Results 51 to 60 of about 1,741 (182)
The Future of NURBS in CAD: Trends and Innovations [PDF]
MATEC Web of ConferencesNon-Uniform Rational B-Splines (NURBS) remain central to CAD. Their key strength lies in precision, especially for modeling intricate curves and surfaces. Engineers continue to rely on them. Yet technology advances.
Outaybi Hajar +2 more
doaj +1 more source
Improving non-uniform rational B-splines' knot removal with particle swarm optimization
, 2009 Data reduction and shape accuracy are two things that come in mind when it comes to computer graphics research. One such algorithm used is Non-Uniform Rational B-splines (NURBS).
Siti Mariyam Shamsuddin +6 more
core +1 more source
Simulating and correcting the pileup effect in deep‐silicon photon‐counting CT
Medical Physics, Volume 52, Issue 8, August 2025.Abstract Background Photon‐counting computed tomography (CT) bears promise to substantially improve spectral and spatial resolution. One reason for the relatively slow evolution of photon‐counting detectors in CT—the technology has been used in nuclear medicine and planar radiology for decades—is pulse pileup, that is, the random staggering of pulses ...
Erik Fredenberg +5 more
wiley +1 more source
Designing optical devices based on non-uniform rational Béziers splines
, 2014 Optical system design has a significant impact on solar power plant efficiency. It can be advantageous to be able to very precisely adapt mirror shapes in order to improve energy yield. In this article it is investigated whether it is feasible to use non-
Teufel, Edgar
core +1 more source
Structural Concrete, Volume 26, Issue 4, Page 4083-4102, August 2025.Abstract The structural design of prestressed concrete girders in beam bridges is performed by coupling 3D parametric modeling, optimization, and statistical techniques, structural analysis, and design. The objective is to explore the potential and advantages of advanced design methodologies based on intelligent design.
Vinicius Nascimento de Moraes +1 more
wiley +1 more source
Simulation of flow through dam foundation by isogeometric method
Engineering Science and Technology, an International Journal, 2015 This research introduces a numerical approach called IsoGeometric Analysis (IGA) to solve the Laplace equation. Non-Uniform Rational B-Splines (NURBS) basis function is applied for approximation of the anisotropic saturated porous media of dam foundation
Mehrdad Shahrbanozadeh +2 more
doaj +1 more source
A GEOMETRIC PROCESSING WORKFLOW FOR TRANSFORMING REALITY-BASED 3D MODELS IN VOLUMETRIC MESHES SUITABLE FOR FEA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Conservation of Cultural Heritage is a key issue and structural changes and damages can influence the mechanical behaviour of artefacts and buildings. The use of Finite Elements Methods (FEM) for mechanical analysis is largely used in modelling stress ...
S. Gonizzi Barsanti, G. Guidi
doaj +1 more source
Journal of Applied Clinical Medical Physics, Volume 26, Issue 7, July 2025.Abstract Purpose To provide insight into appearance of local distortion as a pitfall and to assess performance of MLEM reconstruction in presence of a high‐contrast object or hot spot and to quantify extent of involvement, specifically in myocardial perfusion imaging. Methods A checkerboard image is reconstructed with MLEM with and without the presence
Mohsen Qutbi
wiley +1 more source
Shape Sensitivity Analysis of History‐Dependent Materials for Dynamic Structures
Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 1, March 2025.ABSTRACT This work presents a sensitivity analysis of inelastic material behavior within dynamic structures. The primary focus is on using the direct differentiation method to derive sensitivity matrices for displacement, velocity, acceleration, and history variables. These methods are validated through a detailed academic example.
Seyed Ali Ghasemi +1 more
wiley +1 more source
Curves defined by a class of discrete operators: Approximation result and applications
Mathematical Methods in the Applied Sciences, Volume 48, Issue 2, Page 2388-2403, 30 January 2025.In approximation theory, classical discrete operators, like generalized sampling, Szász‐Mirak'jan, Baskakov, and Bernstein operators, have been extensively studied for scalar functions. In this paper, we look at the approximation of curves by a class of discrete operators, and we exhibit graphical examples concerning several cases. The topic has useful
Rosario Corso, Gabriele Gucciardi
wiley +1 more source