学科筛选

  • 5. On the supraconductivity of zinc

  • 【来源】

    [外文期刊]

  • 【作者】

    W.H Keesom 

  • 【摘要】

    Some metals have been investigated to lower temperatures as to the question whether they become supraconductors. Zinc becomes supraconductive at 0.79°K. Cadmium and gold are not yet supraconductive at...

  • 9. On discontinuities in the energy and the specific heat

  • 【来源】

    [外文期刊]

  • 【作者】

    A. Bijl 

  • 【摘要】

    Summary The transition of a substance from one structure into another is considered as a process of association. Equilibrium conditions for an associating system are derived (II). It is shown that the...

  • 10. Note on the rotation of diatomic molecules

  • 【来源】

    [外文期刊]

  • 【作者】

    H. Casimir 

  • 【摘要】

    Summary It is shown, that in order to calculate the moment of inertia of a diaatomic molecule one must add the masses of the closed electron shells to the masses of the corresponding nuclei.

  • 13. Die Temperatur des Quecksilberbogens

  • 【来源】

    [外文期刊]

  • 【作者】

    W Elenbaas 

  • 【摘要】

    Zusammenfassung A discharge tube (inner diameter 20 mm) is filled with a known quantity of mercury, so that for an input of 43,8 Watt (A.C.) pro cm length, the pressure is just one atmosphere. This fo...

  • 14. Die quecksilber-hochdruckentladung

  • 【来源】

    [外文期刊]

  • 【作者】

    von W. Elenbaas 

  • 【摘要】

    Summary The mercury high pressure discharge can be described by assuming a temperature equilibrium between Hg-atoms, -ions and electrons. With the gastemperature, determined by a formerly described me...

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