Results 101 to 110 of about 1,520 (217)

Carleman estimates for the Euler-Bernoulli plate operator

Electronic Journal of Differential Equations, 2000
We present some a-priori estimates of Carleman type for the Euler-Bernoulli plate operator. As an application, we consider a problem of boundary observability for the Euler-Bernoulli plate coupled with the heat equation.
Paolo Albano
doaj  

A Visible Light‐Responsive Hydrogel to Study the Effect of Dynamic Tissue Stiffness on Cellular Mechanosensing

Advanced Functional Materials, EarlyView.
A visible light‐responsive polyacrylamide‐azobenzene hydrogel enables safe, reversible stiffness control for studying cell mechanobiology without harmful UV exposure. This approach reveals stem cells respond rapidly to mechanical changes, showing altered shape and protein distribution within one hour.
Aafreen Ansari, Sanchyan Bhowmik, Kaiwen Zhang, Chayla L. Reeves, Danielle Vahala, Yu Suk Choi, Amy Gelmi, Alexander N. Combes, Rocky S. Tuan, Vinh X. Truong, John S. Forsythe, Jessica E. Frith   +11 more
wiley   +1 more source

Controllability linear systems with many delays in control by the differential regulators

Журнал Белорусского государственного университета: Математика, информатика, 2019
In the theory of controllability dynamical systems in most cases the control is selected from the class of piecewise  continuous functions. But the choise of the control from other classes is interested.
Georgii P. Razmyslovich, Valerii V. Krakhotko   +1 more
doaj  

Double Cross‐Linked Hydrogel for Intra‐articular Injection as Modality for Macrophages Metabolic Reprogramming and Therapy of Rheumatoid Arthritis

Advanced Functional Materials, EarlyView.
A hydrogel for intra‐articular injection for the treatment of rheumatoid arthritis (RA) is formulated and comprehensively studied. After administration, the hydrogel induces a metabolic reprogramming of immunometabolism of macrophages to trigger fatty acid oxidation subsequently inducing polarization of anti‐inflammatory M2 macrophages. This results in
Yutong Song, Valentin A. Milichko, Ziqiao Ding, Wen Li, Bei Kang, Yunsheng Dou, Sona Krizkova, Zbynek Heger, Nan Li   +8 more
wiley   +1 more source

Privacy Preservation of Nabla Discrete Fractional-Order Dynamic Systems

Fractal and Fractional
This article investigates the differential privacy of the initial state for nabla discrete fractional-order dynamic systems. A novel differentially private Gaussian mechanism is developed which enhances the system’s security by injecting random noise ...
Jiayue Ma, Jiangping Hu, Zhinan Peng
doaj   +1 more source

Built‐In Electric Field in 2D/2D LDH/Antimonene Heterostructure to Induce Stable β‐NiOOH at Ultralow Potential for Cost‐Effective Water Electrolysis

Advanced Functional Materials, EarlyView.
In this paper, a built‐in electric field (BEF) strategy is proposed to fabricate NiFe‐LDH/antimonene heterostructure as bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The formed BEF generates a local potential that reduces the potential for the formation of β‐NiOOH, thereby enabling ultra‐low ...
Jingkun Wang, Xiaoning Li, Haojie Liang, Chenxi Zhang, Huayun Du, Ying Sun, Hui Li, Hongge Pan, Yuying Hao, Min Zhao, Tianbao Li, Tianyi Ma   +11 more
wiley   +1 more source

Carleman estimates and boundary observability for a coupled parabolic-hyperbolic system

Electronic Journal of Differential Equations, 2000
This paper studies a problem of boundary observability for a coupled system of parabolic-hyperbolic type. First, we prove some Carleman estimates with singular weights for the heat and for the wave equations.
Paolo Albano, Daniel Tataru
doaj  

Au@h‐BN Core–Shell Nanostructure as Advanced Shell‐Isolated Nanoparticles for In Situ Electrochemical Raman Spectroscopy in Alkaline Environments

Advanced Functional Materials, EarlyView.
This study demonstrates the stability and Raman signal enhancement effects of Au@h‐BN nanoparticles in an alkaline electrolyte on. A comparison between conventional SiO2 and h‐BN shells reveals that the h‐BN core‐shell structure provides superior stability and enhanced Raman intensity over multiple cyclic voltammetry cycles.
Jee Hyeon Kim, Jihyun Ra, Younghee Park, Junyeon Yoon, Eunji Lee, Hyunseob Lim   +5 more
wiley   +1 more source

Fluoride‐Free Molten Salt Hydrate‐Assisted Synthesis of MXene in Air Down to 150 °C

Advanced Functional Materials, EarlyView.
A novel low‐temperature shielded salt (LSS) approach enables the synthesis of MXenes in air at temperatures as low as 150 °C using MgCl2·6H2O/LiCl. This method demonstrates successful etching of challenging MXenes like Cr2CTx and Nb2CTx through the synergistic effects of Li+ ions and salt hydrate phase changes, while eliminating the need for inert ...
Sin‐Yi Pang, Weng Fu Io, Lok‐Wing Wong, Xinyue Lao, Qianqian Bai, Kam Lin Chan, Jiong Zhao, Jianhua Hao   +7 more
wiley   +1 more source

Multiscale Thermal Analysis of Gold Nanostars in 3D Tumor Spheroids: Integrating Cellular‐Level Photothermal Effects and Nanothermometry via X‐Ray Spectroscopy

Advanced Healthcare Materials, EarlyView.
This study investigates nanoscale temperatures generated by photoexcited gold nanostars and their correlation with microscale thermal damage at the cellular level. Using X‐ray absorption spectroscopy and confocal microscopy in 3D cancer spheroids, it assesses localized heating effects and examines tumor cell structure and integrity, offering insights ...
Rosalía López‐Méndez, Anastasiia Dubrova, Javier Reguera, Rául Magro, Fátima Esteban‐Betegón, Ana Parente, Miguel Ángel García, Julio Camarero, Emiliano Fonda, Claire Wilhelm, Álvaro Muñoz‐Noval, Ana Espinosa   +11 more
wiley   +1 more source