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International Symposium on Parallel Processing

作者： Hsing-Lung Chen Nian-Feng Tzeng Department of Electronic Engineering National Taiwan Institute of Technology Taipei Taiwan Center for Advanced Computer Studies University of Southwestern Louisiana Lafayette LA USA

ISBN: (纸本)0818656026

Reconfiguring a faulty hypercube into a maximal incomplete cube tends to lower potential performance degradation, because a hypercube so reconfigured often results in a much larger system than what is attained by any conventional reconfiguration scheme which identifies only complete subcubes. This paper proposes an efficient strategy for identifying all the maximal incomplete subcubes present in a faulty hypercube. The proposed strategy is distributed in that every healthy node executes the same identification algorithm independently at the same time.< >

关键词： Fault diagnosis Hypercubes Degradation Contracts Performance loss Councils

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Study of ybco-ceramic metal composite superconducting system

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Transactions of the Indian Ceramic Society 1994年第6期53卷 135-139页

作者： Tyagi, Anand K. Sharma, T.P. Shahi, K. Department of Applied Physics Guru Nanak Dev University Amritsar 143005 India Department of Physics Institute of Advanced Studies Meerut University Meerut 250005 India Advanced Centre for Material Science Indian Institute of Technology Kanpur 208016 India Deptt of Applied Physics College of Engineering and Technology Ferozpur Mogha Road India

The composite high T superconductor of YBCO and ceramicmetal BaPb03 has been synthesized via solid state sintering technique by adding PbS to the starting materials. Sulphur ions of PbS were found to substitute for oxygen in YBCO material whereas Pb ions preferred to form BaPb03 which got segregated near grain boundaries of Y-123 phase, forming a composite microstructure. The composite ceramics, having T well above liquid nitrogen temperature, bad three to four times higher flexural strength as compared to pure YBCO. These materials are good candidates to be used in superconducting devices and sensors. © 1994 Taylor & Francis Group, LLC.

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PUBLIC PERCEPTION OF BIOtechnology AND GENETIC-engineering IN SPAIN - TENDENCIES AND AMBIVALENCE

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technology IN SOCIETY 1994年第3期16卷 335-355页

作者： LUJAN, JL MORENO, L [&lowast ]Jos&eacute Luis Luj&aacute n born in 1962 is a social researcher at the Institute for Advanced Social Studies (IESA) within the Spanish National Research Council (CSIC). His main academic interests relate to the philosophy of technology and the sociology of scientific knowledge. He is currently engaged in research projects concerning ethical and social impacts of human genetic engineering (Human Genome Project and genetic screening techniques). He is coauthor of El artefacto de la inteligencia (1989) and The Social Study of Technology: The Case for Public Perception and Biotechnology.[&lowast &lowast ]Luis Moreno born in 1950 is Senior Research Fellow at the Spanish Council for Scientific Research (CSIC) and Vice-Director of the Institute for Advanced Social Studies (IESA) in Madrid. His current research interests cover biotechnology and society ethnicity and territorial politics and social welfare. His publications include Sociology in Spain (with S. Giner 1990) Biotechnologia y Sociedad: Percepcion y Actitudes Publicas (with L. Lemkow and A. Lizon 1992) &ldquo Social Exchange and Welfare Development&rdquo (1993) and &ldquo Multiple Ethnoterritorial Concurrence in Spain&rdquo (1993).

The authors analyze available data concerning the public perception of biotechnology and genetic engineering in Spain. The data show a series of ambivalent attitudes in Spanish public opinion towards these modern technologies. Although research in human genetic engineering is considered to be valuable, its application is questioned from an ethical perspective. Biotechnology is believed to be useful to humanity, yet Spaniards are not in favor of its application to food production. Another aspect of Spanish public opinion is the poor knowledge of the technologies at issue. The authors argue that this situation is caused primarily by the lack of debate in Spanish society concerning the social, legal, ethical, and economic implications of biotechnology and genetic engineering. The absence of public debate on technology in a particular society is a reflection and a cause of that society's failure to engage in the processes of conflict, negotiation, and regulation that lead to the configuration of the technology.

