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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tikhomirov A. A., Gitelzon I. I., Ushakova S. A., Kovaleva N. P., Tikhomirova N. A., Gribovskaya I. V.
Заглавие : The possible way of introducing mineral elements of liquid human wastes into the material cycle in biological life support systems
Коллективы : International Astronautical Congress, Международный конгресс по астронавтике
Место публикации : 55th International Astronautical Congress: proceedings. - 2004. - Ст.IAC-04-G.4.06
Примечания : Bibliogr. at the end of the art.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lopatin V. N., Shepelevich N. V., Prostakova I. V.
Заглавие : Modelling optical properties of organic-mineral complexes in water ecosystems
Место публикации : J. Phys. D. - 2005. - Vol. 38, Is. 15. - P.2556-2563. - ISSN 0022-3727, DOI 10.1088/0022-3727/38/15/005
Примечания : Cited References: 22
Предметные рубрики: SCANNING FLOW-CYTOMETRY
LIGHT-SCATTERING
STRATIFIED SPHERE
PARTICLES
INDEX
Ключевые слова (''Своб.индексиров.''): approximation theory--ecosystems--inverse problems--light scattering--mathematical models--refractive index--suspensions (fluids)--water--generalization--integral light scattering indicatrix--organic-mineral complexes--spherical particles--complexation
Аннотация: Characteristics of organic-mineral complexes have been theoretically and experimentally studied in the paper, based on the method of integral light scattering indicatrix. Modelling of optical properties was realized using models of the coated spherical particles with a shell which is constant and changeable in the refractive index profile. General regularities have been revealed and generalized parameters for the method of integral light scattering indicatrix have been suggested.
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Вид документа : Статья из сборника (однотомник)
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Автор(ы) : Vereshchagin S.N., Vereshchagina T.A., Solovyov L.A., Shishkina N.N., Vasilieva N.G., Anshits A.G.
Заглавие : Solid-phase transformation of Cs+- and Sr2+-bearing zeolite sorbents derived from cenospheres to mineral-like forms
Место публикации : Materials Research Society Symposium Proceedings. - 2009. - Vol. 1193: 32nd Symposium on Scientific Basis for Nuclear Waste Management (24 May 2009 through 29 May 2009, St. Petersburg, ) Conference code: 79940. - С. 87-94. - ISBN 02729172 (ISSN); 9781605111667 (ISBN)
Ключевые слова (''Своб.индексиров.''): apparent activation energy--cenospheres--crystalline minerals--crystalline phasis--crystallization temperature--higher temperatures--long-term disposal--multi phase systems--pollucites--principal components--solid-phase transformation--temperature range--thermal treatment--thermochemical transformations--transformation temperatures--xrd analysis--activation energy--atmospheric pressure--cesium--crystalline materials--crystallization--fly ash--metallic glass--radioactive waste disposal--radioactive wastes--silicate minerals--sodium--sorbents--sorption--strontium--synthesis (chemical)--waste management--atmospheric temperature
Аннотация: The paper describes the studies of the transformation of Cs+- and Sr2+-containing zeolite sorbents synthesized from fly ash cenospheres to crystalline mineral composition, suitable for the long-term disposal. Series of Cs+- and Sr2+-exchanged NaP1-containing sorbents were subjected to the thermochemical transformation in the temperature range 40-1100°C at atmospheric pressure in air and the progress of reaction was monitored by DSC and XRD analysis. It was shown that initial sodium zeolite undergoes two-step transformation at 736-785°C and 892-982°C forming nepheline as the principle product, with the conversion temperatures being dependant on the heating rate. The thermal treatment of Cs+-bearing zeolite sorbent led to formation of a complex multiphase system, the principal components of which were nepheline and pollucite. Increasing cesium content in the samples led to a monotonous shift of crystallization peak to the higher temperature range (1005-1006°C). A more complicated behavior was observed for Sr2+-containing samples, for which the crystallization temperature tends to increase (compared with NaP1) at lower Sr contents, but it starts decreasing parallel to the Sr2+ content at Sr2+ loadings 10 mg/g. The principal crystalline phases in Sr-NaP1 sample conversion were nepheline and Sr2+- containing feldspar, the quantity of which increased parallel to the increase of strontium content in zeolite. Apparent activation energies of thermochemical transformations were calculated and possible approaches to reduce transformation temperature are discussed and experimentally illustrated. © 2009 Materials Research Society.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zabluda V.N., Sokolov A.E., Edelman I.S.
