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浏览/检索结果: 共10条，第1-10条 帮助

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Altitude explains insignificant autumn phenological changes across regions with large topography relief in the Tibetan Plateau 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 卷号: 921, 页码: 11
作者:  Cong, Nan;  Du, Zhiyong;  Zheng, Zhoutao;  Zhao, Guang;  Sun, Dongqi
  |  收藏  |  浏览/下载：32/0  |  提交时间：2024/05/20
3D modeling of multi-radiation source semi-airborne transient electromagnetic response 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2021, 卷号: 64, 期号: 2, 页码: 716-723
作者:  Li Xiu;  Hu WeiMing;  Xue GuoQiang
  |  收藏  |  浏览/下载：36/0  |  提交时间：2021/10/09
High-quality evergreen azalea genome reveals tandem duplication-facilitated low-altitude adaptability and floral scent evolution 期刊论文  OAI收割
PLANT BIOTECHNOLOGY JOURNAL, 2021, 卷号: 19, 期号: 12, 页码: 2544-2560
作者:  Wang,Xiuyun;  Gao,Yuan;  Wu,Xiaopei;  Wen,Xiaohui;  Li,Danqing
  |  收藏  |  浏览/下载：56/0  |  提交时间：2022/04/02
基于高空vr场景的应激反应诱发范式有效性验证 期刊论文  OAI收割
航天医学与医学工程, 2020, 卷号: 33, 期号: 1, 页码: 28-34
作者:  汪杼彬;  张玉麟;  董凯喜;  赵国朕
  |  收藏  |  浏览/下载：67/0  |  提交时间：2020/07/27
Numerical modeling and prediction of future response of permafrost to different climate change scenarios on the Qinghai-Tibet Plateau SCI/SSCI论文  OAI收割
2016
作者:  Zhang W. J.;  Ren, Z. P.;  Yao, L.;  Zhou, C. H.;  Zhu, Y. Q.
  |  收藏  |  浏览/下载：27/0  |  提交时间：2017/11/09
Numerical modeling and prediction of future response of permafrost to different climate change scenarios on the Qinghai-Tibet Plateau SCI/SSCI论文  OAI收割
2016
作者:  Zhang W. J.;  Ren, Z. P.;  Yao, L.;  Zhou, C. H.;  Zhu, Y. Q.
收藏  |  浏览/下载：27/0  |  提交时间：2016/12/16
Research of ballistic missile early warning system (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012, July 6, 2012 - July 8, 2012, Zhuhai, China
Zhang M.-H.; Zhang Y.-Y.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
To develop a lift early warning infrared device  as a part of land or boat (ship) early warning system  the system has the ability to target pre-discovery and instructions invasion. Methods: In support of distant air situation  alerts the enemy aircraft  missiles and other long-range goals  obtain the target type and preliminary judgment of grade  deliver the alarm information to the command system. The infrared alarm device detects the target's own infrared radiation passively  alarms the incoming targets at low altitude and low altitude remote  when radar and other equipment is out of work. Results: The accuracy of entire system reached 20 according the analysis. Conclusions: The device has a full range of complex background  with high sensitivity  high resolution  anti-jamming  fast response time and other characteristics. (2012) Trans Tech Publications  Switzerland.  
A comparative analysis of photosynthetic characteristics of hulless barley at two altitudes on the Tibetan Plateau SCI/SSCI论文  OAI收割
2011
Fan Y. Z.; Zhong Z. M.; Zhang X. Z.
收藏  |  浏览/下载：33/0  |  提交时间：2012/06/08
Research on the the device of non-angular vibration for opto-electronic platform (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
An Y.; Song C.-P.; Kuang R.-J.; Jin G.
收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25
The opto-electronic platform is the main equipment for aviation reconnaissance. It is a surveillance system with the function of search  recognition orientation and tracking by opto- electronic instruments. It is made up of opto-electronic instruments which are used to get high quality image  and stabilization tracking system to control stabilization and gesture of platform for exact tracking. The opto-electronic platform purpose is to achieve high quality image. Besides the impact of optic system  the image quality of the system is influenced greatly in the vibration environment. The research worked by Zhao peng which demonstrated the affection caused by angular vibration was worse than which caused by line vibration  and what was multiplied direct ratio with plane altitude. So it is necessary to design a new device which could be used widely and has good angular vibration isolation effect. According to the theory of parallelogram  the non-angular vibration device had been designed with spatial links  and the theory of non-angular vibration was analyzed. The three-dimensional model was set with UG  the analysis was done by ADAMS/vibration software. The acceleration and displacement response of the device in each direction was calculated by inspiriting it with sine wave of the acceleration in three directions  and the stiffness and damp were studied. All the work prove the design principle of the device is reasonable  and the device is adopted to keep the platform motion moving horizontally  at the meantime the device is good at isolating vibration in all directions. 2010 SPIE.  
Growth and reproduction of Sophora moorcroftiana responding to altitude and sand burial in the middle Tibet 期刊论文  iSwitch采集
ENVIRONMENTAL GEOLOGY, 2007, 卷号: 53, 期号: 1, 页码: 11-17
作者:  Zhao, Wenzhi;  Zhang, Zhihui;  Li, Qiuyan
收藏  |  浏览/下载：29/0  |  提交时间：2019/10/08