1. Department of Mechanical Engineering, The City College of New York, New York, New York 10031, USA
2. Advanced Science and Research Center, The City University of New York, New York, New York 10031, USA
3. Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
4. Department of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA