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DISSOLVED GAS [45 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2026-02-25

English

Subject field(s)
  • Equipment and Tools (Water Supply)
  • Wastewater Treatment
  • Collaboration with Health Canada
CONT

Cascade aerators are commonly used in water treatment. Cascade aerators introduce air into a flowing stream of water, to oxidize iron and reduce dissolved gases. It aids in the removal of dissolved gas, iron, and manganese from groundwater, particularly when these metal concentrations are high.

CONT

With cascade aerators, aeration is accomplished by natural draft units that mix cascading water with air that is naturally inducted into the water flow. Cascade water is pumped to the top of the aerator, and cascades over a series of trays.

French

Domaine(s)
  • Équipement et outillage (Alimentation en eau)
  • Traitement des eaux usées
  • Collaboration avec Santé Canada
OBS

Dispositif utilisé dans les stations d'épuration pour augmenter l'oxygène dissous.

Spanish

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Record 2 2025-03-11

English

Subject field(s)
  • Non-Surgical Treatment
  • Chemistry
DEF

An ammonia-based preparation used as a stimulant by athletes or to revive a person who fainted.

OBS

Historically, smelling salts contained ammonium carbonate and perfume; modern preparations typically consist of ammonia dissolved in water and ethanol, sometimes infused with a scented oil, such as eucalyptus. The salts release ammonia gas that irritates the nose and lung membranes, triggering an inhalation reflex, which prompts the muscles that control breathing to work faster and helps restore oxygen flow to the brain and body.

Key term(s)
  • smelling-salts

French

Domaine(s)
  • Traitements non chirurgicaux
  • Chimie
DEF

Préparation à base d'ammoniac utilisée comme stimulant par les athlètes ou pour réanimer une personne évanouie.

OBS

Par le passé, les sels contenaient du carbonate d'ammonium. Les sels modernes sont plutôt généralement à base d'ammoniac.

OBS

sels d'ammonium; sels d'ammoniac : Bien que ces désignations soient parfois utilisées pour faire référence aux sels en général, les désignations «sel d'ammonium» et «sel d'ammoniac» désignent des types de composés chimiques précis.

Spanish

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Record 3 2022-06-29

English

Subject field(s)
  • Compressed and Liquefied Gas (Petroleum)
CONT

Any product, material or substance contained under pressure, including compressed gas, dissolved gas or gas liquefied by compression or refrigeration, that has any of the following characteristics... :(a) a critical temperature of less than 50 °C... :(b) an absolute vapour pressure greater than 294 kilopascals(2. 90 atmospheres) at 50 °C... ;(c) an absolute pressure in the cylinder or other pressure vessel in which it is packaged greater than 275 kilopascals... [shall be included in Class A of the hazardous materials classification].

French

Domaine(s)
  • Gaz de pétrole comprimés et liquéfiés
OBS

Source : Loi sur les produits dangereux. Réglementation concernant les produits contrôlés.

Spanish

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Record 4 2022-06-29

English

Subject field(s)
  • Compressed and Liquefied Gas (Petroleum)
CONT

Any product, material or substance contained under pressure, including compressed gas, dissolved gas or gas liquefied by compression or refrigeration, that has any of the following characteristics... :(a) a critical temperature of less than 50 °C... ;(b) an absolute vapour pressure greater than 294 kilopascals(2. 90 atmospheres) at 50 °C... ;(c) an absolute pressure in the cylinder or other pressure vessel in which it is packaged greater than 275 kilopascals... [shall be included in Class A of the hazardous materials classification].

French

Domaine(s)
  • Gaz de pétrole comprimés et liquéfiés
OBS

Source : Loi sur les produits dangereux. Réglementation concernant les produits contrôlés.

Spanish

Save record 4

Record 5 2017-06-12

English

Subject field(s)
  • Petroleum Technology - Equipment
  • Oil Refining
DEF

A tower or column which causes contact between a rising gas and a falling liquid so that part of the gas may be dissolved in the liquid.

OBS

absorption tower: term standardized by Environment Canada and the Translation Bureau for use in the National Inventory Report.

French

Domaine(s)
  • Appareillage (Technologie pétrolière)
  • Raffinage du pétrole
DEF

Appareil dans lequel l'absorption est réalisée en faisant circuler le gaz à traiter à contre-courant du solvant.

OBS

tour d'absorption : terme normalisé par Environnement Canada et le Bureau de la traduction dans le cadre du Rapport d'inventaire national.

Spanish

Campo(s) temático(s)
  • Equipo (Tecnología petrolera)
  • Refinación del petróleo
DEF

Torre o columna construida de tal manera que provee el contacto entre el gas ascendente, y el absorbente en descenso.

Save record 5

Record 6 2016-02-18

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Transformers
DEF

The study of the gasses present in the oil of a transformer in order to detect potential defects in the transformer.

CONT

The solubilities of the fault gases in mineral oil as well as their temperature dependence are also important factors for consideration in fault gas analyses.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Transformateurs
DEF

Méthode diagnostic des transformateurs électriques qui consiste en l'étude des gaz qui se trouvent dans l'huile de ces transformateurs, afin de déceler les défauts de ceux-ci.

