共查询到20条相似文献,搜索用时 46 毫秒
1.
2.
3.
4.
5.
6.
7.
仪器分析是一门理论与实际联合紧密的交叉学科,传统的教学模式尚可改进。如果将计算机仿真模拟引入仪器分析的理论教学和实验教学,可以激发学生对仪器分析的学习兴趣,改善教学效果。在仪器分析理论教学中利用计算机仿真模拟,有利于培养学生的学习兴趣,掌握仪器的工作原理;在仪器分析实验教学中用计算机仿真模拟进行预实验,可以突破时间和空间的限制,强化学生实验技能,培养学生的实践能力和独立创新能力,提高仪器分析实验教学质量和效果。 相似文献
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
The Kubitschek Array Correction has been detected and measured in microsphere material for the first time. The introduction of two new techniques made it possible to carry out the necessary length measurements at the 0.01 μm level by optical microscopy. 相似文献
18.
19.
Six specimens of fused cast AZS 33#material were taken as samples,and their chemical compositions and physical properties( initial separating temperature o glass phase,corrosion amount in 24 h,glass phase seepage,and bulk density) were tested; low powered backscattered electron images of the samples( three for each sample) were taken by a scanning electronic microscope with a reinforced backscattering probe. Then,firstly,the images were processed,and the phase compositions(relative contents of pores,matrix,alumina- zirconia eutectoid and primary baddeleyite) of the samples were obtained by counting. Secondly,the correlation coefficients of all parameters were calculated; indistinctive coefficients and unimportant variables were eliminated by F- test. Thirdly,the roadmap of the parameters was established and explained according to professiona knowledge. 相似文献
20.
针对延迟焦化事故数据少、事故信息不完整等特点,运用灰色系统理论中的灰色关联分析方法,建立延迟焦化事故与其事故原因间的关联矩阵,进行事故原因的灰色关联分析,确定事故各原因的重要程度。研究结果表明:操作失误、制造缺陷和违章作业是导致延迟焦化事故的主要原因,而操作失误原因中工艺操作波动和阀门开关错误又是导致事故的主要因素,再从预防操作失误和违章作业等人为因素的角度,提出了防范事故的措施,为延迟焦化安全管理提供科学依据。 相似文献