electron valve
41Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
42Mass-to-charge ratio — Charge to Mass ratio SI quantity dimension: M/(I⋅T) SI unit: kg/C other units: Th The mass to charge ratio ratio (m/Q) is a physical quantity that is widely used in the electrodynamics of c …
43electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… …
44Hydraulic analogy — The electronic–hydraulic analogy (derisively referred to as the drain pipe theory by Oliver Heaviside) is the most widely used analogy for electron fluid in a metal conductor. Since electric current is invisible and the processes at play in… …
45Cardiac muscle — Dog Cardiac Muscl …
46Plasma window — The plasma window (not to be confused with a plasma shield [cite news| last = Shiga| first =David| coauthors =| title =Plasma bubble could protect astronauts on Mars trip| work =| pages =| language =| publisher =NewScientist| date =2006 07 17|… …
47Spintronics — (a neologism meaning spin transport electronics [1][2]), also known as magnetoelectronics, is an emerging technology that exploits both the intrinsic spin of the electron and its associated magnetic moment, in addition to its fundamental… …
48Secondary emission — is a phenomenon where additional electrons, called secondary electrons, are emitted from the surface of a material when an incident particle (often, charged particle such as electron or ion) impacts the material with sufficient energy. The number …
49Лучевой тетрод — Условное графическое изображение лучевого тетрода. А  анод, К  катод, С1  управляющая (первая) сетка, С2  экранирующая (вторая сетка) Лучевой тетрод  четырёхэлектродная экранированная лампа, в которой д …
50Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …
