Results 261 to 270 of about 7,910,907 (308)
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Science, 1985
Water environments with temperatures up to and above boiling are commonly found in association with geothermal activity. At temperatures above 60°C, only bacteria are found. Bacteria with temperature optima over the range 65° to 105°C have been obtained in pure culture and are the object of many research projects.
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Water environments with temperatures up to and above boiling are commonly found in association with geothermal activity. At temperatures above 60°C, only bacteria are found. Bacteria with temperature optima over the range 65° to 105°C have been obtained in pure culture and are the object of many research projects.
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Superstrings at High Temperature
Physical Review Letters, 1985The behavior of ten-dimensional superstrings at high temperatures is studied by use of the microcanonical ensemble. We focus on closed superstring theories. The massive string excitations alone have negative specific heat. Such a system can reach equilibrium with the zero modes of the string if the energy carried by zero modes is less than a given ...
, Bowick, , Wijewardhana
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Physical Review D, 1990
We calculate the self-energy of massless fermions interacting with massless bosons at high temperature by summing the set of ring diagrams. This leads to an effective one-loop equation. We further approximate the boson self-energy by a temperature-dependent mass squared which is of order ({ital gT}){sup 2}. At low momenta, {ital p}{lt}{ital g}{sup 2}T,
Gatoff, G., Kapusta, J.
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We calculate the self-energy of massless fermions interacting with massless bosons at high temperature by summing the set of ring diagrams. This leads to an effective one-loop equation. We further approximate the boson self-energy by a temperature-dependent mass squared which is of order ({ital gT}){sup 2}. At low momenta, {ital p}{lt}{ital g}{sup 2}T,
Gatoff, G., Kapusta, J.
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Physical Review D, 1989
The SU(2) part of electroweak gauge theory has sphaleronlike configurations even in its symmetric phase (temperature {ital T}{gt}{ital T}{sub {ital c}}) which mediate baryon-number-violating processes. These sphalerons sit on top of a potential barrier (which we construct explicitly) whose height rises linearly with {ital T}, and always exceeds {ital T}
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The SU(2) part of electroweak gauge theory has sphaleronlike configurations even in its symmetric phase (temperature {ital T}{gt}{ital T}{sub {ital c}}) which mediate baryon-number-violating processes. These sphalerons sit on top of a potential barrier (which we construct explicitly) whose height rises linearly with {ital T}, and always exceeds {ital T}
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High temperature superconductivity
Journal of Polymer Science Part C: Polymer Symposia, 1970AbstractThe critical temperature, Tc, for all presently known superconductors does not exceed 21'K. This fact obviously limits the range of applications of superconductivity in technology in a very fundamental way. On the whole, the reason why the value of Tc for “ordinary” superconductors would not exceed 20‐40oK is fairly well understood. At the same
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High temperature electronics packaging: An overview of substrates for high temperature
2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015High temperature electronics (>200˚C) is an emerging technical area in electronics that requires new materials and processes or existing materials and processes in new ways. Results of reliability testing of packaging materials for >200˚C are presented so that the selection of appropriate packaging may be made to target an applications temperature and ...
David Shaddock, Liang Yin
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1998
Publisher Summary This chapter presents after a short reminder of thermodynamic definitions, the most commonly used techniques for surface tension measurements with some details of the most interesting of them for high temperature applications. Some recent results on the evaluation of the influence of external factors, like the surrounding atmosphere,
Passerone A, Ricci E
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Publisher Summary This chapter presents after a short reminder of thermodynamic definitions, the most commonly used techniques for surface tension measurements with some details of the most interesting of them for high temperature applications. Some recent results on the evaluation of the influence of external factors, like the surrounding atmosphere,
Passerone A, Ricci E
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High-Temperature Microfluidic Lithography
Advanced Materials, 2002The high-temperature microfluidic lithography was studied. A simple approach to improve the performance of microfluidic lithography, which does not act on the increase in the difference between the pressure that drives the capillary motion, but on the temperature-controlled reduction of the polymer viscosity was presented.
PISIGNANO, Dario +4 more
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