Results 251 to 260 of about 14,945,351 (305)

The optimized effective potential with finite temperature

Journal of Physics: Condensed Matter, 2006
The optimized effective potential (OEP) method provides an additional level of exactness in the computation of electronic structures, e.g. the exact exchange energy can be used. This extra freedom is likely to be important in moving density functional methods beyond traditional approximations such as the local density approximation.
R A, Lippert, N A, Modine, A F, Wright
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High-temperature ratchets with sawtooth potentials

Physical Review E, 2016
The concept of the effective potential is suggested as an efficient instrument to get a uniform analytical description of stochastic high-temperature on-off flashing and rocking ratchets. The analytical representation for the average particle velocity, obtained within this technique, allows description of ratchets with sharp potentials (and potentials ...
Viktor M, Rozenbaum, Irina V, Shapochkina, Sheh-Yi, Sheu, Dah-Yen, Yang, Sheng Hsien, Lin   +4 more
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Bonn potential model at finite temperature

Physical Review C, 1996
By using the thermofield dynamics, we have calculated the effective coupling of nucleon-nucleon mesons by summing the three-lines vertices and the masses of nucleon and mesons by summing the corresponding self-energy diagrams of the Bonn potential model at finite temperature.
, Gao, , Zhang, , Su
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Temperature and chemical potential

2009
Since the big bang the universe has cooled down substantially. Still, understanding QCD at high temperature and at high matter density is important for various reasons. One of them is obviously a better understanding of quarkand gluon matter shortly after the big bang and of the condensation of hadrons in the cooling process.
Christof Gattringer, Christian B. Lang
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Percolation temperature and the ‘‘instability’’ of the effective potential

Physical Review D, 1985
We show that in spontaneously broken lambdaphi/sup 4/ theory the percolation temperature coincides with the temperature at which the semiclassical (loop) expansion of the effective potential (free energy) of the system around a uniform field configuration fails. This allows us to extract the percolation temperature directly from the effective potential.
, Arago de Carvalho C, , Bazeia, , Éboli, , Marques, , da Silva AJ, , Ventura   +5 more
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The actions of interferon are potentiated at elevated temperature

Nature, 1978
INTERFERON was discovered1 because of its antiviral properties, but interferon preparations have other biological activities. These include inhibition of transplanted tumours in vivo2 and of cell multiplication in vitro3,4, as well as regulatory roles in the immune response5.
I, Heron, K, Berg
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Effect of Temperature on the Equilibrium Endplate Potential

Nature, 1972
IT has been suggested1 that during the interaction of acetylcholine (ACh) with the cholinergic receptor (ChR) each elementary ionic channel of the postsynaptic membrane (PSM) becomes active, that is accessible for K+ and Na+ ions, for such short a time that the equilibrium potential (Ep) of PSM is determined by a current which is far from stationary ...
P D, Bregestovski, L M, Chailachjan, V L, Dunin-Barkovski, T W, Potapova, B N, Veprintsev   +4 more
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Potential Temperature and the Stratosphere

Nature, 1931
THE high coefficients of correlation between the measures of certain meteorological elements at the tropopause and the air-pressure at 9 kilometres cited by L. H. G. Dines in his letter in NATURE of May 30 may be welcomed as a reminder of the intricate but regular associations of the meteorological elements in the sequence of weather-changes which are ...
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Effect of Temperature on PV Potential in the World

Environmental Science & Technology, 2011
This work aims to identify the geographic distribution of photovoltaic (PV) energy potential considering the effect of temperature on PV system performance. A simple framework is developed that uses the JIS C 8907 Japanese industrial standard to evaluate the effects of irradiation and temperature on PV potential.
Kotaro, Kawajiri, Takashi, Oozeki, Yutaka, Genchi   +2 more
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Atmospheric Stability and Potential Temperature

2021
The culmination of the implications of the Ideal Gas Law, hydrostatic balance, and humidity leads naturally to an ability to describe the path of a hypothetical blob of air—called an air parcel—as it is forced to rise in the atmosphere. This tendency to rise is a measure of atmospheric stability.
Robert V. Rohli, Chunyan Li
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