Results 51 to 60 of about 51,831 (339)
Proteins: Structure, Function, and Bioinformatics, EarlyView., 2023 Abstract Among the various factors controlling the amyloid aggregation process, the influences of ions on the aggregation rate and the resulting structures are important aspects to consider, which can be studied by molecular simulations. There is a wide variety of protein force fields and ion models, raising the question of which model to use in such ...
Eva Smorodina +3 more
wiley +1 more source
A new quality preserving polygonal mesh refinement algorithm for Virtual Element Methods [PDF]
arXiv, 2021 Mesh adaptivity is a useful tool for efficient solution to partial differential equations in very complex geometries. In the present paper we discuss the use of polygonal mesh refinement in order to tackle two common issues: first, adaptively refine a provided good quality polygonal mesh preserving quality, second, improve the quality of a coarse poor ...
arxiv
Distance-Sensitive Planar Point Location [PDF]
, 2016 Let $\mathcal{S}$ be a connected planar polygonal subdivision with $n$ edges that we want to preprocess for point-location queries, and where we are given the probability $\gamma_i$ that the query point lies in a polygon $P_i$ of $\mathcal{S}$.
Arya +25 more
core +4 more sources
Applied Sciences, 2020 Mesh quality can affect both the accuracy and efficiency of numerical solutions. This paper first proposes a geometry-based smoothing and untangling method for 2D meshes based on explicit element geometric transformation and element stitching.
Shuli Sun, Zhihong Gou, Mingguang Geng
doaj +1 more source
, 2017 For modeling the 3D world behind 2D images, which 3D representation is most appropriate? A polygon mesh is a promising candidate for its compactness and geometric properties. However, it is not straightforward to model a polygon mesh from 2D images using
Harada, Tatsuya +2 more
core +1 more source
A quadtree-polygon-based scaled boundary finite element method for image-based mesoscale fracture modelling in concrete [PDF]
, 2019 A quadtree-polygon scaled boundary finite element-based approach for image-based modelling of concrete fracture at the mesoscale is developed. Digital images representing the two-phase mesostructure of concrete, which comprises of coarse aggregates and ...
A.A. Saputra +59 more
core +1 more source
Structure-aware Building Mesh Polygonization
ISPRS Journal of Photogrammetry and Remote Sensing, 2020 We introduce a novel approach for the polygonization of Multi-view Stereo (MVS) meshes of buildings, which results in compact and topologically valid models. The main characteristic of our method is structure awareness, i.e., the recovery and preservation of the initial mesh primitives and their adjacencies.
Bouzas, V. (author) +2 more
openaire +4 more sources
Steganography for Three-Dimensional Polygonal Meshes [PDF]
SPIE Proceedings, 2002 This paper proposes a method to embed information into a 3D model represented by a polygonal mesh. The approach used consists in slightly changing the position of the vertices, influencing the length of approximation of the normals to the surface.
Aspert, N. +3 more
openaire +2 more sources
3D Polygon Mesh Compression with Multi Layer Feed Forward Neural Networks [PDF]
Journal of Systemics, Cybernetics and Informatics, 2003 In this paper, an experiment is conducted which proves that multi layer feed forward neural networks are capable of compressing 3D polygon meshes. Our compression method not only preserves the initial accuracy of the represented object but also enhances ...
Emmanouil Piperakis, Itsuo Kumazawa
doaj
An automatic mesh generator for coupled 1D–2D hydrodynamic models [PDF]
Geoscientific Model DevelopmentTwo-dimensional (2D), depth-averaged shallow water equation (SWE) models are routinely used to simulate flooding in coastal areas – areas that often include vast networks of channels and flood-control topographic features and/or structures, such as ...
Y. Kang, E. J. Kubatko
doaj +1 more source