Results 271 to 280 of about 292,691 (319)

SPONTANEOUS POLARIZATION STUDIES*

Geophysical Prospecting, 1965
ABSTRACTSelf potential measurements, both in drill holes and on surface, have been made in and around sulphide mineralization. Similar measurements were carried out on small scale laboratory models. The potential and current configurations around theoretical sulphide bodies are also described.
ALEX BECKER, W. M. TELFORD
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A study on channel polarization and polar coding

2011 9th IEEE International Conference on ASIC, 2011
In 2006, Arikan introduced the method of channel polarization on which one can construct efficient capacity-achieving codes, called polar codes, for any binary discrete memoryless channel (B-DMC). In this letter, we will give a description of the main ideas and mechanisms of this kind of codes.
null Yichao Lu, Satoshi Goto
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Studies of Skylight Polarization*†‡

Journal of the Optical Society of America, 1965
The results of a series of systematic measurements of skylight polarization are presented and discussed. The measurements were made at Los Angeles during spring, 1963. A photoelectric skylight polarimeter employing ac light modulation has been employed in these measurements which were confined to the plane of the sun’s vertical.
George C. Holzworth, C. R. Nagaraja Rao
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Platelet activation studied by fluorescence polarization

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 1984
Platelet activation was elevated by changes in the fluorescence anisotropy of the sulfhydryl-reactive fluorescent probe, (5-[2-(iodoacetyl) aminacetyl]aminonaphthalene-1-sulfonic acid. The membrane-permeable fluorophore was shown to bind to a multitude of cytoplasmic and membrane proteins.
M, Steiner, E F, Lüscher
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Lidar polarization studies of the troposphere

Applied Optics, 1975
The polarization properties of lidar backscattering from the atmosphere have been measured using a ruby system operating at 694.3 nm and 347.2 nm. Linearly polarized signals are transmitted, and multiple receiver channels simultaneously sample the return with polarizers oriented parallel and perpendicular to the transmitted polarization.
W R, McNeil, A I, Carswell
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Studies of Polar Stratospheric Cloud Formation

Accounts of Chemical Research, 2001
Stratospheric ozone depletion was first reported in 1985. Early on, researchers identified polar stratospheric clouds (PSCs) as being important in chemistry related to ozone depletion. PSCs exist as crystalline water-ice particles (type II), and as crystalline (type Ia) or liquid (type Ib) particles stable above the water-ice frost point.
A J, Prenni, M A, Tolbert
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Polar Sunrise Studies

1993
The polar night is long and cold. Locations such as Alert at the northern edge of Ellesmere Island (82° N) do not receive any sunlight from late September until the beginning of March, and the average ambient temperature is normally below −30 °C during that time. This fact has interesting consequences for the chemistry that can occur in the ambient air
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Studying the Polarized Presidency

Presidential Studies Quarterly, 2002
For reasons that political scientists do not fully understand, American political elites are now more ideologically polarized than they have been since the end of World War I. This polarization–in combination with the rise of divided party government–has sweeping implications for the presidency. No aspect of executive‐legislative relations is untouched.
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Balmer-α polarization studies

AIP Conference Proceedings, 2002
The polarization of Balmer-α radiation excited in collisions of electrons with atomic hydrogen is presented for an electron energy range from threshold to 1000 eV. Measurements are in good agreement with calculations carried out using either convergent-close-coupling (CCC) or R-Matrix with pseudo-states (RMPS) approaches.
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A Polarization Study of Quasar 4C 71.07

International Astronomical Union Colloquium, 1997
AbstractParsec-scale polarization observations of the quasar 4C 71.07 show a misalignment between the inferred magnetic field direction and the structural direction of the jet. Dual frequency VLBI polarimetry was used to to determine whether Faraday rotation was the origin of the misalignment. We find insufficient rotation to realign the field and jet.
J.M. Hutchison, T.V. Cawthorne
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