Results 251 to 260 of about 6,035,803 (304)

Surface States, Surface Effects

1995
It has been stated already that PES, because of the small escape depth of the electrons in a solid, in principle, is a surface sensitive technique. However, the agreement found in the preceding chapter between calculated and experimental bulk band structures was remarkable.
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The Surface Photoelectric Effect

Physical Review, 1949
An expression is derived for the photoelectric current produced at the surface of a metal, the conduction electrons being supposed free and the potential barrier of arbitrary shape. The validity of the common assumption that the current arising from conduction electrons of a particular momentum can be expressed as the product of an excitation function ...
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Effect of surface tension on alveolar surface area

Journal of Applied Physiology, 2002
At fixed lung volume (Vl), alterations in surface tension change alveolar surface area (S) and lung recoil (Pl). Wilson (26), using data from fixed lungs (1, 9), quantified the isovolume change in S with Pl. We reexamined this question in fresh excised rabbit lungs, with two important differences.
James P, Butler, Richard E, Brown, Dimitrije, Stamenović, John P, Morris, George P, Topulos   +4 more
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Surface dyslexia: A regression effect?

Brain and Language, 1985
Although the disorder of acquired surface dyslexia is considered as a pathological syndrome in the psycholinguistic and neuropsychological literature, it may also be conceived of as part of a general regression in functioning consequent upon brain damage.
M, Prior, M, McCorriston
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Surface effects in sulphidation reactions

Canadian Metallurgical Quarterly, 1990
AbstractPure iron and an Fe–41 wt% Ni alloy are reacted at temperatures in the range 793–1073 K with H2–H2S–N2 atmospheres corresponding to equilibrium P S2 levels from 6.5 × 10−5 to 0.65 Pat The kinetics of iron sulfidation are intermediate in form to linear and parabolic rate laws.
D. J. Young, J. P. Orchard
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Surface effects in invasion percolation

Physical Review E, 1997
Boundary effects for invasion percolation are introduced and discussed here. The presence of boundaries determines a set of critical exponents characteristic of the boundary. In this paper we present numerical simulations showing a remarkably different fractal dimension for the region of the percolating cluster near the boundary.
Raffaele Cafiero, Guido Caldarelli, Andrea Gabrielli   +2 more
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Surface effect immunoassay

1991
This chapter on surface effect immunoassays is written with a (slightly) futuristic view on what we consider will be the next generation of technology to be applied successfully to the measurement of antibodies or antigens for clinical purposes. This is a relatively new field based on well established physical principles ( for a general review of this ...
Ranald Sutherland, Barry Simpson, Bryan Allman   +2 more
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Surface effects in metal microclusters

Physical Review B, 1987
The interatomic distances encountered in metal microclusters are calculated by assuming that the phenomenon of multilayer relaxation observed on macroscopic surfaces applies also to the surfaces of finite polyhedron-shaped clusters. The calculations of surface relaxation values are done by means of the modified point-ion model developed by the authors.
, Jiang, , Jona, , Marcus
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Surface Effects and Surface Devices

1987
The preceding chapters have concentrated on the structure and properties of several semiconductor devices. Up to now, contacts to the outside world have at all times been considered as ideal; that is, they do not in any way affect the operation of the device. This is normally not the case.
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Effective surface decontamination

Dental Nursing, 2013
Infection prevention and control is coming under increasing scrutiny, yet has always been considered important to the dental profession. Here, Julia Freeman explores best practice in surface decontamination
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