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European Conference on Power Electronics and Applications

作者： J. Hamar H. Funato S. Ogasawara I. Nagy Ogasawara & Funato Laboratory Department of Electrical and Electronic Engineering Utsunomiya University Utsunomiya Tochigi Japan Department of Automation and Applied Informatics Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Computer and Automation Institute Hungarian Academy of Sciences (ATOMKI) Hungary

The paper gives an overview of the Yoto project, a novel e-learning initiative to build up an electrical engineering knowledge base. It also presents a new e-module of the project relating to the steady-state operation of DC-DC converters. The multimedia rich module contains numerous interactive tools promoting the high level education in the academy sector and the vocational trainings in the industry. The interactive tools also highly support the circuit design process by enabling fast calculation and access to relevant circuit quantities and waveforms (voltages and currents) in steady-state without long simulations

关键词： Electronic learning DC-DC power converters Humans Steady-state Laboratories informatics Automation Business computer science education Electrical engineering

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Multimedia course for power electronics, nonlinear dynamics and motion control

Multimedia course for power electronics, nonlinear dynamics ...

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IEEE Workshop on Power Electronics Education

作者： P. Bartal P. Bauer J. Hamar R.K. Jardan P. Korondi I. Nagy Z. Suto K. Zaban H. Funato S. Ogasawara Department of Automation and Applied Informatics Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Delft University of Technnology Delft Netherlands Department of Electrical & Electronic Engineering Utsunomiya University Tochigi Japan Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

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STABILIZATION OF CHAOS WITH FPIC: APPLICATION TO ZAD-STRATEGY BUCK CONVERTERS

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IFAC Proceedings Volumes 2005年第1期38卷 1183-1188页

作者： Fabiola Angulo Enric Fossas Carlos Ocampo Gerard Olivar Department of Electrical Electronic and Computer Science Universidad Nacional de Colombia. Cra. 27 No. 64-60 Manizales Colombia Institute of Industrial and Control Engineering Technical University of Catalonia Avda. Diagonal 647 pl 11 08027 Barcelona Spain Department of Systems Engineering Automatics and Industrial Informatics (ESAII) Technical University of Catalonia Rambla Sant Nebridi 10 planta 1 Ed TR-11 08222 Terrasa Spain Department of Applied Mathematics 4 Technical University of Catalonia Avda. Vctor Balaguer s/n E-08800 Vilanova i la Geltru Spain

In this paper a new design for controlling dynamical systems has been applied to buck converters driven with a PWM centered pulse and (Zero Average Dynamics) ZAD-strategy. Chaotic operation has been stabilized with the so-called Fixed Point Induced Control (FPIC) technique. Also, the same converter with delay whose 1-periodic orbit is always unstable, has been stabilized. Simulations are compared with the TDAS stabilization technique. Once a 1-periodic orbit has been stabilized, the dynamics shows the same characteristics and advantages of the ZAD design, such as robustness, fixed switching frequency (with zero average on the sliding surface) and a low output error.

关键词： Chaos Control Theory Converters Nonlinear Control Stabilization methods

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Towards a formal model of CyberRail

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IFIP 18th World computer Congress Topical Sessions

作者： Bjørner, Dines Chiang, Peter Jacobsen, Morten S.T. Hansen, Jens Kielsgaard Madsen, Michael P. Penicka, Martin Department of Computer Science School of Computing National University of Singapore 3 Science Drive 2 Singapore 117543 Singapore Section of Computer Science and Engineering Institute of Informatics and Computer Engineering Technical University of Denmark DK-2800 Kgs Lyngby Denmark Czech Technical University Department of Applied Mathematics Na Florenci 25 110 00 Praha 1 Czech Republic

ISBN: (纸本)1402081561

Based on a number of reports and publications, primarily by Takahiko Ogino [14], [15], [16] (in these proceedings), and [17], on the emerging concept of CyberRail, we attempt to show what a formal domain model of CyberRail might look like, and what benefits one might derive from establishing and having such a formal model. © 2004 Springer Science + Business Media, Inc.

