1. Faculty of Engineering, Aligarh Univ., Aligarh 202002, India (corresponding author).
2. Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea.
3. Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, Omaha, NE 68182.