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金属研究所 [7]
长春光学精密机械与物... [1]
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期刊论文 [7]
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会议论文 [1]
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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.
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浏览/下载:25/0
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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
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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
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浏览/下载:23/0
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提交时间:2012/04/14
1200 degrees c
microcrystalline coatings
selective oxidation
aluminide coatings
k38g superalloy
behavior
alloys
platinum
900-degrees-c
morphology
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
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浏览/下载:13/0
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提交时间:2012/04/14
deformation
NiAl-28Cr-5Mo-1Hf
hot isostatic press
creep
in-situ composites
compressive properties
creep-behavior
nial-cr
deformation
transition
strength
ni2alti
1200-k
1300-k
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
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浏览/下载:28/0
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提交时间:2012/04/14
phose transition
deformation
hot isostic pressing
NiAl-28Cr-5.8Mo-0.2Hf
in-situ composites
mechanical-properties
compressive properties
nial-cr
creep
phase
transition
behavior
ni2alti
1200-k
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
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浏览/下载:19/0
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提交时间:2012/04/14
deformation
NiAl
particulate composite
reaction synthesis
nialfe matrix composites
slow plastic-deformation
rod-plate
transition
mechanical-properties
particulate composites
intermetallic
alloys
combustion synthesis
1200-k
1300-k
cr
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
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浏览/下载:27/0
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提交时间:2012/04/14
crack deflection processes
compression properties
titanium diboride
nial-matrix
deformation
interfaces
microstructure
particulate
behavior
1200-k
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
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浏览/下载:31/0
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提交时间:2012/04/14
nickel aluminide intermetallics
crack deflection processes
fracture-toughness
compression properties
matrix composites
interfaces
deformation
particulate
1200-k
1300-k
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
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浏览/下载:28/0
  |  
提交时间:2012/04/14
tensile properties
microstructures
NiAl-20TiB(2)
NiAl-20TiC
in situ
composites
compression properties
interfaces
deformation
particulate
1200-k
1300-k