European Journal of Scientific Research ISSN: 1450-216X Volume 18, No 2 September, 2007 Editor-In-chief or e Adrian M. Steinberg, Wissenschaftlicher Forscher Editorial Advisory Board e Parag Garhyan, Auburn University Morteza Shahbazi, Edinburgh University Raj Rajagopalan, National University of Singapore Sang-Eon Park, Inha University Said Elnashaie, Auburn University Subrata Chowdhury, University of Rhode Island Ghasem-Ali Omrani, Tehran University of Medical Sciences Ajay K. Ray, National University of Singapore Mutwakil Nafi, China University of Geosciences Felix Ayadi, Texas Southern University Bansi Sawhney, University of Baltimore David Wang, Hsuan Chuang University Cornelis A. Los, Kazakh-British Technical University Jatin Pancholi, Middlesex University Teresa Smith, University of South Carolina Ranjit Biswas, Philadelphia University Chiaku Chukwuogor-Ndu, Eastern Connecticut State University John Mylonakis, Hellenic Open University (Tutor) M. Femi Ayadi, University of Houston-Clear Lake Emmanuel Anoruo, Coppin State University H. Young Baek, Nova Southeastern University Dimitrios Mavridis, Technological Educational Institure of West Macedonia Mohand-Said Oukil, Kind Fhad University of Petroleum & Minerals Jean-Luc Grosso, University of South Carolina Richard Omotoye, Virginia State University Mahdi Hadi, Kuwait University Jerry Kolo, Florida Atlantic University Leo V. Ryan, DePaul University As of 2005, European Journal of Scientific Research is indexed in ULRICH, DOAJ and CABELL academic listings.