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CAS IR Grid
机构
长春光学精密机械与物... [3]
工程热物理研究所 [3]
中国科学院大学 [2]
力学研究所 [1]
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OAI收割 [7]
iSwitch采集 [2]
内容类型
期刊论文 [5]
会议论文 [4]
发表日期
2012 [3]
2009 [2]
2007 [1]
2006 [2]
2000 [1]
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Numerical investigation of centerline curvature effects on a compact S-shaped intake
期刊论文
OAI收割
JOURNAL OF THERMAL SCIENCE, 2012, 卷号: 21, 期号: 5, 页码: 413-419
作者:
Huang, Enliang
;
Zhao, Shengfeng
;
Lei, Zhijun
;
Kang, Jianxiong
;
Lu, Xingen
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2015/11/03
S-shaped Intake
Secondary Flow
Centerline Curvature
Separation bubble
Counter-rotating Vortices
Numerical Investigation of Centerline Curvature Effects on a Compact S-shaped Intake
期刊论文
OAI收割
JOURNAL OF THERMAL SCIENCE, 2012, 卷号: 21, 页码: 413,419
Enliang Huangl 2
;
Shengfeng Zhao1
;
Zhijun Leil
;
Jianxiong Kangl
;
Xingen Lul
;
Junqiang Zhul
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/01/31
S-shaped Intake
Secondary Flow
Centerline Curvature
Separation bubble
Counter-rotating Vortices
Numerical Investigation of Centerline Curvature Effects on a Compact S-shaped Intake
期刊论文
OAI收割
JOURNAL OF THERMAL SCIENCE, 2012, 卷号: 21, 页码: 413,419
作者:
Enliang Huangl 2
;
Shengfeng Zhao1
;
Zhijun Leil
;
Jianxiong Kangl
;
Xingen Lul
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/01/31
S-shaped Intake
Secondary Flow
Centerline Curvature
Separation Bubble
Counter-rotating Vortices
Alignment of off-axis asphere and compensator with four poles (EI CONFERENCE)
会议论文
OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:
Li J.
;
Chen Y.
收藏
  |  
浏览/下载:58/0
  |  
提交时间:2013/03/25
Aspheres are utilized widely thanks to the development of optical design
manufacture and testing. Compensators are usually necessary when aspheres are under test. The alignment of aspheres and their compensators is a risk because it's tough to check whether the compensators work in right way. A new method of alignment with four poles is put forward in this paper. Optical interval error can be tight while it is quite important due to direct influence on central curvature
conic constant and high order coefficients of aspherical surface. A modified on-axis Foucault apparatus is set up since it makes the optical axis visible and helps to control the error of off-axis amount. Some small holes are drilled in the metallic cell of the compensator so that the ends of poles can be stably relied on in order to increase operational repeatability. The method has been carried out practically and it matches the measurement result given by a set of theodolites. 2009 SPIE.
Influence of the TDI CCD camera takes pictures when high resolution satellite lateral swaying (EI CONFERENCE)
会议论文
OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
作者:
Zhang L.
;
Zhang L.
;
Sun Z.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
When the satellite was swinging and taking lateral imaging
the TDI CCD pixel photovoltaic charge purses transferred velocity not matched with the image motion velocity. According to the requirement of high-resolution satellite which was taking lateral imaging at a low orbit
the factors that bring about the unmatched phenomenon were analysed
inclusive of the Earth's rotation
the Earth curvature
satellite attitude change
measurement error and the installation error
etc. Image motion errors caused by various factors were analysed and solved
and the different characters of image motion errors were synthesized. Finally
the total errors on the impact of imaging system MTF was analyzed. 2009 IEEE.
Finsler conformal transformations and the curvature invariances
期刊论文
iSwitch采集
Publicationes mathematicae-debrecen, 2007, 卷号: 70, 期号: 1-2, 页码: 221-231
作者:
Basco, Sandor
;
Cheng, Xinyue
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2019/05/10
Conformal transformation
Riemann curvature
Ricci curvature
Landsberg curvature
S-curvature
Projectively flat finsler metrics with almost isotropic s-curvature
期刊论文
iSwitch采集
Acta mathematica scientia, 2006, 卷号: 26, 期号: 2, 页码: 307-313
作者:
Cheng, XY
;
Shen, ZM
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2019/05/10
Projectively flat finsler metric
S-curvature
The flag curvature
Randers metric
Effect of compliant interface on the curvature and stress of micron-size film-substrate composite structure
会议论文
OAI收割
2006 IEEE International Conference on Robotics and Biomimetics, ROBIO 2006, Kunming, China, December 17, 2006 - December 20, 2006
作者:
Liu Y
;
Zhang Y(张吟)
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2017/06/01
(abiotic and biotic) stress
Curvature (sori)
Error sources
General (CO)
interface layers
Interfacial slips
international conferences
Micron sizes
Stoney's formula
stress states
stress transfer
Recent progress on asphere manufacturing and testing at CIOM (EI CONFERENCE)
会议论文
OAI收割
Advanced Optical Manufacturing and Testing Technology 2000, November 1, 2000 - November 3, 2000, Chengdu, China
作者:
Zhang X.
;
Yu J.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
The manufacturing procedure of a 500 mm in diameter
f/2 hyperbolic primary mirror based on Computer-Controlled Polishing is introduced in detail. The mirror was finally polished to the shape accuracy of 13 nm rms and the surface roughness of 2 nm Ra. Testing methods and data analysis for different stages ranging from grinding to polishing are discussed. Some critical factors affecting the efficiency and accuracy of the grinding/polishing procedure are summarized. In addition
the preliminary work to make large off-axis asphere mirrors is presented. The difficulties in polishing and testing for both circular aperture and rectangular aperture mirrors are previewed
and a possible solution is given. To control the geometrical parameters such as radius of curvature and conic constant
a new profiler has been built
and it has proven very useful to improve the grinding efficiency. Finally
the manufacturing of small aspheres using deterministic grinding tool is also introduced. The fine grinding procedure of LOH's asphere grinding machine is presented.