Results 11 to 20 of about 581 (190)

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

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

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

Advantages of Dual Hyperbolic Tangent Function Over Single Hyperbolic Tangent Function in Description of Hysteresis Loops

open access: yesInternational Review of Electrical Engineering (IREE), 2016
If the mathematical description of the magnetic hysteresis loop branches should be simple, easy to use and should credibly describe the waveform magnetic hysteresis loop with a minimum number of parameters, then it inevitably leads to the description of magnetic hysteresis loop branches with a hyperbolic tangent function.
Barić, Tomislav   +2 more
openaire   +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

Adaptive Barrier Fast Terminal Sliding Mode Actuator Fault Tolerant Control Approach for Quadrotor UAVs

open access: yesMathematics, 2022
This paper proposes an adaptive barrier fast terminal sliding mode control (ABFTSMC) approach for quadrotor unmanned aerial vehicles (UAV). Its main objectives are to mitigate the external disturbances, parametric uncertainties, and actuator faults.
Amin Najafi   +4 more
doaj   +1 more source

A New Wavelet Thresholding Function Based on Hyperbolic Tangent Function

open access: yesMathematical Problems in Engineering, 2015
Thresholding function is an important part of the wavelet threshold denoising method, which can influence the signal denoising effect significantly. However, some defects are present in the existing methods, such as function discontinuity, fixed bias, and parameters determined by trial and error.
Can He   +4 more
openaire   +2 more sources

A new class activation functions with application in the theory of impulse technics

open access: yesJournal of Mathematical Sciences and Modelling, 2018
In this note we define the new activation functions, based on the well-known hyperbolic tangent and half--hyperbolic tangent activation functions. We consider the Hausdorff distance between the ''double step'' function $\sigma^{\ast}(t)$ (resp. function $
Nikolay Kyurkchiev
doaj   +1 more source

Home - About - Disclaimer - Privacy