depletion boundary

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• Depletion — may refer to: Depletion (accounting), an accounting concept Depletion region, a concept of semiconductor physics Depletion width, a concept of semiconductor physics Grain boundary depletion, a mechanism of corrosion Oil depletion, the declining… …   Wikipedia

• Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …   Wikipedia

• Grain boundary depletion — is a mechanism of corrosion, when grain boundaries are depleted of some elements, changing their properties.Intergranular corrosion and selective leaching often involve grain boundary depletion mechanisms …   Wikipedia

• Tropospheric ozone depletion events — During springtime in the polar regions, unique photochemistry convertsinert halide salt ions (e.g. Br ) into reactive halogenspecies (e.g. Br atoms and BrO) that deplete ozone in the boundary layerto near zero levels. Since their discovery in the …   Wikipedia

• IC 2391 — Observation data (J2000.0 epoch) Constellation Vela …   Wikipedia

• Brauner Zwerg — Ein Brauner Zwerg ist ein astronomisches Objekt, das mit einer Masse zwischen 13 und 75 Jupitermassen eine Sonderstellung zwischen Planeten und Sternen einnimmt. Gleiches gilt für die im Inneren ablaufenden Prozesse. Braune Zwerge sind… …   Deutsch Wikipedia

• Compilation of atmospheric dispersion models — Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere. The dispersion models are used to estimate or …   Wikipedia

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• List of atmospheric dispersion models — Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere. Contents 1 U.S. Environmental Protection… …   Wikipedia

• Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium

• p-n junction — A silicon p–n junction with no applied voltage. A p–n junction is formed at the boundary between a P type and N type semiconductor created in a single crystal of semiconductor by doping, for example by ion implantation, diffusion of dopants, or… …   Wikipedia