نتایج جستجو برای: simultaneous equation method

تعداد نتایج: 1889765  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ریاضی 1393

در ابتدا به طور مختصر ارتباط بین مسائل تغییراتی و معادلات دیفرانسیل را بیان می کنیم. همان طور که می دانیم هر معادله دیفرانسیل را می توان به صورت ‎egin{equation} label{yek}‎ ‎a(u)= 0‎ ‎end{equation}‎ نوشت، که در آن ‎$ a(u) $‎ یک عملگر دیفرانسیل معمولی یا جزئی خطی یا غیرخطی و ‎$ u $‎ مجهول می باشد. برای حل این معادلات و به خصوص معادلات دیفرانسیل جزیی غیرخطی راه حل مشخصی وجود ندارد.حساب تغییر...

Journal: :international journal of mathematical modelling and computations 0
paria assari orcid id islamic azad university, hamedan branch iran, islamic republic of taher lotfi islamic azad university, hamedan branch iran, islamic republic of

in this study, we modify an iterative non-optimal without memory method, in such a way that is becomes optimal. therefore, we obtain convergence order eight with the some functional evaluations. to justify our proposed method, some numerical examples are given.

Journal: :نظریه تقریب و کاربرد های آن 0
ب. سلطان علیزاده دانشگاه آزاد واحد سراب ب. بابا یار دانشگاه آزاد واحد سراب

in this paper, the di erential transform method (dtm) is applied to the fisherequation. this method can be used to obtain the exact solutions of fisherequation. finally, we give some examples to illustrate the suciency of themethod for solving such nonlinear partial di erential equations. these resultsshow that this technique is easy to apply.

Journal: :the modares journal of electrical engineering 2004
zahra atlasbaf kayvan forooraghi

in this paper two nodes to model isotropic and anisotropic media in transmission line matrix method (tlm) are presented. by using these two nodes, the permeability and permittivity of an anisotropic media can be modeled simultaneously. another application of these nodes is in modeling media with permittivity and permeability less than one. in the conventional 2 dimensional tlm, the stubs repres...

2013
Felix W Wehrli Varsha Jain Zachary Rodgers Cheng Li

Background/Purpose: The cerebral metabolic rate of oxygen consumption (CMRO2) is a fundamental physiologic parameter that has only recently become amenable to measurement by noninvasive imaging modalities (1). Here, we present an approach based on simultaneous quantification of venous oxygen saturation (SvO2) and total flow, yielding CMRO2 in absolute physiologic units by invoking Fick’s equati...

Journal: :journal of sciences, islamic republic of iran 2015
a. aasaraai

to start with, having employed transformation wave, some nonlinear partial differential equations have been converted into an ode. then, using the infinite series method for equations with similar linear part, the researchers have earned the exact soliton solutions of the selected equations. it is required to state that the infinite series method is a well-organized method for obtaining exact s...

1998
Takashi Washio Hiroshi Motoda

SSF is a system to discover the structure of simultaneous equations governing an objective process through experiments. SSF combined with another system SDS to discover a quantitative formula of a complete equation derives the quantitative model consisting of simultaneous equations reflecting the first principles underlying in the objective process. The power of SSF comes from the use of the co...

2011
Ramesh L. Sawant Sanket D. Hadawale Ganesh K. Dhikale Charusheela A. Bansode Pravin S. Tajane

INTRODUCTION The present work aimed to develop and validate spectrophotometric methods for simultaneous estimation of rabeprazole sodium and aceclofenac in a pure and capsule dosage form. MATERIALS AND METHODS Method 1 is based on solving a simultaneous equation. Absorbances of rabeprazole sodium and aceclofenac were measured at their respective absorbance maximas (λ max) of 283 and 276 nm. M...

2008
Lebuhraya Tun Razak

− Nowadays, there are lots of classic and alternative method that has been used to obtain and compute transfer function for a linear network. Although, problems still occur especially in the number of nodes, loops and simultaneous equations that need to be solved by this approaches. A proposed approach called NIRE (Network-Impedance Relationship Equation) will solve these problems by developing...

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