Results 31 to 40 of about 21,176,028 (153)

A Camera Stabilized Platform Based on the Feedforward Strap-Down Control with Approximate Dead-Zone Model and a Compensator with LESO

Machines, 2023
A feedforward strap-down control with a compensator base on the linear extended state observer (LESO) is proposed for a miniaturized camera stabilized platform, which reduces the influence of the dead zone in speed regulation and uncertainties in ...
Tianlei Fu, Yanbin Gao, Lianwu Guan, Chao Qin   +3 more
doaj   +1 more source

An anti-windup method based on the modified linear extended state observer for actuators in the miniaturized inertial stabilized platform

, 2023
This paper presents an anti-windup linear active disturbance rejection controller (LADRC) for a miniaturized inertial stabilized platform (MISP). To address the actuator saturation in acceleration during extreme external disturbance in the MISP, a ...
Fu, Tianlei, Wang, Yueyue, Guan, Lianwu, Li, Shutong, Wang, Gang, Gao, Yanbin   +5 more
core   +1 more source

Active Disturbance Rejection Control of Permanent Magnet Synchronous Motor Based on RPLESO

Energies
In view of the problem of the low-speed jitter of household lawn mowers driven by a permanent magnet synchronous motor (PMSM) at low speeds and high torque, and the complicated parameters of traditional non-linear active disturbance rejection controllers,
Chengpeng Zhou, Bo Wang, Kai Liu, Kaixuan Ren   +3 more
doaj   +1 more source

Fuzzy Adaptive Linear Active Disturbance Rejection Control for Quadrotor Load UAV Based on Kalman Filter

IEEE Access, 2023
In order to solve the problem of load variation and nonlinear strong coupling of the quadrotor load unmanned aerial vehicle (UAV), this paper proposes a fuzzy adaptive linear active disturbance rejection control algorithm based on the Kalman filter (KFFA-
Yunpeng Ju, Yalin Zhang, Guixin Zhu
doaj   +1 more source

Organizational GenAI Culture: Catalysts and Constraints for Crisis READINESS

Journal of Contingencies and Crisis Management, Volume 34, Issue 3, September 2026.
ABSTRACT The growing integration of generative artificial intelligence (GenAI) is reshaping how organizations prepare for and manage crises. This study examines cultural conditions that support GenAI READINESS through 11 interviews with communication experts.
Brittany N. Shivers, Lauren Flaker, Kaia Kirkpatrick, Anna Rachwalski, Yijing Wang, Yan Jin, Anca Anton, Silvia Ravazzani, Toni G. L. A. van der Meer, W. Timothy Coombs   +9 more
wiley   +1 more source

Super-twisting Extended State Observer Based Quasi-Proportional-Resonant Controller for Permanent Magnet Synchronous Motor Drive System

, 2023
For the purpose of realizing permanent magnet synchronous motor (PMSM) systems with strong robustness and smooth speed, the quasi-proportional-resonant (QPR) controller is combined with super-twisting extended state observer (STESO) in this paper ...
Chenhao Zhao, Shoukun Xu, Christopher H. T. Lee, Yuefei Zuo, Wang, Huanzhi, Qiankang Hou, Huanzhi Wang, Shihong Ding, Hou, Qiankang, Zuo, Yuefei, Zhao, Chenhao, Ding, Shihong, Lee, Christopher Ho Tin, Xu, Shoukun   +13 more
core   +1 more source

Altitude Control of Powered Parafoil Using Fractional Sliding-Mode Backstepping Control Combined with Extended State Observer

Applied Sciences, 2022
This paper presents a method of altitude control of the powered parafoil with uncertainties and disturbances based on sliding-mode backstepping control combined with a linear extended state observer (LESO).
Erlin Zhu, Youwu Du, Wei Song, Haitao Gao   +3 more
doaj   +1 more source

Betwixt playing the waiting game and waiting in vain: Temporal governance and the thin alignment of care under universal health coverage in Kenya

Medical Anthropology Quarterly, Volume 40, Issue 3, September 2026.
Abstract This article investigates how Kenyan citizens access healthcare within the framework of Universal Health Coverage (UHC) reforms. Based on ethnographic fieldwork, it reconceptualizes waiting as a politically structured phenomenon rather than a simple delay. The analysis shows that UHC reforms do not eliminate waiting but instead redistribute it,
Edwin Ambani Ameso
wiley   +1 more source

Spaceflight and sport science: Physiological monitoring and countermeasures for the astronaut–athlete on Mars exploration missions

Experimental Physiology, Volume 111, Issue 9, Page 3993-4003, 1 September 2026.
Abstract Long‐duration spaceflight impacts essentially every system in the human body, resulting in multisystem deconditioning that might impair the health and performance of crewmembers, particularly on long‐duration exploration missions to Mars. In this review, we apply the sport science model of athlete monitoring, testing and training to astronauts;
Luke DeVirgiliis, Nicholas J. Goode, Kurt W. McDowell, Kirk L. English, Robert Novo, Virina Botros, Ginika Agwu, Jessica M. Scott, Lori L. Ploutz‐Snyder   +8 more
wiley   +1 more source

Regeneration response to post‐disturbance forest management in Central Europe

Journal of Applied Ecology, Volume 63, Issue 8, August 2026.
As disturbance activity intensifies, forest management must identify strategies to facilitate the rapid recovery of disturbed sites. By studying 868 disturbed sites across Central Europe, we found that active post‐disturbance management significantly enhanced tree regeneration in regional disturbance hotspots.
Johannes S. Mohr, Christian Schattenberg, Mária Potterf, Kristin H. Braziunas, Christina Dollinger, Aikio T. Erhardt, Jean‐Claude Gégout, Lisa Geres, Sina Greiner, Marc Grünig, Tomáš Hlásny, Kilian Hochholzer, Anne Huber, Jonas Kerber, Kirsten Krüger, Judit Lecina‐Diaz, Lisa Mandl, Roman Modlinger, Miguel Muñoz Mazón, Paulina E. Pinto, Werner Rammer, Tobias Richter, Sebastian Seibold, Cornelius Senf, Josep M. Serra‐Diaz, Ana Stritih, Dominik Thom, Alba Viana‐Soto, Jiayun Zou, Rupert Seidl   +29 more
wiley   +1 more source