Results 41 to 50 of about 5,938,459 (354)

Height and attitude tracking control of an unmanned helicopter via a HDOB-backstepping composite control method

open access: yesThe Journal of Engineering, 2019
This study studies the height and attitude tracking control problem of an unmanned helicopter system with disturbances. A composite controller based on the combination of harmonic disturbance observers and backstepping technique is proposed to achieve ...
Ling Han   +3 more
doaj   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination

open access: yesIEEE Access, 2018
This paper describes a case study carried out to quantify the benefits achieved from the application of model predictive control (MPC) to regulate the pH in a brine dechlorination process.
Yusuf A. Sha'aban   +4 more
doaj   +1 more source

Synthesis of extreme control systems

open access: yesElectronics and Communications, 2014
Досліджено та синтезовано крокову екстеремальну систему з  постійним інтервалом та крокову екстремальну систему з двома пробними кроками. Розроблені моделі для досліджувальних систем керування (у статті розглянуті системи з одним керуючим впливом) за допомогою программного пакету MATLAB/Simulink.
Zasyadvovk, O. V.   +1 more
openaire   +3 more sources

Analysis and Synthesis of Reset Control Systems [PDF]

open access: yesFoundations and Trends® in Systems and Control, 2018
This survey monograph overviews a large core of research results produced by the authors in the past decade about reset controllers for linear and nonlinear plants. The corresponding feedback laws generalize classical dynamic controllers because of the interplay of mixed continuous/discrete dynamics.
Prieur, Christophe   +3 more
openaire   +4 more sources

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

PREDICTIVE CONTROL SYSTEM SYNTHESIS OF DISTRICT HEATING SYSTEM

open access: yesProblems of the Regional Energetics, 2011
A combined system of building heating predictive control has been synthesized in the research. Following algorithms are described: adaptive algorithm of very short-term temperature forecast and algorithm of anticipatory control of heat supply to building
Dobrotin S.A., Prokopchuk E.L.
doaj  

Two novel approaches of adaptive finite‐time sliding mode control for a class of single‐input multiple‐output uncertain nonlinear systems

open access: yesIET Cyber-systems and Robotics, 2021
Some systems, in spite of having multiple outputs, have only one control input, which makes their control a challenge. Two novel controllers are proposed that utilise an adaptive finite‐time sliding mode control (AFSMC) scheme for a class of single‐input
Pooyan Alinaghi Hosseinabadi   +3 more
doaj   +1 more source

Synthesis of communicating controllers for distributed systems [PDF]

open access: yesIEEE Conference on Decision and Control and European Control Conference, 2011
We consider the control of distributed systems composed of subsystems communicating asynchronously; the aim is to build local controllers that restrict the behavior of a distributed system in order to satisfy a global state avoidance property. We model our distributed systems as communicating finite state machines with reliable unbounded FIFO queues ...
Kalyon, Gabriel   +3 more
openaire   +3 more sources

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

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