The Sulaimani Journal for Engineering Sciences SJES is a peer reviewed journal published by University of Sulaimani/ faculty of Engineering. The aim of the journal is to provide the readers with current knowledge and researches in the field of Engineering. The area of interest is opinions, reviews, researches, Engineering practices, case report and other relevant Engineering. The journal accepts manuscripts via the journal office directly or the e-mail address of the journal (firstname.lastname@example.org). The scientific work should solely belong to the author or authors and not be published previously in any other journal or currently sent to any other publishers. All manuscripts will be exposed to a referee process.