Coal is the dominating energy source in China. Although the supply and demand of coal has kept equilibrium along with China's continuous and steady economic development in recent years, the sustainable production ability has been seriously decreasing. In this paper, a system dynamics model is...

This article discusses a rescaled range analysis model, titled AGA-R/S, that is based on an accelerated genetic algorithm. The parameter a, Hurst index of rescaled range analysis, and the recurrent time of disaster in the next time-period, were directly computed using an accelerated genetic...