Results 21 to 30 of about 29,247 (265)

A Polynomial Splines Identification Method Based on Control Nets

open access: yesComplexity, 2020
In this study, based on Polynomial Splines with control nets, an identification method is investigated. We introduce polynomial splines with control nets defined over T-mesh.
Zhihua Wang, Hongmei Kang
doaj   +1 more source

Applying spline-based phase analysis to macroeconomic dynamics

open access: yesDependence 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
doaj   +1 more source

Incorporation of Tumor-Free Distance and Other Alternative Ultrasound Biomarkers into a Myometrial Invasion-Based Model Better Predicts Lymph Node Metastasis in Endometrial Cancer: Evidence and Future Prospects

open access: yesDiagnostics, 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
doaj   +1 more source

Truncated T-splines: Fundamentals and methods [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaodong Wei   +3 more
openaire   +2 more sources

Solid Model Generation for Digitized Organic Bodies via T-Splines

open access: yesHeritage, 2020
This paper presents a workflow for B-rep solid model generation of organic objects using T-splines constructed with quad-meshes. The aim is the creation of geometrically and topologically consistent B-rep solid models of heritage objects featuring ...
Luigi Barazzetti
doaj   +1 more source

Linear Independence of T-Spline Blending Functions of Degree One for Isogeometric Analysis

open access: yesMathematics, 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
doaj   +1 more source

Isogeometric analysis using T-splines [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bazilevs, Yuri   +7 more
openaire   +2 more sources

Ισογεωμετρική Στατική Ανάλυση με T-SPLines [PDF]

open access: yes, 2014
Σκοπός αυτής της διπλωματικής είναι η διερεύνηση της ισογεωμετρικής στατικής ανάλυσης χρησιμοποιώντας ΄ενα νέο έιδος συναρτήσεων σχήματος , τις T-SPLines.
Tsapetis, Dimitrios G.   +1 more
core   +1 more source

An efficient data structure for calculation of unstructured T-spline surfaces

open access: yesVisual 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
doaj   +1 more source

Implementation of Wavelet-Transform-Based Algorithms in an FPGA for Heart Rate and RT Interval Automatic Measurements in Real Time: Application in a Long-Term Ambulatory Electrocardiogram Monitor

open access: yesMicromachines, 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
doaj   +1 more source

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