نتایج جستجو برای: entropy formula

تعداد نتایج: 155925  

Journal: :Annales de l'Institut Henri Poincaré C, Analyse non linéaire 2021

Abstract We consider some classes of piecewise expanding maps in finite dimensional spaces having invariant probability measures which are absolutely continuous with respect to Lebesgue measure. derive an entropy formula for such and, using this formula, we present sufficient conditions the continuity that parameter parametrized families maps. apply our results a classical one-dimensional famil...

Journal: :international journal of environmental research 0
t.h. choo department of civil engineering, pusan national university, jangjeon-dong, geumjeong-gu, busan, 609-735, south korea s.j. maeng chungbuk national university, jangjeon-dong, geumjeong-gu, south korea h.c. yoon department of civil engineering, pusan national university, jangjeon-dong, geumjeong-gu, busan, 609-735, south korea d.m. kim department of civil engineering, pusan national university, jangjeon-dong, geumjeong-gu, busan, 609-735, south korea s.c. kim department of civil engineering, pusan national university, jangjeon-dong, geumjeong-gu, busan, 609-735, south korea

this study proposed a new discharge estimation method using a mean velocity formula derived from chiu’s 2d velocity formula of probabilistic entropy concept and the river bed shear stress of channel. in particular, we could calculate the mean velocity, which is hardly measurable in flooding natural rivers, in consideration of several factors reflecting basic hydraulic characteristics such as ri...

2009
Alan Guth

The formula for the entropy density of black-body radiation is given in Lecture Notes 7. The derivation of this formula has been left to the statistical mechanics course that you either have taken or hopefully will take. For our purposes, the important point is that the early universe remains very close to thermal equilibrium, and therefore entropy is conserved. The conservation of entropy appl...

2011
Alan Guth

The formula for the entropy density of black-body radiation is given in Lecture Notes 6. The derivation of this formula has been left to the statistical mechanics course that you either have taken or hopefully will take. For our purposes, the important point is that the early universe remains very close to thermal equilibrium, and therefore entropy is conserved. The conservation of entropy appl...

2005
Alan Guth

The formula for the entropy density of black-body radiation is given in Lecture Notes 7. The derivation of this formula has been left to the statistical mechanics course that you either have taken or hopefully will take. For our purposes, the important point is that the early universe remains very close to thermal equilibrium, and therefore entropy is conserved. The conservation of entropy appl...

2008
M. R. Setare

In this paper we discuss the question of whether the entropy of cosmological horizon in Topological Reissner-Nordströmde Sitter spaces can be described by the Cardy-Verlinde formula, which is supposed to be an entropy formula of conformal field theory in any dimension. Furthermore, we find that the entropy of black hole horizon can also be rewritten in terms of the Cardy-Verlinde formula for th...

Journal: :Netw. and Communic. Technol. 2012
Bin Yan

This paper presents a theoretical explanation and test results that an amount of information would not increase infinitely in transmission via the mathematical model of the matter for deciphering original works of information entropy and the principle of thermodynamic entropy. The rate formula with energy is derived via retrieval speed testing the vast amount of data in DBMS and variables in ra...

Journal: :CoRR 2015
Sergei Viznyuk

I consider the effect of a finite sample size on the entropy of a sample of independent events. I propose formula for entropy which satisfies Shannon’s axioms, and which reduces to Shannon’s entropy when sample size is infinite. I discuss the physical meaning of the difference between two formulas, including some practical implications, such as maximum achievable channel utilization, and minimu...

2008
M. R. Setare

In this letter, we investigate a possible modification to the temperature and entropy of 5−dimensional Schwarzschild anti de Sitter black holes due to incorporating stringy corrections to the modified uncertainty principle. Then we subsequently argue for corrections to the Cardy-Verlinde formula in order to account for the corrected entropy. Then we show, one can taking into account the general...

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