Institution
National Aviation University
Education•Kyiv, Ukraine•
About: National Aviation University is a education organization based out in Kyiv, Ukraine. It is known for research contribution in the topics: Radar & Pulse-Doppler radar. The organization has 2191 authors who have published 2312 publications receiving 7899 citations.
Papers published on a yearly basis
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TL;DR: In this article, the electrical conductivity of polymer/multi-walled carbon nanotubes (MWCNTs) composites in a powder and in a hot-pressed compacted state, prepared by mechanical mixing, was studied.
277 citations
TL;DR: Multiple experimental results confirm that the polyanion unit (1-V2) itself is the dominant active catalyst and not Co(2+)(aq) or cobalt oxide.
Abstract: An all-inorganic, oxidatively and thermally stable, homogeneous water oxidation catalyst based on redox-active (vanadate(V)-centered) polyoxometalate ligands, Na10[Co4(H2O)2(VW9O34)2]·35H2O (Na101-V2, sodium salt of the polyanion 1-V2), was synthesized, thoroughly characterized and shown to catalyze water oxidation in dark and visible-light-driven conditions. This synthetic catalyst is exceptionally fast under mild conditions (TOF > 1 × 103 s–1). Under light-driven conditions using [Ru(bpy)3]2+ as a photosensitizer and persulfate as a sacrificial electron acceptor, 1-V2 exhibits higher selectivity for water oxidation versus bpy ligand oxidation, the final O2 yield by 1-V2 is twice as high as that of using [Co4(H2O)2(PW9O34)2]10– (1-P2), and the quantum efficiency of O2 formation at 6.0 μM 1-V2 reaches ∼68%. Multiple experimental results (e.g., UV–vis absorption, FT-IR, 51V NMR, dynamic light scattering, tetra-n-heptylammonium nitrate-toluene extraction, effect of pH, buffer, and buffer concentration, etc....
246 citations
TL;DR: The fractal dimension is shown to be sensitive to the surfactant concentration C(s) and the transient behavior of electrical conductivity in the aqueous suspensions is explained by fractal aggregation processes.
106 citations
TL;DR: In this paper, new possibilities of turbulence intensity retrieval by using Doppler and doppler-polarimetric radar sounding have been considered, and new methods have been introduced, discussed, and checked by using radar data.
Abstract: This paper considers new possibilities of turbulence intensity retrieval by using Doppler and Doppler-polarimetric radar sounding. Peculiarities of microwave scattering on moving droplets of different size and shape underlie new methods that are introduced, discussed, and checked by using radar data
88 citations
TL;DR: In this paper, a turboprop engine used in regional aircrafts that produces 1948 shp and 640 N.m torque is examined using exergo-environmental method, and the results show compressor, combustion chamber, gas generator turbine, power turbine and exhaust nozzle create 9%, 69%, 13, 7, 7%, 2% of total environmental impact of the engine, respectively.
76 citations
Authors
Showing all 2231 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Nikolai Lebovka | 50 | 225 | 7759 |
| Viktor Stabnikov | 17 | 50 | 1015 |
| Felix Yanovsky | 17 | 187 | 948 |
| V. M. Kalita | 15 | 91 | 723 |
| Sergei Kruchinin | 14 | 58 | 535 |
| Milana Lisunova | 13 | 26 | 961 |
| Sergiy Gnatyuk | 13 | 75 | 472 |
| Yu. I. Velikodsky | 11 | 36 | 544 |
| Oleksandr Popov | 11 | 37 | 283 |
| Valeriia Kovach | 11 | 32 | 280 |
| Volodymyr Kharchenko | 10 | 75 | 312 |
| Roman Odarchenko | 9 | 51 | 245 |
| Ivan Ostroumov | 9 | 49 | 211 |
| Nataliia Kuzmenko | 9 | 47 | 212 |
| Maksym Zaliskyi | 9 | 48 | 198 |