TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

In evaluating the performance of an antenna as a radiating system one considers only the field at a large distance, where the induction field can be neglected. The antenna is then treated as an effective point source, radiating power that, per unit solid angle, is a function of direction only. The directive properties of an antenna are most conveniently expressed in terms of the "gain function"... The gain function is defined as the ratio of the power radiated in a given direction per unit solid angle to the average power radiated per unit solid angle... The maximum value of the gain function is called the "gain"... The gain of an antenna is the greatest factor by which the power transmitted in a given direction can be increased by using that antenna instead of an isotropic radiator.  2, fiche 1, Anglais, - gain%20function

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Variation du gain d'une antenne de réception en fonction de la direction de réception.  3, fiche 1, Français, - fonction%20de%20gain

Fiche 1,  Justifications,  Espagnol

Record number: 1, Textual support number: 1 DEF

Función que representa la ganancia isótropa de una antena en las diferentes direcciones del espacio.  1, fiche 1, Espagnol, - funci%C3%B3n%20ganancia

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

The group started an experiment at the ISR Split-Field Magnet, which was a facility provided by CERN, consisting of a large magnet equipped with a large number of multiwire proportional chambers covering a large fraction of the solid angle. The spectrometer, which had been used in the previous experiment, was moved to the Split-Field Magnet as a complement to make particle identification at large angles possible.  2, fiche 2, Anglais, - split%20field%20magnet

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

There has been, of late, a surge of interest in methods of processing transverse axial tomography data. The alternative method of sectioning provided by longitudinal tomography may, in practice be more appropriate in visualising "long" or "flat" organs such as the lungs, skeleton, thyroid, spleen and kidneys where an A-P type of view is more recognisable. Instrumentation used for longitudinal tomography includes the tomoscanner type of device developed by ANGER(1968) which provides details of a number of planes simultaneously and the conventional scanners using a large solid angle highly focussed collimator(...)  2, fiche 3, Anglais, - longitudinal%20tomography

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

(...) de nombreuses solutions ont été élaborées pour obtenir in vivo des images de coupes du corps: c'est la tomographie. Les premiers dispositifs permettaient seulement d'obtenir des coupes dans des plans parallèles au plan de projection ou tomographie longitudinale.  1, fiche 3, Français, - tomographie%20longitudinale

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 OBS

CRDA  1, fiche 4, Anglais, - large%20solid%20angle

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 OBS

CRDA technique 127cp/2.75  1, fiche 4, Français, - angle%20solide%20tr%C3%A8s%20ouvert

Fiche 4,  Justifications,  Espagnol