1. Department of Mechanical and Industrial Engineering, University of Iowa, Iowa City, IA 52242
2. Department of Mechanical and Industrial Engineering, University of Iowa, Iowa City, IA 52242 e-mail: hongtao-ding@uiowa.edu
3. Institute for Sustainable Manufacturing (ISM), University of Kentucky, Lexington, KY 40506
4. GE Global Research Niskayuna, NY 12309