Now showing items 71-80 of 507
Energy Expectation Values and the Integral Hellmann–Feynman Theorem: H2+ Molecule
(The American Institute of Physics, 1968-08-01)
It is by now well known that the integral Hellmann–Feynman (IHF) theorem has little quantitative utility for chemically interesting problems, although the formalism potentially affords a ready physical interpretation of ...
Correlation of Rates of Intramolecular Tunneling Processes, with Application to Some Group V Compounds
(The American Institute of Physics, 1960-03)
A method is presented whereby the WKB expression for tunneling frequencies permits correlation of these frequencies for members of homologous series of molecules. The necessary data required are the tunneling rate for one ...
Quantum Calculations of the Velocity Dependence of the Differential and Total Cross Sections for Elastic Scattering of Molecular Beams
(The American Institute of Physics, 1961-02)
The partial wave treatment (phase shift analysis) of the elastic scattering of molecular beams [J. Chem. Phys. 33, 795 (1960)] is applied to the calculation of the velocity dependence of the differential and total cross ...
On the observation of parity admixtures with perturbed angular correlations
(Elsevier, 1968-05-24)
A new parity test is proposed using combined electric and magnetic perturbation of the angular correlation of two gamma rays, one pure and one mixed. The experiment requires a measurement of the asymmetry of the coincidence ...
Total radiances and equivalent widths of isolated lines with combined Doppler and collision broadened profiles
(Elsevier, 1968-08)
Analytical expressions for total radiances and equivalent widths of isolated spectral lines with combined Doppler and collision broadened profiles are presented for isothermal paths.
Application to the exact theory of the pairing model to some even isotopes of lead
(Elsevier, 1963-06-01)
Effect of Wire Cross Section on the First Pulse of an Exploding Wire
(The American Institute of Physics, 1965-09)
The optimum discharge in an exploding wire circuit is described. In this type of discharge, the stored energy of the capacitor discharges completely during the first pulse of the exploding wire phenomenon. It was determined ...
General Exact Solutions for the Diffusion Equations of Momentum, Heat, and Mass in Spiral Viscous Flows
(The American Institute of Physics, 1964-06)
The diffusion equations of momentum, heat, and mass are solved for spiral flows of incompressible viscous fluids. General exact solutions for the steady‐state distributions of velocity, temperature, and concentration are ...
Magnetostrictive readout of spark chambers in a magnetic field
(Elsevier, 1968-07-01)
Magnetic fields of moderate strength may cause errors of order 0.5% in measurements made with magnetostrictive spark chamber readouts.