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emitter

[i′mid·ər]
(computer science)
A time pulse generator found in some equipment, such as a card punch.
(electronics)
A transistor region from which charge carriers that are minority carriers in the base are injected into the base, thus controlling the current flowing through the collector; corresponds to the cathode of an electron tube. Symbolized E. Also known as emitter region.

emitter

A device radiating in usable visible, IR (infrared), or RF (radio frequency) wavelengths.

emitter

One side of a bipolar transistor. See collector.
References in periodicals archive ?
For example, a gray iron cupola generally emits PM, carbon monoxide (CO), NO and [SO.
If the regional air pollution is termed "Marginal" with respect to Clean Air Act compliance, a "major source" is one that emits 110 tons per year (TPY).
From our results we cannot explain the overt discrepancies between mFPIA and EMIT in renal and cardiac recipients.
If an "open molder," under the "worst possible" assumptions for spray-up, emits 16% of its resin usage as styrene, it would hit the max.
We now use Emit benzodiazepine immunoassay as a prescreening procedure with respect to flunitrazepam.
A two-stroke lawn mower emits as much smog-forming volatile organic compound pollution as 72 new cars driving at 30 mph.
By varying the size of the dots, researchers can tune the crystals to emit different wavelengths.
For instance, 5-atom dots emit ultraviolet light, whereas 31-atom clusters emit infrared light, which is at the other end of the spectrum.
However, the biodiesel plants that produce biodiesel do emit GWG because they require heating input usually from natural gas, which is not renewable and emits CO(2), and they also require electricity from local utilities, which emit CO(2), and finally the chemical processes uses 10% methanol (wood alcohol) usually supplied from sources outside the U.
For any given temperature and wavelength, it specifies exactly how much radiation an idealized thermal source known as a black body will emit.
As each atom zips through the space between paired mirrors, photons already bouncing back from the mirrors stimulate it to emit a photon (SN: 12/24&31/94, p.