关键词： Abstract data types

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The Healthgrid White Paper 3

The Healthgrid White Paper

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3rd Annual Conference of the Healthgrid Association, Healthgrid 2005

作者： Breton, Vincent Dean, Kevin Solomonides, Tony Aloisio, Giovanni Benkner, Siegfried Bilofsky, Howard Blanquer, Ignacio Brady, Michael Cannataro, Mario Chouvarda, Ioanna Claerhout, Brecht De Moor, Georges De Neve, Wilfried De Wagter, Carlos Fiore, Sandro Hassan, Kinda Heeren, Germaine Hernández, Vicente Herveg, Jean A.M. Hofmann, Martin Jones, Chris Koutkias, Vassilios Lloyd, Sharon Lonsdale, Guy Alonso, Victoria L. Maglaveras, Nicos Maigne, Lydia Malousi, Andigoni Martín-Sánchez, Fernando McClatchey, Richard Medico, Enzo Miguet, Serge Mirto, Maria Montagnat, Johan Nørager1, Sofie Nozaki, Kazunori Oliveira, Ilídio Castro Pennec, Xavier Poullet, Yves Merino, Juan Pedro Sánchez Strizh, Irina G. Taillet, Michel Tristram, Clive Tverdokhlebov, Nikolay Veltri, Pierangelo Ziegler, René CNRS-IN2P3 LPC Campus des Cézeaux AubiereCedex63177 France Internet Business Solutions Group Cisco Systems 9 New Square Bedfont Lakes Middlesex FelthamTW14 8HA United Kingdom University of the West of England Bristol CEMS Coldharbour Lane BristolBS6 6TH United Kingdom Center for Advanced Computational Technologies ISUFI Dept. of Innovation Engineering University of Lecce Via per Monteroni Lecce73100 Italy Institute of Scientific Computing University of Vienna Nordbergstrasse 15 ViennaA-1090 Austria University of Pennsylvania School of Engineering and Applied Science Computer and Information Science Center for Bioinformatics 1416 Blockley Hall 423 Guardian Drive PhiladelphiaPA19104-6021 United States Universidad Politecnica de Valencia Camino de Vera/n Valencia46022 Spain FRS FREng Dept. of Engineering Science Oxford University Parks Road OxfordOX1 3PJ United Kingdom Magna Graecia University of Catanzaro School of Bioinformatics and Biomedical Engineering Campus di Germaneto Viale Europa Germaneto Catanzaro88100 Italy Aristotle University The Medical School Lab of Medical Informatics Box 323 Thessaloniki54124 Greece Custodix NV Verlorenbroodstraat 120 Bus 14 MerelbekeB-9820 Belgium Research in Advanced Medical Informatics and Telematics UZ Gent 5K3 De Pintelaan 185 GentB9000 Belgium Department of Radiotherapy Ghent University Hospital Building P7 De Pintelaan 185 GentB-9000 Belgium Laboratoire LIRIS Université Lumière Lyon 2 Campus Porte des Alpes 5 avenue Pierre Mendès France Bron69676 France av. E.Mounierlaan 83 Brussels1200 Belgium Faculté de Droit de Namur - FUNDP Centre de Recherches Informatiques & Droit 5 rempart de la Vierge Namur5000 Belgium Schloss Birlinghoven Sankt Augustin53754 Germany CERN Geneva 231211 Switzerland Oxford University Computing Laboratory Wolfson Building OxfordOX1 3QD United Kingdom C&C Research Laboratories NEC Europe Ltd. Rathausallee 10 Sankt AugustinD-53757 Germany Medic

