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Magnetická oblaka a jejich expanze
Lynnyk, A. ; Vandas, Marek
Magnetic clouds for the years 1995-1998 are analyzed using a model of a force-free cylindrical flux rope which may include cloud expansion. Clearly pronounced expansion was found in 80% cases. It was found that including the expansion makes comparison between model and experimental data better in 75% of these cases.
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Kinetický model kvasiperiodických oscilací plynných prstenců
Hadrava, Petr
In context of 3:2 resonant quasiperiodic oscillations, a method of "1+1/2 -dimensional" non-ideal gas dynamics is used to model axisymmetric oscillations of an orbiting ring. It is shown that the characteristic frequencies of the oscillations are influenced by the degree of freedom in the inner shear of the ring and by the rate of relaxation.
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