Now showing items 31-40 of 80
Spectroscopic studies of Lewis acid‐base complexes. III: Vibrational frequencies, assignments and normal coordinate analyses for isotopic varieties of phosphine borane and trifluorophosphine borane
(John Wiley & Sons, Ltd., 1974-04)
Vibrational spectra of the two Lewis complexes, phosphine borane, PH 3 BH 3 , and trifluoro‐phosphine borane, PF 3 BH 3 , have been investigated for several isotopic species preserving C 3 v symmetry. New assignments ...
Equivalent f and j factors for condensation inside horizontal smooth and finned tubes
(Elsevier, 1974)
For condensation inside horizontal smooth and finned tubes, the equivalent f and j factors can be employed to correlate the pressure drop and heat transfer performance, respectively. They are empirically found to be ...
Numerical studies of exploding‐wire plasmas
(The American Institute of Physics, 1974-04)
A plasma created by exploding a thin lithium wire in a vacuum is analyzed using a magnetohydrodynamic (MHD) model. The two‐temperature MHD equations including finite thermal conductivity and electrical resistivity are ...
Pressure dependence of the roton spectrum in liquid helium
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1974-06)
We suggest consistency checks on neutron scattering data on liquid helium under pressure. The theoretically calculated static structure function S(k|P) leads to pressure dependence of the roton gap, momentum, and curvature ...
Interpreting data from polarized proton beams
(Elsevier, 1974-08-18)
The reactions pp --> pp and pp --> [Delta]++n with polarized beam and/or polarized target are currently under investigation at the Argonne ZGS. We discuss how to interpret various measured quantities in terms of ...
On the self‐adjointness of the Lorentz generator for (: ϕ4 :)1 + 1
(The American Institute of Physics, 1974-06)
An alternative proof to that provided by Jaffe and Cannon of the self‐adjointness of the local Lorentz generator for the (: ϕ4 :)1 + 1 quantum field theory is given. The proof avoids the use of second‐order estimates and ...
The University of Michigan neutron time-of-flight facility
(Elsevier, 1974)
The details of the neutron time-of-flight instrumentation associated with The University of Michigan 83" cyclotron are described and examples of capabilities of the instrument are given.
Supertransferred Hyperfine Fields at Sb5+ in Insulating Ferrites: Effects of Local Order and Ion‐Specific Properties
(The American Institute of Physics, 1974-03-01)
The supertransferred hyperfine fields at Sb5+ in LiFe5O8LiFe5O8, CoFe2O4CoFe2O4, and YIG have been determined using Sb Mössbauer spectroscopy. In contrast to CoFe2O4CoFe2O4, NiFe2O4NiFe2O4, and YIG, the small, average ...
A simple ``camera'' for high energy beams
(The American Institute of Physics, 1974-03)
By incorporating an x‐ray intensifying screen into a standard 10×12.7 cm Polaroid film back, we have been able to reduce the exposure time required to obtain a beam profile drastically. The modified film backs have been ...
Exciton surface states in molecular crystals
(The American Institute of Physics, 1974-07-01)
A new Hamiltonian partition method, used previously for cooperative excitations in molecular crystals, has been adopted for the treatment of surface exciton states in molecular crystals. The formation of surface excitons ...