1. Department of Electrical and Computer Engineering, University of Wisconsin–Madison, Madison, WI, USA
2. Department of Civil and Environmental Engineering, University of Wisconsin–Madison, Madison, WI, USA
3. Department of Civil and Environmental Engineering and the Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI, USA
4. Department of Mechanical Engineering and the Department of Electrical and Computer Engineering, University of Wisconsin–Madison, Madison, WI, USA