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Creating Coordination in the Cerebellum Catania, 2–4 October 2003

The Cerebellum 2004年第1期3卷 39-64页

作者： Andjus, P. R. Zhu, L. Strata, P. Arata, A. Ito, M. Bearzatto, B. Servais, L. Baba-Aïssa, F. de Kerchove d’Exaerde, A. Schurmans, S. Cheron, G. Schiffmann, S. N. Bower, J. M. Devor, A. Burguière, E. Rutteman, M. De Zeeuw, C. I. Berthoz, A. Wiener, S. Rondi-Reig, L. Campana, A. Dusart, I. Wherlé, R. Weitzman, J. Yaniv, M. Sotelo, C. Mariani, J. Cavallari, P. Esposti, R. Cerri, G. Cerminara, N. L. Apps, R. Marple-Horvat, D. E. Wagstaff, J. Dan, B. Chorev, E. Manor, Y. Sohl, G. Willecke, K. Yarom, Y. Philipona, D. Dognin, E. Coenen, O. J. Sola, E. Prestori, F. Rossi, P. Taglietti, V. D’Angelo, E. De Filippi, G. Baldwinson, T. Sher, E. Ekerot, C. Jorntell, H. Fernández, G. Martínez, S. Gall, D. Roussel, C. Forti, L. Schiffmann, S. Gruol, D. L. Netzeband, J. G. Quina, L. A. Blakely Gonzalez, P. K. Hoebeek, F. E. Van Alphen, A. M. Schonewille, M. Frens, M. A. Goossens, H. H. L. M. Stahl, J. Ango, F. di Cristo, G. Hagashiyama, H. Bennett, V. Huang, Z. J. Jörntell, H. Ekerot, C.- F. Launey, T. Endo, S. Sakai, R. Harano, J. Lohof, A. M. Sherrard, R. M. Lu, H. Huang, C. Hartmann, M. J. Marshall, S. P. Lang, E. J. Michikawa, T. Mikoshiba, K. Nitschke, M. F. Erdmann, C. Melchert, U. Arp, T. Sprenger, A. Petersen, D. Kömpf, D. Binkofski, F. Heide, W. Pedroarena, C. Schwarz, C. Parsons, L. M. Schmahmann, J. D. Grill, S. E. Walker, M. S. Petacchi, A. Rokni, D. Saito, S. Kato, K. Sajdel-Sulkowska, E. M. Nguon, K. Selimi, F. Wang, Q. Cristea, I. Chait, B. Heintz, N. Serapide, M. F. Cicirata, F. De Saedeleer, C. Schwaller, B. Swinny, J. D. Ijkema-Paassen, J. Metzger, F. Kalicharan, D. Gramsbergen, A. van der Want, J. J. L. Slemmer, J. E. Weber, J. T. Winkelman, B. H. J. Chédotal, A. De Schutter, E. Maex, R. Koekkoek, S. K. E. Bouslama, L. Ghoumari, A. Ebner, T. Häusser, M. Hawkes, R. Herrup, K. Lisberger, S. G. Mugnaini, E. Nunzi, M. -G. Russo, M. Ptak, K. Orr, H. T. Zoghbi, H. Y. Rossi, F. Ruigrok, T. J. H. Sabel-Goedknegt, E. Simpson, J. I. Morando, L. Cesa, R. Dumoulin, A. Dieudonné, S. Dugué, G. Triller, A. Louvi, A. Alexandre, Department for Neuroscience University of Turin Italy Department of Physiology and Biochemistry School of Biology University of Belgrade Serbia & Montenegro Rita Levi Montalcini Center for Brain Repair Department of Neuroscience University of Turin Italy Laboratory for Memory and Learning Brain Science Institute Wako Saitama Japan Laboratory for Memory and Learning BSI (RIKEN) Japan Laboratory of Neurophysiology Université Libre de Bruxelles Campus Erasme Brussels Laboratory of Neurophysiology Université Mons-Hainaut Mons Belgium Laboratory of Electrophysiology Université Mons-Hainaut Mons Belgium Laboratory of Neurophysiology Université Libre de Bruxelles Brussels IRIBHM CP601 Université Libre de Bruxelles Campus Erasme Brussels Health Science Center The Research Imaging Center at The University of Texas San Antonio Cajal Neuroscience Research Center at the University of Texas San Antonio Biology UTSA San Antonio Research Imaging Center UTHSCSA San Antonio USA Massachusetts General Hospital Harvard Medical School NMR Center Charlestown USA CNRS-Collège de France LPPA Paris France Department of Neuroscience Erasmus University Rotterdam Rotterdam The Netherlands Department of Neuroscience Medical Faculty Erasmus MC Rotterdam The Netherlands CNRS-UMR 7102 Labo DVSN Paris Hôpital de la Salpêtrière INSERM U106 Paris France CNRS URA 1644 I. Pasteur Paris France Campus de San Juan Instituto de Neurociencias UMH-CSIC Alicante Group ‘Développement et Vieillissement du Système Nerveux’ UMR CNRS UniversitéP et M Curie Paris France University P& M Curie UMR CNRS St Bernard Paris France Dipartimento di Scienze Precliniche LITA-Vialba Universitd degli Studi Milano Italy Istituto di Fisiologia Umana II Universitd degli Studi Milano Italy Department of Physiology University of Bristol UK Centre for Biophysical and Clinical Research into Human Movement (CRM) Manchester Metropolitan University UK Department of Pediatrics and Department of Biochemistry and M

