منابع مشابه
Characteristic Points of Stress-Strain Curve at High Temperature
Determination of critical points on hot stress-strain curve of metals is crucial in thermo-mechanical processes design. In this investigation a mathematical modeling is given to illustrate the behavior of metal during hot deformation processes such as hot rolling. The critical strain for the onset of dynamic recrystallization has been obtained as a function of strain at the maximum stress. In a...
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The resistive electrodes of RPCs utilised in several current experiments (ATLAS, CMS, ALICE, BABAR and ARGO) are made of phenolic/melaminic polymers, with room temperature resistivities ranging from 10 O cm; for high rate operation in avalanche mode, to 5 10 O cm; for streamer mode operation at low rate. The resistivity has however a strong temperature dependence, decreasing exponentially with ...
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For the calculation of static quantities, such as free energies, phase diagrams and screening masses, the euclidean lattice formulation of finitetemperature quantum fields offers a first-principle approach. For intrinsically real-time correlators, such as the spectral function, no first-principle nonperturbative formulation exists. In the last O(10) years the classical approximation at high tem...
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Recent developments of perturbation theory at finite temperature based on effective field theory methods are reviewed. These methods allow the contributions from the different scales to be separated and the perturbative series to be reorganized. The construction of the effective field theory is shown in detail for φ4 theory and QCD. It is applied to the evaluation of the free energy of QCD at o...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1935
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1915.21.8_656