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Official Journal of the Japan Wood Research Society

Table 5 Descriptive statistics for loss of moisture, % in unfractionated willow, fir and ash chips after various microwave irradiation times

From: Effects of microwave irradiation on the moisture content of various wood chip fractions obtained from different tree species

Species Time, s Mean % Min. % Max. % Range % Variance SD % CV %
Willow 30 1.46 1.15 2.43 1.28 0.30 0.54 37.20
60 4.42 3.66 4.93 1.27 0.22 0.47 10.63
120 9.23 8.27 10.78 2.51 0.75 0.87 9.37
180 15.32 12.92 17.50 4.58 3.83 1.96 12.78
Fir 30 1.56 1.45 1.72 0.28 0.01 0.11 7.00
60 4.91 3.62 5.89 2.28 0.76 0.87 17.8
120 11.00 9.16 12.2 3.04 1.35 1.17 10.58
180 18.68 17.53 19.63 2.10 0.44 0.66 3.55
Ash 30 0.73 0.55 1.00 0.46 0.03 0.17 23.40
60 2.32 2.10 2.60 0.50 0.04 0.20 8.60
120 4.40 3.94 5.04 1.11 0.18 0.42 9.50
180 6.64 5.25 7.93 2.68 1.07 1.06 15.60
  1. SD standard deviation, CV coefficient of variation