机构

• 青藏高原研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2016 [1]
• 2011 [1]

学科主题

• 地理学::自然地理学 [1]

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Twentieth-century warming preserved in a Geladaindong mountain ice core, central Tibetan Plateau 期刊论文  OAI收割 ANNALS OF GLACIOLOGY, 2016, 卷号: 57, 期号: 71, 页码: 70-80 作者:  Grigholm, B (Grigholm, Bjorn);  Zhang, YJ (Zhang, Yongjun);  Kaspari, S (Kaspari, Susan);  Morgenstern, U (Morgenstern, Uwe);  Ren, JW (Ren, Jiawen)   |  收藏  |  浏览/下载：49/0  |  提交时间：2017/11/27 North-atlantic Oscillation  Glacier Variations  Rapid Decrease  Mass-balance  Alpine Firn  Tree-rings  Climate  Record  Precipitation  South   The technique of camera scan control based on current loop control (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China 作者:  Liu Z. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 As the crucial structure of aerial camera  sca reflector is always requested with high performance of control precision  stable running and rapid responding. The paper introduces a kind of method about current loop control system which is based on position and velocity dual-closed loop control system. This method improves effectively the performance of velocity closed loop control system and amplifies the gain of low frequency. The results show applying these control methods  the influence of the torque ripple has decrease 50% and the compensation rate precsion has promoted double. 2011 IEEE.