Acknowledgements
I want to thank all who helped me by their knowledge and experience. I will always appreciate their efforts. I’m extremely grateful to Prof. Ibrahim Eldokany for his valuable suggestions and support. I’m also grateful to Prof. El-Sayed El-Rabaie for his valuable discussions and support. I would like to thanks Prof. Fathi Abd El-samie for his supervision and continuous support and helpful discussions throughout this work and the time and effort he spent for my work.
My sincere appreciation and gratitude are devoted to my parents, my sister, and my brothers for their help and patience during the preparation of this work.
