1. Faculty of Engineering, Dept. of Civil Engineering, Erciyes Univ., 38039 Kayseri, Turkey; and Water Research Center, King Abdulaziz Univ., 21589 Jeddah, Saudi Arabia (corresponding author).
2. Faculty of Engineering, Dept. of Civil Engineering, Erciyes Univ., 38039 Kayseri, Turkey.
3. Faculty of Engineering, Dept. of Computer Engineering, Erciyes Univ., 38039 Kayseri, Turkey.