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1.


   
    A geosteering tool for horizontal well logging / M. I. Epov [et al.] // Rus. Geol. Geophys. - 2013. - Vol. 54, Is. 9. - P. 1103-1107, DOI 10.1016/j.rgg.2013.07.022 . - ISSN 1068-7971
Кл.слова (ненормированные):
Downhole radar -- Geosteering -- Oil-water contact -- Saturated formation -- Ultrabroadband nanosecond electromagnetic pulse
Аннотация: A theoretical study has been performed to check the possibility of using ultrabroadband nanosecond electromagnetic pulses as a geosteering tool for horizontal drilling to estimate the distance to the oil-water contact (OWC) in a floating oil accumulation. The voltage of a microwave-bandwidth pulse at the dipole receiver of a downhole radar was modeled for the case of a horizontal borehole near OWC in a formation saturated with oil and water. Numerical solutions to the boundary problem formulated on the basis of the Maxwell equations were obtained with the Microwave Studio software (www.cst.com). The frequency-dependent dielectric constants of the layered saturated formation and the drilling fluid were assumed according to experimentally tested models. The modeling has demonstrated that nanosecond electromagnetic pulses arriving from a layered oil-water contact can in principle be acquired and the distance from the wellbore to the OWC median can be inferred from the respective time delays recorded by a downhole radar. Additionally, the possible dynamic range and accuracy of sensing have been estimated. В© 2013.

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Публикация на русском языке Технология геонавигации бурового инструмента в слоистой среде нефтегазового коллектора // Геология и геофизика. - 2013. - Т. 54, № 9. - С. 1404-1410

Держатели документа:
A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Koptyuga 3, Novosibirsk, 630090, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, bld. 38, Krasnoyarsk, 660036, Russian Federation
M.F. Reshetnev Siberian State Aerospace University, pr. Krasnoyarskii Rabochii 31, Krasnoyarsk, 660014, Russian Federation
Siberian Federal University, 79, pr. Svobodnyi, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Epov, M. I.; Mironov, V. L.; Миронов, Валерий Леонидович; Muzalevskiy, K. V.; Музалевский, Константин Викторович; Eltsov, I. N.; Salomatov, U. P.
}
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2.


    Epov, M. I.
    A temperature-dependent dielectric model for water- and oil-containing rocks in the frequency range from 0.5 to 15 GHz / M. I. Epov, I. V. Savin, V. L. Mironov // Russ. Geol. Geophys. - 2012. - Vol. 53, Is. 7. - P. 698-703, DOI 10.1016/j.rgg.2012.05.008. - Cited References: 17 . - ISSN 1068-7971
РУБ Geosciences, Multidisciplinary
Рубрики:
MOIST SOILS
   POLARIZATION PROCESSES

   PERMITTIVITY METHOD

Кл.слова (ненормированные):
dielectric permittivity -- effective conductivity -- water-containing rocks -- temperature-dependent dielectric model
Аннотация: Dielectric spectra of water-containing rocks forming a mineral framework of the oil-saturated bed (clay minerals amount to˂16%) were measured in the frequency range from 500 MHz to 15 GHz and in the temperature range from 20 to 80 °C. A physical model for computing spectra of the dielectric permittivity and effective conductivity of the studied rocks has been elaborated. Its input parameters are water (salt solution) content and temperature. The errors of the computed spectra relative to the measured ones are estimated.

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Публикация на русском языке Эпов, Михаил Иванович. Диэлектрическая температурная модель влажных нефтесодержащих пород в диапазоне частот от 0.5 до 15 ГГц [Текст] / М. И. Эпов, И. В. Савин, В. Л. Миронов // Геол. и геофиз. - 2012. - Т. 53 № 7. - С. 912-919

Держатели документа:
[Epov, M. I.] Russian Acad Sci, Siberian Branch, AA Trofimuk Inst Petr Geol & Geophys, Novosibirsk 630090, Russia
[Savin, I. V.
Mironov, V. L.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Mironov, V. L.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 66014, Russia

Доп.точки доступа:
Savin, I. V.; Савин, Игорь Викторович; Mironov, V. L.; Миронов, Валерий Леонидович
}
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3.


