Results 11 to 20 of about 9,001 (205)

Modified recurrent equation-based cubic spline interpolation for missing data recovery in phasor measurement unit (PMU) [version 3; peer review: 2 approved, 1 not approved] [PDF]

open access: yesF1000Research, 2023
Background Smart grid systems require high-quality Phasor Measurement Unit (PMU) data for proper operation, control, and decision-making. Missing PMU data may lead to improper actions or even blackouts.
Timothy Tzen Vun Yap   +2 more
doaj   +2 more sources

Interpolation of natural cubic spline [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
From the result in [1] it follows that there is a unique quadratic spline which bounds the same area as that of the function. The matching of the area for the cubic spline does not follow from the corresponding result proved in [2].
Arun Kumar, L. K. Govil
doaj   +3 more sources

Image interpolation by rational ball cubic B-spline representation and genetic algorithm

open access: yesAEJ - Alexandria Engineering Journal, 2018
In this article a rational ball cubic B-spline representation based image interpolation scheme is proposed with tension parameter to interpolate two dimensional natural images.
Samreen Abbas   +2 more
exaly   +3 more sources

Three-Dimensional Array Interpolation Imaging Algorithm of Water Holdup by the Capacitance Array Tool of Oil–Water Two-Phase Flow in Horizontal Wells [PDF]

open access: yesSensors
Due to the gravitational differentiation effect, the oil–water two-phase flow in the horizontal well exhibits significant asymmetry and inhomogeneity in terms of phase distribution and velocity field.
Doujuan Zhang   +9 more
doaj   +2 more sources

Cubic and quintic spline-on-spline interpolation

open access: yesJournal of Computational and Applied Mathematics, 1987
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
N Papamichael
exaly   +3 more sources

Cubic-spline interpolation to estimate effects of inbreeding on milk yield in first lactation Holstein cows [PDF]

open access: yesGenetics and Molecular Biology, 2011
Milk yield records (305d, 2X, actual milk yield) of 123,639 registered first lactation Holstein cows were used to compare linear regression (y = β0 + β1X + e) ,quadratic regression, (y = β0 + β1X + β2X2 + e) cubic regression (y =
Makram J. Geha   +2 more
doaj   +2 more sources

Numerical Solution of Saint-Venant Equation by Cubic B-spline Quasi-interpolation [PDF]

open access: yesJisuanji kexue, 2023
Firstly,the error estimates of cubic spline quasi-intepolating operators are derived for continuous differential function with different orders.Secondly,cubic B-spline quasi-interpolation is used to get the numerical solution of Saint-Venant equation ...
QIAN Jiang, ZHANG Ding
doaj   +1 more source

A Scheme for Estimating Time-Varying Wind Stress Drag Coefficient in the Ekman Model with Adjoint Assimilation

open access: yesJournal of Marine Science and Engineering, 2021
In this study, the time-varying wind stress drag coefficient in the Ekman model was inverted by the cubic spline interpolation scheme based on the adjoint method.
Xinping Wu   +3 more
doaj   +1 more source

Stretch-Energy-Minimizing B-Spline Interpolation Curves and Their Applications

open access: yesMathematics, 2023
In this paper, we propose a new method to construct energy-minimizing cubic B-spline interpolation curves by minimizing the approximated stretch energy. The construction of a B-spline interpolation curve with a minimal approximated stretch energy can be ...
Qian Ni, Chen Xie
doaj   +1 more source

Trajectory Planning of Autonomous Underwater Vehicles Based on Gauss Pseudospectral Method

open access: yesSensors, 2023
This paper aims to address the obstacle avoidance problem of autonomous underwater vehicles (AUVs) in complex environments by proposing a trajectory planning method based on the Gauss pseudospectral method (GPM).
Wenyang Gan, Lixia Su, Zhenzhong Chu
doaj   +1 more source

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