Determination of machinery and knife strains in the planing of wood-based panels

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Results of the variance analysis

Factor	Degrees of freedom	Sum of square	Mean square	F number	Level of significance (p ≤ 0.05)
Corrected model	53	211.248	3.986	1.529E3	0.000*
Intercept	1	6237.419	6237.419	2.392E6	0.000*
Wood-based panels (A)	5	36.266	7.253	2.782E3	0.000*
Drive forward speed (m/min) (B)	2	88.648	44.324	1.700E4	0.000*
Engine revolution speed (rev/min) (C)	2	69.043	34.522	1.324E4	0.000*
Interaction (AB)	10	6.692	0.669	256.658	0.000*
Interaction (BC)	4	4.647	1.162	445.624	0.000*
Interaction (AC)	10	3.859	0.386	148.017	0.000*
Interaction (ABC)	20	2.092	0.105	40.123	0.000*
Fault	216	0.563	0.003
Total	270	6449.230
Corrected total	269	211.811

* Significant at 95 % confidence level
A wood-based panels, B drive forward speed (m/min), C engine revolution speed (rev/min)