TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The process of separating one component (the extractant) from another (the matrix) by using a fluid at a temperature and pressure above its critical point as the extracting solvent.  4, record 1, English, - supercritical%20fluid%20extraction

Record number: 1, Textual support number: 1 CONT

Supercritical fluid extraction(SFE) of plant material with solvents like [carbon dioxide], propane, butane, or ethylyne... allows the processing of plant material at low temperatures, hence limiting thermal degradation, and avoids the use of toxic solvents. Although... SFE is mainly used for decaffeination of coffee and tea as well as production of hop extracts on a large scale, there is... a growing interest in this extraction method for other industrial applications...  5, record 1, English, - supercritical%20fluid%20extraction

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Procédé d'extraction d'un soluté d'une substance en utilisant un fluide aux pressions et températures supérieures à leurs valeurs critiques comme solvant d'extraction.  7, record 1, French, - extraction%20par%20fluide%20supercritique

Record number: 1, Textual support number: 1 CONT

Extraction par fluide supercritique[.] Depuis la fin des années 1970, les fluides supercritiques ont été utilisés pour isoler les produits naturels [...] Actuellement, le développement des procédés et des équipements commence à porter ses fruits et les industries s'intéressent de plus en plus aux techniques supercritiques [...] Le dioxyde de carbone supercritique est le solvant le plus largement utilisé pour l'extraction par fluide supercritique[. Il améliore] le rendement d'extraction [et] évite le dommage thermique [...]  3, record 1, French, - extraction%20par%20fluide%20supercritique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A test that determines the potential for degradation of a test material due to exposure to light.  1, record 2, English, - test%20of%20photostability

Record number: 2, Textual support number: 1 OBS

test of photostability: term and definition standardized by the International Organization for Standardization (ISO).  3, record 2, English, - test%20of%20photostability

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Essai qui détermine le potentiel de dégradation du matériau d'essai sous l'action de la lumière.  1, record 2, French, - essai%20de%20photostabilit%C3%A9

Record number: 2, Textual support number: 1 OBS

essai de photostabilité : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).  2, record 2, French, - essai%20de%20photostabilit%C3%A9

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A test that determines the potential for degradation of a material.  1, record 3, English, - material%20degradation%20test

Record number: 3, Textual support number: 1 OBS

material degradation test : term and definition standardized by the International Organization for Standardization(ISO).  2, record 3, English, - material%20degradation%20test

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Essai qui détermine le potentiel de dégradation d'un matériau.  1, record 3, French, - essai%20de%20d%C3%A9gradation%20de%20mat%C3%A9riau

Record number: 3, Textual support number: 1 OBS

essai de dégradation de matériau : terme (essai de dégradation du matériau) et définition normalisés par l'Organisation internationale de normalisation (ISO).  2, record 3, French, - essai%20de%20d%C3%A9gradation%20de%20mat%C3%A9riau

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A coal whose attritus is composed mainly of transparent humic degradation material.  2, record 4, English, - humic%20coal

Record number: 4, Textual support number: 1 OBS

Depending on the origin, coals have been grouped in to (a) sapropelic coal, and (b) humic coals ... Unlike sapropelic coals the humic coals are banded in character and the constituent bands are distinct in their physical appearance. Humic coals have a series of rank starting from wood-peat-lignite-bituminous coal to anthracite. In humic coals, the remains of wood and bark predominate. Over time, geological processes apply pressure to peat, which is transformed successively into the following ranks: lignite, ... subituminous coal, ... bituminous coal [and] anthracite.  3, record 4, English, - humic%20coal

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Charbon formé de laies de brillance variée, alternées plus ou moins finement, résultant de l'accumulation de débris végétaux autochtones et hypautochtones plus ou moins importants.  2, record 4, French, - charbon%20humique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

It wasn’t until the 1980's when a new material, GaAlAs(gallium aluminum arsenide) was developed, that a rapid growth in the use of LEDs began to occur. GaAlAs technology provided superior performance over previously available LEDs. The brightness was over 10 times greater than standard LEDs due to increased efficiency and multi-layer, heterojunction type structures. The voltage required for operation was lower resulting in a total power savings. The LEDs could also be easily pulsed or multiplexed. This allowed their use in variable message and outdoor signs. LED were also designed into such application as bar code scanners, fiber optic data transmission systems, and medical equipment. Although this was a major breakthrough in LED Technology, there were still significant drawbacks to GaAlAs material. First, it was only available in a red 660nm wavelength. Second, the light output degradation of GaAlAs is greater than that of standard technology.  2, record 5, English, - gallium%20aluminum%20arsenide