CONT

Analyse des gaz dissous (AGD) : chaque type de défaut génère un mélange unique de gaz dans une quantité spécifique. En éliminant les gaz de l’échantillon et en les analysant, nous pouvons déterminer le type et la gravité du défaut interne du transformateur.

Spanish

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Record 7 2015-10-14

English

Subject field(s)
  • Hydrology and Hydrography
  • Petrography
DEF

... the physical flow of a fluid, usually water and/or gas and dissolved components(solute) either through interconnected pore spaces or along open fractures.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Pétrographie
DEF

Processus par lequel les contaminants dissous sont transportés par le mouvement des eaux souterraines, compte tenu de la vélocité linéaire moyenne de ces dernières.

Spanish

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Record 8 2015-02-17

English

Subject field(s)
  • Petroleum Deposits
DEF

A layer of gas on top of oil in an underground structure or reservoir.

CONT

When gas alone is used as the injected fluid, it is usually put into the top of the reservoir where gas normally collects to form a gas cap.

CONT

Gas not dissolved in oil as a result of high pressure will collect in the highest part of the reservoir to form a gas cap with the oil below it.

CONT

Gas (being the lightest) occupies the upper part of the reservoir rocks, water occupies the lower portion, and oil occupies the intermediate section. In addition to occurring as a gas cap or as a solution gas, gas may exist as an accumulation independent of the oil; when this holds true, the reservoir is called a gas reservoir.

French

Domaine(s)
  • Gisements pétrolifères
DEF

Dans un gisement, gaz déjà séparé du pétrole et le plus souvent rassemblé au voisinage du sommet de la structure.

CONT

Le gisement peut [...] être surmonté par une poche de gaz (gas-cap) dont la capacité d'expansion est beaucoup plus grande que celle des liquides. Enfin, le gaz initialement dissous dans l'huile du gisement peut se dégager, sous l'effet de l'abaissement de pression, et former un gas-cap dans un gisement qui initialement n'en comportait pas.

Spanish

Campo(s) temático(s)
  • Yacimientos petrolíferos
CONT

En un campo que contiene gas y aceite, parte del gas se almacenará a menudo en la parte superior del yacimiento en un depósito único conocido como casquete de gas.

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Record 9 2014-03-28

English

Subject field(s)
  • Natural Gas and Derivatives

French

Domaine(s)
  • Gaz naturel et dérivés

Spanish

Save record 9

Record 10 2014-03-28

English

Subject field(s)
  • Commercial Utilization (Oil and Natural Gas)
  • Economic Geology

French

Domaine(s)
  • Exploitation commerciale (Pétrole et gaz naturel)
  • Géologie économique

Spanish

Save record 10

Record 11 2012-06-05

English

Subject field(s)
  • Crop Protection
  • Agricultural Chemicals
  • Cultural Practices (Agriculture)
OBS

Fog is produced when aerosol droplets, having a diameter of less than 15 mm, fill a volume of air to such an extent that visibility is reduced.... In thermal fogging machines, pesticide, usually dissolved in an oil of a suitable flashpoint, is injected into a hot gas and vaporised.

Key term(s)
  • thermally generated fog

French

Domaine(s)
  • Protection des végétaux
  • Agents chimiques (Agriculture)
  • Soin des cultures (Agriculture)
OBS

Dans la plupart des cas, la nébulisation est générée de façon thermique, pour application dans des locaux fermés. Le diamètre des gouttelettes obtenues ne dépasse pas 15 microns.

OBS

nébulisation : terme normalisé par l'AFNOR.

Key term(s)
  • pulvérisation thermique
  • thermonébulisation

Spanish

Campo(s) temático(s)
  • Protección de las plantas
  • Agentes químicos (Agricultura)
  • Cuidado de los cultivos (Agricultura)
Save record 11

Record 12 2011-11-24

English

Subject field(s)
  • Electrolytical Processes (Metallurgy)
  • Electrochemistry
CONT

Electrolysis is the process by which ionic substances are broken down into simpler substances using electricity. During electrolysis, metals and gases may form at the electrodes. …To understand electrolysis, you need to know what an ionic substance is. Ionic substances form when a metal reacts with a non-metal. They contain charged particles called ions. For example, sodium chloride forms when sodium reacts with chlorine. It contains positively charged sodium ions and negatively charged chloride ions. Ionic substances can be broken down by electricity. … For electrolysis to work, the ions must be free to move. Ions are free to move when an ionic substance is dissolved in water or molten(melted). For example, if electricity is passed through copper chloride solution, the copper chloride is broken down to form copper metal and chlorine gas. … Here is what happens during electrolysis : Positively charged ions move to the negative electrode during electrolysis. They receive electrons and are reduced. Negatively charged ions move to the positive electrode during electrolysis. They lose electrons and are oxidised. … So the electrolysis of copper chloride solution produces copper at the negative electrode. But the electrolysis of sodium chloride solution produces hydrogen.

Key term(s)
  • copper chloride electrolysis
  • electrolysis of a copper-chloride solution

French

Domaine(s)
  • Électrolyse (Métallurgie)
  • Électrochimie
CONT

L'électrolyse du chlorure de cuivre a été tentée avec plus ou moins de succès, par différents groupes. [...] Ils réalisent l'électrolyse au sein d'un électrolyte constitué par un sel en fusion ou une solution aqueuse du sel, utilisant un diaphragme pour séparer l'anolyte et le catholyte

CONT

Électrolyse du chlorure de cuivre II. Une solution de chlorure de cuivre II est électrolysée avec des électrodes de graphite.

