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CAS IR Grid
机构
地理科学与资源研究所 [2]
长春光学精密机械与物... [2]
化学研究所 [1]
昆明动物研究所 [1]
采集方式
OAI收割 [6]
内容类型
期刊论文 [4]
会议论文 [2]
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2020 [2]
2012 [1]
2010 [1]
2002 [1]
2000 [1]
学科主题
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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
Inner Mongolia
normalized difference vegetation index (NDVI)
interannual variability
coefficient of variation
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
Inner Mongolia
normalized difference vegetation index (NDVI)
interannual variability
coefficient of variation
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
Saurogobio
New subspecies
Coefficient of difference
Key
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
Asymmetrically Substituted Phthalocyanines
Second Non-linear Optical Coefficient
Charge Transfer
Dipolemoment
Energy Difference Of Frontier Orbital