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Displaying 69101 - 69125 of 74343

Ising critical exponents in real fluids: An experiment

July 5, 1976
Author(s)
R Hocken, Michael R. Moldover
We report precise optical measurements of the equations of state of Xe, SF_6, and CO2 very near their critical points (|T - T_c|/T_c 5 x 10^-5). We find that the critical exponents of these fluids in this region are close to the exponents calculated from

Core level shifts of rare-gas atoms implanted in the noble metals

July 1, 1976
Author(s)
R E. Watson, J F. Herbst, J W. Wilkins
By means of soft-x-ray photoemission Citrin and Hamann have observed core level shifts of Ne, Ar, Kr, and Xe atoms implanted in the noble metals and have constructed a theoretical model with which to interpret the results. We describe calculations

Electron mean free paths for free-electron-like materials

June 15, 1976
Author(s)
David R. Penn
Mean free paths for electrons in bulk jellium are calculated for electrons with energies from a few hundred to a few thousand eV and for values of r s for 1.5 to 5 where r s is the average distance between valence electrons measured in units of the Bohr

Cationic reactions of methylene cyclobutane

June 1, 1976
Author(s)
Anzor Mikaia, Evgenyi Finkelstein, Valentin Vdovin, Nikolay Nametkin
Dimerization, alkylation and metathesis reactions are studied for methylenecyclobutane in a benzene solution in the presence of catalysts

Flame Spread of Carpet Systems Involved in Room Fires.

June 1, 1976
Author(s)
K M. Tu, S Davis
This study was designed to test the hypothesis that given a situation where a chair or other item of furniture becomes the first item to burn in a room (providing the ceiling and walls are noncombustible), there is little reason to expect involvement of

Improved Microwave-discharge Source for uv Photoemission

April 1, 1976
Author(s)
Theodore Vorburger, B Waclawski, D Sandstrom
A microwave-discharge uv light source has been improved to yield significant photon fluxes at 26.9 and 40.81 eV. In order to optimize the 26.9-eV (NeII) and 40.81-eV (HeII) radiation, the discharge was operated at 2.5 Pa (0.019 Torr) in an external

Core Level Shifts in the 3d Transition Metals and Tin

March 15, 1976
Author(s)
R E. Watson, M L. Perlman, J F. Herbst
We present estimates of various contributions to the free-atom-metal binding-energy shifts, Δ}E B, for the 2>s and 2p core levels of teh iron series elements and, for comparison, the 3 d s/2 level of Sn. Our results indicate that the sharp break in the

4f Excitation Energies in Rare-Earth Metals: Relativistic Calculations

February 15, 1976
Author(s)
J F. Herbst, R E. Watson, J W. Wilkins
We describe calculations of 4f electron binding energies for the rare-earth metals. Relativistic Hartree-Fock calculations for atomic configurations most closely approximating those of the metals are initially performed, and crystal potentials are
Displaying 69101 - 69125 of 74343
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