中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2020, 卷号: 36, 期号: 4, 页码: 1091-1106
作者:  
Zhang Chao;  Wu XinWei;  Liu YongJiang;  Zhang YuJin;  Chao Zhang
  |  收藏  |  浏览/下载:17/0  |  提交时间:2021/02/02
Genesis of Early Permian A-type granites in the middle of the Great Xing'an Range and constraints on tectonic evolution of the Zhalantun area 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2020, 卷号: 36, 期号: 4, 页码: 1091-1106
作者:  
Zhang Chao;  Wu XinWei;  Liu YongJiang;  Zhang YuJin;  Chao Zhang
  |  收藏  |  浏览/下载:33/0  |  提交时间:2021/02/02
Summer precipitation changes over the Yangtze River Valley and North China: Simulations from CMIP3 models SCI/SSCI论文  OAI收割
2014
Zeng G.; Wang W. C.; Shen C. M.; Hao Z. X.
收藏  |  浏览/下载:47/0  |  提交时间:2014/12/24
The impacts of climate change on the Neolithic cultures of Gansu-Qinghai region during the late Holocene Megathermal SCI/SSCI论文  OAI收割
2010
Liu F. G.; Zhang Y. L.; Feng Z. D.; Hou G. L.; Zhou Q.; Zhang H. F.
收藏  |  浏览/下载:38/0  |  提交时间:2012/06/08
Instability characteristics of the East Asian Monsoon recorded by high-resolution loess sections from the last interglacial (MIS5) SCI/SSCI论文  OAI收割
2007
Guan Q. Y.; Pan B. T.; Gao H. S.; Li B. Y.; Wang J. P.; Su H.
收藏  |  浏览/下载:33/0  |  提交时间:2012/06/08
Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE) 会议论文  OAI收割
Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China
Zhang Z.; Sun J.; Wu K.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme  the sine output signal of the FOG was sampled and disposed  and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes  can meet the orientation need of artillery  terrain measurement vehicle  armored car  unmanned drive vehicle  geodetic survey and tunnel exploration.  
Discovery of Late Paleozoic retrograded eclogites from the middle part of the northern margin of North China Craton 期刊论文  OAI收割
CHINESE SCIENCE BULLETIN, 2004, 卷号: 49, 期号: 6, 页码: 600-606
作者:  
Ni, ZY;  Zhai, MG;  Wang, RM;  Tong, YN;  Shu, GM
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/09/26