ISBN: (纸本)158603510X

Over the last four years, a community of researchers working on Grid and High Performance Computing technologies started discussing the barriers and opportunities that grid technologies must face and exploit for the development of health-related applications. This interest lead to the first Healthgrid conference, held in Lyon, France, on January 16th–17th, 2003, with the focus of creating increased awareness about the possibilities and advantages linked to the deployment of grid technologies in health, ultimately targeting the creation of a European/international grid infrastructure for health. The topics of this conference converged with the position of the eHealth division of the European Commission, whose mandate from the Lisbon Meeting was "To develop an intelligent environment that enables ubiquitous management of citizens’ health status, and to assist health professionals in coping with some major challenges, risk management and the integration into clinical practice of advances in health knowledge." In this context "Health" involves not only clinical procedures but covers the whole range of information from molecular level (genetic and proteomic information) over cells and tissues, to the individual and finally the population level (social healthcare). Grid technology offers the opportunity to create a common working backbone for all different members of this large "health family" and will hopefully lead to an increased awareness and interoperability among disciplines. The first HealthGrid conference led to the creation of the Healthgrid association, a non-profit research association legally incorporated in France but formed from the broad community of European researchers and institutions sharing expertise in health grids. After the second Healthgrid conference, held in Clermont-Ferrand on January 29th–30th, 2004, the need for a "white paper" on the current status and prospective of health grids was raised. Over fifty experts from different areas of grid tec

关键词： Health risks

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Approximating functions using rough sets

Approximating functions using rough sets

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Conference of the North American Fuzzy Information Processing Society - NAFIPS

作者： Z. Pawlak J. Peters A. Skowron Institute of Theoretical and Applied Informatics Polish Academy of Sciences Gliwice Poland Warsaw School of Information Technology Warsaw Poland Department of Electrical and Computer Engineering University of Manitoba Winnipeg MAN Canada Institute of Mathematics University of Warmia and Mazury Warsaw Poland

Approximating of functions that are specified using imperfect knowledge is one of the central issues of many areas such as machine learning, pattern recognition, data mining, or qualitative reasoning. However, we do not have yet satisfactory methods for approximation of functions and developed calculi on function approximations. In the paper we discuss a function approximation using the rough set approach. The main difference with the existing approaches in rough set theory is based on modification of the inclusion measure. This makes it possible to overcome some drawbacks of the previously used definitions. For applications it is important to develop rough measures on approximated objects, in particular on function approximations. The modified inclusion measure is also used to define an exemplary measure, i.e., the rough integral.

关键词： Rough sets Function approximation Information technology Data mining Set theory Particle measurements Extraterrestrial measurements Information systems informatics Mathematics

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A survey of computational methods for determining haplotypes

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1st Computational Methods for SNPs and Haplotype Inference Workshop, 2002

作者： Halldórsson, Bjarni V. Bafna, Vineet Edwards, Nathan Lippert, Ross Yooseph, Shibu Istrail, Sorin Informatics Research Celera Genomics/Applied Biosystems 45 W. Gude Drive RockvilleMD20850 United States University of California San Diego Computer Science and Engineering La JollaCA92093 United States Institute for Biological Energy Alternatives 1901 Research Blvd. 6th floor RockvilleMD20850 United States

ISBN: (纸本)9783540212492

It is widely anticipated that the study of variation in the human genome will provide a means of predicting risk of a variety of complex diseases. Single nucleotide polymorphisms (SNPs) are the most common form of genomic variation. Haplotypes have been suggested as one means for reducing the complexity of studying SNPs. In this paper we review some of the computational approaches that have been taking for determining haplotypes and suggest new approaches. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Genome

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Synchronous machine-turbine drive system with indirect speed control

Synchronous machine-turbine drive system with indirect speed...

