Zobrazeno 1 - 10
of 13 117
pro vyhledávání: '"Level Set method"'
Autor:
Coco Armando, Russo Giovanni
Publikováno v:
Open Mathematics, Vol 22, Iss 1, Pp 464-501 (2024)
In this article, a fourth-order finite-difference ghost-point method for the Poisson equation on regular Cartesian mesh is presented. The method can be considered the high-order extension of the second-order ghost method introduced earlier by the aut
Externí odkaz:
https://doaj.org/article/d21f2106fec14836b6e287e09037da65
Autor:
Natalia Ivanchuk, Vasyl Ivanchuk
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 32, Iss 2, Pp 118-136 (2024)
Mostly motivated by the image segmentation problem and its applications to the extraction of agricultural crop fields from satellite data, we propose a new PDE (partial differential equation) formulation for the piecewise constant approximation of sa
Externí odkaz:
https://doaj.org/article/51714cbec60f42d1a5caf30157823e84
Publikováno v:
Journal of Modern Science, Vol 57, Iss 3, Pp 757-771 (2024)
This work aims to implement and utilize an advanced computer system for image analysis and processing through artificial intelligence. The system will evaluate images from multiple sources. As a result, a comprehensive e-Medicus system will be develo
Externí odkaz:
https://doaj.org/article/80b49f88ebdf4b00a15d7b5a1fb4c98a
Publikováno v:
Heliyon, Vol 10, Iss 21, Pp e40111- (2024)
This research examines different numerical techniques for modeling ferrofluids in a non-magnetic liquid subjected to homogeneous and steady magnetic field. It particularly compares the conservative level set method with the Volume of Fluid (VOF) and
Externí odkaz:
https://doaj.org/article/9fbf978b0ca14382aa168fb5d09f5bb9
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
The paper presents a topology optimization methodology for 2D elastodynamic problems using the boundary element method (BEM). The topological derivative is derived based on the variation method and the adjoint variable method. The level set method is
Externí odkaz:
https://doaj.org/article/f7d3ad9887de4ee5b187e091190c025f
Autor:
HAN Xiao, SONG Zhaojie, LI Peiyu, DENG Sen, SONG Yilei, ZHANG Yunfei, CAO Changxiao, YANG Zhicheng, WU Jiapeng
Publikováno v:
Youqi dizhi yu caishoulu, Vol 31, Iss 1, Pp 63-71 (2024)
The core pore structure of the target shale oil block was finely characterized using scanning electron microscopy， and a microscopic numerical model of the pore-scale core was constructed to elucidate the intrinsic mechanisms and the main controlli
Externí odkaz:
https://doaj.org/article/11c7c2e8aa704eaa8c42ef4b3dd4d89c
Publikováno v:
Fluids, Vol 9, Iss 11, p 264 (2024)
This study investigates the morphology of a free-falling liquid jet by using a computational approach with an experimental validation. Numerical simulations are developed by means of the Finite Element Method (FEM) for solving the viscous fluid flow
Externí odkaz:
https://doaj.org/article/407963db861444a7a956b7efe87af6d6
Publikováno v:
Photonics, Vol 11, Iss 10, p 940 (2024)
Efficient design methods for large-scale metalenses are crucial for various applications. The conventional phase-mapping method shows a weak performance under large phase gradients, thus limiting the efficiency and quality of large-scale, high-numeri
Externí odkaz:
https://doaj.org/article/d18d4f5f7c264a94b0c6e16ed98e98dc
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