Results 11 to 20 of about 29,215 (262)
Applying spline-based phase analysis to macroeconomic dynamics
Dependence Modeling, 2022 The article uses spline-based phase analysis to study the dynamics of a time series of low-frequency data on the values of a certain economic indicator. The approach includes two stages. At the first stage, the original series is approximated by a smooth
Lyudmila Gadasina, Lyudmila Vyunenko
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Diagnostics, 2022 Myometrial invasion (MI) is a parameter currently used in transvaginal ultrasound (TVS) in endometrial cancer (EC) to determine local staging; however, without molecular diagnostics, it is insufficient for the selection of high-risk cases, i.e., those ...
Marcin Liro +6 more
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Linear Independence of T-Spline Blending Functions of Degree One for Isogeometric Analysis
Mathematics, 2021 Linear independence of the blending functions is a necessary requirement for T-spline in isogeometric analysis. The main work in this paper focuses on the analysis about T-splines of degree one, we demonstrate that all the blending functions of such T ...
Aizeng Wang +6 more
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An efficient data structure for calculation of unstructured T-spline surfaces
Visual Computing for Industry, Biomedicine, and Art, 2019 To overcome the topological constraints of non-uniform rational B-splines, T-splines have been proposed to define the freeform surfaces. The introduction of T-junctions and extraordinary points makes it possible to represent arbitrarily shaped models by ...
Wei Wang +3 more
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Micromachines, 2023 Cardiovascular diseases are currently the leading cause of death worldwide. Thus, there is a need for non-invasive ambulatory (Holter) ECG monitors with automatic measurements of ECG intervals to evaluate electrocardiographic abnormalities of patients ...
José Alberto García Limón +2 more
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The Analysis of T-spline Fairness [PDF]
Computer-Aided Design and Applications, 2013 AbstractThe fairness of curves and surfaces has been used in the shape design of industrial products more and more widely. With the wide applications of T-splines in the surface modeling, this paper analyzes the fairness of T-splines and gives some fairness properties of standard T-splines and semi-standard T-splines.
Wang Aizeng, Zhao Gang
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Local and Global Approaches to Fracture Mechanics Using Isogeometric Analysis Method
Journal of Applied and Computational Mechanics, 2015 In the present research, implementations of different computational geometry technologies in isogeometric analysis framework for computational fracture mechanics are investigated.
Abdolghafoor Khademalrasoul, Reza Naderi
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Effective T-spline representation for VRML
International Journal of Virtual Reality, 2012 Less control points are needed to represent a shape in T-Splines compared to NURBS and subsequently less time is spent in modeling. While getting more and more accepted by commercial software, T-splines, however, are yet part of VRML/X3D. The T-spline VRML is proposed in this work. An effective data structure is designed for T-splines to support online
Wenyu Chen 0002 +4 more
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On the approximation power of generalized T-splines
Journal of Computational and Applied Mathematics, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cesare Bracco +3 more
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APPROXIMATION BY LOCAL PARABOLIC SPLINES CONSTRUCTED ON THE BASIS OF INTERPOLATION IN THE MEAN
Ural Mathematical Journal, 2017 The paper deals with approximative and form-retaining properties of the local parabolic splines of the form \(S(x)=\sum\limits_j y_j B_2 (x-jh),\) \( (h>0),\) where \(B_2\) is a normalized parabolic spline with the uniform nodes and functionals \(y_j=y_j(
Elena V. Strelkova
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