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IEEE International Conference on Electric Machines and Drives (IEMDC)

作者： R.K. Jardan I. Nagy Faculty of Electrical Engineering and Informatics Department of Automation and Applied Informatics Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Computer and Automation Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

Dynamic properties of a hybrid system are analyzed that has been developed to generate electric energy by utilizing alternative, renewable and waste energies. The solution is based on a system that consists of a high-speed turbine, coupled to a three-phase permanent magnet synchronous generator, an AC/AC converter and a supervisory control unit. The function of the system is to utilize the energy content of some working medium by a special turbine that converts the energy content of the working medium into electric energy by the generator and the AC/AC converter. The alternative renewable energy sources may include solar energy (direct solar steam system or solar energy with heat exchanger), geothermal energy (with or without heat exchanger) and energy obtained from biomass. Various waste energy sources can also be utilized by applying the system such as the energy that can be obtained during the process of pressure reduction in steam, gas and fluid networks. The electric power generated by the system can be fed back to the utility mains or it can be used in stand-alone mode to supply a selected group of loads. The paper analyses a novel control strategy and principle of the system to ensure optimum performance and economy by using a special solution for ensuring the power equilibrium in the combined mechanical-electric drive.

关键词： Velocity control Turbines Geothermal power generation Solar energy Solar heating Magnetic analysis Hybrid power systems Couplings Permanent magnets Synchronous generators

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A rough set approach to measuring information granules

A rough set approach to measuring information granules

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IEEE Annual International computer Software and Applications Conference (COMPSAC)

作者： J.F. Peters Z. Pawlak A. Skowron Department of Electrical and Computer Engineering University of Manitoba Winnipeg MAN Canada Institute of Theoretical and Applied Informatics Polish Academy of Sciences Gliwice Poland Institute of Mathematics Warsaw University of Technology Warsaw Poland

This article introduces an approach to measures of information granules based on rough set theory. Informally, an information granule is a representation of a multiset (or bag) of real-world objects that are somehow indistinguishable, or similar, or which cause the same functionality. Examples of measures of information granules based on the rough set theory are inclusion, closeness, size, and enclosure. All of these measures are based on rough inclusion. This paper is limited to a consideration of measures of inclusion based on a straightforward extension of classical rough membership functions and closeness based on measurement of separation of equivalence classes in a partition of the universe containing information granules. Measurement of sensor-based information granules has been motivated by recent studies of sensor signals. A sensor signal is a non-empty, finite set of sample sensor signal values temporally ordered. Classification of sensor signals requires measurements of sample signal values over subintervals of time. This article introduces a rough set approach to measuring information granule inclusion and closeness.

关键词： Set theory Size measurement Intelligent sensors informatics Mathematics Electric variables measurement Water resources Helicopters Robots Time measurement

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STATION LAYOUTS IN THE PRESENCE OF LOCATION CONSTRAINTS

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Journal of Interconnection Networks 2002年第1N02期3卷 1-17页

作者： PROSENJIT BOSE EVANGELOS KRANAKIS CHRISTOS KAKLAMANIS LEFTERIS M. KIROUSIS DANNY KRIZANC DAVID PELEG Carleton University School of Computer Science Ottawa Ontario K1S 5B6 Canada University of Patras Department of Computer Engineering and Informatics GR-26504 Patras Greece Wesleyan University Department of Mathematics Middletown CT 06459 USA Weizmann Institute of Science Department of Computer Science and Applied Mathematics Rehovot 76100 Israel

In wireless communication, the signal of a typical broadcast station is transmitted from a broadcast center p and reaches objects at a distance, say, r from it. In addition there is a radius r 0 , r 0 < r, such that the signal originating from the center of the station is so strong that human habitation within distance r 0 from the center p should be avoided. In other words, points within distance r 0 from the station comprise a hazardous zone. We consider the following station layout proble: Cover a given planar region that includes a collection of buildings with a minimum number of stations so that every point in the region is within the reach of a station, while at the same time no interior point of any building is within the hazardous zone of a station. We give algorithms for computing such station layouts in both the one- and two-dimensional cases.

关键词： Approximation algorithm Broadcast station Health hazards Optimal layout Wireless communication

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