1. Assistant Dean for Academic Affairs, Al-Musanna College of Technology, P.O. Box 191, P.C. 314, Al-Muluddah, Oman.
2. Senior Lecturer, School of Architecture, Planning and Landscape, Univ. of Newcastle upon Tyne, 3-4 Claremont Terrace, Newcastle upon Tyne NE2 4AE, U.K.
3. Professor, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough, Leicestershire, LE11 3TU, U.K.