空气洁净技术应用研究

本论述了空气洁净技术在工业领域和生物净化领域应用，指出了洁净技术发展国内外存在的差距，提出了应用数理统计分析评价生物洁净技术在无菌罐装中应用效果的数理评价方法。     

Ladyzhenskaya模型的低阶三角形有限元方法

对定常Ladyzhenskaya模型提出了一种稳定化有限元法.给出了用低阶三角形元逼近时,有限元解的存在性、唯一性及收敛性的数字分析。     

三峡卸荷岩体宏观力学参数三维数值模拟

通过对岩体“试件”的三维数值模拟，研究了三峡工程永久船闸高边坡岩体在卸荷应力状态下的应力应变关系，并与试验结果进行了比较，获得了满意的结果，最后确定了岩体在卸荷应力状态下的宏观力学参数。     

互穿聚合物网络型油田堵水剂

介绍以Ｗ／Ｏ型ＰＡＭ胶乳和改性氨基树脂为主要成分、互穿聚合物网络型油田选择性堵水剂的制备、性能与应用．该堵水剂堵水效率高，耐高温、有效期长，施工简单，可堵可解，是国内一种新型的选择性堵水剂     

“虚工件”中刀具排列优化算法

针对柔性制造系统中一块托板上装夹几个相同或不同工件组成的一个实体——“虚工件”的工艺安排中的刀具排序问题,提出了一个新的算法.利用这一算法,可以很方便地从“虚工件”工艺安排的相同刀具中找出一个共用刀具数最多的序列,从而实现刀具排序最优化的目的.     

CAPP/CAM中平面铣削路径的确定

平面铣削路径的自动生成是CAPP/CAM集成设计的瓶颈问题.立足于通用性和实用性,提出了把平面划分成网格,根据网格特征值判断刀具的进给形式并计算出相应的刀具运动的点位数据,以确定平面铣削路径的新方法.文中对这一方法的实现过程也作了详细的讨论.     

Initiation and re-initiation of DNA unwinding by the Escherichia coli Rep helicase

Helicases are motor proteins that couple conformational changes induced by ATP binding and hydrolysis with unwinding of duplex nucleic acid, and are involved in several human diseases. Some function as hexameric rings, but the functional form of non-hexameric helicases has been debated. Here we use a combination of a surface immobilization scheme and single-molecule fluorescence assays--which do not interfere with biological activity--to probe DNA unwinding by the Escherichia coli Rep helicase. Our studies indicate that a Rep monomer uses ATP hydrolysis to move toward the junction between single-stranded and double-stranded DNA but then displays conformational fluctuations that do not lead to DNA unwinding. DNA unwinding initiates only if a functional helicase is formed via additional protein binding. Partial dissociation of the functional complex during unwinding results in interruptions ('stalls') that lead either to duplex rewinding upon complete dissociation of the complex, or to re-initiation of unwinding upon re-formation of the functional helicase. These results suggest that the low unwinding processivity observed in vitro for Rep is due to the relative instability of the functional complex. We expect that these techniques will be useful for dynamic studies of other helicases and protein-DNA interactions.     

流变体在圆锥流道中的流动与流道优化

粉末注射成型喂料流变体要通过流道注射到型腔中，型腔一般有圆柱型与薄板型等，对于多绕口注射成型采用圆锥形流道较为理想，本文作出喂料流变体在圆锥形流道中的流动的受力分析，并对圆锥流道的长度及半锥角进行了优化。     

三维光弹性定律的两种分析方法

本文分别以琼斯矩阵法和邦加球上圆锥滚动理论分析并证明了三维光弹性定律,揭示了入射线偏振光在三维光弹模型内的偏振变换规律以及外部等效特性。