   
    Adsorption properties and catalytic activity of Fe3O4-Ag nanostructures / O. S. Ivanova, Ch.-R. Lin, I. S. Edelman [et al.] // Appl. Surf. Sci. - 2024. - Vol. 665. - Ст. 160236, DOI 10.1016/j.apsusc.2024.160236. - Cited References: 48. - The work is supported by the Russian Science Foundation (project no. 23-22-10025, https://rscf.ru/project/ 23-22-10025/) and by the Krasnoyarsk Regional Fund of Science and Technology Support. The electron microscopy and EDS investigations were conducted in the SFU Joint Scientific Center. Magnetic investigations were carried out in the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" . - ISSN 0169-4332. - ISSN 1873-5584
Кл.слова (ненормированные):
FeO-Ag nanostructures -- Nano-adsorbents -- Water purification methods -- Catalytic activity of nanoparticles
Аннотация: The morphology and magnetic properties as well as adsorption capacity and catalytic activity of Fe3O4-Ag nanoparticles synthesized by the solvothermal method were studied in dependence on the duration of the thermolysis process (3, 6, and 8 h). X-ray diffraction, transmission electron microscopy, and energy-dispersive spectroscopy measurements showed that the morphology of nanoparticles changed strongly as the duration of thermolysis increased. At 6 and 8 h duration, Fe3O4 nanocrystals grow and assemble into porous spherical globules with an Ag core (samples 2 and 3). These samples demonstrate high magnetization value and very low coercivity. The adsorption capacity of nanoparticles was studied with respect to two organic dyes: cationic methylene blue (MB) and anionic Congo red (CR). The particles showed preferential adsorption of the cationic dye. High catalytic activity towards four dyes: MB, methyl orange (MO), CR, and Rhodamine C (RhC) at the presence of NaBH4 is the remarkable property of these samples. The rate constant of the catalytic reaction was 1.4 min−1. Simultaneous exposure of CR and MO dyes to nanoparticles and NaBH4 caused their irreversible 100 % degradation while in the case of MB and RhC, a transition to their leuco form occurred.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russia
Siberian Federal University, Krasnoyarsk 660041, Russia
Department of Applied Physics, National Pingtung University, Pingtung City 90003, Taiwan
Institute of Chemistry and Chemical Technology, Federal Research Center KSC Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Lin, Chun-Rong; Edelman, I. S.; Эдельман, Ирина Самсоновна; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Zharkov, S. M.; Жарков, Сергей Михайлович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Vorobyev, S. A.; Petrov, D. A.; Петров, Дмитрий Анатольевич; Lin, En-Szu
}
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4.


