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Starlikness Associated with Cosine Hyperbolic Function

open access: yesMathematics, 2020
The main contribution of this article is to define a family of starlike functions associated with a cosine hyperbolic function. We investigate convolution conditions, integral preserving properties, and coefficient sufficiency criteria for this family ...
Abdullah Alotaibi   +3 more
doaj   +4 more sources

Dual-Channel Cosine Function Based ITD Estimation for Robust Speech Separation [PDF]

open access: yesSensors, 2017
In speech separation tasks, many separation methods have the limitation that the microphones are closely spaced, which means that these methods are unprevailing for phase wrap-around.
Xuliang Li   +3 more
doaj   +2 more sources

A new family of alpha power-G using cosine function with applications and regression modeling [PDF]

open access: yesScientific Reports
This paper discusses a novel technique to creating distribution families by combining the transformation of alpha power and the cosine function. The proposed technique have been named the cosine alpha power-generated family.
Amani S. Alghamdi, Shatha F. ALoufi
doaj   +2 more sources

A pseudorandom bit generator based on hyperbolic cosine function [PDF]

open access: yesITM Web of Conferences, 2022
In the literature, little attention is paid to devising and analyzing novel one dimensional chaotic mappings. In our previous efforts, we have tried fold, translation & scale on arctangent function & sigmoid function respectively, which brings good ...
Wu Qi
doaj   +2 more sources

Similarity Measures of q-Rung Orthopair Fuzzy Sets Based on Cosine Function and Their Applications

open access: yesMathematics, 2019
In this article, we propose another form of ten similarity measures by considering the function of membership degree, non-membership degree, and indeterminacy membership degree between the q-ROFSs on the basis of the traditional cosine similarity ...
Ping Wang, Jie Wang, Guiwu Wei, Cun Wei
doaj   +3 more sources

Existence and controllability results for damped second order impulsive functional differential systems with state-dependent delay [PDF]

open access: yesOpuscula Mathematica, 2014
In this paper, we investigate the existence and controllability of mild solutions for a damped second order impulsive functional differential equation with state-dependent delay in Banach spaces.
M. Mallika Arjunan, N. Y. Nadaf
doaj   +1 more source

A new Cosine-Weibull model: Distributional properties with applications to basketball and medical sectors

open access: yesAlexandria Engineering Journal, 2023
The two-parameter classical Weibull distribution is commonly implemented to cater for the product’s reliability, model the failure rates, analyze lifetime phenomena, etc. In this work, we study a novel version of the Weibull model for analyzing real-life
Xueyu Wu   +6 more
doaj   +1 more source

A series expansion of a logarithmic expression and a decreasing property of the ratio of two logarithmic expressions containing cosine

open access: yesOpen Mathematics, 2023
In this study, by virtue of a derivative formula for the ratio of two differentiable functions and with aid of a monotonicity rule, the authors expand a logarithmic expression involving the cosine function into the Maclaurin power series in terms of ...
Li Yan-Fang, Qi Feng
doaj   +1 more source

A Weighted Cosine-G Family of Distributions: Properties and Illustration Using Time-to-Event Data

open access: yesAxioms, 2023
Modeling and predicting time-to-event phenomena in engineering, sports, and medical sectors are very crucial. Numerous models have been proposed for modeling such types of data sets.
Omalsad Hamood Odhah   +3 more
doaj   +1 more source

New Class of Cosine-Sum Windows

open access: yesIEEE Access, 2023
Window functions are required to achieve excellent frequency resolution, peak sidelobe ratio, and sidelobe decay. The cosine-sum window function satisfies these requirements.
Tomoya Yamaoka, Satoshi Kageme
doaj   +1 more source

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