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2. Carbon–hydrogen bond activation - Wikipedia

   en.wikipedia.org/wiki/Carbon–hydrogen_bond...

   Carbon–hydrogen bond activation. In organic chemistry and organometallic chemistry, carbon–hydrogen bond activation ( C−H activation) is a type of organic reaction in which a carbon–hydrogen bond is cleaved and replaced with a C−X bond (X ≠ H is typically a main group element, like carbon, oxygen, or nitrogen ).

3. Neutron activation - Wikipedia

   en.wikipedia.org/wiki/Neutron_activation

   Neutron activation is the process in which neutron radiation induces radioactivity in materials, and occurs when atomic nuclei capture free neutrons, becoming heavier and entering excited states. The excited nucleus decays immediately by emitting gamma rays, or particles such as beta particles, alpha particles, fission products, and neutrons ...

4. Activation energy - Wikipedia

   en.wikipedia.org/wiki/Activation_energy

   In the Arrhenius model of reaction rates, activation energy is the minimum amount of energy that must be available to reactants for a chemical reaction to occur. [1] The activation energy ( Ea) of a reaction is measured in kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol). [2] Activation energy can be thought of as the magnitude ...

5. iOS - Wikipedia

   en.wikipedia.org/wiki/IOS

   iOS (formerly iPhone OS) [6] is a mobile operating system developed by Apple Inc. exclusively for its smartphones. It was unveiled in January 2007 for the first-generation iPhone, [7] launched in June 2007. It is the operating system that powers many of the company's mobile devices, including the iPhone.

6. Activation - Wikipedia

   en.wikipedia.org/wiki/Activation

   Activation, in chemistry and biology, is the process whereby something is prepared or excited for a subsequent reaction. Chemistry [ edit ] In chemistry , "activation" refers to the reversible transition of a molecule into a nearly identical chemical or physical state, with the defining characteristic being that this resultant state exhibits an ...

7. Microsoft Product Activation - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Product_Activation

   Microsoft Product Activation is a DRM technology used by Microsoft Corporation in several of its computer software programs, most notably its Windows operating system and its Office productivity suite. The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to ...