Taking eva as polymers , the conductivity of polymers filled with different grade of conductive carbon car - bon blacks was studied , and the dispersity of different grade and content of conductive carbon black and the effect of the conductive carbon black on the conductivity of polymer were discussed 摘要以eva为高分子聚合物，采用不同级别的导电炭黑，研究了导电炭黑填充高分子聚合物的导电性，讨论了不同级别和不同用量的导电炭黑在聚合物的分散性，以及对高分子聚合物导电性的影响。
A source routing framework is proposed to route traffic flows proactively over multiple paths , which tries to optimize routes for long - lived flows based on dispersity routing ; based on mathematical analysis , our approach disperses incoming traffic flows onto multiple paths according to path qualities . long - lived flows are detected and migrated to the shortest path if their qos could be guaranteed there . suggesting non - disjoint path set , four types of dispersion policies are analyzed , and flow classification policy which relates flow trigger with link state update period is investigated 提出一种以业务量内在特性为基础的前摄式多路路由算法：以对业务量的内在特性分析为基础，该方法在多路发送数据流的同时检测非最短路径上的长流，而后在保证服务质量的前提下将长流迁移到最短路径上传输；前摄式多路路由使用以路径质量评价为基础的业务流分布方法有效提高网络吞吐量，通过周期性的路径质量评价适应时变网络状况；模拟实验表明，该方法可以有效提高“尽力而为”方式下的网络服务质量和资源利用率；浙江大学博士学位论文3
The dispersity and stability of the graphite aqueous suspensions was investigated with centrifugation , the violet visible spectrophotometer , the laser particle size analyzer and scanning electron microscopy ( sem ) . the following aspects of the production technique were carefully studied : 1 . the effects of surfactants , poly ( vinyl alcohol ) ( pva ) , poly ( vinyl pyrrolidone ) ( pvp ) , sodium alginate ( sa - na ) and poly ( sodium acrylate ) ( pa - na ) on the suspension stability of graphite were investigated 本研究的主要内容有以下三个方面: 1 、研究了阴离子表面活性剂、非离子表面活性剂、聚乙烯醇( pva ) 、聚乙烯基吡咯烷酮( pvp ) 、海藻酸钠( sa - na ) 、聚丙烯酸钠( pa - na )对石墨在水中分散性和稳定性的影响; 2 、研究了分散方法、分散介质、 ph值及羧甲基纤维素钠( cmc )含量对石墨在水中分散性和稳定性的影响; 3 、研究了聚乙烯醇( pva ) 、聚乙烯基吡咯烷酮( pvp ) 、海藻酸钠( sa - na ) 、聚丙烯酸钠( pa - na )四种助分散剂与羧甲基纤维素钠( cmc )复配对石墨在水中分散性和稳定性的影响。
