N.Theodoridis N.Stratigeas Frank Khoie Group Munther badri Hamoudi Hussein Al-Arnoos Roger Maalouf Anwar Ali Anwar Ali 2 E.Dalamagas M.Antoniou E.Dairetzis Saudi Council of Engineers Council of Saudi Chambers of Commerce and Industry D.Michas D.Michas 2 Zezour Ali& Belabdoulah Farid Zezour Ali& Belabdoulah Farid 2 D.Dadakaridis A.Naniopoulos & D.Kalkinis Ahmad Jassim Al-Jalo B.Pilabakidis B.Hsaias D.Konstantinidis Y.Alavanos K.Alexopoulos M.Siounas-President of the Symposium Organizing Committee