Results 251 to 260 of about 2,848,674 (305)
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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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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 superconducting resonators
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1992Preliminary measurements on high-T(c) superconducting resonators are reported and why they are attractive candidates for incorporation in low-noise oscillators is discussed. Some of the important contributions to oscillator noise are reviewed and how they depend on the resonator parameters is shown. A preliminary YBaCu (3)O(7)/LaAlO(3) resonator with a
R C, Taber +5 more
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High-temperature axion potential
Physical Review D, 1989We investigate the possibility of new terms in the high-temperature axion potential arising from the dynamical nature of the axion field and from higher-order corrections to the {theta} dependence in the free energy of the quark-gluon plasma. We find that the dynamical nature of the axion field does not affect the potential but that the higher-order ...
, Dowrick, , McDougall
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High-temperature liquid chromatography
Journal of Chromatography A, 2003The present state of the active use of elevated temperatures in liquid chromatography is reviewed, including the effects on retention, selectivity and efficiency. Separations in aqueous mobile phases as well as non-aqueous media are discussed, with particular emphasis on narrow-bore columns.
Tyge, Greibrokk, Thomas, Andersen
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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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1996
Abstract ln this method electrical current is used to heat a sample placed in the DAC chamber. Liu and Bassett (1975) first studied melting of iron wire which was resistively heated in an ungasketed DAG. The phase diagram of iron was studied to pressures up to 43 GP a by Boehler et al. (1986) and up to 36 GP a by Mao et al.
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Abstract ln this method electrical current is used to heat a sample placed in the DAC chamber. Liu and Bassett (1975) first studied melting of iron wire which was resistively heated in an ungasketed DAG. The phase diagram of iron was studied to pressures up to 43 GP a by Boehler et al. (1986) and up to 36 GP a by Mao et al.
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High-Temperature Chemical Transport
Journal of Crystal Growth, 1971The increasing importance of high-temperature materials for science and technology has in the last ten years created a great demand for single crystals of compounds with a high melting point. Although the operating temperatures for methods of growing crystals from the melt have been pushed up continuously, crystals of many high-melting compounds cannot
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High‐Entropy High‐Temperature High‐Piezoelectricity Ceramics
Advanced MaterialsAbstractHigh‐temperature piezoelectric materials are essential components of transducers and accelerometers applied in the fields of aircraft engines, automobiles, nuclear power units, etc., yet how to achieve large piezoelectricity accompanied by high Curie temperature and superior resistivity is still a big challenge.
Jie Wu +10 more
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