TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Fiber-optic cable that exhibits multimode propagation with a step index profile is thereby characterized as having higher attenuation and more time dispersion than the other propagation candidates.  5, record 1, English, - step%2Dindex

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Transparent... material, that is,... light-transmitting material with a refractive index such as that when used in intimate contact with other transparent materials, radiant power loss is reduced at interfaces during reflection, increasing transmission, avoiding scattering and reducing dispersion.  1, record 2, English, - index%2Dmatching%20material

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Substance appliquée à l'extrémité de deux fibres optiques de raccordement et dont l'indice de réfraction est quasi-identique à celui du cœur de ces fibres.  1, record 2, French, - substance%20adaptatrice%20d%27indice

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

To overcome pulse-spreading many of today's [optical] fibers have a core whose refractive index is graded, or shaped, to compensate for the different distances the rays travel. In such fibers the refractive index decreases with radial distance away from the center.... Graded-index fibers now being tested in the field reduce this dispersion by a factor of 25...  4, record 3, English, - graded%2Dindex

Record number: 3, Textual support number: 1 PHR

axial graded index, radial graded index  3, record 3, English, - graded%2Dindex

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Parmi les types de fibres actuellement disponibles, on distingue les fibres optiques «à saut d'indice» (ou à échelon d'indice) et les fibres «à gradient d'indice». Dans le premier cas, la variation radiale d'indice est brutale, à l'interface cœur-gaine, et la fibre est généralement constituée d'un cœur en silice dopée à l'oxyde de germanium, de phosphore, et d'une gaine en silice éventuellement dopée [...] à l'oxyde de bore. Ce sont ces oxydes dopants qui opèrent la différenciation des indices. Dans le second cas, la modification de l'indice de réfraction suit une loi parabolique : le rayon incliné s'éloignant de l'axe rencontre un milieu d'indice décroissant progressivement, ce qui a pour effet de le courber pour le ramener vers l'axe.  2, record 3, French, - %C3%A0%20gradient%20d%27indice

Record number: 3, Textual support number: 1 PHR

à gradient d'indice radial, à gradient d'indice axial  3, record 3, French, - %C3%A0%20gradient%20d%27indice

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Dispersion. Corps dans la masse duquel les composants liquides ou solides sont uniformément répartis : par exemple, le brouillard est une dispersion d'eau dans l'air; une mousse est une dispersion gazeuse dans un milieu liquide ou solidifié; un coulis de ciment est une dispersion de ciment et d'éléments solides dans l'eau; un verre teinté est une dispersion de pigments colorants dans le verre.  2, record 4, French, - indice%20de%20dispersion

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

[For spectroscopic instruments], dispersion of a material=dn divided by d [lambda] where n=refractive index and [lambda]=wavelength.  1, record 5, English, - dispersion%20of%20a%20material

Record number: 5, Textual support number: 1 OBS

The word "lambda" must be replaced by the corresponding Greek letter.  2, record 5, English, - dispersion%20of%20a%20material

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

[Pour des instruments spectroscopiques], la dispersion d'un produit = dn divisé par d [lambda] où n = l'indice de réfraction et [lambda] = la longueur d'onde.  1, record 5, French, - dispersion%20d%27un%20produit

Record number: 5, Textual support number: 1 OBS

Le mot «lambda» doit être remplacé par la lettre grecque correspondante.  2, record 5, French, - dispersion%20d%27un%20produit

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

[chromatic aberration could be reduced by combining a positive lens of a crown glass] with a negative lens of a flint glass(high refractive index and high dispersion).  2, record 6, English, - flint%20glass

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

deux types de verre entrent dans la composition des lentilles: le crown, peu dispersif, le flint, très dispersif.  1, record 6, French, - verre%20flint

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

The Environmental Quality Index(EQI) is an aggregation of seven key environmental pressure measures : greenhouse gas emissions, water quality, air quality, dispersion of toxic substances, soil degradation, waste disposal and urban sprawl.  1, record 7, English, - environmental%20quality%20index

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

[...] l'Irlande, et surtout la France ont un niveau de plaintes très fort par rapport à leur indice de qualité environnementale qui est assez bon. Ainsi la France est créditée d'un indice ESI [Environmental Sustainability Index - Indice Environnemental du Développement Durable] de 71, niveau nettement supérieur à la moyenne européenne de 65, et signe de systèmes environnementaux de bonne qualité [...]  5, record 7, French, - indice%20de%20qualit%C3%A9%20de%20l%27environnement

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Dispersion: To disperse Qi at a pressure point apply moving pressure with thumb of fingertip in a circular motion, or "pumping" in and out of the point .... (Acupressure for Common Ailments, 1991, p. 29).  1, record 8, English, - dispersion

Record number: 8, Textual support number: 2 CONT

Dispersion :... move the tip of your index finger to the point location. Press lightly, holding your finger in this position until you feel the muscles relax. Increase the pressure very slowly.(Acupressure for Everybody, 1991, p. 19).  1, record 8, English, - dispersion

