In order to study the dynamic changes in gas concentration, to reduce gas hazards, and to protect and improve mining safety, a new method is proposed to predict gas concentration. The method is based on the opposite degree algorithm. Priori and posteriori values, opposite degree computation,...

Pollutants emitted by pollution generation sources do not only deteriorate the water quality, but the emissions of greenhouse gas also contribute to the green house effect. Material balance of biomass wastes shows there is a trade-off between water pollution and global warming. Therefore, in...