Official Journal of the Japan Wood Research Society
Table 3 The apparent activation energy (ΔEα and ΔEβ) at 0.5–10 Hz with coefficient of determination (R2α and R2β) for specimens with different moisture content (MC) in all orthotropic directions
MC (%) | ΔEα (kJ/mol) | R 2 α | ΔEβ (kJ/mol) | R 2 β |
|---|---|---|---|---|
0.6 | ||||
L | – | – | 60.0 | 0.95 |
R | 244.3 | 0.91 | 57.2 | 0.98 |
T | 260.8 | 0.99 | 56.5 | 0.99 |
3.5 | ||||
L | – | – | 68.3 | 0.97 |
R | 242.7 | 0.96 | 67.1 | 0.97 |
T | 250.8 | 0.90 | 66.7 | 0.97 |
6.0 | ||||
L | – | – | 61.7 | 0.92 |
R | 204.1 | 0.99 | 59.5 | 0.99 |
T | 203.3 | 0.95 | 58.1 | 0.99 |
9.3 | ||||
L | – | – | 59.1 | 0.95 |
R | 199.9 | 0.99 | 57.3 | 0.95 |
T | 196.5 | 0.96 | 56.0 | 0.99 |
14.1 | ||||
L | – | – | 57.6 | 0.99 |
R | 197.0 | 0.99 | 52.0 | 0.91 |
T | 186.7 | 0.95 | 46.3 | 0.89 |
22.0 | ||||
L | – | – | 54.1 | 0.88 |
R | 145.4 | 0.97 | 48.4 | 0.95 |
T | 154.9 | 0.99 | 45.6 | 0.98 |