Results 21 to 30 of about 340,969 (257)
Two-scale momentum theory for very large wind farms [PDF]
, 2016 A new theoretical approach is proposed to predict a practical upper limit to the efficiency of a very large wind farm. The new theory suggests that the efficiency of ideal turbines in an ideal very large wind farm depends primarily on a non-dimensional ...
Nishino, Takafumi
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BMC Ophthalmology, 2022 Background To perform a quantitative analysis of retinal microvasculature in patients with early-stage diabetic retinopathy (DR) using wide-field swept-source optical coherence tomography angiography (SS-OCTA).
Xiang-ning Wang +5 more
doaj +1 more source
Atmosphere, 2019 The influence of the heights of low-level jets (LLJs) on the rotor power and aerodynamic loads of a horizontal axis wind turbine were investigated using the fatigue, aerodynamics, structures, and turbulence code. The LLJ and shear inflow wind fields were
Xuyao Zhang, Congxin Yang, Shoutu Li
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Journal of Marine Science and Engineering, 2023 In order to investigate the output power and wake velocity of small multi-rotor wind turbines compared to single-rotor wind turbines, which operate in the same swept area at various blade tip distances, this paper used the wind tunnel test method to ...
Sen Gong, Kai Pan, Hua Yang, Junwei Yang
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Journal of Medical Case Reports, 2018 Purpose To describe swept-source optical coherence tomography and optical coherence tomography angiography retinal changes in a case of acute toxoplasmic chorioretinitis both at the time of diagnosis and after healing.
Diego Vezzola +6 more
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Vertical wind profile characterization and identification of patterns based on a shape clustering algorithm [PDF]
, 2019 Wind power plants are becoming a generally accepted resource in the generation mix of many utilities. At the same time, the size and the power rating of individual wind turbines have increased considerably.
Bueso Sánchez, María del Carmen +4 more
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Comparison of Blade Dimension Design of a Vertical Wind Turbine Applied in Low Wind Speed
E3S Web of Conferences, 2018 The type of vertical turbine used for this research was a savonious where the profile of the blade was made in the form of a half-cylinder. The performance of the turbine rotation was strongly influenced by the swept area.
Yuliandi Rizky Brillian +2 more
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Harvesting Wind Energy from Aerodynamic Design for Building Integrated Wind Turbines
International Journal of Technology, 2014 Alternative energy, nowadays, becomes more necessary than fossil fuels which might be destructing and polluting the earth’s environment. Wind can be one of the most cheap, secure, environment friendly and reliable energy supplies.
Kang-Pyo Cho +2 more
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Journal of New Results in Science, 2020 In this study, exploitable stock biomass of sprat (Sprattus sprattus, Linnaeus, 1758) distributed along Samsun shelf area (SSA) was estimated for the period 2014 January – May. “Swept Area” method was used in the study.
Uğur Özsandıkçı
doaj
Direct Measurements of Turbulence and Flow Characteristics of a Vertical Axis Wind Turbine Using the Eddy Covariance Method [PDF]
Iranica Journal of Energy and Environment, 2016 Turbulence intensity measurements of vertical axis wind turbine (VAWT) are essential to detemineitsefficiency and performance. In this study, the eddy covariance (EC) method was used to characterise the flow and directly measure turbulence of a VAWT in a
Y. H’ng, Y. Yusup
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