Engineering topics
Saffren, M. M.
Publications and source records attributed to Saffren, M. M..
Temperature dependence of the accommodation coefficient of liquid-helium film.
We have determined the accommodation coefficient, gamma, of a helium film from 1.15 to 4 K by measuring the time constant of a rotating superconducting Nb sphere levitated in vapor and covered with a saturated helium film. The conventional assumption of the phenomenological theory of superfluidity, that the order parameter psi vanishes at the free surface of helium II, implies that gamma, is unity and independent of temperature. We find that gamma, is nearly unity above the lambda point, suffers an abrupt drop close to T-lambda, and gradually levels off to the value of about 0.8 at lower temperatures.
Order of levels of symmetric Hamiltonians. I.
Bound levels of particle in symmetric potential, discussing ordering by symmetry types and eigenfunctions behavior for cubic and tetrahedral symmetry
Order of levels of symmetric Hamiltonians, part 1
Order of energy levels of symmetric Hamiltonians
Evaluation of Coulomb integrals of continuum functions
Numerical evaluation of Coulomb integrals of continuum functions
New expressions for the energy density and momentum flux of an electromagnetic field
New expressions for energy density and momentum flux of electromagnetic field
Interaction of intense electromagnetic beams with electron beams
Interaction of intense electromagnetic beams with electron beams
The rotating superconductor. part iii- the superelectrons as an incompressible charged fluid
Rotating superconductor - superelectron as incompressible charged fluid
The rotating superconductor. part ii- the free energy
Calculation of free energy of stationary, rotating and isolated superconductors with and without external applied magnetic field