Now showing items 61-70 of 1043
Non-local exchange correlation energy in quasi-two-dimensional electron layers
(Elsevier, 1985)
We introduce a simple, non-local approximation for the exchange-correlation energy of an inhomogeneous electron gas. This approximation is shown to be quantitatively accurate in several important limiting cases. The method ...
Unsteady flow in rotating drums using laser Doppler velocimetry
(Springer-Verlag, 1988-01)
Non-destructive measurements by laser Doppler velocimetry is employed to study unsteady flow in a hollow drum filled with liquid. The drum is suddenly accelerated from rest or is suddenly decelerated from a steady rotation ...
The variational problem and background fields in renormalization group method for lattice gauge theories
(Springer-Verlag, 1985-06)
We consider the action of a lattice gauge theory on a space of regular gauge field configurations with fixed averages, and we prove that there exists a minimum of this action. The minimum is unique up to gauge transformations. ...
Role of numerical simulations in the semiconductor heterostructure technology using molecular beam epitaxy
(Elsevier, 1986)
The present and potential role of computer simulations in understanding the growth and fabrication of heterostructure interfaces grown by molecular beam epitaxy (MBE) is discussed. The important atomistic processes involved ...
The strong CP problem in orbifold compactifications and an SU(3)[circle times operator]SU(2)[circle times operator]U(1)n model
(Elsevier, 1988-06-30)
We point out that the anomalous U(1)'s arising frequently in nonstandard embeddings of orbifold compactification is the needed Peccei-Quinn symmetry which can be broken at the intermediate scale. We show this in an orbifold ...
Modeling of an electron cyclotron resonance heated mirror plasma for highly charged ion and soft x‐ray sources
(The American Institute of Physics, 1988-08-01)
A model is described for predicting equilibrium ion charge state distributions and soft x‐ray emissions for highly charged ion plasmas confined in magnetic mirrors. Such a plasma would be generated and sustained with ...
An interacting segment model of molecular electric tensor properties: Application to dipole moments, polarizabilities, and hyperpolarizabilities for the halogenated methanes
(The American Institute of Physics, 1981-05-01)
A previously developed interacting segment model [ISM—see J. Chem. Phys. 67, 2109 (1977)] is applied to a full‐scale treatment of the electric dipole moments, isotropic and anisotropic polarizabilities, and hyperpolarizabilities ...
SEASAT geoid anomalies and the Macquarie Ridge complex
(Elsevier, 1985-03-30)
The seismically active Macquarie Ridge complex forms the Pacific-India plate boundary between New Zealand and the Pacific-Antarctic spreading center. The Late Cenozoic deformation of New Zealand and focal mechanisms of ...
Diagnosis of exercise-induced left bundle branch block at rest by scintigraphic phase analysis
(Springer-Verlag, 1986-03)
Accurate diagnosis of diseases of the ventricular conducting system is essential for their appropriate therapy. some conduction abnormalities, such as exercise-induced left bundle branch block (EX-LBBB), are not apparent ...
Magnetohydrodynamic flow and heat transfer about a rotating disk with suction and injection at the disk surface
(Elsevier, 1988)
This paper studies the effects of an axial magnetic field on the flow and heat transfer about a porous rotating disk. Using modern quasi-Newton and globally convergent homotopy methods, numerical solutions are obtained for ...