131,233 research outputs found
IV. Psychologie appliquée : Par D. Berger, J. Cambon, S. Larcebeau
No full textBerger D., Cambon J., Larcebeau S. IV. Psychologie appliquée : Par D. Berger, J. Cambon, S. Larcebeau. In: L'année psychologique. 1957 vol. 57, n°1. pp. 300-303
The effect of compressibility on turbulent shear flow: a rapid-distortion-theory and direct-numerical-simulation study
No full textThe influence of compressibility upon the structure of homogeneous sheared turbulence is investigated. For the case in which the rate of shear is much larger than the rate of nonlinear interactions of the turbulence, the modification caused by compressibility to the amplification of turbulent kinetic energy by the mean shear is found to be primarily reflected in pressure-strain correlations and related to the anisotropy of the Reynolds stress tensor, rather than in explicit dilatational terms such as the pressure-dilatation correlation or the dilatational dissipation. The central role of a 'distortion Mach number' Md = Sℓ/a, where S is the mean strain or shear rate, ℓ a length scale of energetic structures, and a the sonic speed, is demonstrated. This parameter has appeared in previous rapid-distortion-theory (RDT) and direct-numerical-simulation (DNS) studies; in order to generalize the previous analyses, the quasi-isentropic compressible RDT equations are numerically solved for homogeneous turbulence subjected to spherical (isotropic) compression, one-dimensional (axial) compression and pure shear. For pure-shear flow at finite Mach number, the RDT results display qualitatively different behaviour at large and small non-dimensional times St: when St < 4 the kinetic energy growth rate increases as the distortion Mach number increases; for St > 4 the inverse occurs, which is consistent with the frequently observed tendency for compressibility to stabilize a turbulent shear flow. This 'crossover' behaviour, which is not present when the mean distortion is irrotational, is due to the kinematic distortion and the mean-shear-induced linear coupling of the dilatational and solenoidal fields. The relevance of the RDT is illustrated by comparison to the recent DNS results of Sarkar (1995), as well as new DNS data, both of which were obtained by solving the fully nonlinear compressible Navier-Stokes equations. The linear quasi-isentropic RDT and nonlinear non-isentropic DNS solutions are in good general agreement over a wide range of parameters; this agreement gives new insight into the stabilizing and destabilizing effects of compressibility, and reveals the extent to which linear processes are responsible for modifying the structure of compressible turbulence
Petit traité de théologie musulmane
No full textpar Abou Abdallah Mohammed Ben Mohammed Ben Youssef Senoussi (Senoussia). Texte arabe publié par ordre de Jules Cambon; avec une traduction française et des notes par J.-D. LuianiMatn as-sanūsīyaText in franz. u. in arab. Schr., arab
Cambon (Pierre-Joseph)
No full textNé à Montpellier (Hérault) le 10 juin 1756Décédé à Saint-Josse-ten-Noode (faubourg de Bruxelles) le 15 février 1820Fils de Joseph-Gaspard CAMBON (1727-1814) et de Marguerite FAJON (1730-1812)Président du « Comité des assignats, des monnaies, de l’ordinaire et de l’extraordinaire des Finances » de la Convention, jusqu’en avril 1795[Ministre des Finances sans le titre, de janvier 1793 à avril 1795] © Lithographie par Bonneville, BN, N2D 102 897. I. LA FAMILLE FAMILLE PATERNELLE CAMBON naquit d..
VII. Psychologie appliquée
No full textBerger D., Cambon J., Larcebeau S, Lévy-Leboyer Claude, Pétin Monique. VII. Psychologie appliquée. In: L'année psychologique. 1958 vol. 58, n°1. pp. 274-280
On the universality of power laws for tokamak plasma predictions
No full textSignificant deviations from well established power laws for the thermal energy confinement time, obtained from extensive databases analysis as the IPB98(y, 2), have been recently reported in dedicated power scans. In order to illuminate the adequacy, validity and universality of power laws as tools for predicting plasma performance, a simplified analysis has been carried out in the framework of a minimal modeling for heat transport which is, however, able to account for the interplay between turbulence and collinear effects with the input power known to play a role in experiments with significant deviations from such power laws. Whereas at low powers, the usual scaling laws are recovered with little influence of other plasma parameters, resulting in a robust power low exponent, at high power it is shown how the exponents obtained are extremely sensitive to the heating deposition, the q-profile or even the sampling or the number of points considered due to highly non-linear behavior of the heat transport. In particular circumstances, even a minimum of the thermal energy confinement time with the input power can be obtained, which means that the approach of the energy confinement time as a power law might be intrinsically invalid. Therefore plasma predictions with a power law approximation with a constant exponent obtained from a regression of a broad range of powers and other plasma parameters which can non-linearly affect and suppress heat transport, can lead to misleading results suggesting that this approach should be taken cautiously and its results continuously compared with modeling which can properly capture the underline physics, as gyrokinetic simulations
II. Psychologie appliquée. Psychologie sociale.
No full textBerger D., Cambon J., Ledoux V., Leplat Jacques, de Montmollin Germaine, Valin E. II. Psychologie appliquée. Psychologie sociale.. In: L'année psychologique. 1955 vol. 55, n°2. pp. 522-532
Note préliminaire sur l’emploi d’un vaccin inactivé contre la peste équine
No full textBourdin P., Monnier-Cambon J. Note préliminaire sur l’emploi du vaccin inactivé contre la peste équine(avec la collaboration technique de A. Vautier et de Diallo Mamadou Saliou) . In: Bulletin de l'Académie Vétérinaire de France tome 120 n°4, 1967. pp. 187-191
Lettres de Cambon et autres envoyés de la ville de Montpellier de 1789 à 1792, publiées par D. Grand et L. de la Pijardière.
No full textGuiffrey Jules. Lettres de Cambon et autres envoyés de la ville de Montpellier de 1789 à 1792, publiées par D. Grand et L. de la Pijardière.. In: Bibliothèque de l'école des chartes. 1889, tome 50. pp. 610-611
Lettres de Cambon et autres envoyés de la ville de Montpellier de 1789 à 1792, publiées par D. Grand et L. de la Pijardière.
No full textGuiffrey Jules. Lettres de Cambon et autres envoyés de la ville de Montpellier de 1789 à 1792, publiées par D. Grand et L. de la Pijardière.. In: Bibliothèque de l'école des chartes. 1889, tome 50. pp. 610-611
- …
