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Global academy'-remote network applications connecting Japan and Chile over GEMnet2 and R&E networks

NTT Technical Review 2006年第5期4卷 28-38页

作者： Uose, Hisao Oinuma, Morihide Noguchi, Kazuto Sakai, Yoshihisa Tatematsu, Ken'ichi Vera, Eduardo S. Baloian, Nelson Pulgar, Hernán Ramos, Manuel Mujica, Luis Felipe NTT Advanced Technology Corporation Musashino-shi 180-858 Japan NTT Service Integration Laboratories NTT Photonics Laboratories of Japan IEEE IEICE ALMA-J Project Office National Astronomical Observatory of Japan Nagova University Nobeyama Radio Observatory University of Texas Austin Electrical Engineering and Computer Science Departments University of Chile AccessNova Program University of Tokyo Computer Science Department University of Chile Waseda University Japan Astronomy Department University of Chile ALMA Project Office Santiago Mining Section Andina Division CODELCO Andina Division Photonics Network Project IM2 Chile IM2

This article describes two demonstrations at the NTT Group Communication EXPO held at the Tokyo International Forum in December 2005. These showed visitors two of our trials on the feasibility of remotely operating instruments in Chile from Japan: an optical telescope and rock hammers in an underground copper mine. These applications use a relatively high bandwidth of around 100 Mbit/s and require short delay times for smooth interactive operation. To satisfy these requirements we used NTT's experimental research network GEMnet2 in collaboration with partner R&E (research and education) networks in North and South America. The demonstrations showed that Internet-based networks can handle interactive network applications with sufficient quality between two sites separated by almost the maximum possible distance on the Earth as long as the bandwidth and the route are carefully managed.

关键词： Remote control

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Network-oriented document abstraction language: Structure and reference for the rest of the web

Network-oriented document abstraction language: Structure an...

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Extreme Markup Languages 2005 Conference

作者： Iverson, Lee Department of Electrical and Computer Engineering's Software Engineering Program United States

The Web has amply demonstrated the benefits of an infrastructure that makes publishing and reference of semi-structured information easily accessible, but in many cases reference and reuse of such information is only at the level of complete files. The potential for greater benefits that may derive from sub-document structure and reference is currently being explored, but this exploration is limited by the fact that such references can only be used with a portion of the Web's content (i.e. that encoded in XML). We have developed a system, the Network-Oriented Document Abstraction Language (NODAL), that is designed to provide a common data model, schema language and sub-document reference system for web-accessible documents or databases encoded in any format (e.g. images, PDF or Word documents etc.). This system thus provides a common reference and access environment for all structured, semi-structured and unstructured data. In this paper, we describe the data model, schema language and URI-based reference language for NODAL and compare it with XML and other systems. Finally, we outline a number of ways that this system can be extended to allow for composition, synchronization and reuse of documents and databases and can thus form a hypertextual foundation for interactive application development without inhibiting interoperability with existing systems. In essence, with NODAL we can bring the benefits of markup and hypertext to all data formats. Copyright © 2005 Lee Iverson.

关键词： XML

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Chitosan for Biofunctionalization of Microsystems

Chitosan for Biofunctionalization of Microsystems

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IEEE/NLM Life Science Systems and Applications Workshop

作者： Stephan T. Koev Michael A. Powers Vlad Badilita Hyunmin Yi William E. Bentley Gregory F. Payne Gary W. Rubloff Reza Ghodssi Institute for Systems Research ISR University of Maryland College Park MD USA University System of Maryland Adelphi MD US Department of Materials Science and Engineering University of Maryland College Park MD USA Department of Chemical Engineering University of Maryland College Park MD 20742 University of Maryland Biotechnology Institute (UMBI) University of Maryland College Park MD 20742 Bioengineering Graduate Program University of Maryland College Park MD 20742 University of Maryland College Park MD USA University of Maryland Biotechnology Institute College Park MD USA Institute for Systems Research (ISR) University of Maryland College Park MD 20742 Department of Materials Science and Engineering University of Maryland College Park MD 20742 Department of Electrical and Computer Engineering University of Maryland College Park MD 20742 Institute for Systems Research (ISR) University of Maryland College Park MD 20742

