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Official Journal of the Japan Wood Research Society

Table 4 Appearance quality of MW-pretreated and control samples after drying

From: Effects of microwave pretreatment on drying of 50 mm-thickness Chinese fir lumber

Sample

Bow (%)

Crook (%)

Cup (%)

Twist (%)

Internal checks

Pretreated quarter-sawn

Control quarter-sawn

0.43 ± 0.04

0.48 ± 0.04

0.48 ± 0.04

0.50 ± 0.07

0.10 ± 0.17

0.23 ± 0.23

0.48 ± 0.04

0.18 ± 0.20

No

No

Sig.

*

 

Pretreated flat-sawn

Control flat-sawn

0.45 ± 0.08

0.43 ± 0.05

0.45 ± 0.05

0.47 ± 0.05

0.58 ± 0.21

0.48 ± 0.12

1.38 ± 0.81

1.00 ± 0.55

No

No

Sig.

 
  1. * Means significant at 0.05 level, — Means not significant at 0.05 level