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FUEL-CELL POWER-PLANTS FOR SURFACE FLEET APPLICATIONS

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NAVAL ENGINEERS JOURNAL 1994年第3期106卷 59-76页

作者： GOUBAULT, P GREENBERG, M HEIDENREICH, T WOERNER, J Philippe Goubault:graduated in 1983 from the “Ecole Nationale Superieure de Techniques Avancees” in Paris with a major in naval architecture. After one year of military service with the French navy he worked as naval architect and program director for the French navy between 1984 and 1988. He was in charge of the development of AGNES200 Surface Effect Ship design which completed its sea trials in 1992. He also was responsible for the construction of five ships (four hydrographic vessels and one experimental MCM vessel) which entered service between 1988 and 1991. He has been involved in a number of projects and studies for the U.S. Navy U.S. Coast Guard and other foreign and domestic customers. At Band Lavis & Associates Inc. Mr. Goubault has expanded the computer tools used to conduct parametric analysis of advanced hullforms and has developed cost-effectiveness assessment tools and methodologies for both commercial and military ships. Mr. Goubault is a member of ASNE. Marc Greenberg:is employed as a cost analyst at the cost and economic analysis branch systems assessment and engineering division Naval Surface Warfare Center. He provides cost estimates and analyses of Navy ship and submarine technologies and has assisted in the development of parametric cost models since 1991. Employed as an electronics engineer by the U.S. Army Information Systems Command from 1989 to 1991 he provided support in simulation design and construction of high frequency and microwave communication systems. Mr. Greenberg received his BS degree in ceramic science and engineering from the Pennsylvania State University May 1987. He is a member of MORS. Todd Heidenreich:is employed in the design analysis and tools branch systems assessment and engineering division of the Carde-rock Division Naval Surface Warfare Center. He is involved as a project naval architect in the conceptual design of future surface ship designs future technology impact assessments and the assessment of current domestic and foreign surface ship desig

This paper describes the results of a study undertaken to determine the impact of fuel cell technology on the design and effectiveness of future naval surface combatants. The study involved the collection of data to characterize four different fuel cell technologies: proton exchange membrane, molten carbonate, phosphoric acid, and solid oxide fuel cells. This information was used to expand current computer models to develop specific fuel cell plants that met the power requirements for several applications on a nominal 5000 Lton destroyer and a nominal 2000 Lton corvette. Each of the fuel cell technologies was incorporated into several applications aboard the destroyer and the corvette. These applications included combinations of centralized and distributed ship service power, and propulsion power. In addition, the impact of fuel cell technology was determined for a ship service power backfit option aboard a DDG-51 class destroyer. The results of the impact on the ship designs were analyzed and a military effectiveness assessment was conducted to address such issues as the impact of fuel cells on mobility, survivability, affordability, and on the environment. The paper identifies which aspects of the fuel cell technologies have the greatest impact upon the ship designs and their operational costs. Recommendations are given for future technology development efforts required to make fuel cells suitable for Navy service.

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ASYNCHRONOUS TRANSFER MODE (ATM) OPERATION VIA SATELLITE - ISSUES, CHALLENGES AND RESOLUTIONS

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INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第3期12卷 211-222页

作者： CHITRE, DM GOKHALE, DS HENDERSON, T LUNSFORD, JL MATHEWS, N COMSAT Laboratories 22300 Comsat Drive Clarksburg MD 20871 USA. Received his B.Sc. from the University of Bombay India an M.A. in mathematics from the University of Cambridge U.K. and a Ph.D. in physics from the University of Maryland. He is currently an Associate Executive Director of the Network Technology Division at COMSAT Laboratories. He has been involved in research and development activities in ISDN VSAT networks data communications and network systems and architectures. Prior to his current positions Dr. Chitre was a Principal Scientist in the Network Technology Division at COMSAT Laboratories. Dr. Chitre joined COMSAT Laboratories in 1980. He has made major contributions to the analysis and architecture of data communication ISDN and BISDN via satellite. Dr. Chitre directs and participates in the international and national standards activities in ISDN BISDN and data communication as they apply to satellite communication. He was Chairman of the Working Group on Protocols and Network Timing Function of the CCIR/CCITT Joint Ad Hoc Group on ISDN-Satellite Matters during 1990–1992. Currently he is the Chairman of the Working Group on New Technologies in the ITU Intersector Coordinating Group (ICG) on Satellite Matters. Dr. Chitre was a programme manager during 1990 and 1991 on a contract from INTELSAT on systems studies on satellite communications systems architectures for ISDN and broadband ISDN systems. Currently he is the technical manager of the DoD Contract on ATM via satellite demonstration and the programme manager for the INTELSAT contract on analysis and top-level specification of INTELSAT ISDN subnetworks and SDH compatible transport network. Department manager for ISDN/Data Communications in the Network Technology Division of COMSAT Laboratories. His responsibilities include managing the implementation of next generation telecommunication systems for fixed and mobile satellite systems. Current projects include the development of a high data rate gateway switch that provides for the

