شادان صدیق بهزادی

دانشگاه آزاد اسلامی واحد قزوین

[ 1 ] - Application of variational iteration method for solving singular two point boundary value problems

In this paper, He's highly prolic variational iteration method is applied ef-fectively for showing the existence, uniqueness and solving a class of singularsecond order two point boundary value problems. The process of nding solu-tion involves generation of a sequence of appropriate and approximate iterativesolution function equally likely to converge to the exact solution of the givenproblem w...

[ 2 ] - The Use of Fuzzy Variational Iteration Method For Solving Second-Order Fuzzy Abel-Volterra Integro-Differential Equations‎

In this paper, fuzzy variational iteration method (FVIM) is proposed to solve the second- order fuzzy Abel-Volterra integro-differential equations. The existence and uniqueness of the solution and convergence of the proposed method are proved in details. is investigated to verify convergence results and to illustrate the efficiently of the method.

[ 3 ] - Application of iterative method for solving fuzzy Bernoulli equation under generalized H-differentiability

In this paper, the Picard method is proposed to solve the Bernoulli equation with fuzzy initial condition under generalized H-differentiability. The existence and uniqueness of the solution and convergence of the proposed method are proved in details. Finally an example shows the accuracy of this method.

[ 4 ] - Optimization of Solution Regularized Long-wave Equation by Using Modified Variational Iteration Method

In this paper, a regularized long-wave equation (RLWE) is solved by using the Adomian's decomposition method (ADM) , modified Adomian's decomposition method (MADM), variational iteration method (VIM), modified variational iteration method (MVIM) and homotopy analysis method (HAM). The approximate solution of this equation is calculated in the form of series which its components are computed by ...

[ 5 ] - ارزیابی کارایی سود در زنجیره تامین سه مرحله ای با خروجی های برگشت داده شده با تکنیک تحلیل پوششی داده ها

 مدیریت زنجیره تامین برای مدیران سازمان های مختلف به منظور بهبود عملکرد آن سیستم ها یک امر حائز اهمیت است. از جمله موارد این مدیریت آنالیز، تحلیل، و بررسی  هر یک از مراحل یک زنجیره تامین می باشد. ارزیابی یک زنجیره به صورت "جعبه سیاه" به منظور مدیریت آن نمی تواند اطلاعات دقیقی برای تعیین استراتژی و هدف گزاری ارایه دهد. لذا لزوم به استفاده از  تکنولوژی‌ها و ابزارهای جدید جهت تحلیل کل زنجیره و هر ...

[ 6 ] - MULTI-OBJECTIVE LOCATION-ROUTING MODEL WITH MULTIPLE TRANSPORTATION MODES FOR DESIGNING RELIEF NETWORKS UNDER UNCERTAINTY

Natural disasters and crisis are inevitable and each year impose destructive effects on human as injuries and damage to property. In natural  disasters and after the outbreak of the crisis, demand for logistical goods and services increase. Effective distribution of emergency aid could have a significant role in minimizing the damage and fatal accident. In this study, a three-level relief chain...

[ 7 ] - Optimization of solution stiff differential equations using MHAM and RSK methods

In this paper, a nonlinear stiff differential equation is solved by using the Rosenbrock iterative method, modified homotpy analysis method and power series method. The approximate solution of this equation is calculated in the form of series which its components are computed by applying a recursive relations. Some numerical examples are studied to demonstrate the accuracy of the presented meth...

[ 8 ] - Improving adaptive resolution of analog to digital converters using least squares mean method

This paper presents an adaptive digital resolution improvement method for extrapolating and recursive analog-to-digital converters (ADCs). The presented adaptively enhanced ADC (AE-ADC) digitally estimates the digital equivalent of the input signal by utilizing an adaptive digital filter (ADF). The least mean squares (LMS) algorithm also determines the coefficients of the ADF block. In this sch...