Spanish

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Record 13 2011-06-20

English

Subject field(s)
  • Foundry Practice
DEF

Removing dissolved gases and entrapped oxides by passing chlorine gas through molten metal such as aluminum and magnesium.

French

Domaine(s)
  • Fonderie
DEF

Passage de chlore gazeux à travers un bain d'alliage à base d'aluminium ou de magnésium pour le débarrasser des gaz dissous et des oxydes.

Spanish

Campo(s) temático(s)
  • Fundición
Save record 13

Record 14 2011-06-08

English

Subject field(s)
  • Chemical Elements and Compounds
  • Biochemistry
  • Pollutants
  • Atmospheric Physics
Universal entry(ies)
CO2
formula, see observation
124-38-9
CAS number
DEF

A heavy colorless gas CO2 that does not support combustion, that dissolves in water to form carbonic acid, that is formed especially by the action of acids on carbonates, by the fermentation of liquors, and by the combustion and decomposition of organic substances (as in animal respiration, in the decay of animal and vegetable matter, and in the explosion of firedamp in mines) that is absorbed from the air by plants in the first step in photosynthesis, and that is used in the gaseous and liquefied forms chiefly in the carbonation of beverages, in fire fighting, in therapeutical work, in mining operations, in the chemical industry, and as a source of power (as in spray painting and inflating life rafts) and in the solidified form as dry ice ...

OBS

Carbon dioxide is naturally present in air to the extent of 0. 03 percent by volume and 0. 05 percent by weight, in rainwater at 2 to 6 ppm, and in most water supplies from zero to 50 ppm. Carbon dioxide is the gas in carbonated beverages. Dissolved in water, it can form carbonic acid H2CO3.

OBS

Carbon dioxide plays an important role in the greenhouse effect; in the field of global warming, the terms "carbon dioxide" and "carbon" are very often used interchangeably.

OBS

Chemical formula: CO2

French

Domaine(s)
  • Éléments et composés chimiques
  • Biochimie
  • Agents de pollution
  • Physique de l'atmosphère
Entrée(s) universelle(s)
CO2
formula, see observation
124-38-9
CAS number
CONT

Des composés oxygénés du carbone, nous retiendrons le dioxyde de carbone ou «gaz carbonique» [...] Le dioxyde de carbone CO2 est assez abondant dans la nature (atmosphère, poches de gaz souterraines, eaux minérales gazeuses), où il joue un rôle capital pour les êtres vivants, par le mécanisme de l'assimilation chlorophyllienne. C'est aussi un sous-produit de nombreuses industries (fermentation alcoolique des sucres, fabrication de la chaux vive, des ciments, synthèse de l'ammoniac, etc.).

OBS

dioxyde de carbone : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).

OBS

gaz carbonique : Ancien nom pour dioxyde de carbone; peut être utilisé dans la langue courante, mais pas dans un texte technique rigoureux.

OBS

bioxyde de carbone : terme uniformisé par le Groupe de travail de terminologie du Génie et par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre; cependant, cette forme est vieillie et est maintenant totalement à proscrire.

OBS

anhydride carbonique : Ancien nom du dioxyde de carbone, dont l'usage est à proscrire.

OBS

gaz acide carbonique (ou gaz d'acide carbonique); acide carbonique gazeux : Calques de l'anglais «carbonic acid gas», formes incongrues à proscrire totalement.

OBS

Formule chimique : CO2

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Bioquímica
  • Agentes contaminantes
  • Física de la atmósfera
Entrada(s) universal(es)
CO2
formula, see observation
124-38-9
CAS number
CONT

Los especialistas señalaron la importancia de que los países industrializados se comprometan a cumplir las reducciones de emisiones de dióxido carbónico (CO2).

OBS

Producto que se utiliza como agente extintor de incendios.

OBS

Gas o líquido inodoro e incoloro, o bien sólido blanco. Incombustible. Soluble en agua, hidrocarburos y la mayoría de líquidos orgánicos.

OBS

Fórmula química: CO2

Save record 14

Record 15 2011-05-31

English

Subject field(s)
  • Analytical Chemistry
DEF

The process of one material(absorbent) being retained by another(absorbate) ;this may be the physical solution of a gas, liquid, or solid in a liquid, attachment of molecules of a gas, vapour, liquid, or dissolved substance to a solid surface by physical forces, etc.

OBS

Penetration in bulk of one material throughout a second material. ... It is usually associated with the formation of fairly strong chemical bonds and is rarely reversible at ambient temperatures. Dissolution of gases in liquids frequently involves absorption forces. The main difference between this and adsorption is that the former involves fairly uniform penetration of the absorbent matrix, whilst the latter occurs at the surface, and the forces involved in adsorption are very much less than the chemical forces of the absorption process.

French

Domaine(s)
  • Chimie analytique
DEF

Transfert d'un composant d'une phase à une autre.

OBS

Dans les sciences physiques, le terme absorption est utilisé chaque fois qu'un système hétérogène évolue de telle manière que toutes les phases disparaissent sauf une, qui capte les autres.