   
    Amino-functionalized Fe3O4@SiO2 core-shell magnetic nanoparticles for dye adsorption / C.-R. Lin, O. S. Ivanova, D. A. Petrov [et al.] // Nanomaterials. - 2021. - Vol. 11, Is. 9. - Ст. 2371, DOI 10.3390/nano11092371. - Cited References: 35. - The authors are thankful for the financial support the Russian Foundation for Basic Research, Grant № 19-52-52002, Ministry of Science and Technology of Taiwan, Grants MOST № 108-2923-M-153-001-MY3 and № 109-2112-M-153-003-, the Russian Foundation for Basic Research with Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, the research project number 19-42-240005: “Features of the electronic structure, magnetic properties and optical excitations in nanocrystals of the multifunctional magnetic chalcogenides Fe3S4 and FeSe”. We thank also the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the Transmission Electron Microscopy studies were carried out . - ISSN 2079-4991
   Перевод заглавия: Амино-функциональные магнитные наночастицы ядро-оболочка Fe3O4@SiO2 для адсорбции красителей
Кл.слова (ненормированные):
Fe3O4@SiO2 -- core-shell nanoparticles -- magnetic properties -- water pollutions -- fluorescence -- adsorption
Аннотация: Fe3O4@SiO2 core-shell nanoparticles (NPs) were synthesized with the co-precipitation method and functionalized with NH2 amino-groups. The nanoparticles were characterized by X-ray, FT-IR spectroscopy, transmission electron microscopy, selected area electron diffraction, and vibrating sample magnetometry. The magnetic core of all the nanoparticles was shown to be nanocrystalline with the crystal parameters corresponding only to the Fe3O4 phase covered with a homogeneous amorphous silica (SiO2) shell of about 6 nm in thickness. The FT-IR spectra confirmed the appearance of chemical bonds at amino functionalization. The magnetic measurements revealed unusually high saturation magnetization of the initial Fe3O4 nanoparticles, which was presumably associated with the deviations in the Fe ion distribution between the tetrahedral and octahedral positions in the nanocrystals as compared to the bulk stoichiometric magnetite. The fluorescent spectrum of eosin Y-doped NPs dispersed in water solution was obtained and a red shift and line broadening (in comparison with the dye molecules being free in water) were revealed and explained. Most attention was paid to the adsorption properties of the nanoparticles with respect to three dyes: methylene blue, Congo red, and eosin Y. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for all three dyes. The equilibrium data were more compatible with the Langmuir isotherm and the maximum adsorption capacity was reached for Congo red.

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Держатели документа:
Department of Applied Physics, National Pingtung University, Pingtung City, 90003, Taiwan
Kirensky Institute of Physics, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Lin, C. -R.; Ivanova, O. S.; Иванова, Оксана Станиславовна; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Chen, Y. -Z.; Gerasimova, M. A.; Zharkov, S. M.; Жарков, Сергей Михайлович; Tseng, Y. -T.; Shestakov, N. P.; Шестаков, Николай Петрович; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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5.


   
    Analysis of diatom algae from the water column and bottom sediments of Shira Lake (Khakassia, Russia) / G. N. Bolobanschikova [et al.] // Contemp. Probl. Ecol. - 2015. - Vol. 8, Is. 2. - P. 173-185, DOI 10.1134/S1995425515020031. - Cited References: 23. - This work was supported by Russian Foundation for Basic Research, project no. 13-05-00429-a and the Biodiversity Program for Basic Research, Russian Academy of Sciences, project no. 30.8. . - ISSN 1995. - ISSN 1995-4263. -
РУБ Ecology

Кл.слова (ненормированные):
paleolimnology -- diatom algae -- meromictic lake -- sedimentation -- Cyclotella choctawhatcheeana -- Aulacoseira valida -- Aulacoseira ambigua
Аннотация: Lake Shira as a meromictic lake is object of interest for paleolimnological studies. In May 2011 core samples were collected from the bottom of Lake Shira and the species composition of diatom algae, which serve as bioindicators of the state of the lake, were studied. In addition, in 2012, seasonal water samples and material from sediment traps were collected and the species composition of diatoms in them was analyzed. The results of the analysis showed that the lake, like in previous years of research, was dominated by Cyclotella choctawhatcheeana Prasad. Diatoms were found twice in the studied core above the white carbonate layers and were absent in other layers. The species living in the lake at present were observed down to the first white carbonate layer, including the predominant Cyclotella choctawhatcheeana. This fact presumably proves the consistency of the species composition of diatoms and the overall stable condition of the lake since 1946 (Rogozin et al., 2005). Down to the second white carbonate layer, the dominant species were Aulcosira valida (Grunow) Krammer and Aulcosira italica (Grunow) Simonsen. Nitzchia sigmodea (Nitzsch) W. Smith and Fragilaria construens var. venter (Ehrenberg) Grunow were also observed at these depths, dating approximately to 1655-1690. These are freshwater species that belong to the diatoms of arctic, alpine, and temperate latitudes, which develop in shallow waters under moderate temperature conditions. This fact suggests that Lake Shira was less salty in the middle and end of the 17th century than today.

