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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Kovrov B. G., Terskov I. A., Gitelzon I. I., Lisovsky H. M., Pan'kova I. M., Trubachev I. N., Shilenko M. P., Alekseev S. S., Tirranen L. S., Sidko F. Ya., Okladnikov Yu. N.
Заглавие : Artificial closed ecosystem "man-plants" with a full regeneration of atmosphere, water and ration vegetable part
Коллективы : International Astronautical Congress, Международный конгресс по астронавтике
Место публикации : 36th International Astronautical Congress: proceedings. - 1985. - Ст.IAF-85-308
Примечания : Bibliogr. at the end of the art.
Аннотация: In the present paper a description of the flow field in the base region of booster stages with clustered rocket engines is given. A flow model is derived from the bulk of available laboratory test an free flight measurements. Jet impingent theory is used for the determination of the convective heat transfer caused by the reverse flow. A comparison of the results of the present method with experimental data is followed by a discussion of its applicability and possible extension.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khrennikov D. E., Titov A. K., Ershov A. E., Klyuchantsev A. B., Pariev V. I., Karpov S. V.
Заглавие : Effect of the surface shape of a large space body on its fragmentation in a planetary atmosphere
Место публикации : Mon. Not. Roy. Astron. Soc. - 2020. - Vol. 493, Is. 1. - P.1352-1360. - ISSN 0035-8711, DOI 10.1093/mnras/staa330. - ISSN 1365-2966(eISSN)
Примечания : Cited References: 38
Предметные рубрики: LARGE METEOROIDS
Аннотация: Employing the finite element and computational fluid dynamics methods, we have determined the conditions for the fragmentation of space bodies or preservation of their integrity when they penetrate into the Earth's atmosphere. The origin of forces contributing to the fragmentation of space iron bodies during the passage through the dense layers of the planetary atmosphere has been studied. It was shown that the irregular shape of the surface can produce transverse aerodynamic forces capable of causing deformation stress in the body exceeding the tensile strength threshold of iron.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Frolov G. I., Zhigalov V. S., Bayukov O. A.
Заглавие : Phase composition of nanocrystalline iron films deposited in a nitrogen atmosphere
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 1999. - Vol. 41, Is. 10. - P1669-1671. - ISSN 1063-7834, DOI 10.1134/1.1131050
Примечания : Cited References: 14
Предметные рубрики: ELECTRON-MICROSCOPY
MOSSBAUER
Аннотация: The phase composition of iron films prepared by pulsed-plasma deposition in a controlled nitrogen atmosphere is investigated by Mossbauer spectroscopy. The observed changes in the phase composition are dictated by the nanocrystalline structure of the samples and the dynamics of the substrate temperature during film deposition. (C) 1999 American Institute of Physics. [S1063-7834(99)02110-3].
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Edelman I. S., Chou, Hsiung, Samoshkina Yu. E., Petrov D. A., Lin, Hsien C., Chan, Wen L., Sun, Shih-Jye, Zharkov S. M., Bondarenko G. V., Platunov M. S., Rogalev A.
Заглавие : Giant hydrogen effect on the structure and physical properties of ZnO and Co-doped ZnO films fabricated by the RF magnetron sputtering in Ar + H2 atmosphere
Коллективы : Russian Academy of Sciences [0356-2017-0030]; Ministry of Science and Technology of Taiwan [MOST 106-2112-M-110-001]
Место публикации : J. Magn. Magn. Mater. - 2019. - Vol. 489. - Ст.165461. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2019.165461. - ISSN 1873-4766(eISSN)
Примечания : Cited References: 39. - The work is supported by the Russian Academy of Sciences in the frames of Project No 0356-2017-0030 and by the Ministry of Science and Technology of Taiwan MOST 106-2112-M-110-001.
