Scientific and Technical Bulletin, Series: Electrotechnics, Electronics, Automatic Control and Computer Science

The Electrotechnics, Electronics, Automatic Control and Computer Science series of the Scientifical and Technical Bulletin of the "Aurel Vlaicu" University of Arad will devote itself to the dissemination of the original research results, technical advances and new items in Electrical and Computers Engineering and in Knowledge Engineering.

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Associate Editors:

Rajeeb Dey, National Institute of Technology, Silchar, Assam, India

Jude Hemanth, Karunya University , Tamilnadu, India

Ali Reza Khanteymoori, University of Zanjan, Iran

Tsung-Chih Lin - Feng Chia University Taichung, Taiwan 

Nicolae Popescu-BodorinUniversity of South-East Europe “Lumina”,

Bucharest, Romania 

Shahabodin Shamshirband, University of Malaya, Malaysia

 

Editorial Board:

Ahmad Taher Azar - Misr University for Science & Technology (MUST),  6th of October City (Egypt)

Jair Minoro Abe - Instituto de Ciências Exatas e Tecnologia, São Paulo (Brazil)

Preeti Bajaj - G. H. Raisoni College of Engineering, Nagpur (India)

Cristina Băla - "Aurel Vlaicu" University of Arad (Romania)

Marius M. Bălaş - "Aurel Vlaicu" University of Arad (Romania)

Mokhtar Beldjehem - St. Anne's University (Canada)

Nicolae Budişan - Politehnica University of Timişoara (Romania)

Cornel Barna - Contact Plus SRL Arad (Romania)

Pamela McCauley Bush - University of Central Florida (USA)

Marius Buzera - Technical College "Gheorghe Magheru" Tg. ‑Jiu (Romania)

Sheng-Luen Chung - NTUST Taipei (Taiwan)

Mircea Ciugudean - Politehnica University of Timişoara (Romania)

Mihaela Costin - Romanian Academy, Computer Science Institute, Iaşi (Romania)

Radu Dogaru - Politehnica University of Bucharest (Romania)

Toma L. Dragomir - Politehnica University of Timişoara (Romania)

Ioan Dzitac - "Aurel Vlaicu" University of Arad (Romania)

Simona Dzitac - University of Oradea (Romania)

Jean Duplaix - Université du Sud Toulon-Var, Toulon (France)

Michael C. Fairhurst - University of Kent (UK)

Florin Filip - Romanian Academy (Romania)

Janos Fodor - Budapest Tech (Hungary)

Voicu Groza - University of Ottawa (Canada)

Hacene Habbi - University of Boumerdès (Algier)

Chihab Hanachi - IRIT Laboratory, University Toulouse (France)

Lakhmi C. Jain - University of South Australia, Adelaide (Australia)

Jan Jantzen - Technical University of Denmark, Kongens Lyngby (Denmark)

Laszlo T. Koczy - University of T. E., Budapest and S. I. University Győr (Hungary)

Ioan Emeric Köles - "Aurel Vlaicu" University of Arad (Romania)

Sumathy Krishnan - North Dakota State University, Fargo, (USA)

Chung-Hsien Kuo - NTUST Taipei (Taiwan)

Veljko Milutinovic - University of Belgrade (Serbia)

Dorothy N. Monekosso - Kingston University, Kingston upon Thames (UK)

Costin Miron - Technical University Cluj-Napoca (Romania)

Valentin Muller - "Aurel Vlaicu" University of Arad (Romania)

Kazumi Nakamatsu - University of Hyogo (Japan)

Viorel Nicolau - Dunărea de Jos University of Galaţi (Romania)

Stephan Olariu - Old Dominion University, Norfolk (USA)

Onisifor Olaru - "Constantin Brancussy" University, Tg. -Jiu (Romania)

Felix Riesco-Pelaez - University of León (Spain)

Emil Petriu - University of Ottawa (Canada)

Daniela E. Popescu - University of Oradea (Romania)

Dumitru Popescu - Politehnica University of Bucharest (Romania)

Ales Prochazka - Institute of Chemical Technology Prague (Czech Republic)

Octavian Proştean - Politehnica University of Timişoara (Romania)

Anca Ralescu - University of Cincinnati (U. S.A.)

Dan Ralescu - University of Cincinnati (U. S.A.)

Sahondranirina Ravonialimanana - Universite de Fianarantsoa (Madagascar)

Mehdi Roopaei - University of Shiraz (Iran) University of Texas at San Antonio, USA

Imre Rudas – Obuda University Budapest (Hungary)

Rudolf Seising - European Centre for Soft Computing, Mieres, (Spain) Friedrich-Schiller-University Jena, Germany

Fuqian Shi - Zhejiang University, (China)

Kostas Sirlantzis - University of Kent (UK)

Tiberiu Spircu - "Carol Davila" University of Medicine and Pharmacy, Bucharest (Romania)

Michio Sugeno - Doshisha University, Kyoto (Japan)

Horia Nicolai Teodorescu - "Gheorghe Asachi" Technical University Iaşi (Romania)

Mohamed Tounsi - Prince Sultan University, Riyadh (Saudi Arabia)

Annamaria Varkoniy-Koczy – Obuda University Budapest (Hungary)

Pandian Vasant - Petronas University of Technology (Malaysia)

Mircea Vlăduţiu - Politehnica University of Timişoara (Romania)

Djuro G. Zrilic - New Mexico Highlands University (USA)

Editorial Manager

Corina Mnerie - "Aurel Vlaicu" University of Arad (Romania)

Vasile Topac – “Aurel Vlaicu” University of Arad (Romania)


Vol 5, No 4 (2008): Scientific and Technical Bulletin

Full Issue

View or download the full issue Vol 5, No 4 (2008)

Table of Contents

Articles

Valentina Emilia BĂLAŞ, Marius BĂLAȘ
7 - 14
Marius BĂLAȘ, Valentina BĂLAȘ
15 - 26
Cornel BARNA
27 - 34
Marius BUZERA, Lucian GAL, Zorela REBEDEA
35 - 44
Solo RANDRIAMAHALEO, RAFILIPOJAONA ., Sahondra RAVONIALIMANANA
45 - 58