Results 71 to 80 of about 1,597 (254)

Fuzzy Sliding Mode Control for a Nonlinear System With an Extended State Observer

Engineering Reports
This paper presents a fuzzy‐based sliding mode controller (SMC) that incorporates an extended state observer (ESO) to achieve accurate trajectory tracking of uncertain nonlinear systems.
Hayleyesus Girma Dirara, Chala Merga Abdissa, Gang Gyoo Jin   +2 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Current harmonics suppression of dual three-phase synchronous machines with discrete generalized resonant-extended state observer and deadbeat control

Engineering Science and Technology, an International Journal
The sinusoidal phase current of the dual three-phase (DTP) synchronous machines is subjected to the large stator current harmonics on account of the low impedance, resulting in a decrease in efficiency and severe current distortions.
Qianwen Duan, Luyao Zhang, Jincong Zhu, Zhijun Li, Yao Mao, Qiliang Bao   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Trajectory tracking control for quadrotor based on MPC and ESO-DO [PDF]

Zhihui kongzhi yu fangzhen
An active disturbance suppression and model predictive control (MPC) strategy is proposed for the quadrotor precision trajectory tracking control problem under disturbance action and model uncertainty.
SUN Manyi, BI Wenhao, ZHANG An, DIAO Yuhao
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

A Pole-Placement-Based Variable-Gain Observer for Precision Motion Stages: Addressing the Disturbance-Noise Trade-Off

Actuators
Accurate pattern transfer in the lithography process demands extreme positioning accuracy. However, various external disturbances acting on the wafer stage can lead to positioning errors.
Aichen Wu, Xipeng Wu, Fazhi Song, Pengyu Sun, Jiubin Tan   +4 more
doaj   +1 more source

Cascaded Quasi-Resonant Extended State Observer-Based Deadbeat Predictive Current Control Strategy for PMSM

The traditional deadbeat predictive current control (DPCC) strategies for a permanent magnet synchronous motor (PMSM), such as those based on an extended state observer (ESO) and quasi-resonant extended state observer (QRESO), usually require large ...
Yongqiang Zhang, Tao Hu, Yang Liu, Xiaowei Yang   +3 more
core   +1 more source

Integral Nonsingular Terminal Sliding Mode Control of Hydraulic Servo Actuator Based on Extended State Observer

, 2021
Hydraulic servo actuator always suffers from various disturbance and uncertainties, which makes it difficult to design a higher performance controller.
Zhenshuai Wan, Yu Fu
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source