Comparison between a white-light interferometer and a tactile formtester for the measurement of long inner cylindrical surfaces

Shape measurements of engineering surfaces are an interesting and important application for white-light interferometry (WLI). Due to some factors such as: (a) the high-processing speed, (b) the ability to measure a huge quantity of points of the evaluated surface, and (c) the non-contacting nature; WLI has become a valuable tool for practical applications. This paper shows the achieved comparison between a modified white-light interferometer and an established measurement system, namely a formtester with a tactile spherical stylus sensor, which is the most commonly used instrument in the industry. Furthermore, this paper shows that the combination between the modified white-light interferometer and an adequate measurement and processing strategy has enabled to obtain a good agreement between optical and tactile measurements of long inner cylindrical surfaces. A cloud of points (COP) measured with the modified white-light interferometer has presented a standard deviation of about 0.3 μm when it was compared with formtester measurement of the same parts.     

用Mathematica来实现非线性规划问题

本文用Mathematica编程实现了一类有约束条件的非线性规划问题的求解。文中先介绍了该类非线性规划问题的相关定义如约束条件、惩罚函数和内点法等,又介绍了用内点法解决非线性规划问题的相关定理和算法。经过研究这些理论和算法,结合Mathematica语言的特点编写出了相应的程序,并计算了几个实例。最后简单分析了用mathematica编写内点法程序的优越性和程序中所涉及到的部分函数和语句的功能及其作用。     

江西省生态渔业模式初探

在分析江西省生态渔业发展的历史背景后归纳总结了江西省成功的生态渔业典型模式，探讨了其内部运行机制和物能循环转化流程，并就文中模式的应用推广提出了作者的见解．     

Discovery of potassic spilite (or poenite) in Langshan Group of Tanyaokou District, Inner Mongolia, China

It is believed that the albite-potash-feldspar-greenschists in the middle Proterozoic Langshan Group in Tanyackou District are synsedimentary potassic spilite (or poenite) based on the following facts and features: (i) they occur in beds and look blackish (or apple) green and compact; (ii) they bear blasto-glomeroporphyritic and blastocrystalloclastic crystals which consist of (altered) albite laths with hollow skeleton crystal texture in which there are slender dark strips and minor pyroxene, and blasto-amygdaloid filled with pyrite, chlorite, magnetite, etc.; (iii) the results of the petrochemical diagrams show that they are orthometamorphites; (iv) Sm-Nd isotopic age of them is 1 824 Ma (model age (t_DM) is 2 006–2 132 Ma).     

内蒙古高校学报2002～2006年评价指标统计分析

以《中国学术期刊综合引证报告》(CAJCCR)为评价工具,采用文献计量学、数值比较和分类统计的方法,对内蒙古13家高校学报2002~2006年的评价指标(载文量、影响因子、总被引频次、基金论文比)进行分析.结果表明,内蒙古13家高校学报总体质量不断提高,但个体之间的差异和差距较大,发展不平衡,与全国同类高校学报相比,内蒙古高校学报质量偏低,作为地方高校学报应找准定位,走特色化办刊之路.     

蒙古独立外因探源

蒙古独立问题前后经历约半个世纪 ,其外部原因与沙俄、苏俄、苏联的扩张主义 ,二战结束前美国的大国主义及蒋介石政府的集团利益驱动是分不开的。它是大国政治交易的结果 ,是苏美强权政治的产物     

广义半内积空间中的Berberian技巧

解决广义半内积空间中的Ｂｅｒｂｅｒｉａｎ技巧，并利用该技巧得到自反、严格凸的Ｂａｎａｃｈ空间中广义ｐ自共轭算子的谱的性质。     

所有子群皆循环或正规的有限2-群

研究了所有子群皆循环或正规的有限2群,并给出了其完全分类.     

蒙古留学生的汉语教学研究

随着中蒙两国在经贸、科技、文化等各个领域合作的进一步扩大,两国人民之间的往来不断增多。蒙古国也掀起了学习汉语的热潮。因此针对蒙古国留学生的教学研究,成为留学生教育的一个不容忽视的课题。从第二语言教学活动的四大环节即总体设计、教材编写(或选择)、课堂教学和成绩测试这4个方面来研究对蒙古留学生的汉语教学,以期在较短的时间内使蒙古留学生更好地掌握汉语听、说、读、写的能力。     

邢台煤矿水文地质模型研究

通过对水文地质条件的分析和处理,建立了邢台煤矿石炭系太原组大青灰岩含水层的水文地质物理模型.在此基础上,建立了大有含水层地下求渗流运动的数值模型.用内点法对模型进行了识别和求参,并对邢台并田-320m水平的疏干量和涌水量进行了预计.