Volume 23 (2023)
Volume 22 (2022)
Volume 21 (2021)
Volume 20 (2020)
Volume 19 (2019)
Volume 18 (2018)
Volume 17 (2017)
Volume 16 (2016)
Volume 15 (2015)
Volume 14 (2014)
Volume 13 (2013)
Volume 11 (2011)
Volume 10 (2010)
Volume 9 (2009)
Volume 8 (2008)
Volume 7 (2007)
Volume 6 (2006)
Volume 5 (2005)
Volume 4 (2004)
Design of ON-Line Tuned Idle Speed Controller for an Automotive Engine By Using NCD

Ali Majeed Mahmood

Volume 12, Issue 2 , December 2012, Page 1-8

  Abstract: This paper attempts to tune any controller without the knowledge of mathematical model for the system to be controlled. For that purpose, the optimization algorithm of MATLAB / Nonlinear Control Design Blockset (NCD) is adapted for On-line tuning for controller parameters. To present the methodology, ...  Read More ...

Information Hiding in Image Based on Random Locations

Mohsin H. AL-Zohairi

Volume 12, Issue 2 , December 2012, Page 9-15

  Abstract: Network Security for data transmission is the most vital issue in modern communication systems. This paper discusses a new steganographic technique and the effectiveness of the proposed method is described through which the idea of enhanced security of data can be achieved. To hide data in ...  Read More ...

Transient Voltage Stability Enhancement Using Fuzzy Logic Controller Techniques *

Dr. Majli Nema Hawas; Abdullah Yaseen Abbas

Volume 12, Issue 2 , December 2012, Page 16-27

  Abstract: This paper discusses the transient voltage stability of a synchronous generator at its bus in a power system with a detailed transient modeling for the generator after being subjected to a three phase fault, and designing a Takagi-Sugeno first order fuzzy logic controller with center of area ...  Read More ...

Development a 3-D Mathematical Model for Network Topology Based on Graph Theory*

Dr. Laith Jasim Saud

Volume 12, Issue 2 , December 2012, Page 28-34

  Abstract: Communication network efficiency depends upon many factors among which is the “Topology” which makes topology optimization an important issue to care for. One important thing in optimization problems is the formulation of objective functions. For the case of topology design it is not a ...  Read More ...

Study of the Influence of Mechanical Parameters on the Behavior and Response of Electromagnetic Servo Relay (ESR)

Yaakob Karomy HANNA; M. Sc; Eng; Dr. Ayad Ghazi Nasir Al-Shamary; Dr. Eng. Saad A-R. MAKKI

Volume 12, Issue 2 , December 2012, Page 35-46

  Abstract: The Relay is widely used in civil, industrial and military equipment. The Relay is considered to be one of the indispensable actuators for electric power and control flying objects and systems. Relays reliability strongly influences the system reliability. The mathematical model of the servo ...  Read More ...

Human Authentication with Earprint for Secure Telephone System

Raid R. Al-Nima

Volume 12, Issue 2 , December 2012, Page 47-55

  Abstract: This paper describes the design and development of a prototype system for the automatic authentication of an individual based on the human ear patterns. Information at the feature extraction and at the confidence level, where the matching scores are reported by Probabilistic neural network, ...  Read More ...

Text-Dependent Audio Biometric Person Authentication

Ekhlas Falih Naseer

Volume 12, Issue 2 , December 2012, Page 56-68

  Abstract: Audio biometric person authentication is the task of verifying the identity of a person based on the information in the speech signal that occurs during the production of speech. In this research, audio person authentication is focus on acoustic text-dependent speaker verification system. The ...  Read More ...

Enhanced Genetic Algorithm Based on Node Codes for Mobile Robot Path Planning

Dr. Mohamed Jasim Mohamed; Mrs. Farah S. Khoshaba

Volume 12, Issue 2 , December 2012, Page 69-80

  Abstract: In this paper, a new Enhanced Genetic Algorithm (EGA) is used to find the best global path planning for a mobile robot according to a specific criterion. The EGA is enhanced by a new encoding method, new initial population creation method, new crossover and mutation operations as well as ...  Read More ...

Optimal Controller Design for Dynamic Systems with Perturbed Time-Varying Delay

Dr. Asmaa Q. Shareif; Dr. Abdulsalam H. Nafia

Volume 12, Issue 2 , December 2012, Page 81-89

  Abstract: In this paper, a controller design is proposed to control systems subjected to uncertainties and perturbed time-varying delay. The proposed controller strategy is composed of three parts, the linear state feedback part is used for assigning the closed loop eigenvalues, and the nonlinear switching ...  Read More ...

PID Controller Configuration and Tuning Based on Genetic Algorithms

Salih M. Attya; Dr. Mohammed H. Al-Jammas; Dr. Mazin Z. Othman

Volume 12, Issue 2 , December 2012, Page 90-97

  Abstract-- In this work, the power of the Genetic Algorithms (GA) in searching for an optimal solution (in a pre-determined hyper space) is used to design the suitable configuration and parameters of the Proportional-Integral-Derivative (PID) controller. In most industrial plants, the PID controllers ...  Read More ...