Volume 27 Issue 4 • April 1990

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Displaying Results 1 - 6 of 6
  • Competing in a global economy

    Publication Year: 1990, Page(s):20 - 24
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    The approaches to global competition adopted by Japan, West Germany, and to the US are examined. In Japan several government institutions assist in developing a strategic vision in science and technology. Foremost is Japan's Council for Science and Technology, which promotes a comprehensive national policy. The Science and Technology Agency (STA), consuming about a quarter of Government R&D, f... View full abstract»

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  • Gallium arsenide finds a new niche

    Publication Year: 1990, Page(s):25 - 28
    Cited by:  Papers (9)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (511 KB)

    The use of a very-large-scale integrated GaAs circuits for applications where high speed at room temperatures is needed, such as in computers or telecommunications, is examined. The advantages and disadvantages of a logic family called direct-coupled FET logic (DCFL) which couples the speed of GaAs with a significantly lower power dissipation than any other alternative are discussed. Material, fab... View full abstract»

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  • A digital prescription for X-ray overload

    Publication Year: 1990, Page(s):33 - 36
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (506 KB)

    The potential of picture-archiving and communication systems (PACs), a technology for the transmission and storage of diagnostic images, is examined. PACs, which accept pictures or images, with associated test, in digital form and then distributes them over a network, offer a means of dealing with the explosive growth of information generated by radiology and other imaging modalities. The technolo... View full abstract»

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  • Protecting computer systems against power transients

    Publication Year: 1990, Page(s):37 - 40
    Cited by:  Papers (12)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (434 KB)

    The sources of electrical transients, broadly interpreted as occurrences of any disturbance, either on the power line or the computer system's data line, are reviewed. Common transients are overvoltages due to lightning strikes, transients caused by switching sequences in the power system, and undervoltages which could be caused by a nearby start-up of heavy loads or by distant faults. The impact ... View full abstract»

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  • 'Functional abstraction' anticipates timing glitches

    Publication Year: 1990, Page(s):41 - 42
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (201 KB)

    The use of an algebraic alternative simulation called functional abstraction to determine whether processing variations will affect a chip's timing is discussed. Functional abstraction involves constructing a functional model for a digital IC design from its structural model, or schematic. It allows chip manufacturing sensitivities to be identified more quickly and accurately than with simulation.... View full abstract»

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  • Biomechanically engineered athletes

    Publication Year: 1990, Page(s):43 - 44
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    The rapidly expanding application of biomechanics to athletic performance is discussed. Automatic digitizing systems that use video cameras connected to personal computers or workstations can capture simple motion in real time, allowing the performance of individual athletes to be analyzed. Several commercial systems are described. Biomechanists also use video movement analysis to gather data prev... View full abstract»

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