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Публикация на русском языке Анализ диатомовых водорослей водной толщи и донных отложений озера Шира (Хакасия, Россия) [Текст] / Г. Н. Болобанщикова [и др.] // Сиб. экол. журн. - Новосибирск : Изд-во СО РАН, 2015. - Т. 22 № 2. - С. 215-228

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Limnol Inst, Siberian Branch, Irkutsk 664033, Russia.
Krasnoyarsk State Med Univ, Krasnoyarsk 660022, Russia.
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bolobanschikova, G. N.; Rogozin, D. Y.; Firsova, A. D.; Rodionova, E. V.; Degermendzhy, N. N.; Shabanov, A. V.; Шабанов, Александр Васильевич
}
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6.


   
    Artificial closed ecosystem "man-plants" with a full regeneration of atmosphere, water and ration vegetable part / B. G. Kovrov, I. A. Terskov, I. I. Gitelzon [et al.] // 36th International Astronautical Congress : proceedings. - 1985. - Ст. IAF-85-308. - 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.

Материалы конгресса
Держатели документа:
Institute of Biophysics, USSR Academy of Sciences

Доп.точки доступа:
Kovrov, B. G.; Ковров, Борис Григорьевич; Terskov, I. A.; Терсков, Иван Александрович; Gitelzon, I. I.; Гительзон, Иосиф Исаевич; Lisovsky, H. M.; Лисовский, Генрих Михайлович; Pan'kova, I. M.; Панькова, Инна Максимовна; Trubachev, I. N.; Трубачев, Иван Николаевич; Shilenko, M. P.; Шиленко, Мария Петровна; Alekseev, S. S.; Алексеев, Сергей Степанович; Tirranen, L. S.; Тирранен, Ляля Степановна; Sidko, F. Ya.; Сидько, Федор Яковлевич; Okladnikov, Yu. N.; Окладников, Юлий Николаевич; International Astronautical Congress(36 ; 1985 ; Oct. 7-12 ; Stockholm); Международный конгресс по астронавтике(36 ; 1985 ; 7-12 сент. ; Стокгольм)
}
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7.


   
    Behavior of CaBSiO4(OH) datolite at high temperatures and pressures of a water medium / S. V. Goryainov [et al.] // Bull. Russ. Acad. Sci. Phys. - 2015. - Vol. 79, Is. 6. - P. 794-797, DOI 10.3103/S1062873815060118. - Cited References: 9. - This work was supported by the Russian Foundation for Basic Research, project nos. 13-05-00185 and 4-05-00616. . - ISSN 1062-8738
Рубрики:
Constant pressures
   Constant temperature

   High temperature

   Polymorphic transitions

   T parameter

   Tectonic plates

   Water mediums

   Silicate minerals

Аннотация: The behavior of CaBSiO4(OH) datolite compressed in a water medium at simultaneous high temperatures and pressures corresponding to the cold zones of tectonic plate subduction (up to P ~5.3 GPa and T ~250°C) is studied in situ via Raman spectroscopy. Two polymorphic transitions are found: (i) upon an increase of up to 2 GPa in pressure at a constant temperature of 22°C and (ii) upon heating to ~90°C at a constant pressure of ~5–5.3 GPa. Major trends of the variations in the Raman spectra are identified for all phases of the indicated P–T parameters. No overhydration and amorphization of datolite is observed. © 2015, Allerton Press, Inc.

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Публикация на русском языке Поведение датолита CaBSiO4(OH) при высоких температурах и давлениях водной среды [Текст] / С. В. Горяйнов [и др.] // Изв. РАН. Сер. физич. - 2015. - Т. 79 № 6. - С. 880–883

Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
University of Saskatchewan, Saskatoon, SK, Canada

Доп.точки доступа:
Goryainov, S. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Pan, Y.
}
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8.


