1. Department of Civil Engineering, Faculty of Engineering, Suez Canal University, PO Box 41522, Ismailia, Egypt
2. Petroleum Applications Department, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo 11727, Egypt
3. Faculty of Science, Mansoura University, Mansoura, Egypt
4. Botany Dept., Faculty of Science, Suez Canal University, Box 41522, Ismailia, Egypt