Results 21 to 30 of about 59,338 (261)

Haar wavelet collocation approach for the solution of fractional order COVID-19 model using Caputo derivative

open access: yesAlexandria Engineering Journal, 2020
This article is devoted to study a compartmental mathematical model for the transmission dynamics of the novel Coronavirus-19 under Caputo fractional order derivative.
K. Shah   +5 more
semanticscholar   +1 more source

Application of Haar wavelet method for free vibration of laminated composite conical–cylindrical coupled shells with elastic boundary condition

open access: yesPhysica Scripta, 2021
In this paper, the Haar wavelet discretization method (HWDM) is proposed for the calculation of natural frequency of the laminated composite conical-cylindrical coupled shells.
Kwanghun Kim   +5 more
semanticscholar   +1 more source

Efficient sustainable algorithm for numerical solutions of systems of fractional order differential equations by Haar wavelet collocation method

open access: yesAlexandria Engineering Journal, 2020
This manuscript deals a numerical technique based on Haar wavelet collocation which is developed for the approximate solution of some systems of linear and nonlinear fractional order differential equations (FODEs).
T. Abdeljawad   +4 more
semanticscholar   +1 more source

Chronic cough in Germany: results from a general-population survey

open access: yesERJ Open Research, 2022
Background Chronic cough (CC) which is defined ≥8 weeks is a common condition in clinical practice. However, estimates of prevalence and associated comorbidities in German adults and key subgroups of age and gender are lacking.
J. Christian Virchow   +7 more
doaj   +1 more source

Verhaal achter vrijwilligerstoerisme

open access: yesJournal of Social Intervention, 2017
Verhaal achter vrijwilligerstoerismeVrijwilligerstoerisme is een groeiende sector. Per jaar reizen ruim 7000 Nederlandse vrijwilligers af naar ontwikkelingslanden met als doel zichzelf te ontwikkelen, kennis te maken met een andere cultuur en zich in te ...
Sena Ebbers
doaj   +1 more source

A Haar meager set that is not strongly Haar meager [PDF]

open access: yesIsrael Journal of Mathematics, 2019
Following Darji, we say that a Borel subset $B$ of an abelian Polish group $G$ is Haar meager if there is a compact metric space $K$ and a continuous function $f : K \to G$ such that the preimage of the translate, $f^{-1}(B+g)$ is meager in $K$ for every $g \in G$.
Elekes, Márton   +3 more
openaire   +4 more sources

Digital medicine: the next big leap advancing cardiovascular science

open access: yesBMC Cardiovascular Disorders, 2023
Solid clinical and academic leadership remains necessary to ensure that healthcare based on digital technologies is relevant, meaningful, and stands on the best possible evidence.
Alexander Kharlamov, Morten Lamberts
doaj   +1 more source

Coefficients of multiple Fourier-Haar series and variational modulus of continuity

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
In this paper, we introduce the concept of a variational modulus of continuity for functions of several variables, give an estimate for the sum of the coefficients of a multiple Fourier-Haar series in terms of the variational modulus of continuity, and ...
T.B. Akhazhanov   +3 more
doaj   +1 more source

Haar wavelets multi-resolution collocation procedures for two-dimensional nonlinear Schrödinger equation

open access: yesAlexandria Engineering Journal, 2021
In this article, two different multi-resolution methods based on Haar wavelets are proposed for the numerical solution of two-dimensional Schrodinger equations. Both the linear and nonlinear model equations are considered.
Xuan Liu   +5 more
semanticscholar   +1 more source

Image Compression using Haar and Modified Haar Wavelet Transform

open access: yesTikrit Journal of Engineering Sciences, 2011
Efficient image compression approaches can provide the best solutions to the recent growth of the data intensive and multimedia based applications. As presented in many papers the Haar matrix–based methods and wavelet analysis can be used in various ...
Mohannad Abid Shehab Ahmed   +2 more
doaj   +1 more source

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