1. Department of Civil and Environmental Engineering, University of Alaska Fairbanks, Fairbanks, AK, USA
2. Department of Heat Treatment and Physics of Metals, Ural Federal University, Yekaterinburg, Russia
3. Department of Entomology, Iowa State University of Science and Technology, Ames, IA, USA
4. Department of Civil and Environmental Engineering, University of Iowa, Iowa City, IA, USA