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HOLE CURRENT [7 records]

Record 1 2025-06-20

English

Subject field(s)
  • Visual Disorders
CONT

Optical coherence tomography(OCT) is the current gold standard in the diagnosis, staging, and management of macular holes... This quick, non-invasive imaging technique allows for evaluation of the macula in high resolution using reflected light, and helps your doctor differentiate a hole from other eye conditions with similar symptoms. No laboratory tests are needed in cases of idiopathic macular holes(those without a known cause).

French

Domaine(s)
  • Troubles de la vision
OBS

idiopathique : Dont la cause est inconnue.

Spanish

Save record 1

Record 2 2024-01-27

English

Subject field(s)
  • Lasers and Masers
CONT

In the homostructure laser, electrons... are injected across the... homojunction to varying distances...(Hole injection does not become important until much higher current levels are reached.)

PHR

Homostructure laser diode.

French

Domaine(s)
  • Masers et lasers
PHR

Diode laser à homostructure.

Spanish

Save record 2

Record 3 2008-08-29

English

Subject field(s)
  • Telephones
DEF

A rotary mechanism having a ten hole finger wheel which when wound up and released causes pulsing contacts to interrupt the line current and operate central office selecting equipment in accordance with the digit(1 thru 0) dialed.

French

Domaine(s)
  • Téléphones
DEF

Organe de numérotation comportant un disque à trous (disque ajouré) qui fait partie du poste téléphonique et émet des impulsions correspondant au numéro composé par l'abonné.

Spanish

Campo(s) temático(s)
  • Teléfonos
DEF

En un sistema conmutado, método convencional de marcado que crea una serie de pulsos para identificar a la estación llamada.

Save record 3

Record 4 2005-09-13

English

Subject field(s)
  • Eye Surgery
CONT

Current endocapsular phacoemulsification techniques allow for removal of the nucleus through this small hole, leaving a deep and well-defined capsular cul-de-sac with greater visibility of the capsulotomy edges which helps ensure placement of both haptics within the capsular bag.

CONT

Six cases of capsular bag distension after capsulorhexis, endophacoemulsification, and posterior chamber intraocular lens (IOL) implantation are presented.

CONT

The increasingly popular techniques of capsulorhexis and ’in-the-bag’ phacoemulsification have significantly improved IOL [intraocular lens] fixation.

French

Domaine(s)
  • Chirurgie de l'œil
OBS

phacoémulsification endosacculaire : proposition inspirée de «technique endosacculaire», terme relevé dans EMOPH, 1993, vol. 4, nº 21250C50, p. 8.

Spanish

Save record 4

Record 5 2004-09-09

English

Subject field(s)
  • Semiconductors (Electronics)
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.

Key term(s)
  • hole current
  • hole flux

French

Domaine(s)
  • Semi-conducteurs (Électronique)

Spanish

Campo(s) temático(s)
  • Semiconductores (Electrónica)
DEF

Corriente causada por el movimiento de los electrones hacia los huecos (lagunas), creando nuevos huecos en los semiconductores.

Save record 5

Record 6 2004-02-04

English

Subject field(s)
  • Atomic Physics
  • Semiconductors (Electronics)
CONT

Electron trap generation in the gate oxide is a major reliability problem, since it can cause stress-induced leakage current and oxide breakdown. In this paper, traps are created either by the substrate hole injection or the Fowler-Nordheim injection. The attention is focused on how detrapping affects the generated traps. The detrapping is achieved by different techniques, including electron-hole recombination, and field or thermally assisted tunnelling.

Key term(s)
  • de-trapping

French

Domaine(s)
  • Physique atomique
  • Semi-conducteurs (Électronique)
OBS

L'injection et le dépiégeage des charges s'effectue en des temps de l'ordre de 100 ms [...].

Spanish

Save record 6

Record 7 2002-07-31

English

Subject field(s)
  • Welding - Various Processes
CONT

The conventional method for starting such a weld was to drill a pilot hole to serve as the initial keyhole, carefully align the welding torch over the pilot hole, adjust the standoff distance, and then turn on the torch at full power.... The new starting technique does not depend on precise manual alignment. The welding torch is positioned with no more than the usual care. As the torch begins to move along the weld, the welding current is gradually increased toward the full operating level, causing the depth of the weld to increase gradually until the keyhole is formed.... The standoff is controlled by the automatic-voltage-control portion of the welding equipment. At the end of a circumferential weld, the torch can continue a short distance past the starting point to overlap and thereby complete the weld in the starting transition region.

French

Domaine(s)
  • Procédés de soudage divers
OBS

Voir la fiche soudage par trou de serrure.

Spanish

Save record 7

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