TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

THERMAL COLUMN [6 records]

Record 1 2020-01-08

English

Subject field(s)
  • Fires and Explosions
DEF

An updraft of heated air, fire gases, and smoke directly above the involved fire area.

CONT

Elevated streams are sometimes used to extinguish sparks and flying embers from a burning building or to cool the thermal column of heat over a building...

French

Domaine(s)
  • Feux et explosions
DEF

Courant ascendant d'air chaud, de gaz de combustion et de fumée directement au-dessus de la zone de l'incendie.

CONT

Des jets de lance surélevés sont parfois utilisés pour éteindre les étincelles et les tisons ardents provenant d'un bâtiment en feu ou pour refroidir la colonne thermique au-dessus d'un bâtiment […]

Spanish

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Record 2 2015-04-29

English

Subject field(s)
  • Nuclear Fission Reactors
DEF

A large body of moderator, adjacent to or inside a reactor to provide thermal neutrons for experiments.

OBS

thermal column : term and definition standardized by ISO.

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Grand volume de modérateur adjacent ou situé à l'intérieur d'un réacteur, destiné à produire des neutrons thermiques pour des expériences.

OBS

colonne thermique : terme et définition normalisé par l'ISO.

Spanish

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Record 3 2011-01-06

English

Subject field(s)
  • Analytical Chemistry
CONT

In contrast to the automatic recording instruments monitoring volume increases at constant pressure, van de Craats maintained the volume constant and recorded automatically the pressure changes by means of an electromagnetic manometer devised by Kinkel.... In addition to van de Craats’ work with pressure-sensing devices, Novák and Janák constructed a detector which represents the pneumatic analog of a Wheatstone bridge, employing the dynamic effects of pneumatic obstructions such as capillaries and constrictions for determining component fractions emerging from the gas chromatographic column. Requiring no electrical power yet having an accuracy comparable to high precision thermal conductivity cells, it expresses the pressure differential, either differentially or integrally, caused by the eluted component as a diagonal from zero. Furthermore, the substance analyzed is never in contact with the detector.

French

Domaine(s)
  • Chimie analytique

Spanish

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Record 4 2000-02-25

English

Subject field(s)
  • Meteorology
DEF

The spatial displacement of an area of high pressure caused by the local redistribution of mass in the atmosphere.

OBS

This redistribution is accomplished by the three-dimensional motion associated with the atmospheric circulation. The trajectory of the centre is often altered by local heating or cooling of the air column, usually as a result of thermal fluxes at the surface. These fluxes change the temperature of the air near the surface resulting in density changes which modify surface pressures.

French

Domaine(s)
  • Météorologie
DEF

Déplacement spatial d'une aire de haute pression causé par la redistribution locale de la masse de l'atmosphère. Cette redistribution est accomplie par le mouvement tridimensionnel associé à la circulation atmosphérique.

OBS

La trajectoire du centre est souvent modifiée par le réchauffement ou refroidissement local de la colonne d'air dû aux flux thermiques de surface. Ces variations de la température de l'air près de la surface affectent la densité et de ce fait modifient les pressions de surface.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Desplazamiento espacial de una zona de alta presión causado por la redistribución local de la masa en la atmósfera. Esa redistribución se realiza por el movimiento tridimensional asociado a la circulación atmosférica.

OBS

La trayectoria del centro se ve a menudo alterada por el calentamiento o el enfriamiento locales de la columna de aire, habitualmente como resultado de los flujos térmicos de superficie. Esas variaciones de la temperatura del aire cerca de la superficie afectan a la densidad y por ello modifican las presiones superficiales.

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Record 5 1999-04-26

English

Subject field(s)
  • Analytical Chemistry
CONT

The problem of severe baseline drift associated with column bleed at higher temperatures during temperature programming operations was satisfactorily eliminated by Emery and Koerner, who developed a dual-column, programmed-temperature chromatograph, extending the upper usable temperature limits for column packings. This was accomplished by programming the temperature of two symmetrical columns, the effluent of the "dummy" column passing through the reference side of a four-filament, hot-wire thermal conductivity cell compensating for the "bleed" of analytical column.

PHR

Low-capacity analytical column.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 5

Record 6 1995-07-04

English

Subject field(s)
  • Meteorology
  • Atmospheric Physics
DEF

The spatial displacement of a centre of low pressure caused by the local redistribution of mass in the atmosphere. The trajectory of the centre is often altered by heating or cooling of the air column. This can result from thermal fluxes at the surface or latent heat transformations associated with cloud formation and precipitation. These processes change the temperature distribution in the air column, resulting in density changes which modify the surface pressures.

French

Domaine(s)
  • Météorologie
  • Physique de l'atmosphère
DEF

Déplacement spatial d'un centre de basse pression causé par la redistribution locale de la masse de l'atmosphère. La trajectoire du centre est souvent modifiée par le réchauffement ou le refroidissement de la colonne d'air, dû aux flux thermiques de surface ou aux transformations de la chaleur latente associées à la formation de nuages et de précipitation. Ces processus affectent la distribution de température de la colonne d'air et de ce fait modifient les pressions de surface.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Física de la atmósfera
DEF

Desplazamiento espacial de un centro de baja presión causado por la redistribución local de la masa en la atmósfera. La trayectoria del centro está a menudo modificada por el calentamiento o el enfriamiento de la columna de aire debidos a los flujos térmicos de superficie o a las transformaciones del calor latente asociadas a la formación de nubes y de precipitación. Esos procesos cambian la distribución de la temperatura en la columna de aire y por ello modifican las presiones superficiales.

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