ISBN: (纸本)1424402778

We present the use of the polysaccharide chitosan for immobilizing biomolecules on microfabricated device surfaces. The main advantages of chitosan are its abundance of primary amine groups and its ability to be electrodeposited. Biomolecules are easily attached to chitosan 's amines by standard glutaraldehyde chemistry. The electrodeposition of chitosan allows accurate spatial and temporal control of biomolecule placement. We have demonstrated this biofunctionalization method for two different bioMEMS devices: a biophotonic sensor and a micromechanical biosensor. We have successfully assembled probe DNA on each of them and detected hybridization with target DNA as a demonstration of sensor operation. Here, we briefly present the fabrication procedure and testing results for both of these bioMEMS sensing devices

关键词： DNA Biosensors Molecular biophysics Probes Micromechanical devices Optical sensors Optical surface waves Optical interferometry Assembly Biomedical optical imaging

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Teaching reliable, secure and survivable Distributed Control System design

Teaching reliable, secure and survivable Distributed Control...

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2005 ASEE Annual Conference and Exposition: The Changing Landscape of engineering and Technology Education in a Global World

作者： Lessard, R. Beneat, J. Electrical and Computer Engineering Department Norwich University United States Norwich University Electrical Engineering Program United States

Distributed Control Systems (DCS) are deployed in power utilities as well as communication, transportation, and financial infrastructures. As demonstrated by power distribution grid failures, most recently in August of 2003, designing for reliability is an important need. In addition to inherent design weaknesses, critical infrastructures are potential targets of cyber-terrorism and protecting critical infrastructures against terrorist attacks is a national priority. DCS security and survivability need increased attention. One of the Norwich University electrical and computer engineering courses that address these issues is EE411 Microcomputer Based Applications. EE411 is designed to give computer and electrical engineering students a capstone DCS design experience applying concepts covered in earlier courses. They are introduced to "SCAD A ville", a municipal water system emulator modeled after a typical municipal water distribution system. The concepts of safety instrumentation and networking are introduced using Allen Bradley programmable Logic Controllers (PLCs). Students come to understand the advantages and disadvantages of ladder logic code for digital controller reliability. In designing Distributed Control Systems that make any connection to the outside world, the system must withstand attack from disgruntled employees, hackers or cyber terrorists. The system must function well even when the attacker breaks through the security barrier. In the EE411 course, the concepts of redundancy, robustness, and resilience are developed and reinforced in the laboratories.

关键词： engineering education

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ERRATUM: "THE ROLE OF THE BASAL GANGLIA IN EXPLORATION IN A NEURAL MODEL BASED ON REINFORCEMENT LEARNING"

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International Journal of Neural Systems 2006年第3期16卷 227-227页

作者： D. SRIDHARAN P. S. PRASHANTH V. S. CHAKRAVARTHY Program in Neuroscience Stanford University School of Medicine Stanford California 94305 USA Electrical and Computer Engineering Iowa State University Ames Iowa 50011 USA Department of Biotechnology Indian Institute of Technology — Madras Chennai 600036 India

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Incomplete inverse preconditioners

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ARI Bulletin of the Istanbul Technical University 2005年第3期54卷 48-64页

作者： Alvarado, Fernando Dag, Hasan Department of Electrical and Computer Engineering University of Wisconsin Madison 53706 United States Computational Science and Engineering Program Informatics Institute Istanbul Technical University 34469 Maslak Istanbul Turkey

Incomplete LU factorization is a valuable preconditioning approach for sparse iterative solvers. An "ideal" but inefficient preconditioner for the iterative solution of Ax = b is A-1 itself. This paper describes a preconditioner based on sparse approximations to partitioned representations of A-1, in addition to the results of implementation of the proposed method in a shared memory parallel environment. The partitioned inverses are normally somewhat sparse. Their sparsity can be enhanced with suitable ordering and partitioning algorithms. Sparse approximations to these partitioned inverse representations can be obtained either by discarding selected nonzero entries of these inverses or by precluding the creation of some inversion fills. Experimental results indicate that the use of these partitioned incomplete inverses as preconditioners results in excellent highly parallel preconditioners.

关键词： Conjugate gradient Iterative methods Parallel computation Partitioned inverse method Preconditioner

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Work in progress - A unifying set of experiments for digital design

Work in progress - A unifying set of experiments for digital...

