Results 91 to 100 of about 1,034,955 (303)

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

Bounded Linear Stability Analysis - A Time Delay Margin Estimation Approach for Adaptive Control [PDF]

open access: yes, 2009
This paper presents a method for estimating time delay margin for model-reference adaptive control of systems with almost linear structured uncertainty.
Bakhtiari-Nejad, Maryam   +3 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Fractional Model Reference Adaptive PIλDμ Control

open access: yesJournal of New Results in Science, 2016
This study explains the auto-adjustable fractional order the proportional–integral–derivative (PID) controller design methodology by using the technique of fractional model reference adaptive control (fractional MRAC).
Hüseyin Arpacı   +2 more
doaj  

THE MODEL REFERENCE ADAPTIVE SYSTEM IN THE DYNAMIC INPUT‐OUTPUT MODEL

open access: yesPapers in Regional Science, 1990
In this paper we explore the use of the Model Reference Adaptive System (MRAS) in a dynamic socio-economic enviroment. We prove the existence of adaptation laws which ensure that the error equation in MRAS for a dynamic input-output model is asymptotically stable. The resulting theorems are appraised through some numerical simulations.
Yuzuru Miyata, Etsuo Yamamura
openaire   +1 more source

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

open access: yesFEBS 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

Stable Maximum Descent: An Improved Method of Reference Model Adaptive Control

open access: yesMeasurement + Control, 1974
An improved method of reference model adaptive control is developed which provides fast adaptation of system parameters. Application of the theory is demonstrated on a practical example with three adaptive variables.
J. W. Green, P. H. Walker
doaj   +1 more source

An optimization procedure based on thermal discomfort minimization to support the design of comfortable Net Zero Energy Buildings [PDF]

open access: yes, 2013
The European standard EN 15251 specifies design criteria for dimensioning of building systems. In detail, it proposes that the adaptive comfort model is used, at first, for dimensioning passive means; but, if indoor operative temperature does not meet ...
CARLUCCI, SALVATORE, PAGLIANO, LORENZO
core  

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Precise orientation control of gimbals with parametric variations using model reference adaptive controller

open access: yesIET Control Theory & Applications
This study focuses on a model reference adaptive control method that ensures identical orientation outputs for different prototypes of a two‐axis gimbal produced in mass production. In this method, unlike traditional MRAC structures, an MRAC structure is
Ömer Çakmak, Erdinç Altuğ
doaj   +1 more source

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