In recent years,many regions including China have witnessed fast growth of dry ports.Unlike in the other regions of the ......

As the traditional aluminum reduction cell energy efficiency analysis method is not comprehensive,this paper considers t......

Forest ecology is the main body of terrestrial ecosystems.Forestry, which takes managing, protecting and utilizing fores......

针对激光伪装涂层效能评价的难题，通过理论分析激光制导武器的工作机理，建立了激光伪装效能评价模型，计算得出将导引头有效作用距离由......

Since the implementation of the Labor Contract Law (LCL) in 2010,a significant increase in the capital/labor ratio,known......

在碳排放权总量控制目标下,进行中国各省区碳减排责任的分摊,是实现中国二氧化碳减排的首要问题.文章首先基于非期望产出SBM模型对......