An Informetric Investigation into the Potential for Change in Belgian Art Education at the Beginning of the Twentieth Century

The beginning of the twentieth century was a period of pedagogical enthusiasm and renewal in the field of education. Based on a list of articles concerning art education published in Belgian periodicals between 1903 and 1923, the author undertakes an analysis of the title words in order to study how the subject was able to evolve. For this purpose, the pertinent title words are grouped into content categories. It can be seen that these content categories demonstrate specificity compared to other periods. The specificity of the subject at a given moment implies that the transformation of the subject consists of the emergence, the decline or the exchange of categories, which can also be demonstrated. The connections of these variations to historical facts are substantiated. It can therefore be stated that these variations represent the historical evolution of the subject. However, such emergence, decline and exchange of categories is only possible on condition that each category is able to vary independently of the others. This is shown by an autonomy index as well as by an 2‐test. Thus, art education did not drop from the sky as a ready‐to‐teach school subject. Art education is always what the people make of it, which makes reflection on what it could be or has to be so important at any given moment too.     

钻孔中煤层气压力测定结果的实用意义

通过对钻孔煤层气压力测试机理分析，肯定了该方法在煤层气开发评价工作中应用的可能性，并强调了测试中应注意的几个问题。举例分析了测试成果的应用效果。     

基于激光光斑检测的数码相机测距技术

提出了一种基于激光光斑检测的数码相机测距方法,在数码相机上加装一个激光器,使激光光束与相机镜头的光轴平行,对拍摄到的数码相片中的激光光斑进行检测,再根据透镜成像的物像关系实现距离的测量.研究了利用LoG滤波器对激光光斑进行增强的方法,实现了背景灰度值大于光斑灰度值情况下的光斑分割,从而实现激光光斑的位置检测.并进行了实验研究,实验结果表明,采用本文提出的方法实现对物体距离的测量是可行的.     

师范生教学隐性知识的测量及其教育启示

结合斯腾伯格等人关于隐性知识、教学隐性知识的相关研究,教学隐性知识可以界定为在教育情境下的、存储于个人大脑中、难以明确表述的、与教学目标实现有关的知识。以师范大学生为研究对象,对国外已有的教学隐性知识量袁进行修订,结果显示修订的量表具有较好的信、效度指标;进一步对比研究显示,师范大学生、教龄2年以内的中学教师和教龄5年以上的中学教师间的教学隐性知识水平差异显著。这表明教学隐性知识及其量化的相关研究对我国的师范教育有重要的启示意义。     

Error analysis of non-spherical raindrops on precipitation measurement

Radar cross section (RCS) of non-spherical raindrops is calculated by using the software CST based on finite integral method and compared with RCS of spherical raindrops. The revised factor of non-spherical raindrops is obtained. The radar reflectivity with precipitation change of four distribution models of M-P, Gamma, JD and JT combining the revised factor is gotten using trapezoidal integration. When the influence of non-spherical raindrops is considered, the accuracy of precipitation measurement of four distribution models can be separately improved 8.77%, 8.47%, 10.53% and 8.04% in the case of rain intensity is 100 mm/h.     

学前儿童绘画教育之思索

学前儿童的绘画是溶入其自身情感及其表象,通过儿童内在自我建构形成的一种自我表现形式。学前儿童绘画是社会文化的一种反映,是儿童的发展水平的一种表现。学前儿童绘画教育必须在尊重儿童发展水平的基础上,结合本民族的文化特点,在尊重儿童的主体性和为儿童绘画提供有效帮助的两极动态变化之间加以调适,使之趋向平衡,使儿童潜能得以最大限度的舒展。     

三相四线有功电度表不接零线计量时的情况分析

本文通过对三相四线有功电度表正确接线和某相电压线圈断路、短路时计量情况的分析，论述了三相四线有功电度表计量时接入零线的重要性。     

8051单片机投料量控制系统

本介绍一种用8051单片机控制的投料量测量系统功能，原理及接口电路，它适合化工生产过程中投料量的定量控制。     

如何提高AutoCAD的绘图效率

在长期AutoCAD教学实践的基础上 ,总结学生在学习和使用中存在的问题 ,经研究 ,从遵循原则、巧用命令、掌握技巧、快捷工具、功能扩展五个方面提出提高绘图效率的途径和方法 ,使学生绘图能力得到迅速提高