نتایج جستجو برای: extended homogeneous balance method

تعداد نتایج: 1987618  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1389

در نظریه ی میدانهای کوانتومی با واگراییهای آشکار بسیاری مواجه می شویم .البته کمیتهای فیزیکی همه متناهی هستند و بنابراین واگراییها تنها در طی مراحل محاسباتی ظاهر می شوند .بنابراین نیاز داریم که واگرائیها را به وسیله ی رگولاتورهای مختلف منظم سازی کنیم .دو رگولاتور جدید در نظریه میدانهای کوانتومی معرفی می کنیم که مربوط به فضازمانی با یک بعد اضافی فشرده بر روی دایره است ، مانند فضا زمان مربوط به تئ...

Journal: :Genetics 2000
J Li H W Deng

The Deng-Lynch method was developed to estimate the rate and effects of deleterious genomic mutations (DGM) in natural populations under the assumption that populations are either completely outcrossing or completely selfing and that populations are at mutation-selection (M-S) balance. However, in many plant and animal populations, selfing or outcrossing is often incomplete in that a proportion...

2004
D. Duft T. Leisner

We report on measurements of the rate of homogeneous ice nucleation in supercooled water microdroplets levitated in an electrodynamic balance. By comparison of the freezing probability for droplets of radius 49 µm and 19 µm, we are able to conclude that homogeneous freezing is a volume-proportional process and that surface nucleation might only be important, if at all, for much smaller droplets.

2012
A. N. Gorban E. M. Mirkes G. S. Yablonsky

For many real physico-chemical complex systems detailed mechanism includes both reversible and irreversible reactions. Such systems are typical in homogeneous combustion and heterogeneous catalytic oxidation. Most complex enzyme reactions include irreversible steps. The classical thermodynamics has no limit for irreversible reactions whereas the kinetic equations may have such a limit. We repre...

Journal: :Earth System Dynamics Discussions 2021

Abstract. In Part 1, I considered the zero-dimensional heat equation, showing quite generally that conductive–radiative surface boundary conditions lead to half-ordered derivative relationships between fluxes and temperatures: energy balance equation (HEBE). The real Earth, even when averaged in time over weather scales (up ≈ 10 d), is highly heterogeneous. this 2, treatment extended horizontal...

1999
Ignas Snellen

Gigahertz Peaked Spectrum (GPS) sources and Compact Symmetric Objects (CSO) are selected in very different ways, but have a significant overlap in properties. Ever since their discovery it has been speculated that they are young objects, but only recently, strong evidence has been provided indicating that GPS sources and CSOs are indeed the young counterparts of large, extended sources. They ar...

2009
Stéphanie CHAILLAT

Simulating wave propagation in 3D configurations is becoming a very active area of research. Themain advantage of the BEM is that only the domain boundaries are discretized. As a result, thismethod is well suited to dealing with unbounded domains. However, the standard BEM leadsto fully-populated matrices, which results in high computational costs in CPU time and mem-ory require...

2016
Emmanuel Bernuau Denis Efimov Wilfrid Perruquetti Andrey Polyakov Andrei Polyakov

The notion of geometric homogeneity is extended for differential inclusions. This kind of homogeneity provides the most advanced coordinate-free framework for analysis and synthesis of nonlinear discontinuous systems. The main qualitative properties of continuous homogeneous systems are extended to the discontinuous setting: the equivalence of the global asymptotic stability and the existence o...

2005
Liqiang Ni

Sliced inverse regression is one of the widely used dimension reduction methods. Chiaromonte and co-workers extended this method to regressions with qualitative predictors and developed a method, partial sliced inverse regression, under the assumption that the covariance matrices of the continuous predictors are constant across the levels of the qualitative predictor. We extend partial sliced i...

2008
SEOKCHAN KIM JONGSIK LEE J. LEE

In [7, 8], they proposed a new singular function(NSF) method to compute singular solutions of Poisson equations on a polygonal domain with re-entrant angles. Singularities are eliminated and only the regular part of the solution that is in H is computed. The stress intensity factor and the solution can be computed as a post processing step. This method was extended to the interface problem and ...

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