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The n th‐order diatomic potential energy functions W ( T ) n and W ( V ) n are constructed, by the integration of the virial theorem − W − R d W / d R = T and 2 W + R d W / d R = V , respectively, using the n th‐order truncations of the perturbational λ=1−( R e / R ) power series...
Linear response theory is applied to mechanical energy relaxation phenomena of polymer solids below the glass transition temperature. The relaxation modulus is related to time‐correlation functions of ’’forces.’’ The time‐correlation functions are approximately calculated in the paper...
A self‐consistent formalism is developed that dynamically determines the thermodynamic properties of ionic clusters, based upon a many‐body potential, without an a p r i o r i designation of the equilibrium structures. The system studied is an aggregate consisting of a single closed shell K +...
We present a method for obtaining continuous differential cross sections for molecular collisions from trajectories with initial conditions selected by Monte Carlo methods. It is a moment method and we represent the differential scattering cross section in terms of the moments of the normalized...
The internal viscosity or friction coefficient η̂ κ for normal mode κ of an N ‐monomer Rouse‐type ring polymer is defined microscopically using the Mori projection technique and is then computed within the simplest (trilinear) mode coupling approximation. One finds that η̂ κ =ζγ y...
A mass spectrometric study of the positive ions in the positive column of dc glow discharges in pure CO 2 and CO 2 gas laser mixtures has been undertaken to determine the nature of the ions and to elucidate the ion kinetics. Results are presented over the ranges 2–20 torr, 3–15 mA cm −2 and...
In this investigation, we characterize three types of oxygen stimulated emission from organic chromophores embedded in polymer matrices: (i) singlet oxygen annihilation fluorescence from the S 1 state of the chromophore; (ii) specific sensitization of excimer fluorescence in the stimulated...
The molecular CO + 2 cations were generated in the X 2 Π g ground state by the Penning ionization reaction with neon metastable atoms. The vibrational and rotational distribution of the product ions was observed by the laser fluorescence method. These experiments demonstrate the possibility of...
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