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CAS IR Grid
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长春光学精密机械与物... [1]
上海应用物理研究所 [1]
长春应用化学研究所 [1]
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OAI收割 [3]
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期刊论文 [2]
会议论文 [1]
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2017 [1]
2014 [1]
2011 [1]
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Investigating the influence of F- on U4+ in molten LiCl-KCl-UF4 system and electro-deposition of U
期刊论文
OAI收割
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2017, 卷号: 3, 页码: 485-
作者:
Zhu, TJ
;
Huang, W
;
Zheng, HY
;
She, CF
;
Jiang, F
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2017/12/08
F- Influence
Uranium Ion
Licl-kcl Molten Salt
Spent Fuel
Synthesis, characterization, and ethylene polymerization behaviors of late-transition metal complexes coordinated with chlorinated bis(arylimino)pyridine ligand
期刊论文
OAI收割
polymer, 2014, 卷号: 55, 期号: 18, 页码: 4611-4618
Liu, Heng
;
Wang, Feng
;
Liu, Li
;
Jai,Xiang-Yu
;
Zheng,Wenjie
;
Guo,Jun
;
Zhang,Chun-Yu
;
Bai,Chen-Xi
;
Hu,Yan-Ming
;
Zhang,Xue-Quan
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2015/10/20
A series of late-transition metal complexes supported with chlorinated bis(arylimino)pyridine ligands [2
Ar = 2
Ar = 2
Ar = 2
Ar = 4-Cl-2
Ar = 4-Br-2
6-(ArN=CCl)(2)C5H3N]MtCl(2) (Ar = 2
6-(Pr2C6H3)-Pr-i
6-Et2C6H3
6-Me2C6H3
6-Me2C6H2
6-Me2C6H2
4
Mt = Fe (1b)
Mt = Co (1c)
Mt = Fe (1d)
Mt = Fe (1e)
Mt = Fe (1f)
6-Me3C6H2
Co (2b)
Ni (3c)
Co (2d)
Co (2e)
Co (2f)) were synthesized. At the presence of methylaluminoxane (MAO)
Mt = Fe (1a)
Fe(II)- and Co(II)- based complexes were highly active towards ethylene polymerization
Co (2a)
affording polymers with bimodal and unimodal molar. mass distributions
Ni (3a)
respectively
while the Ni(II)-based complexes gave no polymer products. Moreover
the obtained polyethylenes were predominately saturated and vinyl-terminated for Fe(II)- and Co(II)-based complexes
respectively. Changing the ligand environment
polymerization parameters also posed a great influence on the catalytic activities and the properties of the resulting polymers. (C) 2014 Elsevier Ltd. All rights reserved.
Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:
Sun Z.
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浏览/下载:92/0
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提交时间:2013/03/25
Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper
some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system
which is composed of the drift adjusting mechanical frame
the ultrasonic motor
the driver of Ultrasonic Motor
the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor
photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system
was introduced the source of the disturbance
and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space
simple configuration
high position control precision
fine repeatability
self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.