The helicoid multi-groove frictional pump as a direct compressor in the atmosphere under re-examination of the coefficient of the internal viscosity

Author: Valamontes S.E.   Panos C.N.   Valamontes E.S.  

Publisher: Elsevier

ISSN: 0042-207X

Source: Vacuum, Vol.53, Iss.3, 1999-06, pp. : 421-425

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Abstract