Results 31 to 40 of about 5,863 (112)

High‐speed railway track geometry robust maintenance with Bayesian deep learning‐enhanced physical‐informed neural networks

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 24, Page 3934-3952, 6 October 2025.
Abstract Millimeter‐level active control of track geometry irregularity (TGI) is crucial for intelligent maintenance of high‐speed railways. To address the efficiency limitations of existing time‐domain characteristics‐dominated TGI maintenance scheme design methods and vehicle–track coupled dynamics evaluation models, this paper proposes a new ...
Huakun Sun, Yan Gao, Congyang Xu, Wenhao Ding, Fei Yang, Ping Wang, Qing He   +6 more
wiley   +1 more source

Global and microlocal aspects of Dirac operators: Propagators and Hadamard states

Mathematische Nachrichten, Volume 298, Issue 9, Page 2942-2974, September 2025.
Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
wiley   +1 more source

esys-Escript User’s Guide: Solving Partial Differential Equations with Escript and Finley Release - 3.4.2 (r4925) [PDF]

, 2014
esys.escript is a python-based environment for implementing mathematical models, in particular those based on coupled, non-linear, time-dependent partial differential equations.
Altinay, Cihan, Amirbekyan, Artak, Boros, Vince, Du Plessis, Jaco, Fenwick, Joel, Gharibi, Azadeh Salehi, Graham, Leon, Gross, Lutz, Kettle, Louise M., Muhlhaus, Hans B., Steube, Ken   +10 more
core  

On Integrability and Exact Solvability in Deterministic and Stochastic Laplacian Growth

, 2019
We review applications of theory of classical and quantum integrable systems to the free-boundary problems of fluid mechanics as well as to corresponding problems of statistical mechanics.
Loutsenko, Igor, Yermolayeva, Oksana
core   +1 more source

Quantifying Experimental Impacts on Non‐Newtonian Foam Characterization for Flow Modeling in Porous Media: Insights From Foam‐Quality and Flow Rate Scan Experiments

Water Resources Research, Volume 61, Issue 9, September 2025.
Abstract Foam injection is a prominent technique for mitigating the effects of high gas mobility in porous media for Enhanced Oil Recovery, Carbon Capture, Utilization and Storage and well‐stimulation. Experiments reveal that the foam's apparent viscosity exhibits shear‐thinning behavior, meaning its viscosity decreases with superficial velocity.
Anderson de Moura Ribeiro, Leandro Freitas Lopes, Bernardo Martins Rocha, Rodrigo Weber dos Santos, Juliana Maria da Fonseca Façanha, Aurora Pérez‐Gramatges, Grigori Chapiro   +6 more
wiley   +1 more source

Physics‐Informed Neural Networks for Solving the Two‐Dimensional Shallow Water Equations With Terrain Topography and Rainfall Source Terms

Water Resources Research, Volume 61, Issue 9, September 2025.
Abstract Solving the two‐dimensional Shallow Water Equations (SWE) is a fundamental problem in flood simulation technology. In recent years, physics‐informed neural networks (PINNs) have emerged as a novel methodology for addressing this problem. Given their advantages in parallel computing, potential for data assimilation and parameter calibration ...
Yongfu Tian, Shan Ding, Lida Huang, Guofeng Su, Jianguo Chen   +4 more
wiley   +1 more source

Nonlocal Cooperative Behavior, Psychological Effects, and Collective Decision‐Making: An Exemplification With Predator–Prey Models

Mathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12011-12037, August 2025.
ABSTRACT In bio‐social models, cooperative behavior has evolved as an adaptive strategy, playing multi‐functional roles. One of such roles in populations is to increase the success of the survival and reproduction of individuals and their families or social groups.
Sangeeta Saha, Swadesh Pal, Roderick Melnik   +2 more
wiley   +1 more source

esys-Escript User’s Guide: Solving Partial Differential Equations with Escript and Finley Release - 3.2.1 (r3613) [PDF]

, 2011
esys.escript is a python-based environment for implementing mathematical models, in particular those based on coupled, non-linear, time-dependent partial differential equations.
Amirbekyan, Artak, Cihan Altinay, Gross, Lutz, Kettle, Louise M., Leon Graham, Muhlhaus, Hans B., Steube, Ken   +6 more
core  

Agent-Based and Continuum Models for Spatial Dynamics of Infection by Oncolytic Viruses. [PDF]

Bull Math Biol, 2023
Morselli D, Delitala ME, Frascoli F.
europepmc   +1 more source

2025 ACVIM Forum Research Abstract Program

Journal of Veterinary Internal Medicine, Volume 39, Issue 6, November/December 2025.
wiley   +1 more source