Заглавие : Magnetic circular dichroism of mineral oil solutions
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Уральское отделение РАН
Место публикации : IV Euro-Asian Symposium "Trends in MAGnetism" Nanospintronics (EASTMAG-2010). School for young scientist "Spintronics": June 28 - Lule 2, 2010"Book of abstracts. - Ekaterinburg, 2010. - P.254
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mironov V. L., Molostov I. P., Scherbinin V. V.
Заглавие : Dielectric model of a mineral arctic soil thawed and frozen at 0.05-15 GHz
Место публикации : International Siberian Conference on Control and Communications (SIBCON) (MAY 21-23, 2015, Omsk, RUSSIA): IEEE, 2015. - С. 2684-2687. - ISBN 978-1-4799-7103-9
Примечания : Cited References:11
Ключевые слова (''Своб.индексиров.''): dielectric model--temperature dependence--dielectric relaxation--soil--arctic regions--remote sensing
Аннотация: The dielectric model for an arctic soil both thawed and frozen has been developed. The model is based on the soil dielectric measurements carried out in the ranges of gravimetric moisture from 0.01 to 0.43 g/g, dry soil density from 1.25 to 1.83 g/cm(3), and temperature from 25 to -30 degrees C (cooling run), in the frequency range 0.05-15 GHz. To fit the results of measurements of the soil complex dielectric constant as a function of soil moisture and wave frequency, the refractive mixing dielectric model in conjunction with the Debye multi-relaxation equations were applied. As a result, the spectroscopic parameters of dielectric relaxations for the bound, transient bound, and unbound soil water components were derived, being further complimented with the thermodynamics parameters to ensure a complete set of parameters of the temperature dependent multi-relaxation spectroscopic dielectric model for moist soils proposed. To calculate complex dielectric constant of soil, the following input variables have to be assigned: 1) density of dry soil, 2) gravimetric moisture, 3) wave frequency, and 4) temperature. The error of the dielectric model was evaluated in terms of RMSE, yielding the values RMSE of 0.53 and 0.43 for the soil dielectric constant and loss factor, respectively. These values appeared to be in the order of the dielectric measurement error itself. The dielectric model suggested can be applied in the active and passive remote sensing techniques in microwave to develop algorithms for retrieving soil moisture and freeze/thaw state of the topsoil in the Arctic regions.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Muzalevskiy K. V., Lukin Y. I.
Заглавие : Effects of organo-mineral structure of arctic topsoil on the own thermal radiation in the L-band
Коллективы : International Siberian Conference on Control and Communications
Место публикации : Int. Sib. Conf. on Control and Communicat. (SIBCON 2015): Proceedings: IEEE-Institute Electrical and Electronics Engineers, 2015. - ISBN 9781479971022 (ISBN), DOI 10.1109/SIBCON.2015.7147152
Ключевые слова (''Своб.индексиров.''): artic tundra--mineral soil--organic soil--permafrost--smos--soil temperature--atmospheric humidity--balloons--heat radiation--landforms--luminance--minerals--permafrost--permittivity--radiation effects--soils--temperature--artic tundra--mineral soils--organic soil--smos--soil temperature--soil surveys
Аннотация: In this paper, the influence of organic-mineral Arctic tundra soils on own thermal radiation in the L-band was theoretically investigated. For modeling of brightness temperature there were used semi-empirical L-band Microwave Emission of the Biosphere (L-MEB) model. An integral part of this model is permittivity models of tundra organic and mineral soils, which links the brightness temperature with moisture, temperature and density of soil. The permittivity models were developed based on the measurements of the organic rich and mineral soil samples collected at the Vaskiny Dachi weather station test-site in Yamal peninsular. As a result, the potential error of soil temperature retrieval in case of layered and homogeneous organic-mineral soil are shown based on simulated brightness temperature at 1.4 GHz. © 2015 IEEE.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Muzalevskiy K. V., Lukin Y. I.
