Influence factors on the molecular weight of acrylic resin during solution polymerization were studied. 研究了溶液聚合过程影响丙烯酸酯树脂分子量的因素。
The effect of the sort and content of solvent on kinetics of polymerization, the stabilities and viscosity of copolymer solution, and intrinsic viscosity, molecular weight, glass-transition temperature of copolymer in solution polymerization of MMA-BA-AA has been studied. 研究了在溶液聚合中溶剂的种类、用量对MMA-BA-AA体系的溶液聚合动力学,聚合物溶液的稳定性、粘度,聚合物的特性粘数、分子量及分子量分布、玻璃化转变温度等性能的影响。
This paper discusses how to form an index system on disaster defense ability of information system with AHP thinking, summarizes the general steps on AHP calculation on the weight of indexes, and gives out a solution when the judgment matrix is not consistent. 本文讨论了如何运用AHP法构建信息系统灾难防御能力的指标体系,总结了AHP法计算指标权重的一般步骤,给出了一种当判断矩阵不一致时的解决方法。
The Relationship on Concentration, Specific Weight and Temperature of Gelatin Solution 明胶溶液浓度、比重与温度的关系
Fulvic acid extracted from weathered coal ( Gong Xian) was fractionated on the base of molecular weight differences by means of fractional solution in ethanol-ethyl acetate solvent system. 从黄腐酸含量较高的巩县风化煤中萃取和提纯得到灰分很低的纯黄腐酸。在乙醇-乙酸乙酯溶剂体系中进行分级溶解取得了不同分子量的黄腐酸级分。
Significant promotion effect of increasing phosphorus supply on the nodulation, total dry weight of nodules and nitrogenase activity were obtained in low-P solution. 在低磷的介质中,增磷对田菁根瘤的形成,发育和固氮酶活性有明显的促进作用。
The experiment results in three UCI public datasets demonstrated the good performance of clustering based on feature weight, and also demonstrated the feasibility of the solution provided. 在3个UCI公共数据上很好的验证了基于特征加权的聚类算法的良好性能,同时实验证明了针对各种结果分析的解决方案的可行性。