For example,gas loss amount calculated is lower than actual value and its error increases with sampling depth.

Analysis on the gas pressure measurement result revision on the basis of gas loss quantity before bore being sealed;

Research on prediction of gas contents base on RBF nerves network;

New technology of outburst danger prediction by gas content;

Discussion on incidence of underground roadway to gas content of coal seam;

Grey forecasting method for the gas flow prediction from boreholes;

Therefore the study on the change and trend of gas flow has significant practical value.

Calculation method of coal and gas outburst intensity and gas content;

Research on unascertained clusters on the gas emission of the working face;

Research on the prediction of gas emission in working face based on neural network;

Stepwise regression method for predicting gas emission from coal faces