Results 11 to 20 of about 343,701 (293)

Optimal bounds for the tangent and hyperbolic sine means [PDF]

open access: yesAequationes mathematicae, 2020
AbstractWe provide optimal bounds for the tangent and hyperbolic sine means in terms of various weighted means of the arithmetic and geometric means.
Monika Nowicka, Alfred Witkowski
openaire   +2 more sources

Several Double Inequalities for Integer Powers of the Sinc and Sinhc Functions with Applications to the Neuman–Sándor Mean and the First Seiffert Mean

open access: yesAxioms, 2022
In the paper, the authors establish a general inequality for the hyperbolic functions, extend the newly-established inequality to trigonometric functions, obtain some new inequalities involving the inverse sine and inverse hyperbolic sine functions, and ...
Wen-Hui Li, Qi-Xia Shen, Bai-Ni Guo
doaj   +1 more source

Bounds for the Neuman–Sándor Mean in Terms of the Arithmetic and Contra-Harmonic Means

open access: yesAxioms, 2022
In this paper, the authors provide several sharp upper and lower bounds for the Neuman–Sándor mean in terms of the arithmetic and contra-harmonic means, and present some new sharp inequalities involving hyperbolic sine function and hyperbolic cosine ...
Wen-Hui Li, Peng Miao, Bai-Ni Guo
doaj   +1 more source

A New Generator of Probability Models: The Exponentiated Sine-G Family for Lifetime Studies

open access: yesEntropy, 2021
In this article, we propose the exponentiated sine-generated family of distributions. Some important properties are demonstrated, such as the series representation of the probability density function, quantile function, moments, stress-strength ...
Mustapha Muhammad   +6 more
doaj   +1 more source

A new improved form of the Lomax model: Its bivariate extension and an application in the financial sector

open access: yesAlexandria Engineering Journal, 2023
The Lomax model, also known as Pareto Type-II, has broad feasibility, especially in financing. This work introduces a new generalization of the Lomax model called the arc-sine exponentiation Lomax, which helps consider economic phenomena.
Mustafa Kamal   +7 more
doaj   +1 more source

Parameter identification of photovoltaic models using a sine cosine differential gradient based optimizer

open access: yesIET Renewable Power Generation, 2022
In this paper, an efficient sine cosine differential gradient‐based optimization method is proposed for identifying unknown parameters of photovoltaic models.
Sudan Yu   +5 more
doaj   +1 more source

Accuracy analysis of the sine-wave parameters estimation by means of the windowed three-parameter sine-fit algorithm [PDF]

open access: yesDigital Signal Processing, 2016
This paper investigates the accuracy of the sine-wave parameter estimators provided by the Weighted Three-Parameter Sine-Fit (W3PSF) algorithm when a generic cosine window is adopted. Simple expressions for the estimators are derived, which allows a very simple implementation of that algorithm. Moreover, it is shown that the W3PSF algorithm can be well
Belega, Daniel, Petri, Dario
openaire   +2 more sources

A robust and resilience machine learning for forecasting agri-food production

open access: yesScientific Reports, 2022
This research proposes a new framework for agri-food capacity production by considering resiliency and robustness and paying attention to disruption and risk for the first time.
Reza Lotfi   +5 more
doaj   +1 more source

On the mean ergodic theorem of Sine [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
Robert Sine has shown that ( 1 / n ) ( I + T + ⋯ + T n − 1 ) (1/n)(I + T + \cdots + {T^{n - 1}}) , the ergodic averages, converge in the ...
openaire   +1 more source

Imputation of Rainfall Data Using the Sine Cosine Function Fitting Neural Network

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2021
Missing rainfall data have reduced the quality of hydrological data analysis because they are the essential input for hydrological modeling. Much research has focused on rainfall data imputation. However, the compatibility of precipitation (rainfall) and
Po Chan Chiu   +5 more
doaj   +1 more source

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