非晶碳氢膜晶化学分形体密度簇模拟

在非晶碳氢膜非平均凝聚分形计算机模拟的系列工作基础上，模拟了密度族，这有益于对非晶碳氢膜晶化机制的进一步和开发利用。     

化纤复丝强度与纤维根数的关系

以单纤维强度服从Weibull分布、纤维束强度服从正态分布条件下纤维束强度与纤维根数间的关系为理论基础，测定分析了实际PET，PA6DTY复丝的平均强度与纤维根数间的关系，得出：复丝内纤维根数增加，复丝的平均强度下降；但当纤维根数增加到一定程度时，由于纤维间的相互作用增大，复丝强度又有所提高．除了强度分布因素外，实际复丝的强度与纤维根数的关系还受到复丝纱线结构、复丝内纤维间相互作用等因素的影响．     

ATP合成酶及其功能机制综述

在细胞能量转变过程中，F1F0-型ATP合成酶是一个关键酶。在ATP合成过程中，这个大的蛋白复合体利用质子梯度和相关的膜电势来合成ATP。这个酶结构的不同作用形式正在逐步阐明。一致的看法是这个酶由两个旋转发动机构成，一个在F1上，它将催化过程与内部的转子运动联系在一起，另一个在F0上，它将质子迁移与F0转子的运动联系在一起。虽然两个马达可以独立工作，但是它们必须结合在一起才能转换能量。从结构、基因和生化物理方面的研究中得出的关于这个旋转马达的功能的证据，在这里将作一个回顾，一些不确定的，关于酶机制尚留迷团的内容也将讨论如下。     

转基因技术与现代棉纺织新原料

结合现代生物工程中的转基因技术原理，介绍具有特殊性状和品质的转基因抗虫棉、彩色棉等典型棉纺织新原料及其资源开发状况。     

添加剂对PSF/SPSF合金膜结构和性能的影响

介绍了在PSF SPSF合金体系中加入大分子添加剂PVP、PEG6 0 0 0和小分子添加剂H2 O对合金膜结构和渗透、分离及成膜性能的影响     

Pilot Study on Drinking Water Advanced Treatment by GAC-MF System

The pilot pedomance of the combined GAC-MF membrane process for drinking water advanced treatment was described. In the process of GAC adsorption, under the conditions of 20min HRT and 6 m/h filtration rate, the removal efficiencies of UV254 and trichloromethane could reach 40% and 50% respectively and the UV254 and trichloromethane in system effluent was less than 0.015cm^-1 and 5 μg/L respectively. Inthe post MF membrane process, MF membrane effectively retained the particles and bacteria in raw water. The effluentturbidity was less than 0.2 NTU and no bacteria were detectedat all in permeate. A computer-controlled system was employedto control this system. The mcmlrane operating parameters of backwash interval, dtration and flux were studied. The backwash interval of 10-min, 20-min and 60-min wasresearched respectively, and the variation of trans-membrane pressure was also analyzed. Comequently short backwash interval was recommended under the same water consume.     

污水处理中膜污染控制的研究

膜的污染主要由沉淀、吸附、生物污染造成。笔者对这三种污染形成的原因进行了分析，并且提出了相应的控制方法。     

改性聚苯醚层压式高频覆铜板的研制

为了实现高频信号传输高速化,进行了低介电常数层压式高频覆铜板基材的研制.通过选择低介电常数的树脂材料和低ε的纤维作为增强材料,优化了基材的配方和成型工艺,解决了高性能低介电高频高速层压式覆铜板制备的技术关键,采用这一工艺研制的改性聚苯醚层压式高频覆铜板介电性能较理想.     

Representation of 3D Woven Structures by Parametric Method

A parametric method is developed to quantitatively represent the microstructure of 3D woven structures. Different binding patterns, such as angle interlock and orthogonal interlock with through-thickness or layer-to-layer bindings, are classified. A unit cell of 3D woven structure is defined with four constituent yarn systems represented by nine structural parameters. A mapping relationship between the 3D woven structure and corresponding representative parameters is thus established. The study indicates that four out of the nine parameters are necessary to represent a 3D woven structure with an angle interlock binding, and that five parameters are required to describe a 3D woven structure with an orthogonal interlock binding. Once the structural parameters are determined, the pattern of 3D woven structures can be unambiguously identified, and vice versa. In addition to the purpose of structure presentation, the method can be further used as a means for designing 3D woven structure to meet the performance requirements of 3D woven composites.