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Dispersion : À l'aide de la pulpe du pouce, vous effectuez un massage profond du point, l'extrémité du pouce tourne mais ne glisse pas sur la peau. (Ma technique de santé, la digitopuncture, 1992, p. 14).  1, record 8, French, - dispersion

Record number: 8, Textual support number: 1 OBS

Avec la pulpe d'un doigt, vous appliquez une pression sur les points d'acupuncture, dans le sens inverse horaire et centrifuge [...] à un rythme plus lent que la tonification. (Dictionnaire pratique de l'acupuncture et de l'acupressure, 1980, p. 33).  1, record 8, French, - dispersion

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Mode pulling or scale factor effects are caused by changes in the index of refraction of the laser medium by dispersion effects of the laser gas. These effects degrade the stability and reproducibility of the RLG [ring laser gyro] scale factor, which is the relationship between the rotation rate(input) and beat frequency(output).  1, record 9, English, - index%20of%20refraction%20of%20the%20laser%20medium

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

Interactions laser-plasma dans le domaine relativiste [...] le comportement relativiste des électrons du plasma peut provoquer un phénomène très appréciable, car il permet d'accroître considérablement l'éclairement au foyer du laser; il s'agit de l'autofocalisation relativiste. Ce phénomène s'accompagne également du guidage du faisceau laser dans le plasma. L'autofocalisation du laser résulte d'une modification locale de l'indice de réfraction du milieu, induite par une augmentation de la masse des électrons libres du plasma. Dans ces conditions, le plasma se comporte comme une lentille convergente additionnelle qui s'oppose à la divergence naturelle du faisceau et produit une succession de «super foyers» où l'éclairement laser est encore accru d'un ordre de grandeur.  1, record 9, French, - indice%20de%20r%C3%A9fraction%20du%20milieu

Record number: 9, Textual support number: 1 PHR

Modification locale de l'indice de réfraction du milieu.  1, record 9, French, - indice%20de%20r%C3%A9fraction%20du%20milieu

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A measure of spread for nominal or ordinal variables.  2, record 10, English, - index%20of%20dispersion

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Tout nombre choisi pour donner une idée sommaire de l'étalement plus ou moins grand de l'ensemble des valeurs d'une série.  2, record 10, French, - indice%20de%20dispersion

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 OBS

[chromatic aberration could be reduced by combining a positive lens of a crown glass(low refractive index and low dispersion) with a negative lens of a flint glass]  2, record 11, English, - crown%20glass

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

En optique scientifique, verre de faible indice de réfraction et de constringence élevée.  2, record 11, French, - verre%20en%20crown

Record number: 11, Textual support number: 1 OBS

Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997.  3, record 11, French, - verre%20en%20crown

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

Graded-index multimode fiber contains a core in which the refractive index diminishes gradually from the center axis out toward the cladding. The higher refractive index at the center makes the light rays moving down the axis advance more slowly than those near the cladding. Also, rather than zig-zagging off the cladding, light in the core curves helically because of the graded index, reducing its travel distance. The shortened path and the higher speed allow light at the periphery to arrive at a receiver at about the same time as the slow but straight rays in the core axis. The result : a digital pulse suffers less dispersion. These fibers often become the physical medium for local-area networks.  2, record 12, English, - graded%2Dindex%20multimode%20fiber

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

pour comprendre la troisième famille, les fibres multimodes à gradient d'indice, on suppose qu'on sait réaliser deux lentilles, l'une classique, plan convexe, où le trajet optique à l'intérieur est de la forme ne(r), n étant l'indice et e l'épaisseur variable en fonction de la distance à l'axe r, et l'autre, plate, d'épaisseur e mais où l'indice, n varie en fonction de r de telle manière que n(r)e = ne(r). On en déduit aisément que ces deux lentilles focaliseront la lumière dans les mêmes conditions. La seconde, étant plate, peut être empilée avec des lentilles semblables qui réaliseront une convergence permanente des rayons. Si la loi d'indice est quasiment parabolique, des rayons issus d'un même point reconvergeront périodiquement aux mêmes endroits, réalisant un guidage parfait. De telles fibres présentent aujourd'hui des bandes passantes supérieures à 1 gigahertz.  2, record 12, French, - fibre%20multimode%20%C3%A0%20gradient%20d%27indice

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

Dispersion. The resolution of a complex electromagnetic radiation into components in accordance with some characteristic, for example, wavelength. The difference between the index of refraction of any substance for any two wavelengths is a measure of the dispersion for these wavelengths, called the coefficient of dispersion.  1, record 13, English, - coefficient%20of%20dispersion

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

D'une façon générale, et en atmosphère sèche, on estime que la diminution de la visibilité par unité de poids d'aérosol est proportionnelle au coefficient de dispersion des particules en suspension et à la concentration de ces particules dans l'atmosphère, mais inversement, proportionnelle à la masse spécifique et au rayon de ces particules.  1, record 13, French, - coefficient%20de%20dispersion

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 CONT

BOD removals are affected by: 1. Quantity and quality of waste. A definite ratio exists between the quantity of a waste applied to a trickling filter and the BOD removal efficiency.  3, record 14, English, - BOD%20removal

