Results 31 to 40 of about 10,720 (262)
Low Level Turbulence Detection For Airports
International Journal of Aviation, Aeronautics, and Aerospace, 2019 —— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Despite many advances in on-board and ground based warning systems. Wind shear remains a formidable force that coupled with
Anthony O' Connor, Derek Kearney
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Acoustic wind and wind-shear measuring system [PDF]
The Journal of the Acoustical Society of America, 1976 An acoustic wind-profiling system designed to detect hazardous wind-shear conditions in the airport environment has been developed during the past four years. The system installed at Dulles International Airport consists of a vertically pointed transmitter surrounded by three receivers 290-m distant and separated by 120° in azimuth.
P. A. Mandics, D. W. Beran
openaire +1 more source
From shear to veer: theory, statistics, and practical application [PDF]
Wind Energy Science, 2023 In the past several years, wind veer – sometimes called “directional shear” – has begun to attract attention due to its effects on wind turbines and their production, particularly as the length of manufactured turbine blades has increased.
M. Kelly, M. P. van der Laan
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Applied Sciences, 2020 Noise generated from wind turbines is a big challenge for the wind energy industry to develop further onshore wind energy. The traditional way of reducing noise is to design low noise wind turbine airfoils and blades.
Mingyue Zhou +3 more
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Windshear Identification Algorithms by Doppler Pulse Lidar [PDF]
ITM Web of Conferences, 2019 Doppler pulse lidars are increasingly common as a tool for monitoring hazardous wind phenomena. Possible applications include measurements of wake vortices behind aircraft, detection of vertical and horizontal wind shear, detection of gust fronts, and ...
Baranov Nikolay, Lemishchenko Ekaterina
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Hong Kong Airport Wind Shear Now-Casting System Development and Evaluation
Atmosphere, 2022 A wind-shear now-casting system for Hong Kong International Airport is described. The system has been configured and run retrospectively for the period from January to April 2018 at 20-min intervals using two sets of meteorological inputs to quantify ...
Jenny Stocker +6 more
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Study on the influence of topography on wind shear numerical simulations based on WRF–CALMET [PDF]
Geoscientific Instrumentation, Methods and Data SystemsThis study focuses on the critical issue of low-altitude wind shear, which is vital for aircraft safety during takeoff and landing. Using the WRF–CALMET model, we assess the impact of topography on low-level wind shear at Zhongchuan Airport.
X. Wang +5 more
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Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer
Molecular Oncology, EarlyView.Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola +11 more
wiley +1 more source
A Study of Wind Shear Influences on the Aerodynamic Performances of a UAV Airfoil
Applied Sciences, 2023 In order to study the flight strategies of birds in shear wind and realize the long-range flight of an unmanned aerial vehicle (UAV), the aerodynamic performances of a UAV’s airfoil under different shear wind are studied using numerical methods.
Yin Yang, Dawei Liu, Lianshan Lu
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FEBS Open Bio, EarlyView.The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer +7 more
wiley +1 more source