1. Assistant Lecturer, Al-Nahrain Univ., Baghdad 00964, Iraq; Ph.D. Student, Engineering Research Centre, School of Computing, Science and Engineering, Univ. of Salford, Manchester M5 4WT, U.K.
2. Lecturer, Engineering Research Centre, School of Computing, Science and Engineering, Univ. of Salford, Manchester M5 4WT, U.K. (corresponding author).
3. Assistant Professor, Dept. of Civil Engineering, Univ. of Baghdad, Baghdad 00964, Iraq.