Results 41 to 50 of about 282,811 (270)

Supplemental vibrotactile feedback control of stabilization and reaching actions of the arm using limb state and position error encodings

open access: yesJournal of NeuroEngineering and Rehabilitation, 2017
Background Deficits of kinesthesia (limb position and movement sensation) commonly limit sensorimotor function and its recovery after neuromotor injury.
Alexis R. Krueger   +4 more
doaj   +1 more source

Separation Principle for Linear Sampled-Data Control Systems Under Observer-Based Output Feedback With Aperiodic Sampling

open access: yesIEEE Access, 2020
This paper studies a separation principle for a class of linear sampled-data control systems with aperiodic sampling. The concerned problem is to show that in aperiodic sampling, the design of observer-based output feedback controller can be broken into ...
Do Wan Kim
doaj   +1 more source

Stabilizing continuous-wave output in semiconductor lasers by time-delayed feedback [PDF]

open access: yes, 2008
The stabilization of steady states is studied in a modified Lang-Kobayashi model of a semiconductor laser. We show that multiple time-delayed feedback, realized by a Fabry-Perot resonator coupled to the laser, provides a valuable tool for the suppression
Eckehard Schöll   +4 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Feedback stabilization of parabolic systems with bilinear controls

open access: yesElectronic Journal of Differential Equations, 2011
In this article, we study infinite-bilinear systems, and consider a decomposition of the state space via the spectral properties of the systems.
Mohamed Ouzahra
doaj  

Feedback stabilization of semilinear heat equations

open access: yesAbstract and Applied Analysis, 2003
This paper is concerned with the internal and boundary stabilization of the steady-state solutions to quasilinear heat equations via internal linear feedback controllers provided by an LQ control problem associated with the linearized equation.
V. Barbu, G. Wang
doaj   +1 more source

Stabilization of Coupled Linear Systems Via Bounded Distributed Feedbacks

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
This article deals with a stabilization problem for a team of linear interconnected systems via bounded feedbacks. Effective approaches to stabilization of constrained systems from model predictive control theory are developed for the decentralized case ...
N. M. Dmitruk
doaj   +1 more source

Time-delayed feedback control of breathing localized structures in a three-component reaction-diffusion system

open access: yes, 2014
We investigate the dynamics of a single breathing localized structure in a three-component reaction-diffusion system subjected to the time-delayed feedback.
Gurevich, Svetlana V.
core   +1 more source

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