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IEEE International Conference on Industrial Technology (ICIT)

作者： A. Shimura Y. Sugawara S. Haruyama M. Nakagawa H. Suzuki A. Kondo T. Ishigure Y. Koike Department of Information and Computer Science Keio University South Korea Department of Information and Computer Science Keio University Department of Applied Physics and Physico-Informatics Keio University South Korea

We propose a new train communication system using optical wireless communication. In the proposed system, graded-index (GI) leaky plastic optical fiber (POF) is used as the communication medium. Since this fiber has the structure where scatterers are mixed in the core of normal GI-POF, the light which is entered through the end of this fiber from laser diode (LD) can be leaked along the fiber. This GI leaky POF and a photo detector are installed in train and the ground, and the light which leaks from this fiber is received continuously by a photo detector. From the measurement results, we confirmed that new GI leaky POF has the broadband and low delay characteristics The experimental results show that this new train communication method using a leaky optical fiber is a very promising technology for the future high-speed data communication between trains and a ground.

关键词： Plastics Optical fibers Optical fiber communication Optical scattering Leak detection High speed optical techniques Wireless communication Light scattering Diode lasers Delay

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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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Formation of synchronized flow at the upper stream of bottleneck in optimal velocity model 10

Formation of synchronized flow at the upper stream of bottle...

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10th IFAC Symposium on Control in Transportation Systems 2003

作者： Kikuchi, M. Sugiyama, Y. Tadaki, S. Yukawa, S. Cybermedia Center Osaka University Toyonaka560-8531 Japan Graduate School of Information Science Nagoya University Nagoya464-8601 Japan Computer and Network Center Saga University Saga840-8502 Japan Department of Applied Physics University of Tokyo Bunkyo113-8656 Japan

The synchronized flow is observed during congestion at the upper stream of a bottleneck. One of the main features of the synchronized flow is the complex behavior in the fundamental diagram (the density-flow relation). computer simulations based on the coupled-map optimal velocity model show that the synchronized flow is observed even in one-lane expressways. The model also reproduces the other features of the congested two-lane traffic at the upper stream of a bottleneck. Copyright © IFAC Control in Transportation Systems, Tokyo, Japan, 2003

关键词： Traffic congestion

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Traffic flow as physics of many-body system 10

Traffic flow as physics of many-body system

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10th IFAC Symposium on Control in Transportation Systems 2003

作者： Sugiyama, Y. Kikuchi, M. Nakayama, A. Nishinari, K. Shibata, A. Tadaki, S.-I. Yukawa, S. Graduate School of Information Science Nagoya University Nagoya464-8601 Japan Cybermedia Center Osaka University Toyonaka560-8531 Japan Gifu Keizai University Ohgaki Gifu503-8550 Japan Department of Applied Mathematics and Informatics Ryukoku University Shiga520-2194 Japan KEK Computer Center Tsukuba Japan Computer and Network Center Saga University Saga840-8502 Japan Department of Applied Physics University of Tokyo Bunkyo113-8656 Japan

In the physical viewpoint, jam formation in traffic flow is essentially the effect of the collective motion in many body system, which changes the macroscopic aspects of the system, as the phase transition or bifurcat...

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Formation of Synchronized Flow at the Upper Stream of Bottleneck in Optimal Velocity Model

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IFAC Proceedings Volumes 2003年第14期36卷 347-351页

作者： M. Kikuchi Y. Sugiyama S. Tadaki S. Yukawa Cybermedia Center Osaka University Toyonaka 560-8531 Japan Graduate School of Information Science Nagoya University Nagoya 464-8601 Japan Computer and Network Center Saga University Saga 840-8502 Japan Department of Applied Physics University of Tokyo Bunkyo 113-8656 Japan

关键词： synchronized flow coupled map optimal velocity bottleneck

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Traffic Flow as physics of Many-Body System

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IFAC Proceedings Volumes 2003年第14期36卷 335-340页

作者： Y. Sugiyama M. Kikuchi A. Nakayama K. Nishinari A. Shibata S.-i. Tadaki S. Yukawa Graduate School of Information Science Nagoya University Nagoya 464-8601 Japan Cybermedia Center Osaka University Toyonaka 560-8531 Japan Gifu Keizai University Ohgaki Gifu 503-8550 Japan Department of Applied Mathematics and Informatics Ryukoku University Shiga 520-2194 Japan KEK Computer Center Tsukuba Japan Computer and Network Center Saga University Saga 840-8502 Japan Department of Applied Physics University of Tokyo Bunkyo 113-8656 Japan

关键词： traffic flow simulation phase transition nonlinear dynamical systems

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Passive and active glass waveguide devices utilizing silicon overlay grating

Passive and active glass waveguide devices utilizing silicon...

