air ionization
111Sulfur — This article is about the chemical element. For other uses, see Sulfur (disambiguation). phosphorus ← sulfur → chlorine …
112Meteoroid — A few shooting stars can be seen in this video from the ISS. A Perseid meteor (light streak somewhat to right of center of photo) and Milky Way. A meteoroid is a sand to …
113X-ray fluorescence — (XRF) is the emission of characteristic secondary (or fluorescent) X rays from a material that has been excited by bombarding with high energy X rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis,… …
114MHD generator — Energy portal The MHD (magnetohydrodynamic) generator or dynamo transforms thermal energy or kinetic energy directly into electricity. MHD generators are different from traditional electric generators in that they can operate at high tempera …
115Electron avalanche — An electron avalanche is a process in which a number of free electrons in a medium (usually a gas) are subjected to strong acceleration by an electric field, ionizing the medium s atoms by collision (called impact ionization), thereby forming new …
116Gas chromatography ion detector — Many GC detectors are ion detectors with varying methods of ionizing the components eluting from the GC s column.Principle of OperationAn ion detector is analogous to a capacitor or vacuum tube. It can be envisioned as two metal grids separated… …
117chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …
118rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
119star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …
120явление электрической дуги — [Интент] Параллельные тексты EN RU Electric arc phenomenon The electric arc is a phenomenon which takes place as a consequence of a discharge which occurs when the voltage between two points exceeds the insulating strength limit of the interposed …
