Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 49, Issue 4
Displaying 1-2 of 2 articles from this issue
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  • Survey of Supercomputers
    Yukihiko KARAKI
    1983 Volume 49 Issue 4 Pages 319-338
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.49.319
    JOURNAL FREE ACCESS
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    The strong request of more speed-up of CPU and larger-scale capacity of memory exists among scientists, engineers and others. In response to this request, the announcements of home-made supercomputers (Fujitsu in July and Hitachi in August) succeeded last year. This movement has evoked a large echo in USA. The world situation on the very high-speed scientific computers is becoming active. In Japan, scientific calculation's field enters into the age of the supercomputer in the coming autumn.
    In this article, we try to survey the movement and characteristics of the supercomputers briefly.
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  • THERMO-ELECTRIC CURRENT DRIVE USING LOCAL ELECTRON COOLING PRODUCED BY NEUTRAL BEAM INJECTION
    Tihiro Ohkawa
    1983 Volume 49 Issue 4 Pages 339-347
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.49.339
    JOURNAL FREE ACCESS
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    A new method of current drive utilizing thermo-electric effect is proposed. An electron temperature gradient is created by trapping cold electrons brought into the plasma by neutral beams. The combined effects of the density gradient produced by sloshing ions and the electron temperature gradient lead to the thermo-electric current drive. The beam power needed for heating is sufficient to drive and maintain the ohmic current.
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