1. a Department of Mechanical Engineering , Virginia Polytechnic Institute and State University , Mail Code 0238, Blacksburg, VA, 24061, USA
2. b Department of Engineering Science and Mechanics , Virginia Polytechnic Institute and State University , Mail Code 0219, Blacksburg, VA, 24061, USA
3. d Virginia Tech – Wake Forest School of Biomedical Engineering and Sciences , Virginia Polytechnic Institute and State University , Mail Code 0298, Blacksburg, VA, 24061, USA
4. c Department of Industrial and Systems Engineering , Virginia Polytechnic Institute and State University , Mail Code 0118, Blacksburg, VA, 24061, USA