Results 11 to 20 of about 326,856 (211)

Two-stage optimization of three and four straight-bladed vertical axis wind turbines (SB-VAWT) based on Taguchi approach

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2021
This research uses computational fluid dynamics (CFD) to perform a two-stage optimization of power output in multiple vertical-axis wind turbines (VAWT) with straight blades.
Wei-Hsin Chen   +6 more
doaj   +1 more source

The Recursive Properties of the Error Term of the Fourth Power Mean of the Generalized Cubic Gauss Sums

open access: yesJournal of Mathematics, 2021
In this paper, we use the analytic methods and the properties of the classical Gauss sums to study the properties of the error term of the fourth power mean of the generalized cubic Gauss sums and give two recurrence formulae for it.
Zhang Jin, Zhang Jiafan
doaj   +1 more source

Muscular and cardiorespiratory parameters of Brazilian professional futsal players: comparison between top national and regional level athletes [PDF]

open access: yesMotriz: Revista de Educacao Fisica, 2022
Aim: To compare muscular and cardiorespiratory parameters between Brazilian professional futsal athletes from different competitive levels (national versus regional).
Gabriela B. David   +6 more
doaj   +1 more source

Affine Projection Algorithm Based on Least Mean Fourth Algorithm for System Identification

open access: yesIEEE Access, 2020
In the field of signal processing such as system identification, the affine projection algorithm (APA) is extensively implemented. However, running such algorithms in a non-Gaussian scenario may degrade its performance, since the second-order moment ...
Xiaoding Wang, Jun Han
doaj   +1 more source

A note on two-term exponential sum and the reciprocal of the quartic Gauss sums

open access: yesAdvances in Difference Equations, 2021
The main purpose of this article is by using the properties of the fourth character modulo a prime p and the analytic methods to study the calculating problem of a certain hybrid power mean involving the two-term exponential sums and the reciprocal of ...
Wenpeng Zhang, Xingxing Lv
doaj   +1 more source

Removal of multiple artifacts from ECG signal using cascaded multistage adaptive noise cancellers

open access: yesArray, 2022
Although cascaded multistage adaptive noise cancellers have been employed before by researchers for multiple artifact removal from the ElectroCardioGram (ECG) signal, they all used the same adaptive algorithm in all the cascaded multi-stages for ...
Mohammed Mujahid Ulla Faiz, Izzet Kale
doaj   +1 more source

Comparative analysis of two different methods of anaerobic capacity assessment in sedentary young men [PDF]

open access: yesVojnosanitetski Pregled, 2010
Background/Aim. The Wingate anaerobic test is a valid and reliable method of measuring anaerobic capacity. The aim of this study was to determine whether other modified test can be used instead of the Wingate test. Methods.
Klašnja Aleksandar   +5 more
doaj   +1 more source

Comparison of prediction accuracy of five different biometric formulas

open access: yesRevista Brasileira de Oftalmologia, 2021
Objective To compare the performance of Sanders-Retzlaff-Kraft/Theoretical, Hoffer Q, Barrett Universal II, Kane, and Hill-radial basis function formulas to calculate intraocular lens power in eyes with normal axial length, in terms of predicting target
Adem Uğurlu   +2 more
doaj   +1 more source

Repeated practice runs during on-snow training do not generate any measurable neuromuscular alterations in elite alpine skiers

open access: yesFrontiers in Sports and Active Living, 2022
BackgroundAlpine skiers typically train using repeated practice runs requiring high bursts of muscle activity but there is little field-based evidence characterizing neuromuscular function across successive runs.PurposeTo examine the impact of repeated ...
Marine Alhammoud   +7 more
doaj   +1 more source

The hybrid power mean of the quartic Gauss sums and the two-term exponential sums

open access: yesAdvances in Difference Equations, 2018
In this paper, we use the analytic method and the properties of classical Gauss sums to study the computational problems of one kind hybrid power mean of quartic Gauss sums and two-term exponential sums, and give an interesting fourth-order linear ...
Xiaoxue Li
doaj   +1 more source

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