Mourad, A-H.

Mechanical Engineering Department, Faculty of Engineering, United Arab Emirates Univ., Al-Ain, AE On leave from Mechanical Design Department, Faculty of Engineering (Mataria), Helwan University, Cairo, EG

Altarawneha, J.

Mechanical Engineering Department, Faculty of Engineering, United Arab Emirates Univ., Al-Ain, AE

Domiaty, A.

Mechanical Engineering Department, Faculty of Engineering, Suez Canal Univ., Ismailia, EG

Chao, Y.

College of Material Science and Engineering Tianjin Univ., Tianjin, CN

Haggag, F.

Advanced Technology Corporation, Oak Ridge, TN, US