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Revealing the Fingerprint of Climate Change in Interannual NDVI Variability among Biomes in Inner Mongolia, China 期刊论文  OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 8, 页码: 17
作者:  
Guo, Linghui;  Zuo, Liyuan;  Gao, Jiangbo;  Jiang, Yuan;  Zhang, Yongling
  |  收藏  |  浏览/下载:35/0  |  提交时间:2021/03/23
Revealing the Fingerprint of Climate Change in Interannual NDVI Variability among Biomes in Inner Mongolia, China 期刊论文  OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 8, 页码: 17
作者:  
Guo, Linghui;  Zuo, Liyuan;  Gao, Jiangbo;  Jiang, Yuan;  Zhang, Yongling
  |  收藏  |  浏览/下载:28/0  |  提交时间:2021/03/23
Study on the difference between turfy soil and normal peat soil in China (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011, October 21, 2011 - October 23, 2011, Shanghai, China
作者:  
Nie L.
收藏  |  浏览/下载:49/0  |  提交时间:2013/03/25
As the special soil  turfy soil and peat soil in China contained some similar properties with high void ratio  high water content  high organic content  etc. But turfy soil also had properties which difference from peat soil. In this paper  based on the formation of the cause and geological environment and geomorphologic characteristics of geological in the quaternary  took the typical and widespread turfy soil and peat soil regions for example  systematically discussed the material composition and macroscopic and microcosmic structural features  put further research on the physical chemistry mechanical characteristics. Then the come to the conclusion that the essential reason for difference between turfy soil and peat soil were decomposition degree and organic content. The result that worse engineering properties such as higher the moisture content  porosity  compressibility  internal cohesion and the lower specific weight  consolidation coefficient and permeability were due to the lower decomposition degree and higher organic content of turfy soil than peat soil. It can provide reference to the practical projects of turfy soil to distinguish peat soil according to this characteristic. (2012) Trans Tech Publications.  
Chirp estimation of PZT for integrating-bucket method (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang J.;  Liu W.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
The nonlinear response of the PZT for the integrating bucket method is studied by our proposed method: discrete chirp Fourier transform (DCFT) and maximum likelihood estimation (MLE) techniques for the integrating bucket method. Based on the signal processing theory  the intensity obtained from CCD is processed by the DCFT and thus nonlinear response and chirp coefficient of the PZT can be coarsely estimated. This is followed by the MLE method  in which an iterative optimization process is complemented for accurately estimating the nonlinear response and chirp coefficient of the PZT. One key advantage of the proposed method is that not only the nonlinear response and chirp coefficient of the PZT can be acquired  but also initial phase acquired. Our method is tested by simulating conditions under which a certain magnitude of nonlinearity is assumed. Nonlinear response attained by the DCFT is compared to that attained by the MLE  and a difference between the actual nonlinear response of the PZT and our accurate estimation by the proposed method is revealed. Several factors that will have influence on the nonlinear response of the PZT are discussed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Description of a New Subspecies of the Genus Saurogobio Bleeker (1870) 期刊论文  OAI收割
动物学研究, 2002, 卷号: 23, 期号: 4, 页码: 306~ 310
作者:  
Dai YG;  Yang JX[*]
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/06
Theoretical study on the electronic structures and non-linear optical properties of phthalocyanine and its asymmetrically substituted derivatives 期刊论文  OAI收割
ACTA CHIMICA SINICA, 2000, 卷号: 58, 期号: 8, 页码: 981-987
作者:  
Zhang, TL;  Yan, JM
  |  收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09