Results 71 to 80 of about 57,343 (306)

Fast Finite-Time Super-Twisting Sliding Mode Control with an Extended State Higher-Order Sliding Mode Observer for UUV Trajectory Tracking

Drones
This paper proposes a trajectory tracking control scheme consisting of a fast finite-time super-twisting sliding mode control (FSTSMC) approach and an extended state higher-order sliding mode observer (ESHSMO) for unmanned underwater vehicles (UUVs) with
Liwei Guo, Weidong Liu, Le Li, Jingming Xu, Kang Zhang, Yuang Zhang   +5 more
doaj   +1 more source

New Reaching Law Control for Permanent Magnet Synchronous Motor With Extended Disturbance Observer

IEEE Access, 2019
In order to improve the anti-disturbance performance of permanent magnet synchronous motor (PMSM) servo system, a sliding-mode control strategy using a new reaching law (NRL) is proposed.
Yaoqiang Wang, Yutao Feng, Xiaoguang Zhang, Jun Liang, Xian Cheng   +4 more
doaj   +1 more source

Novel observers for compensation of communication delay in bilateral control systems [PDF]

, 2009
The problem of communication delay in bilateral or teleoperation systems is even more emphasized with the use of the internet for communication, which may give rise to loss of transparency and even instability.
Bogosyan, Seta, Gadamsetty, Bindu, Gokasan, Metin, Gokaşan, Metin, Sabanovic, Asif, Şabanoviç, Asif   +5 more
core   +1 more source

Disturbance decoupled fault reconstruction using sliding mode observers [PDF]

Asian Journal of Control, 2008
AbstractThis paper investigates and presents conditions that guarantee disturbance decoupled fault reconstruction using sliding mode observers, which are less stringent than those of previous work, and show that disturbance reconstruction is not necessary. An aircraft model validates the ideas proposed in this paper.Copyright © 2010 John Wiley and Sons
Kok Yew Ng, Chee Pin Tan, Rini Akmeliawati, Christopher Edwards   +3 more
openaire   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Accelerated Adaptive Second Order Super-Twisting Sliding Mode Observer

IEEE Access, 2019
An accelerated second-order super-twisting sliding mode observer with an adaptive gain is proposed for a typical nonlinear system. The key contribution of this algorithm is that the rate of convergence of observation error is accelerated remarkably by ...
Cheng Lin, Shengxiong Sun, Paul Walker, Nong Zhang   +3 more
doaj   +1 more source

Robust Super-Twisting Sliding Control of PAM- actuated Manipulator Based on Perturbation Observer

Cogent Engineering, 2020
This paper addresses the tracking control problem of a single-arm manipulator actuated by Pneumatic Artificial Muscle (PAM) subjected to perturbation in parameters.
Alaq Falah, Amjad J. Humaidi, Ayad Al-Dujaili, Ibraheem Kasim Ibraheem   +3 more
doaj   +1 more source

An equivalent control based second order sliding mode observer using robust differentiators [PDF]

, 2011
In this paper a sliding-mode observer for a class of non-linear systems is proposed. The observer is based on the equivalent control method. The mathematical tools required to design such an observer are also presented.
Botero-Castro, Héctor, Giraldo, Bertulfo, Loukianov, Alexander, Patiño-Murillo, Julián, Sánchez-Torres, Juan D.   +4 more
core   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

Research on Control Strategy of Permanent Magnet Synchronous Motor Based on Fast Terminal Super-Twisting Sliding Mode Observer

IEEE Access
The sliding mode observer (SMO) has the advantages of small influence by parameter changes and strong robustness, which is widely used in the sensorless control of permanent magnet synchronous motor (PMSM). However, when the sliding mode observer is used
Sen Wang, Haiyang Wang, Chong Tang, Jiaxin Li, Daili Liang, Yanhua Qu   +5 more
doaj   +1 more source