Заглавие : Effects of Organo-Mineral Structure of Arctic Topsoil on the Own Thermal Radiation in the L-band
Место публикации : International Siberian Conference on Control and Communications (SIBCON) (MAY 21-23, 2015, Omsk, RUSSIA): IEEE, 2015. - ISBN 978-1-4799-7103-9
Примечания : Cited References:5
Ключевые слова (''Своб.индексиров.''): smos--organic soil--mineral soil--soil temperature--permafrost--artic--tundra
Аннотация: In this paper, the influence of organic-mineral Arctic tundra soils on own thermal radiation in the L-band was theoretically investigated. For modeling of brightness temperature there were used semi-empirical L-band Microwave Emission of the Biosphere (L-MEB) model. An integral part of this model is permittivity models of tundra organic and mineral soils, which links the brightness temperature with moisture, temperature and density of soil. The permittivity models were developed based on the measurements of the organic rich and mineral soil samples collected at the Vaskiny Dachi weather station test-site in Yamal peninsular. As a result, the potential error of soil temperature retrieval in case of layered and homogeneous organic-mineral soil are shown based on simulated brightness temperature at 1.4 GHz.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Mironov V. L., Molostov I. P., Scherbinin V. V.
Заглавие : Dielectric model of a mineral arctic soil thawed and frozen at 0.05-15 GHz
Коллективы : International Siberian Conference on Control and Communications
Место публикации : Int. Sib. Conf. on Control and Communicat. (SIBCON 2015): Proceedings: IEEE-Institute Electrical and Electronics Engineers, 2015. - P.1-7. - , DOI 10.1109/SIBCON.2015.7147146
Ключевые слова (''Своб.индексиров.''): arctic regions--dielectric model--dielectric relaxation--remote sensing--soil--temperature dependence--dielectric relaxation--moisture--remote sensing--soil moisture--soils--temperature--temperature distribution--thawing--thermodynamics--active and passive remote sensing--arctic regions--complex dielectric constant--dielectric modeling--soil dielectric constant--spectroscopic parameters--temperature dependence--thermodynamics parameters--soil surveys
Аннотация: The dielectric model for an arctic soil both thawed and frozen has been developed. The model is based on the soil dielectric measurements carried out in the ranges of gravimetric moisture from 0.01 to 0.43 g/g, dry soil density from 1.25 to 1.83 g/cm3, and temperature from 25 to -30°C (cooling run), in the frequency range 0.05-15 GHz. To fit the results of measurements of the soil complex dielectric constant as a function of soil moisture and wave frequency, the refractive mixing dielectric model in conjunction with the Debye multi-relaxation equations were applied. As a result, the spectroscopic parameters of dielectric relaxations for the bound, transient bound, and unbound soil water components were derived, being further complimented with the thermodynamics parameters to ensure a complete set of parameters of the temperature dependent multi-relaxation spectroscopic dielectric model for moist soils proposed. To calculate complex dielectric constant of soil, the following input variables have to be assigned: 1) density of dry soil, 2) gravimetric moisture, 3) wave frequency, and 4) temperature. The error of the dielectric model was evaluated in terms of RMSE, yielding the values RMSE of 0.53 and 0.43 for the soil dielectric constant and loss factor, respectively. These values appeared to be in the order of the dielectric measurement error itself. The dielectric model suggested can be applied in the active and passive remote sensing techniques in microwave to develop algorithms for retrieving soil moisture and freeze/thaw state of the topsoil in the Arctic regions. © 2015 IEEE.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Музалевский, Константин Викторович, Миронов, Валерий Леонидович
