TERMIUM Plus®

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ENRICHMENT MATERIAL [10 records]

Record 1 2015-05-08

English

Subject field(s)
  • Nuclear Science and Technology
  • Nuclear Power Stations
DEF

The nuclear material in which the fraction of fissile material has been increased by enrichment.

OBS

improved nuclear material: term and definition standardized by ISO.

French

Domaine(s)
  • Sciences et techniques nucléaires
  • Centrales nucléaires
DEF

Matière nucléaire dans laquelle la proportion de matière fissile a été augmentée par enrichissement.

OBS

matière nucléaire valorisée : terme et définition normalisés par l'ISO.

Spanish

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Record 2 2015-04-29

English

Subject field(s)
  • Nuclear Fission Reactors
DEF

A reactor having a core containing local regions(seeds) of enriched fuel distributed in a lattice of fuel of lower enrichment or of fertile material.

OBS

seed core reactor: term and definition standardized by ISO.

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Réacteur dont le cœur contient des régions limitées (germes) de combustible enrichi réparties dans un réseau de combustible de moindre enrichissement ou de matière fertile.

OBS

réacteur à cœur à germes : terme et définition normalisés par l'ISO.

Spanish

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Record 3 2011-11-23

English

Subject field(s)
  • Nuclear Fission Reactors
DEF

... the tube of material that houses the nuclear fuel pellets and provides the containment of radioactive species produced during fission.

CONT

Disclosed herein is a zirconium alloy nuclear fuel cladding tube for use in nuclear fuel rods of a nuclear reactor. The nuclear fuel cladding tube comprises an elongated hollow metal tube for accommodating a nuclear fuel and a metal oxide film formed on the outer surface of the metal tube wherein the metal is a zirconium alloy and the oxide film has a thickness of 0.5~3.7 µm.

CONT

A fuel rod for a nuclear reactor fuel assembly includes a cladding tube and a plurality of fuel pellets contained in the tube and composed of fissile material, such as uranium dioxide, having a single enrichment of U-235. At least some of the fuel pellets have an annular configuration. Some of the annular fuel pellets have an annulus of a first size, whereas other... annular fuel pellets have an annulus of a second size different from the first size.

French

Domaine(s)
  • Réacteurs nucléaires de fission
CONT

Matériaux de gainage des réacteurs à eau [...] Concernant les tubes de gainage, ses principales fonctions sont de divers ordres : assurer le maintien de la colonne combustible; isoler le combustible du fluide caloporteur pour le protéger de son action corrosive; évacuer l'énergie; assurer le confinement des produits de fission.

CONT

Dans un combustible pour réacteur à eau légère la matière fissile se présente sous forme de petits cylindres en oxyde d'uranium fritté dits «pastilles». Un certain nombre de ces pastilles est empilé dans un tube - dit tube de gainage ou gaine - scellé aux deux extrémités par des bouchons soudés afin d'isoler la matière fissile du milieu extérieur; cet ensemble forme ce qu'on appelle un crayon combustible.

Spanish

Save record 3

Record 4 2009-09-16

English

Subject field(s)
  • Pipes and Fittings
  • Energy Transformation
  • Nuclear Fission Reactors
CONT

A fuel rod for a nuclear reactor fuel assembly includes a cladding tube and a plurality of fuel pellets contained in the tube and composed of fissile material, such as uranium dioxide, having a single enrichment of U-235. At least some of the fuel pellets have an annular configuration. Some of the annular fuel pellets have an annulus of a first size, whereas other... annular fuel pellets have an annulus of a second size different from the first size.

French

Domaine(s)
  • Tuyauterie et raccords
  • Transformation de l'énergie
  • Réacteurs nucléaires de fission
CONT

Dans un combustible pour réacteur à eau légère la matière fissile se présente sous forme de petits cylindres en oxyde d'uranium fritté dits «pastilles». Un certain nombre de ces pastilles est empilé dans un tube - dit tube de gainage ou gaine - scellé aux deux extrémités par des bouchons soudés afin d'isoler la matière fissile du milieu extérieur; cet ensemble forme ce qu'on appelle un crayon combustible.

Spanish

Save record 4

Record 5 2006-05-30

English

Subject field(s)
  • Petrography
OBS

protore : As commonly employed today, the rock below the sulfide zone of supergene enrichment; the primary material that cannot be produced at a profit under existing conditions but that may become profitable with technological advances or price increases.

Key term(s)
  • carbonate-sulfide lithofacies protore

French

Domaine(s)
  • Pétrographie

Spanish

Save record 5

Record 6 2006-05-18

English

Subject field(s)
  • Metals Mining
CONT

... protore ... is mineral material in which an initial but uneconomic concentration of metals has occurred that may by further natural processes be upgraded to the level of ore.

OBS

protore : In older writings, any primary mineralized material too low in tenor to constitute ore but from which ore may be formed through secondary enrichment. As commonly employed today, the rock below the sulfide zone of supergene enrichment; the primary material that cannot be produced at a profit under existing conditions but that may become profitable with technological advances or price increases.

