coefficient of graphite

coefficient of graphite
коэффициент графита

Англо-русский строительный словарь. 2013.

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  • Coefficient de vide — Le coefficient de vide, ou coefficient de réactivité à vide, est une grandeur utilisée en physique des réacteurs nucléaires. Elle caractérise l évolution de la réactivité du réacteur en cas de diminution de la densité du fluide caloporteur. Un… …   Wikipédia en Français

  • Coefficient modérateur — Le coefficient modérateur ou le coefficient thermique modérateur, ou encore coefficient de vide, est une grandeur utilisée en physique des réacteurs nucléaires. Elle caractérise l évolution de la réactivité du réacteur en cas de diminution de la… …   Wikipédia en Français

  • Nuclear graphite — Core graphite from the Molten Salt Reactor Experiment Nuclear graphite is any grade of graphite, usually electro graphite, specifically manufactured for use as a moderator or reflector within nuclear reactors. Graphite is an important material… …   Wikipedia

  • Void coefficient — In nuclear engineering, the void coefficient (more properly called void coefficient of reactivity ) is a number that can be used to estimate how much the reactivity of a nuclear reactor changes as voids (steam bubbles) form in the reactor… …   Wikipedia

  • Positive temperature coefficient — (PTC) refers to materials that experience an increase in electrical resistance when their temperature is raised. Materials which have useful engineering applications usually show a relatively rapid increase with temperature, i.e. a higher… …   Wikipedia

  • SL-1 — The SL 1, or Stationary Low Power Reactor Number One, was a United States Army experimental nuclear power reactor which underwent a steam explosion and meltdown in January 1961, killing its three operators. The direct cause was the improper… …   Wikipedia

  • Chernobyl disaster — This article is about the 1986 nuclear plant accident in Ukraine. For other uses, see Chernobyl (disambiguation). Chernobyl disaster …   Wikipedia

  • Nuclear meltdown — Three of the reactors at Fukushima I overheated, causing core meltdowns. This was compounded by hydrogen gas explosions and the venting of contaminated steam which released large amounts of radioactive material into the air.[1] …   Wikipedia

  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • Friction — For other uses, see Friction (disambiguation). Classical mechanics …   Wikipedia

  • Plain bearing — Crankshaft plain bearing shells A plain bearing, also known as a plane bearing[1] or a friction bearing[2] is the simplest type of bearing, comprising just a bearing surface and no rolling elem …   Wikipedia


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