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Composé III-V ternaire, résultant de la combinaison de l'arsenic, du gallium et de l'aluminium, utilisé comme semi-conducteur dans la fabrication de composants optoélectroniques.  1, record 5, French, - ars%C3%A9niure%20d%27aluminium%20et%20de%20gallium

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A composting process which can be used to treat waste food or other organic materials in a liquid slurry or semi-solid form.  1, record 6, English, - thermophilic%20aerobic%20digestion

Record number: 6, Textual support number: 1 CONT

Feedstock is fed into a digester where air is forced through the material to encourage the growth of aerobic microbes. The process is exothermic and the heat is maintained at thermophilic conditions of between 55-65°C. The retention time of the process is usually between two and five days, as degradation is rapid. Following digestion the digestate is usually dewatered or dried. The output is a bio-fertiliser.  1, record 6, English, - thermophilic%20aerobic%20digestion

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

Stabilisation aérobie thermophile (souvent appelée digestion aérobie thermophile). Cette technique est semblable à celle utilisée pour le compostage de déchets organiques solides. Elle utilise le caractère exothermique des réactions d'oxydation pour accroître la température dans le réacteur; cette montée de température élève la vitesse de réaction et peut, si elle est suffisante, permettre une certaine décontamination de la boue en germes pathogènes. Les systèmes de stabilisation aérobie thermophile travaillent entre 45 et 60°C.  3, record 6, French, - stabilisation%20a%C3%A9robie%20thermophile

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

The vitreous appearing components of coal, which in thin section are shown to have been derived from the woody tissues of plants ...  2, record 7, English, - anthraxylon

Record number: 7, Textual support number: 1 CONT

Microscopic material resembling anthraxylon in color and translucency but less than 14 microns wide is included with translucent humic degradation matter.  2, record 7, English, - anthraxylon

Record number: 7, Textual support number: 1 OBS

[Anthraxylon] forms lustrous bands together with dull attritus in banded coal.  3, record 7, English, - anthraxylon

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

L'anthraxylon est jaune à rouge brunâtre, translucide, en lentilles allongées, avec structure cellulaire généralement visible : c'est un tissu ligneux dérivant d'anciens bois. Il correspond en gros à la vitrinite de la nomenclature européenne.  2, record 7, French, - anthraxylon

Record number: 7, Textual support number: 1 OBS

L'anthraxylon englobe le vitrain et une partie du clarain. En ce sens, il correspond en gros au «bright coal».  3, record 7, French, - anthraxylon

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

[An operation which consists on the] removal from a woven textile fabric of a protective coating (size) originally laid on warp threads in order to reduce mechanical wear during the weaving process.  2, record 8, English, - desizing

Record number: 8, Textual support number: 1 CONT

Desizing, irrespective of what the desizing agent is, involves impregnation of the fabric with the desizing agent, allowing the desizing agent to degrade or solubilise the size material, and finally to wash out the degradation products. The major desizing processes are : enzymatic desizing of starches on cotton fabrics, oxidative desizing, acid desizing and removal of water-soluble sizes.  3, record 8, English, - desizing

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Opération destinée à éliminer les produits d'encollage amylacés ou synthétiques déposés avant tissage sur les fils de chaîne pour renforcer leur résistance.  2, record 8, French, - d%C3%A9sencollage

Record number: 8, Textual support number: 1 OBS

désencollage : terme normalisé par l'AFNOR.  3, record 8, French, - d%C3%A9sencollage

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

... Chemicals resulting from partial decomposition or chemical breakdown of pesticides.  3, record 9, English, - degradation%20product

Record number: 9, Textual support number: 1 OBS

... degradation is the process of breakdown of large organic molecules into smaller ones until the material in question has been changed into inert material on the one hand and stabilized material on the other. The stabilized material is organic material that will not be further degraded or broken down by bacterial action.  4, record 9, English, - degradation%20product

Record number: 9, Textual support number: 2 OBS

degradation product: term used by Environment Canada.  5, record 9, English, - degradation%20product

