## Proceedings of the International School of Physics "Enrico Fermi.", Volume 25N. Zanichelli, 1953 - Nuclear physics |

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Page 54

... equations are

equations for small motions about equilibrium are

principle is

... equations are

**derived**, second the equilibrium is discussed, third the linearizedequations for small motions about equilibrium are

**derived**, and finally an energyprinciple is

**derived**which is shown to give a necessary and sufficient condition ...Page 56

The first two fluid equations are

Fokker-Planck equations. The next moment involves the heat flow which may be

computed by the method of Chapman and Enskog. Similarly a more correct

Ohm's ...

The first two fluid equations are

**derived**by taking the first two moments of theFokker-Planck equations. The next moment involves the heat flow which may be

computed by the method of Chapman and Enskog. Similarly a more correct

Ohm's ...

Page 197

It is interesting to compare the kernel (4.8)

7.1) of ref. [4]. Both describe the nonlinear behaviour of plasma oscillations as a

wave-interaction process. The two formulas are not equivalent, and the difference

...

It is interesting to compare the kernel (4.8)

**derived**in this article with the kernel (7.1) of ref. [4]. Both describe the nonlinear behaviour of plasma oscillations as a

wave-interaction process. The two formulas are not equivalent, and the difference

...

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### Contents

LEZIONI | 1 |

carrier mass | 159 |

hydrodynamique au voisinage dun axe magnétique | 214 |

Copyright | |

2 other sections not shown

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### Common terms and phrases

adiabatic invariant amplitude approximation assumed Boltzmann equation boundary conditions boundary layer calculated cathode charge coefficient collision components consider const constant contraction corresponds courbe critère current density Debye length derived differential equations discharge dispersion relation distribution function dºr eigenvalue electric field electromagnetic waves electrostatic energy principle equations of motion equilibrium exp i(k exp ioctl exp ior experimental finite fluid theory frequency given Hence instability integral interaction ioctl ionized KRUSKAL l'axe magnétique lignes limit lowest order magnetic field Maxwell's equations negative ions nonlinear obtain parameter particle perturbation Phys plasma oscillations Plasma Physics Poisson's equation potential problem quantities radial region satisfied saturation current ſº solution solving stabilité stability surface temperature thermal tion values vanish variables vector velocity voisinage waves in plasmas zero zero-order