Studies on the Crystallization Properties and Morphology Structure of the Cationic Dyeable Polypropylene Fibers

The crystallization properties and morphology structure of the cationic dyeable polypropylene fibers which were produced by the blending spinning method were studied by making use of X-ray and scanning electron microscopy (SEM). It comes to the conclusions that the larger the crystallite size in the fibers is , the better the dycable properties of the fibers are and there is a little compatibility between the dyeable agent and polypropylene resin. And the dye-uptake of the fibers may be up to 90% because the dyeable agent can uniformly be scattered in polypropylene.     

算子空间的自反性

证明了具有性质Ｃσ的σ－弱闭的算子空间是遗传自反的文（１）中的主要结果是其特殊情形。     

科技进步与广西“九五”经济发展

本文阐述了科技进步是现代经济增长首要动力和国际经济竞争、综合国力较量焦点的基本理论与史实，提出了依靠科技进步来推动广西社会经济登上新台阶的战略思想，分析了广西“九五”各产业发展的科技进步问题。