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	Disturbance range characterization and reinforcement design method of concealed bedding slope 期刊论文 OAI收割 ENGINEERING FAILURE ANALYSIS, 2024, 卷号: 162, 页码: 20 作者: Qin, Hui; Yin, Xiaotao; Tang, Hua; Cheng, Xu \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2025/06/27 Bedding slope Failure mechanism Uniaxial compressive strength Deformation characteristics Disturbance range Active reinforcement
	How disturbance, competition, and dispersal interact to prevent tree range boundaries from keeping pace with climate change 期刊论文 OAI收割 GLOBAL CHANGE BIOLOGY, 2018, 卷号: 24, 期号: 1, 页码: E335-E351 作者: Liang, Yu; Duveneck, Matthew J.; Gustafson, Eric J.; Serra-Diaz, Josep M.; Thompson, Jonathan R. \| 收藏 \| 浏览/下载：57/0 \| 提交时间：2018/09/10 Climate Change Competition Disturbance Land Use PLu+s (Lu++) Landis-ii Pnet-succession Seed Dispersal Tree Range Shift
	How disturbance, competition, and dispersal interact to prevent tree range boundaries from keeping pace with climate change 期刊论文 OAI收割 GLOBAL CHANGE BIOLOGY, 2018, 卷号: 24, 期号: 1, 页码: E335-E351 作者: Liang, Yu; Duveneck, Matthew J.; Gustafson, Eric J.; Serra-Diaz, Josep M.; Thompson, Jonathan R. \| 收藏 \| 浏览/下载：55/0 \| 提交时间：2021/02/02 climate change competition disturbance Land Use Plus (LU+) LANDIS-II PnET-Succession seed dispersal tree range shift
	How disturbance, competition, and dispersal interact to prevent tree range boundaries from keeping pace with climate change 期刊论文 OAI收割 GLOBAL CHANGE BIOLOGY, 2018, 卷号: 24, 期号: 1, 页码: E335-E351 作者: Liang, Yu; Duveneck, Matthew J.; Gustafson, Eric J.; Serra-Diaz, Josep M.; Thompson, Jonathan R. \| 收藏 \| 浏览/下载：57/0 \| 提交时间：2021/02/02 climate change competition disturbance Land Use Plus (LU+) LANDIS-II PnET-Succession seed dispersal tree range shift
	Capability of the extended state observer for minimum phase plants with unknown orders and uncertain relative degrees (EI CONFERENCE) 会议论文 OAI收割 31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China Zhao C.; Yang X.; Xiong J.; Lin X. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 The observing capability of the active disturbance rejection control (ADRC) for the minimum phase plants with unknown orders and uncertain relative degrees is discussed in this paper. The frequency performance of the linear extended state observer (LESO) is analyzed. It is proved that ESO can estimate the required states at the designed speed in spite of a large range of uncertainties. Finally the results are verified by simulations. 2012 Chinese Assoc of Automati.
	The aircraft autopilot design of parameters changing in a wide range (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China Zhen D.; Yue Z. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 Autopilot is an important part of aircraft Under the action of the disturbance torque for the flight parameters of aircraft Changing in a wide range the range was about 16km on the basic of analyzing the typical trajectory the max height was about 5100m the trajectory of feature points were selected the deviation of lateral was about 12m taking pitch control loop for example the maximum angle of attack was about 3.6 a sub- PID autopilot was designed using classical control theory the maximum elevator deflection was less than 5 using single-mode Transient suppression method the maximum aileron deflection was less than 2 the overload due to control surface transition deflection was avoided when control parameters changing the maximum roll was less than 5 the verification was done by non-linear simulation. The result showed that: the phase margin of autopilot was greater than 30 the response of overload can accurately track the given overload instruction. An autopilot design method of aircraft of parameter changes in a wide range was provided. 2011 IEEE. the bandwidth was more than 14rad / s the settling time was less than 0.7s the maximum overshoot was 23.3%
	Control method research on wide flight envelope aerocraft (EI CONFERENCE) 会议论文 OAI收割 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China 作者: Duan Z. 收藏 \| 浏览/下载：52/0 \| 提交时间：2013/03/25 The flying qualities of aerocraft was directly effected by the autopilot for the wide flight envelope aerocraft on the basic of analyzing the typical trajectory the three loop autopilots of roll stability pitch and yaw were designed using single-mode Transient suppression method the overload due to control surface transition deflection was avoided when control parameters changing the verification was done by non-linear simulation. The result showed that: Under the action of the disturbance torque the maximum roll was less than 5 the range of the aerocraft was from 13.5km to 22.4km the max height was about 5100m the max deviation of lateral was about 42m the maximum elevator deflection was less than 6.5 the control law was applicable within the effective range. An autopilot design method of wide flight envelope aerocraft was provided. 2011 IEEE.
	Phase characteristics of laser beam in fibers (EI CONFERENCE) 会议论文 OAI收割 5th International Workshop on Adaptive Optics for Industry and Medicine, August 29, 2005 - September 1, 2005, Beijing, China 作者: Wang L.; Wang L.; Liu J.; Liu J.; Liu J. 收藏 \| 浏览/下载：47/0 \| 提交时间：2013/03/25 The phase changing rates1 of laser beam in single mode polarization maintaining fiber (PMF) Yb-doped rectangular inner cladding dual-clad fiber (DCF) and Yb-doped large-mode-area dual-clad fiber (LMF) are investigated by means of interference under situations with different exterior disturbance for situations that all the fibers are used as transmission medium only as well as amplifying medium with the last two. In this paper phase fluctuation characteristics of the beam transmitted through the fibers with no amplification are presented. The results show that the phase fluctuation frequencies of the laser beam transmitted through these three kinds of fibers are mainly in the range of 100-200Hz 100-300Hz and 80-400Hz respectively in normal laboratory environment. The phase fluctuation frequencies of the laser beam transmitted through the DCF in cases of when the environment temperature is changing a constant pressure is applied to the fiber and when vibration is applied are mainly in the range of 100-600Hz 100Hz-300Hz and 100-500Hz respectively. In the same cases for the LMF the phase fluctuation frequencies are mainly in the range of 150-600Hz 100-400Hz and 100-1000Hz respectively. It indicates that for realizing phase stabilization the bandwidth of any potential phase control2 system has to be in the range of a few kilohertz.