Results 71 to 80 of about 16,167 (158)

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

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

Simulation of Seismic Response of Reinforced Concrete Beam-Column Joints with Nurbs Surface Fitting

open access: yesArchives of Civil Engineering, 2017
This paper presents an approach based on NURBS (non-uniform rational B-splines) to achieve a seismic response surface (SRS) from a group of points obtained by using an analytical model of RC joints.
Mirhosseini R. Tabatabaei
doaj   +1 more source

An experimental study to test a 3D laser Scanner for body measurement and 3D virtual garment design in Fashion education [PDF]

open access: yes, 2005
Artists, scientists, anthropometrists and tailors have accurately measured the human body with traditional tools, such as tape measures, callipers and accumulated visceral experience for centuries. Due to the progressive acceleration in the quality of 3D
Taylor, Andrew, Unver, Ertu
core  

Surface Error Evaluation of Non-circular Bevel Gear of Variable Ratio Differential

open access: yesJixie chuandong, 2017
Based on the data obtained from the three-coordinate measuring and pre-processing,a NURBS method to reconstruct the complex surface of non-circular bevel gear and a two-step matching method to implement the complex surface error evaluation is proposed ...
Xie Xia, Zhang Xiaobao, Jia Jumin
doaj  

Simulation of irregular waves over submerged obstacle on a NURBS potential numerical wave tank

open access: yesLatin American Journal of Solids and Structures
In this paper, a fully non-linear three-dimensional Numerical Wave Tank (NWT) is developed for studying propagation and scattering of non-linear random sea wave over bottom submerged bars.
Arash Abbasnia, Mahmoud Ghiasi
doaj   +1 more source

Shape optimization of a flexible beam with a local shape feature based on ANCF

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
This paper proposes a shape optimization method of local shape features on a flexible beam modeled with the absolute nodal coordinate formulation (ANCF).
Gang HE   +4 more
doaj   +1 more source

Surface Fitting for Quasi Scattered Data from Coordinate Measuring Systems

open access: yesSensors, 2018
Non-uniform rational B-spline (NURBS) surface fitting from data points is wildly used in the fields of computer aided design (CAD), medical imaging, cultural relic representation and object-shape detection.
Qing Mao   +3 more
doaj   +1 more source

Free Vibration Analyses of FGM Thin Plates by Isogeometric Analysis Based on Classical Plate Theory and Physical Neutral Surface

open access: yesAdvances in Mechanical Engineering, 2013
The isogeometric analysis with nonuniform rational B-spline (NURBS) based on the classical plate theory (CPT) is developed for free vibration analyses of functionally graded material (FGM) thin plates.
Shuohui Yin, Tiantang Yu, Peng Liu
doaj   +1 more source

Inverse Relations for Blossoms and Parametrisations of Rational Curves and Surfaces

open access: yesMathematics
In this paper, we make use of an inverse formula that relates the blossom of a NURBS curve, surface or Bézier triangle with its parametrisation, with no explicit reference to the control points and weights of the parametrisation.
Leonardo Fernández-Jambrina
doaj   +1 more source

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