collection: 2subjectTerm: III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCEtype: 7author: Cheliotis, Dimitrios_or_Bratsos, Athanasios_or_Kranakis, Evangelos_or_Κοντογεώργης, Αριστείδης__ellang: el