Volume 18 (2024)
Volume 17 (2023)
Volume 16 (2022)
Volume 15 (2021)
Volume 14 (2020)
Volume 13 (2019)
Volume 12 (2018)
Volume 11 (2017)
Volume 10 (2016)
Volume 9 (2015)
Volume 8 (2014)
Volume 7 (2013)
Volume 6 (2012)
Volume 5 (2011)
Volume 4 (2010)
Volume 2 (2008)
Volume 1 (2007)
Robust Control Design for Multi Variable Singular Perturbation Systems

Fatemeh Jamshidi; Mehdi Ghasem Moghadam

Volume 3, Issue 3 , March 2009, Pages 1-8

https://doi.org/10.1234/mjee.v3i3.242

Abstract
  In this paper the robust control of multi variable singular perturbation systems is studied. In order to robust the control of the system, only the additive modeling error is considered. Based on the above bounds of modeling error and the Nyquist criteria and in order to improve the performance of the ...  Read More

Characterization of Fabricated Photonic Crystal Fibers Using Effective Index Method

Faramarz Seraji

Volume 3, Issue 3 , March 2009, Pages 9-19

https://doi.org/10.1234/mjee.v3i3.70

Abstract
  In this paper, the characteristics of photonic crystal fibers (PCFs), which have been experimentally determined in the last few years in Iran's Telecom Research Center are analyzed and compared theoretically using an effective index method. The PCFs under investigation are fabricated with a high speed ...  Read More

Performance Analysis of an Image Watermarking Approach Based on Sample Rotation with Wavelet Transformation

Azizollah Jamshidi; Sajad Tabatabaee; Ali Akhaee

Volume 3, Issue 3 , March 2009, Pages 21-32

https://doi.org/10.1234/mjee.v3i3.79

Abstract
   This paper presents a simple watermarking approach based on the rotation of low frequency components in image blocks. The rotation process is performed with less distortion by projecting the samples on specific lines according to their message bit. To optimize the detection, the Maximum Likelihood ...  Read More

ECG Signals Classification Based on Wavelet Transform and Probabilistic Neural Networks

Iman Moazen; Mohamadreza Ahmadzadeh

Volume 3, Issue 3 , March 2009, Pages 33-40

https://doi.org/10.1234/mjee.v3i3.245

Abstract
   In this paper a very intelligent tool with low computational complexity is presented for Electroencephalogram (ECG) signal classification. The proposed classifier is based on Discrete Wavelet Transform (DWT) and Probabilistic Neural Network (PNN). The novelty of this approach is that signal statistics, ...  Read More

The Optimal Locating of Power Controller in Transmission Line With Consideration of Optimal Power Flow

Mostafa Eidiani

Volume 3, Issue 3 , March 2009, Pages 41-52

https://doi.org/10.1234/mjee.v3i3.116

Abstract
  In this paper two power elements for power controller in transmission line are presented: Variable Frequency Transformer (VFT) and Rotary Power Flow Controller (RPFC). In addition, here a new Optimal Power Flow (OPF) with these elements is presented. In this paper, it has been made use of the Impedance ...  Read More

A New Segmentation Method for Persian/Arabic OCR Based on Baseline Processing

Mahboubeh Shamsi; Reza Rasouli; Soudeh Shadravan

Volume 3, Issue 3 , March 2009, Pages 53-61

https://doi.org/10.1234/mjee.v3i3.155

Abstract
  One of the most important stages in Character Recognition Systems is “Segmentation”, because any mistake will affect to all other tasks, especially to character recognition. This operation is more complex in Persian/Arabic writing than other Latin writing like English, and there has been an ongoing ...  Read More

An Improved Adaptive Genetic Algorithm for Job Scheduling Problem on Parallel Robots

Gohar Vahdati; Maryam Habibipour; Saeed Tousizadeh; Mahdi Yaghoubi

Volume 3, Issue 3 , March 2009, Pages 63-70

https://doi.org/10.1234/mjee.v3i3.105

Abstract
  Minimizing mean tardiness  by Job scheduling on parallel robots is very important in the scheduling domain. In this problem, there is a series of n-number independent jobs which are ready to be scheduled at the time of zero. Corresponding to each work, the processing time and duration date are determined. ...  Read More

Improvement of Torque Response and Reduction of Error Speed in Direct Torque Control of Induction Motor by Fuzzy Logic

HamidReza Fakharizadeh

Volume 3, Issue 3 , March 2009, Pages 71-77

https://doi.org/10.1234/mjee.v3i3.174

Abstract
   In this paper, the direct torque control (DTC) technique is used for the speed control of induction motors, and then fuzzy logic is used for designing the speed controller, the improvement of torque response and the reduction of the speed error. The DTC method is utilized due to its quick torque response ...  Read More