Doctoral Thesis of the Researcher\ Engy Munir Gerges Hanna will be discussed at the hall of Conferences, the 3^rd floor. The Discussion committee includes the following; Prof.Dr. Abd el Qader el Bahrawy, Prof.Dr. Dawlat Abd el Reheem, Prof.Dr. Khaled Abd el Aal and Prof.Dr.Adel Khidr Ibrahim.