PHR

Absorption constante, maximum, visible, ultra-violet, UV.

Spanish

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Record 16 2011-01-26

English

Subject field(s)
  • Biochemistry
  • Environment
DEF

The flow of carbon in living matter in which carbon dioxide is fixed by photosynthesis in green plants from organic nutrients and is ultimately returned to the inorganic state by respiration and decay.

CONT

The carbon cycle models the movement and storage of carbon in the biosphere, lithosphere, hydrosphere and atmosphere. Carbon is stored in the biosphere as living organisms; in the atmosphere as carbon dioxide gas; in the lithosphere as soil organic matter, as fossil fuel deposits, and as sedimentary rock deposits; and in the oceans as dissolved carbon dioxide gas and as calcium carbonate shells in marine organisms. Processes that move carbon from one store to another include photosynthesis, respiration, oceanic diffusion, biomass combustion, fossil fuel burning, fossil fuel creation, and sedimentary rock formation.

OBS

Not to be confused with "Calvin cycle," which refers to the photosynthesis phase involving the incorporation of CO2 into glucose by enzymatic reactions.

French

Domaine(s)
  • Biochimie
  • Environnement
DEF

Suite des sites biologiques et des transformations et combinaisons dans lesquelles se trouvent engagé le carbone quand il circule à travers les différentes parties de la biosphère, de la lithosphère et de l'hydrosphère.

CONT

[...] le cycle du carbone constitue le cycle biogéochimique princeps puisque le carbone constitue l'élément clef de toutes les substances biochimiques et le moteur de tous les autres cycles d'éléments biogènes.

Spanish

Campo(s) temático(s)
  • Bioquímica
  • Medio ambiente
DEF

Circulación del carbono a través de los ecosistemas. El carbono en forma de CO2 es incorporado por las plantas verdes durante la fotosíntesis, pasando luego éstas a los herbívoros, carnívoros y saprófitos que cierran el ciclo, volviendo el CO2 a la atmósfera.

CONT

Ciclo del carbono. El carbono es elemento básico en la formación de las moléculas de carbohidratos, lípidos, proteínas y ácidos nucleicos, pues todas las moléculas orgánicas están formadas por cadenas de carbonos enlazados entre sí. La reserva fundamental de carbono, en moléculas de CO2 que los seres vivos puedan asimilar, es la atmósfera y la hidrosfera. Este gas está en la atmósfera en una concentración de más del 0,03% y cada año aproximadamente un 5% de estas reservas de CO2, se consumen en los procesos de fotosíntesis, es decir que todo el anhídrido carbónico se renueva en la atmósfera cada 20 años.

CONT

[...] el director del PUMA [...] dijo que es necesario enfatizar la importancia que tienen los océanos (ocupan el 70 por ciento de la superficie del planeta) en el ciclo del carbono, en la limpieza de la atmósfera, en la economía y en el desarrollo de los países.

Save record 16

Record 17 2010-06-02

English

Subject field(s)
  • Chemistry
  • Compressed and Liquefied Gas (Petroleum)
DEF

A material which is a gas at normal room temperature(20ºC) and pressure but is packaged as a pressurized gas, dissolved gas or gas liquified by compression or refrigeration.

CONT

The Controlled Products Regulations describe technical criteria for identifying materials which are classified as compressed gases. Regardless of whether a compressed gas is packaged in an aerosol can, a pressurized cylinder or a refrigerated container, it must by stored and handled very carefully. Puncturing or damaging the container or allowing the container to become hot may result in an explosion.

French

Domaine(s)
  • Chimie
  • Gaz de pétrole comprimés et liquéfiés
DEF

Matière ou mélange comprimé dont la pression absolue est supérieure à 275 kPa à 21 °C ou supérieure à 717 kPa à 54 °C, ou les deux; ou liquide ayant une pression de vapeur absolue supérieure à 275 kPa à 38 °C.

OBS

comprimé : Diminué de volume par pression.

Spanish

Campo(s) temático(s)
  • Química
  • Gas de petróleo comprimido y licuado
DEF

Cualquier material inflamable que tiene una presión de vapor que excede 40 psi absoluto a 38º C.

Save record 17

Record 18 2010-05-17

English

Subject field(s)
  • Gas Industry
CONT

aerosol: The pressurized gas used to propel substances out of a container.

OBS

... the product [is] a pressurized gas, i. e. a compressed gas, dissolved gas or gas liquefied by compression or refrigeration...

Key term(s)
  • pressurised gas

French

Domaine(s)
  • Industrie du gaz
CONT

aérosol : Gaz sous pression servant à pulvériser des substances enfermées dans un contenant.

Spanish

Campo(s) temático(s)
  • Industria del gas
Save record 18

Record 19 2008-11-04

English

Subject field(s)
  • Chemical Elements and Compounds
  • CBRNE Weapons
CONT

... CR... Newer riot control irritant developed in England in 1962 by the British chemists Higginbottom and Suchitzsky. About 5 times more effective than CS [and] much less toxic than CS. CR is not used in its pure form(a yellow powder) but dissolved in a solution of 80 parts of propylene glycol and 20 parts of water to form a 0. 1-percent CR solution. It is used in solution as a riot control agent. Eye pain, discomfort and excessive tearing occur with sometimes painful sensitivity to strong light or temporary blindness. Symptoms can persist for 15 to 30 minutes. Dubbed "fire gas" by the media because of the burning sensation it caused to the skin of rioters when used in Northern Ireland from 1973-1974. Authorized U. S. Army use in 1974.

