TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

In permeation [or gel] chromatography, the molecular-mass limit above which the investigated sample molecules are unable to penetrate into the molecular sieve or gel pores; the molecules’ migration velocity is equal to that of the mobile phase.  2, fiche 1, Anglais, - exclusion%20limit

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

This correction largely accounts for the increase in migration velocity in the very small particle-size range. One consequence of the variation in migration velocity with particle size is that there will be a corresponding change in collection efficiency.  3, fiche 2, Anglais, - particle%2Dsize%20range

Record number: 2, Textual support number: 2 CONT

Several manual methods that collect particles for specific purposes have been developed; an example is the cascade impactor, which separates the sample into fractions for subsequent physical or chemical analysis. Also, a dichotomous sampler that collects particles in two particle-size ranges has been developed.  2, fiche 2, Anglais, - particle%2Dsize%20range

Record number: 2, Textual support number: 1 OBS

See also "particle size distribution".  4, fiche 2, Anglais, - particle%2Dsize%20range

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 CONT

Les dispositifs les plus utilisés qui permettent, à l'heure actuelle, d'accéder à une mesure de la concentration en nombre de tout ou partie du spectre granulométrique d'un aérosol sont basés sur les propriétés optiques des aérosols.  1, fiche 2, Français, - spectre%20granulom%C3%A9trique

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

The POLDER(Polarization and Directionality of the Earth's Reflectances) instrument will observe the polarization, directional and spectral characteristics of the solar light reflected by aerosols, clouds, oceans and land surfaces. POLDER is a push broom, wide field of view, multi-band imaging radiometer/polarimeter developed by CNES. Multi-angle viewing is achieved by the along-track migration at the spacecraft velocity of a quasi-square footprint intercepted by the total instantaneous 114-degree wide field of view. This footprint is partitioned into 242x274 elements of quasi-constant 7kmx6km resolution, imaged by a CCD matrix in the focal plane.  2, fiche 3, Anglais, - polarisation%20and%20directionality%20of%20the%20Earth%27s%20reflectances

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 OBS

Projet d'instrument français pour Adeos (Japon).  1, fiche 3, Français, - polarisation%20et%20directionnalit%C3%A9%20des%20r%C3%A9flectances

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 CONT

The migration velocity is adjusted by the Cunningham correction factor for particle sizes below 1 [micron]. This correction largely accounts for the increase in migration velocity in the very small particle-size range. One consequence of the variation in migration velocity with particle size is that there will be a corresponding change in collection efficiency.  1, fiche 4, Anglais, - Cunningham%20correction%20factor

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 CONT

Pour les particules de très faibles dimensions, la loi de Stokes n'est applicable que moyennant un facteur de correction tenant compte de leur chute plus rapide (facteur de Cunningham); les particules inférieures à 0,1 [micromètre] sont soumises au mouvement brownien.  1, fiche 4, Français, - facteur%20de%20Cunningham

Fiche 4,  Justifications,  Espagnol