The fractional change in electrical resistivity of cement-based materials with vol 25% nickel powder goes up to 40% and 35% under single compressive loading and within elastic regime respectively,which indicates these materials possess favorable piezoresistivity.

Measurement of apparent resistivity value for coal slices of different seam structures;

1-D Simulation on model apparent resistivity curve of CSAMT method in certain mine;

Definition of whole zone apparent resistivity for transient electromagnetic method of current dipole source;