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δ18O and δ13C of planktonic foraminifer Globigerinoides ruber: Effects of test size sampling and laboratory treatment 期刊论文  OAI收割
PALAEOWORLD, 2024, 卷号: 33, 期号: 1, 页码: 257-266
作者:  
Xu, Ye;  Li, Bao-Hua
  |  收藏  |  浏览/下载:9/0  |  提交时间:2024/05/15
Effects of Gamma Radiation and Heat Treatment on the Photoluminescence of the Fluoride-Containing Phosphate-Based Glasses 期刊论文  OAI收割
ecs journal of solid state science and technology, 2016, 卷号: 5, 期号: 10, 页码: r192-r197
作者:  
He, Quanlong;  Wang, Pengfei;  Lu, Min;  Peng, Bo
收藏  |  浏览/下载:72/0  |  提交时间:2016/11/08
Laser cleaning of neutral attenuator plate based on low power laser diode (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China
作者:  
Chen Y.;  Li L.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
Laser cleaning is a non-contact  green and environmental cleaning method  which can effectively remove particulate contaminations of sizes as small as 0.1 m without damage to the optics. But most laser cleaning devices are large and heavy  also expensive due to using large lasers such as CO2 laser  YAG Laser etc. In this work a low power LD was tried to clean fingerprint and dust contaminated on the surface of the attenuator glasses plates. In the laser cleaning experiment with low power diode the fingerprint grease can be efficient to be cleaned  but there is no evident effect for cleaning inorganic dust. The cleaning different degree of fingerprint contaminations was investigated at the variable laser parameters  including laser power and irradiation time. An optical microscope was used to analyze the cleaning effect. The results show that low power LD can effectively remove the fingerprint on the surface of absorptive-type attenuator glass plates. On the premise that the attenuator optics glasses are not damaged  the cleaning area increases with the increase of radiation time and laser power. The cleaning area doesn't change much with the variation of laser frequency when the other parameters are the same. (2013) Trans Tech Publications  Switzerland.  
定氢钢样制备方法研究 会议论文  OAI收割
2012国际冶金及材料分析测试学术报告会(CCATM2012), 北京, 2012-10-31
朱跃进; 孙明月; 李素娟; 郝露菡; 邓羽
收藏  |  浏览/下载:21/0  |  提交时间:2013/08/21
Method for the fabrication of isometric mesh on the concave of a spherical substrate (EI CONFERENCE) 会议论文  OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China
作者:  
Feng X.-G.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Metallic mesh has been widely used in electromagnetic interference windows. While the duty ratio of curved mesh equals to planar mesh'  the theory of planar mesh may be applied to curved mesh according to equivalent-circuit model. So the idea that latitude lines intersect latitude lines to form isometric mesh on the concave of a sphere is put forward  and the method of fabricating the mesh by concentric optical scan is introduced. The movement parts of equipment consist of an erection turning  a horizontal dividing and a pitching dividing spindle. Firstly  a spherical substrate is fixed on the horizontal dividing spindle that has been set horizontally on the erect turning spindle  the substrate revolves around the axis of the erect spindle  the tube of object lens that is fixed on the pitching dividing spindle steps at pitching direction  and a revolving circuit of the substrate corresponds to a step of the tube. Gradually  a set of latitude lines is attained. Afterward  the substrate makes a quarter turn around the horizontal spindle  another orientation latitude lines are also gained. Thus  the isometric mesh on the concave of a spherical substrate is gained. The process comprises surface cleaning  coating photoresist  laser direct writing  development  evaporated film  dissolving photoresist and plating. The fabricated spherical mesh has a line width of 7 m and a period of 600m. Experiment shows that infrared transmission and electromagnetism shield efficiency of the metallic mesh are relatively consistent with theoretical value.