CONT

CR gas or dibenzoxazepine ... is an incapacitating agent and a lachrymatory agent. ... CR is a pale yellow crystalline solid with a pepper-like odour. It is slightly soluble in water and does not degrade in it. CR is usually presented as a microparticulate solid, in the form of suspension in a propylene glycol based liquid. Contrary to its common name, it is not actually a gas but is solid at room temperature.

French

Domaine(s)
  • Éléments et composés chimiques
  • Armes CBRNE
CONT

Les gaz lacrymogènes les plus courants sont les irritants oculaires CS, CN, CR et l'irritant respiratoire «piment OC» en aérosol.

CONT

Le gaz CR a été découvert en 1962 au Royaume-Uni, où il est aujourd'hui stocké aux côtés du gaz CS et d'autres agents. Il serait six fois plus irritant que le gaz CS et 30 fois plus que le gaz CN; c'est un puissant irritant cutané.

Spanish

Save record 19

Record 20 2007-10-16

English

Subject field(s)
  • Crude Oil and Petroleum Products
  • Petroleum Deposits
DEF

Oil containing no dissolved gas, and therefore devoid of any built-in drive mechanism...

OBS

... as opposed to wild or live oil.

OBS

dead oil: term usually used in the plural (dead oils).

Key term(s)
  • dead oils

French

Domaine(s)
  • Pétroles bruts et dérivés
  • Gisements pétrolifères
DEF

Huile privée de son gaz, qui ne se déplace plus dans le gisement que sous l'effet de la pesanteur [...]

OBS

huile morte : terme habituellement utilisé au pluriel (huiles mortes).

Key term(s)
  • huiles mortes

Spanish

Save record 20

Record 21 2006-10-12

English

Subject field(s)
  • Industrial Tools and Equipment
  • Beverages
OBS

Method for preparing a carbonated beverage. A method of preparing a beverage from a syrup and water containing dissolved air, comprising the steps of leading a quantity of water from a remote source through a check valve to a proportioner device through a first conduit at a relatively low pressure, mixing the water with syrup in the proportioner to form an uncarbonated beverage mix, leading the beverage mix from the proportioner to a carbonator, introducing an excess of carbon dioxide gas to the beverage mix, mixing the carbon dioxide gas and the beverage mix in the carbonator...

French

Domaine(s)
  • Outillage industriel
  • Boissons (Industrie de l'alimentation)

Spanish

Save record 21

Record 22 2006-08-03

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Heat (Physics)
  • Geophysics
DEF

[Physical law that states that] the mass of a gas dissolved by a given volume of liquid at a given temperature is proportional to the pressure.

OBS

The volume dissolved is independent of pressure.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Chaleur (Physique)
  • Géophysique
DEF

Loi physique selon laquelle, à température donnée, la quantité de gaz dissous à saturation dans un liquide est proportionnelle à la pression partielle de gaz au contact du liquide.

Spanish

Campo(s) temático(s)
  • Aerodinámica y teoría de los gases
  • Calor (Física)
  • Geofísica
Save record 22

Record 23 2005-08-04

English

Subject field(s)
  • Energy Transformation
DEF

... a high pressure(close to lithostatic) sealed container filled with porous material saturated with compressed water and dissolved gas.

CONT

An interesting feature of these fields is that they may occur in "non-thermal areas", about 27 to 30°C/km only ... These fields are filled with pressurized hot water of "connate" origin at pressures ranging from about 40% to about 90% "in excess" of the hydrostatic pressure corresponding to the depth ... The pore pressures in these trapped pockets have values intermediate between the hydrostatic and lithostatic pressures.

French

Domaine(s)
  • Transformation de l'énergie
CONT

Une de leurs [des champs géopressurisés] caractéristiques intéressantes est qu'ils se trouvent dans des zones non thermiques, où les gradients de température varient de 27 à 3 0°C/km seulement. [...] Ces champs sont remplis d'eau chaude en surpression d'origine connée à des pressions variant approximativement de 40 à 90 % au-dessus de la pression hydrostatique correspondant à la profondeur. [...] Les pressions interstitielles dans ces réservoirs ont des valeurs intermédiaires entre pressions hydrostatique et lithostatique [...]

Spanish

Save record 23

Record 24 2004-02-16

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Equipment (Chemistry)
CONT

... TLC and gas chromatographs, CNS(carbon, nitrogen, sulphur), dissolved organic carbon... and near infra-red reflectance analyzers.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Équipement (Chimie)
CONT

[...] des chromatographes en phase liquide et en phase gazeuse, des analyseurs de CNS (carbone, azote, soufre), de carbone organique dissous [...] et de réflection dans le proche infrarouge.

