3,795 research outputs found

    High definition systems in Japan

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    The successful implementation of a strategy to produce high-definition systems within the Japanese economy will favorably affect the fundamental competitiveness of Japan relative to the rest of the world. The development of an infrastructure necessary to support high-definition products and systems in that country involves major commitments of engineering resources, plants and equipment, educational programs and funding. The results of these efforts appear to affect virtually every aspect of the Japanese industrial complex. The results of assessments of the current progress of Japan toward the development of high-definition products and systems are presented. The assessments are based on the findings of a panel of U.S. experts made up of individuals from U.S. academia and industry, and derived from a study of the Japanese literature combined with visits to the primary relevant industrial laboratories and development agencies in Japan. Specific coverage includes an evaluation of progress in R&D for high-definition television (HDTV) displays that are evolving in Japan; high-definition standards and equipment development; Japanese intentions for the use of HDTV; economic evaluation of Japan's public policy initiatives in support of high-definition systems; management analysis of Japan's strategy of leverage with respect to high-definition products and systems

    System software for the finite element machine

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    The Finite Element Machine is an experimental parallel computer developed at Langley Research Center to investigate the application of concurrent processing to structural engineering analysis. This report describes system-level software which has been developed to facilitate use of the machine by applications researchers. The overall software design is outlined, and several important parallel processing issues are discussed in detail, including processor management, communication, synchronization, and input/output. Based on experience using the system, the hardware architecture and software design are critiqued, and areas for further work are suggested

    A cross impact methodology for the assessment of US telecommunications system with application to fiber optics development, volume 1

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    A cross impact model of the U.S. telecommunications system was developed. It was necessary to prepare forecasts of the major segments of the telecommunications system, such as satellites, telephone, TV, CATV, radio broadcasting, etc. In addition, forecasts were prepared of the traffic generated by a variety of new or expanded services, such as electronic check clearing and point of sale electronic funds transfer. Finally, the interactions among the forecasts were estimated (the cross impact). Both the forecasts and the cross impacts were used as inputs to the cross impact model, which could then be used to stimulate the future growth of the entire U.S. telecommunications system. By varying the inputs, technology changes or policy decisions with regard to any segment of the system could be evaluated in the context of the remainder of the system. To illustrate the operation of the model, a specific study was made of the deployment of fiber optics throughout the telecommunications system

    Acoustic Communication for Medical Nanorobots

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    Communication among microscopic robots (nanorobots) can coordinate their activities for biomedical tasks. The feasibility of in vivo ultrasonic communication is evaluated for micron-size robots broadcasting into various types of tissues. Frequencies between 10MHz and 300MHz give the best tradeoff between efficient acoustic generation and attenuation for communication over distances of about 100 microns. Based on these results, we find power available from ambient oxygen and glucose in the bloodstream can readily support communication rates of about 10,000 bits/second between micron-sized robots. We discuss techniques, such as directional acoustic beams, that can increase this rate. The acoustic pressure fields enabling this communication are unlikely to damage nearby tissue, and short bursts at considerably higher power could be of therapeutic use.Comment: added discussion of communication channel capacity in section

    Audiovisual preservation strategies, data models and value-chains

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    This is a report on preservation strategies, models and value-chains for digital file-based audiovisual content. The report includes: (a)current and emerging value-chains and business-models for audiovisual preservation;(b) a comparison of preservation strategies for audiovisual content including their strengths and weaknesses, and(c) a review of current preservation metadata models, and requirements for extension to support audiovisual files

    Method and System for Synchronizing Electronic Program Guides

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    A method (500) for generating a time scheduling (150) of a contents stream (140) distributed to a plurality of terminals (120) is provided. The contents stream is segmented in consecutive segments, each segment defining a corresponding program (Pi). The method includes receiving auxiliary meta data comprising a planned time scheduling of the content stream which has been set in advance and monitoring at least a portion of a segment of the contents stream to extract corresponding content features there from. The method further includes generating a corresponding fingerprint based on the extracted content features and assessing at least one among an actual start time and an actual end time of such segment based on a comparison between said fingerprint and a reference fingerprint associated with such segment. The method still further includes updating the planned time scheduling based on the assessed at least one among the actual start time and the actual end time so as to generate a time scheduling synchronized with the contents stream

    SPCATS (Sound Programme Circuit Automatic Test-Set)

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    On air.

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    Lo Kong Alvin."Architecture Department, Chinese University of Hong Kong, Master of Architecture Programme 1996-97, design report."Includes bibliographical references.Chapter 1.0 --- INTRODUCTIONChapter 1.1 --- GENERAL BACKGROUNDChapter 1.2 --- DEFICIENCY IN RTHKChapter 1.3 --- TECHNOLOGICAL REVOLUTIONChapter 1.4 --- COMPARISONChapter 1.5 --- RATIONALIZATIONChapter 1.6 --- ARCHITECTURAL RESPONSEChapter 1.7 --- SUMMARYChapter 1.8 --- METHODOLOGYChapter 2.0 --- BACKGROUND OF RTHKChapter 2.1 --- OBJECTIVESChapter 2.2 --- ROLES OF RTHKChapter 2.3 --- HISTORYChapter 2.4 --- ORGANIZATIONChapter 2.5 --- OPERATIONChapter 2.6 --- PROGRAMChapter 3.0 --- PHYSICAL CONDITIONS OF EXISTING RTHKChapter 3.1 --- REGIONAL CONTEXT OF KOWLOON TONGChapter 3.2 --- SITE AND FACILITIESChapter 3.3 --- BROADCASTING HOUSEChapter 3.4 --- TELEVISION HOUSEChapter 3.5 --- EDUCATION TELEVISION CENTERChapter 4.0 --- THE PROPOSALChapter 4.1 --- MISSIONChapter 4.2 --- GOALSChapter 4.3 --- OBJECTIVESChapter 4.4 --- PERFORMANCE REQUIREMENTSChapter 4.5 --- SITE OPPORTUNITIESChapter 4.6 --- SCHEDULE OF ACCOMMODATIONChapter 5.0 --- DESIGN REPORTChapter 5.1 --- CONCEPTSChapter 5.2 --- DESIGN DEVELOPMENTChapter 5.3 --- DESIGN OPTIONSChapter 6.0 --- SCHEMATIC DESIGNChapter 6.1 --- CONCEPTChapter 6.2 --- DESIGN OPTIONSChapter 6.3 --- DETAIL DESIGNChapter 7.0 --- RESEARCH AND FIELD WORKS (I) ENERGYChapter 7.1 --- PHOTOVOLTAIC ENGINEERINGChapter 7.2 --- STRUCTURE OF A PHOTOVOLTAIC SYSTEMChapter 7.3 --- ENERGY STORAGEChapter 7.4 --- APPLICATION: SOLAR TELECOMMUNICATIONChapter 8.0 --- RESEARCH AND FIELD WORKS (II) STUDIOChapter 8.1 --- TYPES OF STUDIOSChapter 8.2 --- PERFORMANCE STUDIOSChapter 8.3 --- PRODUCTION STUDIOSChapter 8.4 --- POSTPRODUCTION STUDIOSChapter 8.5 --- MOBILE STUDIOSChapter 8.6 --- PORTABLE EQUIPMENTChapter 8.7 --- STUDIO DESIGNChapter 8.8 --- ERGONOMICSChapter 9.0 --- CASE STUDIESChapter 9.1 --- STUDIO CASE STUDIESChapter 9.2 --- RELOCATABLE ARCHITECTURE CASE STUDIE
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