نتایج جستجو برای: boltzman equation
تعداد نتایج: 229794 فیلتر نتایج به سال:
The ParFlow method permits to simulate outdoor wave propagation in urban environment. It compares with the so-called Lattice Boltzman Model (LBM), which describes a physical system in terms of the motion of fictitious microscopic particles over a lattice. One of the objectives of the European project STORMS1 (Software Tools for the Optimization of Resources in Mobile Systems) is to develop a so...
The thermodynamical property of a small cluster including M Hubbard dimers, each of which is described by the two-site Hubbard model, has been discussed within the nonextensive statistics (NES). We have calculated the temperature dependence of the energy, entropy, specific heat and susceptibility for M = 1, 2, 3 and ∞, assuming the relation between the entropic index q and the cluster size N gi...
Separating a color signal into illumination and surface reflectance components is a fundamental issue in color reproduction and constancy. This can be carried out by minimizing the error in the least squares (LS) fit of the product of the illumination and the surface spectral reflectance to the actual color signal. When taking in account the physical realizability constraints on the surface ref...
In recent years, much study has been made by applying the non-extensive statistics (NES) to various non-extensive systems where the entropy and/or energy are not necessarily proportional to the number of their constituent subsystems. The non-extensivity may be realized in many systems such as physical, chemical and biological ones, and also in small-scale systems. Bearing in mind atomic-scale t...
Cyclodextrins, a class of cyclic oligomeric compounds consisting of 6–8 units of D-glucose, alter the oxygen evolution of photosystem II (PSII) in barley thylakoids as well as chlorophyll a fluorescence induction, i.e., Fv/Fo and Fv/Fm where Fm is the maximal level of fluorescence when all PSII centres are closed, Fo is the minimal level of chlorophyll fluorescence when all PSII centres are ope...
Accurate diagnosis of cancer is of great importance due to the global increase in new cancer cases. Cancer researches show that diagnosis by using microarray gene expression data is more effective compared to the traditional methods. This study presents an extensive evaluation of a variant of Deep Belief Networks Discriminative Deep Belief Networks (DDBN) in cancer data analysis. This new neura...
We relate two parameter solutions of the sixth Painlevé equation and finite-gap solutions of the Heun equation by considering monodromy on a certain class of Fuchsian differential equations. In the appendix, we present formulae on differentials of elliptic modular functions, and obtain the ellitic form of the sixth Painlevé equation directly.
in this paper we have solved analytically the schrödinger equation for a microscopic particle in a one-dimensional box with two infinite walls, which the potential function inside it, has a linear form. based on the solutions of this special quantum mechanical system, we have shown that as the quantum number approaches infinity the expectation values of microscopic particle position and square ...
در این پایان نامه بر مقاله ی an iterative method for the symmetric and skew symmetric solutions of a linear matrix equation axb+cyd =e نوشته ی xingping sheng و guoliang chen، مروری داشته ایم. در این مقاله دو روش تکراری برای حل معادله ی ماتریسی خطی axb+cyd=e ارائه شده است. روش اول جواب معادله را به صورت متقارن و روش دوم جواب معادله را به صورت پادمتقارن ارائه می دهد. تعدادی مثال های عددی را با...
The spatial averaging theorem is applied to rigorously derive continuum-scale equations of radiative transfer in two-phase media consisting of either two semi-transparent or one semitransparent and one opaque homogeneous phases in the limit of geometric optics. The derivations are based on the equations of radiative transfer and the corresponding boundary conditions applied at the discrete-scal...
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