KH Journal of Science and Engineering (UKHJSE) is a semi-annual journal published by the University of Kurdistan Hewlêr, Erbil, Kurdistan Region, Iraq. UKHJSE has an e-ISSS: 2520-7792; and a member of the Crossref, DOI: 10.25079/issn.2520-7792. UKHJSE publishes original researches in all areas of Science and Engineering. UKHJSE is a Peer-Reviewed Open Access journal with Creative Commons Attribution Non-Commercial No Derivatives License 4.0 (CC BY-NC-ND 4.0). UKHJSE provides immediate, worldwide, barrier-free access to the full text of research articles without requiring a subscription to the journal, and has no article processing charge (APC). UKHJSE applies the highest standards to everything it does and adopts APA citation/referencing style. UKHJSE Section Policy includes three types of publications: Articles, Review Articles and Letters.