Frederick M Baker, Jonathan A. Haniu, Mitsuru Kenney, William C. Rohde, Michael F. Harman, James G. Lee, Eun Ju Glasgow, Joel Lew, Sew Fen Belduz, Ali O. Harris, Reed J. Molony, Michael S. Keyt, Lene H. Wu, Shiaw -Lin Hawke, David H. Tso, Jaqueline Early, Sherrell Miller, Chad G. Hayman, G. Thomas Miernyk, Jan A. Hellman, Ulf Wernstedt, Christer Góñez, Jorge H Department of Biochemistry School of Veterinary Medicine Shiraz University Shiraz Iran Corporate Professional & Regulatory Services/Human Safety Dept. The Procter & Gamble Co. Cincinnati Division of Immunology Beckman Research Institute of the City of Hope Duarte Protein Analytic Facility Sheldon Biotechnology Centre USA McGill University Montreal Department of Anatomy USA Biotechnology Research Institute NRC Canada Division of Cardiology Royal Victoria Hospital USA Department of Anatomy University of Ottawa Faculty of Health Science Ottawa Centre de Recherche Pediatrique Hôpital Ste-Justine Université de Montréal Montreal Department of Immunology Montreal General Hospital USA Center for Genetic Engineering & Biotechnology Cuba Institute for Protein Research Osaka University Osaka Japan Protein Analytical Group TRANSGENE S.A. Strasbourg Cedex France Vakgroep Biochemie Fysiologie en Microbiologie Gent Belgium Laborat. de Spectrométrie de Masse Bioorganique URA 31 CNRS Université Louis Pasteur Strasbourg Cedex France Sterling winthrop Inc. Collegeville Lexin Pharmaceutical Corporation Horsham PerSeptive Biosystems Houston Parke-Davis Pharmaceutical Research Division of Warner Lambert Company Ann Arbor Dept. of Chemistry The Ohio State University Columbus USA Dept. of Biochemistry Dalhousie University Halifax Canada Biomedical Research Center University of British Columbia Vancouver Canada Dept. of Biochem. & Molec. Biol. Univ. of Miami Sch. of Medicine Miami The Rockefeller Institute New York Dept. of Cell Biol. & Anat. Univ. of Miami Sch. of Medicine Miami Biosciences Laboratory 3M Co. St. Paul Pittsburgh Supercomputing Center Pittsburgh Department of Molecular Genetics/Biochemistry University of Pittsburgh Pittsburgh Dept. Biochem. and Mol. Biol. University of Florida Gainesville U.S. Environmental Protection Agency Gulf Breeze Dept. Zoology North Carolina State University Raleigh PerSeptive Biosystems Inc. Cambridge Department of Chemistry Univ

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Eigenvalue sensitivity of a speed-sensorless CSI-fed induction motor system

Eigenvalue sensitivity of a speed-sensorless CSI-fed inducti...

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International Conference on Industrial Electronics, control and Instrumentation

作者： Joong-Ho Song Kwang-Bae Kim Myung-Joong Youn Control Systems Lab. KIST Seoul South Korea Departmentof Electrical Engineering KAIST Taejon South Korea

ISBN: (纸本)0780308913

The evaluation and interpretation of eigenvalue sensitivity for a speed-sensorless LCCSI-fed induction motor drive system are presented. It is well known that the sensitivity of the dynamic stability with respect to any parameter variations of the system matrix, A, can be characterized by the sensitivity of the eigenvalues with respect to the parameter variations. Based on a control system devised for stable operation of the LCCSI-induction motor system without a speed sensor, the eigenvalue sensitivity analysis corresponding to the three related control plants from open loop to closed loop is described. The eigenvalue sensitivity analysis clearly shows the possible sources of the system instability as well as comprehensive results against the system parameter variations over the nominal operating frequency range.< >

关键词： Eigenvalues and eigenfunctions Induction motors control systems Open loop systems Voltage control Induction motor drives Stability Sensitivity analysis Linear feedback control systems Sensor systems

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A method of wind shear detection for powered-lift stol aircraft

A method of wind shear detection for powered-lift stol aircr...

