发动机气缸高精度搪削的工艺探讨     

苏华礼  刘素华 《安阳师范学院学报》2005,(2):142-143

从汽车发动机气缸搪削中常见的维修精度低、表面粗糙值达不到规定的要求等诸多问题进行了分析研究,找出了主要矛盾,并提出了改进方法.  相似文献   

PLC在火电厂化学补给水处理自动控制系统中的应用     

薛岩  杨继宗 《兰州石化职业技术学院学报》2003,3(4):24-26

着重从化学给水的系统结构到PLC的组态和软件设计等方面做了研究和总结。由于PLC具有运行稳定性和高可靠性等特点，它与工业控制计算机连网对于电厂化学水处理系统进行自动控制具有其独特的优势。  相似文献   

Windows中的多线程编程   总被引：1，自引：0，他引：1  

胡德斌 《怀化学院学报》2002,21(5):60-62

主要阐述了进程、线程的概念和多线程的实现原理 ,并通过一个实例介绍了多线程编程的基本方法  相似文献   

FTIR研究TC—114对环氧树脂固化的催化作用     

葛建芳 《茂名学院学报》1994,(1)

用FTIR“原位”技术,研究TC—114偶联剂对环氧E—44和二氨基二苯基甲烷(DDM)固化反应的催化作用,得出固化程度与时间的关系曲线.结果表明,催化作用明显.  相似文献   

Abstraction and consolidation of the limit procept by means of instrumented schemes: the complementary role of three different frameworks     

Ivy Kidron 《Educational Studies in Mathematics》2008,69(3):197-216

I investigate the contributions of three theoretical frameworks to a research process and the complementary role played by each. First, I describe the essence of each theory and then follow the analysis of their specific influence on the research process. The research process is on the conceptualization of the notion of limit by means of the discrete continuous interplay. I investigate the influence of the different perspectives on the research process and realize that the different theoretical approaches intertwine. Moreover, I realize that the research study demanded the contribution of more than one theoretical approach to the research process and that the differences between the frameworks could serve as a basis for complementarities.  相似文献   

Narratives as Tools in Designing the School Chemistry Curriculum     

Agneta Bostr?m 《Interchange》2008,39(4):391-413

This article is based on results from a research project which focused on chemistry teachers and student narratives from lived experience. The purpose was to find a way to make abstract chemistry more meaningful. The project began with six experienced teachers who used narratives and stories as a didactic tool. These narratives stemmed from the teachers individual lived experience and thus were designed differently. Later, interviews with students showed that five adult students and six younger students all appreciated the use of narratives as ameaning-making activity to help them grasp the abstract subject. The most interesting finding was that the students revealed several narratives from their own lives where the theories of chemistry played an important role in explaining events that otherwise had been mysterious to them. Thus the teachers and students showed that the ancient human method of sharing experience through narrative is still alive and useful in chemistry education.  相似文献   

过程教学法应用过程中的若干问题研究   总被引：1，自引：0，他引：1  

HAO Xiao-jing 《教育理论与实践》2008,(33)

近年来,国内关于过程教学法在英语写作教学中的应用多以教学模式的介绍和复制为主,实践效果并不明显。其根本原因在于过程教学法在应用过程中普遍忽略了对命题模式、激励机制及评估模式等若干问题的深入探讨和研究。只有对其进行深入研究并做出改变,才能够充分发挥过程教学法的优势,全面提高学生的写作水平。  相似文献   

英语语言的历史沿革     

白敏 《涪陵师范学院学报》2004,20(2):60-63

英语发展经历了古英语时期、中古英语时期和现代英语时期等三个时期。其间，英语词尾不断曲折变化。英语发展也呈现出词汇量逐渐扩大和句法不断澄清两种趋势，使英语发展成为一种成熟的、富于表达力的语言。  相似文献   

学生对教师课堂教学质量评价浅析     

陈虹  张桂芳 《宁德师专学报(自然科学版)》1997,(2)

随着医学技术的迅猛发展，中专卫校应全面提高教学质量才能同社会需求相适应．而学生参与评价教师的课堂教学质量是评价整个教学质量的核心内容，也是教学管理的主要环节．将学生参与评教的资料在微机上进行统计处理，将其结果进行分析讨论，及时与教师反馈，有助于教师了解自己整体教学水平，以及不足之处，为优化教学过程提供科学依据，有利于提高教师课堂教学质量．  相似文献   

Web课件制作过程中的优化处理     

孙萍 《天津职业院校联合学报》2006,8(2):62-64

web课件在制作过程中的优化处理。优化处理从两方面介绍,一方面是加快页面下载的方法,另一方面是进行页面的优化处理。对图形、表格、htm l代码、兼容性的优化及其他多媒体元素的优化方法。从而逐步将web课件推广,以适应现代教学的需要。  相似文献