Look up: quenching

1. Quenching
   [fluorescence] Quenching refers to any process which decreases the fluorescence intensity of a given substance. A variety of processes can result in quenching, such as excited state reactions, energy transfer, complex-formation and collisional quenching. As a consequence, quenching is often ...
   Found on http://en.wikipedia.org/wiki/Quenching_(
   
   
2. Quenching
   Rapid cooling. When applicable, the following more specific terms should be used: direct quenching,jog quenching, hot quenching, interrupted quenching, selective quenching, spray quenching and time quenching.The quenching media may be water, brine, oil, special solutions, salts or metals; and the in...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
3. quenching
   a crack formed as a result of thermal stresses produced by rapid cooling from a high temperature Category: Iron and steel industries • the process of terminating continuous or multiple discharges following a single ionising event in a Geiger-Mueller counter tube Category: Standards, m...
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. quenching
   1. The process of extinguishing, removing, or diminishing a physical property such as heat or light; e.g., the cooling of a hot metal rapidly by plunging it into water or oil. ... 2. In beta liquid scintillation counting, the shifting of the energy spectrum from a true to a lower energy; it is cause...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. quenching
   (kwench´ing) extinguishing, suppressing, or diminishing a physical property, as the rapid chilling of a hot metal by plunging it into cold liquid. in biochemistry, decrease of fluorescence from an excited molecule by interference that reduces the fluorescence intensity. the termination of sec...
   Found on http://www.encyclo.co.uk/local/21001
   
   
6. Quenching
   • (p. pr. & vb. n.) of Quench
   Found on http://thinkexist.com/dictionary/meaning
   
   
7. quenching
   (from the article `igneous rock`) ...and a low-calcium orthorhombic pyroxene. These cannot coexist with any of the feldspathoids (e.g., leucite and nepheline) or magnesium-rich ...
   Found on http://www.britannica.com/eb/a-z/q/6
   
   
8. quenching
   (from the article `photochemical reaction`) A good method, and one of the oldest in photochemistry, for determining both kinetic constants and mechanisms is the study of fluorescence quenching. ...
   Found on http://www.britannica.com/eb/a-z/q/6
   
   
9. quenching
   rapid cooling, as by immersion in oil or water, of a metal object from the high temperature at which it has been shaped. This usually is undertaken ... [4 related articles]
   Found on http://www.britannica.com/eb/a-z/q/6
   
   
10. Quenching
    In materials science, quenching is the rapid cooling of a workpiece to obtain certain material properties. It prevents low-temperature processes, such as phase transformations, from occurring by only providing a narrow window of time in which the reaction is both thermodynamically favorable and kin...
    Found on http://en.wikipedia.org/wiki/Quenching
    
    
11. Quenching
    Rapid cooling. When applicable, the following more specific terms should be used: direct quenching, fog quenching, hot quenching, interrupted quenching, selective quenching, spray quenching, and time quenching.
    Found on http://www.encyclo.co.uk/local/21038
    
    
12. quenching
    
    • the act of extinguishing; causing to stop burning
    • satisfy (thirst)
    • put out, as of fires, flames, or lights
    • electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device
    • suppress or crush completely
    • physics: reduce the degree of (luminescence or phosphorescence) in (excited molecules or...
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    • quenching
      process of terminating an ionization avalanche in a Geiger-M?ller counter to prevent continuous or multiple discharges following a single ionizing event
      Found on http://www.electropedia.org/iev/iev.nsf/
      
      
    • quenching
      the termination of current flow in an arm without commutation
      Found on http://www.electropedia.org/iev/iev.nsf/
      
      
    • quenching
      Type: Term Pronunciation: kwench′ing Definitions: 1. The process of extinguishing, removing, or diminishing a physical property such as heat or light, rapidly cooling a hot metal rapidly by plunging it into water or oil. 2. In beta liquid scintillation counting, the shifting of the energy spec...
      Found on http://www.medilexicon.com/medicaldictio
      
      
    • quenching
      Heat treatment used to harden metals. The metals are heated to a certain temperature and then quickly plunged into cold water or oil
      Found on http://www.talktalk.co.uk/reference/ency
      
      
    • Quenching
      Immersing steel in oil or water after heat treatment to control the rate of cooling and degree of hardening.
      Found on http://www.metalbulletin.com/Glossary.ht
      
      
    • Quenching
      [scrubber] In pollution scrubbers, sometimes hot exhaust gas is quenched, or cooled by water sprays, before entering the scrubber proper. Hot gases (those above ambient temperature) are often cooled to near the saturation level. If not cooled, the hot gas stream can evaporate a large portion...
      Found on http://en.wikipedia.org/wiki/Quenching_(