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Official Journal of the Japan Wood Research Society

Table 4 Ratios of density and Young’s modulus obtained by the vibration method with additional mass to those without the concentrated mass (1600-mm-long specimens)

From: Practical techniques for the vibration method with additional mass: effect of crossers’ position in longitudinal vibration

Versus compressed specimen without a concentrated mass

 2nd

0.96 (0.043)

 3rd

0.92 (0.050)

Versus non-compressed specimen without a concentrated mass

 2nd

0.96 (0.043)

 3rd

0.94 (0.050)

  1. Mean (Standard deviation) of four specimens