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Chinese Academy of Sciences Institutional Repositories Grid
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Understanding Interlayer Coupling in TMD-hBN Heterostructure by Raman Spectroscopy 期刊论文  OAI收割
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2018, 卷号: 65, 期号: 10, 页码: 4059-4067
作者:  
Ding, L;  Ukhtary, MS;  Chubarov, M;  Choudhury, TH;  Zhang, F
  |  收藏  |  浏览/下载:44/0  |  提交时间:2018/12/25
Understanding Interlayer Coupling in TMD-hBN Heterostructure by Raman Spectroscopy 期刊论文  OAI收割
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2018, 卷号: 65, 期号: 10, 页码: 4059-4067
作者:  
Ding, Li;  Ukhtary, Muhammad Shoufie;  Chubarov, Mikhail;  Choudhury, Tanushree H.;  Zhang, Fu
  |  收藏  |  浏览/下载:16/0  |  提交时间:2021/02/02
A novel miniaturized polarization-independent fiber-optic interferometer 期刊论文  OAI收割
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2018, 卷号: 12, 期号: 1-2, 页码: 13-17
作者:  
Ye, You-Xiang;  Mei, Hai-Ping;  Zhou, Sheng-Hua;  Zhang, Da-Wei;  Hong, Rui-Jin
  |  收藏  |  浏览/下载:18/0  |  提交时间:2019/08/23
Readout of the vibration of nanowires using fibre optics: Combining light scattering and the interference effect 期刊论文  OAI收割
PHYSICS LETTERS A, 2017, 卷号: 381, 期号: 34, 页码: 2837-2840
作者:  
Fu, Chenghua
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/08/16
结构振动对大型激波风洞气动力测量的干扰 期刊论文  OAI收割
力学学报, 2016, 卷号: 48, 期号: 1, 页码: 102-110
作者:  
孟宝清;  韩桂来;  姜宗林
收藏  |  浏览/下载:39/0  |  提交时间:2016/03/01
Influencing Factor Analysis of Interference Vibration Reduction of Millisecond Blasting 期刊论文  OAI收割
DISASTER ADVANCES, 2012, 卷号: 5, 期号: 4, 页码: 494-501
作者:  
Yan Yongfeng;  Li Haibo;  Zhang Qiuhua;  Chen Shihai;  Lv Yanxin
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/06/05
Dynamic coupling analysis and modeling for stabilized platform of rolling-pitching seeker (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  
Liu H.;  Liu H.;  Liu H.
收藏  |  浏览/下载:12/0  |  提交时间:2013/03/25
Missile's attitude change will be delivered to visual axis through stabilized platform during maneuvering flight  and the missile vibration will be an interference source to visual axis stabilization. In order to solve this problem  the coupling relationship between missile attitude and visual axis is obtained by Coordinate transformation. When the seeker stably tracks a target  the angular velocity of visual axis in inertial space is zero  so the relative angular velocity of roll axis and pitch axis can be derived for servo control. According to Oura dynamics equation  the dynamic models of roll axis and pitch axis were established and kinetic equations of two axises were obtained. The dynamic models can provide theoretical basis to developing research of servo control system and structural optimization design of stabilized platform. Finally  some measures could reduce the dynamic coupling between the framework was given. 2011 IEEE.  
Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory  then obtained the displacement with two times trapezoidal integration. For the side rotation  the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image  and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation  the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm  and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration  the results show that the image quality had declined  and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.  
Phase characteristics of laser beam in fibers (EI CONFERENCE) 会议论文  OAI收割
5th International Workshop on Adaptive Optics for Industry and Medicine, August 29, 2005 - September 1, 2005, Beijing, China
作者:  
Wang L.;  Wang L.;  Liu J.;  Liu J.;  Liu J.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The phase changing rates1 of laser beam in single mode polarization maintaining fiber (PMF)  Yb-doped rectangular inner cladding dual-clad fiber (DCF) and Yb-doped large-mode-area dual-clad fiber (LMF) are investigated by means of interference under situations with different exterior disturbance  for situations that all the fibers are used as transmission medium only  as well as amplifying medium with the last two. In this paper  phase fluctuation characteristics of the beam transmitted through the fibers with no amplification are presented. The results show that the phase fluctuation frequencies of the laser beam transmitted through these three kinds of fibers are mainly in the range of 100-200Hz  100-300Hz and 80-400Hz respectively in normal laboratory environment. The phase fluctuation frequencies of the laser beam transmitted through the DCF  in cases of when the environment temperature is changing  a constant pressure is applied to the fiber and when vibration is applied  are mainly in the range of 100-600Hz  100Hz-300Hz and 100-500Hz respectively. In the same cases  for the LMF  the phase fluctuation frequencies are mainly in the range of 150-600Hz  100-400Hz and 100-1000Hz  respectively. It indicates that for realizing phase stabilization  the bandwidth of any potential phase control2 system has to be in the range of a few kilohertz.