Results 81 to 90 of about 95,793 (250)

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Bifurcation for an elliptic problem with nonlinear boundary conditions

Revista Integración, 2012
This paper gives a survey over bifurcation problems for elliptic equations with nonlinear boundary conditions depending on a real parameter. We consider an elliptic equation with a nonlinear boundary condition which is asymptotically linear at ...
Rosa Pardo
doaj   +2 more sources

Well-posedness of discontinuous boundary-value problems for nonlinear elliptic complex equations in multiply connected domains

Electronic Journal of Differential Equations, 2013
In the first part of this article, we study a discontinuous Riemann-Hilbert problem for nonlinear uniformly elliptic complex equations of first order in multiply connected domains. First we show its well-posedness. Then we give the representation of
Guo-Chun Wen
doaj  

On a nonlinear elliptic eigenvalue problem

Journal of Mathematical Analysis and Applications, 2005
Let \(\Omega\) be a smooth bounded domain in \(\mathbb R^N\), \(N\geq2\), and \(f\in C(\mathbb R)\) satisfy \(\lim_{t\to0}f(t)/| t| ^{p-2}t=1\), where \(p\in(2,2N/(N-2))\). Let \(N(\lambda)\) denote the number of solutions of the problem \(-\Delta u=\lambda f(u)\) in \(\Omega\), \(u=0\) on \(\partial\Omega\).
Chen, Shaowei, Li, Shujie
openaire   +2 more sources

Quantifying Model Selection Uncertainty in Structural Analysis: Methodology and Application

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT With increasing focus on complex engineering systems under rare events, computational models are critical for predictions due to the scarcity or absence of data. However, selecting an appropriate model can be challenging. Using a single model without available test calibration could result in significant bias in performance predictions. A case
Ya‐Heng Yang, Tracy C. Becker
wiley   +1 more source

Leray-Schauder’s solution for a nonlocal problem in a fractional Orlicz-Sobolev space

Moroccan Journal of Pure and Applied Analysis, 2020
Via Leray-Schauder’s nonlinear alternative, we obtain the existence of a weak solution for a nonlocal problem driven by an operator of elliptic type in a fractional Orlicz-Sobolev space, with homogeneous Dirichlet boundary conditions.
Boumazourh Athmane, Srati Mohammed
doaj   +1 more source

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

Journal of Forecasting, EarlyView.
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley   +1 more source

Nonlinear parabolic-elliptic system in Musielak-Orlicz-Sobolev spaces

Electronic Journal of Differential Equations, 2018
The existence of a capacity solution to the thermistor problem in the context of inhomogeneous Musielak-Orlicz-Sobolev spaces is analyzed. This is a coupled parabolic-elliptic system of nonlinear PDEs whose unknowns are the temperature inside a ...
Francisco Ortegon Gallego, Mohamed Rhoudaf, Hajar Sabiki   +2 more
doaj  

Constraints Optimal Control Problem For Quaternary Nonlinear Elliptic System

Academic Science Journal
This paper is concerned with the study of the constraints quaternary continuous classical optimal control vector problem (CQCCOCVP) with equality and inequality constraint (EINC) controlled by quaternary nonlinear elliptic partial differential equations
Jamil Al-Hawasy, Haider H. Diwan, Waffa F. Keidan   +2 more
doaj   +1 more source

Positive Solution to a Nonlinear Elliptic Problem

Potential Analysis, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source