Results 71 to 80 of about 2,683,227 (282)

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

FEBS 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

Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid

IET Renewable Power Generation, 2021
This paper develops an enhanced proportional‐integral distributed control scheme (EPI‐DCS) to regulate the frequency and voltage of a droop‐controlled microgrid and share the power mismatch, simultaneously.
Yuanshi Zhang, Amin Mohammadpour Shotorbani, Liwei Wang, Behnam Mohammadi‐Ivatloo   +3 more
doaj   +1 more source

Synthesis and control of generalised dynamically substructured systems [PDF]

, 2009
The experimental technique for testing engineering systems via the method of dynamic substructuring is receiving significant global interest, for example in the fields of large-scale structural, aerospace, and automotive system testing.
Li, G, Stoten, DP, Tu, J-Y
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Hierarchical speed control for autonomous electric vehicle through deep reinforcement learning and robust control

IET Control Theory & Applications, 2022
For the speed control system of autonomous electric vehicle (AEV), challenge happens with how to determine an appropriate driving speed to satisfy the dynamic environment while resisting uncertainty and disturbance.
Guangfei Xu, Xiangkun He, Meizhou Chen, Hequan Miao, Huanxiao Pang, Jian Wu, Peisong Diao, Wenjun Wang   +7 more
doaj   +1 more source

A new solution approach to polynomial LPV system analysis and synthesis [PDF]

, 2004
Based on sum-of-squares (SOS) decomposition, we propose a new solution approach for polynomial LPV system analysis and control synthesis problems.
Prajna, Stephen, Wu, Fen
core  

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Gravity compensation and optimal control of actuated multibody system dynamics

IET Control Theory & Applications, 2022
This work investigates the gravity compensation topic, from a control perspective. The gravity could be levelled by a compensating mechanical system or in the control law, such as proportional derivative (PD) plus gravity, sliding mode control, or ...
Saeed Rafee Nekoo, José Ángel Acosta, Anibal Ollero   +2 more
doaj   +1 more source

Average dwell-time method to L2-gain analysis and control synthesis for uncertain switched nonlinear systems

, 2008
This paper addresses the L2-gain analysis and control synthesis problem for a class of switched nonlinear systems affected by both time-varying uncertainties and external disturbances. Firstly, the L2-gain for the autonomous switched disturbed uncertain system is analyzed.
Wang, Min, Dimirovski, Georgi M., Zhao, Jun   +2 more
openaire   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source