Results 1 to 10 of about 656 (108)

Recent improvements in Hurricane Imaging Radiometer’s brightness temperature image reconstruction

open access: yesResults in Physics, 2017
NASA MSFCs airborne Hurricane Imaging Radiometer (HIRAD) uses interferometric aperture synthesis to produce high resolution wide swath images of scene brightness temperature (Tb) distribution at four discrete C-band microwave frequencies (4.0, 5.0, 6.0 ...
Sayak K. Biswas, Daniel J. Cecil
doaj   +1 more source

B-spline curve theory: An overview and applications in real life

open access: yesNonlinear Engineering
This study commences by delving into B-spline curves, their essential properties, and their practical implementations in the real world. It also examines the role of knot vectors, control points, and de Boor’s algorithm in creating an elegant and ...
Hasan Md. Shahid   +4 more
doaj   +1 more source

Towards a More General Type of Univariate Constrained Interpolation With Fractal Splines

open access: yes, 2015
Recently, in [Electronic Transaction on Numerical Analysis, 41 (2014), pp. 420-442] authors introduced a new class of rational cubic fractal interpolation functions with linear denominators via fractal perturbation of traditional nonrecursive rational ...
Chand, A. K. B.   +2 more
core   +1 more source

A theoretical study on resistance of electrolytic solution: Measurement of electrolytic conductivity

open access: yesResults in Physics, 2019
We propose a theoretical approach to determine the conductivity of electrolytic solution using sine waveform voltage as a triggering signal. The approach is based on the acquisition of the complex impedance in two-electrode conductance cell by analyzing ...
Liyue Su, Xiaodong Liao, Zheng Huang
doaj   +1 more source

Spectral collocation method for convection-diffusion equation

open access: yesDemonstratio Mathematica
Spectral collocation method, named linear barycentric rational interpolation collocation method (LBRICM), for convection-diffusion (C-D) equation with constant coefficient is considered.
Li Jin, Cheng Yongling
doaj   +1 more source

From approximating to interpolatory non-stationary subdivision schemes with the same generation properties

open access: yes, 2010
In this paper we describe a general, computationally feasible strategy to deduce a family of interpolatory non-stationary subdivision schemes from a symmetric non-stationary, non-interpolatory one satisfying quite mild assumptions. To achieve this result
Conti, Costanza   +2 more
core   +1 more source

Compactly supported radial basis functions: how and why? [PDF]

open access: yes, 2012
The use of radial basis functions have attracted increasing attention in recent years as an elegant scheme for high-dimensional scattered data approximation, an accepted method for machine learning, one of the foundations of mesh-free methods, an ...
Zhu, S.
core   +3 more sources

Extremal Polynomials and Entire Functions of Exponential Type

open access: yes, 2018
In this paper, we discuss asymptotic relations for the approximation of $\left\vert x\right\vert ^{\alpha},\alpha>0$ in $L_{\infty}\left[ -1,1\right] $ by Lagrange interpolation polynomials based on the zeros of the Chebyshev polynomials of first kind ...
Revers, Michael
core   +1 more source

An extended Prony’s interpolation scheme on an equispaced grid

open access: yesOpen Mathematics, 2015
An interpolation scheme on an equispaced grid based on the concept of the minimal order of the linear recurrent sequence is proposed in this paper.
Karalienė Dovile   +3 more
doaj   +1 more source

Order regularity for Birkhoff interpolation with lacunary polynomials [PDF]

open access: yes, 2011
In this short paper we present sufficient conditions for the order regularity problem in Birkhoff interpolation with lacunary polynomials. These conditions are a generalization of the Atkinson-Sharma theorem.Peer ReviewedPostprint (published ...
Díaz Barrero, José Luis   +3 more
core   +1 more source

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