The Journal aims to be a forum of the latest results in engineering research, promoting integrated, interdisciplinary approaches, focusing on sustainable energy and high-tech product development. The journal is open to research groups all over the world and mostly welcomes scientific papers from groups involving young researchers and Ph.D. students. The Journal welcomes contributions that meet the general criteria of relevance and scientific excellence. The Journal is indexed in EBSCO Publishing DataBase (http://www.ebscohost.com/titleLists/a9h-journals.xls) and is evaluated by CNCSIS in the category B+ of the scientific magazine.