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   Articles with "order derivative" as a keyword



Results on Ulam–Hyers stability of nonlinear Chen system with fractional‐order derivative

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recommendations! Published in 2025 at "Asian Journal of Control"

DOI: 10.1002/asjc.3656

Abstract: This article focuses on the stability analysis of fractional‐order derivative for nonlinear Chen chaotic systems using Caputo–Fabrizio fractional derivative. The primary objective is to examine the criteria for existence and uniqueness using the fixed‐point technique.… read more here.

Keywords: stability; order derivative; fractional order; nonlinear chen ... See more keywords
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Enhanced FPGA realization of the fractional-order derivative and application to a variable-order chaotic system

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recommendations! Published in 2020 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-019-05449-w

Abstract: The efficiency of the hardware implementations of fractional-order systems heavily relies on the efficiency of realizing the fractional-order derivative operator. In this work, a generic hardware implementation of the fractional-order derivative based on the Grünwald–Letnikov’s… read more here.

Keywords: order; fractional order; application variable; order chaotic ... See more keywords

Application of fractional-order derivative in the quantitative estimation of soil organic matter content through visible and near-infrared spectroscopy

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recommendations! Published in 2019 at "Geoderma"

DOI: 10.1016/j.geoderma.2018.10.025

Abstract: Abstract The spectral preprocessing method has become an integral component of soil analysis through visible and near-infrared (Vis-NIR) spectroscopy. Various spectral pretreatment techniques are applied to improve model accuracy by removing undesired side effects, such… read more here.

Keywords: order; spectroscopy; soil; order derivative ... See more keywords
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Higher order derivative operators as quantum corrections

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recommendations! Published in 2019 at "Nuclear Physics B"

DOI: 10.1016/j.nuclphysb.2019.114634

Abstract: Abstract In this paper we propose a non-minimal, and ghost free, coupling between the gauge field and the fermionic one from which we obtain, perturbatively, terms with higher order derivatives as quantum corrections to the… read more here.

Keywords: order; higher order; operators quantum; order derivative ... See more keywords

On the role of the second-order derivative term in the calculation of convergent beam diffraction patterns.

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recommendations! Published in 2017 at "Ultramicroscopy"

DOI: 10.1016/j.ultramic.2017.04.001

Abstract: The simulation of (scanning) transmission electron microscopy images and diffraction patterns is most often performed using the forward-scattering approximation where the second-order derivative term in z is assumed to be small with respect to the… read more here.

Keywords: order; derivative term; second order; diffraction patterns ... See more keywords

Analytical Formulation of the Second-Order Derivative of Energy for the Orbital-Optimized Variational Quantum Eigensolver: Application to Polarizability.

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recommendations! Published in 2022 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.2c01176

Abstract: We develop a quantum-classical hybrid algorithm to calculate the analytical second-order derivative of the energy for the orbital-optimized variational quantum eigensolver (OO-VQE), which is a method to calculate eigenenergies of a given molecular Hamiltonian by… read more here.

Keywords: order derivative; derivative energy; second order; quantum ... See more keywords

FRI Sampling of ECG Signals Based on the Gaussian Second-Order Derivative Model

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recommendations! Published in 2025 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2024.3506989

Abstract: This article presents a novel under-sampling method for ECG signals, aimed at reducing the sampling rate and power consumption in IoT-based ECG wearable devices. The key contribution addresses the common issue of model mismatch in… read more here.

Keywords: order derivative; ecg signals; reconstruction; model ... See more keywords

Second-Order Sensitivity Neural Network Modeling Approach With Applications to Microwave Devices

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recommendations! Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2023.3335405

Abstract: In this article, a second-order derivative neural network approach is proposed for microwave device modeling to address the situation where not only the input–output relationship but also its high-order derivatives need to be accurately modeled.… read more here.

Keywords: order derivative; neural network; sensitivity; order ... See more keywords

On Impulsive Boundary Value Problem with Riemann-Liouville Fractional Order Derivative

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recommendations! Published in 2021 at "Journal of Function Spaces"

DOI: 10.1155/2021/8331731

Abstract: Our manuscript is devoted to investigating a class of impulsive boundary value problems under the concept of the Riemann-Liouville fractional order derivative. The subject problem is of implicit type. We develop some adequate conditions for… read more here.

Keywords: fractional order; boundary value; order derivative; riemann liouville ... See more keywords

First-order derivative matrix of a ray: a simple and flexible alternative computation method.

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recommendations! Published in 2019 at "Optics express"

DOI: 10.1364/oe.27.035402

Abstract: The present group previously proposed a method for determining the first-order derivative matrix (i.e., the Jacobian matrix) of a skew ray by taking all the independent variables of the optical system as the system variable… read more here.

Keywords: order; first order; derivative matrix; matrix ... See more keywords

A new general fractional-order derivative with Rabotnov fractional-exponential kernel

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recommendations! Published in 2019 at "Thermal Science"

DOI: 10.2298/tsci180825254y

Abstract: In this article, a general fractional-order derivative of the Riemann-Liouville type with the non-singular kernel involving the Rabotnov fractional-exponential function is addressed for the first time. A new general fractional-order derivative model for the anomalous… read more here.

Keywords: fractional exponential; general fractional; order derivative; fractional order ... See more keywords