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Study on the Piecewise Inverse Model of Accumulated Temperature Based on Skewness-Distribution Parameters of Canopy Images in Pepper

open access: yesAtmosphere, 2022
The crop leaf color is tightly connected with its meteorological environment. Color gradation skewness-distribution (CGSD) parameters can describe the information of leaf color more accurately, systematically, and comprehensively from five dimensions. We
Pei Zhang   +9 more
doaj   +1 more source

Rossler’s system using piecewise derivative

open access: yesResults in Physics, 2023
This article deals with a piecewise system named piecewise Rossler’s system which exhibits a concept of piecewise derivatives based on Classical-power-law randomness, Classical Mittag-Leffler-law-randomness, and Classical fading memory randomness ...
Atul Kumar
doaj   +1 more source

Prediction of limit cycle oscillations in piecewise linear systems with multiple piecewise nonlinearities

open access: yesIET Control Theory & Applications, 2021
Mathematical modelings of many electric and mechanical systems involve piecewise linear system. Piecewise linear system can possess a periodic solution called a limit‐cycle oscillation (LCO), which can seriously undermine the system performance ...
Yongeun Yoon, Eric N Johnson
doaj   +1 more source

Borel-piecewise continuous reducibility for uniformization problems [PDF]

open access: yesLogical Methods in Computer Science, 2017
We study a fine hierarchy of Borel-piecewise continuous functions, especially, between closed-piecewise continuity and $G_\delta$-piecewise continuity. Our aim is to understand how a priority argument in computability theory is connected to the notion of
Takayuki Kihara
doaj   +1 more source

A numerical study of dengue internal transmission model with fractional piecewise derivative

open access: yesResults in Physics, 2022
The goal of this paper is to study the dynamics of the dengue internal transmission model using a novel piecewise derivative approach in the sense of singular and non-singular kernels.
Shabir Ahmad   +5 more
doaj   +1 more source

A Proximal–Based Algorithm for Piecewise Sparse Approximation with Application to Scattered Data Fitting

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2022
In some applications, there are signals with a piecewise structure to be recovered. In this paper, we propose a piecewise sparse approximation model and a piecewise proximal gradient method (JPGA) which aim to approximate piecewise signals.
Zhong Yijun   +3 more
doaj   +1 more source

Orthonormal piecewise Vieta-Lucas functions for the numerical solution of the one- and two-dimensional piecewise fractional Galilei invariant advection-diffusion equations

open access: yesJournal of Advanced Research, 2023
Introduction: Recently, a new family of fractional derivatives called the piecewise fractional derivatives has been introduced, arguing that for some problems, each of the classical fractional derivatives may not be able to provide an accurate statement ...
Mohammad Hossein Heydari   +2 more
doaj   +1 more source

Usage of Selected Swarm Intelligence Algorithms for Piecewise Linearization

open access: yesMathematics, 2022
The paper introduces a new approach to enhance optimization algorithms when solving the piecewise linearization problem of a given function. Eight swarm intelligence algorithms were selected to be experimentally compared.
Nicole Škorupová   +2 more
doaj   +1 more source

Adaptive Piecewise Poly-Sinc Methods for Ordinary Differential Equations

open access: yesAlgorithms, 2022
We propose a new method of adaptive piecewise approximation based on Sinc points for ordinary differential equations. The adaptive method is a piecewise collocation method which utilizes Poly-Sinc interpolation to reach a preset level of accuracy for the
Omar Khalil   +3 more
doaj   +1 more source

Numerical Solution of Higher Index Nonlinear Integral Algebraic Equations of Hessenberg Type Using Discontinuous Collocation Methods

open access: yesMathematical Modelling and Analysis, 2014
In this paper, we deal with a system of linear and nonlinear integral algebraic equations (IAEs) of Hessenberg type. Convergence analysis of the discontinuous collocation methods is investigated for the large class of IAEs based on the new definitions ...
Babak Shiri
doaj   +1 more source

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