Effects of Thermal Diffusion and Radiation on Magnetohydrodynamic (MHD) chemically reacting ... - تاریخ: 1397/12/3 ساعت: 16:45
An analysis has been conceded to study the effects of Soret and thermal radiation effects on magnetohydrodynamic convective flow of a viscous, incompressible, electrically conducting fluid with heat and mass transfer over a plate with time dependent suction velocity in a slip flow regime in the pres...
Thermoelastic Vibration of Temperature-Dependent Nanobeams Due to Rectified Sine Wave ... - تاریخ: 1397/12/3 ساعت: 16:45
In this study, the second type of Green and Naghdi's thermoelasticity theory is applied to present the vibration of a nanobeam subjected to rectified sine wave heating based upon the nonlocal thermoelasticity theory. Both Young's modulus and thermal conductivity are considered to be linear functions...
A Note on Free Vibration of a Double-beam System with Nonlinear Elastic Inner Layer - تاریخ: 1397/12/3 ساعت: 16:45
In this note, small amplitude free vibration of a double-beam system in presence of i er layer nonlinearity is investigated. The nonlinearity is due to i er layer material and is not related to larg
Bending and Free Vibration Analysis of Functionally Graded Plates via Optimized Non-polynomial ... - تاریخ: 1397/12/3 ساعت: 16:45
Optimization concept in the context of shear deformation theories was bo for the development of accurate models to study the bending problem of structures. The present study seeks to extend such an
Fractional Thermoelasticity Model of a 2D Problem of Mode-I Crack in a Fibre-Reinforced Thermal ... - تاریخ: 1397/12/3 ساعت: 16:45
A model of fractional-order of thermoelasticity is applied to study a 2D problem of mode-I crack in a fibre-reinforced thermal environment. The crack is under prescribed distributions of heat and pressure. The normal mode analysis is applied to deduce exact formulae for displacements, stresses, and ...
Accuracy Assessment of Ultrasonic C-scan and X-ray Radiography Methods for Impact Damage ... - تاریخ: 1397/12/3 ساعت: 16:45
The present study introduces two quantitative parameters to compare the accuracy of ultrasonic C-scan testing and X-ray radiography methods in the damaged area detection under low-velocity impact in p
Generalized 2-Unknown’s HSDT to Study Isotropic and Orthotropic Composite Plates - تاریخ: 1397/12/3 ساعت: 16:45
The present study introduces a generalized 2-unknown’s higher order shear deformation theory (HSDT) for isotropic and orthotropic plates. The well-known Shimpi’s two-unknown's HSDT is repr
Experimental Study on the Surface Modification by Electrical Discharge Process - تاریخ: 1397/12/3 ساعت: 16:45
The creation of modified layer on metal surfaces using new methods is one of the procedures in surface engineering which can improve the surface mechanical properties. The electrical discharge process
Buckling and Postbuckling of Concentrically Stiffened Piezo-Composite Plates on Elastic Foundations - تاریخ: 1397/12/3 ساعت: 16:45
This research presents the modeling and analysis for the buckling and postbuckling behavior of sandwich plates under thermal and mechanical loads. The lay-up configurations of plates are laminated com
Analysis of Fluid Dynamics and Heat Transfer in a Rectangular Duct with Staggered Baffles - تاریخ: 1397/12/3 ساعت: 16:45
This computational fluid dynamic analysis attempts to simulate the incompressible steady fluid flow and heat transfer in a solar air cha el with wall-mounted baffles. Two ꞌSꞌ-shaped baffles, having d
NURBS-Based Isogeometric Analysis Method Application to Mixed-Mode Computational Fracture Mechanics - تاریخ: 1397/12/3 ساعت: 16:45
An interaction integral method for evaluating mixed-mode stress intensity factors (SIFs) for two dimensional crack problems using NURBS-based isogeometric analysis method is investigated. The interact
On the Buckling Response of Axially Pressurized Nanotubes Based on a Novel Nonlocal Beam Theory - تاریخ: 1397/12/3 ساعت: 16:45
In the present study, the buckling analysis of single-walled carbon nanotubes (SWCNT) on the basis of a new refined beam theory is analyzed. The SWCNT is modeled as an elastic beam subjected to unidirectional compressive loads. To achieve this aim, the new proposed beam theory has only one unknown v...
Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent ... - تاریخ: 1397/12/3 ساعت: 16:45
In the present study, the conjugate turbulent free convection with the thermal surface radiation in a rectangular enclosure bounded by walls with different thermophysical characteristics in the presen
High Order Compact Finite Difference Schemes for Solving Bratu-Type Equations - تاریخ: 1397/12/3 ساعت: 16:45
In the present study, high order compact finite difference methods is used to solve one-dimensional Bratu-type equations numerically. The convergence analysis of the methods is discussed and it is shown that the theoretical order of the method is consistent with its numerical rate of convergence. Th...
Experimental Study of the Residual Stresses in Girth Weld of Natural Gas Transmission Pipeline - تاریخ: 1397/12/3 ساعت: 16:45
In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have good mechanical properties. Resid
A Novel Approach for Korteweg-de Vries Equation of Fractional Order - تاریخ: 1397/12/3 ساعت: 16:45
In this study, the localfractional variational iterationmethod (LFVIM) and the localfractional series expansion method (LFSEM) are utilized to obtain approximate solutions for Korteweg-de Vries equation (KdVE) within local fractionalderivative operators (LFDOs). The efficiency of the considered meth...
Numerical Investigation of the Effect of Bubble-Bubble Interaction on the Power of Propagated ... - تاریخ: 1397/12/3 ساعت: 16:45
The study of bubble dynamics, especially the interaction of bubbles, has drawn considerable attention due to its various applications in engineering and science. Meanwhile, the study of the oscillatio
فرمول لیفشیتز با استفاده از روش بازبهنجارش جعبه - تاریخ: 1397/12/3 ساعت: 16:45
در این مقاله فرمول لیفشیتز برای انرژی کازیمیر بین دو دیالکتریک در دمای صفر مطلق با استفاده از روش بازبهنجارش جعبه به دست می آید. هر چند که برای محاسبه نیروی کازمیر در این مورد در منابع مختلف اثبات ها
اثربخشی شناخت درمانی مبتنی بر ذهن آگاهی بر خستگی، ... - تاریخ: 1397/10/4 ساعت: 20:47
این پژوهش با هدف بررسی اثربخشی و شناخت و درمانی و مبتنی و بر ذهن آگاهی و بر خستگی، و اضطراب و افسردگی کارکنان دارای سندرم خستگی مزمن دانشگاه آزاد اصفهان (خوراسگان) به مرحله اجرا در آمد. روش پژوهش نیمه آزمایشی از
موانع حقوقی الحاق ایران به سازمان جهانی تجارت - تاریخ: 1397/10/4 ساعت: 20:47
سازمان و جهانی و تجارت و یکی از مهمترین سازمانهای بین­المللی تأثیرگذار در سطح بین­المللی به شمار میرود که آزادسازی و قاعده­مندسازی تجارت جهانی را عهده­دار می­باشد. این سازمان از اوّل