Institution: | 1.Packaging Materials Department, National Research Center, Doki, Cairo, 12311, Egypt ;2.Physics Department, Faculty of Science, Minia University, Minia, 61519, Egypt ;3.Physics Department, Al-Qunfudah University College, Umm Al-Qura University, Mecca, Kingdom of Saudi Arabia ;4.Chemistry Department, Faculty of Science, Monfia University, Monfia, Egypt ; |