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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
力学研究所 [1]
长春光学精密机械与物... [1]
上海光学精密机械研究... [1]
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OAI收割 [3]
内容类型
会议论文 [2]
期刊论文 [1]
发表日期
2010 [1]
2008 [2]
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A design on a control method of a new type of focal plane shutter (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Xue L.
;
Ming L.
;
Zheng L.-N.
;
Zhou J.-F.
;
Zhang H.-W.
;
Zhang J.-C.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
In order to ensure appropriate exposure time
and no exposure while electric charge is transferring after taking a photograph
it is necessary to have the shutter mechanism cooperate with CCD for area CCD aerial cameras. The ground object illumination has a wide range which is from 4000Lx to 100000Lx
so a shutter which is high efficient and a continuous stepless adjustment are also required. This paper introduces the fundamental principle
structural design and control procedure about this new focal plane shutter. Under the control of DSP
the velocity of shutter curtain governed by the shutter motor can be not only precisely controlled
but also the durability and the reliability are increased. The experiment results have shown that this new shutter has the higher stability of movement
long life span with more than 105 operating times
a wide range of exposure time from1/ 50s to 1/ 320s(depending on the slit width)and the exposure error is less than 10%. With the CCD gain adjustment
the performance of this shutter is fully satisfied with the requirements of area CCD aerial cameras. 2010 IEEE.
Quantifying rupture force and bond lifetime of P-selectin-PSGL-1 interactions at lower forces
会议论文
OAI收割
Advances in Heterogeneous Material Mechanics 2008 - 2nd International Conference on Heterogeneous Material Mechanics, ICHMM 2008, Huangshan, China, June 3, 2008 - June 8, 2008
作者:
Zhang Y(章燕)
;
Sun GY(孙淦云)
;
Huo B(霍波)
;
Long M(龙勉)
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2017/06/01
Applied forces
Atomic forces
Biological processes
Bond dissociations
Bond lifetimes
Bond ruptures
External forces
Flow chambers
Glycoprotein ligands
Life-times
Ligand interactions
Loading rates
Optical traps
Physiological flows
Rupture forces
Selectin
Spring constants
Thrombosis formations
To many
Tumor metastases
Broadband near-infrared emission in Er
3+
-Tm
3+
codoped chalcohalide glasses
期刊论文
OAI收割
opt. lett., 2008, 卷号: 33, 期号: 20, 页码: 2293, 2295
Xu Yinsheng
;
陈丹平
;
Wang Wel
;
Zhang Qiang
;
曾惠丹
;
Shen Ce
;
Chen Guorong
收藏
  |  
浏览/下载:1336/213
  |  
提交时间:2009/09/24
Chalcohalide glasses
Co doped
Excitation sources
First orders
Fluorescence decays
Infrared emissions
Life-times
Luminescence mechanisms
Transfer processes