Results 81 to 90 of about 3,224,693 (191)

Wind Energy Applications Guide [PDF]

open access: yes, 2001
The brochure is an introduction to various wind power applications for locations with underdeveloped transmission systems, from remote water pumping to village electrification.

core   +1 more source

Airport low-level wind shear lidar observation at Beijing Capital International Airport

open access: yesInfrared physics & technology, 2018
The low-level wind shear is defined as a sharply change of the wind speed or wind direction within 600 m above the ground level. Due to affecting the airspeed of aircraft during take-off and landing phases, the wind shear can result in the disastrous ...
Hong-Wei Zhang   +5 more
semanticscholar   +1 more source

Synthesis of a compact wind profile using evolutionary algorithms for wind turbine system with storage [PDF]

open access: yes, 2012
In this paper, the authors investigate two methodologies for synthesizing compact wind speed profiles by means of evolutionary algorithms. Such profile can be considered as input parameter in a prospective design process by optimization of a passive wind
Jamel Belhadj   +9 more
core   +1 more source

Offshore vertical wind shear: Final report on NORSEWInD’s work task 3.1 [PDF]

open access: yes, 2012
This document reports on the analysis performed by the work task 3.1 of the EU NORSEWInD project and includes the following deliverables: 3.2 Calculated vertical wind shears 3.3 Multi-variational correlation analysis 3.4 NWP data for wind shear model 3.5
Hasager, Charlotte Bay   +7 more
core  

Determining Wind Shear Threshold by Using Historical Sounding Data in Experimental Area

open access: yesAtmosphere
This paper conducts a technical study on a method for determining the occurrence threshold of wind shear based on historical sounding data. After analyzing the impact of low-altitude wind shear on aircraft flight safety, a method for determining the ...
Tingting Shu   +5 more
doaj   +1 more source

The Unexpected Rapid Intensification of Tropical Cyclones in Moderate Vertical Wind Shear. Part II: Vortex Tilt

open access: yesMonthly Weather Review, 2018
We investigate a class of tropical cyclones (TCs) that undergo rapid intensification (RI) in moderate vertical wind shear through analysis of a series of idealized model simulations.
D. Ryglicki   +4 more
semanticscholar   +1 more source

Vertical wind shear in Neptune’s upper atmosphere explained with a modified thermal wind equation

open access: yesIcarus (New York, N.Y. 1962), 2018
We present observations of Neptune taken in H-(1.4–1.8 µm) and K’-(2.0–2.4 µm) bands on the nights of July 3, 2013 and August 20, 2014 from the 10-m W.M. Keck II Telescope using NIRC2 coupled to the Adaptive Optics (AO) system. We track the positions of ∼
J. Tollefson   +7 more
semanticscholar   +1 more source

Uncertainty in vertical extrapolation of wind statistics: shear-exponent and WAsP/EWA methods [PDF]

open access: yes, 2016
This report provides formulations for estimation of uncertainties involved in vertical extrapolation of winds, as well as the total uncertainty incurred when winds observed at one height are extrapolated to turbine hub height for wind resource assessment.
Kelly, Mark C.
core  

Assessment of Wind Shear Severity in Airport Runway Vicinity using Interpretable TabNet approach and Doppler LiDAR Data

open access: yesApplied Artificial Intelligence
Severe wind shear events near airport runways pose serious safety risks and are a growing concern in civil aviation. Identification of severe wind shear risk factors may enhance aviation safety.
Afaq Khattak   +3 more
doaj   +1 more source

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