1. Associate Professor, United Arab Emirates Univ., P.O. Box 15551, Al Ain, United Arab Emirates; presently, on leave, Housing and Building National Research Center, Egypt (corresponding author).
2. M.Sc. Graduate, United Arab Emirates Univ., P.O. Box 15551, Al Ain, United Arab Emirates.
3. Professor, United Arab Emirates Univ., P.O. Box 15551, Al Ain, United Arab Emirates.
4. Professor, Ain Shams Univ., P.O. Box 11517, Cairo, Egypt.