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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 1010-1011 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A new type of cathode combining the features of the impregnated W cathode and the moulded cathode has recently been developed. The cathode is made by preparing a mixture of nickel powder and barium-strontium carbonate powder. A small percentage of an appropriate reducing agent is added to the ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 200-201 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is sufficient for our purpose to write the dynamical laws in the form with Tik = (Jt0c2 . Ui . uk ; 8* = PO . wk, File being the electromagnetic field tensor, M.O and p0 the rest densities of mass and charge distributions and uk and w* the velocity four-vectors of mass and charge ...
    Type of Medium: Electronic Resource
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