Results 41 to 50 of about 1,787 (182)

Parallel Vectors Extraction using Bézier Clipping

Computer Graphics Forum, EarlyView.
Abstract In this paper, we propose a novel local feature extraction algorithm for the parallel vectors (PV) operator. Our method is based on Bézier clipping, which is a bracketing‐based root finding method that is commonly‐used in computer‐aided geometric design.
Nico Daßler, Tobias Günther
wiley   +1 more source

Methods for 3D evaluation and quantification of gingival recessions and gingival margin changes: Advancements from conventional techniques

Periodontology 2000, EarlyView.
Abstract In an era of increasing life expectancy and growing patient demands towards lifelong natural tooth retention, accurate assessment of gingival recessions is crucial for diagnosing periodontal diseases, planning preventive or restorative interventions, and evaluating their outcomes.
Nikolaos Gkantidis, Konstantinos Dritsas, Mohammed Ghamri, Demetrios Halazonetis, Anton Sculean   +4 more
wiley   +1 more source

AUTOMATIC CONSTRUCTION OF NURBS SURFACES FROM UNORGANIZED POINTS

Dyna, 2011
El modelamiento con Superfi cies B-Splines Racionales no Uniformes (NURBS) se ha convertido en un estándar en los sistemas CAD/CAM debido a su estabilidad, fl exibilidad y propiedades de modifi cación local. Las ventajas de ajustar con superfi cies NURBS
NALLIG EDUARDO LEAL NARVÁEZ, ESMEIDE ALBERTO LEAL NARVÁEZ, JOHN WILLIAN BRANCH   +2 more
doaj  

A High-Precision Planar NURBS Interpolation System Based on Segmentation Method for Industrial Robot

Applied Sciences, 2023
NURBS curve parameter interpolation is extensively employed in precision trajectory tasks for industrial robots due to its smoother performance compared to traditional linear or circular interpolation methods.
Xun Liu, Yan Xu, Jiabin Cao, Jinyu Liu, Yanzheng Zhao   +4 more
doaj   +1 more source

Tensor‐Train Compression of a Volume Integral Eddy Current Problem in Discontinuous Galerkin

International Journal for Numerical Methods in Engineering, Volume 127, Issue 21, 15 November 2026.
ABSTRACT The paper presents a low‐rank tensor compression strategy based on the tensor‐train (TT) format for the integral operator arising in eddy current problems. Unlike classical matrix compression techniques such as the fast multipole method (FMM) or hierarchical matrices (ℋ$$ \mathscr{H} $$‐matrices), which typically compress only far‐field ...
Anthony Torosyan, Bertrand Bannwarth, Olivier Chadebec, Jean‐Michel Guichon, Gérard Meunier, Jean‐René Poirier   +5 more
wiley   +1 more source

A locking-free quadratic nurbs-based isogeometric formulation for plates analysis

Ho Chi Minh City Open University Journal of Science - Engineering and Technology, 2012
A new Reissner-Mindlin plate formulation based on a quadratic NURBS-based isogeometric is presented. In order to avoid the transverse shear locking and to improve the accuracy of the present formulation, the quadratic NURBS-based isogeometric is ...
Thai Hoang Chien, Nguyen Xuan Hung, Nguyen Thoi Trung   +2 more
doaj  

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp–Logan

Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2451-2457, November 2026.
ABSTRACT A customizable, dynamic geometric phantom was developed to bridge the gap between simplistic static phantoms and highly realistic, complex 4D solutions. The phantom enables initial testing, helps detect implementation errors, and supports quantitative evaluation of new dynamic acquisition and reconstruction methods.
Tamás Hakkel, Noémi Kovács, József Sinkó, Domokos Máthé, Krisztián Szigeti   +4 more
wiley   +1 more source

Renaissance vaults: geometry, nurbs and computational opportunities for reconstruction

Disegnare con, 2021
Creating an interpretative geometric representation of architectural shapes is crucial to learn the essence of any architecture, to preserve it and to hand it down through the ages to our descendants.
Cecilia Maria Bolognesi, Gabriele Stancato   +1 more
doaj  

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, Volume 16, Issue 39, 21 October 2026.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

On two-field NURBS-based isogeometric formulation for incompressible media problems

Vietnam Journal of Mechanics, 2013
This paper presents u-p mixed formulation relied on the framework of NURBS-based Isogeometric approach (IgA) for incompressible problems. In mixed method, displacement (velocity) field is approximated using NURBS basis functions with one order higher ...
Tran Vinh Loc, Thai Hoang Chien, Nguyen Xuan Hung   +2 more
doaj   +1 more source