Results 1 to 10 of about 5,254 (164)

Discretization of Non-uniform Rational B-Spline (NURBS) Models for Meshless Isogeometric Analysis [PDF]

Journal of Scientific Computing, 2023
AbstractWe present an algorithm for fast generation of quasi-uniform and variable-spacing nodes on domains whose boundaries are represented as computer-aided design (CAD) models, more specifically non-uniform rational B-splines (NURBS). This new algorithm enables the solution of partial differential equations within the volumes enclosed by these CAD ...
Urban Duh, Varun Shankar, Gregor Kosec
europepmc   +9 more sources

A non-uniform rational B-splines (NURBS) based optimization method for fiber path design

Computer Methods in Applied Mechanics and Engineering
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xuyu Zhang, Yi Min Xie, Cong Wang, He Li, Shiwei Zhou   +4 more
openaire   +3 more sources

Three-dimensional reconstruction of industrial parts from a single image [PDF]

Visual Computing for Industry, Biomedicine, and Art
This study proposes an image-based three-dimensional (3D) vector reconstruction of industrial parts that can generate non-uniform rational B-splines (NURBS) surfaces with high fidelity and flexibility. The contributions of this study include three parts:
Zhenxing Xu, Aizeng Wang, Fei Hou, Gang Zhao   +3 more
doaj   +2 more sources

An explicit and rapid intersection algorithm of plane and NURBS surface in CNC surface machining [PDF]

Scientific Reports
To address the challenge of plane-surface intersection in toolpath planning for CNC surface machining, a rapid intersection algorithm between a plane and a NURBS surface is proposed, which can provide an explicit Non-Uniform Rational B-Spline (NURBS ...
Shengli Wei, Kai Zhao, Huaiping Yan, Yuan Li   +3 more
doaj   +2 more sources

Development of a new metamodelling method based on NURBS (Non-Uniform Rational B-Splines) hypersurfaces

, 2019
Despite undeniable progress achieved in computer sciences over the last decades, some problems remain intractable either by their numerical complexity (optimisation problems, …) or because they are subject to specific constraints such as real-time processing (virtual and augmented reality, …).
Yohann Audoux
openaire   +3 more sources

Flexible control and trajectory planning of medical two-arm surgical robot [PDF]

Frontiers in Neurorobotics
This paper introduces the flexible control and trajectory planning medical two-arm surgical robots, and employs effective collision detection methods to ensure the safety and precision during tasks.
Yanchun Xie, Xue Zhao, Yang Jiang, Yao Wu, Hailong Yu   +4 more
doaj   +2 more sources

Isogeometric modeling and vibroacoustic analysis of a symmetrically laminated thin plate coupled with an acoustic cavity [PDF]

Scientific Reports
This study presents vibroacoustic modeling and analysis of symmetrically laminated thin plate-cavity coupled systems. The plate, cavity, and their coupling are characterized by classical plate theory, the Helmholtz equation, and a displacement–pressure ...
Yaqiang Xue, Chunyu Zhang, Daniel L. Tonouewa, Kangkang Shi   +3 more
doaj   +2 more sources

Automatic Segmentation of Abdominal Aortic Aneurysm From Computed Tomography Angiography Using a Patch-Based Dilated UNet Model [PDF]

IEEE Access
Abdominal Aortic Aneurysm (AAA) is still a socially relevant public health challenge, evidenced by an 82.1% increase in associated fatalities from 1990 to 2019 (with 172,427 deaths in 2019 alone).
Merjulah Roby, Juan C. Restrepo, Haehwan Park, Satish C. Muluk, Mark K. Eskandari, Seungik Baek, Ender A. Finol   +6 more
doaj   +2 more sources

Automatic Explainable Segmentation of Abdominal Aortic Aneurysm From Computed Tomography Angiography [PDF]

IEEE Access
This work presents an automated deep learning (DL) based framework for segmenting abdominal aortic aneurysm (AAA) in contrast-enhanced computed tomography angiography (CTA) images, which was developed to support AAA screening and analysis.
Merjulah Roby, Abu Noman Md Sakib, Zijie Zhang, Satish C. Muluk, Mark K. Eskandari, Ender A. Finol   +5 more
doaj   +2 more sources

Mixed Isogeometric Analysis of the Brinkman Equation

Mathematics, 2023
This study focuses on numerical solution to the Brinkman equation with mixed Dirichlet–Neumann boundary conditions utilizing isogeometric analysis (IGA) based on non-uniform rational B-splines (NURBS) within the Galerkin method framework.
Lahcen El Ouadefli, Omar El Moutea, Abdeslam El Akkad, Ahmed Elkhalfi, Sorin Vlase, Maria Luminița Scutaru   +5 more
doaj   +1 more source