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Концептуальное проектирование радиолокационной станции с синтезированием апертуры антенны (РСА) на воздушном носителе "из первых принципов"
Журнал радиоэлектроники. 2012. № 1. С. 1–35.
Рассадин А. Э.
In this paper methodology of conceptual design of airborne radar with synthetic aperture antenna (SAR) in the framework of mathematical technology paradigm is under investigation, moreover main attention is paid to physical but not phenomenological models. Performance criterions of design for SAR as a whole system and for its subsystems have been introduced. Approximation of specific effective dispersion section matrix on remote sensing data by means of two-dimensional atomic interpolants, two-dimensional atomic Kravchenko wavelets and two-dimensional generalized Kotelnikov theorem with vector-parametric atomic functions is considered. On the basis of the theory of growing interfaces and the classical problem on diffraction of plane electromagnetic wave by wedge exactly solved models of electrodynamic properties of surfaces in cold regions of the Earth are constructed.
Language:
Russian
Keywords: системный анализsystem analysisкритерий качестваконцептуальное проектированиеmethod of characteristicsРСАметод характеристикconceptual designmathematical technologyperformance criterionthe physical theory of diffractionSARradar imageatomic functionsspecific effective dispersion sectionматематическая технологияфизическая теория дифракцииатомарные функциирадиолокационное изображениеудельная эффективная поверхность рассеяния
Спонтанное образование скин-слоя в воде с деформацией ОН-полосы КР вкладом компоненты льда 3200 см-1
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Открыто спонтанное образование в течение 4 ч скин-слоя дистиллированной воды толщиной до 3 мм при комнатной температуре с новыми свойствами. Обнаружены деформация ОН-полосы комбинационного рассеяния вкладом компоненты льда ( 3200 см-1), снижение коэффициента упругого рассеяния и его флуктуаций, а также увеличение на 20 капиллярах. Восстановление слоя после обогащения воздухом в результате перемешивания указывает на стабильность ...
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Zirnik G., Ostovari Moghaddam A., Zhukov S. et al., Journal of Materials Science: Materials in Electronics 2026 Vol. 37 Article 738
In regards to the advances in InGaZnO for flexible transistors applications, herein for the first time we measure the broadband radio-frequency range (10 Hz to 1 MHz) dielectric permittivity ε′ and electrical conductivity σ of InGaZnO4 nanoparticle layers at different temperatures ranging from 10 to 300 K. The InGaZnO4 nanoparticles prepared by metal–nitrate–glycol gel decomposition method exhibited ...
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Nishant T., Kartsev A., Saswata G. et al., Journal of Materials Chemistry C 2026 Article -
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В статье про платформы для разработки открытого ПО в Китае мы рассказали про GitCode – молодой проект, позиционируемый как площадка для разработчиков со всего мира. Сейчас на GitCode размещаются проекты, созданные в КНР, но некоторые из них уже известны и на международной арене. Помочь открытым проектам в становлении, развитии и расширению аудитории призван фонд OpenAtom ...
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Duran E. ., Pulgar A., Izquierdo R. et al., Physica Status Solidi (A) Applications and Materials 2026 Vol. 223 No. 7 Article e202500942
Ceramic superconductors exhibit remarkable properties, including zero electrical resistance and potent magnetic behavior, operating at temperatures as high as the boiling points of liquid nitrogen (77 K) and liquid hydrogen (20 K). These characteristics position them as key enablers for sustainable technologies spanning electric propulsion, lossless energy transmission, advanced medical imaging, and quantum computation. This review presents ...
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The synthesis and data on the physicochemical characteristics and biological activity of the new iron nitrosyl complex (Q+)2[Fe2(S2O3)2(NO)4]2– (I), where Q+ is protonated 2-ethyl-4-pyridinecarbothioamide (C8H11N2S), are presented. The structure and properties of the complex were studied by X-ray diffraction, elemental analysis, IR and Mössbauer spectroscopy, and amperometry. The complex showed antibacterial activity and efficiently inhibited ...
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New neutral binuclear tetranitrosyl iron complexes of the composition [Fe2R2(NO)4] (R = 2,4-difluorothiophenyl(1) and 3,4-difluorothiophenyl(2)), donors of nitrogen oxide (NO), have been synthesized. The complexes were studied by Mossbauer, IR, and EPR spectroscopy, X-ray diffraction, and elemental analysis. The antibacterial activity and cytotoxicity in Vero cells of the complexes 1, 2 and the previously synthesized ...
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Dragalina-Chernaya E., Философия. Журнал Высшей школы экономики 2024 Т. 8 № 1 С. 29–41
The paper shows the relevance of the interpretation of logic as formal philosophy and an art of conceptual design for university education. Due to its pluralism, modern logic has lost the functions of neutral arbiter and indoctrination mentor, but at the same time, logical pluralism has revealed the uniqueness of its role in conceptual engineering. ...
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Чернышев С. Л., Богомолов А. В., Булдакова Т. И. et al., Вестник Южно-Уральского государственного университета. Серия: Математика. Механика. Физика 2023 Т. 15 № 4 С. 93–94
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Liudmila I. Kuzmina, Osipov, Y., Pesterev, A., International Journal for Computational Civil and Structural Engineering 2023 Vol. 19 No. 3 P. 39–48
During construction, a liquid solution of a grout or waterproof filler is pumped into porous rock to improve its properties. The filtration of a suspension moving at a variable speed in a porous medium is simulated. A one-dimensional problem of filtration in a homogeneous porous medium with a curvilinear concentration front of suspended and retained ...
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Соколов А. Ю., Soldatkina O., Вестник Российского университета дружбы народов. Серия: Юридические науки 2022 Т. 26 № 3 С. 705–724
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СПб.: Политех-Пресс, 2023.
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Vorotyntsev I. V., A. E. Rassadin, Fomin L. A. et al., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2021 Vol. 15 No. 2 P. 389–395
The experimentally studied surface morphology of films of the Heusler alloy Fe2CoAl is compared to the theory of the formation of the fractal surface of films. This theory is based on the Cauchy problem for the simplified Kardar–Parisi–Zhang equation. It is shown that for the initial fractal shape of the film it can be solved ...
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Saak A., Системный анализ в проектировании и управлении. Сборник научных трудов XXIII Международной научно-практической конференции 2019 № 3 С. 518–526
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Ponomarenko-Timofeev A., Galinina O., Andrey Turlikov et al., , in: 31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020.: IEEE, 2020. Ch. 9217339 P. 1–6.
While optimizing the system-level performance in a network of advanced high-end wearables, millimeter-wave (mmWave) medium access protocols may benefit from leveraging the information on the spatial and temporal dynamics of the radio channel. In this paper, we aim to bridge the existing gap in mmWave on-body propagation studies by analyzing the channel structure based on ...
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