Volume 55 (2023)
Volume 54 (2022)
Volume 53 (2021)
Volume 52 (2020)
Volume 51 (2019)
Volume 50 (2018)
Volume 49 (2017)
Volume 48 (2016)
Volume 47 (2016)
Volume 46 (2015)
Volume 45 (2014)
Volume 44 (2013)
Volume 43 (2009)
Volume 42 (2008)
Volume 41 (2007)
هینه‌سازی مسیر‌ هاد‌ی‌های انتقال در محفظه فلزی تجهیزات الکتریکی مبتنی بر سازگاری الکترومغناطیسی با استفاده از روش تصمیم‌گیری چند معیاره مطالعه موردی: سیستم تزریق جریان 25 کیلو آمپر

Faramarz Faghihi; Hossein Heydari; Vahid Abbasi

Volume 43, Issue 5 , September 2009, , Pages 681-691


  The higher frequency transient signals generated as a result of a power system fault or disturbance provide the basis for an alternative approach to power system containing connectors and cables result in unsuitable operation of the system. However one major challenge is the need to ensure that the transients ...  Read More

مدل‌سازی اجزای محدود برش ماده فولادی با جت آب دارای ذرات برنده

Mehdi Takaffoli; Aghil Yusefikoma

Volume 43, Issue 4 , September 2009, , Pages 489-499


  Numerical modeling of machining processes is of significance in the parametric analysis and optimization of their performance. In this paper, a finite element-based model of abrasive waterjet (AWJ) cutting of a ductile material is presented with the help of an explicit, nonlinear finite element method. ...  Read More

تحلیل سه‌بعدی اکستروژن مستقیم با روش قاچی و المان محدود

Amin Samadi Ghoushchi; Caren Abrinia; Mohammad Kazem Besharati Givi

Volume 43, Issue 4 , September 2009, , Pages 527-535


  Slab method of analysis has been used for solving metal forming problems for a long time. However it has been restricted to plane strain and axisymmetric problems due to limitations in its formulations. In this paper a new formulation has been proposed so that it could be applied to three dimensional ...  Read More

تحلیل و طراحی تغییر دهنده فاز N - بیتی MEMS توزیع شده در باند Ka

Habibollah Zolfkhani; Jalil Rashed Mohassel; Farrokh Hojjat Kashani

Volume 41, Issue 5 , December 2007, , Pages 623-630


  Modern microwave and millimeter wave phased array antennas are attractive because of their ability to steer wave beams in space without physically moving the antenna element. A typical phased array antenna may have several thousand elements fed by a phase shifter for every antenna, which can steer the ...  Read More

شبیه سازی سه بعدی فرایند اکستروژن مستقیم خارج از مرکز با روش اجزاء محدود و مقایسه با نتایج تجربی

Caren Abrinia; Jalal Pour Hosseini Baboddashti

Volume 41, Issue 4 , November 2007, , Pages 369-377


  In this paper the eccentric forward extrusion of sections has been simulated and analyzed using FEM Abaqus-explicit. The results have been compared to those obtained from upper bound theorem and experimental works. Close agreements was observed between the FEM and experimental work and as compared with ...  Read More