Предметные рубрики: MAGNETOOPTICAL PROPERTIES
OPTICAL-PROPERTIES
FERROMAGNETISM
Аннотация: ZnO and Co-doped ZnO films were synthesized by the radio frequency magnetron sputtering in mixed atmosphere of Ar + 20% O2 and Ar + 20–50% H2. The morphology, chemical composition, crystal structure, optical transmission, electrical resistance, and magnetic circular dichroism of the films were investigated. It was established that the films thickness decreased several times when Ar was partly replaced by hydrogen in the sputtering chamber. At the same time, for the Co-doped ZnO films, the increase in the relative Co content with the increasing hydrogen concentration was observed. These phenomena are explained by the formation of gaseous ZnH2 because of the hydrogen reaction with the growing films under the conditions of the high substrate temperature (450 °C) and, respectively, the decrease in the Zn component in the films. The hydrogenated Co-doped ZnO films exhibit an increase in electric conductivity and ferromagnetic behavior at room temperature. The magnetic nature of the films is explained by a combination of the intrinsic ferromagnetism (due to the formation of the Co-H-Co complex) with the inclusion of metallic Co clusters.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khrennikov, Daniil E., Titov, Andrei K., Ershov, Alexander E., Pariev, Vladimir, I, Karpov S. V.
Заглавие : On the possibility of through passage of asteroid bodies across the Earth's atmosphere
Место публикации : Mon. Not. Roy. Astron. Soc. - 2020. - Vol. 493, Is. 1. - P.1344-1351. - ISSN 0035-8711, DOI 10.1093/mnras/staa329. - ISSN 1365-2966(eISSN)
Примечания : Cited References: 32
Предметные рубрики: LARGE METEOROIDS
TUNGUSKA
DISINTEGRATION
Аннотация: We have studied the conditions of through passage of asteroids with diameters 200, 100, and 50 m, consisting of three types of materials - iron, stone, and water ice, across the Earth's atmosphere with a minimum trajectory altitude in the range 10-15 km, The conditions of this passage with a subsequent exit into outer space with the preservation of a substantial fraction of the initial mass have been found, The results obtained support our idea explaining one of the long-standing problems of astronomy - the Tunguska phenomenon, which has not received reasonable and comprehensive interpretations to date. We argue that the Tunguska event was caused by an iron asteroid body, which passed through the Earth's atmosphere and continued to the near-solar orbit.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gunell H., Amerstorfer U. V., Nilsson H., Grima C., Koepke M., Franz M., Winningham J. D., Frahm R. A., Sauvaud J. A., Fedorov A., Erkaev N. V., Biernat H. K., Holmstrom M., Lundin R., Barabash S.
Заглавие : Shear driven waves in the induced magnetosphere of Mars
Место публикации : Plasma Phys. Control. Fusion: IOP PUBLISHING LTD, 2008. - Vol. 50, Is. 7. - Ст.74018. - ISSN 0741-3335, DOI 10.1088/0741-3335/50/7/074018
Примечания : Cited References: 27
Предметные рубрики: SOLAR-WIND INTERACTION
KELVIN-HELMHOLTZ INSTABILITY
MARTIAN ATMOSPHERE
VELOCITY SHEAR
VENUS
PLASMA
MHD
IONOPAUSE
SIMULATIONS
BOUNDARY
Ключевые слова (''Своб.индексиров.''): charged particles--magnetosphere--motion estimation--natural frequencies--plasma stability--shearing machines--p ,p ,t measurements--computational results--electron densities--fundamental frequency (ff)--higher harmonics--ion densities--ion velocities--velocity shear--electrons
Аннотация: We present measurements of oscillations in the electron density, ion density and ion velocity in the induced magnetosphere of Mars. The fundamental frequency of the oscillations is a few millihertz, but higher harmonics are present in the spectrum. The oscillations are observed in a region where there is a velocity shear in the plasma flow. The fundamental frequency is in agreement with computational results from an ideal-MHD model. An interpretation based on velocity-shear instabilities is described.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Knyazev Yu. V., Tarasov A. S., Platunov M. S., Trigub A. L., Bayukov O. A., Boronin A. I., Solovyov L. A., Rabchevskii E. V., Shishkina N. N., Anshits A. G.
Заглавие : Structural and electron transport properties of CaFe2O4 synthesized in air and in helium atmosphere
Место публикации : J. Alloys Compd. - 2020. - Vol. 820. - Ст.153073. - ISSN 0925-8388, DOI 10.1016/j.jallcom.2019.153073. - ISSN 1873-4669 (eISSN)
Примечания : Cited References: 37. - The reported study was partially supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (grant #18-42-243011) and the UMNIK Program.