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A Computationally Efficient Channel Estimation with Signal Detection for MIMO-OFDM Systems

A Computationally Efficient Channel Estimation with Signal D...

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IEEE第14届国际个人无线移动通信大会

作者： S.Suthaharan A.Nallanathan B.Kannan Dept. of Electrical and Computer Engineering National University of Singapore Singapore 119260 Dept. of Electrical and Computer Engineering National University of Singapore Singapore 119260 Institute for Infocomm Research Tele Tech Park Singapore Science Park II Singapore 117674

In this paper, a computationally efficient adaptive channel estimation scheme is proposed for a space-time block coded (STBC) multiple-input multiple-output orthogonal frequency division m

关键词： A Computationally Efficient Channel Estimation with Signal Detection for MIMO-OFDM Systems

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Conventional Quadrature Mixer for Impulse Radio Receivers- Filter Design Issues

Conventional Quadrature Mixer for Impulse Radio Receivers- F...

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IEEE第14届国际个人无线移动通信大会

作者： Wong Sai Ho AS Madhukumar Francois Chin Institute for Infocomm Research #02-34/37 TeleTech Park 20 Science Park Road Singapore Science Park II Singapore 117674 School of Computer Engineering Nanyang Technological University Singapore 639798 Institute for Infocomm Research #02-34/37 TeleTech Park 20 Science Park Road Singapore Science Park II Singapore 117674

One of the distinguishing features of impulse radio or ultra-wideband (UWB) systems is by their broad bandwidth. The resulting power spectral density of UWB systems can become very small due to the

关键词： Filter Design Issues Conventional Quadrature Mixer for Impulse Radio Receivers UWB Section Radio

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Playing with triangulations

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7th Japanese Conference on Discrete and Computational Geometry, JCDCG 2002

作者： Aichholzer, Oswin Bremner, David Demaine, Erik D. Hurtado, Ferran Kranakis, Evangelos Krasser, Hannes Ramaswami, Suneeta Sethia, Saurabh Urrutia, Jorge IICM - Softwaretechnology Graz University of Technology Inffeldgasse 16b/I GrazA-8010 Austria University of New Brunswick P.O. Box 4400 FrederictonNBE3B 5A3 Canada Laboratory for Computer Science Massachusetts Institute of Technology 200 Technology Square CambridgeMA02139 United States Departament de Matemàtica Aplicada II Universitat Politècnica de Catalunya Pau Gargallo5 Barcelona08028 Spain School of Computer Science Carleton University 1125 Colonel By Drive OttawaONK1S 5B6 Canada Institute for Theoretical Computer Science Graz University of Technology Inffeldgasse 16b/I GrazA-8010 Austria Computer Science Department Rutgers University 321 Business & Science Building CamdenNJ08102 United States Department of Computer Science Oregon State University CorvallisOR97331-3202 United States Instituto de Matemáticas Universidad Nacional Autónoma de México Ciudad Univ Área inv. científ. Circ. Ext Coyoacán04510 Mexico

ISBN: (纸本)3540207767

We analyze several perfect-information combinatorial games played on planar triangulations. We introduce three broad categories of such games: constructing, transforming, and marking triangulations. In various situations, we develop polynomial-time algorithms to determine who wins a given game under optimal play, and to find a winning strategy. Along the way, we show connections to existing combinatorial games such as Kayles. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Triangulation

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The design and evaluation of a pipelined image compositing device for massively parallel volume rendering 03

The design and evaluation of a pipelined image compositing d...