Key term(s)
  • analyseur de carbone, azote, soufre

Spanish

Save record 24

Record 25 2003-12-15

English

Subject field(s)
  • Ecology (General)
CONT

Ohio’s program creates measurable standards by assigning every water body at least one beneficial use. Beneficial use designations describe existing or potential uses of water bodies. They take into consideration the use and value of public water supplies, protection and propagation of aquatic life, recreation in and on the water, and agricultural, industrial and other purposes. ... Aquatic Life Habitat Use Designation. Warmwater Habitat (WWH) Capable of supporting and maintaining a balanced community of warmwater aquatic organisms. This is the most widely applied use designation assigned to warmwater rivers and streams in Ohio.

CONT

[A] critical environmental factor that directly influences the gas impact on water organisms is the concentration of dissolved oxygen.

OBS

Used in the plural, the concrete expression "aquatic organisms" can be replaced by the abstract concept of "aquatic life" (q.v.). One can also be more specific and use the expression "aquatic fauna and flora."

OBS

water organisms: This expression is usually specified by an adjective, e.g. ballast water organisms, cold water organisms, deep water organisms, fresh water organisms, pond water organisms, salt water organisms, warm water organisms, waste water organisms, etc.

Key term(s)
  • aquatic organisms
  • water organisms

French

Domaine(s)
  • Écologie (Généralités)
CONT

Apprécier le risque écotoxicologique lié à la contamination des milieux aquatiques par les pesticides demande de pouvoir d'une part, mesurer les niveaux de contamination des milieux et des organismes exposés, et, d'autre part, caractériser les impacts de ces substances sur les organismes aquatiques.

OBS

Pour désigner l'ensemble des organismes aquatiques on peut employer l'expression abstraite «vie aquatique», ou l'expression descriptive «faune et flore aquatiques». Voir aussi les fiches pour «vie aquatique», «faune aquatique» et «flore aquatique».

Key term(s)
  • organismes aquatiques

Spanish

Save record 25

Record 26 2001-08-22

English

Subject field(s)
  • Refractory Materials (Metallurgy)
CONT

As they fall in a drop tube, the droplets would then cool primarily by radiating heat so that they would solidify from the outside inward. As the metal cools, much of the dissolved gas would come out of solution and move toward the hotter region at the center of a droplet, where it would form a bubble.

French

Domaine(s)
  • Matériaux réfractaires (Métallurgie)
OBS

tube compte-gouttes : construit sur le modèle four à compte-gouttes qui est l'équivalent de «drop tube furnace» (domaine de la combustion du charbon pulvérisé, selon Eurodicotom].

Spanish

Save record 26

Record 27 2001-08-22

English

Subject field(s)
  • Refractory Materials (Metallurgy)
CONT

Continuous melt refining is carried out in two stages : 1. Dissolved gas is flushed out with an inert gas, which if fed into the melt through a conventional bubbler... 2. The melt is filtered by such conventional filters as glass or ceramic fiber meshes, monolithic porous ceramics, or granulated filter beds.

French

Domaine(s)
  • Matériaux réfractaires (Métallurgie)

Spanish

Save record 27

Record 28 2001-06-28

English

Subject field(s)
  • Oil Production
DEF

The natural or induced force which is needed to drive oil or gas out of a reservoir and up the well bore.

CONT

Some drive mechanisms used in modern well technology are dissolved gas drive, water drive, gas cap drive, gas drive, miscible flooding and gravity drainage.

French

Domaine(s)
  • Production pétrolière
CONT

drainage : [...] déplacement du pétrole à travers une roche réservoir dû à la mise en production des puits [...] Il existe plusieurs modes de drainage [...] drainage par expansion d'une calotte de gaz [...] drainage par expansion des gaz dissous [...] drainage par gravité [...] drainage par poussée de gaz [...] drainage en phase miscible [...] drainage par poussée hydraulique.

Spanish

Save record 28

Record 29 2000-09-28

English

Subject field(s)
  • Storage of Oil and Natural Gas
DEF

An oil as it exists at atmospheric conditions in the stock tank.

CONT

Stock-tank oil lacks much of the dissolved gas present at reservoir conditions of pressure and temperatures.

Key term(s)
  • stocktank oil

French

Domaine(s)
  • Stockage du pétrole et du gaz naturel
DEF

Pétrole brut récupéré au stockage et dont le volume liquide est inférieur à celui parti du gisement.

Spanish

Save record 29

Record 30 2000-06-14

English

Subject field(s)
  • Oil Production
DEF

A source of natural reservoir energy in which the lighter hycrocarbon components that exist as a liquid in the reservoir before it is produced come out in the form of gas as the reservoir is produced. The solution gas coming out of the oil expands to force the oil into the wellbore.

French

Domaine(s)
  • Production pétrolière
CONT

drainage par expansion de gaz dissous : On utilise dans ce mode d'extraction l'expansion graduelle du gaz contenu dans un pétrole saturé (au niveau du gisement). Cette expansion est une conséquence de la décompression qui se produit pendant l'ascension du pétrole vers la surface.

Spanish

Save record 30

Record 31 2000-06-14

English

Subject field(s)
  • Petroleum Deposits
  • Natural Gas and Derivatives
DEF

Natural gas in solution in crude oil in the reservoir.

DEF

The lighter hydrocarbons that exist as a liquid under reservoir conditions but that change to a gas when the reservoir is produced.

French

Domaine(s)
  • Gisements pétrolifères
  • Gaz naturel et dérivés
DEF

Hydrocarbure en phase liquide dans les conditions de pression et de température d'un gisement et normalement en phase gazeuse dans les conditions de surface.

