Results 51 to 60 of about 522,977 (267)
Power Electronics and DrivesIn modular multilevel converters (MMCs), circulating currents consist of both DC and AC components. However, these currents are significantly affected by even harmonic distortions, which introduce ripples in the sub-module (SM) capacitor voltages.
Kumar Pradeep +2 more
doaj +1 more source
, 2001 We have fabricated and studied a new kind of DC SQUID in which the magnitude and sign of the critical current of the individual Josephson junctions can be controlled by additional voltage probes connected to the junctions. We show that the amplitude of the voltage oscillations of the SQUID as a function of the applied magnetic field can be tuned and ...
Baselmans, J. J. A. +2 more
openaire +2 more sources
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 +9 more
wiley +1 more source
The Journal of Engineering, 2019 In this study, a novel disturbance observer-based (DOB) [inline-formula] robust anti-disturbance tracking control problem is discussed for a kind of single-link flexible-joint manipulator with separate types of disturbances.
Chenbo Niu +3 more
doaj +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 +2 more
wiley +1 more source
GPIO-based robust control of magnetic levitation system subject external disturbance
The Journal of Engineering, 2019 This article considers the robust control problem of non-linear magnetic levitation system with parameter uncertainties and external disturbance.
Qixun Lan +5 more
doaj +1 more source
New tuning rules for PI and fractional PI controllers
IFAC Proceedings Volumes, 2009 Abstract Abstract This paper presents new tuning rules for PI and fractional PI control of processes that are typically found in process control. The rules are based on characterization of process dynamics by three parameters that can be obtained from a simple step response experiment.
Juan J. Gude, Evaristo Kahoraho
openaire +1 more source
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Optimal GA-based PI control of SVC compensator improving voltage stability
Revue des Énergies Renouvelables, 2018 In this paper, a genetic algorithm is used for the optimization and tuning of PI controller parameters in order to improve the performance of SVC compensator in both dynamic and static response.
A. Harrag, S. Messalti
doaj
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source