Results 81 to 90 of about 17,645,441 (296)

Two-Layer Security for Image Encryption: A Switched System Approach

IEEE Access
This paper proposes an image encryption-decryption scheme with two-layer security. In the first layer, an image is encrypted by a switched system, using the concept from control theory.
Uyen L. P. Nguyen, Long Tonthat, Vo-Tan Phuoc, Lap Luat Nguyen   +3 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Robust Fault Detection of Switched Linear Systems with State Delays [PDF]

, 2009
This correspondence deals with the problem of robust fault detection for discrete-time switched systems with state delays under an arbitrary switching signal.
Shi, Peng, Wang, W, Wang, Dong, Wang, Wei, Wang, D., Wang, W., Wang, D, Shi, P.   +7 more
core   +1 more source

Fault Detection Based on Interval Observers and Dynamic Event–Triggered Fault–Tolerant Control for Morphing Aircraft

International Journal of Applied Mathematics and Computer Science
In this paper, a fault detection mechanism using interval observers and a robust fault-tolerant control strategy with dynamic event-triggered mechanism are designed for the switched control problem during the transformation process of a morphing aircraft.
Fu Xingjian, Wang Xiaohan
doaj   +1 more source

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

SYNCHRONIZATION OF SWITCH DYNAMICAL SYSTEMS [PDF]

International Journal of Bifurcation and Chaos, 2002
The well known synchronization method of Fujisaka and Yamada is adapted to a particular class of piecewise continuous dynamical systems. We give sufficient conditions for the underlying initial value problems, in order to define dynamical systems.
openaire   +2 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Robust Stability Analysis of Switched Neural Networks with Application in Psychological Counseling Evaluation System

Mathematics
In this work, the effectiveness and stability of psychological counseling are evaluated using the switched complex-valued neural networks (SCVNN) model, which includes parameter disturbances, impulsive perturbations, variable and continuously distributed
Yajuan Li, Huanbin Xue
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source