About the Authors

A. Hemaid

Mechanical Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt

Tarik Tawfeek

Mechanical Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt

O. A. Gaheen

Mechanical Engineering Department, Faculty of Engineering, Benha University, Cairo, Egypt

Corresponding Author

Email: tariktewfic@yahoo.co.uk