author: Grontas, Panagiotis_or_Bratsos, Athanasios_or_Pagourtzis, Aristeidis_or_Cheliotis, Dimitrios_or_Pagourtzis, Aristeidis__ensubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_I. MATHEMATICS AND COMPUTER SCIENCE