Now showing items 31-40 of 45
Reflection of Electrons by Standing Light Waves: A Simple Theoretical Treatment
(The American Institute of Physics, 1967-03-15)
The reflection of electrons by standing light waves, i.e., the stimulated Compton scattering proposed by Kapitza and Dirac, has been treated by applying the Born approximation. The probability that an electron will be ...
Influence of Nonbonded Interactions on Molecular Geometry and Energy: Calculations for Hydrocarbons Based on Urey—Bradley Field
(The American Institute of Physics, 1967-11-15)
A modified Urey—Bradley potential energy function comprised of quadratic terms for bond stretches, bond‐angle bends, and torsional displacements together with analytical expressions for pairwise nonbonded interactions was ...
Production of Monodisperse Sprays
(The American Institute of Physics, 1967-04)
A technique for producing monodisperse sprays is described. The technique makes use of Rayleigh's criterion for the breakup of capillary jets by mechanically vibrating a number of uniform size capillary needles arranged ...
Wigner Method in Quantum Statistical Mechanics
(The American Institute of Physics, 1967-05)
The Wigner method of transforming quantum‐mechanical operators into their phase‐space analogs is reviewed with applications to scattering theory, as well as to descriptions of the equilibrium and dynamical states of ...
Structure of Turbulence in the Boundary Layer near the Wall
(The American Institute of Physics, 1967-09)
Previous measurements of space‐time correlations of turbulent wall pressure and velocity in the boundary layer were extended to include space‐time correlations between the wall pressure and all three velocity components ...
Bremsstrahlung of Slow Electrons in Neutral Gases and Free‐Free Absorption of Microwaves
(The American Institute of Physics, 1967-06)
Bremsstrahlung of nonrelativistic electrons in a neutral gas is investigated including the polarization and exchange effects. The intensity and spectrum of the bremsstrahlung and of the induced dipole radiation are obtained ...
Matrix Elements for Configuration d4 in a Weak Octahedral Field Using Racah Methods
(The American Institute of Physics, 1967-11-15)
Employing Racah algebra, the general formula for calculating the matrix elements of a weak crystalline field for configuration dn has been derived. Applying this formula the matrix elements for d4 (including spin—orbit ...
Magnetic Interactions for the Electronic Configuration d5
(The American Institute of Physics, 1967-04-15)
Applying Horie's method, the matrix elements of spin—other‐orbit interaction for configuration d5 have been calculated. The magnetic interaction energy has also been calculated for Mn++ by means of perturbation theory. It ...
Construction of Invariant Scalar Amplitudes without Kinematical Singularities for Arbitrary-Spin Nonzero-Mass Two-Body Scattering Processes
(1967-09-09)
The relativistic transition amplitude for any two-body reaction involving only particles of nonzero mass but arbitrary spin is decomposed in terms of scalar amplitudes that are regular functions in the space of scalar ...
Generation of Giant Pulses from a Neodymium Laser with an Organic‐Dye Saturable Filter
(The American Institute of Physics, 1967-04)
There has been much recent interest in the production of high‐peak power laser pulses by regeneration switching. Organic dyes have been used as saturable filters for both the ruby (cyanine dyes) and neodymium (a polymethine ...