Now showing items 11-20 of 322
One‐Speed Neutron Transport in Two Adjacent Half‐Spaces
(The American Institute of Physics, 1964-05)
Using Case's method for solving the one‐speed transport equation with isotropic scattering, the Milne problem solution, the solution for a constant source in one half‐space, and the Green's function solution are obtained ...
Magnetohydrodynamics at Small Magnetic Reynolds Numbers
(The American Institute of Physics, 1962-04)
Two problems are considered, each of which represents a class of flows. In the first problem the motion is induced by passage of electric current through an incompressible viscous electrically conducting fluid contained ...
Singular Integral Equations
(The American Institute of Physics, 1966-12)
The integral equationP∫cK(ζ′,ζ)ζ′−ζφ(ζ′)dζ′=h(ζ)φ(ζ)+f(ζ)is shown to have simple solutions obtained by standard and elementary methods if h and K have appropriate analytic properties.
An image intensifier-scintillator device for determination of profiles and images of weak beams of ionizing particles or X-rays
(Elsevier, 1961)
An instrument for determining the shape and intensity distribution of particle and X-ray beams has been developed using an image intensifier tube together with a bundle of filaments of scintillator. A description of the ...
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 ...
Infrared Study of Lamellar Linking by Cilia in Polyethylene Single‐Crystal Mats
(The American Institute of Physics, 1969-10)
The infrared spectra of single‐crystal mats of physical mixtures of polyethylene and perdeuteropolyethylene show splittings of CH2 and CD2 bending and rocking modes which are smaller than those for the pure species. This ...
Addendum: One‐Speed Neutron Transport in Two Adjacent Half‐Spaces
(The American Institute of Physics, 1964-12)
The interface current for the problem of two half‐spaces with a constant source in one half‐space is obtained in closed form.
Determination of Barrier Heights from Low‐Temperature Heat‐Capacity Data
(The American Institute of Physics, 1963-09-01)
A method is presented by which barrier heights, in potential functions hindering the internal rotation of methyl groups, or spectroscopically inactive vibrational frequencies, can be obtained solely from thermal data for ...
Shock Tube Measurement of Pb I Lines
(The American Institute of Physics, 1966-07)
Oscillator strengths of lead atom spectral lines have been measured by observing the radiation emanating from gas samples heated to 10 000°K in a pressure‐driven shock tube. Shocks were produced by allowing hydrogen at ...