Now showing items 11-20 of 70
Magnetic hyperfine field structure of iron Urushibara type catalysts
(The American Institute of Physics, 1975-04)
We have utilized the Mössbauer effect to study the hyperfine field structure of iron Urushibara catalysts. The Mössbauer spectra of those catalysts prepared using zinc show that they consist of a mixture of magnetic and ...
Multi-mode holographic waveguide coupler
(Elsevier, 1975-10)
A double-exposure thick-holographic-grating waveguide coupler is described in which two waveguide modes can be excited with a single incident beam. Single-grating decouplers are also designed to selectively remove one of ...
What can we learn from semi-inclusive rapidity correlations?
(Elsevier, 1975-02-10)
We study a general formulation of semi-inclusive two-particle rapidity correlations for short-range models. We use it to compare with the 205 GeV NAL Bubble Chamber data different decay distributions for independently ...
Equation formulation considerations for efficient numerical modeling of semiconductor phenomena
(Elsevier, 1975-09)
This paper highlights the importance of equation formulation and associated programming efficiency with respect to modeling of semiconductor phenomena via numerical methods.Two numerical modeling efforts are developed in ...
Equivalence of the thin-grating decomposition and coupled-wave analysis of thick holographic gratings
(Elsevier, 1975-10)
The method of thin grating decomposition, which is derived entirely from thin-grating diffraction theory, is shown analytically to be equivalent to the coupled-wave solution of Maxwell's equations for a thick sinusoidal grating.
Calculation of spectroscopic amplitudes using boson expansion wave functions
(Elsevier, 1975-03-24)
A formalism is derived which allows the evaluation of spectroscopic amplitudes for two-nucleon transfer reactions. The transfer is assumed to take place between low-lying collective states described by boson expansion wave ...
Representations of molecular force fields. I. Ethane: Ab initio and model, harmonic and anharmonic
(The American Institute of Physics, 1975-12-01)
The quadratic and selected cubic force constants for ethane have been computed, using single determinant molecular orbital wavefunctions at the 4‐31G level, with a view to testing and extending model consistent force fields ...
A molecular orbital investigation of chemisorption. II. Nitrogen on tungsten (100) surface
(The American Institute of Physics, 1975-03-01)
The relative bonding energies of nitrogen chemisorbed at three symmetric sites on a W(100) surface, represented by finite arrays of tungsten atoms [L. W. Anders. R. S. Hansen, and L. S. Bartell, J. Chem. Phys. 59, 5277 ...
Waves in periodically structured media
(Elsevier, 1975-04)
By the finite element method, the problem of steady-state wave motion in a 2-dimensional periodic medium is formulated in the form of a matrix eigenvalue problem. A matrix modification converts the large, sparse linear ...