碱性成纤维细胞生长因子在鼓膜刺激疗法中的应用

目的：为观察碱性成纤维细胞生长因子（ｂＦＧＦ）在鼓膜刺激闻法中的作用。方法：对慢性单纯性中耳炎所致的残余鼓膜穿孔及外伤性鼓膜穿孔，行非手术鼓膜刺激疗法，修补鼓膜共３２耳作临床分析总结，ｂＦＧＦ治疗组１７耳（残余性中耳炎１２耳，外伤性５耳）；且１５耳（残余性中耳炎１０耳，外伤性５耳）。按常规鼓膜刺激疗法，鼓室内放入蘸有ｂＦＧＦ的明胶海绵进行治疗观察。结果：ｂＦＧＦ组成功率为１００％（１２耳），对照组     

乳状液膜分离中的乳液溶胀及影响因素

论述了液膜分离过程中乳液溶胀的方式及产生溶胀的原因,讨论了表面活性剂,载体及内相试剂对溶胀的影响并提出了控制溶胀的措施。     

考虑蒙皮效应的高层结构有限元分析

文章将蒙皮效应引入高层钢结构的计算分析中 ,对结构各组成部分进行有限元分析。在分析过程中将压型钢板等价为正交各向异性平板 ,并对其引入壳体概念。在推导单元刚度矩阵时 ,着重阐述了压型钢板等效剪切模量的形成。最后通过算例 ,将计算结果与参考结果相比较 ,充分验证了蒙皮效应在高层结构中可有效控制建筑物的侧移     

外旋流强化管式膜微滤的研究评述

在综述了国内外膜分离技术的发展基础上 ,分析了膜微滤的优缺点 ,并对提高膜通量、降低膜污染的外旋流强化管式膜微滤过程 ,给出了其研究的技术路线和方法     

离子交换膜扩散渗析分离碱钨的可行性研究

研究离子交换膜扩散渗析法从粗钨酸钠溶液中分离回收游离碱的可行性，考察了料液及回收液流速、料液中游离碱浓度、回收液寝碱浓度对扩散渗析过程的碱迁移速度、水迁移速率及钨迁移量的影响。结果表明扩散渗析法能够有效地从粗钨酸钠溶液中分离回收游离碱。     

含乳化油污水的超滤膜分离模型

采用外压管式聚丙烯腈（ＰＡＮ）超滤膜对含乳化油污水进行分离，由实验结果拟合出模型参数，建立了对含乳化油污水进行处理的数学模型。用模型进行通量预测，并结合实验结果对渗透通量的控制因素进行了分析。结果表明，当操作压力大于０．２ＭＰａ及料液中乳化油浓度≥３ｇ／Ｌ时，膜面已形成凝胶层；当压力较低或浓度不大时，渗透通量受浓差极化渗透压的控制。     

超滤技术代替乙醇沉淀粗右旋糖酐工艺研究

探讨了采用发酵液预处理和超滤技术的联合工艺代替乙醇沉淀粗酐工艺。新工艺生产的右酐,其理化指标均能达到药典要求,新工艺可节约原工艺乙醇用量的40％～50％,同时回收的副产品果糖可作为食用糖源。     

分散式污水处理综述

阐述了分散式污水处理的概念,介绍了分散污水处理系统的类型和技术,并对污水集中处理和分散处理进行了比较。     

Membrane resting potentials in cultured mouse neuroblastoma cells

Summary Membrane resting potentials (MRP) were measured systematically in cultured mouse N₂A neuroblastoma cells: 1) in the logarithmic growth phase; 2) in subconfluent cultures; 3) in confluent cultures; 4) after dBcAMP had induced morphological differentiation. Neurite extension was accompanied by a significant increase in MRP as compared to the appropriate controls. No significant differences in MRP were observed with regard to the different growth phases.     

Identification of hemolytic granules isolated from human myocardial cells

Summary Human myocardial cells from fresh autopsy material contained granules which possessed hemolytic activity against guinea pig and rabbit erythrocytes. The hemolytic granules, which had a density of 1.02 and a diameter of 200–300 nm, were recovered as a microsome fraction from subcellular homogenates of human myocardial cells by differential centrifugation in 300 mM sucrose containing 0.1 mM PMSF and 10 mM EDTA. The membrane lesions caused by the granules were ring-like structures with an internal diameter of about 10–17 nm, analogous to that caused by perforin- and complement-induced lysis. However, the requirement for divalent cation differed from that for perforin-induced lysis, since the microsome-mediated lysis occurred in the presence of EDTA.