Coal mine goaf detection remains confronted with the lack of fast, effective and low-cost
exploration means, especially for the accurate prediction of mining threats primarily caused …

The acoustic response of gas and/or water saturated coal rock is fundamental for
establishing the correspondence between the physical properties of the coal reservoir and …

As an environmentally friendly and high-calorific natural gas, coalbed methane (CBM) has
become one of the world's most crucial unconventional energy sources. Undoubtedly, it is …