Sur la science by Simone Weil

By Simone Weil

Présentation du livre
(Quatrième de couverture)

Ce preferable quantity d'essais, lettres et fragments, inédits de Simone Weil, est tout entier orienté vers les mathématiques et l. a. technology.

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F1 (ne) e = 9o(z) . fz(ne) a and e are the products of two (10) The above assumption leads to the following relation on which some comments have to be done: 1 dv 1 d9o] ~ _ -2ane + ne [ ~. dZ- So". dZ (11) dz - 1 + ne[l. de _ _ 1_. d(a/v)J e dne (a/V) dile 1. Terms of the numerator are only depending on the variations of v and e as functions of z. Otherwise, they are depending on either the neutrals density n0 or the radial dimensions of the plasma column. Note that the sign of the numerator can change, particularly if the collision frequency v is rapidly varying along the column.

Moisan and J. , Elsevier, Amsterdam (1992). 31. J. Margot, M. Moisan and A. Ricard, Optical radiation efficiency of surface-wave-produced plasmas as compared to DC positive columns, Appl. Spectrosc. 45:260 (1991). 32. L. Michau and M. Hamelin, Design and characteristics of SIPPI, an ion source for a long-distance SIMS analysis of the Phobos surface, Rev. Sci. Instrum. 59:2409 (1988). 24 WAVE PROPAGATION IN BOUNDED PLASMAS. Caroline Boisse-Laporte Laboratoire de Physique des Gaz et des Plasmas Bat 212, Universite Paris-Sud 91405 Orsay Cedex France INTRODUCTION The propagation of microwave in bounded plasmas has been extensively studied since the 50's.

Moisan and A. Ricard, A new microwave plasma at atmospheric pressure, Spectrochim. Acta 33B:l (1979). 20. G. Loncar, J. Musil and L. Bardos, Present status of thin oxyde films creation in a microwave plasma, Czech. J. Phys. B30:688 (1980). 21. D. Henry, Y. Hajlaoui, Y. Arnal, R. Pantel and M. Moisan, An efficient ion source using a surface wave launcher, Proc. Conf. on surface waves in plasmas, p. 292, I. , Sofia University (1983). 22. D. Beauchemin, J. Hubert and M. Moisan, Spectral and noise characteristics of xenon microwave induced lamp, Appl.

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