نتایج جستجو برای: differential transformationmethod dtm

تعداد نتایج: 286213  

Journal: :GIS v Sloveniji 2022

The book Preteklost in prihodnost ('The past and the future') is sixteenth volume GIS v Sloveniji (GIS Slovenia) series commemorates its 30th anniversary. goal of to present wide variety research findings on geographical information systems Slovenia recent years. Powerful geoinformatic tools precise data facilitate processes phenomena, their modelling. presents project outputs results areas suc...

Journal: :iranian journal of toxicology 0
anita gajraj reproductive toxicology unit, center for advance studies, department of zoology, university of rajashan, jaipur. india suresh joshi reproductive toxicology unit, center for advance studies, department of zoology, university of rajashan, jaipur. india

introduction: pyrethroids are important insecticides because of their high activity and low mammalian toxicity. some studies have demonstrated that these insecticides, especially compounds with an -cyano group, produce toxic effects on various biological systems. deltamethrin (dtm) is a type ii synthetic pyrethroid insecticide containing -cyano group and is used worldwide in agriculture, home...

Journal: :International Journal of Mathematics and Mathematical Sciences 2022

In this article, we apply the Daftardar-Gejji and Jafari method (DJM) to solve multispecies Lotka–Volterra equation. A comparison between DJM, differential transformation (DTM), variational iteration (VIM), Adomian decomposition (ADM) shows that DJM is a reliable powerful for solving nonlinear equations. The efficiency applicability of are confirmed by considering some examples. proposed proced...

2013
A. R. Nazemi S. Hesam A. Haghbin

In the modeling of a large class of problems in science and engineering, the minimization of a functional is appeared. Finding the solution of these problems needs to solve the corresponding ordinary differential equations which are generally nonlinear. In recent years, differential transform method has been attracted a lot of attention of the researchers for solving nonlinear problems. This me...

2015
Cao Limei

This paper investigates an analytical analysis for the flow and heat transfer in a viscous fluid over a nonlinear stretching sheet. The governing partial differential equations are transformed into coupled nonlinear differential equations by introducing a similarity transformation. The asymptotic analytical solutions are obtained by using differential transform method-basic functions (DTM-BF). ...

2013
Davood DOMIRI GANJI Mohammadreza AZIMI Davood Domiri Ganji Mohammadreza Azimi

In this paper, the MHD Jeffery Hamel problem with nanoparticles for various values of Hartmann number has been investigated. The present study discusses about the velocity profile in the steady 2-dimensional flow of a MHD fluid with nanoparticles between two nonparallel walls. At first a similarity transformation is used to reduce the partial differential equations modeling the flow, to a singl...

Journal: :Journal of new theory 2022

The main purpose of this work is to provide a new approximation method, the so-called parameterised differential transform method (PDTM), for solving high-order boundary value problems (HOBVPs). Our based on classical and differs from it by calculating coefficients solution, which has form series. We applied proposed fourth-order substantiate it. resulting solution graphically compared with exa...

Journal: :Computers & Mathematics with Applications 2011
M. Keimanesh Mohammad Mehdi Rashidi Ali J. Chamkha R. Jafari

In this paper, the multi-step differential transform method (MDTM), one of the most effective method, is implemented to compute an approximate solution of the system of nonlinear differential equations governing the problem. It has been attempted to show the reliability and performance of the MDTM in comparison with the numerical method (fourth-order Runge–Kutta) and other analytical methods su...

Journal: :Clinical physiology and functional imaging 2011
Naser Ahmadi Gary L McQuilkin Mohammad W Akhtar Fereshteh Hajsadeghi Stanley J Kleis Harvey Hecht Morteza Naghavi Matthew Budoff

BACKGROUND Previous studies demonstrated that digital thermal monitoring (DTM) of vascular reactivity, a new test for vascular function assessment, is well correlated with Framingham Risk Score, coronary calcium score and CT angiography. This study evaluates the variability and reproducibility of DTM measurements. We hypothesized that DTM is reproducible, and its variability falls within the ac...

2016
K. SENTHILKUMAR

This paper is devoted to introduce analytic solutions by Differential Transform Method-Pade approximants with theoretical study for the problem of the hydromagnetic flow due to a permeable stretching surface embedded in a porous medium in the presence of transverse magnetic field. The governing momentum equation which is a nonlinear partial differential equation is reduced into a nonlinear ordi...

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