Results 51 to 60 of about 20,661 (163)

SWEEPING SURFACES GENERATED BY A CLASS OF GENERALIZED QUASICUBIC INTERPOLATION SPLINE

open access: yesJournal of Industrial Design and Engineering Graphics, 2012
In this article we will present a method for the model of interpolation sweep surfaces by C^x- continuous generalized quasi-cubic interpolation spline. Once given some key position, orientation and some points which are passed through by the spline and ...
ISTODORESCU Radu
doaj  

Quantitative Analysis of the Effect of an Ectopic Beat on the Heart Rate Variability in the Resting Condition

open access: yesFrontiers in Physiology, 2018
The purpose of this study is to quantitatively analyze the effect of an ectopic beat on heart rate variability (HRV) in the time domain, frequency domain, and in a non-linear analysis.
Ahyoung Choi, Hangsik Shin
doaj   +1 more source

Spline Interpolation and Wavelet Construction

open access: yesApplied and Computational Harmonic Analysis, 1998
The method of Dubuc and Deslauriers on symmetric interpolatory subdivision is extended to study the relationship between interpolation processes and wavelet construction. Refinable and interpolatory functions are constructed in stages from \(B\)-splines.
Lee, S.L., Sharma, A., Tan, H.H.
openaire   +2 more sources

Nonlinear blind source separation algorithm based on spline interpolation and artificial bee colony optimization

open access: yesTongxin xuebao, 2017
A post-nonlinear blind source separation algorithm based on spline interpolation fitting and artificial bee colony optimization was proposed for the more complicated nonlinear mixture situations.The separation model was constructed by using the spline ...
Lei CHEN   +3 more
doaj   +2 more sources

Analysis of stress-strain state of the metal plate based on discrete data of displacement values

open access: yesФізика і хімія твердого тіла
An actual problem of stress-strain state (SSS) analysis of a bent metal plate under an uncertain acting load is solved.  A problem in the direct use of spatial interpolation for obtaining the surface of a metal plate, which is realized in the Surfer ...
E.Y. Ripetskyi   +2 more
doaj   +1 more source

Spline interpolation of demographic data revisited [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2011
Spline functions have been suggested in demographic research for interpolating age-specific data as they have desirablesmoothness optimality properties. However, difficulties arise when boundary conditions need to be satisfied.
Attachai Ueranantasun   +2 more
doaj  

Impact of modified B-splines on particle-in-cell modeling for electron-ion nonlinear dynamics

open access: yesCogent Engineering
The present study explores the impact of implementing a third-order B-spline as a kernel function with random modifications in Particle-In-Cell (PIC) simulations for nonlinear electron-ion dynamics.
Gibran Jalil Garnica-Castro   +3 more
doaj   +1 more source

Shape Preserving Interpolation Using C2 Rational Cubic Spline

open access: yesJournal of Applied Mathematics, 2016
This paper discusses the construction of new C2 rational cubic spline interpolant with cubic numerator and quadratic denominator. The idea has been extended to shape preserving interpolation for positive data using the constructed rational cubic spline ...
Samsul Ariffin Abdul Karim   +1 more
doaj   +1 more source

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