datepublished: 2015istemp: 1author: Papaioannou, Angelos_or_Karkalousos, Petros_or_Spyropoulos, Vasileios_or_����������������������, ������������������__eltype: 1subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGYlang: el