Results 61 to 70 of about 1,111,656 (279)

Free boundary on a cone [PDF]

open access: yes, 2013
We study two phase problems posed over a two dimensional cone generated by a smooth curve $\gamma$ on the unit sphere. We show that when $length(\gamma)
Allen, Mark, Lara, Hector Chang
core  

A Singularity-free Boundary Equation Method for Wave Scattering

open access: yes, 2010
Traditional boundary integral methods suffer from the singularity of Green's kernels. The paper develops, for a model problem of 2D scattering as an illustrative example, singularity-free boundary difference equations.
Tsukerman, Igor
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Continuity of the free boundary in elliptic problems with Neuman boundary condition

open access: yesElectronic Journal of Differential Equations, 2015
We show the continuity of the free boundary in a class of two dimensional free boundary problems with Neuman boundary condition, which includes the aluminium electrolysis problem and the heterogeneous dam problem with leaky boundary condition.
Abderachid Saadi
doaj  

Inverse free boundary problems

open access: yesApplied Mathematics Letters, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doví V, Preisig H, PALADINO, OMBRETTA
openaire   +2 more sources

A Free Boundary Problem with Facets [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2018
38 pages, 2 ...
William M. Feldman, Charles K. Smart
openaire   +3 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Numerical solution of a free boundary problem by interchanging dependent and independent variables [PDF]

open access: yes, 1979
The classical problem of seepage of fluid through a porous dam is solved to illustrate a new approach to more general free boundary problems. The numerical method is based on the interchange of the dependent variable, representing velocity potential ...
Crank, J, Ozis, T
core  

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm   +3 more
wiley   +1 more source

Characteristic boundary value problems: estimates from H1 to L2 [PDF]

open access: yes, 2013
Motivated by the study of certain non linear free-boundary value problems for hyperbolic systems of partial differential equations arising in Magneto-Hydrodynamics, in this paper we show that an a priori estimate of the solution to certain boundary value
Morando, Alessandro   +2 more
core  

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