subjectTerm: III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Nikolopoulos, Stavros_or_Cheliotis, Dimitrios_or_Grontas, Panagiotis_or_Markou, Evripidis_or_Michalopoulos, Andreas__en