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Table 24. Regional comparison: results for dried product quality problems. Dried Product Quality Problem Achieving Target MC Spread of final MC MC gradients End checking Casehardening Collapse Resin flow Discolouration (Fungi) Deformations Surface checking Discolouration (Stick, marks) Intern, checking (honeycomb) Checked knots Discolouration (Temper.) Canada Europe 3.1 3.3 3.1 3.6 2.6 3.2 2.6 3.2 2.3 3.1 1.8 2.6 1.7 2.5 1.9 2.8 2.9 3.8 2.5 3.4 1.7 2.6 2.0 3.0 1.9 2.9 1.7 2.7 Difference (Canada - Europe) -0.2 -0.5 -0.6 -0.6 -0.8 -0.8 -0.8 -0.9 -0.9 -0.9 -0.9 -1.0 -1.0 -1.0 t Statistic Significant 4.2.5. Comparison of Drying Process Issues In comparing drying process issues, a 1 to 5 interval scale was used for the compared mean values, where: 1. signified that the issue was unimportant 2. signified that the issue was of little importance 3. signified that the issue was moderately important 4. signified that the issue was important 5. signified that the issue was very important Table 25 presents mean values for drying process issues, the difference between them and whether a significantdifference(alpha=0.05)wasdetected.Onlyuseofoptimizedschedulesandelectricalenergy consumption didnothaveastatisticallysignificantdifference. Difference - 1.623 no -3.816 yes -5.162 yes -5.346 yes -7.198 yes - 7.400 yes - 10.458 yes -7.954 yes - 8.022 yes - 8.232 yes - 9.899 yes - 10.134 yes - 10.552 yes - 10.839 yes 75PDF Image | KILN DRYING PROBLEMS AND ISSUES IN CANADA
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