Results 251 to 260 of about 4,491,995 (297)

Core level shift calorimetry

Calphad, 1984
Abstract The binding energies of deep lying core electrons of closed inner atomic shells are sensitive to changes in chemical bonding. For metallic systems the shifts of core level binding energies as function of the alloy composition can be related to partial solution energies of the alloy and therefore these shifts can be used to determine the ...
openaire   +1 more source

Hearing Level, Hearing Loss, and Threshold Shift

The Journal of the Acoustical Society of America, 1958
To the Editor: The following excerpt from our recent paper in theA. M. A. Archives of Industrial Healthentitled, "The Medical Principles of Monitoring Audiometry" (Davis, H.; Hoople, G., and Parrack, H. O.:A. M. A. Arch. Indust. Health17:1-20, 1958), speaks for itself. "Hearing Level, Hearing Loss, and Threshold Shift.—The familiar term 'hearing loss'
Hallowell Davis, Gordon D. Hoople, Horace O. Parrack   +2 more
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The shifting level in traumatic lipohaemarthrosis

Injury, 1972
The recognition of lipohaemarthrosis in an injured joint can be of value because it proves the presence of a fracture that may otherwise go unrecognized. Lipohaemarthrosis is indicated by the presence of a fluid level on radiography. A variant of this radiological sign is described.
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Surface core-level shifts on Nb(001)

Physical Review B, 1995
High-resolution 3${\mathit{d}}_{5/2}$ core-level spectra of the clean Nb(001) surface have been obtained at 130 K with 240- and 250-eV synchrotron radiation. The most remarkable result is the positive sign (0.49\ifmmode\pm\else\textpm\fi{}0.01 eV) of the surface core-level shift (the positive sign means that the surface signal is shifted to higher ...
, Lo, , Chien, , Tsan, , Fang
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Core-level shifts from density-functional computations

Physical Review B, 1993
The C 1s x-ray photoelectron spectroscopy binding energies of a series of organic (CO, CH 4 , C 2 H 2 , HCHO, CH 3 CCH, C 6 H 6 ) and inorganic [Ni(CO) 4 , Mo(CO) 6 ] molecules have been calculated by using the linear-combination of Gaussian-type orbitals local- and nonlocal-spin-density (LCGTO-LSD and LCGTO-NLSD) methods.
, Pedocchi, , Russo, , Salahub
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The Electromagnetic Shift of Energy Levels

Physical Review, 1948
The displacement between the $2s$ and $2{p}_{\frac{1}{2}}$ levels of hydrogen is calculated on the assumption that it is caused by interaction with the radiation field; the calculation is relativistic, but the spin of the electron is neglected. The theory gives a finite result, agreeing closely with the experimental value.
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The Electromagnetic Shift of Energy Levels

Physical Review, 1947
B very beautiful experiments, Lamb and Retherford1 have shown that the fine structure of the second quantum state of hydrogen does not agree with the prediction of the Dirac theory. The 2s level, which according to Dirac’s theory should coincide with the 2p 1 2 level, is actually higher than the latter by an amount of about 0.033 cm−1 or 1000 ...
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Surface core-level shifts of InAs(110)

Physical Review B, 1990
La presence de la surface abaisse l'energie de liaison de As-3d et augmente celle de In 4d, par rapport aux energies de liaisons des niveaux de volume ...
, Andersen, , Karlsson
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Cavity QED level shifts of simple atoms

Physical Review A, 1991
We have made a quantitative study of quantum electrodynamic corrections to the energy of some simple atoms near a metallic surface. (i) The two-level atom provides a basic framework within which we discuss the van der Waals, Casimir, and resonant radiative level shifts.
Hinds, E., Sandoghdar, V.
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Energy Level Shifts in a Large Enclosure

Physical Review, 1956
It is proved that for a particle enclosed in a large box, a potential shifts the energy levels by an amount which, as the volume v of the enclosure tends to infinity in a suitable manner, becomes proportional to ${E}^{\frac{1}{2}}\ensuremath{\delta}(E){v}^{\ensuremath{-}\frac{1}{3}}$, where $\ensuremath{\delta}$ is the corresponding phase shift ...
Fukuda, N., Newton, R. G.
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