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2003 Eurographics/IEEE TVCG Workshop on Volume graphics, VG '03

作者： Ogata, Masato Muraki, Shigeru Liu, Xuezhen Ma, Kwan-Liu Research and Development Department Mitsubishi Precision Co. Ltd. Kamakura Kanagawa Japan Collaborative Research Team of Volume Graphics National Institute of Advanced Industrial Science and Technology Tokyo Japan Department of Computer Science University of California Davis CA United States 345 Kamimachiya Kamakura Kanagawa 247-8505 Japan 2-41-6 Aomi Koto-ku Tokyo 135-0064 Japan One Shields Avenue Davis CA 95616-8562 United States

ISBN: (纸本)1581137451

An experimental study of software image compositing that we have carried out on a 512-node PC cluster shows the necessity of hardware compositing support to make possible real-time volume visualization scalable with large PC clusters. This paper describes the design and performance evaluation of such a hardware image compositing device. A PC cluster using such devices along with commodity graphics cards can enable simultaneous simulation and volume visualization. © The Eurographics Association 2003.

关键词： Volume rendering

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Characterization of Hafnium Oxide Thin Films Prepared By MOCVD

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AIP Conference Proceedings 2003年第1期683卷 176-180页

作者： Siew Fong Choy Vanissa Sei Wei Lim R. Gopalakrishan Alastair Trigg Lakshmi Kanta Bera Shajan Matthew N. Balasubramanian Moon‐Sig Joo Byung‐Jin Cho Chia Ching Yeo 1Institute of Microelectronics 11 Science Park Road Singapore Science Park II Singapore 117685 2Silicon Nano Device Laboratory Department of Electrical and Computer Engineering National University of Singapore 10 Kent Ridge Crescent Singapore 119260

Hafnium oxide thin films deposited by MOCVD were annealed in nitrogen at various temperatures. The as‐deposited films and annealed films were characterized using Auger electron spectroscopy (AES), atomic force microscopy (AFM), X‐ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The films were found to be slightly oxygen deficient. Angle‐resolved XPS revealed oxygen to be residing in two different chemical states, that of oxygen in hafnium oxide, and possibly, a hafnium silicate. Auger depth profiling revealed nitrogen enrichment in an interfacial layer at the film‐substrate interface, which could be the result of an ammonia pre‐treatment prior to deposition. The thickness of this interfacial layer was determined to be ∼ 15 A from TEM. Progressively larger grains were found from AFM measurements with increasing annealing temperature.

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Sort-first, distributed memory parallel visualization and rendering

Sort-first, distributed memory parallel visualization and re...

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IEEE Symposium on Parallel and Large-Data Visualization and graphics (PVG)

作者： E.W. Bethel G. Humphreys B. Paul J.D. Brederson Lawrence Berkeley National Laboratory Berkeley CA USA Department of Computer Science University of Virginia Charlottesville VA USA Tungsten Graphics Inc. Cedar Park TX USA Scientific Computing and Imaging Institute University of Utah Salt Lake UT USA

While commodity computing and graphics hardware has increased in capacity and dropped in cost, it is still quite difficult to make effective use of such systems for general-purpose parallel visualization and graphics. We describe the results of a recent project that provides a software infrastructure suitable for general-purpose use by parallel visualization and graphics applications. Our work combines and extends two technologies: chromium, a stream-oriented framework that implements the OpenGL programming interface; and OpenRM scene graph, a pipelined-parallel scene graph interface for graphics data management. Using this combination, we implement a sort-first, distributed memory, parallel volume rendering application. We describe the performance characteristics in terms of bandwidth requirements and highlight key algorithmic considerations needed to implement the sort-first system. We characterize system performance using a distributed memory parallel volume rendering application, and present performance gains realized by using scene specific knowledge to accelerate rendering by reducing network traffic. The contribution of this work is an exploration of general-purpose, sort-first architecture performance characteristics as applied to distributed memory, commodity hardware, along with a description of the algorithmic support needed to realize parallel, sort-first implementations.

