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Faculty of Science

Physics Department

Thesis title: Study of Linear and Nonlinear Dust

Acoustic Waves in Saturn F-Rings

Author’s name: Mohamed Awad Youssef Elattafi

Under Supervision of

No. Name Profession Signature

1 Prof. Dr. S.K. El-Labany Prof. of Theoretical Physics,
Faculty of Science –Damietta University

2 Prof. Dr. M. M. Selim Prof. of Theoretical Physics,
Faculty of Science –Damietta University

3 Dr. N. A. El-Bedwehy Assoc. Prof. of Applied Mathematics,
Faculty of Science –Damietta University

4 Dr. H. G. Abdelwahed Assoc. Prof. of Theoretical Physics,

Faculty of Science –Mansoura University

Referees
No. Name Profession Signature

Prof. of Theoretical Physics,
1 Prof. Dr. S.K. El-Labany
Faculty of Science –Damietta University

2 Dr. N. A. El-Bedwehy Assoc. Prof. of Applied Mathematics,
Faculty of Science –Damietta University

3 Prof. Dr. W. F. El-Taibany Prof. of Theoretical Physics,
Faculty of Science –Damietta University

4 Prof. Dr. W. M. Moslem Prof. of Theoretical Physics,
Faculty of Science – Port Said University

Head of Physics Vice-Dean for Graduate Dean of Faculty of
Department Studies and Research Science

Prof. Dr. Prof. Dr. Prof. Dr.
Wael Farouk Hamed Nemat Mohammad Mahmoud Salem Ibrahim
El-Taibany. Hassan Mahmoud Ibrahim