Results 21 to 30 of about 18,997 (237)
Journal of Marine Science and Engineering, 2023 Atmospheric ducts are special super-refractive atmospheric structures that can cause over-the-horizon propagation of electromagnetic waves. Different types of atmospheric ducts have different influences on electromagnetic wave propagation.
Yang Shi +3 more
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Experimental Analysis of Atmospheric Ducts and Navigation Radar Over-the-Horizon Detection
Remote Sensing, 2022 Since the height of sea detection radar antenna and ship targets is relatively low, it is generally believed that its over-the-horizon detection is mainly caused by the evaporation duct at sea.
Li-Feng Huang +7 more
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Energies, 2022 Spraying flue gas desulfurization wastewater into flue ducts is an emerging technology that is receiving extensive attention in thermal power plants. In order to study the evaporative performance of wastewater-atomizing droplets under variable working ...
Xinrui Guo +5 more
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Transient Marangoni convection in hanging evaporating drops [PDF]
, 2004 . A combined experimental and numerical analysis has been carried out to study Marangoni effects during the evaporation of droplets. The experiments are performed with pendant drops of silicone oils (with different viscosities) and hydrocarbons.
FICO S., SAVINO, RAFFAELE
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Evaporation duct assessment from meteorological buoys [PDF]
Radio Science, 2002 The evaporation duct over the sea is usually assessed using bulk meteorological measurements. This paper investigates the utility of meteorological buoys as a source for these bulk measurements and compares evaporation duct assessments using two buoys in southern California waters separated by 128 km.
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Application of the PJ and NPS evaporation duct models over the South China Sea (SCS) in winter.
PLoS ONE, 2017 The detection of duct height has a significant effect on marine radar or wireless apparatus applications. The paper presents two models to verify the adaptation of evaporation duct models in the SCS in winter. A meteorological gradient instrument used to
Shaobo Yang +4 more
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Fading Characteristics in Evaporation Duct: Fade Margin for a Wireless Link in the South China Sea
IEEE Access, 2018 Evaporation ducts (ED), which are caused by a rapid decrease in the refractive index of the lower atmosphere, are known to trap radio waves between the evaporation duct layer and the sea surface. Although signal propagation and refractivity estimation in
Khurram Shabih Zaidi +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 To fully grasp the characteristics and provide a basis for establishing an evaporation duct communication system for the South China Sea (SCS), we constructed a regional statistical database based on remote sensing meteorological parameters and a ...
Cheng Yang +3 more
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Heat and moisture insulation by means of air curtains: application to refrigerated chambers [PDF]
, 2016 The present study is devoted to the determination of the efficiency of air curtain units (ACUs) applied to heat and moisture insulation of refrigerated chambers.
Giráldez García, Héctor +3 more
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Frequency diversity effects of evaporation duct propagation [PDF]
IEEE Transactions on Antennas and Propagation, 1990 A comparison of 3, 9.6, and 18-GHz low-altitude over-the-horizon propagation (as influenced by the evaporation duct) is presented. Theoretical and experimental results are given for a 35-km over-water path, where the transmitters were located about 5 m above mean sea level and the receivers were located either 4-5 m or 18-19 m above sea level.
H.V. Hitney, L.R. Hitney
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