机构

• 地理科学与资源研究所 [3]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [2]
• SCI/SSCI论文 [1]
• 会议论文 [1]

发表日期

• 2020 [2]
• 2013 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Ground observed climatology and trend in snow cover phenology across China with consideration of snow-free breaks 期刊论文  OAI收割 CLIMATE DYNAMICS, 2020, 页码: 21 作者:  Ma, Ning;  Yu, Kunlun;  Zhang, Yinsheng;  Zhai, Jianqing;  Zhang, Yongqiang   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/03/18 Snow cover phenology  Snow-free breaks  The number of snow cover days  Snow depth  Station measurements  Altitudinal dependence   Ground observed climatology and trend in snow cover phenology across China with consideration of snow-free breaks 期刊论文  OAI收割 CLIMATE DYNAMICS, 2020, 页码: 21 作者:  Ma, Ning;  Yu, Kunlun;  Zhang, Yinsheng;  Zhai, Jianqing;  Zhang, Yongqiang   |  收藏  |  浏览/下载：22/0  |  提交时间：2021/03/18 Snow cover phenology  Snow-free breaks  The number of snow cover days  Snow depth  Station measurements  Altitudinal dependence   Crustal and uppermost mantle S-wave velocity structure beneath the Japanese islands from seismic ambient noise tomography SCI/SSCI论文  OAI收割 2013 Guo Z.; Gao X.; Shi H.; Wang W. M. 收藏  |  浏览/下载：41/0  |  提交时间：2014/12/24 Interferometry  Surface waves and free oscillations  Seismic tomography  Crustal structure  receiver function-analysis  subduction zone  southwest japan  arc  magmatism  dispersion measurements  2-station analysis  array  tomography  deep-structure  surface-waves  fore-arc   3R intersection target positioning in real time based on distance (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Nengwei W.; Juan C.; Jian C. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 The positioning error based on angle  angle-distance or single station positioning increases with the distance increasing. 3R target positioning based on distance can obtain the high precision measurements in long distance. Here we give the 3R model for the intersection positioning  provide the two necessary conditions for getting the optimum intersection point. The experimental results show that the intersection precision based on angle is over 2m and will degrade greatly with the increasing of distance while the one based on 3R model will improve and the error decrease gradually. That the precision of the distance measurement is about 1m means the 3R model is better than the angle positioning  which can compensate the drawbacks of the angle positioning at short distance. 2010 IEEE.