Results 21 to 30 of about 7,507 (155)

Arithmetic Optimization Algorithm Based on Cauchy Mutation Trigonometric Function Search to Solve Combined Economic Emission Dispatch Problem

open access: yesIEEE Access, 2023
Nowadays, problems such as greenhouse effect and air pollution become increasingly prominent. The power generation process should pay attention to the fuel cost and reduce the pollution to the environment.
Yun-Peng Li   +2 more
doaj   +1 more source

Approximations of Tangent Polynomials, Tangent –Bernoulli and Tangent – Genocchi Polynomials in terms of Hyperbolic Functions

open access: yesJournal of Applied Mathematics, 2021
Asymptotic approximations of Tangent polynomials, Tangent-Bernoulli, and Tangent-Genocchi polynomials are derived using saddle point method and the approximations are expressed in terms of hyperbolic functions. For each polynomial there are two approximations derived with one having enlarged region of validity.
Cristina B. Corcino   +2 more
openaire   +3 more sources

The exact solutions for the (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation

open access: yesResults in Physics, 2021
In the paper, we study the Boiti-Leon-Manna-Pempinelli equation with (3 + 1) dimension. By using the modified hyperbolic tangent function method, we obtain more new exact solutions for the (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation, which ...
Xiaofang Duan, Junliang Lu
doaj   +1 more source

New inequalities between the inverse hyperbolic tangent and the analogue for corresponding functions

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we present new inequalities which reveal further relationship for both the inverse tangent function arctan ( x ) $\arctan (x)$ and the inverse hyperbolic function arctanh ( x ) $\operatorname{arctanh}(x)$ .
Xiao-Diao Chen, Long Nie, Wangkang Huang
doaj   +1 more source

Studying Stability of a Non-linear Autoregressive Model [PDF]

open access: yesمجلة التربية والعلم, 2018
In this paper we study the stability of one non-linear autoregressive model with hyperbolic triangle function polynomial with hyperbolic tangent function (singular point and it's stability conditions and the stability of the limit cycle) by using the ...
Anas Salim Youns   +1 more
doaj   +1 more source

Inequalities between the inverse hyperbolic tangent and the inverse sine and the analogue for corresponding functions

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we obtain some new inequalities which reveal the further relationship between the inverse tangent function arctanx and the inverse hyperbolic sine function sinh−1 x. At the same time, we give the analogue for inverse hyperbolic tangent and
Ling Zhu, Branko Malešević
doaj   +1 more source

Robust adaptive filtering algorithms based on (inverse)hyperbolic sine function.

open access: yesPLoS ONE, 2021
Recently, adaptive filtering algorithms were designed using hyperbolic functions, such as hyperbolic cosine and tangent function. However, most of those algorithms have few parameters that need to be set, and the adaptive estimation accuracy and ...
Sihai Guan   +3 more
doaj   +1 more source

A novel active disturbance rejection control with hyperbolic tangent function for path following of underactuated marine surface ships

open access: yesMeasurement + Control, 2020
This paper presents a TADRC method via active disturbance rejection control (ADRC) with hyperbolic tangent function for path following of underactuated surface ships with input constraint, heading rate constraint, parameters uncertainties, as well as ...
Ronghui Li   +3 more
doaj   +1 more source

Selection of MR damper model suitable for SMC applied to semi-active suspension system by using similarity measures

open access: yesOpen Engineering, 2022
This article discusses the research to determine the suitable magnetorheological (MR) damper model to produce the damping force generated by the sliding mode control (SMC) strategy.
Hidayat Raymundus Lullus Lambang Govinda   +4 more
doaj   +1 more source

Designing Hyperbolic Tangent Sigmoid Function for Solving the Williamson Nanofluid Model

open access: yesFractal and Fractional, 2023
This study shows the design of the novel hyperbolic tangent sigmoid function for the numerical treatment of the Williamson nanofluid model (WNM), which is categorized as velocity, concentration, and temperature.
Basma Souayeh, Zulqurnain Sabir
doaj   +1 more source

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