Results 51 to 60 of about 4,091,598 (363)

Exact asymptotics of the uniform error of interpolation by multilinear splines [PDF]

open access: yes, 2010
The question of adaptive mesh generation for approximation by splines has been studied for a number of years by various authors. The results have numerous applications in computational and discrete geometry, computer aided geometric design, finite ...
Babenko, Yuliya
core   +2 more sources

Provably good mesh generation

open access: yesJournal of Computer and System Sciences, 1994
We study several versions of the problem of generating triangular meshes for finite element methods. We show how to triangulate a planar point set or polygonally bounded domain with triangles of bounded aspect ratio; how to triangulate a planar point set with triangles having no obtuse angles; how to triangulate a point set in arbitrary dimension with ...
John R. Gilbert   +2 more
openaire   +2 more sources

Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis

open access: yesAlgorithms, 2021
This paper presents an algorithm for the fully automatic mesh generation for the finite element analysis of ships and offshore structures. The quality requirements on the mesh generator are imposed by the acceptance criteria of the classification ...
Luka Grubišić   +2 more
doaj   +1 more source

Analysis of Hydrostatic Bearings Based on a Unstructured Meshing Scheme and Turbulence Model

open access: yesMachines, 2022
Guideway hydrostatic bearings with the function of supporting and moving loads are a key component of ultra-precision heavy-duty machine tools. Because the dimension difference between the oil gap and the overall structure is great, it is difficult to ...
Yingjie Wang, Hao Wu, Youmin Rong
doaj   +1 more source

Improving mesh generation in finite element analysis for functional morphology approaches

open access: yes, 2020
Finite Element Analysis (FEA) is a powerful tool for functional morphology purposes. The accuracy of the final results depends on the mesh generation and the quality of the mesh.
J. Nogué   +3 more
semanticscholar   +1 more source

Performance and Optimization Abstractions for Large Scale Heterogeneous Systems in the Cactus/Chemora Framework [PDF]

open access: yes, 2013
We describe a set of lower-level abstractions to improve performance on modern large scale heterogeneous systems. These provide portable access to system- and hardware-dependent features, automatically apply dynamic optimizations at run time, and target ...
Schnetter, Erik
core   +1 more source

New Method to Recover Activation Energy: Application to Copper Oxidation

open access: yesMetals
The calculation of the activation energy helps to understand and to identify the underlying phenomenon of oxidation. We propose a new method without any a priori hypothesis on the oxidation law, to retrieve the activation energy of partially and totally ...
Dominique Barchiesi, Thomas Grosges
doaj   +1 more source

Linear geometric algebra rotor estimator for efficient mesh deformation

open access: yesIET Cyber-systems and Robotics, 2020
The authors solve the problem of estimating the best rotation aligning two sets of corresponding vectors (also known as Wahba's problem or point cloud registration).
Jin Wu   +3 more
doaj   +1 more source

Voxel2Mesh: 3D Mesh Model Generation from Volumetric Data [PDF]

open access: yesInternational Conference on Medical Image Computing and Computer-Assisted Intervention, 2019
CNN-based volumetric methods that label individual voxels now dominate the field of biomedical segmentation. However, 3D surface representations are often required for proper analysis.
Udaranga Wickramasinghe   +3 more
semanticscholar   +1 more source

Shrinking tube mesh: combined mesh generation and smoothing for pathologic vessels

open access: yesCurrent Directions in Biomedical Engineering, 2020
We present a mesh generation algorithm which is able to produce smooth meshes from point clouds derived from histological slices. In this work, the shrinking tube mesh generation is used on histologic images depicting pathologic vessels.
Niemann Annika   +2 more
doaj   +1 more source

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