中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共7条,第1-7条 帮助

条数/页: 排序方式:
Prediction of Root-Zone Soil Moisture and Evapotranspiration in Cropland Using HYDRUS-1D Model with Different Soil Hydrodynamic Parameter Schemes 期刊论文  OAI收割
WATER, 2025, 卷号: 17, 期号: 5, 页码: 730
作者:  
Liao, Qian-Yu;  Leng, Pei;  Li, Zhao-Liang;  Labed, Jelila
  |  收藏  |  浏览/下载:8/0  |  提交时间:2025/04/21
High Below-Ground Productivity Allocation of Alpine Grasslands on the Northern Tibet 期刊论文  OAI收割
PLANTS-BASEL, 2019, 卷号: 8, 期号: 12, 页码: 17
作者:  
Niu, Ben;  Zeng, Chaoxu;  Zhang, Xianzhou;  He, Yongtao;  Shi, Peili
  |  收藏  |  浏览/下载:66/0  |  提交时间:2020/05/19
High Below-Ground Productivity Allocation of Alpine Grasslands on the Northern Tibet 期刊论文  OAI收割
PLANTS-BASEL, 2019, 卷号: 8, 期号: 12, 页码: 17
作者:  
Niu, Ben;  Zeng, Chaoxu;  Zhang, Xianzhou;  He, Yongtao;  Shi, Peili
  |  收藏  |  浏览/下载:16/0  |  提交时间:2020/05/19
Longitudinal control law design and simulation of fixed-wing UAV (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
作者:  
Duan Z.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Impacts of Wenchuan Earthquake-induced landslides on soil physical properties and tree growth 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2012, 卷号: 15, 期号: 1, 页码: 263-270
作者:  
Cheng, Song;  Yang, Gang;  Yu, Hui;  Li, Jiyue;  Zhang, Li
收藏  |  浏览/下载:25/0  |  提交时间:2015/06/23
Design and tolerance analysis of compensator for high order aspheric surface testing (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems, October 19, 2009 - October 22, 2009, Shanghai, China
作者:  
Chen X.;  Liu W.;  Chen X.;  Chen X.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
High accuracy is required in surface testing of 90nm nodal point lithography projecting lens. By comparing various aspheric surface testing methods  the structure layout of the compensator is a meniscus positive lens combined with a Plano-convex positive lens. The design results indicate that: primary and high order aberrations are balanced well  we adopt Offner null compensator to test the aspheric surface in the point diffraction interferometer at last. In this paper  MTF exceeds diffraction limit  an Offner compensator is presented on the base of the third order aberration theory to test concave aspheric surface  root-mean-square (RMS) of wave front error /167. The F-number of the system can achieve F/1.64. By the analysis of the process of aspheric surface testing with the designed system  the optical construction parameters of which is determined by introducing equal-quantities spherical aberration to compensate all orders of aspheric coefficients. The field of view of the system is 0.02  a loosen distribution of the tolerance was presented based on the accuracy of measuring apparatus. 2009 SPIE.  
Effect of lanthanum on rice growth and physiological parameters with split-root nutrient solution culture 期刊论文  iSwitch采集
JOURNAL OF RARE EARTHS, 2003, 卷号: 21, 期号: 1, 页码: 86-91
作者:  
Xie, ZB;  Zhu, JG;  Chu, HY;  Zhang, YL;  Gao, R
收藏  |  浏览/下载:18/0  |  提交时间:2019/10/10