电渣熔铸钢水液位检测新方法--测重法

挤拐是电渣熔铸曲轴一步整体成型的工艺特点，而钢水液住的检测是实现挤拐的基础，本文在大型电渣熔铸机中采用测重法来实现钢水液位的检测，同时也实现了挤拐时机的检测。     

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。     

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。     

Landfill leachate treatment by MBR： Performance and molecular weight distribution of organic contaminant

A membrane bioreactor (MBR) with an air-lift bioreactor and gravity flow is applied to treating landfill leachate. More than 99% of BOD5 (biochemical oxygen demand for five days) removal effi-ciency is achieved with less than 35 mg/L of BOD_5 in the effluent at less than 1.71 kg BOD5/m~3·d of BOD_5 loading rate. When DO (dissolved oxygen) is maintained at the range of 2.3―2.8 mg/L and the loading rate of NH_4~ -N (ammonium nitrogen) is kept at 0.16― 0.24 kg NH_4~ -N/m~3·d, the NH_4~ -N in the effluent is less than 15 mg/L. However, compared with high removal rates of BOD_5 and NH_4~ -N, the removal effi-ciency of soluble chemical oxygen demand (SCOD) varies between 70% and 96%. The investigation of molecular weight (MW) distribution has been carried out by the gel permeation chromatography (GPC) so as to understand the fate of organic matters in the MBR treating of landfill leachate. Results indicate that organic matters of the landfill leachate are composed of a high MW fraction (MW of the peak, MWp = 11480―13182 Da) and a low MW fraction (MWp = 158―275 Da). The high MW fraction is not biode-gradable, but can be decreased with microfiltration membrane. The most of the low MW fraction is bio-degradable, but the residue of the low MW fraction is able to permeate through the membrane, thus re-sulting in high SCOD in the effluent of the MBR.     

浅谈混凝土乳皮层的处理

混凝土浇筑时,由于其散热要求、立模限制、分段施工等原因必须中途停顿,这样在两层混凝土之间就产生了施工缝。施工缝的处理对保证结构的整体性、抗渗性和耐久性起着重要作用,必须引起高度重视。     

用L-B膜实现MIS结构的C-V特性研究

测定了多种具有金属／L－B膜绝缘层／半导体（Si）结构的纳米厚度有机功能膜的C－V特性．研究发现C－V特性受到L－B膜的分子组分和氧化膜厚度的影响．     

阜新发电厂水质净化用反渗透膜的清洗

反渗透技术已广泛应用于发电厂水质净化,运行中膜的污染已成为其运行安全的大问题。膜的污染也因各地水源水质不同,预处理工艺和效果不同而复杂化,膜的清洗成为应用中的一个难题。本文对阜新发电有限公司反渗透系统膜的污染进行了分析和二十几多次在线清洗试验研究,从清洗配方、工艺、监督和操作中探索出了一套合理的膜清洗技术。运行结果表明清洗效果非常好。     

纳米金属颗粒膜的二次谐波增强效应

纳米尺寸金属颗粒膜可以产生较大的表面二次谐波增强。本测量了用溅射法制备的纳米尺寸Ａｕ颗粒的反射二次谐波，其增强因子可达１０％２数量级。理论计算了局域场因子与波长的关系曲线，对于用Ｎｄ：ＹＡＧ激光器输出的１．０６μｍ波长的基频光，可以获得较强的倍频光的局域场增强，对金属颗粒尺寸对局域场因子的影响进行了计算和分析。