连续流动分析仪应用于水中硫化物的测定

对连续流动法测定硫化物进行初步探讨和研究。同时与其他几种测定硫化物的方法进行了比较。实验结果表明，连续流动法对硫化物分析在线性、稳定性、最低检测限、准确性和精密度等方面均优于其他方法。     

In situ synthesis of TiC-Al (Ti) nanocomposite powders by thermal plasma technology

A novel processing technology was developed to investigate in situ synthesis of TiC-Al (Ti) nanocomposite powders by thermal plasma technology. Thermodynamic analysis was performed to predict possible starting materials and synthesizing conditions of TiC-Al (Ti) nanocomposite powders. A mathematical model was developed to describe temperature profile and velocity distribution in the reactor. The model is applied to optimize feeding rate, input power, and other processing parameters of TiC-Al (Ti) nanocomposite powders by thermal plasma technology, and to predict which materials can be used as starting materials. This paper emphasizes the investigation of the effect of feeding rate, input power, mole ratio, and other process parameters on synthesis of TiC-Al (Ti) nanocomposite powders by thermal plasma technology. The experimental results showed that TiC-Al (Ti) nanocomposite powders can be synthesized in situ by thermal plasma technology, and the average size of TiC-Al (Ti) nanocomposite powders was less than 100 nm.     

试论当代中国邪教的基本特征及其防范措施

在论述邪教基本内涵的基础上,着重从五个方面分别阐述了当代中国邪教的基本特征及其防范的主要措施.     

球墨铸铁材料对激光的吸收率

球墨铸铁因其优良性能而被广泛用作模具材料。对球墨铸铁冲压模具的激光表面处理已成为改善其耐磨性、提高使用寿命的重要方法。一定激光参量下吸收率的大小又直接影响到表面处理的质量。因此,确定球墨铸铁材料对激光的吸收率十分必要。通过热电偶测温,计算机数据采集系统进行定点温度采集,并结合数值模拟方法,对吸收率进行了标定,即首先根据预置的吸收率计算,预测被测点处的温度响应,并与实测响应比较,不断修正吸收率值,使预测温度响应和实验值吻合,由此获得吸收率。采用这种方法获得了球墨铸铁材料在大气条件下对激光的吸收率为23.3%。为激光处理球墨铸铁材料时工艺参量的选择和优化提供了一定参考。     

新型废水厌氧处理工艺——内循环厌氧反应器

介绍内循环(IC)厌氧反应器的发展、基本结构、运行机理。分析该反应器的工艺过程,指出该工艺具有处理效率高、抗冲击能力强等优点。针对IC反应器存在的缺陷,人们对该反应器进行技术改进:通过提高它的内循环的气量进行处理低浓度有机废水;增加外循环装置缩短IC反应器的启动周期。     

供水系统信息化技术应用探讨

保证水量，提高水质，保障安全，优质服务和降低成本是城市供水系统当前的主要任务，而自动化和信息化则是完成该任务的重要技术手段。     

基于μC/OS-Ⅱ操作系统的液晶驱动解决方案

介绍了一种基于μC/OS-Ⅱ操作系统的LCD驱动程序,给出了硬件结构和软件模块.采用文中提出的显示缓冲区 屏幕刷新的方法,完全能够实现静态文本与滚屏动画的显示功能.     

单嘴精炼装置真空室内卷渣水模型研究

本文针对长城特殊厂单嘴精炼装置进行了真空室内加渣精炼的卷渣水模型研究。在试验的基础上，首先讨论了真空室内卷渣现象的工艺过程，然后进一步得出了临界吹气量的表达式。研究结果为工业性生产进一步提高钢的质量打下了基础。     

Nonparametric change detection and estimation in large-scale sensor networks

The problem of detecting changes in the distribution of alarmed sensors is considered. Under a nonparametric change detection framework, several detection and estimation algorithms are presented based on the Vapnik-Chervonenkis (VC) theory. Theoretical performance guarantees are obtained by providing error exponents for false-alarm and miss detection probabilities. Recursive algorithms for the efficient computation of test statistics are derived. The estimation problem is also considered in which, after detection is made, the location with maximum distribution change is estimated.