Results 51 to 60 of about 1,193 (178)

Physics‐Driven Deep Neural Networks for Solving the Optimal Transport Problem Associated With the Monge–Ampère Equation

CAAI Transactions on Intelligence Technology, Volume 11, Issue 1, Page 15-25, February 2026.
ABSTRACT Monge–Ampère equations (MAEs) are fully nonlinear second‐order partial differential equations (PDEs), which are closely related to various fields including optimal transport (OT) theory, geometrical optics and affine geometry. Despite their significance, MAEs are extremely challenging to solve.
Xinghua Pan, Zexin Feng, Kang Yang
wiley   +1 more source

An Algorithm for Total Variation Inpainting Based on Nonlinear Multi-Grid Methods

Journal of Algorithms & Computational Technology, 2008
Image inpainting refers to restoring a damaged image with missing information. The total variation (TV) inpainting model is one such method that simultaneously fills in the regions with available information from their surroundings and eliminates noises.
Chen Fei, Wang Mei-Qing, Lai Choi-Hong
doaj   +1 more source

On the Rotation‐Induced Pressure‐Strain Correlation in Rotating Boundary Layer Flows

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Rotation is a fundamental feature of many weather systems. The pressure‐strain correlation plays an important role in the Reynolds stress budget. However, the behavior of the pressure‐strain correlation under rotation remains insufficiently explored. This study develops a closure model for the rotation‐induced pressure‐strain correlation.
Xin Shao, Ning Zhang
wiley   +1 more source

Classification of Hyperspectral Images by SVM Using a Composite Kernel by Employing Spectral, Spatial and Hierarchical Structure Information

Remote Sensing, 2018
In this paper, we introduce a novel classification framework for hyperspectral images (HSIs) by jointly employing spectral, spatial, and hierarchical structure information.
Yi Wang, Hexiang Duan
doaj   +1 more source

Determining the Geometrical Sizes of Plates with Internal Hinges by Using Additional Conditions

Advances in Mathematical Physics, 2020
For a system obtained by placing more than two elastic plates side by side, the transmission conditions are obtained at the common boundaries. Finite difference equations are developed for the problem of plates with internal hinges and applied for ...
Vildan Yazıcı, Zahir Muradoğlu
doaj   +1 more source

Effects of Triangular Nozzle Geometry on the Deformation and Breakup of Liquid Jets in Crossflow

Chemical Engineering &Technology, Volume 49, Issue 1, January 2026.
This study numerically investigates the deformation and breakup of liquid jets in air crossflow from triangular and circular nozzles using Newtonian and shear‐thinning fluids. The analysis highlights how non‐circular geometry and rheology jointly govern jet instability through variations in viscosity, pressure, and energy transfer. The findings advance
Yasuhiro Saito, Shota Nakashima, Ayuki Minami   +2 more
wiley   +1 more source

A parallelizable method for two-dimensional wave propagation using subdomains in time with Multigrid and Waveform Relaxation

Acta Scientiarum: Technology
In this paper we compare the implicit schemes for the solution of the two-dimensional wave equation using Singlegrid and Multigrid methods. The discretization is performed using the Finite Difference Method, weighted in time by an established parameter.
Maicon Felipe Malacarne, Márcio Augusto Villela Pinto, Sebastião Romero Franco   +2 more
doaj   +1 more source

Specific Reaction Parameter Multigrid POTFIT (SRP-MGPF): Automatic Generation of Sum-of-Products Form Potential Energy Surfaces for Quantum Dynamical Calculations

Frontiers in Chemistry, 2019
We present Specific Reaction Parameter Multigrid POTFIT (SRP-MGPF), an automated methodology for the generation of global potential energy surfaces (PES), molecular properties surfaces, e.g., dipole, polarizabilities, etc.
Ramón L. Panadés-Barrueta, Emilio Martínez-Núñez, Daniel Peláez   +2 more
doaj   +1 more source

A regional implementation of a mixed finite‐element, semi‐implicit dynamical core

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
A regional version of a new dynamical core with an iterated semi‐implicit time discretisation and mixed finite‐element spatial discretisation is described. This involves modifying the mixed‐system and Helmholtz‐preconditioner equations to use lateral boundary condition (LBC) data specified by a driving model.
Christine Johnson, Ben Shipway, Thomas Melvin, Thomas Bendall, James Kent, Ian Boutle, Alex Brown, Mohamed Zerroukat, Benjamin Buchenau, Nigel Wood   +9 more
wiley   +1 more source

Finite-difference analysis for the linear thermoporoelasticity problem and its numerical resolution by multigrid methods

Mathematical Modelling and Analysis, 2012
This paper deals with the numerical solution of a two-dimensional thermoporoelasticity problem using a finite-difference scheme. Two issues are discussed: stability and convergence in discrete energy norms of the finite-difference scheme are proved, and ...
Natalia Boal, Francisco Jos´e Gaspar, Francisco Lisbona, Petr Vabishchevich   +3 more
doaj   +1 more source