中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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The tempo-spatial changes of soil fertility in farmland of China from the 1980s to the 2010s 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2023, 卷号: 146, 页码: 109913
作者:  
Deng, Xiaojuan;  Xu, Xinliang;  Wang, Shihao
  |  收藏  |  浏览/下载:16/0  |  提交时间:2023/05/06
Crop residue application at low rates could improve soil phosphorus cycling under long-term no-tillage management 期刊论文  OAI收割
BIOLOGY AND FERTILITY OF SOILS, 2021, 页码: 13
作者:  
Wu, Guohui;  Wei, Kai;  Chen, Zhenhua;  Jiang, Dongqi;  Xie, Hongtu
  |  收藏  |  浏览/下载:37/0  |  提交时间:2021/03/29
Pedestrian Height Estimation and 3D Reconstruction Using Pixel-resolution Mapping Method Without Special Patterns 期刊论文  OAI收割
International Journal of Automation and Computing, 2019, 卷号: 16, 期号: 4, 页码: 449-461
作者:  
Bing-Xing Wu;  Suat Utku Ay;  Ahmed Abdel-Rahim
  |  收藏  |  浏览/下载:25/0  |  提交时间:2021/02/22
Phosphorus additions have no impact on plant biomass or soil nitrogen in an alpine meadow on the Qinghai-Tibetan Plateau, China 期刊论文  OAI收割
APPLIED SOIL ECOLOGY, 2016, 卷号: 106, 页码: 18-23
作者:  
Gao, Yongheng;  Cooper, David J.;  Ma, Xingxing
收藏  |  浏览/下载:83/0  |  提交时间:2016/05/11
Application of interferometry measurement in large-scale optic-electrical theodolite (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者:  
Sun Z.
收藏  |  浏览/下载:50/0  |  提交时间:2013/03/25
Interferometry is a very important method in high accuracy measurement for optical system. This article briefly introduced the conception of interferometry and took a product of 4D Technology as an example to carry on the measurement. A large-scale optic-electrical Theodolite in assemblage was measured  and its primary mirror was 400mm in diameter. With the analysis of the results  some micro adjustments of the mechanical structure proceed  and it made the system perform better. The final results of the whole system is 1.061 in P-V value and 0.1136 in RMS value (=632.8nm)  this meets the demand of optical design and practical application. The result demonstrates that interferometry is a good way to be utilized and optimize in the procedure of assemble. (2013) Trans Tech Publications  Switzerland.  
尺寸均一、可控聚(苯乙烯-二乙烯基苯)微球的制备与应用研究 会议论文  OAI收割
2010年全国高分子材料科学与工程研讨会, 中国江西南昌, 2010-10-27
巩方玲; 马光辉
收藏  |  浏览/下载:52/0  |  提交时间:2013/09/29
Effect of soil moisture content and phosphorus application on phosphorus nutrition of rice cultivated in different water regime systems 期刊论文  iSwitch采集
JOURNAL OF PLANT NUTRITION, 2004, 卷号: 27, 期号: 12, 页码: 2259-2272
作者:  
He, YQ;  Shen, QR;  Kong, HM;  Xiong, YS;  Wang, XX
收藏  |  浏览/下载:41/0  |  提交时间:2019/10/10