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Flight Simulation and Technologies, 1993

作者： Funabiki, Kohei Bando, Toshio Tanaka, Keiji Hynes, Charles S. Hardy, Gordon H. National Aerospace Laboratory Tokyo Japan NASA Ames Research Center Moffett Field CA United States Human Engineering Lab. Control Systems Division Japan Flight Research Division Japan Flight Dynamics and Controls Branch Japan Flight Operations Branch Japan

This paper deals with a new wind shear warning system for powered-lift STOL aircraft evaluated by using a flight simulator. Existing wind shear warning systems for CTOL aircraft have been so designed as to detect horizontal shear only. Because the approach air speed of STOL aircraft is lower than that for CTOL aircraft, STOL aircraft are more vulnerable to vertical wind. This vulnerability is caused by the following three factors: (1) The gradient of horizontal shear is smaller for STOL than for CTOL aircraft because of slower airspeed;(2) STOL aircraft spend a longer time in downdraft;and (3) vertical wind causes a more radical change in the STOL aircraft's flight path because of its lower airspeed. In order to detect the vertical wind, the wind shear warning system proposed in this paper calculates the difference between potential flight path measured on-board during shear traversal and trimmed flight path estimated from aircraft status. The most characteristic feature of this new system is that it utilizes only inertial information and pitot-static airspeed data. This yields a convenient means of on-board implementation. A series of simulation tests were conducted by using the mathematical model of "ASKA", an experimental STOL aircraft developed by National Aerospace lab.ratory of Japan, and a wind shear model formulated by R.S. Bray1 with added turbulence. The test results confirmed that the new system could successfully detect the vertical shear. This wind shear detection method was confirmed by a piloted flight simulation to determine STOL airworthiness2, and has potential for improved protection of STOL aircraft against vertical shear. © 1993 American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

关键词： VTOL/STOL aircraft

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Fuzzy neural computing systems

Fuzzy neural computing systems

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First International Conference on Fuzzy Theory and Technology Proceedings, Abstracts and Summaries

作者： Gupta, Madan M. Intelligent Systems Research Lab. College of Engineering University of Saskatchewan Saskatchewan Sask. Canada

In this paper we give some basic principles of fuzzy neural computing using synaptic and somatic operations. We first briefly review the neural systems based upon conventional synaptic (confluence) and somatic (aggregation) operations. Then we provide a detailed neuronal morphology based upon fuzzy logic and its generalization in the form of T-operators. For such fuzzy logic based neurons, we then develop the learning and adaptation algorithm.

关键词： Fuzzy sets

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CAD/CAM integration via skeleton-based modeling

CAD/CAM integration via skeleton-based modeling

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IEEE International Conference on systems, Man, and Cybernetics, SMC 1992

作者： Lee, Ta-Chih Chu, Chong-Nam Kashyap, Rangasami L. Engineering Research Center for Intelligent Manufacturing Systems Knowledge-Based Systems Lab. School of Electrical Engineering Purdue University West LafayetteIN47907 United States Engineering Research Center for Intelligent Manufacturing Systems School of Industrial Engineering Purdue University West LafayetteIN47907 United States

ISBN: (纸本)0780307208

In this paper, we present an efficient parallel thinning algorithm for extracting both the medial surface and the medial axis (skeleton) of a three-dimensional (3-D) object constructed using a geometric solid modeler. First, the object is converted into its voxel model using a ray tracing and a filling scheme. A new Euler table is derived to ensure the invariance of Euler characteristic. An octree data structure of 3×3×3 lattice points Is constructed to examine the local connectivity. By preserving the Euler characteristic and the connectivity, our algorithm drastically reduces noisy branches in the skeleton. Pre- and postprocessors are used to remove additional noise spurs. A noise-free skeleton model is constructed. The constructed model has useful applications in linking CAD and CAM such as in casting and forging defect analysis. © 1992 IEEE.

