Results 51 to 60 of about 1,345,655 (169)

Confinement‐Induced Nonlocality and Optical Nonlinearity of Transdimensional Titanium Nitride Films in the Epsilon‐Near‐Zero Region

Advanced Optical Materials, Volume 14, Issue 33, 4 September 2026.
The epsilon‐near‐zero (ENZ) effect in metals emerges only in nanometer‐scale films with exceptional optical quality. Titanium nitride (TiN) films grown by molecular beam epitaxy retain high crystallinity down to 2 nm and exhibit dramatically enhanced nonlinear optical responses near the ENZ region.
Fan‐Ting Tseng, I‐Hung Ho, Ting‐Jui Kuo, Shangjr Gwo, Igor V. Bondarev, Hyeyoung Ahn   +5 more
wiley   +1 more source

On formulation of nonlocal elasticity problems

, 2021
Nonlocal elasticity models are tackled with a general formulation in terms of source and target fields belonging to dual Hilbert spaces. The analysis is declaredly focused on small movements, so that a geometrically linearised approximation is assumed to
Giovanni Romano, Marina Diaco
core   +1 more source

On the convolutive development of elastic substrate media as nano foundation

Applications in Engineering Science
This study introduces a novel framework for developing models of elastic substrate foundations using an integral convolution approach. The proposed methodology systematically breaks down the applied load function into integral components and employs a ...
D. Indronil, IM Nazmul
doaj   +1 more source

Coupled Dynamics Between Networks and Fields in Physical Space: A Theoretical Perspective

Annalen der Physik, Volume 538, Issue 9, September 2026.
Networks embedded in physical space often communicate through dynamical fields that both mediate and respond to collective behavior. A unified theoretical perspective is presented for these network‐field systems, linking established mathematical frameworks and revealing how feedback between discrete interactions and continuous spatial processes can ...
Alex Arenas, Oriol Artime, Albert Díaz‐Guilera, Sergio Gómez, Clara Granell   +4 more
wiley   +1 more source

Existence and Uniqueness Results for a Kirchhoff Double-Phase Problem Involving the ψ-Hilfer Derivative

Mathematics
This work develops an analytical framework for nonlinear fractional partial differential equations that combine Kirchhoff-type terms, double-phase operators, and ψ-Hilfer fractional derivatives.
Najla Mohammed Alghamdi
doaj   +1 more source

Unraveling Microporosity in Hard Carbons: Insights Into Sustainable Sodium‐Ion Battery Materials

Batteries &Supercaps, Volume 9, Issue 9, September 2026.
Hidden microporosity in hard‐carbon anodes for sodium‐ion batteries is revealed by small‐angle X‐ray scattering combined with Ruland–Smarsly analysis, including closed pores inaccessible to gas adsorption. Comparing petroleum‐derived and biowaste‐derived carbons links nanoscale disorder, surface area, and pore architecture to sodium storage ...
Giorgia Greco, Alessandra Del Giudice, Mauro Falconieri, Serena Gagliardi, Flaminia Rondino, Maria Di Pea, Asia Patriarchi, Sonila Xhafa, Philipp Adelhelm, Sergio Brutti   +9 more
wiley   +1 more source

Microscale FFT‐based modeling of artificial porous microstructures and analysis of macroscopic models under varying loading scenarios

GAMM-Mitteilungen, Volume 49, Issue 3, September 2026.
Abstract This article investigates the modeling of metallic isotropic porous materials by evaluating and comparing macroscopic and microstructure‐resolved simulation approaches. At the macroscopic level, different variants of the Deshpande‐Fleck (DF) model are implemented to describe the elastoplastic behavior of metallic porous materials.
Julian Dahler, Sarah Staub, Lisa Scheunemann   +2 more
wiley   +1 more source

A Geometrically Regularized Gradient‐Damage Model With Orthogonality‐Based Energy Split for Dynamic Anisotropic Compression‐Shear Fracture

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 13, Page 5185-5212, September 2026.
ABSTRACT This study proposes a novel geometrically regularized gradient‐damage model for simulating dynamic mixed‐mode fracture in orthotropic materials with tension–compression asymmetry. In this model, a thermodynamic framework is formulated by incorporating damage dissipation into internal energy evolution, from which the constitutive relation and ...
Hui Li, Shanyong Wang
wiley   +1 more source

Global well-posedness for nonlinear nonlocal Cauchy problems arising in elasticity

Electronic Journal of Differential Equations, 2017
In this article, we prove global well-posedness for a family of one dimensional nonlinear nonlocal Cauchy problems arising in elasticity. We consider the equation $$ u_{tt}-\delta Lu_{xx}=\big(\beta \ast [(1-\delta)u+u^{2n+1}]\big)_{xx}\,, $$ where
Hantaek Bae, Suleyman Ulusoy
doaj  

Investigating the Thermomechanical Stability and Vibration of Curved Smart Sandwich Nanoplates Integrated With a Hexachiral Auxetic Core and Magneto‐Electro‐Elastic Surface Layers

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 9, September 2026.
ABSTRACT This study investigates the thermal vibration and buckling characteristics of smart sandwich nanoplates featuring a hexachiral auxetic core and piezoelectric/piezomagnetic face sheets. Utilizing the nonlocal strain gradient theory (NSGT) and a higher‐order shear deformation framework, the governing equations are derived to capture size ...
Mustafa Buğday, İsmail Esen
wiley   +1 more source