低压省煤器在电站锅炉中的应用

针对排烟损失大的问题，某些电厂在电除尘器出口加装低压省煤器，用来加热凝结水或热网补水，从而吸收烟气热量，实际测试结果表明，对于节能降耗和保证安全运行均起到了重要作用。     

烧成温度与导电陶瓷电性能关系的研究

本文通过X—射线衍射分析及阻温特性别定等方法研究了SnO2导电陶瓷的晶相组成和电性能与烧成温度的关系。结果表明，随烧成温度提高试样中SnO2金红石型晶体的含量有所增加，试样的材料常数和活化能降低，材料导电性能增强，同时还对导电陶瓷的导电机理进行了探讨。     

Application of advanced core process monitoring procedures in German power reactors

The nuclear reactor core design and the nuclear fuel management have been changed remarkable during the last few years. This development was initiated by increasing costs for the fuel recycling and nuclear waste storage. The fuel material, the fuel pellet fabrication, the fuel assembly structure and the core composition have been varied to get an effective fuel exploitation. Based on advanced core process conditions the reactor power and the fuel burn-up have been increased at German plants in recent years. Improved dynamic process monitoring procedures are required to get more information about the varied core process behaviour during the reactor operation. Since several years ISTec has been performed investigations to the process monitoring based on process signal measurements in German nuclear power plants. Using the standard instrumentation of the plants process signals have been measured and analysed by means of the digital data acquisition system SIGMA. The measured time signals are influenced by core process transients, global and local process fluctuations and by signal line transfer functions. Advanced time series analysis methods have been applied to separate different process effects in the multiple signal matrix. The separation of different process influences can improve significantly the information about the process condition in the reactor core.     

堆泵浦3He-Ar-Xe激光体系小信号增益与效率实验研究

介绍了CFBR-Ⅱ堆泵浦3He-Ar-Xe体系1.73μm波长激光小信号增益和泵浦效率的实验研究.在脉冲峰热中子注量率为6.9×1014cm-2.s-1、3He、Ar、Xe气体的比例为80.219.30.5,总压强为8.3×104Pa时,采用透射率从1.7%到10%的6个谐振腔输出镜均获得了激光输出.在谐振腔输出镜透射率为7%时,得到了激光脉冲峰功率为45mW,其对应的激光泵浦效率为1%.在此基础上,利用Rigroa分析方法拟合出3He-Ar-Xe体系激光的小信号增益为0.24%/cm,饱和光强为36W/cm2.     

基于CL语言的反应釜温度控制方案

针对过程生产温控现状,根据PID调节器的控制特性,结合CL语言的顺控功能,设计了双调节器温控回路,实现了冷、热媒顺利可靠的切换.实践证明,温控准确率达到±1℃,同时从热媒到冷媒的切换时间小于5s,实现了温度的在线控制.     

自适应神经模糊系统在托砖架最高温度预测中的应用

气流床气化炉在气化工业中得到了广泛应用，托砖架用于支撑气化炉耐火砖的重量，必须有足够的强度，温度是托砖架强度的重要影响因素。传统方法使用有限单元法计算，需要编制复杂的计算机程序。本文使用已有软件计算出托砖架最高温度点温度，对一个自适应神经模糊系统(ANFIS)进行训练，然后对未知数据进行预测，取得了准确的结果。     

Effects of Deposition Temperature on the Properties of Fluorinated Amorphous Carbon Films

Fluorinated amorphous carbon films (a-C:F) were prepared at different temperatures using a microwave electron cyclotron resonance chemical vapor deposition (ECR-CVD) reactor with CHF3 and C2H2 as source gases. Films were annealed at 500℃ in vacuum ambience inorder to investigate the relationship of their thermal stability, optical and electrical propertieswith deposition temperature. Results indicate that the films deposited at high temperature have a less CFx bonding and a more cross-linking structure thus a better thermal stability. They also have a lower bandgap, higher dielectric constant and higher leakage current.     

Plasma Induced Degradation of Benzidine in Aqueous Solution

The degradation of benzidine in aqueous solution by the low temperature plasma was examined. The results showed that the concentration of medium and the value of pH have an appreciable effect on the degradation of benzidine. What is more important is that iron ions acting as a catalyst play an important role in this reaction. For exploring the degradation mechanism of benzidine, some of the intermediate products were recorded by HPLC (high performance liquid chromatography).     

压缩空气干燥器的选型比较

对现行的几种类型的压缩空气干燥器的性能、优缺点及技术指标进行比较，提出用户在选择干燥器时应根据工艺要求合理经济地选择干燥器，以最大可能地节约购买费用和使用费用。     

顾及多个因子的卡尔曼滤波法在大坝变形分析中的应用

首先建立大坝变形与时间相关关系的变形模型，从中找出变形与时间相关关系的最佳变形模型;然后考虑到库水位和温度对大坝变形的影响，建立变形与时间、水位、温度相关关系的变形模型;最后将变形与时间、水位、温度相关关系的变形模型的模型参数作为状态向量，用卡尔曼滤波法进行大坝变形分析。实例计算表明这种建模方法效果较好。