Results 11 to 20 of about 12,923,099 (288)
A New Class of Trigonometric B-Spline Curves [PDF]
Symmetry, 2023 We construct one-frequency trigonometric spline curves with a de Boor-like algorithm for evaluation and analyze their shape-preserving properties. The convergence to quadratic B-spline curves is also analyzed. A fundamental tool is the concept of the normalized B-basis, which has optimal shape-preserving properties and good symmetric properties.
Gudrun Albrecht +3 more
openaire +4 more sources
The weighted v-spline as a double knot B-spline [PDF]
, 1991 The local support basis representation of the ‘weighted v-spline’ is derived in terms of double knot cubic B-splines, so providing a convenient form for computing and analysing the ...
Gregory, JA, Zhou, J
core +7 more sources
A rational cubic spline with tension [PDF]
, 1989 A rational cubic spline curve is described which has tension control parameters for manipulating the shape of the curve. The spline is presented in both interpolatory and rational B-spline forms, and the behaviour of the resulting representations is ...
Gregory, JA, Sarfraz, M
core +6 more sources
microRNA-7-5p and α-Synuclein SAA Predict Parkinson's Disease Phenoconversion. [PDF]
Ann Clin Transl NeurolABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Zadegan S +4 more
europepmc +2 more sources
Geometric Modeling Using New Cubic Trigonometric B-Spline Functions with Shape Parameter
Mathematics, 2020 Trigonometric B-spline curves with shape parameters are equally important and useful for modeling in Computer-Aided Geometric Design (CAGD) like classical B-spline curves.
Abdul Majeed +5 more
doaj +1 more source
Unified Representation of Curves and Surfaces
Mathematics, 2021 In conventional modeling, shared control points can be employed to realize a unified representation for an object consisting of only curves or only surfaces touching one another.
Aizeng Wang, Gang Zhao, Chuan He
doaj +1 more source
Dynamic Centripetal Parameterization Method for B-Spline Curve Interpolation
IEEE Access, 2020 B-spline data interpolation and approximation require parameterization at the first step. For this purpose, many algorithms have been developed, such as the uniform, centripetal, chord length, Foley and universal methods. The uniform method works well if
Cengiz Balta +3 more
doaj +1 more source
Aerial Target Flight Path Modeling using B-Spline Curves [PDF]
Problemy Mechatroniki, 2018 A method is presented for generating the flight path of an aerial target using B-spline curves developed for studying the combat effectiveness of anti-aircraft missiles and air defense systems.
Witold BUŻANTOWICZ, Bartłomiej BEZUBIK
doaj +1 more source
Construction of Cubic Trigonometric Curves with an Application of Curve Modelling
Mathematics, 2022 This paper introduces new trigonometric basis functions (TBF) in polynomial and rational form with two shape parameters (SPs). Some classical characteristics, such as the partition of unity, positivity, symmetry, CHP, local control and invariance under ...
Abdul Majeed +3 more
doaj +1 more source
Applied Sciences, 2023 Postharvest grain preservation and storage can significantly affect the safety and nutritional value of cereal-based products. Negligence at this stage of the food processing chain can lead to mold development and mycotoxin accumulation, which pose ...
Jolanta Wawrzyniak
doaj +1 more source