Results 111 to 120 of about 283,896 (317)

Time‐Domain Geoelectrical Modeling and Experimental Validation of Ground Potential Rise in Multilayer Soil Structures during Fault Events

Energy Science &Engineering, EarlyView.
This study develops a time‐domain geoelectrical model of ground potential rise (GPR) in multilayer soil that couples electromagnetic field theory with nonlinear fault arc resistance. Finite‐element simulations calibrated against scaled fault‐injection experiments reproduce measured GPR and step/touch voltages within 4.7% error, revealing that steady ...
Wulfran Fendzi Mbasso, Ambe Harrison, Idriss Dagal, Mohamed Metwally Mahmoud, Kenfack Saatong Tsobze, Pradeep Jangir, Muhammad Suhail Shaikh, Aseel Smerat   +7 more
wiley   +1 more source

Symmetry theorems via the continuous steiner symmetrization

Electronic Journal of Differential Equations, 2000
Using a new approach due to F. Brock called the Steiner symmetrization, we show first that if $u$ is a solution of an overdetermined problem in the divergence form satisfying the Neumann and non-constant Dirichlet boundary conditions, then $Omega$ is an ...
L. Ragoub
doaj  

Theoretical Model of Transient Regression of Thermoplastic Materials During Flame Spread: Vaporization; Permanent Mass Loss; Surface Shape

Fire and Materials, EarlyView.
ABSTRACT This article examines a transient, one‐dimensional model of surface regression during opposed flow flame spread over finite thickness, non‐charring thermoplastics. Gas to solid conductive transfer from the flame drives sample heating. The solid degrades into volatile fuel molecules in two stages: (1) the pre‐vaporization heat‐up stage and (2 ...
Indrek S. Wichman, Linwei Mou, Sarzina Hossain, Fletcher J. Miller, Sandra L. Olson   +4 more
wiley   +1 more source

Dirichlet boundary condition for the Ginzburg-Landau equations

, 2013
As is well known, the Ginzburg Landau phenomenological theory described with a good accuracy the thermodynamic properties of a superconducting material.
J. Barba-Ortega, J. Barón-Jaimez, M. Joya   +2 more
semanticscholar   +1 more source

Reflective Pathways: Integrating Empathy Into the STEM Student Experiences

Future in Educational Research, EarlyView.
ABSTRACT The growing demand for a globally competent STEM workforce showcases the importance of embedding empathy into undergraduate education. As a core dimension of global competence, empathy enables individuals to engage diverse perspectives and navigate collaborative challenges.
Aparajita Jaiswal, Nathan S. Bitner, Gaurav Nanda, Muna Sapkota   +3 more
wiley   +1 more source

Wentzell boundary conditions in the context of Dirichlet forms

Advances in Differential Equations, 2003
For the formal elliptic expression \(L=\nabla a\nabla\) on \(\Omega\subset{\mathbb R}^d\) with Wentzell boundary condition \(-\alpha Au +n\cdot a\nabla u +\gamma u=0\) on \(\Sigma\subset\Omega\) and Dirichlet boundary condition on \(\Omega\backslash\Sigma\) (\(\alpha,\gamma\) are suitable functions, \(n\) is the outward normal), the authors prove that ...
Vogt, Hendrik, Voigt, Jürgen
openaire   +3 more sources

Application of High‐Order Direct Flux Reconstruction and Stiffness‐Resilient Time Integration to Simulations of Idealized Atmospheric Flows

International Journal for Numerical Methods in Fluids, EarlyView.
The proposed work implements a direct flux reconstruction method for spatial discretization and a stiffness‐resilient exponential time integration method for temporal discretization on the cube‐sphere grid. A space‐time tensor formalism is employed to provide a general representation in any curvilinear coordinate system. This combination enables highly
Stéphane Gaudreault, Christopher Subich, Shoyon Panday, Martin Charron, Vincent Magnoux, Valentin Dallerit, Mayya Tokman   +6 more
wiley   +1 more source

On weak (measure valued)–strong uniqueness for Navier–Stokes–Fourier system with Dirichlet boundary condition [PDF]

, 2023
Nilasis Chaudhuri
openalex   +1 more source

Nonlocal problems with local Dirichlet and Neumann boundary conditions

Journal of Mechanics of Materials and Structures, 2017
We present novel governing operators in the theory of peridynamics (PD) which will allow the extension of PD to applications that require local boundary conditions (BC). Due to its nonlocal nature, the original PD governing operator uses nonlocal BC. The novel operators agree with the original PD operator in the bulk of the domain and simultaneously ...
Aksoylu, Burak, Celiker, Fatih
openaire   +2 more sources

EVSS‐Based Simulation Techniques for the Viscoelastic Fluids With Pure Polymer Melts Using Three‐Field Approach

International Journal for Numerical Methods in Fluids, EarlyView.
This paper presents a finite element method for simulating highly viscoelastic flows of pure polymer melts using the Elastic Viscous Stress Splitting formulation. The method avoids higher‐order derivatives in the weak formulation by reformulating the convective term in the constitutive equation.
R. Ahmad, P. Zajac, S. Turek
wiley   +1 more source