1. Graduate Research Assistant, Wood Science, Univ. of British Columbia (UBC), Vancouver, Canada V6T 1Z4.
2. Graduate Research Assistant, Civil Engineering, Univ. of British Columbia (UBC), Vancouver, Canada V6T 1Z4.
3. Assistant Professor, Wood Science and Civil Engineering, Univ. of British Columbia (UBC), Vancouver, Canada V6T 1Z4 (corresponding author).