1. Oregon State University, Wood Science and Engineering, 119 Richardson Hall, Corvallis, Oregon 97331, United States
2. Oregon State University, School of Electrical Engineering
and Computer Science, 1148 Kelley Engineering Center, Corvallis, Oregon 97331, United States
3. Oregon State University, Electron Microscopy Facility, 145 Linus Pauling Science Center, Corvallis, Oregon 97331, United States