Record number: 14, Textual support number: 2 CONT

While the biological factor(such as temperature and waste water quality) are delineated by first-order BOD(biochemical oxygen demand) removal coefficient(K), the physical hydraulic regimes(such as mixing pattern and depth-width ratio of lagoon) are represented by dispersion index.  2, record 14, English, - BOD%20removal

Record number: 14, Textual support number: 3 CONT

The subsurface horizontal flow treatment units (HSS) allow, when organic loading (BOD) is relatively low, efficient suspended solids and BOD removals using a complex of aerobic and anaerobic bacterial activities.  4, record 14, English, - BOD%20removal

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 CONT

L'oxydation de la matière organique dans une lagune aérobie est analogue à l'épuration naturelle dans les cours d'eau. Si l'oxygène est maintenu en suffisance, l'élimination de la DBO peut être exprimée par une réaction du premier ordre [...]  1, record 14, French, - %C3%A9limination%20de%20la%20DBO

Record number: 14, Textual support number: 2 CONT

Les abréviations anglaise «BOD» et française «DBO» sont employées généralement de préférence aux expressions complètes correspondantes; c'est sans doute pourquoi l'expression "élimination de la demande biochimique en oxygène" n'apparaît dans aucun des documents consultés. Toutefois, une telle occurrence étant toujours possible, j'ai pris la liberté de l'ajouter comme synonyme.  5, record 14, French, - %C3%A9limination%20de%20la%20DBO

Record number: 14, Textual support number: 1 OBS

DBO₅.  6, record 14, French, - %C3%A9limination%20de%20la%20DBO

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

We describe the theoretical basis and practical details of a method for creating parametric images of the ratio of regional cerebral blood flow(rCBF) to volume(rCBV) from planar gamma-camera images following intravenous injection of any intravascular tracer and after correction for dispersion of the bolus before it arrives at the head. This ratio, which is the most sensitive index of the extent to which perfusion is being maintained by vasodilatation in patients with cerebro-vascular disease, indicates whether the limits of compensation have been, or are in danger of being, exceeded and identifies any ischaemic penumbra. Evidence is provided of the validity of the correction and the accuracy of calculation of the ratio. The range of normal values established is not significantly different from that previously reported using positron emission tomography. This technique has proved sufficiently sensitive to be clinically useful in patients with abnormalities of cerebral perfusion.  1, record 15, English, - ischaemic%20penumbra

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 CONT

Cette étude définit les seuils ischémiques, les divers types d'infarctus cérébraux, la pénombre ischémique, les modifications de la circulation sanguine à distance et les possibilités thérapeutiques.  1, record 15, French, - p%C3%A9nombre%20isch%C3%A9mique

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 OBS

Institut interaméricain de statistique  1, record 16, French, - indice%20binomial%20de%20dispersion

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 OBS

(Statistics).  1, record 17, English, - dispersion%20index

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 OBS

(Statistiques).  1, record 17, French, - param%C3%A8tre%20de%20dispersion

Record 17,  Textual support,  Spanish

Record number: 17, Textual support number: 1 OBS

Estadísticas.  1, record 17, Spanish, - %C3%ADndice%20de%20dispersi%C3%B3n

Record 18,  Textual support,  French

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 CONT

In the laboratory, particle analysis were made using polarized light microscopy. Confirmation of the presence and types of asbestos was made by dispersion staining optical microscopy.  1, record 19, English, - dispersion%20staining%20optical%20microscopy

Record number: 19, Textual support number: 1 OBS

[Electron Microscopy of Cotton. Preparation of Ultrathin Sections.... ] Expansion Technique.... ion Etching(Spit).... Preparation of Fibers.... Auxiliary Techniques. Dispersion Staining. Cotton fibers are embedded in a cargille medium, the refractive index of which is chosen such that its wavelength dispersion curve and that of the object intersect at...=580 nm. When viewed with a central stop in the microscope objective lens, the fiber then has a magenta color. For untreated cotton the refractive index of the medium has to be nD=1. 59, and for mercerized cotton 1. 54.  2, record 19, English, - dispersion%20staining%20optical%20microscopy

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 OBS

Proposition de M. Jacques Demers, traducteur de la section informatique de la division de Montréal (DGSCT).  1, record 19, French, - microscopie%20optique%20%C3%A0%20dispersion%20par%20coloration

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 OBS

(...) chromatic aberration could be reduced by combining a positive lens of a crown glass(low refractive index and low dispersion) with a negative lens of a flint glass.  1, record 20, English, - low%20dispersion%20glass

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 OBS

deux types de verre entrent dans la composition des lentilles: le crown, peu dispersif, le flint, très dispersif.  1, record 20, French, - verre%20peu%20dispersif

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 OBS

(...) chromatic aberration could be reduced by combining a positive lens of a crown glass(...) with a negative lens of a flint flass(high refractive index and high dispersion).  1, record 21, English, - high%20dispersion%20glass

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 OBS

deux types de verre entrent dans la composition des lentilles: le crown, peu dispersif, le flint, très dispersif.  1, record 21, French, - verre%20tr%C3%A8s%20dispersif

Record 21,  Textual support,  Spanish