赣粤运河水资源条件分析*

江西省地处长江中下游南岸，在长江流域经济发展格局中具有承东启西、连南接北的交通区位。赣粤运河通过连接赣江和北江，使得长江水系和珠江水系连通，形成新的南北水运大通道。本文通过分析水资源现状，研判赣粤运河项目开发中存在的水资源重大制约因素，提出了赣粤运河越岭段开发的水资源综合利用方案，可为科学决策提供技术支撑。     

赣粤运河水资源条件分析*

江西省地处长江中下游南岸，在长江流域经济发展格局中具有承东启西、连南接北的交通区位。赣粤运河通过连接赣江和北江，使得长江水系和珠江水系连通，形成新的南北水运大通道。本文通过分析水资源现状，研判赣粤运河项目开发中存在的水资源重大制约因素，提出了赣粤运河越岭段开发的水资源综合利用方案，可为科学决策提供技术支撑。     

Optimum Consecutive Preventive Maintenance Scheduling Model Considering Reliability

As an effective means for improving system condition and reducing failures, a reasonable preventive maintenance scheduling guarantees the stability and safety of the system. This paper studies a consecutive maintenance scheduling problem for single-component systems with imperfect maintenance, and an optimum model with minimum reliability constraint for minimal cost rate is developed based on the renewal theory. The agebased and reliability-based maintenance strategies are modeled and compared according to a numerical example based on the degradation data of the actual system, which also verifies the optimality of the reliability-based strategy. At last, the influence of some key parameters is discussed by sensitive analysis.