Escaped yield, definition

Okazaki et al. showed some examples for spin-manipulation [14] (1) Because the yield of spin adducts produced from escape radicals was found to be decreased by the resonance microwave irradiation, the yield of cage (escape) products was found to be increased (decreased) with a high pressure liquid chromatography (HPLC) technique. (2) Because the resonance microwave irradiation induces a transition between two definite nuclear spin-levels, the enrichment of this nuclear spin could be realized. Indeed, the ratio of was... 

Excited electronic states thus give rise to photon emission with a yield smaller than unity on the other hand, absorption of these photons produces, in turn, excited electronic states, also with a yield smaller than unity. Consequently, if one neglects the possibility for the photons to escape from the solid, a quasi-equilibrium is established between these two forms of energy between which the near totality of the incident energy is recovered. However, every conversion from one form to the other is accompanied by a release of thermal energy. If the irradiated system does not use the energy in either of these forms for certain definite purposes, such as chemical reaction for instance, the totality of this energy will be finally converted into heat. 

Fractionating effects of the escape process can now be calculated analytically if specific assumptions are made about the time dependence of the major (constituent 1) inventory Ni— that it is either replenished as fast as it escapes (constant inventory model), or is lost without replenishment along with the minor atmospheric species (Rayleigh fractionation model). In both cases the inventories N2 of minor species, here the noble gases, are assumed to be in the atmosphere at to and are lost without replenishment during the escape episode. For Rayleigh fractionation, adopted for this discussion. Equations (2), (3), and (7) and the definitions Fi = -dNi/dt and F2 = -dN2/dt may be combined and integrated, in the limit of Xi = 1, mc > m2 > mi, and mc > m2, to yield... 

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