Аннотация: The samples with the CaFe2O4-type crystal structure were obtained by the solid-state reaction method at 1000 °C in the air and the helium atmosphere for the first time. We investigated the modification of the structural and electronic properties of the obtained samples. Mössbauer, XAFS-, XPS-spectroscopies, and dc-, ac-conductivity measurements were carried out. Mössbauer and XAFS-spectroscopies showed that the local environment of Fe and Ca cations does not change in the case of the inert atmosphere synthesis. Nevertheless, a sharp six-order increase in the electrical resistance observed at room temperature for the sample obtained in the in the helium atmosphere. Moreover, calculated from dc-conductivity data activation energy rises from 0.327 for the air-synthesized sample to 0.585 eV for helium-obtained one. This behavior indicates significant modification of in-band-gap energy structure, which correlated with thermally activated charge carriers. Our ac-conductivity measurements in the frequency range of 1 kHz–2 MHz for the CaFe2O4 obtained in the air showed the presence of defect levels in the energy band structure. Oxygen pressure reduction during the synthesis results in levels vanishing. Therefore, we suppose the key role of oxygen atoms in the transport properties of the material, which is indirectly confirmed by XPS data. In prospect, CaFe2O4 can be used in promising gas analyzers.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhigalov V. S., Frolov G. I., Myagkov V. G., Zharkov S. M., Bondarenko G. V.
Заглавие : Study of nanocrystalline nickel films deposited in a nitrogen atmosphere
Место публикации : Tech. Phys.: AMER INST PHYSICS, 1998. - Vol. 43, Is. 9. - P1130-1132. - ISSN 1063-7842, DOI 10.1134/1.1259151
Примечания : Cited References: 8
Аннотация: It is shown that high-speed condensation methods can be used to prepare nickel nitride films in the nanocrystalline state. The phase composition of the condensate formed exhibits a strong dependence on the substrate temperature. (C) 1998 American Institute of Physics. [S1063-7842(98)03109-2].
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zaitsev A. I., Cherepakhin A. V., Zamkov A. V.
Заглавие : The influence of glass obtaining atmosphere composition on nucleation and grows of the spherulites in SrO•2B2O3 glasses
Коллективы : International Conference on Crystallogenesis and Mineralogy (3; Sept. 27 – Oct. 1, 2013; Novosibirsk)
Место публикации : 3 Int. Conf. “Crystallogenesis and mineralogy”: Abstracts Vol. - Новосибирск: Изд-во СО РАН, 2013. - P.117-118. - ISBN 978-5-7692-1320-5
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Сорокин, Анатолий Васильевич, Михайлов, Михаил Иванович, Фомин, Сергей Викторович, Музалевский, Константин Викторович
Заглавие : Развитие методов использования сигналов глобальных навигационных спутниковых систем в мониторинге окружающей среды
Коллективы : "Решетневские чтения", международная научно-практическая конференция
Место публикации : Решетневские чтения: материалы XIX Междунар. науч. конф. : в 2-х ч. - Красноярск: Сибирский государственный аэрокосмический университет им. акад. М. Ф. Решетнева, 2015. - Ч. 1. - С. 310-312. - ISSN 1990-7702
Примечания : Библиогр.: 7
Ключевые слова (''Своб.индексиров.''): сигналы гнсс--дистанционное зондирование--земные покровы--океан--атмосфера--ионосфера--satellite's signal--remote sensing--land cover--ocean--atmosphere--ionosphere
Аннотация: Представлен обзор реализованных и возможных вариантов использования сигналов глобальных навигационных спутниковых систем (ГНСС) в дистанционном зондировании земных покровов, океана, атмосферы и околоземного пространства в контексте технического развития глобальных навигационных спутниковых систем.The article reviews existing and potential options in use of global navigation satellites signals (GNSS) in remote sensing the earth's cove, ocean, atmosphere and near-earth space in the context of global satellite navigation systems technical development.
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