中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Observed Changes of Rain-Season Precipitation in China from 1960 to 2018 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2021, 卷号: 18, 期号: 19
作者:  
Zhang, Yanyu;  Zang, Shuying;  Shen, Xiangjin;  Fan, Gaohua
  |  收藏  |  浏览/下载:9/0  |  提交时间:2023/02/24
Investigation the Robustness of Standard Classification Methods for Defining Urban Heat Islands 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2021, 卷号: 14, 页码: 11386-11394
作者:  
Lu, Yingshuang;  He, Tong;  Xu, Xinliang;  Qiao, Zhi
  |  收藏  |  浏览/下载:30/0  |  提交时间:2022/09/21
Spatiotemporal assessment of marine environmental monitoring programme based on DIN concentration in the Yangtze River estuary and its adjacent sea 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 卷号: 707, 页码: 8
作者:  
Fan, Haimei;  Wang, Jiaxin;  Hu, Maogui;  Li, Zhien;  Jiang, Xiaoshan
  |  收藏  |  浏览/下载:64/0  |  提交时间:2020/05/19
Spatiotemporal assessment of marine environmental monitoring programme based on DIN concentration in the Yangtze River estuary and its adjacent sea 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 卷号: 707, 页码: 8
作者:  
Fan, Haimei;  Wang, Jiaxin;  Hu, Maogui;  Li, Zhien;  Jiang, Xiaoshan
  |  收藏  |  浏览/下载:18/0  |  提交时间:2020/05/19
不同地形分级下的尉犁县土地覆被变化特征分析/Land Cover Changes on Different Topographic Grades in Yuli County[J] 期刊论文  OAI收割
水土保持通报, 2011, 卷号: 31, 期号: 4, 页码: 57-61
作者:  
王前锋;  周可法;  孙莉;  秦艳芳;  李广宇
  |  收藏  |  浏览/下载:25/0  |  提交时间:2017/12/29
Space optics remote sensor focusing components mechanics characteristic analysis based on FEM (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Wang B.;  Ren J.-Y.;  Wang B.
收藏  |  浏览/下载:153/0  |  提交时间:2013/03/25
Space optical remote sensor is very important in many fields of science and military significance. It is widely applied. Space optical remote sensor design and manufacturing require precision and stability. Focusing mechanics is an important component of remote sensors. Focusing mechanics can guarantee the stability of the entire mechanics focusing accuracy  therefore the stability of research focusing mechanics is very important. In order to guarantee the space optics remote sensor focusing mechanics the stability  takes steps the space optics remote sensor focusing organization mechanics characteristic analysis from the classics contact theory. This article uses international general non-linear finite element analysis software ABAQUS to carry on mechanics characteristic analysis to the space optics remote sensor focusing mechanics. First acts according to the focusing mechanics unique feature  carries on the finite element to the structural model the grid division  the material attribute disposition and the boundary condition indeed grades. Then establishment contact non-linear finite element model  and to focusing organization finite element model infliction unit action. Like this contacts the result and the equivalent static analysis result which the nonlinear analysis obtains carries on the contrast and the analysis. This article last count result modality is 90HZ  satisfies the space optics remote sensor structure overall modality to request to be bigger than 50HZ.This article when carries on the dynamic analysis  extracts the structure kinetic energy and the acceleration curve. In the dynamic analysis obtained transient response analysis modality 70.5Hz  this also is bigger than 50HZ. The dynamic analysis indicated the structure dynamic stability has the distinct enhancement  has provided certain foundation for the space optics remote sensor following development work  reduced the overall system development cycle. 2009 SPIE.  
The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution 期刊论文  OAI收割
Acta Physico-Chimica Sinica, 2006, 卷号: 22, 期号: 3, 页码: 312-315
H. B. Shao; X. Y. Wang; J. M. Wang; J. B. Wang; J. Q. Zhang; C. N. Cao
收藏  |  浏览/下载:18/0  |  提交时间:2012/04/14
Influences of zinc oxide and an organic additive on the electrochemical behavior of pure aluminum in an alkaline solution 期刊论文  OAI收割
Journal of Applied Electrochemistry, 2005, 卷号: 35, 期号: 2, 页码: 213-216
X. Y. Wang; J. M. Wang; H. B. Shao; J. Q. Zhang; C. N. Cao
收藏  |  浏览/下载:34/0  |  提交时间:2012/04/14