Key issues regarding the operation of the broadband integrated services digital network (BISDN) via satellite are presented herein. The specific issues, challenges, and their resolutions are detailed. In particular, the impact of error characteristics and propagation delay on the operation of BISDN via satellite is discussed. Solutions are presented for removing adverse effects and providing high-quality service to users of BISDN via satellite.

关键词： ATM BISDN

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OPTIMAL BUFFER SPACE FOR A PERIODIC REVIEW PRODUCTION INVENTORY SYSTEM WITH INVENTORY-DEPENDENT PRODUCTION-RATE

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INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS 1993年第1期29卷 11-25页

作者： SUNG, CS HAN, YH Department of Industrial Engineering Korea Advanced Institute of Science and Technology Taejon South Korea Department of Business Administration Pusan University of Foreign Studies Pusan South Korea

This paper considers the problem of designing a feeding buffer included in a manufacturing system, in combination with a manufacturing shop equipped with multiple pallets where items (raw material) are periodically delivered in batches, according to the ''order up to R'' inventory policy from a central warehouse to the local feeding buffer and then loaded by pallet for processing at the manufacturing shop whenever pallets are available. The objective is to determine the optimal storage capacity of the feeding buffer, for which the problem analysis is *** a periodic-review inventory model approach under the assumptions that demand rates at the manufacturing shop are dependent on on-hand raw-item inventory (state-dependent) and the periodic review interval is given. In the problem analysis, a sufficient condition for the total cost function to be convex is derived. Therewith, the problem solution is found so as to minimize the sum of the expected inventory holding costs and the expected production loss (due to raw-item shortage) costs.

关键词： Inventory control

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A fault-tolerant permutation network modulo arithmetic processor

A fault-tolerant permutation network modulo arithmetic proce...

引用

1993 International Symposium on VLSI technology, Systems, and Applications, VLSI-TSA 1993

作者： Lin, Ming-Bo Yavuz Oruç, A. Electronic Engineering Department National Taiwan Institute of Technology Taiwan Electrical Engineering Department Institute of Advanced Computer Studies University of Maryland College Park United States

ISBN: (纸本)0780309782

Conventional fault-tolerant or fault detection of modulo arithmetic processor are based on the properties of redundant residue number system which requires L redundant moduli to detect up to L errors and to correct up to L/2 errors. In this paper, we propose a new approach which can concurrently detect the errors of modulo processor based on the separate modulus by mixing use of r-out-of-s residue codes and Berger codes. The result has a simpler architecture and can detect any number of module errors without any redundant moduli. In addition, it can tolerate L faults if L redundant moduli are used. Furthermore, the system also has the property of graceful degradation when the number of faulty modules exceeds L. Finally, the introduced cost for fault-tolerance is much less than those of previous published works. © 1993 IEEE.

