نتایج جستجو برای: thermodynamic parameter

تعداد نتایج: 254066  

1994
Francesco Guerra

We consider the Sherrington-Kirkpatrick mean eld model for spin glasses and show how the cavity method can be exploited for constructing functional representations of the ther-modynamic variables, in terms of functional order parameters. One representation is based on a functional order parameter of Parisi type. By assuming that the functional order parameter does not depend on the strength of ...

2002
I. Avramov E. D. Zanotto M. O. Prado

Possible relationships between measures of glass stability (GS) against devitrification on heating (evaluated by the Hrub€y parameter KH 1⁄4 ðT h c TgÞ=ðTm T h c Þ, and the parameter Kw 1⁄4 ðT h c TgÞ=TmÞ and a criterion of glass-forming ability (GFA) – the critical cooling rate – were investigated by computing non-isothermal crystallization for typical values of the main quantities that contro...

2003
Krenar Shqau

The thesis aims at the characterization of the p-electronic conduction parameter of cation conducting solid electrolytes. For this purpose potentiometric as well as thermoelectric measurements were carried out. The investigations have been done on commercially available potassium and sodium beta alumina as well as on laboratoryprepared samples of NASICON. The information about the p-electronic ...

2005
MAREK BISKUP

Chessboard estimates are one of the standard tools for proving phase coexistence in spin systems of physical interest. In this note we show that the method not only produces a point in the phase diagram where more than one Gibbs states coexist, but that it can also be used to rule out the existence of shift-ergodic states that differ significantly from those proved to exist. For models dependin...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Ming Han Jing Yan Steve Granick Erik Luijten

Thermal energy agitates all matter, and its competition with ordering tendencies is a fundamental organizing principle in the physical world; this observation suggests that an effective temperature might emerge when external energy input enhances agitation. However, despite the repeated proposal of this concept based on kinetics for various nonequilibrium systems, the value of an effective temp...

Journal: :Environmental Health Perspectives 1988
S S Sehnert T H Risby

Pseudophase liquid chromatography was used to measure the thermodynamic parameters governing adsorption of organic molecules from the surfaces of carbonaceous particles into liposomal zwitterionic mobile phases. These mobile phases contain many of the important physicochemical parameters of alveolar surfactant. Results show that physical desorption into model surfactant will be dependent upon t...

2008
Vishnu M. Bannur

Here we comment on the thermodynamic inconsistency problem and the reformulation of statistical mechanics of widely studied quasiparticle models of quark-gluon plasma. Their starting relation, the expression for pressure itself is a wrong choice and lead to thermodynamic inconsistency and the requirements of the reformulation of statistical mechanics. We propose a new approach to the problem us...

Journal: :Biophysical chemistry 2001
D J Winzor L E Carrington S E Harding

The effects of thermodynamic non-ideality on the forms of sedimentation equilibrium distributions for several isoelectric proteins have been analysed on the statistical-mechanical basis of excluded volume to obtain an estimate of the extent of protein solvation. Values of the effective solvation parameter delta are reported for ellipsoidal as well as spherical models of the proteins, taken to b...

2013
D. Adhikari R. P. Koirala B. P. Singh

A self-association model has been used to understand the concentration dependence of free energy of mixing (GM), heat of mixing (HM), entropy of mixing (SM), activity (a) and microscopic structures, such as concentration fluctuation in long wavelength limit (Scc(0)) and Warren-Cowley short range order parameter ( 1 α )for CuTl molten alloys at 1573K. A comparative study of surface tension of th...

2011
A. E. Shalyt-Margolin

The dark energy problem is analyzed from the viewpoint of the time-varying cosmological term. It is demonstrated that, at least within the scope of the holographic principle, an experimental value of the vacuum energy density may be derived and may be tested quite well with a new small parameter arising in a quantum theory with the fundamental length on the order of Planck’s length. Besides, wi...

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