Results 91 to 100 of about 165,815 (307)

Behaviour near zero and near infinity of solutions to elliptic equalities and inequalities

Electronic Journal of Differential Equations, 2001
Here we consider elliptic equations and inequalities involving quasilinear operators in divergence form and nonlinear lower order terms: $$-mathop{m div}left(mathcal{A}(x,u,abla u)ight) geq |x|^sigma u^Qquad(Q>0,sigma in mathbb{R}), $$ in dimension $Ngeq
Marie-Francoise Bidaut-Veron
doaj  

Real‐World Safety and Effectiveness of JAK Inhibitors in Systemic Sclerosis: A Propensity‐Matched Study from the EUSTAR Cohort

Arthritis Care &Research, Accepted Article.
Objective JAK inhibitors (JAKis) have shown promising effects in early‐phase studies of SSc. We aimed to assess the safety and explore effectiveness of JAKis compared to conventional immunosuppressants in SSc. Methods A longitudinal retrospective study of the EUSTAR cohort was performed.
Stefano Di Donato, Marie‐Elise Truchetet, Marco Minerba, Oliver Distler, Juan José Alegre Sancho, Yolanda Braun‐Moscovici, Christina Bergmann, Petros Sfikakis, Jeska K de Vries‐Bouwstra, Murray Baron, Silvia Bellando‐Randone, Lorenzo Dagna, Christopher P Denton, Madelon C Vonk, Vanessa Smith, Ivan Castellvi, Gabriela Riemekasten, Andra Balanescu, Masataka Kuwana, Maria De Santis, Kamal Solanki, Anastas Batalov, Vahan Mukuchyan, Marco Matucci‐Cerinic, Yannick Allanore, Francesco Del Galdo, Michael Hughes, EUSTAR Collaborators   +27 more
wiley   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Necessary conditions of existence for an elliptic equation with source term and measure data involving p-Laplacian

Electronic Journal of Differential Equations, 2002
We study the nonnegative solutions to equation $$ -Delta_{p}u=u^{q}+lambdau, $$ in a bounded domain $Omega$ of $mathbb{R}^{N}$, where $10$ is a parameter. We give necessary conditions on $u$ for existence, with $lambda$ small enough, in terms of capacity.
Marie-Francoise Bidaut-Veron
doaj  

A priori estimates for excitable models

, 2013
An integro-differential operator which models several phenomena in viscoelasticity, biology and superconductivity is considered. The initial-boundary problems with Neumann, Dirichlet and mixed boundary conditions are analyzed and results on existence ...
DE ANGELIS, MONICA
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Quasi-norm a priori and a posteriori error estimates for the nonconforming approximation of p-Laplacian

, 2001
In this paper, we derive quasi-norm a priori and a posteriori error estimates for the Crouzeix-Raviart type finite element approximation of the p-Laplacian. Sharper a priori upper error bounds are obtained.
Liu, Wenbin, Yan, Ningning
core   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

-estimates for nonlinear elliptic problems with -growth in the gradient

Journal of Inequalities and Applications, 1999
We consider the Dirichlet problem for a class of nonlinear elliptic equations whose model is . We give a priori -estimates using symmetrization methods. An obstacle problem for nonlinear variational inequalities is also studied.
Rakotoson JM, Ferone V, Posteraro MR
doaj  

Optimization of the integro-differential hyperbolic model

Міжнародний науково-технічний журнал "Проблеми керування та інформатики"
We consider a model of processes in viscoelastic media. The force arising inside the body may depend not only on the current values but also on the entire time history of the motion (for example, polymers, emulsions, and suspensions exhibit memory ...
Андрій Валерійович Анікушин, Олена Сергіївна Бондар , Христина Михайлівна Гранішак, Віктор Сергійович Ляшко   +3 more
doaj   +1 more source