TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The flow of electrons from cathode to anode of a velocity-modulated tube as a succession of electron groups rather than as a continuous stream.  2, record 1, English, - bunching

Record number: 1, Textual support number: 1 OBS

bunching: term officially approved by the Electronics and Telecommunications Terminology Committee.  3, record 1, English, - bunching

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

groupement : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).  2, record 1, French, - groupement

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Instrument used to monitor and quantify the products eluted from a chromatography column. Techniques used are based on the physical, chemical or biological properties of the molecules and may involve prior conversion by chemical or enzymic means to produce a coloured or fluorescent complex. Physical methods include the use of spectrophotometers, colorimeters, spectrophotofluorometers, refractometers, polarimeters, etc.  3, record 2, English, - chromatographic%20detector

Record number: 2, Textual support number: 1 CONT

Biological molecules may be monitored using enzyme-linked reactions specific for the required class of compound. Such detectors often include a flow cell so that the fluid passes continuously from the column through the detector. Several types of detector have been developed specifically for use with gas/liquid chromatographs. These include flame ionization and electron capture devices or, where information is required on the exact structure of the compounds, a mass spectrometer. Many are linked to microprocessors for control of the chromatographic analysis, as well as direct computation of results.  3, record 2, English, - chromatographic%20detector

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Appareil servant à déceler, à révéler la présence d'un corps dans un échantillon.  2, record 2, French, - d%C3%A9tecteur

Record number: 2, Textual support number: 1 CONT

Les détecteurs en chromatographie [...] mettent en évidence les constituants du mélange. Un bon détecteur doit être stable, sensible, linéaire, pratique d'emploi et ne doit pas altérer les séparations réalisées par la colonne.  2, record 2, French, - d%C3%A9tecteur

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Difference in potential between cathode and anode during conduction, caused by the electron flow through the tube resistance(IR drop).  2, record 3, English, - anode%20voltage%20drop

Record number: 3, Textual support number: 1 OBS

Anode voltage drop: term used with reference to glow-discharge, gold-cathode tubes.  3, record 3, English, - anode%20voltage%20drop

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A current resulting from the flow of electron and holes pairs that recombine in the space charge region of the forward biased p-n junction.  1, record 4, English, - generation%20current

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Considérons un matériau P mis en contact avec un matériau de type N [...] Si on applique le potentiel négatif du côté P, on accroît la barrière de potentiel à l'interface P-N [...] Même si les électrons sont en grand nombre du côté N, ils ne peuvent plus passer dans la zone P. Seuls les électrons minoritaires de la zone P peuvent traverser le dispositif, mais ils sont en très petit nombre et leur injection par l'électrode est considérablement limitée par la hauteur de barrière. On observe alors un courant inverse très faible appelé courant de génération. On vient de réaliser un dispositif redresseur qui satisfait au critère 3 [...] et qui constitue la base des détecteurs SC [semiconducteur] à petit gap.  1, record 4, French, - courant%20de%20g%C3%A9n%C3%A9ration

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A current resulting from the flow of electron and holes pairs that recombine in the space charge region of the forward biased p-n junction.  1, record 5, English, - recombination%20current

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Courant qui résulte du flux des électrons et des paires de trous se recombinant dans la charge d'espace de la jonction p-n alimentée dans le sens passant.  2, record 5, French, - courant%20de%20recombinaison

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

The movement of a free electron from atom to atom leaves a hole in the atom it left. This hole is quickly filled by another free electron. As this movement is transmitted throughout the conductor, an electric current is created from the negative to the positive. At the same time, the "hole" has been moved backward in the conductor as one free electron after another takes its place in a sort of chain reaction. "Hole flow" is from positive to negative. Current flow in a transistor, then, may be either electron movement or hole flow, depending on the type of material, and this determines the type of transistor it is as well.  2, record 6, English, - hole%20flow

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 DEF

Corriente causada por el movimiento de los electrones hacia los huecos (lagunas), creando nuevos huecos en los semiconductores.  1, record 6, Spanish, - corriente%20de%20retenci%C3%B3n

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Coils placed around the neck of a cathode ray tube to deflect the electron stream. The magnetic field created by the flow of current through the deflection coils causes the electron to deviate from its normal path.  2, record 7, English, - deflection%20yoke

Record number: 7, Textual support number: 1 CONT

Two pairs of deflection coils, called deflection yokes, mounted externally around the neck of the picture tube produce the horizontal and vertical deflection of the beam.  3, record 7, English, - deflection%20yoke

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Assure le balayage par déviation du faisceau [...] par le contrôle du champ magnétique créé par des bobines.  3, record 7, French, - bloc%20de%20d%C3%A9viation

