Weighed Nonlinear Hybrid Neural Networks in Underground Rescue Mission

Table 1

Common rocks found in typical mines in relation to hardness or softness.

Nonlinear mapping	Mica	Coal	Granite	Feldspar	Quartz	Mineral
Softness	0.70	0.80	0.83	0.86	0.875	0.90
Hardness	2	3	5	6	7	9
Distance	750 m	470 m	390 m	315 m	278	78 m