1. Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, USA
2. Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA
3. Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA
4. National Institute of Research and Development for Technical Physics, Iasi, Romania
5. Department of Physics and Astronomy, The University of Alabama, Tuscaloosa, AL, USA
6. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Falcon Heights, MN, USA