نتایج جستجو برای: classical method

تعداد نتایج: 1783233  

مصدق, حمید, کشاورز, فرزانه,

In this study, the effect of four-spin exchanges between the nearest and next nearest neighbor spins of honeycomb lattice on the phase diagram of S=3/2 antiferomagnetic Heisenberg model is considered with two-spin exchanges between the nearest and next nearest neighbor spins. Firstly, the method is investigated with classical phase diagram. In classical phase diagram, in addition to Neel order,...

Journal: :wavelets and linear algebra 0
arash ghaani farashahi university of vienna

this article presents an analytic approach to study admissibility conditions related to classical full wavelet systems over finite fields using tools from computational harmonic analysis and theoretical linear algebra. it is shown that for a large class of non-zero window signals (wavelets), the generated classical full wavelet systems constitute a frame whose canonical dual are classical full ...

روح‌اله موسوی, , هاشم رفیعی تبار, ,

 Classical thermodynamic laws and relations have been developed for macroscopic systems that satisfy the thermodynamic limit. These relations are challenged as the system size decreases to the scale of nano-systems, in which thermodynamic properties are overshadowed by system size, and the usual classical concepts of extensivity and intensivity are no longer valid. The challenges to the classic...

Journal: :algebraic structures and their applications 2016
mohammad hassan naderi

in this paper we introduce the notions of uniformly quasi-primary ideals and uniformly classical quasi-primary submodules that generalize the concepts of uniformly primary ideals and uniformly classical primary submodules; respectively. several characterizations of classical quasi-primary and uniformly classical quasi-primary submodules are given. then we investigate for a ring $r$, when any fi...

Ali Reza Askari Mohammad Shariyat

In this paper, transfinite element method is used to analyze the two dimensional thermoelasticity problems. A comparison is made between the thermoelastic analysis results of the classical theory and theories with one or two relaxation times (i.e. L-S and G-L theories), for the half space problem. Governing equations are transformed to Laplace domain and then, node variables are calculated by t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده صنایع 1387

مدل های تحلیل پوششی داده های کلاسیک، با واحدهای تصمیم گیری به صورت یک «جعبه سیاه» رفتار می کند و فرآیندهای درونی و کارایی این فرآیندها را درنظرنمی گیرد، به طوری که ورودی به واحد تصمیم گیری وارد و خروجی بدست می آید، بنابراین با درنظرگرفتن واحد تصمیم گیری به صورت یک کل، کارایی آن را محاسبه می کند. درحالی که اغلب، ناکارایی هر واحد تصمیم گیری از ناکارایی بخش های درونی واحد تصمیم گیری ناشی می شود. ب...

Journal: :international journal of industrial mathematics 2015
vishwanath b. ‎awati‎ mahesh kumar ‎n‎ krishna b. ‎chavaraddi‎

the paper presents the semi-numerical solution for the magnetohydrodynamic (mhd) viscous flow due to a stretching sheet caused by boundary layer of an incompressible viscous flow. the governing partial differential equations of momentum equations are reduced into a nonlinear ordinary differential equation (node) by using a classical similarity transformation along with appropriate boundary cond...

Foad Salmasi Majid Alavi Mohammad Mahdy Najafizadeh, Shima Azari

Bending analysis of FGM plates under uniform and sinusoidal loaded result in forth order partial differential equation. In this paper the analytical solution is based on the extended Kantorovich iterative procedure. The differential equations for the iterative procedure is derived using the Galerkin method. The solution was develope based on the classical plate’s theory (CLPT). The reliability ...

Journal: :journal of sciences islamic republic of iran 0

in this paper we describe how the degrees of the irreducible characters of the affine subgroups of the classical groups under consideration can be found inductively. in [4] gow obtained certain character degrees for all of the affine subgroups of the classical groups. we apply the method of fischer to the above groups and, in addition to the character degrees given in [4], we obtain some new ch...

2008
Paolo Amore

In many physical problems it is not possible to find an exact solution. However, when some parameter in the problem is small, one can obtain an approximate solution by expanding in this parameter. This is the basis of perturbative methods, which have been applied and developed practically in all areas of Physics. Unfortunately many interesting problems in Physics are of non-perturbative nature ...

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