In order to investigate the effect of low carbon development on energy supply and environment impact, this study, taking Shanghai as a case study, forecasts energy demand, local air pollutant and CO2 emissions in BAU and low carbon development scenarios by using LEAP model.

The DK-Leap algorithm for simulating chemically reacting system with delays;

Presented here is the delay K-Leap(DK-Leap) method,an accelerated method for simulating chemically reacting systems with delays,in which the total number of reactions occurring during a leap to be a number K calculated from the leap condition,and timeτis randomly determined according to its obtained prob.

Presented here is an L-leap method for accelerating stochastic simulation of well stirred chemically reacting systems,in which the number of reactions occurring of a reaction channel with the largest propensity function is calculated from the leap condition and the numbers of reactions occurring of the other reaction channels are generated by using binomial random variables during a leap.

Improvement of Leap-frog scheme;