Numerical study of aircraft wake vortex evolution near ground in stable atmospheric boundary layer
Sign Up to like & getrecommendations! Published in 2017 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2017.08.012
Abstract: Abstract The evolutions of aircraft wake vortices near ground in stable atmospheric boundary layer are studied by Large Eddy Simulation (LES). The sensitivity of vortex evolution to the Monin-Obukhov (M-O) scale is studied for the… read more here.
Keywords: atmospheric boundary; stable atmospheric; aircraft wake; boundary layer ... See more keywords
Animal Locomotion: Near-Ground Low-Cost Flights
Sign Up to like & getrecommendations! Published in 2018 at "Current Biology"
DOI: 10.1016/j.cub.2018.10.013
Abstract: Flying animals expend considerable energy. A new study reveals that bats reduce their flight power requirements by nearly a third when flying in 'ground effect' close to the surface. read more here.
Keywords: ground; locomotion near; low cost; animal locomotion ... See more keywords
Experiments with dead wood reveal the importance of dead branches in the canopy for saproxylic beetle conservation
Sign Up to like & getrecommendations! Published in 2018 at "Forest Ecology and Management"
DOI: 10.1016/j.foreco.2017.11.052
Abstract: Abstract Vertical gradients of habitats are a typical characteristic of forest ecosystems. Sun-exposed dead wood in the upper canopy, for instance, provides a habitat for saproxylic beetles distinct from that in the more shaded dead… read more here.
Keywords: upper canopy; saproxylic beetle; dead wood; near ground ... See more keywords
Wind turbine impact on near-ground air temperature
Sign Up to like & getrecommendations! Published in 2018 at "Renewable Energy"
DOI: 10.1016/j.renene.2018.02.091
Abstract: Abstract Several aspects of wind farms’ environmental impacts have been thoroughly studied. Their effect on surface temperature, however, has not been sufficiently explored. We analysed variations in land surface temperature observed over 5 months on… read more here.
Keywords: wind; air temperature; temperature; effect ... See more keywords
Modeling near ground-state cooling of two-dimensional ion crystals in a Penning trap using electromagnetically induced transparency
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.023409
Abstract: Penning traps, with their ability to control planar crystals of tens to hundreds of ions, are versatile quantum simulators. Thermal occupations of the motional drumhead modes, transverse to the plane of the ion crystal, degrade… read more here.
Keywords: trap; near ground; ground state; ion ... See more keywords
Toward Near-Ground Localization: Modeling and Applications for TOA Ranging Error
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2017.2742551
Abstract: Near-ground localization is a special type of localization scenario that is widely considered in both academic and industry. In this communication, with considering the multipath condition in near-ground environments, we conducted field measurements and proposed… read more here.
Keywords: toa ranging; near ground; ranging error; localization ... See more keywords
Examining wind noise reduction effects of windscreens and microphone elevation in outdoor acoustical measurements
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Acoustical Society of America"
DOI: 10.1121/2.0001413
Abstract: Jones et al. [J. Acoust. Soc. Am. 146, 2912 (2019)] compared an elevated (1.5 m) acoustical measurement configuration that used a standard commercial windscreen for outdoor measurements with a ground-based configuration with a custom windscreen. That… read more here.
Keywords: near ground; wind noise; ground; effects windscreens ... See more keywords
Near ground horizontal high resolution Cn2 profiling from Shack-Hartmann slopeand scintillation data.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.438170
Abstract: Coupled slope and scintillation detection and ranging (CO-SLIDAR) is a very promising technique for the metrology of near ground Cn2 profiles. It exploits both phase and scintillation measurements obtained with a dedicated wavefront sensor and… read more here.
Keywords: scintillation; cn2; shack hartmann; metrology ... See more keywords
Optical cold damping of neutral nanoparticles near the ground state in an optical lattice.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.462921
Abstract: We propose and demonstrate purely optical feedback cooling of neutral nanoparticles in an optical lattice to an occupation number of 0.85 ± 0.20. The cooling force is derived from the optical gradients of displaced optical lattices produced… read more here.
Keywords: neutral nanoparticles; optical lattice; near ground; ground state ... See more keywords
Development and Evaluation of SLINE 1.0, a Line Source Dispersion Model for Gaseous Pollutants by Incorporating Wind Shear Near the Ground under Stable and Unstable Atmospheric Conditions
Sign Up to like & getrecommendations! Published in 2021 at "Atmosphere"
DOI: 10.3390/atmos12050618
Abstract: Transportation sources are a major contributor to air pollution in urban areas, and the role of air quality modeling is vital in the formulation of air pollution control and management strategies. Many models have appeared… read more here.
Keywords: wind shear; ground; ground level; model ... See more keywords