关键词： graphics Rendering (computer graphics) Layout Hardware Concurrent computing Costs Data visualization Application software Chromium Technology management

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MedIGrid: a medical imaging application for computational Grids

MedIGrid: a medical imaging application for computational Gr...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： M. Bertero P. Bonetto L. Carracciuolo L. D'Amore A. Formiconi M.R. Guarracino G. Laccetti A. Murli G. Oliva Department of Computer and Information Science University of Genoa Italy Institute for High Performance Computing and Networking CNR Naples Italy Department of Mathematics and Applications University of Napoli Federico II Italy Department of Clinical Phisiopatology University of Florence Italy

In the last decades, diagnosing medical images has heavily relied on digital imaging. As a consequence, huge amounts of data produced by modern medical instruments need to be processed, organized, and visualized in a suitable response time. Many efforts have been devoted to the development of digital Picture Archiving and Communications Systems (PACS) which archive and distribute image information across a hospital and provide Web access to avoid the expensive deployment of a large number of such systems. On the other hand, this approach does not solve problems related to the increasing demand of high performance computing and storage facilities, which cannot be placed within a hospital. In this work we describe MedIGrid, an application that enables nuclear doctors to transparently use high performance computers and storage systems for the PET/SPECT (Positron Emission Tomography/Single Photon Emission Computed Tomography) image processing, management, visualization and analysis. MedIGrid is the result of the joint efforts of a group of researchers committed to the development of a distributed application to test and deploy new reconstruction methods in clinical environments. The outcomes of this work include a set of platform independent software tools to read medical images, control the execution of computing intensive tomographic algorithms, and explore the reconstructed tomographic volumes. In the paper we describe how the collaboration among different research groups has contributed to the integration of the application into a single framework. The results of our work are discussed.

关键词： Biomedical imaging computer applications Grid computing Medical diagnostic imaging Application software Picture archiving and communication systems Hospitals High performance computing Image storage Positron emission tomography

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Integrating MPI-based numerical software into an advanced parallel computing environment

Integrating MPI-based numerical software into an advanced pa...

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Euromicro Conference on Parallel, Distributed and Network-Based Processing

作者： P. D'Ambra M. Danelutto D. di Serafino M. Lapegna Institute for High-Performance Computing and Networking (ICAR) National Research Council Naples Italy Department of Computer Science University of Pisa Pisa Italy Department of Mathematics Second University of Naples Caserta Italy Department of Mathematics and its Applications University of Naples Federico II Naples Italy

In this paper we present first experiences concerning the integration of MPI-based numerical software into an advanced programming environment for building parallel and distributed high-performance applications, which is under development in the context of Italian national research projects. Such a programming environment, named ASSIST, is based on a combination of the concepts of structured parallel programming and component-based programming. Some activities within the projects are devoted to the definition, implementation and testing of a methodology for the integration of a parallel numerical library into ASSIST. The goal is providing a set of efficient, accurate and reliable tools that can be easily used as building blocks for high-performance scientific applications. We focus on the integration of existing and widely used MPI-based numerical library modules. To this aim, we propose a general approach to embed MPI computations into the ASSIST basic programming unit. This approach has been tested using the MPICH implementation of MPI for networks of workstations. Some modifications have been applied to the MPICH process startup procedure, in order to make it compliant with the ASSIST environment. Results of experiments concerning the integration of routines from a well-known FFT package are discussed.

关键词： Parallel processing Programming environments Parallel programming Testing Libraries Buildings Application software Embedded computing Workstations Packaging

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Multiresolution rendering by sewing trimmed NURBS surfaces

Multiresolution rendering by sewing trimmed NURBS surfaces

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Proceddings Seventh ACM Symposium on Solid Modeling and Applications SM'02

作者： Kahlesz, Ferenc Balázs, Ákos Klein, Reinhard University of Bonn Insitute of Computer Science II Computer Graphics Römerstrasse 164 53117 Bonn Germany

Most of the industrial parts are designed as trimmed NURBS. For their efficient rendering multiresolution models are needed. To create such models without artifacts at the trimming curves, one needs to sew parts together along the common boundaries. Due to the problem of determining the geometric places in 3D space along the trimming curves where sewing should be done, current approaches need to have a priori neighbourhood information of the patches and this way they do not provide an automatic solution to create large connected models just from a set of surfaces. In this paper we describe a method, which automatically determines common boundaries of trimmed NURBS surfaces and sews along them. Such a method provides us a non-manifold or manifold structures which can be handled using standard multi-resolution techniques. Several examples of industrial data demonstrate the efficiency and applicability of our new method. The introduced techniques will also be included into the OpenSG scenegraph API [8] as the basic tool for NURBS rendering.

关键词： computer aided design

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