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

La biodégradation exige la réalisation simultanée de plusieurs conditions : que le produit soit transformable par une espèce microbienne qui doit être présente à l'endroit et au moment voulu; que les micro-organismes puissent se multiplier [...]; que les produits de dégradation soient peu toxiques ou non toxiques.  2, record 9, French, - produit%20de%20d%C3%A9gradation

Record number: 9, Textual support number: 1 OBS

produit de dégradation : terme en usage à Environnement Canada.  3, record 9, French, - produit%20de%20d%C3%A9gradation

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

An indication of the expected concentration of a material in the environment, taking into account the amount initially present(or added to) the environment, its distribution, and the probable methods and rates of environmental degradation and removal, either forced or natural.  2, record 10, English, - predicted%20environmental%20concentration

Record number: 10, Textual support number: 1 OBS

predicted environmental concentration: term used by Environment Canada.  3, record 10, English, - predicted%20environmental%20concentration

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Une évaluation quantitative fondée sur l'exposition et les effets écologiques a été réalisée pour cette substance dans le cadre de l'évaluation par le poids de la preuve de son potentiel d'effets nocifs. Une concentration environnementale estimée (CEE) a tout d'abord été déterminée par analyse des voies d'exposition. Une concentration estimée sans effet (CESE) a été obtenue en divisant une valeur critique de toxicité (VCT), choisie à partir des données disponibles sur la toxicité, par un facteur d'évaluation.  2, record 10, French, - concentration%20environnementale%20estim%C3%A9e

Record number: 10, Textual support number: 1 OBS

concentration environnementale estimée : terme en usage à Environnement Canada.  3, record 10, French, - concentration%20environnementale%20estim%C3%A9e

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

A breaking machine for coal or ore [consisting] of a trommel screen with a heavy cast steel shell fitted internally with lifts which progressively raise and convey the coal and stone forward and break it.  2, record 11, English, - rotary%20breaker

Record number: 11, Textual support number: 1 OBS

As the material is broken the undersize passes through the apertures, so that excessive degradation does not occur.  2, record 11, English, - rotary%20breaker

Record number: 11, Textual support number: 2 OBS

Term standardized by ISO.  3, record 11, English, - rotary%20breaker

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Tambour rotatif en acier perforé de trous par lesquels passe le produit du calibre désiré.  1, record 11, French, - trommel%20rotatif

Record number: 11, Textual support number: 1 OBS

Le produit d'un calibre plus grand que ces trous est relevé par des raclettes placées à l'intérieur du tambour et retombe de façon que le composant plus tendre, par exemple : le charbon, puisse être brisé par l'impact et passer à travers les trous. Le composant le plus résistant, par exemple : la roche, peut ne pas se briser et peut ainsi parcourir le tambour parallèlement à son axe et être déchargé.  1, record 11, French, - trommel%20rotatif

Record number: 11, Textual support number: 2 OBS

trommel rotatif : terme normalisé par l'ISO.  3, record 11, French, - trommel%20rotatif

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

An organization in which failure to meet high standards of performance, proficiency and consistency could lead to loss of life or serious injury, operational mission failure, loss of, or damage to, high-value material and equipment, environmental degradation, significant collateral damage to civilian communities and populations, or negative political repercussions.  2, record 12, English, - high%2Dreliability%20organization

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

[Les] organisations à haute fiabilité se distinguent des autres principalement par le fait que les gens qui y travaillent sont plus sensibles et attentifs aux moindres signes de l'approche d'un changement ou d'un danger.  2, record 12, French, - organisation%20%C3%A0%20haute%20fiabilit%C3%A9

Record 12,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

The state wherein a device is connected to a system in the normal operational configuration and experiences below-normal, often periodic structural, mechanical, electrical, or environmental stresses for prolonged periods before being used in a mission.  1, record 14, English, - dormancy

Record number: 14, Textual support number: 1 CONT

Dormancy consists of a long, predominantly inactive, period where material and component degradation effects due to age and/or storage environment dominate.  1, record 14, English, - dormancy

