نتایج جستجو برای: free energy
تعداد نتایج: 1130628 فیلتر نتایج به سال:
We prove theorems characterizing the minimizers in a model for condensation based on the Cahn–Hilliard free energy functional. In particular we exactly determine the critical density for droplet formation.
The H. Ooguri, A. Strominger and C. Vafa conjecture ZBH = |Ztop| is extended for the topological strings on generalized CY manifolds. It is argued that the classical black hole entropy is given by the generalized Hitchin functional, which defines by critical points a generalized complex structure on X. This geometry differs from an ordinary geometry if b1(X) 6= 0. In a critical point the genera...
We present an alternative procedure to eliminate irregular contributions in the perturbation expansion of c=0–matrix models representing the sum over triangulations of random surfaces, thereby reproducing the results of Tutte [1] and Brézin et al. [2] for the planar model. The advantage of this method is that the universality of the critical exponents can be proven from general features of the ...
In this paper we complement our recent result on the explicit formula for the planar limit of the free energy of the two–matrix model by computing the second and third order observables of the model in terms of canonical structures of the underlying genus g spectral curve. In particular we provide explicit formulas for any three–loop correlator of the model. Some explicit examples are worked out.
We study the free energy of the pure glue QCD string with a torus target space and the gauge groups SU(N) and (chiral) U(N). It is highly constrained by a strong/weak gauge coupling duality which results in modular covariance. The string free energy is computed exactly in terms of modular forms for worldsheet genera 1 8. It has a surprisingly mild singularity in the weak gauge coupling/small ar...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
in the present study, the binding isotherms for interaction of a homologous series of n-alkyltrimethyl ammonium bromides with bovine serum albumin (bsa) have been analyzed on basis of intrinsic thermodynamic quantities. in this regards, the intrinsic gibbs free energy of binding, agb(i,)„ has been estimated at various surfactant concentrations and its trend of variation for both binding sets ha...
background: lead-based radiation shields are widely used in radiology departments to protect both workers and patients from any unnecessary exposure to ionizing radiation. recently there has been a great deal of concern expressed about the toxicity of lead. human lead toxicity is well documented. in that light, production of environmentally-friendly lead-free radiation shields with less weight ...
purpose the purpose of this investigation was to compare a practical measurement of fat free mass index (ffmi) from bioelectrical impedance analysis (bia) to the dual energy x-ray absorptiometry (dexa) value in collegiate athletes. methods thirty-three male baseball players and 16 female gymnasts volunteered to participate in this study during their respective pre-season. subjects visited the l...
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