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

En los tubos de rayos catódicos, es un conjunto de bobinas, colocado en el cuello del tubo para causar la desviación del haz electrónico; puede consistir en dos juegos de bobinas, uno para la desviación horizontal y otro para la vertical.  1, record 7, Spanish, - yugo%20de%20desv%C3%ADo

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A thermionic device which emits and controls electron flow within a glass or ceramic structure from which gas or air has been removed.  2, record 8, English, - vacuum%20tube

Record number: 8, Textual support number: 1 CONT

Hybrid construction with both solid state and vacuum tube construction.  3, record 8, English, - vacuum%20tube

Record number: 8, Textual support number: 1 OBS

They were used in the electronic circuits of the first computers. Nowadays they are used, for example, in cathode ray tubes.  4, record 8, English, - vacuum%20tube

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Bulbe de verre de grandes dimensions dans lequel est réalisé un vide poussé.  2, record 8, French, - tube%20%C3%A0%20vide

Record number: 8, Textual support number: 1 CONT

[Le tube électronique est un] composant électronique formé d'une ampoule contenant un vide suffisant; tube à vide.  3, record 8, French, - tube%20%C3%A0%20vide

Record number: 8, Textual support number: 1 OBS

Ils étaient utilisés pour les circuits électroniques des premiers ordinateurs. Actuellement on les emploie, entre autres, pour des tubes à rayons cathodiques.  4, record 8, French, - tube%20%C3%A0%20vide

Record 8,  Textual support,  Spanish

Record number: 8, Textual support number: 1 DEF

Tubo de cristal vaciado de gas que contiene electrodos y rejas para controlar el flujo de electrones.  1, record 8, Spanish, - tubo%20de%20vac%C3%ADo

Record number: 8, Textual support number: 1 OBS

Fue utilizado en los circuitos electrónicos de los primeros ordenadores. Actualmente se emplea, por ejemplo, en los tubos de rayos catódicos.  1, record 8, Spanish, - tubo%20de%20vac%C3%ADo

Record number: 8, Textual support number: 2 OBS

tubo de vacío: término y definición extraídos del CAPITAL Business Dictionary con la autorización de LID Editorial Empresarial.  3, record 8, Spanish, - tubo%20de%20vac%C3%ADo

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Thermionic or Electron Impact Detector. In 1957, Ryce and Bryce described a sensitive ionization gauge based on the ionization potentials of vapors. It comprised a filament, a grid, and a plate. The potential difference between the filament and grid accelerated electrons which may ionize any gas in their path. If the grid potential is maintained at a level insufficient to ionize the helium carrier gas... no current flows in the plate circuit. If a potential difference of 18 V is maintained between the filament and the grid, compounds of lower ionization potential in the helium will be ionized and the positive ions produced will yield a cathode current, the current noted being a measure of the ion concentration. Into the modified ionizing chamber, operated at reduced pressure, a small fraction of the column effluent gas stream(less than 0. 5%) was allowed to flow into the gauge through a controlled leak. Over a 0. 02-l. 5 mm Hg pressure range, the sensitivity was approximately proportional to the pressure, and sensitivities in the range of 10[ minus superscript 12] mole were claimed.  1, record 9, English, - electron%20impact%20detector

Record 9,  Textual support,  French

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A hypothetical mechanism for coupling electron transfer to ATP synthesis... proposed in 1961 by Peter Mitchell [who] suggested that the flow of electrons through the system of carrier molecules drives positively charged hydrogen ions, or protons, across the membranes of chloroplasts, mitochondria and bacterial cells. As a result an electrochemical proton gradient is created across the membrane.... The synthesis of ATP is driven by a reverse flow of protons down the gradient.  3, record 10, English, - chemiosmotic%20theory

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

La théorie chemiosmotique développée par Mitchell l'a conduit à proposer pour les différents composants de la chaîne de transfert d'électrons dans la membrane du thylakoïde une structure où les donneurs d'électrons (Z, Y) seraient vers l'intérieur et les accepteurs (Q, X) vers l'extérieur [...]  1, record 10, French, - th%C3%A9orie%20chemiosmotique

Record number: 10, Textual support number: 1 OBS

Préférer la graphie «chémiosmotique» avec un accent aigu.  2, record 10, French, - th%C3%A9orie%20chemiosmotique

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

Instrument for measuring electron temp., ion temp., ionic composition and charged particle density. has 3 circular grids and one circular collector. A voltage, varied by steps, is applied to one of the grids and retards the flow of electrons  1, record 11, English, - retarding%20potential%20analyser

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish