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7条,第1-7条 帮助

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Spring recharge and groundwater flow patterns in flysch aquifer in the Polonina Wetlinska Massif in the Carpathian Mountains 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2021, 卷号: 18, 期号: 4, 页码: 819-833
作者:  
Mostowik, Karolina;  Krzyczman, Damian;  Placzkowska, Eliza;  Rzonca, Bartlomiej;  Siwek, Janusz
  |  收藏  |  浏览/下载:13/0  |  提交时间:2023/08/23
Geographical pattern in first bloom variability and its relation to temperature sensitivity in the USA and China SCI/SSCI论文  OAI收割
2015
作者:  
Wang H. J.;  Ge, Q. S.;  Dai, J. H.;  Tao, Z. X.
收藏  |  浏览/下载:40/0  |  提交时间:2015/12/09
Differential responses of trees to temperature variation during the chilling and forcing phases SCI/SSCI论文  OAI收割
2013
Luedeling E.; Guo L.; Dai J. H.; Leslie C.; Blanke M. M.
收藏  |  浏览/下载:39/0  |  提交时间:2014/12/24
Is the change of winter wheat yield under warming caused by shortened reproductive period? SCI/SSCI论文  OAI收割
2012
Hou R. X.; Ouyang Z.; Li Y. S.; Wilson G. V.; Li H. X.
收藏  |  浏览/下载:41/0  |  提交时间:2014/12/25
Asynchrony of spring phytoplankton response to temperature driver within a spatial heterogeneity bay of Three-Gorges Reservoir, China 期刊论文  OAI收割
LIMNOLOGICA, 2011, 卷号: 41, 期号: 3, 页码: 174-180
作者:  
Xu, Yaoyang;  Cai, Qinghua;  Ye, Lin;  Shao, Meiling;  Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
  |  收藏  |  浏览/下载:27/0  |  提交时间:2011/11/09
Micro-motion exposure method based on PZT piezoelectric ceramics (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:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:102/0  |  提交时间:2013/03/25
There mainly is laser digital photofinishing technique and digital photofinishing technique based on LCD consisting of TFT and LCOS in the digital photofinishing field at the present time. The former have a good many merit such as wide color gamut  high processing rate  large output size and high brightness  but his cost is very high  his maintain technique being comparatively complex  that result in difficult use for people. The utilization ratio of the latter is low because of lower resolution and lower aperture ratio for LCD  but the digital photofinishing based on LCD have lower cost and higher utilization ration  being suitable for people's current standard of living. Considering above mentioned problem  a micro-motion exposure method based on PZT piezoelectric ceramics used in digital image photofinishing is presented. The two-dimension micro-motion exposure system consisting of PZT piezoelectric ceramics  LCD panel  polarizing film and spring strip is designed. By means of PZT piezoelectric ceramics the LCD panel is removed about the one half of the pixel size of the LCD panel for four times from the original place  at the same time imaging system is exposed four times at the printing paper. The software is used to control the time synchronization  the exposure time and motion range of the LCD panel. The system has advantages such as shorter response time than 0.1seconds  lesser motion error than 0.01 microns  high stability and repeatability. Experimental results show that the proposed micro-motion exposure method improve the picture brightness and enlarge output size  at the meantime reducing the cost of the system. 2009 SPIE.  
Characteristics of two-way shape memory TiNi springs driven by electrical current 期刊论文  OAI收割
Materials & Design, 2004, 卷号: 25, 期号: 8, 页码: 699-703
Z. G. Wang; X. T. Zu; X. D. Feng; S. Zhu; J. W. Bao; L. M. Wang
收藏  |  浏览/下载:15/0  |  提交时间:2012/04/14