PHR

Cherty, copper-bearing, copper-gold, sulphide protore.

French

Domaine(s)
  • Mines métalliques
CONT

On nomme «protore» le minerai normal qui n'est pas modifié par la cémentation et qu'on trouve en profondeur.

CONT

Au Brésil, tous les gisements se situent sur des concentrations primaires de rhodochrosite souvent recristallisés en grenat spessartine. Le profil type comprend de bas en haut : le protore, le minerai sous forme de plaques indurées composées de psilomélane, nsutite et pyrolusite, une zone bréchique et des pisolithes à cryptomélane.

PHR

Protore cherteux, cuprifère, de cuivre-or, sulfuré.

Spanish

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Record 7 2006-03-21

English

Subject field(s)
  • Training of Personnel
  • Education Theory and Methods
  • Internet and Telematics
CONT

The Kosovo Educational Enrichment Programme(KEEP) envisages school improvement by initiating a sustainable school reform program relying on teacher initiative, improvement of teaching and administrative staff, assisting the update of teaching content and methods, parent and community involvement, solving the urgent material problems of schools, and co-operating with local authorities.

French

Domaine(s)
  • Perfectionnement et formation du personnel
  • Théories et méthodes pédagogiques
  • Internet et télématique

Spanish

Campo(s) temático(s)
  • Capacitación del personal
  • Teorías y métodos pedagógicos
  • Internet y telemática
Save record 7

Record 8 2001-09-11

English

Subject field(s)
  • Metals Mining
  • Geochemistry
  • Economic Geology
CONT

It has long been recognized that specific regions of the world possess a notable concentration of deposits of a certain metal or metals, these regions are known as metallogenic provinces. Such provinces can be delineated by reference to a single metal ... or to several metals or metal associations. In the latter case, the metallogenic province may show a zonal distribution of the various metallic deposits.

CONT

... in the forties and fifties much emphasis was still placed on the magmatic-hydrothermal theory for the origin of the majority of metallic deposits.

CONT

In supergene sulphide enrichment the minerals of economic interest are carried down into hypogene(primary) ore where they are precipitated with a resultant increase in metal content, whereas in the case of iron and manganese ores it is chiefly the gangue material that is mobilized and carried away to leave behind a purer metal deposit.

French

Domaine(s)
  • Mines métalliques
  • Géochimie
  • Géologie économique
CONT

La majeure partie des hydroxydes se trouve dans les zones d'oxydation des gîtes métalliques et dans les roches altérées [...] Oxydes et hydroxydes sont les principaux minerais de fer, chrome, manganèse, uranium, étain, aluminium, niobium, tantale.

Spanish

Save record 8

Record 9 1998-08-05

English

Subject field(s)
  • Foundry Practice
CONT

In spheroidal graphite cast iron castings it happens that graphite has accumulated by flotation in cope edges. The nodules are often exploded and there is also an enrichment in oxide and sulphide of magnesium. The material has poor mechanical properties.

French

Domaine(s)
  • Fonderie
CONT

Cas où, dans des moulages en fonte à graphite sphéroïdal, des sphérolithes souvent éclatés s'accumulent à la partie supérieure en même temps que de l'oxyde et du sulfure de magnésium. Le matériau a alors de mauvaises caractéristiques mécaniques.

Spanish

Save record 9

Record 10 1992-02-27

English

Subject field(s)
  • Metrology and Units of Measure
  • Nuclear Physics
DEF

The product of the mass of nuclear material and the respective evaluation factor expressed in kilograms. The evaluation factor is-in the case of plutonium : 1;-in the case of uranium with an enrichment of 0, 01(1 %) and above : the square of the enrichment;-in the case of uranium with enrichment below 0, 01(1 %) and above 0, 005(0, 5 %) : 0, 000 1;-in the case of depleted uranium with an enrichment of 0, 005(0, 5 %) and below and for thorium : 0, 000 05.

OBS

The term "effective kilogram" is currently not in actual use. However, the term has been used in the past and is contained in existing legal agreements.

OBS

Term standardized by ISO.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique nucléaire
DEF

Produit de la masse de matière nucléaire par un coefficient d'évaluation, exprimé en kilogrammes. Le coefficient d'évaluation est - dans le cas du plutonium : 1; - dans le cas de l'uranium ayant un enrichissement égal ou supérieur à 0,01 (1 %) : le carré de l'enrichissement; - dans le cas de l'uranium ayant un enrichissement inférieur à 0,01 (1 %) mais supérieur à 0,005 (0,5 %) : 0,000 1; - dans le cas de l'uranium appauvri ayant un enrichissement égal ou inférieur à 0,005 (0,5 %) et dans le cas du thorium : 0,000 05.

OBS

Le terme "kilogramme effectif" n'est pratiquement pas utilisé. Mais il a été utilisé dans le passé et figure dans des règlements en vigueur.

OBS

Terme normalisé par l'ISO.

Spanish

Save record 10

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