Results 81 to 90 of about 199,828 (311)

Application of enthalpy method for moving boundary problem in laser surface melting

, 1999
A numerical analysis was carried out to study the moving boundary problem in the physical process of pulsed Nd-YAG laser surface melting prior to vaporization.
王会才, 洪友士
core  

A free boundary problem for a diffusion–convection equation [PDF]

, 2020
One-dimensional free boundary problem for a nonlinear diffusion - convection equation with a Dirichlet condition at fixed face x=0, variable in time, is considered. Throught several transformations the problem is reduced to a free boundary problem for a
Briozzo, Adriana Clotilde, Tarzia, Domingo Alberto   +1 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

A hyperbolic free boundary problem existence uniqueness and discretization

, 1982
A hyperbolic free boundary problem : existence, uniqueness, and discretization. - In: Numerical functional analysis and optimization. 5. 1982. S.
Brokate, Martin
core   +1 more source

A free boundary problem-in time-for the spread of Covid-19. [PDF]

J Math Biol, 2023
Luckhaus S, Stevens A.
europepmc   +1 more source

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

Advanced 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, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Boundary Problem Brings Neighbor Powwow

, 1955
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Boundary Problem Brings Neighbor Powwow -- A Neighborhood parley develops a lively discussion of the school boundary line ...

core  

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

Advanced 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, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

A discrete free boundary problem

, 2015
We study the free boundary problem in a nonstandard setting of infinitesimal discretisations of the heat equation. In particular we derive regularity results of solutions and the free boundary, in terms of S-continuity and S ...
van den Berg, Imme
core  

Can Relational Egalitarians Supply Both an Account of Justice and an Account of the Value of Democracy or Must They Choose Which?

Ergo, An Open Access Journal of Philosophy
Construed as a theory of justice, relational egalitarianism says that justice requires that people relate as equals. Construed as a theory of what makes democracy valuable, it says that democracy is a necessary, or constituent, part of the value of ...
Andreas Bengtson, Kasper Lippert-Rasmussen   +1 more
doaj   +2 more sources