摘要:

AbstractA detailed analysis of an integral transport theory of electrons and ions in a gas in a field is presented. Different procedures allowing, in principle, the rigorous calculation of velocity distribution, drift velocity and diffusion coefficients are discussed. A derivation of a general expression for the transition probability, from a given velocity to another, which holds for any kind of collision, is given. Some questions linked to the convergence of iterative procedures of solution of some basic integral equations are also treated.

ISSN:0005-8025    

DOI:10.1002/ctpp.19800200302

出版商:WILEY‐VCH Verlag    

年代:1980

数据来源: WILEY

摘要:

AbstractThe influence of drifting electrons on the properties of ion acoustic solitons is discussed. The range of Mach numbers within which solitary waves are possible and the dependence of soliton velocity on amplitude are given. It is shown that solitary waves exist for Mach numbersM<1 in the presence of drifting electrons.

ISSN:0005-8025    

DOI:10.1002/ctpp.19800200303

出版商:WILEY‐VCH Verlag    

年代:1980

数据来源: WILEY

摘要:

AbstractThe nonstationary resonant reflectivity of a density profile is studied which consists of two homogeneous overcritical layers, separated by a vacuum region whose width increases linearly in time. Analytical expressions are derived for the time dependence of both the reflexion coefficient and the cavity field in the case of normal incidence. If the configuration passes through a structure resonance, where the eigenfrequency of the density cavity coincides with the frequency of the external wave, the cavity field is strongly enhanced. The temporary formation and the subsequent decay of this resonant field leads to oscillations of the reflexion coefficient. In the case of a loss‐less plasma it may reach the extreme values |R| max2= 0 |R| max2≈ 3 and the moving plasma configuration temporarily acts as an energy storage (|R|2<1) or an emitter (

ISSN:0005-8025    

DOI:10.1002/ctpp.19800200304

出版商:WILEY‐VCH Verlag    

年代:1980

数据来源: WILEY

摘要:

AbstractThe coupled mode equations and coupling coefficients for the resonant nonlinear interaction of three extra‐ordinary waves in a hot magnetized plasma are derived by Whitham's method of averaged Lagrangian. The wave vectors of the three waves are taken as noncollinear and perpendicular to the external uniform magnetic field. Of the three waves one is of high frequency mode and the other two are of low frequency mod

ISSN:0005-8025    

DOI:10.1002/ctpp.19800200305

出版商:WILEY‐VCH Verlag    

年代:1980

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19800200301

出版商:WILEY‐VCH Verlag    

年代:1980

数据来源: WILEY