Record 14,  Textual support,  French

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

The European Technology Exposure Facility(EuTEF) is a programmable, multifunctional, fully automated system. The modular architecture provides uniform interfaces for instruments-up to seven instrument modules can be accommodated and operated simultaneously. Five instruments are under development :-TRIBOLAB, a tribology testbed developed by INTA(E) ;-PLEGPAY, a plasma electron gun payload developed by LABEN(I) ;-MEDET, the Material Exposure and Degradation Experiment on TEF, developed by CNES/ESA/ONERA/University of Southampton;-DEBIE-2, a space debris detector developed by ESA(the first is flying on the Proba satellite) ;-FIPEX, the Flux Probe Experiment developed by the University of Stuttgart(D).  2, record 15, English, - plasma%2Delectron%20gun%20payload

Record number: 15, Textual support number: 1 OBS

Columbus precursor flights.  1, record 15, English, - plasma%2Delectron%20gun%20payload

Record 15,  Textual support,  French

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

The second means [after permeation] of chemical intrusion is degradation. This is the deterioration of the clothing material caused by the action of a chemical.  2, record 16, English, - degradation

Record number: 16, Textual support number: 2 CONT

Degradation -- is an indication of how long the gloves will last and is a reduction in physical strength of the gloves upon chemical contact.  3, record 16, English, - degradation

Record number: 16, Textual support number: 1 OBS

Degradation may change bulk properties such as tensile strength, or may result in the dissolution of small areas of the material. Until recently, there were few alternative methods for testing chemical intrusion. This has caused an overemphasis on the degradation properties of materials. Although important, degradation is not usually as crucial as permeation data.  2, record 16, English, - degradation

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 CONT

Dégradation - indication de la durée de service des gants, et de la réduction de la résistance physique des gants lors du contact avec un produit chimique.  1, record 16, French, - d%C3%A9gradation

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 CONT

Because of the wide range of chemicals used in the workplace today, there are no standards or even guidelines regarding the proper selection and use of chemical protective clothing.... Chemicals can gain access to the wearer or can affect clothing material in three ways. Permeation... degradation... [and] penetration.... The clothing material that prevents the intrusion of the hazardous material in question by these three methods is the ideal choice.  1, record 17, English, - chemical%20protective%20clothing

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 OBS

Le mot «vêtement» est utilisé couramment au pluriel.  3, record 17, French, - combinaison%20chimique

Record number: 17, Textual support number: 2 OBS

On trouve l'expression «combinaison de protection contre les produits chimiques» dans la source SSCAC-F, 1986, p. 189 (catalogue de la compagnie Safety Supply).  3, record 17, French, - combinaison%20chimique

Record number: 17, Textual support number: 3 OBS

Voir les fiches Termium pour les termes «chemical protection suit», «splash-proof goggles» et «protection suit».  3, record 17, French, - combinaison%20chimique

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 OBS

Factors that affect the ageing of building materials are UV light, temperature, and moisture from RH, precipitation and driving rain. UV radiation probably contributed most to the degradation of the coating and the substrate. Much research is done on the performance of materials due to ageing both by artificial ageing(accelerated) and natural weathering condition(field exposure) of the material. Ahola(1993) studied the effect of ageing on the water vapour permeability and found that the water vapour permeability decreased when exposed to the natural climate for one year. This was interpreted as due to loss of residual solvent, leaching out of low-molecular-mass components, viscous flow of a binder and migration of emulsifiers to the surface.  2, record 18, English, - degradation%20device

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Appareil destiné à provoquer la dégradation d'un matériau en vue de tester sa résistance aux intempéries.  2, record 18, French, - d%C3%A9gradeur

Record number: 18, Textual support number: 1 CONT

L'étape essentielle dans l'étude de la prévision de la durabilité est de créer un vieillissement artificiel dont les paramètres sont choisis de manière à accélérer l'évolution du polycarbonate en s'efforçant de ne pas faire apparaître de nouveaux processus n'existant pas en vieillissement naturel. Le vieillissement artificiel est un dégradeur UV avec cycle d'arrosage (weatheromètre humide) permet d'accélérer la dégradation photochimique combinée à l'action de l'humidité. L'expérience montre, pour le polycarbonate, une stabilisation des indices de dégradation après 3 000 heures d'exposition, dans les cas habituels.  3, record 18, French, - d%C3%A9gradeur

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

The ratio of the amounts of odd-carbon n-alkanes to those of even-carbon n-alkanes.  4, record 19, English, - carbon%20preference%20index

