Results 41 to 50 of about 112,789 (301)
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
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo +3 more
wiley +1 more source
Gaoyuan qixiangWind profiling radar is a remote sensing device that boasts high spatiotemporal resolution and good consistency with sounding data， capable of probing the vertical distribution of atmospheric wind fields.Dali Airport， situated at the western edge of the ...
Kunlin YANG +4 more
doaj +1 more source
Performance testing of a 50 kW VAWT in a built-up environment [PDF]
, 1981 The results of performance tests of a DAF Indal 50 kW vertical axis wind turbine are presented. Results of limited free stream turbulence and vertical wind shear measurements at the site are also presented.
Schienbein, L. A.
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Advanced Engineering Materials, EarlyView.Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller +6 more
wiley +1 more source
Crosswise Wind Shear Represented as a Ramped Velocity Profile Impacting a Forward-Moving Aircraft
International Journal of Aerospace Engineering, 2019 Abrupt changes in wind velocities over small distances in a lateral or vertical direction can produce wind shear which is known to have serious effects upon the performance of an aircraft.
Mahmood Khalid
doaj +1 more source
Analysis of synoptic situation and environmental parameters of thunderstorm gales in Hainan
暴雨灾害, 2022 In this study we analyzed the intensity, temporal and spatial distribution, circulation situation and environmental parameters of thunderstorm gale during 2014-2018 in Hainan using regional encrypted automatic station data and sounding data at Haikou ...
Yuanhui KE +3 more
doaj +1 more source
Field testing of a local wind inflow estimator and wake detector [PDF]
Wind Energy Science, 2020 This paper presents the field validation of a method to estimate the local wind speed on different sectors of a turbine rotor disk. Each rotating blade is used as a scanning sensor that, traveling across the rotor disk, samples the inflow. From the local
J. Schreiber +2 more
doaj +1 more source
Vertical Shear Instability and Photoevaporative Winds
, 2020 In recent years hydrodynamical (HD) models have become important to describe the gas kinematics in protoplanetary disks, especially in combination with models of photoevaporation and/or magnetically driven winds. Our aim is to investigate how vertical shear instability (VSI) could influence the thermally driven winds on the surface of protoplanetary ...
openaire +1 more source
Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source