Results 81 to 90 of about 18,937,609 (292)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

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

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

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +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

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 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

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

FEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Command-Filtered Backstepping Control Algorithm for Quadrotor AAVs Based on Extended State Observer

IEEE Access
This paper proposes an extended state observer (ESO)-based command-filtered backstepping control (CFBC) framework for quadrotor autonomous aerial vehicles (AAVs) subject to external disturbances, parametric uncertainties, and incomplete state ...
Pham Quoc Khanh, Ha Le Nhu Ngoc Thanh, Truong Nguyen Luan Vu, Vo Lam Chuong   +3 more
doaj   +1 more source

Fault Diagnosis of Nonlinear Uncertain Systems with Triangular Form

Journal of Control Science and Engineering, 2017
A novel approach to fault diagnosis for a class of nonlinear uncertain systems with triangular form is proposed in this paper. It is based on the extended state observer (ESO) of the active disturbance rejection controller and linearization of dynamic ...
Qi Ding, Xiafu Peng, Xunyu Zhong, Xiaoqiang Hu   +3 more
doaj   +1 more source