Spanish

Save record 31

Record 32 2000-03-21

English

Subject field(s)
  • Oil Drilling
  • Pumps
DEF

A condition sometimes encountered in a pumping well whereby dissolved gas is released from solution during the upstroke of the plunger, appearing as free gas between the valves. Where pressure is sufficient, the standing valve is unable to open and, consequently, no fluid enters the tubing.

French

Domaine(s)
  • Forage des puits de pétrole
  • Pompes

Spanish

Save record 32

Record 33 1997-03-26

English

Subject field(s)
  • Chemical Engineering
DEF

A form of pretreatment in which a catalyst is heated in vacuo to remove adsorbed or dissolved gas.

Key term(s)
  • catalyst outgassing

French

Domaine(s)
  • Génie chimique
DEF

Une forme de prétraitement au cours duquel on chauffe un catalyseur sous vide pour éliminer les gaz adsorbés ou dissous.

Spanish

Save record 33

Record 34 1995-11-08

English

Subject field(s)
  • Water Treatment (Water Supply)
CONT

Stripping consists of entraining the gases or volatile materials dissolved in the water by means of a current of steam, gas or air passing in the opposite direction through the liquid mass to be purified.

French

Domaine(s)
  • Traitement des eaux
CONT

Le stripping consiste à provoquer l'entraînement de gaz ou de matières volatiles dissous dans l'eau au moyen d'un courant de vapeur, de gaz ou d'air traversant à contre courant la masse liquide à épurer.

Spanish

Save record 34

Record 35 1994-11-11

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
CONT

Any product, material or substance contained under pressure, including compressed gas, dissolved gas or gas liquefied by compression or refrigeration, that has... an absolute vapour pressure greater than 294 kilopascals(2. 90 atmospheres) at 50[ degrees C]... [shall be included in Class A of the hazardous materials classification].

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
CONT

"liquide inflammable" : liquide ayant un point d'éclair inférieur à 37.8 [degrés C) et une pression de vapeur absolue ne dépassent par 275.8 kPa à 37.8 [degrés C].

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
Save record 35

Record 36 1993-07-15

English

Subject field(s)
  • Pulp Preparation (papermaking)
OBS

High-Consistency System. Figure 11-18 shows a representative system where pulp is handled in the 25% to 28% consistency range. Typically, a press is used to raise the feed consistency to about 30%. Fresh caustic or oxidized white liquor along with the magnesium protector is added to the pulp at the discharge of the press. A thick stock pump then transfers the pulp to a fluffer via a feed pipe in which a gas-tight plug is formed. The fluffed pulp flows down the pressurized reactor as a loose bed, while gaseous oxygen is continuously dissolved into the liquid phase and reacted with the pulp.... Oxygen gas is added to either top or bottom to maintain a partial pressure within the 90 to 130 psi range. Relief is taken from the head space at the top of the tower to remove combustibles and other noncondensible gases, and control overall reactor pressure. At the bottom of the tower, the reacted pulp is diluted with post-oxygen filtrate and pumped at about 6% consistency to a blow tank.

French

Domaine(s)
  • Préparation de la pâte à papier

Spanish

Save record 36

Record 37 1991-04-05

English

Subject field(s)
  • Chemistry

French

Domaine(s)
  • Chimie
DEF

Gaz présent à l'état dissous dans l'eau de mer, par suite des échanges avec l'atmosphère ou le sédiment et de l'activité biologique.

Spanish

Campo(s) temático(s)
  • Química
Save record 37

Record 38 1989-06-30

English

Subject field(s)
  • Chemistry
  • Water Treatment (Water Supply)
DEF

"Dissolved gases" : Gases dissolved under pressure in a solvent, which may be absorbed in a porous material;

CONT

Any product, material or substance contained under pressure, including compressed gas, dissolved gas or gas liquefied by compression or refrigeration that has... an absolute pressure in the... pressure vessel in which it is packaged greater than 275 kilopascals... [shall be included in Class A of the hazardous material classification.)

French

Domaine(s)
  • Chimie
  • Traitement des eaux
DEF

(...) gaz dissous sous pression dans un solvant qui peut être absorbé par une matière poreuse;

CONT

(...) avec une pression toujours positive dans le lit filtrant et un encrassement en profondeur, le filtre Aquazur V est capable de traiter des eaux difficiles et en particulier des eaux (...) saturées en gaz dissous sans qu'il se produise de dégazage au sein du sable ni de colmatage artificiel pour les gaz occlus dans l'eau.

Spanish

Save record 38

Record 39 1989-04-03

English

Subject field(s)
  • Environmental Studies and Analyses
  • Air Pollution
CONT

Organics captured on particulate filters or gas traps are dissolved in an organic solvent, passed through a column which separates compounds by their solubilities and detected by burning the output in a flame or by electron capture techniques.

French

Domaine(s)
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

Save record 39

Record 40 1986-05-06

English

Subject field(s)
  • Water Treatment (Water Supply)
  • Environmental Studies and Analyses
DEF

The amount of chlorine available as dissolved gas, hypochlorous acid, or hypochlorite ion, that is not combined with an amine or other organic compound.

