Now showing items 31-40 of 75
Energy‐Dependent Boltzmann Equation in the Fast Domain
(The American Institute of Physics, 1970-01)
This work presents some aspects of the static energy‐dependent Boltzmann equation in plane geometry using a continuous‐energy formulation. In a first part, solutions are found for a class of synthetic separable (but ...
Hyperfine Structure of Thallium Iodide and an Upper Limit for the Electric Hexadecapole Moment of the Iodine Nucleus
(The American Institute of Physics, 1970-08-15)
The hyperfine structure of thallium iodide has been studied in the J = 3J=3 and J = 4J=4 rotational states in an attempt to observe a nuclear electric hexadecapole effect. This study was carried out on a high‐resolution ...
Predictions and tests of the hypothesis of limiting fragmentation
(Elsevier, 1970-08-17)
It is shown that the hypothesis of limiting fragmentation predicts the way in which the cross sections for production of fast particles in the laboratory should scale with beam energy. The agreement with experiment is ...
Some Results on the Nonoscillation of Salt Fingers
(The American Institute of Physics, 1970-12)
Salt‐finger convection in water discovered by Stommel, Arons, and Blanchard is discussed, and conditions under which the principle of exchange of stabilities holds are given.
Dynamic Behavior of a Gas Bubble in Viscoelastic Liquids
(The American Institute of Physics, 1970-10)
The dynamic characteristics of a gas bubble situated in a viscoelastic fluid of three‐parameter Oldroyd model is analytically investigated. Consideration is given to the influence of the thermodynamic process of the gas ...
ESR Studies of Phosphorescent Corannulene; Evidence for Pseudorotation
(The American Institute of Physics, 1970-06-01)
Electron spin resonance (ESR) spectra have been recorded for the lowest triplet state of corannulene. The experiments were performed by ultraviolet irradiation of the molecule in rigid glass solutions at 77 and 15°K. In ...
Interpretation of the vibrational behavior of methyl and substituted methyl radicals perturbed by alkali halide molecules
(Elsevier, 1970-12)
The observed vibrational behavior of free and alkali halide-perturbed methyl radicals in low temperature inert matrices is rationalized on the basis of the relaxation of the molecular charge distribution of the methyl ...
SU(4)⊃SU(2)⊗SU(2)SU(4)⊃SU(2)⊗SU(2) Projection Techniques
(The American Institute of Physics, 1970-11)
The twofold multiplicity problem associated with the Wigner supermultiplet reduction SU(4)⊃SU(2)⊗SU(2)SU(4)⊃SU(2)⊗SU(2) is resolved by spin‐isospin projection techniques analogous to the angular momentum projection technique ...
Double‐Photon Absorption and Delayed Fluorescence of Some Aromatic Hydrocarbons in Solution
(The American Institute of Physics, 1970-11-15)
On the structure of high-energy two-body non-diffractive reactions
(Elsevier, 1970-10-15)
We consider the structure of two-body scattering amplitudes, concentrating on those reactions in which the "internal" quantum numbers exchanged correspond to the quantum numbers of a single particle, different from those ...