中职手工制作课的教学内容探究

通过对学情及现有教材分析．明确中职手工课教学内容，对中职教学模式改革具有现实的指导意义。     

浅谈三维动画的应用与制作

本文简洁阐述了三维动画的应用范围及意义,介绍了三维动画的基本制作原理和技术制作的基本方法,提供了一种制作三维动画的捷径.     

KNOT STRENGTH OF INDUSTRIAL TEXTILE FIBRES

In this paper, the knot strengths of the seven strands which were made of polyethleneterephthalate(PET), nylon 6, polyvinyl formal fibre, polypropylene and polyethylene with differentspecification used for industrial purposes were tested and discussed. The results of experimentshow: the knot strength loss does not only depend on the breaking elongation and the diameter ofsample, but also on the shape of the load-extension curve and twist factor of sample and other fac-tors; the range of the knot strength loss and the breaking energy loss vary in a wide range, in thepresent case. the former is from 2.7% to 58.14% and the latter from 16.36% to 78.76%. Thestrength loss of the polypropylene filament is the least among the samples investigated.     

褪色光度法测定氰化物

根据ＣＮ－ 对５－（４－磺酸基苯偶氮）－８－氨基喹啉（ＳＰＡＱ）－Ｎｉ２＋ －ＣＴＭＡＢ体系的干扰褪色作用，建立了一种测定氰化物的新方法。该方法比传统方法操作简便，不需要萃取。体系λｍ ａｘ＝ ６００ｎｍ ，ε＝ ６．８８×１０４ Ｌ·ｍ ｏｌ－ １·ｃｍ － １。ＣＮ－ 含量在０～５ μｇ／２５ｍ Ｌ内符合比尔定律。方法用于环境水样中氰化物的测定。     

硝基氯苯在水中溶解度的测定

设计一个测定单环芳烃水中溶解度的装置，并对黄河水中有检出的几种单环芳烃污染物的溶度进行了测定，邻，对，间硝基氯苯的测定值分别为３７１．７ｍｇ／Ｌ，２６７．８ｍｇ／Ｌ及２６２．７ｍｇ／Ｌ。     

光纤电压互感器暂态信号处理

对光纤电压互感器暂态信号处理的原理和设计进行了论述，提出了光电系统信号延时测试方法，分析了延时产生的原因，展示了动验结果，光纤电压互感器频带宽，能满足继电保护响应２ＫＨz信号的要求；系统延时小，总延时不超过４２μｓ；波形无失真，能响应三相短路和单相对地短路等故障，正确实现继电保护。