非恒定浓度氡刻度室及其在测氡刻度中的应用

非恒定浓度氡刻度室是一种用于相对测量的刻度装置。文章介绍了装置的基本原理和方法。刻度实验指出,刻度系数相对标准差为±10%。氡刻度室还具有经济、方便的特点。     

固体表面改性及其应用 第三讲 固体表面改性的应用

本文通过日常生活中的例子以及改性粉体在涂料、油墨和橡塑体系中的应用实例来说明表面改性的重要性。     

机载电子设备机柜布线工艺设计

时电子机柜传统的走线方式进行了分析、解剖，提出了新的走线方案模式，从工艺角度时机柜走线结构进行了改进设计，使之更适合于机栽机柜的布线要求。     

浅谈施工企业纳税筹划

本文就施工企业如何做好税收筹划,获得节税收益,谈几点粗浅的看法。     

吉林省工业节水与技术分析

吉林省工业用水水平较低,节水潜力较大.本文简要介绍工业节水的重要性,结合工业实际,分析工业节水的技术途径、技术难点,促进工业节水,提高水资源利用效率,实现吉林省经济社会的可持续发展.     

非织造布在橡胶制品中的应用

介绍了非织造布在各种橡胶制品中的几个典型应用研究，展示了橡胶复合制品的发展前景。同时说明了非织造布可以从许多方面弥补橡胶制品本身的不足，从而使橡胶制品的技术性能提高、使用性能增强，是一种非常理想的增强骨架材料。     

New way of using rheometers in scanning mode for the cure of rubbers

Rheometers, especially the moving die rheometer (MDR), is used under isothermal conditions for the cure of rubbers. Thus, at least three experiments are necessary at different temperatures selected within a rather narrow temperature window, for determining the kinetic parameters of the cure. Moreover, it takes some time for the sample to attain the selected temperature, and for a high temperature of the dies, the reaction takes place before thermal equilibrium has reached. With this new way of using the rheometer, the dies with the rubber samples in them are heated from the room temperature up to the selected final temperature, with a constant heating rate. Calculations have been done for evaluating the performances of this method. The kinetic parameters such as the activation energy and the pre-exponential factor, as well as the order of the overall reaction, are obtained from only one experiment. The temperature in the sample is constant and nearly the same as that of the heating dies. The profiles of temperature and of the state of cure developed through the sample thickness are rather flat during all the processes. The parameter of interest, with the value of the heating rate, should be between 2 and 10°C/min, and perhaps much better between 2 and 5°C/min.     

利用裂变径迹探测器刻度缓发中子监测仪的探测效率

一、前言本文所指的缓发中子监测仪是探测燃料元件破损的仪器,探头为BF_3计数管,当燃料元件破损后,裂变产物所释放的缓发中子经慢化后成热中子,进入BF_3计数管产生~(10)B(n,α)~7Li反应。记录其脉冲,监督燃料元件的破损。     

The “rubber-mask” technique-II. Pattern storage and recognition

This paper briefly summarizes much of the work in pattern recognition to date, and relates the rubber mask technique to previous work. A scheme for incorporating flexible-mask methods into a proposed pattern recognition and memory system is presented. A discussion based on some facts and on some conjecture of the human eye/brain system and how it recognizes patterns, possibly by flexible matching, is also presented.     

α粒子径迹法研究硼在焊缝金属中的分布

使用α粒子径迹法研究了硼在焊缝金属中的分布。并通过透射电镜分析和化学相分析确定了含硼相的结构和数量。