International Journal of Engineering Science and Technology Development (IJEST), published every four month, is a carefully refereed international publication. Contributions of high technical merit are to span the breadth of science and engineering disciplines; covering the main areas of science and engineering : Engineering, Computer Science, Architecture, Mathematics and Statistics Applications, Chemistry, Physics, Biology, Geology. International Journal of Engineering Science and Technology Development (IJEST) published contributions under regular papers, invited review papers, short communications, technical notes, and letters to the editor. Book reviews, reports of and/or call for papers of conferences, symposia and meetings, and advances in research equipment could also be published in this journal with minimum charges.