beam-type magnetron
51Maser — For other uses, see Maser (disambiguation). A hydrogen radio frequency discharge, the first element inside a hydrogen maser (see description below) A maser is a device that produces coherent electromagnetic waves through amplification by… …
52Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
53Coating — is a covering that is applied to the surface of an object, usually referred to as the substrate. In many cases coatings are applied to improve surface properties of the substrate, such as appearance, adhesion, wetability, corrosion resistance,… …
54List of accidents and incidents involving military aircraft, pre-1950 — This is a list of notable accidents and incidents involving military aircraft grouped by the year in which the accident or incident occurred. For more exhaustive lists, see the [http://www.baaa acro.com/ Aircraft Crash Record Office] or the [http …
55William C. Brown — (May 22, 1916 ndash; February 3, 1999) was an American electrical engineer who helped to invent the crossed field amplifier in the 1950s and also pioneered microwave power transmission in the 1960s.Brown received his BSEE from Iowa State… …
56Memristor — Type Passive Working principle Memristance Invented Leon Chua (1971) First production HP Labs (2008) Electronic symbol …
57Compactron — 12AE10 Compactron tube (a dual pentode), made by GE Compactrons are electronic vacuum tube units which contain arrangements of diodes, triodes, or pentodes in multiple combination arrays, as well as high or low voltage and power types. Contents …
58V-1 flying bomb — Buzzbomb redirects here. For the song by the Dead Kennedys, see Buzzbomb (song). For other uses, see V1 (disambiguation). V 1 flying bomb Fieseler Fi 103 Flakzielgerät 76 (FZG 76) V 1 flying bomb …
59Tunnel magnetoresistance — Magnetic tunnel junction (schematic) The Tunnel magnetoresistance (TMR) is a magnetoresistive effect that occurs in magnetic tunnel junctions (MTJs). This is a component consisting of two ferromagnets separated by a thin insulator. If the… …
60Physique médicale — La physique médicale est une branche de la physique appliquée qui regroupe les applications de la physique en médecine. Elle concerne essentiellement les champs de la radiothérapie, de l imagerie médicale, de la médecine nucléaire et de la… …
