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activation energy
(redirected from Activation enthalpy)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
activation energy
Etymology: L, activus, active
the energy required to convert reactants to transition-state species or an activated complex that will spontaneously proceed to products.

activation
the process of activating.

activation analysis
a method of analyzing the content of elements in samples of biological material. The sample is bombarded with nuclear particles and the elements in it measured by the radiation emitted by their radioactive daughter products. Called also radioactivation analysis.
activation energy
the difference in energy between the ground state of the reactants in a reaction and the point of maximum energy or transition state of the reactions. Usually lowered by enzyme catalysts.
activation factor
activation unit
the combination of complement (C4, C2 and C3) that binds to the antigen-antibody complex in the initial reaction step in the classical pathway of complement activation. See also complement.


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As well as the 452 metals abstracts, the issue includes - in line with the new editorial policy of including original papers on all of the major material groups Key Topics Covered: * Original Papers - Metals * Defect Investigation of Plastically Deformed Al 5454 Wrought Alloy Using PADBS and Electrical Measurements * Activation Enthalpy of Dislocation Migration in Aircraft (Aerospace) (2024) Alloy by Positron Spectroscopye * Effect of Irradiation Dose on AlCu6.
The area under the tan [delta] curve is related to the activation enthalpy of relaxation of the backbone motion (29).
] and the activation enthalpy [DELTA]H expressed in Eq 6 seem to be the material characteristics of the blend.
 
 
 
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