Record number: 19, Textual support number: 1 CONT

Carbon Preference Index (CPI). Generally the ratio of abundance of odd over even carbon number paraffins, specifically calculated over the C24-C34 range. Hydrocarbons derived predominantly from terrestrial sources and/or at low maturity exhibit a predominance of odd-numbered alkanes (resulting in a high CPI); this feature disappears with increasing maturation level (CPI approaches 1.0).  5, record 19, English, - carbon%20preference%20index

Record number: 19, Textual support number: 2 CONT

... case studies show that in ancient detrital sediment the predominance of the original odd n-alkanes of high molecular weight is preserved mainly in relatively shallow shales and silts, where degradation of kerogen has not yet started... With increasing maturity, and odd-even preference(also known as CPI : carbon preference index) of about 5 : 1 in shallow detrital material is reduced to around unity in the zone of oil formation, as a result of thermal degradation and the introduction of new alkanes, which dilutes the original odd-even predominance.  3, record 19, English, - carbon%20preference%20index

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Quotient des alcanes en chaîne droite ayant un nombre impair d'atomes de carbone et des alcanes en chaîne droite ayant un nombre pair d'atomes de carbone.  1, record 19, French, - indice%20pr%C3%A9f%C3%A9rentiel%20du%20carbone

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A process, after pulping, in which coloured ligneous material and other coloured matter remaining in the pulp are selectively removed in several stages with as little degradation of the pulp fibres as possible leaving whiter cellulosic constituents in the fibres.  1, record 20, English, - chemical%20pulps%20bleaching

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Procédé, suivant la cuisson, selon lequel les composés ligneux colorés, de même que les autres composés colorés demeurant dans la pâte, sont enlevés de façon sélective en plusieurs stades avec une dégradation minimale des fibres, laissant aux fibres leurs constituants cellulosiques blancs.  2, record 20, French, - blanchiment%20des%20p%C3%A2tes%20chimiques

Record number: 20, Textual support number: 1 OBS

On trouvera aussi le terme «blanchiment des pâtes chimiques» sous l'article 3.6.2 du «Cours de formation papetière» de Jean Vilars (code : VIPAP).  3, record 20, French, - blanchiment%20des%20p%C3%A2tes%20chimiques

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 OBS

Bleaching carries further the fiber purification accomplished in the pulping process. In the case of wood pulp, traces of lignin and other colored substances are removed or converted to colorless forms by bleaching. Most bleaching processes use an oxidizing agent (chlorine, a hypochlorite, chlorine dioxide, or hydrogen peroxide) ... Bleaching of wood pulp usually is carried out in stages (from three to six or seven separate operations) ...  3, record 21, English, - bleach%20plant

Record number: 21, Textual support number: 2 OBS

Bleaching : A process, after pulping, in which coloured ligneous material and other coloured matter remaining in the pulp are selectively removed in several stages with as little degradation of the pulp fibres as possible leaving whiter cellulosic constituents in the fibres.  4, record 21, English, - bleach%20plant

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 CONT

Dans l'usine de blanchiment [...] on trouvera, pour chaque stade, des épaississeurs [...] pour amener la pâte à la concentration voulue, des mélangeurs [...] pour mettre en contact la pâte et le réactif, des cuviers de blanchiment [...] dans lesquels séjourne la pâte à chaque stade, et des piles laveuses ou piles blanchisseuses [...] pour séparer la pâte du réactif.  1, record 21, French, - usine%20de%20blanchiment

Record number: 21, Textual support number: 1 OBS

On ne sait pas avec certitude ce qui donne à la pâte sa coloration [...] Il semble que la lignine, qui est [...] un corps blanc dans le spectre visible, subisse des transformations au cours de la cuisson, donnant des complexes colorants [...] Le blanchiment consiste donc à éliminer ces composants colorés.  1, record 21, French, - usine%20de%20blanchiment

Record number: 21, Textual support number: 2 OBS

Suivant la nature des pâtes papetières et leur utilisation, le blanchiment se fera en un ou plusieurs stades [...] Le blanchiment des pâtes à haut rendement consiste à décolorer la lignine par des agents oxydants ou réducteurs (...) Les réactifs les plus employés sont le peroxyde d'hydrogène et le peroxyde de sodium.  1, record 21, French, - usine%20de%20blanchiment