关键词： Fault tolerance

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HYBRID SATELLITE AND TERRESTRIAL NETWORKS

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INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第3期12卷 313-327页

作者： CHITRE, DM SHYY, DJ EPHREMIDES, A GUPTA, S COMSAT Laboratories 22300 Comsat Drive Clarksburg MD 20871–9475 USA. Received his B.Sc. from the University of Bombay India an M.A. in mathematics from the University of Cambridge U.K. and a Ph.D. in physics from the University of Maryland. He is currently an Associate Executive Director of the Network Technology Division at COMSAT Laboratories. He has been involved in research and development activities in ISDN VSAT networks data communications and network systems and architectures. Prior to his current positions Dr. Chitre was a Principal Scientist in the Network Technology Division at COMSAT Laboratories. Dr. Chitre joined COMSAT Laboratories in 1980. He has made major contributions to the analysis and architecture of data communication ISDN and BISDN via satellite. Dr. Chitre directs and participates in the international and national standards activities in ISDN BISDN and data communication as they apply to satellite communication. He was Chairman of the Working Group on Protocols and Network Timing Function of the CCIR/CCITT Joint Ad Hoc Group on ISDN/Satellite Matters during 1990–1992. Currently he is the Chairman of the Working Group on New Technologies in the ITU Intersector Coordinating Group (ICG) on Satellite Matters. Dr. Chitre was a programme manager during 1990 and 1991 on a contract from INTELSAT on systems studies on satellite communications systems architectures for ISDN and broadband ISDN systems. Currently he is the technical manager of the DoD Contract on ATM via satellite demonstration and the programme manager for the INTELSAT contract on analysis and top-level specification of INTELSAT ISDN subnetworks and SDH compatible transport network. Received the B.S. degree in electrical engineering from national Chiao-Tung University Hsin-Chu Taiwan in 1983 and the M.S. and Ph.D. degrees in electrical engineering from Georgia Institute of Technology Atlanta GA in 1986 and 1990 respectively. From June 1987 to October 1987 he worked for the Department of Neurology Emory Univers

The role of satellite communications in networks that provide new services, such as frame relay and multimedia, is investigated. Both passive and active (on-board switching/processing) satellite systems are considered. Novel techniques are developed for each system to demonstrate, via detailed analysis and simulation, how the communications bandwidth agility of multipoint/broadcast satellite channels, and the on-board switching/processing, makes it feasible to provide these new services via hybrid satellite and terrestrial networks in a resource-efficient manner.

关键词： HYBRID NETWORKS ON-BOARD PROCESSING FRAME RELAY

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A fault-tolerant permutation network modulo arithmetic processor

A fault-tolerant permutation network modulo arithmetic proce...

引用

International Symposium on VLSI technology, Systems and Applications

作者： Ming-Bo Lin A.Y. Oruc Electronic Engineering Department National Taiwan Institute of Technology Taiwan Electrical Engineering Department Institute of Advanced Computer Studies University of Maryland College Park USA

ISBN: (纸本)0780309782

Conventional fault-tolerant or fault detection of the modulo arithmetic processor are based on the properties of redundant residue number system which requires L redundant moduli to detect up to L errors and to correct up to L/2 errors. In this paper, the authors propose a new approach which can concurrently detect the errors of modulo processor based on the separate modulus by mixing the use of r-out-of-s residue codes and Berger codes. The result has a simpler architecture and can detect any number of module errors without any redundant moduli. In addition, it can tolerate L faults if L redundant moduli are used. Furthermore, the system also has the property of graceful degradation when the number of faulty modules exceeds L. Finally, the introduced cost for fault-tolerance is much less than those of previous published works.< >

关键词： Fault tolerance Arithmetic Circuit faults Fault detection Error correction Electrical fault detection Circuit testing Fault tolerant systems System testing Degradation

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Using Synthetic-Perturbation Techniques for Tuning Shared Memory Programs

Using Synthetic-Perturbation Techniques for Tuning Shared Me...

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International Conference on Parallel Processing (ICPP)

作者： Robert Snelick Joseph Jaja Raghu Kacker Gordon Lyon National Institute for Standards and Technology Gaithersburg MD USA Department of Electrical Engineering Institute for Advanced Computer Studies and Institute for Systems Research University of Maryland College Park MD USA

The Synthetic-Perturbation Tuning (SPT) methodology is base d on compirical approach that introduces artificial delays into the MIMD program and captures the effects of such delays by using the modrn branch statistics... 详细信息

关键词： Delay effects Statistics Parallel processing Data structures Monitoring Degradation Performance analysis Tuning Frequency Timing

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