gain de surface

См. также в других словарях:

• Gain D'antenne — Pour les articles homonymes, voir Gain. Le gain d antenne est le pouvoir d amplification passif d une antenne. C est le rapport entre la puissance rayonnée dans le lobe principal et la puissance rayonnée par une antenne de référence, isotropique… …   Wikipédia en Français

• Surface charge — is the electric charge present at an interface, for instance on the surface of a semiconductor material, or for example, on the surface of a protein in water.There are multiple factors generating surface charge. First of all, surface charge… …   Wikipedia

• Gain (projection screens) — Gain is a property of a projection screen, defined by how much brightness is visible from the screen s centre when the viewer is looking at that point on axis to the centre. Gain is controlled by diffusion of the screen, and governs the degree… …   Wikipedia

• Surface photovoltage — (SPV) measurements are a widely used method to determine the minority carrier diffusion length of semiconductors. Since the transport of minority carriers determines the behavior of the p n junctions that are ubiquitous in semiconductor devices,… …   Wikipedia

• Gain d'antenne — Pour les articles homonymes, voir Gain. Le gain d antenne est le pouvoir d amplification passif d une antenne. C est le rapport entre la puissance rayonnée dans le lobe principal et la puissance rayonnée par une antenne de référence, isotrope ou… …   Wikipédia en Français

• Surface Deployment and Distribution Command — US Military Surface Deployment and Distribution Command Surface Deployment and Distribution Command shoulder sleeve insignia Active …   Wikipedia

• To gain ground — ground ground (ground), n. [OE. ground, grund, AS. grund; akin to D. grond, OS., G., Sw., & Dan. grund, Icel. grunnr bottom, Goth. grundus (in composition); perh. orig. meaning, dust, gravel, and if so perh. akin to E. grind.] 1. The surface of… …   The Collaborative International Dictionary of English

• Vertical-cavity surface-emitting laser — The vertical cavity surface emitting laser (VCSEL; [v ɪxl] ) is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge emitting semiconductor lasers (also in plane lasers)… …   Wikipedia

• Vertical-external-cavity surface-emitting-laser — A vertical external cavity surface emitting laser (VECSEL) is a small semiconductor laser similar to a vertical cavity surface emitting laser (VCSEL). VECSELs are used primarily as near infrared devices in laser cooling and spectroscopy, but have …   Wikipedia

• Round-trip gain — refers to the laser physics, and laser cavitys (or laser resonators).It is gain, integrated along a ray, which makes a round trip in the cavity.At the continuous wave operation, the round trip gain gain exactly compensate both, the output… …   Wikipedia

• Body surface area — In physiology and medicine, the body surface area (BSA) is the measured or calculated surface of a human body. For many clinical purposes BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose …   Wikipedia