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The influence of solar radiation on the parameters of the polymer type test pattern, designed to adjust the optical aircraft equipment
P. 1–5.
Kondratov A. P., Nikolaev A. A., Kondratova M. A., Savenkova I.
The flexible compound materials of test objects (type test patterns) to adjust the aviation optical equipment for the Earth remote sensing obtained by the method of ink-jet printing on the banner fabric have been studied. The quantitative regularities of changes in the optical and mechanical properties have been determined, which allow predicting the maintenance of the operational characteristics of the type test pattern.
Zamyatina N., Решетникова Л. Ф., Городские исследования и практики 2026 № 3
The article demonstrates that one of the unique aspects of transport accessibility in remote areas of the Sakha Republic (Yakutia) is the systemic impossibility of providing regular transport service, which is due to both natural conditions (use of winter roads, ice crossings, etc., dependent on weather) and the sparse population density. In the latter case, ...
Added: December 15, 2025
Robert Sandlersky, , in: Reference Module in Earth Systems and Environmental Sciences.: Oxford: Elsevier, 2025. P. 1–11.
Added: February 19, 2025
Polyakova M., Ahmad Ostovari Moghaddam, Trofimova S. et al., Engineering Research Express 2024 Vol. 6 No. 4 Article 042402
There is a continuous demand to design materials with comprehensive properties as the boundaries of human works extend to new branches of technological activities. For designing parts from new materials, it is essential to consider the possible technological problems and economic aspects, however, not always the solution is evident. In this regard, multi-component high entropy ...
Added: January 12, 2025
[б.и.], 2024.
Не вышел пока сборник. ...
Added: November 1, 2024
Ibragimov U., В кн.: ИННОВАТИКА И ПРЕДПРИНИМАТЕЛЬСТВО: ТЕОРИЯ И ПРАКТИКАВып. 2.: М.: МАКС Пресс, 2022. С. 86–94.
Многие проблемы создания отрасли беспилотной авиации связаны с принципиальной новизной нарождающейся индустрии беспилотных полетов и именно поэтому не могут быть решены силами отдельных компаний, тем более небольших, составляющих основу этой сферы бизнеса. По сути, задача состоит в формировании новой отрасли и нахождении субъектов и механизмов организации взаимодействия участников новой отрасли между собой и с государственными органами. ...
Added: July 21, 2023
Yury A. Budkov, Petr E. Brandyshev, Nikolai N. Kalikin, Soft Matter 2023 Vol. 19 P. 3281–3289
Based on the random phase approximation, we develop a molecular theory of self-coacervation in zwitterionic polymer solutions. We show that the interplay between the volume interactions of the monomeric units and electrostatic correlations of charged groups on a polymer backbone can result in liquid-liquid phase separation (self-coacervation). We analyse the behavior of the coacervate phase ...
Added: April 18, 2023
Mukhangali S., Neplokh V., Kochetkov F. et al., Applied Physics Letters 2022 No. 121 Article 243504
This paper demonstrates an elastic (i.e., both flexible and stretchable) pixel matrix based on the patterned films of single-walled carbon nanotubes, which were obtained using optical lithography and plasma etching. The proposed elastic electrodes maintain their initial resistivity at 10% stretching. We also demonstrate an application of the elastic pixel matrix to an array of ...
Added: December 14, 2022
Гнесин И. Б., Металловедение и термическая обработка металлов 2020 № 6 С. 39–43
The characteristics of heat resistance and microstructure of an advanced multilayer protective coating on carbon-carbon composite materials are investigated. The thermomechanical compatibility of the coating with the base material, its thermal stability, resistance to thermal shocks and cracking were evaluated. ...
Added: October 29, 2022
Кобер П., Fokeev M., Ruzhanskaya L., Эксперт-Урал 2022 № 27 С. 3–4
Гражданская авиация России ежегодно теряет в среднем 1140 пилотов — по причине трудовой миграции и по состоянию здоровья. Таковы данные, предоставленные журналу «Эксперт-Урал» отраслевыми экспертами. ...
Added: July 4, 2022
Kondinskaia D., Kostritskii A., Antipina A. et al., Journal of Physical Chemistry B 2016
Synthetic cationic polymers represent a promising class of delivery vectors for gene therapy. Here, we employ atomistic molecular dynamics simulations to gain insight into the structure and properties of complexes of DNA with four linear polycations: polyethylenimine (PEI), poly-l-lysine (PLL), polyvinylamine (PVA), and polyallylamine (PAA). These polycations differ in their polymer geometries, protonation states, and ...
Added: October 8, 2021
Kostritskii A., Kondinskaia D., Nesterenko A. et al., Langmuir 2016
Although synthetic cationic polymers represent a promising class of effective antibacterial agents, the molecular mechanisms behind their antimicrobial activity remain poorly understood. To this end, we employ atomic-scale molecular dynamics simulations to explore adsorption of several linear cationic polymers of different chemical structure and protonation (polyallylamine (PAA), polyethylenimine (PEI), polyvinylamine (PVA), and poly-l-lysine (PLL)) on ...