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

Polyaryl sulfone offers the unique combination of thermoplasticity and retention of structurally useful properties at 500°. This material is supplied in both pellet and powder form. Its thermoplastic nature allows it to be fabricated by injection molding or extrusion techniques on standard commercially available equipment. Polyaryl sulfone consists mainly of phenyl and biphenyl groups linked by thermally stable ether and sulfone groups. It is distinguished from polysulfone polymers by the absence of aliphatic groups, which are liable to oxidative attack. This aromatic structure gives it excellent resistance to oxidative degradation and accounts for its retention of mechanical properties at high temperatures.  1, record 22, English, - polyaryl%20sulfone

Record number: 22, Textual support number: 2 CONT

Polyaryl sulfone. A strong, hard, stiff plastic which can be used from -400 to +500°F, this polymer is used mostly in aerospace applications. ... This plastic is often used to upgrade other plastic applications with respect to temperature and to replace metals and ceramics in valve bodies, hydraulic seals, and bearings.  1, record 22, English, - polyaryl%20sulfone

Record number: 22, Textual support number: 3 CONT

Poly(aryl sulfone) was introduced in 1983 and is available from Amoco Performance Products under the trade names Radel A-100, A-200, and A-300. It is suitable for high technology applications, including such electrical/electronic parts as printed-circuit boards, snap-fit connectors, and lamp housings.  2, record 22, English, - polyaryl%20sulfone

Record 22,  Textual support,  French

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 CONT

As currently envisaged the engineered barriers can be briefly described as(a) The Waste Form : The wastes will be incorporated in materials which will immobilize the radionuclides and resist dissolution in groundwater.(b) The Containers : The waste form will be encapsulated in containers made of material that is resistant to degradation by groundwater.(c) The Buffer Material : The containers will be surrounded by a buffer material chosen to inhibit groundwater circulation around the containers and to retard the movement of radionuclides that may become dissolved in the groundwater.(d) The Repository....  2, record 23, English, - buffer%20material

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 CONT

Pour les déchets de longue durée de vie, B ou C, la solution retenue est l'enfouissement à grande profondeur [...] dans des formations géologiques choisies pour leur nature et leur configuration favorables à la maîtrise des transferts. L'isolement pendant une première période de quelques centaines d'années est assuré par des barrières artificielles : conditionnement du déchet, matériaux les entourant, dits matériaux tampon, ou barrière ouvragée [sic], et matériaux de bourrage des accès.  2, record 23, French, - mat%C3%A9riau%20tampon

Record 23,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 CONT

As regards the composite airframe, it will be interesting to see what criteria the FAA will use to evaluate fatigue life, especially since this material is known to exhibit measurable degradation through exposure to solar radiation.  3, record 25, English, - fatigue%20life

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 CONT

Quant au fait que l'avion soit réalisé en composite à fibres de carbone, il sera intéressant de voir quelle attitude adoptera la FAA pour l'évaluation de la durée de vie en fatigue, sachant que ce type de matériau subit une dégradation non négligeable sous l'effet des radiations solaires.  1, record 25, French, - dur%C3%A9e%20de%20vie%20en%20fatigue

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 CONT

Permeation is the most important indicator of the usefulness of a particular chemical protective material. Permeation is the process by which a liquid or gaseous chemical passes through the material at a molecular level.... The second means of chemical intrusion is degradation. This is the deterioration of the clothing material caused by the action of a chemical.... Finally, penetration is the flow of a liquid or gaseous chemical through closures, seams, pin-holes or similar types of openings.... All three of these intrusion methods must be taken into account when choosing protective materials.  1, record 26, English, - chemical%20intrusion

Record 26,  Textual support,  French

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

an image defect or degradation produced by accidental exposure of a photographic material to nonimage-forming light.  1, record 27, English, - light%20fog

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 DEF

défaut ou dégradation de l'image produite par une exposition accidentelle d'une surface sensible à une lumière qui nuit à la formation de l'image.  1, record 27, French, - voile%20accidentel

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 CONT

The conveyors move bulk material in solid column with minimum agitation or degradation.  1, record 28, English, - solid%20column

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 CONT

transporteur à raclettes. Transporteur constitué par une ou plusieurs chaînes (ou câbles) sans fin, actionnées par une roue motrice et sur lesquelles ont montées des plaques métalliques épousant la section d'une gouttière ou d'un couloir fixe à l'intérieur desquels elles entraînent la marchandise.  1, record 28, French, - couloir%20fixe

Record 28,  Textual support,  Spanish