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浏览/检索结果: 共30条，第1-10条 帮助

条数/页： 排序方式：
Responses of Infiltration Potential and Soil-Erosion Processes to Rainfall Patterns in Two Types of Slopes over the Eastern Region of the Tibetan Plateau 期刊论文  OAI收割
EURASIAN SOIL SCIENCE, 2022, 页码: 13
作者:  Liu, Qi;  Su, Lijun;  Zhang, Chonglei;  Hu, Bingli;  Xiao, Siyou
  |  收藏  |  浏览/下载：32/0  |  提交时间：2022/12/26
On the Acquisition of High-Quality Digital Images and Extraction of Effective Color Information for Soil Water Content Testing 期刊论文  OAI收割
SENSORS, 2022, 卷号: 22, 期号: 9
作者:  Liu, Guanshi;  Tian, Shengkui;  Mo, Yankun;  Chen, Ruyi;  Zhao, Qingsong
  |  收藏  |  浏览/下载：7/0  |  提交时间：2023/08/02
Study of hidden structure detection for tunnel surrounding rock with pulse reflection method 期刊论文  OAI收割
MEASUREMENT, 2020, 卷号: 159, 页码: 14
作者:  Wang, Jinchao;  Wang, Chuanying;  Han, Zengqiang;  Jiao, Yuyong;  Zou, Junpeng
  |  收藏  |  浏览/下载：18/0  |  提交时间：2021/05/25
Automatic generation of landslide profile for complementing landslide inventory 期刊论文  OAI收割
GEOMATICS NATURAL HAZARDS & RISK, 2020, 卷号: 11, 期号: 1, 页码: 1000-1030
作者:  Li, Langping;  Lan, Hengxing;  Strom, Alexander
  |  收藏  |  浏览/下载：15/0  |  提交时间：2021/07/09
Automatic generation of landslide profile for complementing landslide inventory 期刊论文  OAI收割
GEOMATICS NATURAL HAZARDS & RISK, 2020, 卷号: 11, 期号: 1, 页码: 1000-1030
作者:  Li, Langping;  Lan, Hengxing;  Strom, Alexander
  |  收藏  |  浏览/下载：12/0  |  提交时间：2021/07/09
Distribution, pollution, and ecological risks of rare earth elements in soil of the northeastern Qinghai-Tibet Plateau 期刊论文  OAI收割
HUMAN AND ECOLOGICAL RISK ASSESSMENT, 2019, 卷号: 25, 期号: 7, 页码: 1816-1831
作者:  Wu, J;  Lu, J;  Li, LM;  Min, XY;  Zhang, ZH
  |  收藏  |  浏览/下载：34/0  |  提交时间：2020/07/08
Quantitative Estimation of Biomass of Alpine Grasslands Using Hyperspectral Remote Sensing 期刊论文  OAI收割
RANGELAND ECOLOGY & MANAGEMENT, 2019, 卷号: 72, 期号: 2, 页码: 336-346
作者:  Bo Kong;  Huan Yu;  Rongxiang Du;  Qing Wang
  |  收藏  |  浏览/下载：56/0  |  提交时间：2019/04/15
Constitutive Model of Rock Dilatancy-Bulking Behavior and Its Application to A Deep Roadway 期刊论文  OAI收割
DISASTER ADVANCES, 2013, 卷号: 6, 页码: 185-193
作者:  Lu, Xingli;  Su, Peifang;  Liu, Quansheng
  |  收藏  |  浏览/下载：24/0  |  提交时间：2018/06/05
Research on the torque characteristic of disc micromotor on axial magnetic field (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012, April 21, 2012 - April 23, 2012, Three Gorges, China
Liu B.
收藏  |  浏览/下载：51/0  |  提交时间：2013/03/25
In order to increase the electromagnetic torque density of micromotor with axial magnetic field  numerical analysis of permanent magnetic field and electromagnetic torque were deduced and the key factors of increasing torque density of micromotor was obtained. The numerical analysis of three-dimensional magnetic field in air gap produced by spliced sector permanent magnetic poles is done  and the way of improving flux density and permanent magnet use efficiency are given through investigating the influence of magnet thickness  height of air gap and pole interval rate and other parameters to air gap flux density and leakage flux. Based on the test of axial magnetic field and torque characteristic of micromotor  the analysis of micromotor magnetic field and calculation of torque are verified  meanwhile using the plane stator with 0.7mm thickness assemble micromotor having minimum air gap height of 1mm and its torque constant up to 3.8mNm/A. 2012 IEEE.  
Trajectory tracking control of a quad-rotor UAV based on command filtered backstepping (EI CONFERENCE) 会议论文  OAI收割
2012 3rd International Conference on Intelligent Control and Information Processing, ICICIP 2012, July 15, 2012 - July 17, 2012, Dalian, China
Gong X.; Bai Y.; Peng C.; Zhao C.; Tian Y.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
A quad-rotor unmanned aerial vehicle is an under-actuated  strong coupled nonlinear system with parameters uncertainty and unknown external aerodynamic disturbance. The trajectory tracking control system with a nested double-loops structure is designed in this paper according to the coupling characteristic between the attitude angles and translational position. A PD control algorithm is proposed in the translational outer-loop to export the desired attitude signals to the attitude inner-loop. An adaptive backstepping control algorithm is designed in the inner-loop with respect to the uncertain rotational inertia and un-modeled disturbance  while in order to reduce the computational complexity the command filtered approach is introduced into the designing procedure. And finally  the numerical simulation results are presented for the trajectory tracking stabilization of a Quad-rotor  which demonstrates the excellent performance of the proposed control system and illustrate its robustness in face of disturbance and uncertain parameters. 2012 IEEE.