    Goryainov, S. V.
    Behavior of natrolite zeolite and fluorapatite at high pressures in a water medium / S. V. Goryainov, A. S. Krylov, A. N. Vtyurin // Bull. Russ. Acad. Sci.: Phys. - 2013. - Vol. 77, Is. 3. - P. 313-316DOI 10.3103/S106287381303012X
Аннотация: The hysteresises (~0.3–0.4 GPa) of two transitions in natrolite at 0.9 and 1.45 GPa, considerable changes in the Raman spectra, and the appearance of very intense low–frequency mode at 75 cm–1 in the overhydrated phase of high pressure of water medium up to 6.2 GPa are observed for the first time. The depen dences of the band frequencies of this phase are nonlinear, due clearly to changes in the positions of H2 O in the channels. According to Raman data, fluorapatite placed together with natrolite in a water medium in a diamond anvil cell exhibits no transitions up to 6.2 GPa and displays linear pressure dependences of the band frequencies.

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Публикация на русском языке Поведение цеолита натролита и фторапатита при высоких давлениях водной среды. - [S. l. : s. n.]


Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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9.


   
    Bioluminescent glow of surface-water layer of the Central Arctic in spring / I. I. Gitelzon, V. S. Filimonov, V. M. Musonov // Doklady Akademii Nauk. - 1981. - Vol. 256, Is. 3. - P. 723-726. - Cited References: 7 . - ISSN 0002-3264

Держатели документа:
L.V. Kirensky Inst. Phys., Siberian Branch, USSR Acad. Sci., Krasnoyarsk, Russia

Доп.точки доступа:
Gitelzon, I. I.; Гительзон, Иосиф Исаевич; Filimonov, V. S.; Филимонов, Владимир Степанович; Musonov, V. M.
}
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10.


    Golovnev, N.
    Bridging behaviour of the 2-thiobarbiturate anion in its complexes with LiI and NaI / N. Golovnev, M. Molokeev // Acta Crystallographica Section C Crystal Structure Communications. - 2013. - Vol. 69, Pt. 7. - P. 704-708, DOI 10.1107/S0108270113014078 . - ISSN 0108-2701
Кл.слова (ненормированные):
2-thiobarbituric acid -- Coordinated water -- Dihydrates -- Edge sharing -- Hydrogen bonding interactions -- Three-dimensional networks -- Atoms -- Complex networks -- Hydrogen bonds -- Ligands -- Negative ions -- Positive ions -- Three dimensional -- Lithium
Аннотация: The structures of the LiI and NaI salts of 2-thiobarbituric acid (2-sulfanylidene-1-3-diazinane-4,6-dione, H 2TBA) have been studied. μ-Aqua-octaaquabis(μ-2- thiobarbiturato-κ2 O:O′)bis(2-thiobarbiturato-κO) tetralithium(I) dihydrate, [Li4(C4H3N 2O2S)4(H2O)9]·2H 2O, (I), crystallizes with four symmetry-independent four-coordinated LiI cations and four independent HTBA- anions. The structure contains two structurally non-equivalent LiI cations and two non-equivalent HTBA- anions (bridging and terminal). Eight of the coordinated water ligands are terminal and the ninth acts as a bridge between LiI cations. Discrete [Li4(HTBA)4(H2O)9] ·2H2O complexes form two-dimensional layers. Neighbouring layers are connected via hydrogen-bonding interactions, resulting in a three-dimensional network. Poly[μ2-aqua-tetraaqua(μ4-2- thiobarbiturato-κ4 O:O:S:S)(μ2-thiobarbiturato- κ2 O:S)disodium(I)], [Na2(C4H 3N2O2S)2(H2O) 5] n , (II), crystallizes with six-coordinated NaI cations. The octahedra are pairwise connected through edge-sharing by a water O atom and an O atom from the μ4-HTBA- ligand, and these pairs are further top-shared by the S atoms to form continuous chains along the a direction. Two independent HTBA- ligands integrate the chains to give a three-dimensional network. © 2013 International Union of Crystallography.

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Держатели документа:
Siberian State Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич
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