TERMIUM Plus®

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ENRICHED STREAM [3 records]

Record 1 2021-01-12

English

Subject field(s)
  • Nuclear Physics
  • Nuclear Fission Reactors
  • Nuclear Waste Materials
CONT

During the enrichment process in uranium enrichment plants, the percentage of the fissile uranium isotope uranium-235 is raised from its natural [0. 711%] to a reactor grade of 3. 2%... or 3. 6%... This process not only produces the enriched product, but also a waste stream depleted in uranium-235, typically to 0. 3%. The degree of depletion of uranium-235 in this depleted uranium waste(the "tails assay") is a parameter that can be adjusted to economical needs...

French

Domaine(s)
  • Physique nucléaire
  • Réacteurs nucléaires de fission
  • Déchets nucléaires
CONT

L'uranium, tel qu'on le trouve dans la nature, est constitué pour 0,711 % de son poids, par l'isotope fissile léger U [uranium] 235. Or, les réacteurs à eau légère fonctionnent avec de l'uranium contenant environ 3 % d'U 235. Le procédé d'enrichissement a donc pour objet de séparer les isotopes de l'uranium naturel pour obtenir de l'uranium enrichi contenant un pourcentage d'U 235 (pourcentage d'enrichissement) supérieur à celui du métal naturel et de l'uranium apprauvi contenant moins d'U 235 que le métal naturel (le contenu en U 235 étant appelé teneur de rejet).

Spanish

Save record 1

Record 2 1999-03-23

English

Subject field(s)
  • Dust Removal
CONT

Multi-stage liquid impinger. ... for the separation of particles according to their deposition sites in the respiratory system. The fractions are collected gently into liquid where clumps separate into viable units.

CONT

The AGI-30 sampler is a high-velocity liquid impinger widely used for air sample collection. [It] operates by drawing aerosols at a flow rate of 12.3-12.6 L/min through an inlet tube curved to simulate the nasal passage. In contrast to impaction of bioaerosols onto agar, impingers may give higher bacterial counts in environments where bacteria are carried as aggregates, mainly because bacterial clusters are broken up.

CONT

SCP-1021. A two stage collector/concentration design... The particle enriched,... air stream is directed to a liquid impactor which is an integral component of the sampler. The impactor, containing 40 ml of liquid, retains particles which are aerodynamically 2. 5 microns or larger in diameter.

French

Domaine(s)
  • Dépoussiérage
OBS

séparateur à impacts; impacteur : Séparateur qui capte les poussières et les aérosols en suspension dans un effluent gazeux, par choc sur une surface, en milieu sec ou par jet dans un liquide.

OBS

Impacteur de Greenburg et Smith. [...] Le bas du flacon est garni d'eau. Cet appareil peut être également employé pour l'absorption de gaz avec des réactifs liquides appropriés.

Spanish

Save record 2

Record 3 1997-06-23

English

Subject field(s)
  • Education (General)
OBS

Term and equivalent used in the publication: The Estates General on Education, Quebec, 1995-1996.

French

Domaine(s)
  • Pédagogie (Généralités)
OBS

Terme et équivalent relevés dans Les États généraux sur l'éducation, Québec, 1995-1996.

Spanish

Save record 3

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