Results 241 to 250 of about 9,873,253 (312)

Feasibility of a field-based submaximal stair ascent test for estimating aerobic capacity and lower-limb strength in middle-aged and older adults. [PDF]

open access: yesClin Physiol Funct Imaging
Hyvärinen M   +7 more
europepmc   +1 more source

Wind turbine power coefficient models based on neural networks and polynomial fitting

IET Renewable Power Generation, 2020
The power coefficient parameter represents the aerodynamic wind turbine efficiency. Since the 1980s, several equations have been used in the literature to study the power coefficient as a function of the tip speed ratio and the pitch angle. In this study,
Miguel Carpintero-Rentería   +3 more
semanticscholar   +1 more source

Power Coefficient Analysis of Savionus Wind Turbine Using CFD Analysis

2019 International Conference on Mechatronics, Robotics and Systems Engineering (MoRSE), 2019
This paper aims to study the power coefficient of the Savonius wind turbine using Computational Fluid Dynamics (CFD) analysis. Power coefficient is one of the parameter of a wind turbine, to define the ratio between the actual wind power and the ...
Marvin Trisakti, Levin Halim, B. Arthaya
semanticscholar   +1 more source

Effect analysis on power coefficient enhancement of a convective wind energy collecting device in the expressway

Energy Conversion and Management, 2018
The purpose of this paper is to study the equipment parameters of expressway convective wind energy collection devices and determine the optimal structural parameters by numerical methods.
Wenyu Hu   +7 more
semanticscholar   +1 more source

Oscillations in the Coefficients of Power Series

SIAM Journal on Applied Mathematics, 1987
Let (i) P(z) be analytic in the sector S, defined by \[ S ...
openaire   +2 more sources

On the actual power coefficient by theoretical developing of the diffuser flange of wind-lens turbine

Renewable Energy, 2018
The wind-lens technology attracts extensive attention due to its promising performance. A numerical study was carried out to investigate the effects of diffuser flange inclination angle (φ) and the diffuser flange depth inside the exit of the diffuser ...
H. Heikal   +4 more
semanticscholar   +1 more source

On the scarcity of powerful binomial coefficients

Mathematika, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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