UNEC JEAS is an open access journal publishing fully peer-reviewed original and review papers as well as brief reports on topics in all areas of engineering, applied and natural sciences. The journal provides a platform for researchers who wish to summarize their theoretical, experimental and practical research at academic level and share these works as widely as possible. The published papers provide an overview of the main developments on a particular topic, with an emphasis on recent developments, and sketch an outlook on future developments.