On the basis of convexity and monotonicity preserving sectional power function,automatic sectioning system was adopted to solve the difficulty of defining the segmented points.Automatic sectioning system requires more parameters to be calculated and more complicated calculation process,so Artificial Bee Colony Algorithm is applied with good robustness,fast convergence and superior global optimization performance.As demonstrated by the results of study,ABC Algorithm renders better curve fit and more effective water level-flow relationship curve rating.

In order to solve the ice accretion problem on collector lines for a mountain wind farm in northern Guangxi in winter,a suitable ice accretion thickness is proposed based on the analysis and field investigation on regional climate condition of icing line,as well as the study on design and operating conditions of transmission lines nearby.

the surface of SGF with two different epoxy equivalent of bisphenol-A EP was treated,and then blended with PET.The effects of contents of epoxy and epoxy equivalent on the mechanical properties,crystallization behavior,and microstructure of the composites were studied by mechanical property testing,DSC,and SEM.It was found that with the content of 0.5 phr EP903 and EP619D treated the surface of SGF,the tensile strength of blends increased from 77.9 MPa to 87.06 MPa and 86.42 MPa respectively,and the modification effect of EP903 was better than the EP619D.The surface treatment of SGF lowered the crystallinity of PET and the fracture surface of SGF was rough,adhesion of the matrix was increased,also enhanced the interface adhesion between SGF and PET

During the polymer material synthesizing process,polymer synthetic technologies can make polymer materials be composed of various lengths of molecular chains,which leads to the molecular weight distribution is polydisperse.However,this polydispersity will result in different influence on the phase behavior of different polymer blending systems.In this paper,the importance of researches on the effect of polydispersity on the phase behavior of polymer systems is described.The effect of polydispersity on the phase behavior of polymer solution,block copolymer,polymer-polymer blends,colloid-polymer blends are reviewed and the directions of future research in this field are proposed.

The covered ice distribution of 90 observatories in Guangxi is calculated based on covered ice model by using their 40 years climate data and geographic information data.The spatial analysis model of covered ice are established by GIS technology,regression analysis of mathematical statistics and small-grid calculation method,and the spatial distribution of covered ice with 1 km×1 km resolution ratio is calculated.The spatial distribution characteristics of covered ice area of transmission line in Guangxi are analyzed by grade index and GIS which has the capability of spatial analysis,so that it can provide decision-making reference for the security operation of Guangxi Power Grid.

通过对乐滩水电站上游的天生桥一级、天生桥二级、岩滩等水电站运行与调度方式的研究分析,并采用单、双累积曲线及入、出库洪水对比,由上游天生桥一级水电站至下游百龙滩水电站分时段依次评价各级电站建成前后,其下游特别是乐滩水电站洪水系列的一致性情况。并预评龙滩水电站建成后对下游洪水系列一致性的影响。