Results 61 to 70 of about 26,243 (274)

Finite-Time Stability of Fractional-Order Time-Varying Delays Gene Regulatory Networks with Structured Uncertainties and Controllers

Complexity, 2020
In this paper, we investigate a class of fractional-order time-varying delays gene regulatory networks with structured uncertainties and controllers (DFGRNs).
Zhaohua Wu, Zhiming Wang, Tiejun Zhou
doaj   +1 more source

The Tracking Control of the Variable-Order Fractional Differential Systems by Time-Varying Sliding-Mode Control Approach

Fractal and Fractional, 2022
This paper is concerned with the problem of tracking control for a class of variable-order fractional uncertain system. In order to realize the global robustness of systems, two types of controllers are designed by the global sliding-mode control method.
Jingfei Jiang, Xin Xu, Kun Zhao, Juan L. G. Guirao, Tareq Saeed, Huatao Chen   +5 more
doaj   +1 more source

A survey on fractional order control techniques for unmanned aerial and ground vehicles [PDF]

, 2019
In recent years, numerous applications of science and engineering for modeling and control of unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs) systems based on fractional calculus have been realized.
Cajo Diaz, Ricardo Alfredo, Copot, Cosmin, De Keyser, Robain, Ionescu, Clara-Mihaela, Mac Thi, Thoa, Plaza Guingla, Douglas Antonio   +5 more
core   +2 more sources

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

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, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Design and Development of Complex-Order PI-PD Controllers: Case Studies on Pressure and Flow Process Control

Applied System Innovation
This article examines the performance of the proposed complex-order, conventional and fractional-order controllers for process automation and control in process plants.
Muhammad Najmi Bin Roslan, Kishore Bingi, P. Arun Mozhi Devan, Rosdiazli Ibrahim   +3 more
doaj   +1 more source

An indirect discretization method for fractional order PID controllers [PDF]

, 2016
C
De Keyser, Robain, Ionescu, Clara-Mihaela, Muresan, Cristina I   +2 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Direct Synthesis of Fractional-Order Controllers Using Only Two Design Equations with Robustness to Parametric Uncertainties

Fractal and Fractional
This paper employs the Direct Synthesis approach to present an analytical methodology for designing fractional-order controllers, aiming to balance simplicity and robustness for practical industrial implementation.
Carlos Muñiz-Montero, Jesus M. Munoz-Pacheco, Luis A. Sánchez-Gaspariano, Carlos Sánchez-López, Jesús E. Molinar-Solís, Melissa Chavez-Portillo   +5 more
doaj   +1 more source

On fractional predictive PID controller design method [PDF]

, 2017
A new method of designing fractional-order predictive PID controller with similar features to model based predictive controllers (MPC) is considered.
Edet, Emmanuel, Katebi, Reza
core   +1 more source