Investigation of Anisotropic Behavior and Statistical Evolution of Acoustic Emission Energy during the Deformation of Layered Sandstone

Table 3

Exponents of selected samples and their difference values.

Specimen	Effective power-law exponent		Optimal exponent
	Category	Value	Category	Value
A-1		3.90		3.90
		3.10		1.40
		0.80		2.50
B-1		5.10		2.40
		3.10		1.90
		2.00		0.50
C-1		7.60		2.20
		6.60		1.45
		1.00		0.75