关键词： Computer aided design

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Symbolic representation of three-dimensional objects to aid local and global shape analysis for defect prediction of casting design

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Applied Intelligence 1991年第2期1卷 99-120页

作者： You, I.C. Chu, C.N. Kashyap, R.L. Engineering Research Center for Intelligent Manufacturing Systems Purdue University West Lafayette 47907 Indiana United States Knowledge-Based Systems Lab. School of Electrical Engineering Purdue University West Lafayette 47907 Indiana United States Engineering Research Center for Intelligent Manufacturing Systems Purdue University West Lafayette 47907 Indiana United States School of Industrial Engineering Purdue University West Lafayette 47907 Indiana United States Engineering Research Center for Intelligent Manufacturing Systems Purdue University West Lafayette 47907 Indiana United States Knowledge-Based Systems Lab. School of Electrical Engineering Purdue University West Lafayette 47907 Indiana United States

Part descriptions of a 3-D computer-aided design model are in a form of basic geometry and topology to which manufacturing process and engineering analysis cannot be directly applied. A formalism for symbolic representation of a three-dimensional pattern model is presented to aid local and global shape analysis of casting design. Local shape analysis is carried out based on symbolic representation and global shape analysis is performed by analyzing the extracted skeleton from a discretized object. The purpose of local shape analysis is to reason about local shape characteristics so as to alter the design to obey casting requirement. On the other hand, the purpose of global shape analysis is to locate and measure global shape characteristics, thus allowing the system to aid the decision making process in evaluating the global casting soundness. The main aim of developing an expert system for casting design is to provide the casting designer with a tool for on-line manufacturability evaluation of a part design while the functional design is being performed. This paper explains the basic concepts of the three-dimensional pattern model and describes its use for castability evaluation of casting design. An implementation of the algorithms and examples are provided. © 1991 Kluwer Academic Publishers.

关键词： Casting design feature pattern model skeleton extraction

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Active camera controlling for manipulation

Active camera controlling for manipulation

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Conference on Computer Vision and Pattern Recognition (CVPR)

作者： J.Y. Zhen F. Kishino Q. Chen S. Tsuji ATR Commun. Syst. Res. Lab. Kyoto Japan ATR Communication Systems Research Laboratories Kyoto Japan Department of Control Engineering Osaka University Osaka Japan

A method for object manipulation using an active camera is introduced. By actively moving the camera to proper positions with desired viewing angle from objects of interest, it is possible to acquire data to realize the robust visual feedback control of a robot. This approach avoids complicated 3-D modeling, and the image processing carried out is driven by tasks. Active camera control for robot guidance and image understanding is addressed.< >

关键词： Cameras Robot vision systems Robot kinematics Uncertainty Humans Robot sensing systems Path planning Feedback Shape Communication system control

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Jet engine technical advisor (JETA) 89

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2nd International Conference on Industrial and engineering Applications of Artificial Intelligence and Expert systems, IEA/AIE 1989

作者： Abu-Hakima, Suhayya Davidson, Philippe Halasz, Mike Phan, Sieu Lab. for Intelligent Systems Division of Electrical Engineering National Research Council of Canada Ottawa Canada

ISBN: (纸本)0897913205

The paper describes a generalized knowledge-based tool for diagnosis which is currently being applied to jet engine maintenance. A domain dependent diagnostic tree is created for a particular jet engine by filling in an empty hypothesis frame for each diagnostic node in the tree. The knowledge in the tree is reasoned about using a generalized and explicit reasoning strategy. This strategy can be guided by rules specific to the activation of a particular diagnostic hypothesis in the tree. The user interacts with the system through a window interface which features definitions, glossary information, schematics and explanations of session reasoning, which are all linked to the knowledge contained in the system. A demonstration prototype which runs under the ART (LISP-based) environment on Symbolics 3620 and Sun 3/60 workstations was completed in December 1988. The preliminary prototype diagnoses a subset of the acceleration faults on the General Electric J85-CAN-15 jet engine and is being field tested and evaluated by potential users. © 1989 ACM.

关键词： Knowledge based systems

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Feedback control of end-point stiffness in a multi-joint limb by FNS

Feedback control of end-point stiffness in a multi-joint lim...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： N. Lan P.E. Crago H.J. Chizeck Applied Neural control Laboratory Department of Biomedical and Systems Engineering Case Western Reserve University OH Appl. Neural Control Lab. Case Western Reserve Univ. Cleveland OH USA

A multivariable proportional-plus-integral (PI) feedback controller for control of endpoint stiffness in a multijoint limb is presented. The controller, operating in the joint coordinate system, uses a driving error vector formed in the endpoint Cartesian coordinates, so that endpoint stiffness at the limb can be regulated. Experimental tests demonstrate stable control of endpoint position and isometric force with zero steady-state error.< >

关键词： Feedback control Force control Proportional control control systems Error correction Muscles Pi control Transmission line matrix methods Testing Knee

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