Results 81 to 90 of about 70,478 (262)
Existence and nonexistence results for quasilinear semipositone Dirichlet problems
Electronic Journal of Differential Equations, 2009 We use the sub/supersolution method to analyze a semipositone Dirichlet problem for the p-Laplacian. To find a positive solution, we therefore focus on a related problem that produces positive subsolutions.
Matthew Rudd
doaj
Radial positive solutions for a nonpositone problem in an annulus
Electronic Journal of Differential Equations, 2014 Let \(\Omega=\{x\in \mathbb{R}^n ...
Said Hakimi, Abderrahim Zertiti
openaire +2 more sources
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Blow-Up Analysis for a Quasilinear Degenerate Parabolic Equation with Strongly Nonlinear Source
Abstract and Applied Analysis, 2012 We investigate the blow-up properties of the positive solution of the Cauchy problem for a quasilinear degenerate parabolic equation with strongly nonlinear source ut=div(|∇um|p−2∇ul)+uq, (x,t)∈RN×(0,T), where N≥1, p>2 , and m, l, q>1, and give a ...
Pan Zheng +4 more
doaj +1 more source
Nonexistence of radial positive solutions for a nonpositone problem
Electronic Journal of Differential Equations, 2011 Summary: We study the nonexistence of radial positive solutions for a nonpositone problem when the nonliearity is superlinear and has more than one zero.
Said Hakimi, Abderrahim Zertiti
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Energy Distribution of a Regular Black Hole Solution in Einstein-Nonlinear Electrodynamics
Advances in Mathematical Physics, 2015 A study about the energy momentum of a new four-dimensional spherically symmetric, static and charged, regular black hole solution developed in the context of general relativity coupled to nonlinear electrodynamics is presented.
I. Radinschi +4 more
doaj +1 more source
Radial positive solutions for a nonpositone problem in a ball
Electronic Journal of Differential Equations, 2009 Summary: We study the existence of radial positive solutions for a nonpositone problem when the nonlinearity is superlinear and may have more than one zero.
Said Hakimi, Abderrahim Zertiti
openaire +2 more sources
Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source
Point rupture solutions of a singular elliptic equation
Electronic Journal of Differential Equations, 2013 We consider the elliptic equation $$ Delta u=f(u) $$ in a region $Omegasubsetmathbb{R}^2$, where f is a positive continuous function satisfying $$ lim_{uo 0^{+}}f(u) =infty. $$ Motivated by the thin film equations, a solution $u$ is said to be a
Huiqiang Jiang, Attou Miloua
doaj