Results 111 to 120 of about 3,838,081 (296)

Radial solutions for a nonlinear problem with $p$-Laplacian

Differential and Integral Equations, 1996
This paper concerns nonlinear singular boundary value problems of the type \[ [t^a|y'(t)|^b y'(t)]'= t^a g(t, y(t), y'(t)),\;t\in I= (0, 1], \quad y(1)= 0= \lim_{t\to 0+} y'(t),\tag{1} \] for constants \(a> 0\), \(b> -1\). Under various technical conditions on the function \(g\), the main theorems establish the existence of bounded solutions, positive ...
Dincă, G., Jebelean, P.
openaire   +3 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Influence of the constitutive flow law in FEM simulation of the Radial forging process [PDF]

, 2013
Radial forging is a widely used forming process for manufacturing hollow products in transport industry. As the deformation of the workpiece, during the process, is a consequence of a large number of high-speed strokes, the Johnson-Cook constitutive law (
Gueye, Babacar, Pantalé, Olivier, Babacar Gueye, Olivier Pantalé   +3 more
core   +1 more source

Existence of solutions for sublinear equations on exterior domains

Electronic Journal of Differential Equations, 2018
In this article we consider the radial solutions of $\Delta u + K(r)f(u)= 0$ on the exterior of the ball of radius $R>0$, $B_{R}$, centered at the origin in ${\mathbb R}^N$ with $u=0$ on $\partial B_{R}$ and $\lim_{r \to \infty} u(r)=0$ where $N>2$, $
Joseph A. Iaia
doaj  

Nonexistence of radial entire solutions of elliptic systems

Journal of Differential Equations, 2003
The author considers the quasi-variational ordinary differential system \[ [\nabla G(u,u')]'- \nabla_u G(u,u')+ Q(t, u,u')= f(t,u) \] on \(J= (T,\infty)\), \(T\geq 0\), where \(\nabla= \nabla_u\) denotes the gradient operator with respect to the second variable of the function \(G\).
openaire   +3 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Genetic programming approaches for solving elliptic partial differential equations

, 2008
In this paper, we propose a technique based on genetic programming (GP) for meshfree solution of elliptic partial differential equations. We employ the least-squares collocation principle to define an appropriate objective function, which is optimized ...
Sobester, A., Keane, A.J., Nair, P.B., P.B. Nair, A.J. Keane, A. Sobester   +5 more
core   +1 more source

Radial bounded solutions for modified Schrodinger equations

Electronic Journal of Differential Equations
We study the quasilinear elliptic equation  $$ -\operatorname{div} (a(x,u,\nabla u)) +A_t(x,u,\nabla u) + |u|^{p-2}u =g(x,u) \quad \hbox{in }R^N, $$ with \(N\ge 2\) and \(p > 1\).  Here, \(A : R^N \times  R\times R^N \to R\) is a given  \(C^1\)-Caratheodory function that grows as \(|\xi|^p\) with  \(A_t(x,t,\xi) = \frac{\partial A}{\partial t}(x,t ...
Federica Mennuni, Addolorata Salvatore
openaire   +4 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Visual neglect in horizontal and radial space: When left goes right, proximal goes distal [PDF]

, 2011
Hemi-spatial neglect can manifest in both the horizontal and radial spatial plane. However, debate exists over how closely the two forms of neglect relate. Here we compared the ability of a neglect patient to bisect stimuli in horizontal vs.
Sakel, Mohamed, David Wilkinson, Wilkinson, David T., Mohamed Sakel   +3 more
core   +1 more source