French

Domaine(s)
  • Traitement des eaux
  • Études et analyses environnementales
DEF

Dans un composé, quantité de chlore disponible sous forme de gaz dissous, d'acide hypochloreux ou d'ion hypochlorite, et qui n'est pas combiné avec une amine ou un autre composé organique.

Spanish

Save record 40

Record 41 1981-07-27

English

Subject field(s)
  • The Mouth
OBS

The procedure of the elimination of nitrogen dissolved in the body by breathing nitrogen-free gas such as oxygen or a mixture such as oxygen and helium. The former process is also known as pre-oxygenation. The procedure is used as a means of reducing the probability of the occurrence of Decompression Sickness upon subsequent exposure to altitude.

French

Domaine(s)
  • Cavité buccale
OBS

Procédé par lequel on élimine l'azote dissous dans le corps grâce à la respiration de gaz ne contenant pas d'azote, par exemple de l'oxygène ou un mélange d'oxygène et d'hélium. La première de ces techniques est aussi appelée : «pré-oxygénation». Le procédé est utilisé pour réduire la probabilité de l'apparition du mal de décompression au cours d'une montée en altitude survenant immédiatement après.

Spanish

Save record 41

Record 42 1981-07-27

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Astronautics
DEF

The breathing of oxygen before ascent to actual or simulated altitude, aimed at the reduction of total body content of dissolved inert gas and thus reduction of the risk of the development of Decompression sickness. A form of eenitrogenation.

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Astronautique
DEF

Respiration d'oxygène pratiquée avant la montée jusqu'à une altitude réelle ou simulée, destinée à réduire le contenu total des gaz inertes dissous dans le corps et ainsi diminuer le danger d'apparition du mal de décompression. Une forme de dénitrogénation.

Key term(s)
  • dénitrogénation

Spanish

Save record 42

Record 43 1981-01-29

English

Subject field(s)
  • Petroleum Distillation
CONT

To maximize isotopic exchange, it is very important that the [hydrogen sulphide] in the units be maintained at a very high purity(99. 5%). Unfortunately, the natural water, although treated, still contains small quantities of dissolved oxygen, carbon dioxide, nitrogen, and other gases. If not removed continuously, these gases would accumulate and decrease the [hydrogen sulphide] purity. A continuous gas purge is drawn from the top of each firs stage cold tower and send to the purge tower where the [hydrogen sulphide] is absorbed by the incoming water. The gaseous impurities proceed from the purge tower to the absorber where any remaining [hydrogen sulphide] is absorbed. The gases, essentially [hydrogen sulphide] free, are then flared. The flare is used in this case to burn any [hydrogen sulphide] that might not have been absorbed.

French

Domaine(s)
  • Distillation du pétrole
OBS

Lavage de gaz : le gaz sous pression, par exemple des hydro-carbures gazeux contenant de l'hydrogène sulfuré ou du gaz carbonique, rencontre à contre-courant une solution d'éthanolamine dans la colonne (colonne à plateaux, garnissage spraypack, etc). La solution introduite au sommet de la colonne a été régénérée et contient un minimum de gaz acide. Avant d'être évacué, le gaz traverse un dévésiculeur, matelas métallique par exemple, qui évite les entraînements liquides. La solution extraite à la base, riche en [gaz carbonique] et [en hydrogène sulfuré] est envoyée après réchauffage dans une colonne de régénération (également à plateau ou garnie) ou elle est débarrassée des gaz acides. La température dans cette colonne est supérieure à 100 °C.

Spanish

Save record 43

Record 44 1981-01-26

English

Subject field(s)
  • Sewers and Drainage
  • Water Treatment (Water Supply)
  • Wastewater Treatment
CONT

... with a positive pressure throughout the filter bed at all times, and with in-depth clogging, the Aquazur V filter is capable of treating difficult water, particularly water rich in phytoplankton and water saturated with dissolved gas without the occurrence of deaeration within the sand or of artificial clogging for the gases occluded in the water.

French

Domaine(s)
  • Égouts et drainage
  • Traitement des eaux
  • Traitement des eaux usées
CONT

[...] avec une pression toujours positive dans le lit filtrant et un encrassement en profondeur, le filtre Aquazur V est capable de traiter des eaux difficiles et en particulier des eaux riches en phytoplancton ou des eaux saturées en gaz dissous sans qu'il se produise de dégazage au sein du sable ni de colmatage artificiel pour les gaz occlus dans l'eau.

Spanish

Save record 44

Record 45 1981-01-26

English

Subject field(s)
  • Water Treatment (Water Supply)
  • Wastewater Treatment
CONT

... with a positive pressure throughout the filter bed at all times, and with in-depth clogging, the Aquazur V filter is capable of treating difficult water, particularly water rich in phytoplankton and water saturated with dissolved gas without the occurrence of deaeration within the sand or of artificial clogging for the gases occluded in the water.

French

Domaine(s)
  • Traitement des eaux
  • Traitement des eaux usées
CONT

[...] avec une pression toujours positive dans le lit filtrant et un encrassement en profondeur, le filtre Aquazur V est capable de traiter des eaux difficiles et en particulier des eaux riches en phytoplancton ou des eaux saturées en gaz dissous sans qu'il se produise de dégazage au sein du sable ni de colmatage artificiel pour les gaz occlus dans l'eau.

Spanish

Save record 45

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