中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
国家天文台 [2]
长春光学精密机械与物... [1]
紫金山天文台 [1]
采集方式
OAI收割 [4]
内容类型
期刊论文 [3]
会议论文 [1]
发表日期
2011 [1]
2007 [1]
2006 [1]
2001 [1]
学科主题
Astronomy ... [1]
筛选
浏览/检索结果:
共4条,第1-4条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
A Fractal Denoising Method for Astronomical Spectral Signal
期刊论文
OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 卷号: 31, 期号: 12, 页码: 3399-3402
作者:
Han Jin-shu
;
Luo A-li
;
Zhao Yong-heng
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/04/20
Astronomical spectra
Fractal
Denoising
Equivalent width
Calibrating oxygen abundances for star-forming galaxies
期刊论文
OAI收割
ADVANCES IN SPACE RESEARCH, 2007, 卷号: 40, 期号: 5, 页码: 620-624
作者:
Liang, Y. C.
;
Yin, S. Y.
;
Hammer, F.
;
Deng, L. C.
;
Flores, H.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2017/03/20
galaxies
abundances
calibration
SDSS
emission-line ratios
equivalent width
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.
A spectral study of the Be/X-ray binary LSI+61 degrees 303
期刊论文
OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2001, 卷号: 25, 期号: 2, 页码: 181-186
作者:
Liu, QZ
;
Hang, HR
;
Zhu, ZX
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/01/31
Be/X-ray binary
emission line
equivalent width
accretion disk