Заглавие : Восстановление влажности и температуры талых минеральных почв на основе многочастотных наблюдений в полевых условиях радиояркостной температуры в микроволновом диапазоне частот
Место публикации : Изв. вузов. Физика: Томский государственный университет, 2015. - Т. 58, № 8/2. - С. 39-41. - ISSN 0021-3411
Примечания : Библиогр.: 3. - Работа выполнена в рамках государственного задания Минобрнауки РФ № 2.914.2014/K, при поддержке «Красноярского краевого фонда поддержки научной и научно-технической деятельности» проект №8, и проекта II.12.1.1 СО РАН
Ключевые слова (''Своб.индексиров.''): микроволновая радиометрия--минеральные почвы--температура почвы--влажность почвы--microwave radiometry--mineral soil--soil temperature--soil moisture
Аннотация: В данной работе с использованием поляриметрических наблюдений радиояркостной температуры на двух углах 25 и 45 и частотах 1,4ГГц и 10,7ГГц, предложен метод измерения влажности почвы в слое толщиной 0-2см и 2-5см, а также температуры поверхностного слоя почвы на глубине 3cm. Предложенный метод основан на полуэмпирической модели радиотеплового излучения и температурно-зависимой диэлектрической модели минеральных почв, которая в настоящее время используется при интерпретации данных измерений космического аппарата SMOS.In this paper, using the polarimetric observations of brightness temperature at the frequencies of 1,4GHz and 10,7GHz and at the viewing angles of 25 and 45, there is provided a method for soil moisture retrieving on the different depth of 0-2cm and 2-5cm in topsoil, and for soil temperature at the depth of 3cm. The proposed method is based on a semi-empirical model of microwave bare soil emission and temperature-dependent dielectric model of thawed mineral soil, which is currently used in the SMOS spacecraft.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Музалевский, Константин Викторович, Миронов, Валерий Леонидович, Лукин, Юрий Иванович, Савин, Игорь Викторович
Заглавие : Влияние неравномерного пространственного распределения органических и минеральных типов почв, а также водных объектов на погрешность измерения температуры почвы с использованием радиометрических наблюдений в l-диапазоне
Место публикации : Изв. вузов. Физика: Томский государственный университет, 2015. - Т. 58, № 10/3. - С. 22-24. - ISSN 0021-3411
Примечания : Библиогр.: 4. - Работа выполнена при поддержке Министерства образования и науки РФ, соглашение №14-607-21-0039
Ключевые слова (''Своб.индексиров.''): микроволновая радиометрия--smos--арктическая тундра--минеральные почвы--органические почвы--температура почвы--влажность почвы--microwave radiometry--arctic tundra--mineral soil--organic soil--soil temperature--soil moisture
Аннотация: В данной работе теоретически исследована погрешность восстановления температуры, влажности и шероховатости поверхности почвы при неравномерном пространственном распределении органических, минеральных типов почвенного покрова, а также водных объектов в пределах площадки зондирования, на основе модельных данных поляриметрических наблюдений угловых зависимостей радиояркостной температуры на частоте 1,4ГГц с использованием диэлектрических моделей органической и минеральной почвы. Показано, что при вариации доли водных объектов на площадке зондирования от 0% до 20%, лишь для мерзлых почв достигается удовлетворительная погрешность измерения температуры почвы. In this paper we have theoretically investigated influence of inhomogeneous spacial distribution of organic, mineral soils, and open water in satellite footprint on error of soil temperature retrieval. In this paper, we have theoretically investigated influence of inhomogeneous special distribution of organic, mineral soils, and open water in satellite footprint on error of soil temperature retrieval on basis of multi-angular brightness temperature observations at 1.4GHz. It is shown that at varying of open water fraction in the area range from 0% to 20%, only in case of frozen soil, the error of soil temperature retrieval is satisfactory.
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