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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共24条,第1-10条 帮助

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Precise measurements the broadening characteristics and parameters of methane near-infrared absorption spectrum at high pressure 期刊论文  OAI收割
JOURNAL OF INFRARED AND MILLIMETER WAVES, 2020, 卷号: 39
作者:  
He Ying;  Zhang Yu-Jun;  You Kun;  Fan Bo-Qiang;  Li Meng-Qi
  |  收藏  |  浏览/下载:82/0  |  提交时间:2021/03/15
Study on the Spectrum Characteristics of Dye Doped Liquid Crystal Laser 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 卷号: 38, 期号: 10, 页码: 3273-3277
作者:  
Liu Yong-gang;  Liu Yan;  Dong Gang-song;  Li Wen-cui
  |  收藏  |  浏览/下载:35/0  |  提交时间:2019/08/21
Numerical and experimental investigation on the stability of slopes threatened by earthquakes 期刊论文  OAI收割
ARABIAN JOURNAL OF GEOSCIENCES, 2015, 卷号: 8, 期号: 7, 页码: 4353-4364
作者:  
Jiao, Yu-Yong;  Tian, Hu-Nan;  Wu, Huo-Zhen;  Li, Hai-Bo;  Tang, Hui-Ming
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/06/05
Characteristics of coal re-oxidation based on microstructural and spectral observation 期刊论文  OAI收割
International Journal of Mining Science and Technology, 2015, 卷号: 25, 期号: 5, 页码: 749-754
作者:  
Liang Yuntao;  Tian Fuchao;  Luo Haizhu;  Tang Hui
  |  收藏  |  浏览/下载:36/0  |  提交时间:2021/02/03
Analysis of energy characteristics in the process of freak wave generation 期刊论文  OAI收割
china ocean engineering, 2014, 卷号: 28, 期号: 2, 页码: 193-205
作者:  
Hu Jin-peng;  Zhang Yun-qiu
收藏  |  浏览/下载:22/0  |  提交时间:2016/11/03
核级阀门驱动装置抗震试验研究 期刊论文  OAI收割
机械设计与制造, 2014, 期号: 8, 页码: 121-123
作者:  
李涛
收藏  |  浏览/下载:29/0  |  提交时间:2014/11/03
SAR Image Coregistration Using Fringe Definition Detection 期刊论文  OAI收割
Journal of Mountain Science, 2013, 卷号: 10, 期号: 5, 页码: 790-800
YANG Ying-hui; CHEN Qiang; LIU Guo-xiang; Li Zhi-lin; CHENG Hai-qin; Liu Li-yao
收藏  |  浏览/下载:35/0  |  提交时间:2013/09/23
Studies on Preparation of Meso-Hangjin2(#) Clay and Its Characteristic of Spectrum 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 卷号: 33, 期号: 4, 页码: 1087-1091
作者:  
Erihemu;  Sagala;  Zhang Yu;  Zhaorigetu
  |  收藏  |  浏览/下载:23/0  |  提交时间:2019/04/09
Response spectrum 0.9-2.65 m of In0.82Ga0.18As detectors by two-step growth technique (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Material Sciences and Manufacturing Technology, ICMSMT 2012, October 5, 2012 - October 6, 2012, Dalian, China
作者:  
Zhang T.
收藏  |  浏览/下载:43/0  |  提交时间:2013/03/25
InP/In0.82Ga0.18As/InP heterostructure used for infrared detector were grown on (100) S-doped InP substrates using two-step growth technique by low temperature metal-organic chemical vapor deposition. The growth was performed using TMIn  TMGa  AsH3  and PH3 as growth precursors in a horizontal reactor. The substrates on a graphite susceptor were heated by inductively coupling RF power  their temperatures were detected by a thermocouple  and the reactor pressure was kept at 10000 Pa. The growth structure of detector included In0.82Ga0.18As buffer with the thickness of 100 nm  In0.82Ga0.18As absorption layer with the thickness of 2.8 m  and the InP cap with the thickness of 0.8 m. The planar type of p-i-n detector was fabricated by Zn diffusion. The properties of In0.82Ga0.18As detector were studied  the curves of the I-V characteristics  the range of response spectrum  and the detectivity (D*) were obtained. (2013) Trans Tech Publications  Switzerland.  
The angular velocity estimation principal of -- filter based on high sampling rate (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  
Zhang Y.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
In order to get angular velocity of stabilization servo mechanism from angular position sensors  -- filter and its angular velocity transfer function were predigested. Combing with optimum parameters  -- filter based on high sampling rate was established  the effect of and sample rate on filter nature frequency were evaluated. According to the requirements of stabilization platform  the principle of steady and transient tracking filter differential were proved. With the hypothesis of constant acceleration  the frequency characteristics of angular velocity transfer function were analyzed  three-dimensional Kalman filter was simplified  and the filter parameters were designed. The results show that when the spectrum of input signal was lower than 6rad/s  parameters was 0.02  and sampling period were 0.08ms and 0.1ms respectively  the filter can realize differential exactly  when the spectrum was 9rad/s  the precision was no less than 1.1%  the phase leading of angular position was no less than 70  the natural frequency should be higher than the cut-off frequency of stabilization platform was two or three times. In the engineering of electro-optical stabilization servo mechanism  -- filter has properties of tracking differential  and reached the requirement of platform angular velocity estimation. Also it is one of the effective methods to get angular velocity from angular position sensors. 2011 IEEE.