Table 2.
Regression equations describing about relationship and value of coefficient correlations, R² between mechanical property parameters and temperature, particle size and extract condition

Parameter	Particle size	Extract condition	Regression equation	R2
Pressure	10	extract	Pe10 = -0.14T + 24.22	0.9964
	10	raw	Pn10 = -0.06T + 11.48	0.7819
	20	extract	Pe20 = -0.11T + 19.49	0.9965
	20	raw	Pn20 = -0.02T + 7.065	0.9975
	40	extract	Pe40 = -0.13T + 22.32	0.9972
	40	raw	Pn40 = -0.04T + 8.58	0.9649
Elongation	10	extract	Ee10 = 2.27sin(1.94T) + 2.65	0.9916
	10	raw	En10 = 2.17sin(1.94T) + 2.45	0.9984
	20	extract	Ee20 = 1.96sin(1.94T) + 2.36	0.9827
	20	raw	En20 = 3.71sin(1.99T) + 3.96	0.9912
	40	extract	Ee40 = 1.27sin(1.94T) + 1.64	0.9947
	40	raw	En40 = 0.99sin(1.94T) + 1.29	0.9981
Density	10	extract	De10 = 196.62ln(T) + 366.31	0.9999
	10	raw	Dn10 = 215.01ln(T) + 235.24	0.9984
	20	extract	De20 = 178.95ln(T) + 475.96	0.9830
	20	raw	Dn20 = 193.78ln(T) + 344.24	0.9889
	40	extract	De40 = 132.69ln(T) + 704.30	0.9977
	40	raw	Dn40 = 126.40ln(T) + 672.12	0.9726
Compression strength	10	extract	Ce10 = 0.07T + 1.26	0.9807
	10	raw	Cn10 = 0.03T - 0.75	0.9839
	20	extract	Ce20 = 0.06T + 3.05	0.9994
	20	raw	Cn20 = 0.03T - 0.36	0.9976
	40	extract	Ce40 = 0.09T + 4.67	0.9916
	40	raw	Cn40 = 0.05T - 0.05	0.9965