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 42 (2008)
Volume 41 (2007)
مطالعات ساختاری- اقتصادی طرح ارتقای سیستم انتقال 63 کیلوولت دو مداره سراوان – سوران به سطح 230 کیلوولت

Mohammad Tavakkoli Bina; Mehdi Sirjani; Danyal Ahmadi

Volume 43, Issue 5 , September 2009, Pages 597-609

https://doi.org/10.22059/jac.2013.7722

Abstract
  Upgrading the voltage level of a transmission line is named as one solution to increase the transmitted power. This paper introduces the results of a research project in which the upgrade of Saravan-Sooran double circuit transmission system from 63 kV to 230 kV is studied. In this context, the towers ...  Read More

اثر DVR بر بهبود کمبود و بیشبود ولتاژ سیستم توزیع در شرایط هارمونیکی (یادداشت فنی)

Arash Tavighi; Saeed Afsharnia; Hassan Monsef

Volume 43, Issue 5 , September 2009, Pages 611-617

https://doi.org/10.22059/jac.2013.7723

Abstract
  Today, with attention to increase in sensitive electrical equipments application in distribution networks and their susceptibility to the power quality deficiencies, the protection necessity of sensitive loads against undesirable effects of these disturbances are in focus. So, in this paper voltage sag ...  Read More

بهبود پایداری شبکه قدرت با روش جدید حذف بار ترکیبی

Amir Pirouz Ghale; Majid Sanaye Pasand; Hamed Asadi

Volume 43, Issue 5 , September 2009, Pages 619-633

https://doi.org/10.22059/jac.2013.7724

Abstract
  Power system blackouts have become a serious problem for electric utilities especially in recent years. Different forms of system instability have emerged in recent blackouts, such as voltage instability and frequency instability. To counteract each form of system instability, special algorithms have ...  Read More

یک روش جستجوی دو- مرحله‌ای برای همزمانی سریع سیستم‌های باند فوق وسیع در محیط‌های چندمسیره

Ahmad Saghafi; Seyyed Mehdi Fakhraee; Manoochehr Manteghi

Volume 43, Issue 5 , September 2009, Pages 635-646

https://doi.org/10.22059/jac.2013.7725

Abstract
  Ultra-wideband (UWB) radio is a promising technology for low-cost, high-rate communications at short ranges. However, high bandwidth and low power of the UWB signals impose some difficult challenges in signal processing and implementation of the receiver. Acquisition of the signal timing is the first ...  Read More

کاهش رنگ تصاویر با شبکه‌های عصبی خودسامانده چندمرحله‌ای و ویژگی‌های افزونه

Javad Rasti; Seyyed Amir Monajjemi; Abbas Vafaei

Volume 43, Issue 5 , September 2009, Pages 647-658

https://doi.org/10.22059/jac.2013.7726

Abstract
  Reducing the number of colors in an image while preserving its quality, is of importance in many applications such as image analysis and compression. It also decreases memory and transmission bandwidth requirements. Moreover, classification of image colors is applicable in image segmentation and object ...  Read More

مکان یابی وفقی موبایل به روش آزمون باقی‌مانده

Parna Shabestari; Mohammad Hossein Kahaei

Volume 43, Issue 5 , September 2009, Pages 659-667

https://doi.org/10.22059/jac.2013.7727

Abstract
  Determination of mobile localization with time of arrival (TOA) signal is a requirement in cellular mobile communication. In some of the previous methods, localization with non-line-of-sight (NLOS) paths can lead to large position error. Also for simplicity, in most simulations suppose non stationary ...  Read More

مدل‌سازی و شبیه سازی خطاهای سیم بندی استاتور موتور القایی قفس سنجابی با استفاده از روش مدار معادل مغناطیسی

Karim Abbaszadeh; Mohammad Ardebili; Esmaeel Sarani

Volume 43, Issue 5 , September 2009, Pages 669-679

https://doi.org/10.22059/jac.2013.7728

Abstract
  Induction Motor especially the squirrel cage type of this motor plays important role in industry. According to the application type, this motor place against various stresses that are caused failure in the motor. The most common failure is related to the Stator winding. Among these failures are turn-to-turn, ...  Read More

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

https://doi.org/10.22059/jac.2013.7729

Abstract
  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