Now showing items 71-80 of 337
Relativistic Effects in Chemical Bonding: The H2+ Molecule
(The American Institute of Physics, 1967-04-01)
The behavior of the electron in the ground state of the hydrogen molecular ion is examined using the Dirac theory. Since the resulting set of equations is not readily separable, the variational theorem is applied to obtain ...
Green's Distributions and the Cauchy Problem for the Multi‐Mass Klein‐Gordon Operator
(The American Institute of Physics, 1962-11)
Explicit forms of the Green's functions (which are to be regarded as distributions in the sense of Schwartz) for the multi‐mass Klein‐Gordon operator in n‐dimensional spaces are presented. The homogeneous Green's functions ...
Small 10 kG Pulsed Magnet
(The American Institute of Physics, 1968-11)
A small magnet pulsed at 2000 cps is described. The method of construction by interlacing spirals of Teflon and copper is discussed. The field produced is through a volume of approximately 1 cc. The total volume of the ...
Variation of Permittivity with Electric Field in Perovskite‐Like Ferroelectrics
(The American Institute of Physics, 1961-05)
A model is considered for the case of polycrystalline ferroelectrics in which each crystallite is presumed to behave according to a free‐energy function of the type formulated by A. F. Devonshire [Advances in Phys. 3, 85 ...
Velocity Dependence of the Differential Cross Sections for the Scattering of Atomic Beams of K and Cs by Hg
(The American Institute of Physics, 1962-11-01)
Measurements of the velocity dependence of the angular intensity distribution of potassium and cesium beams scattered by a crossed beam of mercury are presented. The alkali beam was velocity selected, with a triangular ...
Molecular Beam Measurement of the Hyperfine Structure of 85Rb19F
(The American Institute of Physics, 1966-11-15)
Radio‐frequency transitions between the hfs levels of the J=1 rotational state in 85Rb19F have been observed using a molecular beam electric resonance spectrometer. From these spectra we have obtained values for the constant ...
Molecular Beam Measurement of the Hyperfine Structure of 133Cs19F
(The American Institute of Physics, 1967-11-15)
The magnitudes and signs of the hyperfine interaction constants for 133Cs19F in the J = 1, v = 0, 1, 2 states have been measured with a molecular beam electric resonance spectrometer. The results for v = 0 are: eQ1q1 = ...
Free Convection in a Rotating Medium
(The American Institute of Physics, 1968-09)
Numerical techniques have been used to study natural convection in a fluid subjected to axial rotation. Axisymmetrical flows were studied in two different geometries for a variety of rotational speeds. For case I (R1 = ...
Reflection of Strong Blast Waves
(The American Institute of Physics, 1964-08)
The reflection of strong point‐source blast waves is studied using the continuum concept of flow of ideal gases. Methods of obtaining the upper and lower bounds as well as a Taylor series expansion of the position of the ...