Results 81 to 90 of about 14,416 (204)

The Discretization‐Corrected Particle Strength Method for the Barotropic Vorticity Equations

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 97, Issue 11, Page 1426-1440, November 2025.
Numerical solution for the barotropic vorticity equation in complex geometry using the meshless point collocation method. The spatial domain is represented by a set of nodes. The collocation method numerically solves the strong form governing equations.
G. C. Bourantas   +9 more
wiley   +1 more source

Mathematical Models For Natural Tooth Morphology Representations

open access: yesInternational Dental Journal
Aim or purpose: This study aims to establish unified mathematical models for natural tooth morphology to address challenges in morphological analysis, classification, and simulation due to irregularity and inter-individual variations.
Du Chen, Shen Jiefei
doaj   +1 more source

Domain‐adaptive self‐supervised learning for corrosion detection and 3D building information model mapping in steel tunnels

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 26, Page 4425-4447, 7 November 2025.
Abstract Accurate detection and localization of steel corrosion in tunnel infrastructure remains a major challenge, particularly under conditions of variable lighting, limited accessibility, and visual domain shifts common in real‐world inspection scenarios.
Shreejan Maharjan   +3 more
wiley   +1 more source

The crucial role of meshing in computational fluid dynamics simulations for organic geometries in paleobiology: Describing fluid dynamics performance through best practices

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2170-2194, October 2025.
Abstract Computational fluid dynamics (CFD) has become an essential tool for studying fluid interactions in biological systems. While widely used in engineering, its application in the natural sciences, particularly in paleobiology, remains limited due to the challenges of meshing complex organic geometries.
Matheo López‐Pachón   +1 more
wiley   +1 more source

An Innovative Method to Model Sheet Parts as a Watertight Geometry Based on T-Spline Technology

open access: yesIEEE Access
In sheet part design the product’s initial geometric model is often used between different professional teams. Heavy work relies on the quality of the geometric model, wherein the watertightness of the model’s surfaces is an important ...
Dawei Wang   +5 more
doaj   +1 more source

Isogeometric analysis applied to frictionless large deformation elastoplastic contact [PDF]

open access: yes, 2013
This paper focuses on the application of isogeometric analysis to model frictionless large deformation contact between deformable bodies and rigid surfaces that may be represented by analytical functions. The contact constraints are satisfied exactly with
Kvamsdal, Trond   +3 more
core  

Conversion of trimmed NURBS surfaces to Catmull–Clark subdivision surfaces

open access: yesComputer Aided Geometric Design, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shen, J   +3 more
openaire   +3 more sources

Analysis of Antennas around NURBS Surfaces by Using a Hybrid Method [PDF]

open access: yesRadioengineering, 2018
To fast and accurately calculate the EM scattering problems like radiation of antenna around complex objects, many different techniques have been performed.
T. Okan, N. Akcam
doaj  

Evaluation Algorithms for Parametric Curves and Surfaces

open access: yesMathematics
This paper extends Woźny and Chudy’s linear-complexity Bézier evaluation algorithm (2020) to all parametric curves/surfaces with normalized basis functions via a novel basis function matrix decomposition. The unified framework covers the following: (i) B-
Lanlan Yan
doaj   +1 more source

Three-Dimensional Imaging Technology of Pipelines Based on NURBS Surface

open access: yesShiyou jixie, 2020
Three-dimensional imaging of pipeline is the most intuitive but also the most complicated way to process deformation detection data, and the three-dimensional reconstruction algorithm of surfaces is the key to achieving three-dimensional imaging of ...
Peng He   +4 more
doaj  

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