中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共7条,第1-7条 帮助

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Probability Quantification of GSI and D in Hoek-Brown Criterion Using Bayesian Inversion and Ultrasonic Test in Rock Mass 期刊论文  OAI收割
ROCK MECHANICS AND ROCK ENGINEERING, 2023, 卷号: -, 期号: -, 页码: -
作者:  
Liu, Jian;  Jiang, Quan;  Dias, Daniel;  Tao, Chen
  |  收藏  |  浏览/下载:20/0  |  提交时间:2023/08/02
Estimating the geological strength index and disturbance factor in the Hoek-Brown criterion using the acoustic wave velocity in the rock mass 期刊论文  OAI收割
ENGINEERING GEOLOGY, 2022, 卷号: 306
作者:  
Xia, Kaizong;  Chen, Congxin;  Wang, Tianlong;  Zheng, Yun;  Wang, Yue
  |  收藏  |  浏览/下载:11/0  |  提交时间:2023/08/02
Quantification of the GSI and D values in the Hoek-Brown criterion using the rock quality designation (RQD) and discontinuity surface condition rating (SCR) 期刊论文  OAI收割
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2022, 卷号: 81, 期号: 1, 页码: 21
作者:  
Xia, Kaizong;  Chen, Congxin;  Wang, Tianlong;  Pang, Hansong;  Liu, Xuanting
  |  收藏  |  浏览/下载:136/0  |  提交时间:2022/02/17
Deposition of atmospheric pollutant and their chemical characterization in snow pit profile at Dokriani Glacier, Central Himalaya 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2018, 卷号: 15, 期号: 10, 页码: 2236-2246
作者:  
Sundriyal, Shipika
  |  收藏  |  浏览/下载:23/0  |  提交时间:2020/10/26
Recent advances in soil seed bank research 期刊论文  OAI收割
CONTEMPORARY PROBLEMS OF ECOLOGY, 2013, 期号: 5, 页码: 520-524
作者:  
Wang, Yongcui;  Jiang, Deming;  Toshio, Oshida;  Zhou, Quanlai
收藏  |  浏览/下载:13/0  |  提交时间:2016/12/05
Trajectory tacking control of a quad-rotor based on active disturbance rejection control (EI CONFERENCE) 会议论文  OAI收割
2012 IEEE International Conference on Automation and Logistics, ICAL 2012, August 15, 2012 - August 17, 2012, Zhengzhou, China
Gong X.; Tian Y.; Bai Y.; Zhao C.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
The objective of this paper is to deal with a trajectory tracking of a Quad-rotor unmanned aerial vehicle (UAV). For the model uncertainty  the external disturbance and the coupling factor are considered  an active disturbance rejection control (ADRC) algorithm is introduced into the designing procedure. The aircraft dynamic model is proposed in this article  based on which the closed-loop control system is divided into four independent channels with the coupling factor compensated by the extended state observer (ESO). The nonlinear state error feedback (NLSEF) algorithm is designed in each channel to improve the closed-loop dynamics. In this article  the ADRC controller is expressed in the discrete form. And finally  the simulation results show that the proposed control algorithm achieves a favourable tracking performance. 2012 IEEE.  
Floristic Characteristics and Biodiversity Patterns in the Baishuijiang River Basin, China 期刊论文  iSwitch采集
ENVIRONMENTAL MANAGEMENT, 2009, 卷号: 44, 期号: 1, 页码: 73-83
作者:  
Liu, Bing;  Zhao, Wenzhi;  Wen, Zijuan;  Teng, Jirong
收藏  |  浏览/下载:36/0  |  提交时间:2019/10/08