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

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Page 55

The theories are developed on generally parallel lines. The arguments for the

derivation of an

be ...

The theories are developed on generally parallel lines. The arguments for the

derivation of an

**energy principle**in each case are formally the same. When the**energy principles**are derived they will be compared for similar equilibria. It willbe ...

Page 64

Thus d) There exists an

quadratic in 3 such that stability can be reduced to examining the sign of 8 W (3,

3). 3W will turn out to be the variation in potential energy of the system.

Thus d) There exists an

**energy principle**for stability i.e. an expression 3 W/3, 3)quadratic in 3 such that stability can be reduced to examining the sign of 8 W (3,

3). 3W will turn out to be the variation in potential energy of the system.

Page 67

In this case the

that the energy has a physically intuitive significance. The first two terms

represent the variation of the magnetic energy and the last two of the plasma

energy.

In this case the

**energy principle**has the advantage. This is facilitated by the factthat the energy has a physically intuitive significance. The first two terms

represent the variation of the magnetic energy and the last two of the plasma

energy.

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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