نتایج جستجو برای: differential system
تعداد نتایج: 2461036 فیلتر نتایج به سال:
This article formulates a new technique for behavior analysis of systems through fuzzy Kolmogorov's differential equations and Particle Swarm Optimization. For handling the uncertainty in data, differential equations have been formulated by Markov modeling of system in fuzzy environment. First solution of these derived fuzzy Kolmogorov's differential equations has been found by Runge-Kutta four...
this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...
the construction of fractional type of flatlet biorthogonal multiwavelet system is investigated in this paper. we apply this system as basis functions to solve the fractional differential and integro-differential equations. biorthogonality and high vanishing moments of this system are two major properties which lead to the good approximation for the solutions of the given problems. some test pr...
the stochastic reaction diffusion systems may suffer sudden shocks, in order to explain this phenomena, we use markovian jumps to model stochastic reaction diffusion systems. in this paper, we are interested in almost sure exponential stability of stochastic reaction diffusion systems with markovian jumps. under some reasonable conditions, we show that the trivial solution of stocha...
سرطان تخمدان سرطان شایع زنان در جهان می باشد که به دلیل فقدان علایم بالینی مشخص و ابزار غربالگری مناسب درصد مرگ و میر بالایی دارد. بررسیهای مولکولی انکوژنها ازجمله روشهای تحقیقاتی است که می تواند راهی برای تشخیص و درمان این نوع سرطان بگشاید. مطالعاتی که در مورد انکوژن int-2 در جوامع غربی انجام گرفته است نشانگر تکثیر زیاد این ژن در سرطان پستان می باشد. تحقیق حاضر به منظور تعیین تغییرات انکوژن in...
Fractional calculus has been used to model the physical and engineering processes that have found to be best described by fractional differential equations. For that reason, we need a reliable and efficient technique for the solution of fractional differential equations. The aim of this paper is to present an analytical approximation solution for linear and nonlinear multi-order fractional diff...
comparative study on solving fractional differential equations via shifted jacobi collocation method
in this paper, operational matrices of riemann-liouville fractional integration and caputo fractional differentiation for shifted jacobi polynomials are considered. using the given initial conditions, we transform the fractional differential equation (fde) into a modified fractional differential equation with zero initial conditions. next, all the existing functions in modified differential equ...
چکیده ندارد.
differential steering of in-wheel electric vehicle provides the functions of both active steering and power assisted steering with the coupling control of force and displacement transfer characteristic of system. a collaborative optimization model of the differential power-assisted steering system of in-wheel electric vehicle is built, with steering economy as the main system optimization goal,...
چکیده : نظام انتخاباتی قواعد و چار چوب های به رسمیت شناخته شده ای است که بیانگر چگونگی تبدیل آرای مردم به مناصب و پست های سیاسی است. این نظام انتخابات باید به گونه ای عمل کند که نتیجه آن فراهم شدن مکانیسم و ساز و کار مطلوب و مناسب برای برگزاری انتخابات سالم و رقابتی باشد. به نظر می رسد نظام انتخاباتی جمهوری اسلامی ایران دارای ضعف ها و نواقصی است که به سبب آن ها نمی توان انتخابات مطلوب را برگزا...
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