Results 91 to 100 of about 9,215,429 (289)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Strictly convergent algorithm for an elliptic equation with nonlocal and nonlinear boundary conditions

open access: yesMathematical Modelling and Analysis, 2012
The paper describes a formally strictly convergent algorithm for solving a class of elliptic problems with nonlinear and nonlocal boundary conditions, which arise in modeling of the steady-state conductive-radiative heat transfer processes.
Karlis Birgelis, Uldis Raitums
doaj   +1 more source

Attractors for Parabolic Problems with Nonlinear Boundary Conditions

open access: yesJournal of Mathematical Analysis and Applications, 1997
The authors investigate the long time behaviour of solutions of reaction diffusion systems of the following structure: \[ u_t-\text{div}(a(x)\nabla u)+ \sum B_j(x)\partial_ju+ \lambda u+ f(u)=0\text{ in }\Omega,\quad {\partial u\over\partial n_a}+ g(u)=0\text{ on }\partial\Omega.\tag{1} \] Here \(u=(u_1,\dots,u_m)\), \(m\geq 1\), \(a(x)=\text{diag}(a_1(
Carvalho, Alexandre N   +3 more
openaire   +1 more source

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

open access: yesAdvanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic   +2 more
wiley   +1 more source

A mixed problem for semilinear wave equations with acoustic boundary conditions in domains with non-locally reacting boundary

open access: yesElectronic Journal of Differential Equations, 2014
In this article we study the existence, uniqueness and asymptotic stability of solution to the mixed problem for the semilinear wave equation with acoustic boundary conditions in domains with non-locally reacting boundary.
Cicero L. Frota   +2 more
doaj  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Nonlinear stability of the one-domain approach to modelling convection in superposed fluid and porous layers [PDF]

open access: yes, 2010
Studies of the nonlinear stability of fluid/porous systems have been developed very recently. A two-domain modelling approach has been adopted in previous works, but was restricted to specific configurations.
Carr, Magda, Hill, A A
core   +1 more source

Problems with nonlinear boundary value conditions [PDF]

open access: yes, 1992
summary:The existence and multiplicity results are shown for certain types of problems with nonlinear boundary value ...
Fečkan, Michal
core   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

Iterative Analysis of the Unique Positive Solution for a Class of Singular Nonlinear Boundary Value Problems Involving Two Types of Fractional Derivatives with p-Laplacian Operator

open access: yesComplexity, 2019
This article is concerned with a class of singular nonlinear fractional boundary value problems with p-Laplacian operator, which contains Riemann–Liouville fractional derivative and Caputo fractional derivative. The boundary conditions are made up of two
Fang Wang   +3 more
doaj   +1 more source

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