Now showing items 1-10 of 55
Decay characteristics of 84Se
(Elsevier, 1968-11)
The nuclide 84Se has been identified among the fission products of 235U. The selenium fraction was obtained by solvent extraction from HBr into 2,6-dimethyl-4-heptanone. The radiations were studied by [beta]- and [gamma]-ray ...
The emission of K-X-rays in slow neutron fission of 233U, 235U, and 239Pu
(Elsevier, 1969-10)
Energy‐Moment Methods in Quantum Mechanics
(The American Institute of Physics, 1967-10-15)
Three quantum‐mechanical computational techniques based on energy moments, μk = ∫ dqψ*(q)Hkψ(q)μk=∫dqψ*(q)Hkψ(q), and semimoments, νk(q′) = [Hkψ(q)]q = q′νk(q′)=[Hkψ(q)]q=q′, are formulated. The μ method, which employs the ...
Energy‐Distribution Function for Hot Atoms Produced by Nuclear Transformations
(The American Institute of Physics, 1964-09-15)
The energy‐distribution function for hot atoms produced by nuclear transformations is examined in terms of the fraction of the initial hot‐atom energy. Energy dependent and independent asymmetric scattering is specifically ...
Triuranium heptaoxides: Heat capacities and thermodynamic properties of [alpha]- and [beta]-U3O7 from 5 to 350[deg]K
(Elsevier, 1962)
Low temperature heat capacities have been measured by adiabatic calorimetry on two phases with composition UO2.33 designated [alpha]- and [beta]-U3O7. They were obtained by oxidation of UO2 at 135 and 165[deg]C, respectively. ...
A Closed General Solution of the Probability Distribution Function for Three‐Dimensional Random Walk Processes
(The American Institute of Physics, 1961-02)
A closed general solution of the probability distribution function for three‐dimensional random walk processes is derived. In addition: (1) For the particular case of equal‐length displacements, the exact solution is ...
Energy Expectation Values and the Integral Hellmann–Feynman Theorem: H2+ Molecule
(The American Institute of Physics, 1968-08-01)
It is by now well known that the integral Hellmann–Feynman (IHF) theorem has little quantitative utility for chemically interesting problems, although the formalism potentially affords a ready physical interpretation of ...
The integral Hellmann-Feynman theorem applied to hydrogen peroxide
(Springer-Verlag, 1967-01)
Heteroaromatic polymers. The polybithiazoles Presented in part at the Symposium on Novel Polymer Structures, 145th National Meeting, American Chemical Society, New York, September 1963. 1
(John Wiley & Sons, Inc., 1965-09)
The polycondensation of dithioÖxamide with bifunctional aromatic bromomethyl ketones affords a series of poly-4,4′-diaryl-2,2′-bithiazoles. These polymers exhibit outstanding thermal stability. They are characteristically ...