The paper introduces the calculating method of filtering ration of vibration multi-layer screen by calculating injection area with injection mold based on software. Pro/E, which provides powerful support for the desig...The paper introduces the calculating method of filtering ration of vibration multi-layer screen by calculating injection area with injection mold based on software. Pro/E, which provides powerful support for the design and selectionofmulti-layerscreen.[Descriptors] Multi-Layerscreen Filtering ration Injection展开更多
文摘毛细管电泳和微芯片电泳是用于核酸分子分离的强有力工具,其筛分介质的选择尤为重要,是目前研究的热点之一。本文是按照均聚物和共聚物的分类,综述了线性聚丙烯酰胺、羟丙基甲基纤维素、羟乙基纤维素、聚乙烯吡咯烷酮、聚环氧乙烷、聚 N,N-二甲基聚丙烯酰胺、丙烯酰胺与聚 N,N-二甲基聚丙烯酰胺的共聚物等各种筛分体系的性质,包括其优点以及缺点,并对各自在 DNA 等生物大分子分离方面的应用进展进行了评述。简要介绍了筛分机理以及添加剂的加入对提高聚合物的分离能力和稳定性的影响。
文摘The paper introduces the calculating method of filtering ration of vibration multi-layer screen by calculating injection area with injection mold based on software. Pro/E, which provides powerful support for the design and selectionofmulti-layerscreen.[Descriptors] Multi-Layerscreen Filtering ration Injection