Langmuirn.
/ˈlaŋmjʊə/, U.S. /ˈlæŋˌmjʊ(ə)r/ Used attributively and in the possessive to designate various concepts introduced by Langmuir or arising out of his work, as Langmuir adsorption isotherm n. (also Langmuir's adsorption isotherm) Physics (the equation of) a curve showing the relationship between the proportion of a surface covered by molecules of an adsorbed gas and the gas pressure. Langmuir cell n. Oceanography each of the cells within which water circulates in Langmuir circulation. Langmuir circulation n. Oceanography the large-scale organized motion, due to convection currents, observed near the surface of large bodies of water. Langmuir isotherm n. Physics = Langmuir adsorption isotherm n. above. Langmuir probe n. Physics an instrument for studying the density and other properties of plasma by measuring the current through a small electrode of known potential.
ΘΚΠ
the world > matter > physics > mechanics > fluid mechanics > [noun] > adhering to surfaces > specific equation or curve
Langmuir adsorption isotherm1931
Langmuir isotherm1931
the world > matter > physics > atomic physics > ion > plasma or ionized gas > [noun] > study of > instrument
Langmuir probe1931
plasma probe1961
the world > the earth > water > sea or ocean > [noun] > large-scale motion in
advection1938
Langmuir circulation1963
Ekman transport1967
the world > the earth > water > sea or ocean > [noun] > large-scale motion in > cell in Langmuir circulation
Langmuir cell1970
1924 Physical Rev. 29 597 Potential distribution and ion concentration were investigated by Langmuir's modified probe method.]
1931 S. Glasstone Recent Adv. Physical Chem. vii. 300 The presence of the constant k may be attributed to the formation of a very stable complete layer of gas, upon which a subsequent unimolecular layer, satisfying the requirements of the Langmuir isotherm..is adsorbed.
1932 K. K. Darrow Electr. Phenomena in Gases Index 489/2 Langmuir probe-method.
1940 S. Glasstone Text-bk. Physical Chem. xiv. 1177 x/m = k1k2p/(1 + k1p), where k1 and k2 are constants for the given system and p is the gas pressure..is known as Langmuir's adsorption isotherm.
1941 J. D. Cobine Gaseous Conductors Index 601/1 Langmuir probe.
1958 H. J. Gray Dict. Physics 290/1 The Langmuir probe..is connected to a point of variable potential and the current drawn is studied against the current.
1963 Deep-sea Res. 10 233 In Langmuir circulation the surface layers of two adjacent masses of water flow toward each other.
1964 G. I. Brown Introd. Physical Chem. xlv. 498 The Langmuir adsorption isotherm gives a satisfactory theoretical interpretation of many experimental results.
1970 Jrnl. Geophysical Res. 75 4177/1 Such circulation patterns are now generally known as Langmuir cells.
1978 P. W. Atkins Physical Chem. xxviii. 946 Deviations from the Langmuir isotherm are widely observed.
1979 Nature 14 June 615/2 The data reported here are from three instruments on Pioneer Venus—the electric field detector, the magnetometer, and the Langmuir probe.
1979 Nature 26 July 273/3 Pollard then pointed to processes believed to be relevant in the mixed layer: the generation of Kelvin–Helmholtz billows, with subsequent mixing, surface wave breaking and Langmuir circulation due to interactions between surface waves and shear in the water.
1992 S. P. Maran Astron. & Astrophysics Encycl. 191/2 The instrumentation carried for charged particle studies evolved from the original simple GM tubes to..Faraday cages, Langmuir probes, and channel electron multipliers.
This entry has not yet been fully updated (first published 1997; most recently modified version published online March 2022).
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