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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
半导体研究所 [2]
长春光学精密机械与物... [1]
上海天文台 [1]
寒区旱区环境与工程研... [1]
中国科学院大学 [1]
上海光学精密机械研究... [1]
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OAI收割 [4]
iSwitch采集 [3]
内容类型
期刊论文 [4]
学位论文 [2]
会议论文 [1]
发表日期
2007 [7]
学科主题
半导体物理 [1]
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Scratching technique for the study and analysis of soil surface abrasion mechanism
期刊论文
iSwitch采集
GEOMORPHOLOGY, 2007, 卷号: 92, 期号: 1-2, 页码: 1-11
作者:
Ta, Wanquan
收藏
  |  
浏览/下载:107/0
  |  
提交时间:2019/10/08
wind abrasion
scratching test
plastic deformation
brittle cracking
specific surface abrasive energy
specific surface hardness
Study of multi-fractal spectrum of sol-gel hydrophobic anti-reflective sio2 coating after laser-conditioning
期刊论文
iSwitch采集
Acta physica sinica, 2007, 卷号: 56, 期号: 7, 页码: 3833-3838
作者:
Zhang Lei
;
Xu Yao
;
Jiang Xiao-Dong
;
Lang Li-Ping
;
Lue Hai-Bin
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2019/05/10
Sio(2) ar coating
Laser-conditioning
Mfs
Lidt
1-mm gate periphery algan/ain/gan hemts on sic with output power of 9.39 w at 8 ghz
期刊论文
iSwitch采集
Solid-state electronics, 2007, 卷号: 51, 期号: 3, 页码: 428-432
作者:
Wang, X. L.
;
Cheng, T. S.
;
Ma, Z. Y.
;
Hu, Gx
;
Xiao, H. L.
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  |  
浏览/下载:18/0
  |  
提交时间:2019/05/12
Algan/gan
Hemt
Mocvd
Power device
Sic substrates
Fizeau型天文光学综合孔径望远镜的若干关键技术研究
学位论文
OAI收割
博士, 上海天文台: 中国科学院上海天文台, 2007
陈欣扬
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  |  
浏览/下载:117/12
  |  
提交时间:2011/07/01
光学综合孔径
阵列配置
U-V平面覆盖
图像复原
维纳滤波
Research on the support structure of the primary mirror of large-aperture telescope (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
Yang W.
;
Jingxu Z.
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  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
Large-aperture telescope can be used in surveying battlefield
researching landform
searching object
real-time monitoring
imaging
detecting and identifying spatial targets and so on. A large-aperture telescope for achieving high resolution power is designed to monitor spatial target and image in real time. Real-time monitoring plays an important role in military conflicts. The orbit parameter of object
quantity
geometrical shape parameter and so on can be obtained by detect spatial target. With the development of optical technology
people require larger aperture in optics-electronic (OE) system. By increasing optical aperture
the ability of collecting light and resolution power in the system can be enhanced. But the support structure of the primary mirror of large-aperture telescope will be a very difficult problem. With the increase of primary mirror aperture
the weight of the primary mirror will become larger than before. The root mean square (rms) of the primary mirror is affected by many factors
such as deadweight
deformation of heat
environment and so on. Due to the primary mirror of telescope is an important component of telescope system. By reducing the weight of primary mirror
precision of the system is ensured. During the designing phase
one can consider the supporting project of the primary mirror synthetically and analyze it roundly according to technical requirement of optical system and the effect factors. The final structural design can be reasonable. In an astronomical telescope
the surface of reflector is an important part for collecting dark radiation of celestial bodies. Its surface shape will have an effect on collecting efficiency of telescope radiant energy directly. So the rms must be very high. Optical system of large aperture
small wavelength and small focus can receive maximal light intensity. For ground-based optical astronomical telescope
the design proposed in the paper can satisfy the requirement of the possible minimum atmosphere seeing at astronomical observatory site and exert the use efficiency of the telescope adequately. So the accuracy of the traditional surface of reflector can assure that 90% of all the light energy can be focused on within the angle diameter range of the minimum atmosphere seeing
then 100% of light energy should be focused on the angle diameter range of minimum atmosphere seeing. Because the rms of mirror is very high
precise surface machining and accurate the support of mirror are very important tasks during designing and manufacturing the telescope. In the paper
various support techniques of a large-aperture telescope primary mirror are discussed and a 3.5 meter telescope system at the Starfire Optical Range (SOR) overviewed simply
which was operated by the Directed Energy Directorate of the Air Force Research Laboratory
Kirtland AFB
NM
USA from the ground-based O-E system for the observations of spatial target. We also analyze Theoretical elastic deformation of the Steward Observatory 2.3 meter mirror is analyzed.
超短激光脉冲参数测试技术研究
学位论文
OAI收割
硕士: 中国科学院上海光学精密机械研究所, 2007
作者:
郑留念
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  |  
浏览/下载:17/0
  |  
提交时间:2016/11/28
超短激光脉冲
光谱位相相干测量
位相误差
二次谐波
1-mm gate periphery AlGaN/AIN/GaN HEMTs on SiC with output power of 9.39 W at 8 GHz
期刊论文
OAI收割
solid-state electronics, 2007, 卷号: 51, 期号: 3, 页码: 428-432
Wang XL
;
Cheng TS
;
Ma ZY
;
Hu G
;
Xiao HL
;
Ran JX
;
Wang CM
;
Luo WJ
收藏
  |  
浏览/下载:95/0
  |  
提交时间:2010/03/29
AlGaN/GaN