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Integrated Photonics Research, IPR 2002

作者： Kim, Jaeyoun Winick, Kim A. Florea, Catalin Department of Electrical Engineering and Computer Science University of Michigan 1301 heal Avenue Ann ArborMI48109 United States Applied Physics Program University of Michigan 1301 heal Avenue Ann ArborMI48109 United States

Bragg gratings fabricated on top of ion exchanged glass waveguides using PECVD-deposited silicon overlays are reported. The resulting Bragg gratings are characterized and transmission dips at 1536 nm in excess of 18 d... 详细信息

ISBN: (纸本)1557527229

关键词： Bragg gratings

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Interconnection of autonomous error-tolerant cells

Interconnection of autonomous error-tolerant cells

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： T. Valtonen T. Nurmi J. Isoaho H. Tenhunen Turku Center for Computer Science Turku Finland Laboratory of Electronics and Information Technology Department of Applied Physics University of Turku Turkey Electronic System Design Laboratory Department of Electronics Royal Institute of Technology Stockholm Sweden

In this paper we propose an interconnection scheme for the autonomous error-tolerant (AET) cell introduced in a paper by Valtonen et al. (2001). The objective here is to partition the system into identical, physically autonomous and highly configurable cells that can operate without outside control or synchronization. In billion transistor Network-on-Chip (NoC) circuits, an AET cell fabric could prove highly flexible and reliable, and allow for low replication costs, due to homogeneousity. However, many challenges persist before a useful system can be constructed: the need for (i) scalable long-distance communication-global bus wiring fits poorly into a homogeneous, symmetric fabric and limits scalability, (ii) flexible communication-cells in all directions, within a given range, should be accessible and (iii) self-synchronizing topologies, due to the absence of external synchronization; (iv) the interconnect scheme is to be implemented using near-future technology generations, and (v) the fabric should be efficient when constituting billions of cells.

关键词： Integrated circuit interconnections Fabrics Network-on-a-chip Communication system control Control systems Flexible printed circuits Telecommunication network reliability Costs Wiring Scalability

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Decentralized supervisory control with single-bit communications

Decentralized supervisory control with single-bit communicat...

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American Control Conference (ACC)

作者： S.L. Ricker G. Barrett Department of Mathematics and Computer Science Mount Allison University Sackville NB Canada System and Information Sciences Group Johns Hopkins University-Applied Physics Laboratory Laurel MD USA

We present a preliminary examination of constrained communication between controllers of a decentralized discrete-event system. Previously, controllers have communicated state estimates and/or partially observed sequences of events. The communication protocol presented here restricts controllers to the communication of a single symbol. The effect of this "singlebit" communication on the generation of a useful communication policy to solve the control problem is examined. The issue of the decidability of decentralized discrete-event control problems with communication is also briefly discussed.

关键词： Supervisory control Communication system control Control systems physics Laboratories Discrete event systems State estimation Mathematics computer science Niobium

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Few-cycle-pulse generation and its applications

Few-cycle-pulse generation and its applications

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Pacific Rim Conference on Lasers and Electro-Optics (CLEO/Pacific Rim)

作者： F.X. Kartner U. Morgner R. Ell E.P. Ippen J.G. Fujimoto V. Scheuer G. Angelow T. Tschudi Department of Electrical Engineering and Information Technology High-Frequency and Quantum Electronics Laboratory University of Karlsruhe Karlsruhe Germany Department of Electrical Engineering and Computer Science Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge MA USA Institute of Applied Physics Technical University of Darmstadt Darmstadt Germany

Sub-two-cycle optical pulses (5 fs) with spectra extending over more than one octave are generated directly from a Kerr-lens modelocked (KLM) Ti:sapphire laser. Applications of this broadband source in optical coheren... 详细信息

关键词： Mirrors Optical pulse generation Bandwidth Nonlinear optics Laser modes Optical resonators Pulse compression methods Space vector pulse width modulation Oscillators Laboratories

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