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Frontiers in Education - 35th Annual Conference 2005, FIE' 05

作者： Slivovsky, Lynne A. Mealy, Bryan J. Liddicoat, Albert A. Computer Engineering Program Electrical Engineering Department California Polytechnic State University San Luis Obispo CA 93407

ISBN: (纸本)0780390776

Continual advances in technology necessitate on-going updates and modifications to existing digital design laboratory experiments to ensure a quality, state-of-the-art lab experience for both students and instructors. Maintenance of laboratory material in this manner can obscure the original purpose of experiments, specifically in relation to learning objectives, as changes accumulate over time. Our Digital Design I Laboratory is undergoing a transformation with a focus on four areas: continuity of experiments, system integration, independence from lecture, and instructor preparation. A set of experiments with a unifying theme introduces students to modular design techniques and system integration;students combine the results of weekly experiments into a single large design at the end of the quarter. Emphasis is placed ensuring that both the individual labs and final design represent real world applications. Self contained lab experiments with accompanying teaching materials ensure minimal prep time for instructors while providing students with necessary background information to understand and complete laboratory experiments. This paper presents an outline of the new course materials, describes how this new approach relates to course learning objectives, and provides preliminary assessment results comparing student performance in lecture for lab control and experimental groups. © 2005 IEEE.

关键词： engineering education

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The smart medical refrigerator

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IEEE Potentials 2005年第1期24卷 42-45页

作者： Kuwik, Paul Largi, Thomas York, Matt Crump, Dennis Livingston, David Squire, James C. IEEE Engineering Leadership Development Program Lockheed-Martin in Northern Virginia United States IEEE Student Section Department of Electrical and Computer Engineering Virginia Military Institute United States

No abstract available

关键词： geriatrics health care microcontrollers patient care patient monitoring pressure sensors refrigerators active sensor unit alarm alert elderly patient monitor family member geriatric healthcare healthcare provider microcontroller motion sensor passive sen Health Personnel Patient Care motion sensor Geriatrics telephone lines Patients Microcontrollers Health Care Pharmaceutical Preparations Patient Monitoring Pressure Sensor Device Component Medical refrigerator Family Members

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An analysis of unlicensed device operation in licensed broadcast service bands

An analysis of unlicensed device operation in licensed broad...

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2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN 2005

作者： Brown, Timothy X. Interdisciplinary Telecommunication Program Electrical and Computer Engineering Department University of Colorado Boulder CO 80309-0530

ISBN: (纸本)1424400139

Recent FCC proceedings have considered the notion of unlicensed device operation in licensed bands. Licensed users are concerned about harmful interference while unlicensed device manufacturers are concerned that harmful interference is an imprecise design concept. This paper addresses three elements to this debate. First, it advocates for an explicit model of harmful interference to be included in unlicensed device rules. Such a model provides explicit bounded protection to the licensed user while providing assurances and performance goals to the unlicensed device manufacturers. Second, it assesses several proposed methods for unlicensed devices to avoid licensed users and develops variants of each that can achieve the necessary accuracy. Third, it presents an analytic model for assessing harmful interference that not only provides quantitative analysis, but, also provides insight into how factors such as directional antennas, power control, and licensed channel avoidance strategies affect the aggregate interference. Further, it suggests that complex factors such as unlicensed device modulation schemes can be captured in a simple measurement. These ideas are applied to the notice of proposed rulemaking on Unlicensed Operation in the TV Broadcast Bands. © 2005 IEEE.

关键词： Information services

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Fast schemes for computing similarities between Gaussian HMMs and their applications in texture image classification

Fast schemes for computing similarities between Gaussian HMM...

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作者： Chen, Ling Man, Hong Department of Electrical and Computer Engineering Stevens Institute of Technology Castle Point on Hudson Hoboken NJ 07030 United States Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken NJ Department of Electrical and Computer Engineering Computer Engineering Undergraduate Program ECE Department NSA Center of Academic Excellence in Information Assurance School of Engineering IEEE SPS TC for Education

An appropriate definition and efficient computation of similarity (or distance) measures between two stochastic models are of theoretical and practical interest. In this work, a similarity measure, that is, a modified "generalized probability product kernel," of Gaussian hidden Markov models is introduced. Two efficient schemes for computing this similarity measure are presented. The first scheme adopts a forward procedure analogous to the approach commonly used in probability evaluation of observation sequences on HMMs. The second scheme is based on the specially defined similarity transition matrix of two Gaussian hidden Markov models. Two scaling procedures are also proposed to solve the out-of-precision problem in the implementation. The effectiveness of the proposed methods has been evaluated on simulated observations with predefined model parameters, and on natural texture images. Promising experimental results have been observed. © 2005 Hindawi Publishing Corporation.

关键词： Image processing

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