Since the classical post-classification comparison(PCC) technique was affected by a significant cumulative error and high classification precision was needed for single image,a change-detection method based on joint-classification of bi-temporal SAR images was presented according to the correlation of the unchanged information in different temporal images.

According to ensure water supplies for resident,agriculture,industrial projects,as well as keeping ecology of downstream,the writer was set up a combined dispatching model of six reservoirs on the Baifuhe River Basin in order to have the biggest quantity of supply water,and carried out calculation under optimum condition using the model.

Based on the establishment of combined dispatching model of Three Gorges Project and Qingjiang Power Station,this paper explores the compensation benefits of electric power,electric output,navigation and flood control from the combined optimum dispatching of the Three Gorges Project and Qingjiang Hydropower Station.

The Study of the Joint Operation Alternatives and Mathematical Modeling Flow and Sediment for Yongding River Flood-Retention Reservoir;

The paper analyses the maximum regulation level of two reservoirs to the runoff,defines the feasible joint operation scheme,optimizes the operation scheme.

Research on integrated scheduling algorithm for 3-tier supply chain;

To solve this problem, a scheduling set based integrated scheduling (SSBIS) algorithm is proposed.