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2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT), 2018
This paper investigates the phenomenon of an evaporation duct and the possibility of waves to propagate inside it. This phenomenon arises as a result of permittivity gradient in the space above the water surface. The model representing the evaporation duct as a multi-layer structure is suggested.
Denis Serebriakov, Renat Abdullin
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This paper investigates the phenomenon of an evaporation duct and the possibility of waves to propagate inside it. This phenomenon arises as a result of permittivity gradient in the space above the water surface. The model representing the evaporation duct as a multi-layer structure is suggested.
Denis Serebriakov, Renat Abdullin
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Evaporation Duct Refractivity Profile
2006 IEEE Antennas and Propagation Society International Symposium, 2006This paper discusses the principles of evaporation duct refractivity profile estimation using bulk meteorological measurements. Four prevailing models among a number of developed ones were examined. Simulation results were compared with direct refractometric measurements.
Iu. Levadnyi, V. Ivanov
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Evaporation Duct Refractivity Profile Models
2006 European Microwave Conference, 2006Four most prevailing models for evaporation duct refractivity profile calculation based on the Monin-Obukhov similarity theory have been examined. The results of computations have been compared with the experimental data obtained by us during two marine expeditions.
Iu. Levadnyi, V. Ivanov, V. Shalyapin
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Evaporation-Induced Clogging of an Artificial Sweat Duct
ACS Applied Materials & Interfaces, 2020Metal-based antiperspirants have been in use for centuries; however, there is an increasing consumer demand for a metal-free alternative that works effectively. Here, we develop an artificial sweat duct rig and demonstrate an alternative, metal-free approach to antiperspiration.
Venkata Yashasvi Lolla +3 more
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Assessment of evaporation duct propagation simulation
2011 XXXth URSI General Assembly and Scientific Symposium, 2011The evaporation duct strongly influence microwave radars and communication systems. For evaluation of their performance in such environment combination of split-step parabolic equation and Monin-Obukhov similarity theory are usual approach. There are several variants of semiempirical functions used in the similarity theory which leads to different ...
Iurii Levadnyi +2 more
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Statistical assessment of evaporation duct propagation
IEEE Transactions on Antennas and Propagation, 1990Over-the-horizon propagation from 0.6 to 18 GHz is presented in the form of accumulated frequency distributions of path loss, showing the comparisons between theory and two measurement programs. The path-loss theory is based on waveguide solutions for a family of refractivity/height profiles characterized by evaporation duct height in the range of 1 to
H. Hitney, R. Vieth
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Optimal Antenna Position Inside Evaporation Duct
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO), 2018This paper is devoted to the investigation of an evaporation duct in the context of its impact on microwave links communication stability. The work contains the numerical results for previously developed mathematical model based on using the method of dyadic Green's functions.
Denis Serebriakov, Renat Abdullin
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Evaporative Cooling in Forced Duct Flow
Transactions of the Canadian Society for Mechanical Engineering, 1975The cooling of inside surfaces of heated ducts by the process of forced convection with evaporation is studied. Cooling is achieved by liquid-evaporation from the duct surface into a turbulent gas flow. An analysis is developed for predicting the stream and surface temperatures. Data are presented for air-water mixtures.
M.A. Kellow, J.H. VanSant, M. Tarabulsy
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A modern global evaporation duct climatology
2008 International Conference on Radar, 2008Climatologies of evaporation duct conditions over the worldpsilas ocean areas are important for radar system design studies and operational planning. The evaporation duct climatology currently in use by the U.S. Navy was developed in the mid-1980s.
Paul A. Frederickson +3 more
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