Added: October 8, 2021
Gurina D., Budkov Y., Kiselev M. G., Journal of Molecular Liquids 2021 Vol. 337 Article 116424
The process of poly(methyl methacrylate) (PMMA) matrix impregnation with mefenamic acid (MFA) in a supercritical carbon dioxide medium has been studied by the full atomistic classical molecular dynamics method. Simulations have been performed for two systems that differ in the polymer sample size (≈270 kDa and ≈1080 kDa) at 333 K and 40 MPa. The characteristics of the systems, ...
Added: May 10, 2021
Nifant’ev I., Shlyakhtin A., Bagrov V. et al., Polymers 2021 Vol. 13 Article 868
Aliphatic polyesters are an important class of polymeric materials for biomedical applications due to their versatile and tunable chemistry, biocompatibility and biodegradability. A capability of direct bonding with biomedically significant molecules, provided by the presence of the reactive end functional groups (FGs), is highly desirable for prospective polymers. Among FGs, N-hydroxysuccinimidyl activated ester group (NHS) ...
Added: April 19, 2021
Sadovnichii D. N., A.P. Tyutnev, Milekhin Y. M., Russian Chemical Bulletin 2020 No. 9 P. 1607–1613
The modern state of experimental and theoretical studies of the radiation-induced conductivity and charging of polymeric dielectrics under the action of electron beams is considered. The eff ect of the molecular mobility on the transport of excess charge carriers is discussed. ...
Added: December 19, 2020
М.: МАИ, 2020.
The conference book includes abstracts which were sent to organizing committee in electronic form. ...
Added: May 19, 2020
Tyutnev A. P., Saenko V. S., Aleksey D. Zhadov et al., Polymers 2020 Vol. 12 No. 628 P. 1–10
Abstract: We have performed comparative numerical calculations using a multiple trapping (MT)
formalism with an exponential and an aggregate two-exponential trap distributions for describing
two mostly used experimental setups for studying the radiation-induced conductivity (RIC) and
the time-of-flight (TOF) effects. Computations have been done for pulsed and long-time
electron-beam irradiations in a small-signal regime. Predictions of these two approaches ...
Added: April 16, 2020
Tyutnev A., Vladimir Saenko, Aleksei Zhadov et al., Polymers 2019 Vol. 11 P. 2061(1)–2061(13)13
Abstract: Polymer dielectrics subjected to intense radiation fluxes exhibit a radiation-induced
conductivity (RIC). Polyimide is a good dielectric with excellent mechanical and thermal properties
featuring high radiation resistance currently widely used in the spacecraft industry. Its RIC has
been extensively studied in several laboratories. The purpose of the present study is to make a
direct measurement of the RIC ...
Added: December 16, 2019
Tyutnev A.P., SaenkoV.S., Zhadov A.D. et al., IEEE Transactions on Plasma Science 2019 Vol. 47 No. 8 P. 3739–3745
We have investigated the radiation-induced conductivity (RIC) in Kapton-like polymers in which it increases with an accumulating dose at large dose rates and long irradiation times. Such a behavior is very useful for spacecraft applications as it allows mitigating the spacecraft charging problems. Also, we studied ordinary polymers whose RIC steadily falls after reaching an ...
Added: March 16, 2019
Savenkova I., Kondratov A. P., Zueva A. M. et al., , in: IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING Workshop on Materials and Engineering in Aeronautics (MEA2017) Том. 312. 2017 Workshop on Materials and Engineering in Aeronautics (MEA2017)Vol. 312.: IOP Publishing, 2018. Ch. 012013 P. 1–4.
The paper shows a possibility of printing polymeric strain gages, microstrip lines, coplanar waveguides and other elements of printed electronics for aviation equipment using modern printing technologies and equipment. The technology of screen printing and inkjet printing are complemented by three new operations for preparing the sealed films to apply a layer of electrically conductive ...
Added: September 5, 2018
А.Т. П., А.Р. Тамеев, В.Г. Ш., Успехи химии 2018 Т. 87 № 10 С. 923–949
Data on the effect of electromagnetic fields on polymerization processes are analyzed and integrated. The results of
investigation of the response of polymeric systems including polymerization mixtures, polymer solutions, melts and gels to external electromagnetic fields are discussed. Mechanisms of changes in the kinetic parameters of cationic polymerization of certain monomers are considered. They are based ...
Added: July 16, 2018
М.: ФГБОУ ВО Московский авиационный институт (национальный исследовательский университет), 2018.
The conference book includes asbstracts which were sent to organizing committee in electronic form. All absrtacts are printed in the authors' version. ...
Added: May 18, 2018
Pogrebnjak A. D., Beresnev V. M., Smyrnova K. V. et al., Materials Letters 2018 Vol. 211 P. 316–318
The multicomponent nitride coatings from TiZrNbAlYCr high entropy alloy (HEA) were fabricated using the vacuum-arc method. The effect of nitrogen pressure on the crystallite size, elemental and phase composition of (TiZrNbAlYCr) N coatings was investigated. A bias voltage applied to the substrate during the deposition process was -200 V. The partial nitrogen pressure was 0.05 ...
Added: January 15, 2018