Results 71 to 80 of about 1,344,967 (337)

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

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS 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

Lyapunov-Based Two-Degree-of-Freedom Model Reference Adaptive Control of Axial-Piston Pump

open access: yesMathematics
The article is devoted to the synthesis, implementation, simulation and experimental study of a real-time Lyapunov-based two-degree-of-freedom model reference adaptive controller (MRAC) for an axial-piston pump.
Tsonyo Slavov   +2 more
doaj   +1 more source

Single Link Robot Arm Trajectory Following Using Model Reference Adaptive Control Algorithm [PDF]

open access: yesEngineering and Technology Journal, 2010
Robust adaptive tracking control algorithm is proposed in this paper for single link robot arm position control. A model reference adaptive control algorithm is applied to control the angular position of the robot arm by tuning the parameters of the ...
Nihad Mohammed Ameen
doaj   +1 more source

Nonlinear autoregressive moving average-L2 model based adaptive control of nonlinear arm nerve simulator system [PDF]

open access: yes, 2020
This paper considers the trouble of the usage of approximate strategies for realizing the neural controllers for nonlinear SISO systems. In this paper, we introduce the nonlinear autoregressive moving average (NARMA-L2) model which might be ...
Jibril, Mustefa
core   +2 more sources

Network traffic behaviour near phase transition point [PDF]

open access: yes, 2005
We explore packet traffic dynamics in a data network model near phase transition point from free flow to congestion. The model of data network is an abstraction of the Network Layer of the OSI (Open Systems Interconnection) Reference Model of packet ...
Lawniczak, Anna T., Tang, Xiongwen
core   +2 more sources

Strict Lyapunov Functions for Model Reference Adaptive Control: Application to Lagrangian Systems

open access: yesIEEE Transactions on Automatic Control, 2019
Model reference adaptive control is a well-understood and popular method used in the case when the plant's constant parameters are unknown and must be identified.
A. Loría, E. Panteley, M. Maghenem
semanticscholar   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Adaptive PF (PDF) Speed Control for Servo Drives [PDF]

open access: yes, 2013
This paper proposes two model reference adaptive PF (PDF) speed control methods for servo drives. Following from the structure (PF‐type) of model reference parameter adaptive control was developed to provide constant loop gain in speed control loop ...
Számel, László
core  

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