Abstract In order to study the spatiotemporal variations characteristic of water quality and potential pollution sources Qujiang River, data twelve parameters at three monitoring sections (Tuanbaoling, Baita, Sailong) from 2015 2019 were analyzed by using comprehensive index (CPI) multivariate statistical techniques (MST). The River basically meet class 3 value environmental standards for surfa...

According to the research progress of software networks in these years, the software structural networks show the same characteristics with complex networks and the software topological structure has an effect on the quality characteristics of software systems. The research work begins with the statistics analysis of three characteristic values, which can reflect the efficiency, complexity and ...