Results 231 to 240 of about 14,134,355 (324)

Minimum Spacetime Length and the Thermodynamics of Spacetime. [PDF]

Entropy (Basel)
Rossi V, Cacciatori SL, Pesci A.
europepmc   +1 more source

Isoperimetric inequalities on slabs with applications to cubes and Gaussian slabs

Communications on Pure and Applied Mathematics, Volume 79, Issue 4, Page 1012-1072, April 2026.
Abstract We study isoperimetric inequalities on “slabs”, namely weighted Riemannian manifolds obtained as the product of the uniform measure on a finite length interval with a codimension‐one base. As our two main applications, we consider the case when the base is the flat torus R2/2Z2$\mathbb {R}^2 / 2 \mathbb {Z}^2$ and the standard Gaussian measure
Emanuel Milman
wiley   +1 more source

An importance sampling vortex particle method for turbulence visualization simulation in maritime simulators. [PDF]

Sci Rep
Zhu T, Ren H, Tao R, Wei D, Xie P.
europepmc   +1 more source

Dual Variational Problems and Action Principles for Chen–Lee and Hopf–Langford Systems

Mathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 2456-2462, 15 March 2026.
ABSTRACT We describe the construction of dual variational principles and action functionals for nonlinear dynamical systems using a methodology based on the dual Lagrange multiplier formalism and a convex optimization approach, to derive families of dual actions that correspond to the given nonlinear ordinary differential system.
A. Ghose‐Choudhury, Partha Guha
wiley   +1 more source

Improving the robustness of the immersed interface method through regularized velocity reconstruction. [PDF]

J Comput Phys
Sun Q, Kolahdouz EM, Griffith BE.
europepmc   +1 more source

Analysis of Turbulent Modeling for Free‐Surface Flows Using a Hybrid RANS‐LES Model and Particle‐Based Moving Particle Semi‐Implicit Method

International Journal for Numerical Methods in Fluids, Volume 98, Issue 3, Page 321-347, March 2026.
A hybrid RANS‐LES turbulence model adapted for the Moving Particle Semi‐implicit method is employed to investigate a turbulent free surface flow. A method based on the cell‐linked list is proposed to speed up the nearest wall search for the turbulence model.
Fabio Kenji Motezuki, Lucas Soares Pereira, Liang‐Yee Cheng, Fernando Akira Kurokawa   +3 more
wiley   +1 more source

LOCAL DIVERGENCE-FREE IMMERSED FINITE ELEMENT-DIFFERENCE METHOD USING COMPOSITE B-SPLINES. [PDF]

Adv Comput Sci Eng
Li L, Gruninger C, Lee JH, Griffith BE.
europepmc   +1 more source

Online Spatiotemporally Constrained Reconstruction for Real‐Time Interactive MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1644-1652, March 2026.
ABSTRACT Purpose To develop a low‐latency dynamic MRI reconstruction that provides better spatial and temporal fidelity than contemporary online reconstruction, for localization. Methods We utilize online spatiotemporally constrained reconstruction (STCR) using a computationally efficient augmented Lagrangian solution and a limited number of iterations
Duc H. Le, Prakash Kumar, Ecrin Yagiz, Ye Tian, Krishna S. Nayak   +4 more
wiley   +1 more source

Cavity expansion theory with state-dependent mohr-coulomb model and its application to cone penetration tests. [PDF]

PLoS One
Li B, Fu S, Feng X, Shen J, Duan B, Pang L.   +5 more
europepmc   +1 more source

Multi‐Frame Image Registration for Automated Ventricular Function Assessment in Single Breath‐Hold Cine MRI Using Limited Labels

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1762-1777, March 2026.
ABSTRACT Purpose This study aims to develop an automated framework for operator‐independent assessment of cardiac ventricular function from highly accelerated images. Methods We introduce a deep learning framework that generates reliable ventricular volumetric parameters and strain measures from fully sampled and retrospectively accelerated MR images ...
Aya Ghoul, Paxstan Cassal Paulson, Andreas Lingg, Patrick Krumm, Kerstin Hammernik, Daniel Rueckert, Sergios Gatidis, Thomas Küstner   +7 more
wiley   +1 more source