中国红花岗石与芝麻白花岗石的光谱研究     

刘小珍 《赣南师范学院学报》1999,(6):74-76

:本文用电感耦合等离子体原子发射光谱法、X荧光光谱法测定了中国红花岗石和芝麻白花岗石的成份、X射线衍射谱及红外光谱。并根据X射线衍射谱 ,用计算机检索其组成 ,对检索的结果进行对比得出 ,中国红花岗石的红色是由于它含有Fe的红色矿物而产生的  相似文献   

基模高斯光束在透镜焦面上的衍射场强分布     

徐寿泉 《韩山师范学院学报》1999,20(2):1-5

本文导出基模高斯光束入射时带有硬边孔经光阑透镜焦面上的衍射场强分布,用数值计算及图形分析方法得到的数据以及展现的规律性,对激光传输的相关应用提供一些有应用价值的结果。  相似文献   

Doing academic writing differently: a feminist bricolage     

Rachel Handforth  Carol A. Taylor 《Gender and education》2016,28(5):627-643

This article emerged as the product of a collaboration between two individuals at different stages of our academic careers, one a beginning researcher and the other a senior academic. Written as an experimental bricolage, the article weaves together two main threads to chart our engagements with feminist research and with writing practices, both of which we envisage as forms of feminist praxis. The red thread explores feminist research as a continuous accomplishment in which becoming-feminist is enacted through our different research narratives. The green thread employs diffraction, as an experimental practice to undo the normalised practices of academic writing by weaving together various kinds of texts. In its entangled quilting of the red and green threads, the article foregrounds bricolage as an experimental feminist praxis of doing collaborative writing differently.  相似文献   

草酸钾-过氧化氢加合物的合成及结构表征     

王斌  赵红坤 《德州学院学报》2008,24(6):63-64

采用溶液结晶法制备了草酸钾-过氧化氢（K2C2O4·H2O2）晶体,过氧化氢的含量接近于理论值．利用红外光谱和X-射线衍射对草酸钾-过氧化氢加合物的结构进行了表征,得到了其红外光谱和X-射线衍射谱图,并对谱图进行了简要分析．  相似文献   

夫琅禾费衍射的计算机模拟     

付文羽  彭世林  彭昌宁 《许昌学院学报》2002,21(5):6-7

根据夫琅禾费衍射理论 ,利用数学软件及计算机蒙特卡罗随机抽样方法 ,准确地再现了夫琅禾费衍射实验现象及规律 ,可应用于辅助教学  相似文献   

夫琅和费衍射图样的对称性     

林树 《四川教育学院学报》2005,21(9):95-96

文章研究了夫琅和费衍射图样的对称性与孔径的关系。用夫琅和费衍射的傅里叶变换观点，在衍射孔径上的场无位相变化的情形下，就不同形状孔径，对其夫琅和费衍射图样的对称性问题作比较深入的讨论。  相似文献   

High pressure research on materials     

P. Ch. Sahu  N. V. Chandra Shekar 《Resonance》2007,12(8):49-64

In this part of the article, various experimental techniques for investigating materials under high pressure are discussed. The effect of pressure on the behaviour of materials is discussed with suitable examples. P Ch Sahu (left) is at the Materials Science Division of Indira Gandhi Centre for Atomic Research, Kalpakkam. He is a specialist in the field of high pressure science and is presently heading this activity at his institute. N V Chandra Shekar (right) is a Senior Scientist at the Materials Science Division of Indira Gandhi Centre for Atomic Research, Kalpakkam. His primary research areas are in high pressure phase transitions and in synthesis and study of novel materials under extreme pressure and temperature conditions.  相似文献   

近场光的分析及其在信息存储技术中的应用     

朱立文 《鄂州大学学报》2007,14(2):33-34,46

该文介绍近场光研究的现状和近场光的特点,阐述近场光在存储技术中的几种应用技术。  相似文献   

夫琅和费衍射屏上光强分布研究     

郭文珍 《德州学院学报》2004,20(4):30-33

运用夫琅和费衍射分别讨论单缝衍射和光栅衍射屏上的光强计算问题,突出了光学研究问题的思路和方法.  相似文献   

轴对称衍射波场复振幅分布的一种新形式     

徐寿泉  洪正滨 《怀化学院学报》1995,(5)

本文导出轴对称衍射波场复振幅分布的一种新形式,尝试性地给出一种物理诠释,将这一分布应用到几种典型的衍射波场区域表现出较好的自洽性。  相似文献