Results 71 to 80 of about 39,932 (267)

On anisotropic parabolic equations with a nonlinear convection term depending on the spatial variable

open access: yesAdvances in Difference Equations, 2019
Consider an anisotropic parabolic equation with a nonlinear convection term depending on the spatial variable. If the diffusion coefficients are degenerate, in general, the boundary trace cannot be defined for the weak solution.
Huashui Zhan
doaj   +1 more source

Reaction-diffusion waves with nonlinear boundary conditions

open access: yesNetworks & Heterogeneous Media, 2013
A reaction-di usion equation with nonlinear boundary condition is considered in a two-dimensional in nite strip. Existence of waves in the bistable case is proved by the Leray-Schauder method.
Apreutesei, Narcisa, Volpert, Vitaly
openaire   +2 more sources

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič   +7 more
wiley   +1 more source

Hölder inequality applied on a non-Newtonian fluid equation with a nonlinear convection term and a source term

open access: yesJournal of Inequalities and Applications, 2018
Consider a non-Newtonian fluid equation with a nonlinear convection term and a source term. The existence of the weak solution is proved by Simon’s compactness theorem.
Huashui Zhan
doaj   +1 more source

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

open access: yesAdvanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann   +2 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Open boundary conditions for nonlinear initial boundary value problems

open access: yesJournal of Computational Physics
We present a straightforward energy stable weak implementation procedure of open boundary conditions for nonlinear initial boundary value problems. It simplifies previous work and its practical implementation.
openaire   +4 more sources

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Quasilinear Parabolic Systems with Nonlinear Boundary Conditions

open access: yesJournal of Differential Equations, 2000
Let \(\Omega\) be a smoothly bounded domain in \(\mathbb{R}^n\) with unit outward normal \(\eta\), and let \(M_i> 0\), \(\alpha_i\), and \(m_{ij}\) be nonnegative constants for \(i,j=1,\dots, n\). This paper is considered with the initial-boundary value problem \[ \begin{gathered} \frac {\partial u_i}{\partial t} = \nabla(u_i^{\alpha ^i}\nabla u_i ...
Wang, Shu, Wang, Mingxin, Xie, Chunhong
openaire   +2 more sources

Home - About - Disclaimer - Privacy