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Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
Tan X.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
In ultraviolet spectroscopy  groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore  there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order  it is important to control the groove shape precisely  so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm  especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method  the required blaze angle is small  we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles  and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model  the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides  since the etched groove shape depends on the aspect ratio of the photoresist mask ridge  if we wish to fabricate larger gratings with this method  we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
一种对虾肠道微生物DNA的提取方法 专利  OAI收割
专利类型: 发明, 专利号: CN200910263665.0, 申请日期: 2010-06-23, 公开日期: 2010-06-23
刘淮德; 王雷; 刘梅; 王宝杰; 蒋克勇
收藏  |  浏览/下载:31/0  |  提交时间:2014/08/04
一种对虾肠道微生物DNA的提取方法  2)将洗脱液在200g离心5-10min  沉淀中加0.8-1.2mL?PBS以200g离心取上清菌液  3)将步骤2)所得上清菌液以1200g离心5-10min  4)将步骤3)所得上清菌液中加100-150μLCTAB提取液和10-15μL溶菌酶  而后加15-20μL?20%(W/C)SDS和10-15μL蛋白酶K  5)将水浴后菌液在4℃?3200g离心8-15min  6)将水浴后菌液以3200g离心8-15min  7)将步骤6)所得上清菌液中加上清菌液体积0.6-0.8倍的异丙醇  8)将步骤7)所得沉淀中加入600-800μL?70%预冷乙醇  其特征在于:1)将0.01-0.05g对虾肠道在液氮下研磨  取上清菌液待用  将两次离心所得上清菌液合并  收集上清菌液  放入37℃摇床  60-70℃水浴1-2h  取上清菌液  取上清菌液  而后于-20℃静置1-2h  14000g离心10-15min  并加入0.8-1.2mL?PBS  合并上清液以300g离心5-10min  振荡30-40min  而后加100-150μL?CTAB液和20-25μL?20%SDS混匀后  而后加入与上述上清菌液等体积的酚/氯仿混合液  再以4℃?14000g离心10-15min  所得沉淀即为对虾肠道微生物DNA。  15-25μL?PVPP匀浆和200-300μL?0.5%Tween-80  取上清菌液待用  涡旋  14000g离心10-15min  所得沉淀待用  均匀后吹打洗脱3-5min  60-70℃水浴10-15min  取上清菌液待用  
High temperature oxidation and corrosion resistant nanocrystalline coatings 期刊论文  OAI收割
Surface Engineering, 2003, 卷号: 19, 期号: 1, 页码: 32-36
F. Wang; S. Geng
收藏  |  浏览/下载:23/0  |  提交时间:2012/04/14
Microstructure and elevated temperature mechanical behavior of cast NiAl-Cr(Mo) alloyed with Hf 期刊论文  OAI收割
Journal of Alloys and Compounds, 2002, 卷号: 343, 期号: 1-2, 页码: 142-150
J. T. Guo; C. Y. Cui; Y. H. Qi; H. Q. Ye
收藏  |  浏览/下载:13/0  |  提交时间:2012/04/14
Effect of Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy 期刊论文  OAI收割
Materials Transactions, 2001, 卷号: 42, 期号: 8, 页码: 1700-1704
C. Y. Cui; J. T. Guo; Y. H. Qi; H. Q. Ye
收藏  |  浏览/下载:28/0  |  提交时间:2012/04/14
Elevated temperature compressive behavior of in-situ multiphase composites NiAl/Cr(Mo)-TiC 期刊论文  OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 1998, 卷号: 255, 期号: 1-2, 页码: 154-161
D. T. Jiang; J. T. Guo
收藏  |  浏览/下载:19/0  |  提交时间:2012/04/14
Investigation of NiAl-TiB2 in situ composites 期刊论文  OAI收割
Journal of Materials Research, 1997, 卷号: 12, 期号: 4, 页码: 1083-1090
J. T. Guo; Z. P. Xing
收藏  |  浏览/下载:27/0  |  提交时间:2012/04/14
Microstructure and mechanical behavior of the NiAl-TiC in situ composite 期刊论文  OAI收割
Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, 1997, 卷号: 28, 期号: 4, 页码: 1079-1087
Z. P. Xing; J. T. Guo; Y. F. Han; L. G. Yu
收藏  |  浏览/下载:31/0  |  提交时间:2012/04/14
Tensile properties and microstructures of NiAl-20TiB(2) and NiAl-20TiC in situ composites 期刊论文  OAI收割
Materials & Design, 1997, 卷号: 18, 期号: 4-6, 页码: 357-360
J. T. Guo; D. T. Jiang; Z. P. Xing; G. S. Li
收藏  |  浏览/下载:28/0  |  提交时间:2012/04/14