نتایج جستجو برای: system of differential equation
تعداد نتایج: 21374467 فیلتر نتایج به سال:
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In this paper we present a numerical method for fuzzy differential equation of fractional order under gH-fractional Caputo differentiability. The main idea of this method is to approximate the solution of fuzzy fractional differential equation (FFDE) by an implicit method as corrector and explicit method as predictor. This method is tested on numerical examples.
this paper is concerned with investigation of vertical impedance function of a surface rigid circular foundation resting on a semi-infinite transversely isotropic alluvium. to this end, the equations of motion in cylindrical coordinate system, which because of axissymmetry are two coupled equations, are converted into one partial differential equation using a method of potential function. the g...
تحقیق حاضر در سه مرحله به تهیه و ارزیابی نانو الیاف حاوی داروی سیپروفلوکساسین هیدروکلراید(ciphcl)، به منظور التیام زخم های پوستی و سوختگی های بسیار شدید ،از پلیمر های زیست تخریب پذیر پلی وینیل الکل و پلی وینیل استات ، پرداخته است.بدین منظور در مرحله ی اول 5 مخلوط از محلول های pvac:pva با نسبت های جرمی 0:100 ، 25:75 ، 50:50 ، 75:25 و 100:0 ،در حلال های آبکی اسید استیک 40% ، 50% و 60% تهیه و سپس ...
In this paper, an efficient numerical scheme based on uniform Haar wavelets is used to solve the non-planar Burgers equation. The quasilinearization technique is used to conveniently handle the nonlinear terms in the non-planar Burgers equation. The basic idea of Haar wavelet collocation method is to convert the partial differential equation into a system of algebraic equations that involves a ...
abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...
here, adomian decomposition method has been used for finding approximateand numerical solutions of nonlinear differential difference equations arising inmathematical physics. two models of special interest in physics, namely, thehybrid nonlinear differential difference equation and relativistic toda couplednonlinear differential-difference equation are chosen to illustrate the validity andthe g...
assigning premium to the insurance contract in iran mostly has based on some old rules have been authorized by government, in such a situation predicting premium by analyzing database and it’s characteristics will be definitely such a big mistake. therefore the most beneficial information one can gathered from these data is the amount of loss happens during one contract to predicting insurance ...
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