Results 31 to 40 of about 761,973 (302)

Reducing false wake-up in contention-based wake-up control of wireless LANs [PDF]

open access: yes, 2018
This paper studies the potential problem and performance when tightly integrating a low power wake-up radio (WuR) and a power-hungry wireless LAN (WLAN) module for energy efficient channel access.
24123, 24124, Obana, Sadao, Tang, Suhua
core   +2 more sources

Sensitivity of Wake Modelling Setups

open access: yesJournal of Physics: Conference Series, 2022
Abstract Engineering wake modelling with single turbine wake models and wake superposition models (SupModel) requires the choice of two crucial settings: the type of wake superposition and the wake expansion rate parameter. Based on offshore wind farm measurements, the appropriate tuning of such wake modelling setups with respect to wind
L Kemme   +4 more
openaire   +1 more source

A New Streamwise Scaling for Wind Turbine Wake Modeling in the Atmospheric Boundary Layer

open access: yesEnergies, 2022
In this study, we aim to investigate if there is a scaling of the streamwise distance from a wind turbine that leads to a collapse of the mean wake velocity deficit under different ambient turbulence levels.
Dara Vahidi, Fernando Porté-Agel
doaj   +1 more source

An Aero-acoustic Noise Distribution Prediction Methodology for Offshore Wind Farms

open access: yesEnergies, 2018
Recently attention has been paid to wind farm noise due to its negative health impact, not only on human beings, but also to marine and terrestrial organisms. The current work proposes a numerical methodology to generate a numerical noise map for a given
Jiufa Cao   +4 more
doaj   +1 more source

Coupled wake boundary layer model of wind-farms [PDF]

open access: yes, 2015
We present and test the coupled wake boundary layer (CWBL) model that describes the distribution of the power output in a wind-farm. The model couples the traditional, industry-standard wake model approach with a "top-down" model for the overall wind ...
Barthelmie R. J.   +12 more
core   +3 more sources

Clarification of influences of inflow conditions on wake of horizontal axis wind turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2015
In recent years, wind turbines are introduced in wind farms in which some wind turbines are concentrated. When wind turbines are built in contiguity with each other in wind farms, the flow passing through a wind turbine, which is called wake, may flow ...
Manhae HAN   +4 more
doaj   +1 more source

A physical wind‐turbine wake growth model under different stratified atmospheric conditions

open access: yesWind Energy, 2022
The wind‐turbine wake growth is crucial for wake assessment. At present, it can only be determined empirically, which is the primary source of prediction errors in the analytical wake model, and a physically‐based method is urgently needed. Recently, the
Bowen Du, Mingwei Ge, Yongqian Liu
doaj   +1 more source

A Fast-Slow Analysis of the Dynamics of REM Sleep

open access: yes, 2012
Waking and sleep states are regulated by the coordinated activity of a number of neuronal population in the brainstem and hypothalamus whose synaptic interactions compose a sleep-wake regulatory network.
Booth, Victoria, Diniz Behn, Cecilia G.
core   +1 more source

Study of Generalized Interaction Wake Models Systems with ELM Variation for Off-Shore Wind Farms

open access: yesEnergies, 2019
This paper reports a novel frandsen generalized wake model and its variation model-frandsen generalized normal distribution wake model for off-shore wind farms. Two different new wake models in off-shore wind farms have been studied comparatively.
Mingcan Li   +3 more
doaj   +1 more source

Characterizing Wake Behavior of Adaptive Aerodynamic Structures Using Reduced-Order Models

open access: yesEnergies
In recent times, blades that have the ability to change shape passively or actively have garnered interest due to their ability to optimize blade performance for varying flow conditions.
Kyan Sadeghilari, Aditya Atre, John Hall
doaj   +1 more source

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