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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pugacheva I.Yu., Sid'ko A.F., Shevyrnogov A.P.
Заглавие : A study of backscattered spectra dynamics of agricultural crops during growth period on the territory of the Krasnoyarskii Krai (Russia)
Место публикации : Advances in Space Research. - 2010. - Vol. 45, Is. 10. - С. 1224-1230. - ISSN 02731177 (ISSN) , DOI 10.1016/j.asr.2009.11.020
Ключевые слова (''Своб.индексиров.''): barley--oats--spectral brightness coefficients--spectral reflectance--wheat--agricultural crops--back-scattered--data base--ecological state--field ground--growth period--optical thickness--satellite data--seasonal dynamics--space image--spatial distribution--species composition--spectral brightness--spectral curves--spectral differences--spectral reflectances--underlying surface--reflection--size distribution--crops
Аннотация: The work presents the results of the study aimed at determining the seasonal dynamics of the spectral brightness and reflectance of agricultural crops (wheat, barley and oats) in the Krasnoyarskii Krai (Russia). The analysis of spectral curves obtained through field ground measurements and from satellite data showed that fine spectral differences can be used to study the spatial distribution of various types of vegetation and their ecological state. Based on the created electronic spectral brightness data base, the possibilities are shown of using spectrophotometric information for determining morphophysiological changes occurring in the plants and their species composition. The determined contrasts can be effectively used to obtain necessary information while processing space images, which suffer from natural interferences (varying optical thickness of the atmosphere, cloudiness, alterations in the scanner's angle of view, varying solar height, and highly inhomogeneous underlying surface). В© 2010 COSPAR.
Scopus
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kudryasheva N.S., Esimbekova E.N., Kudinova I.Y., Kratasyuk V.A., Stom D.I.
Заглавие : Effects of quinones on NADH-dependent enzymatic bioluminescent systems
Колич.характеристики :5 с
Место публикации : Appl. Biochem. Microbiol.: MAIK NAUKA/INTERPERIODICA, 2000. - Vol. 36, Is. 4. - P409-413. - ISSN 0003-6838, DOI 10.1007/BF02738052
Примечания : Cited References: 13
Аннотация: The effects of a number of quinones on the bioluminescence characteristics of a three-component enzymatic system containing alcohol dehydrogenase, bacterial luciferase, and NADH-FMN oxidoreductase were studied to find the most sensitive kinetic parameters of the system intended to be used in biological testing. Both direct and back reactions catalyzed by alcohol dehydrogenase were studied in the presence and in the absence of quinones. The kinetic parameters of the bioluminescent system were found to depend on the redox potentials and concentrations of quinones. The quinone-induced effects were shown to be associated with changes in the NAD(+)/NADH ratio in the chain of NADH-dependent enzymes, The three-enzyme system based on alcohol dehydrogenase is suggested as a bioluminescence test for ecological monitoring of waste water.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chernetskiy M..., Shevyrnogov A..., Shevnina S..., Vysotskaya G..., Sidko A...
Заглавие : Investigations of the Krasnoyarsk Reservoir waters based on the multispectral satellite data
Место публикации : Adv. Space Res.: ELSEVIER SCI LTD, 2009. - Vol. 43, Is. 2. - С. 206-213. - 8. - ISSN 0273-1177, DOI 10.1016/j.asr.2008.04.002
Примечания : Cited References: 24
Предметные рубрики: CHLOROPHYLL CONCENTRATION
Ключевые слова (''Своб.индексиров.''): modis--avhrr--classification--continental water bodies--spectral variability--phytoplankton--krasnoyarsk reservoir
Аннотация: In this work historical investigations and modern results of classification of the Krasnoyarsk Reservoir are presented. The paper presents results of studying the dynamics of phytopigments and other optically active components, using multispectral satellite data. Several approaches to interpreting satellite data for optically complex inland water bodies are offered. Based on results of historical investigations it is shown that the spatial distribution of phytoplankton in the reservoir stems back to the time of its formation. Color index in the red spectral region (CIR) is introduced. A relationship between the color index and chlorophyll concentration is investigated. The CIR, derived from the AVHRR data, has been found to be related to chlorophyll concentration. Based on MODIS data, the waters of the Krasnoyarsk Reservoir have been classified in accordance with their optical spectral variability, using the technique of unsupervised Iso-Data classification. An empirical relationship between multispectral MODIS data and the ground-truth measurements of chlorophyll concentration has been found. (C) 2008 COSPAR. Published by Elsevier Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kudenko Y.A., Gribovskaya I.V., Zolotukhin I.G.
Заглавие : Physical-chemical treatment of wastes: A way to close turnover of elements in LSS
Колич.характеристики :5 с
Место публикации : Acta Astronaut.: PERGAMON-ELSEVIER SCIENCE LTD, 2000. - Vol. 46, Is. 9. - P585-589. - ISSN 0094-5765, DOI 10.1016/S0094-5765(00)00007-2
Примечания : Cited References: 14
Аннотация: Man-plants-physical-chemical unit system designed For space stations or terrestrial ecohabitats to close steady-state mineral, water and gas exchange is proposed. The physical-chemical unit is to mineralize all inedible plant wastes and physiological human wastes (feces, urine, gray water) by electromagnetically activated hydrogen peroxide in an oxidation reactor. The final product is a mineralized solution containing all elements balanced for plants' requirements. The solution has been successfully used in experiments to grow wheat, beans and radish. The solution was reusable: the evaporated moisture was replenished by the phytotron condensate. Sodium salination of plants was precluded by evaporating reactor-mineralized urine to sodium saturation concentration to crystallize out NaCl which can be used as food for the crew. The remaining mineralized product was brought back for nutrition of plants. The gas composition of the reactor comprises O(2), N(2), CO(2), NH(3), H(2). At the reactor's output hydrogen and oxygen were catalyzed into water, NH(3) was converted in a water trap into NH(4) and used for nutrition of plants. A special accessory at the reactor's output may produce hydrogen peroxide from intrasystem water and gas which makes possible to close gas loops between LSS components. (C) 2000 Elsevier Science ttd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Smolyarova, Tatyana E., Shanidze, Lev, V, Lukyanenko, Anna, V, Baron, Filipp A., Krasitskaya, Vasilisa V., Kichkailo, Anna S., Tarasov, Anton S., Volkov, Nikita
Заглавие : Protein biosensor based on Schottky barrier nanowire field effect transistor
Колич.характеристики :6 с
Коллективы : RFBRRussian Foundation for Basic Research (RFBR) [20-32-90134]; Krasnoyarsk Regional Fund of Science [20-42-243007, 20-42-240013]; Government of the Russian Feder-ation, Mega Grant for the Creation of Competitive World-Class Labora-tories [075-15-2019-1886]; RFBRRussian Foundation for Basic Research (RFBR); Krasnoyarsk Terri-tory
Место публикации : Talanta: ELSEVIER, 2022. - Vol. 239. - Ст.123092. - ISSN 0039-9140, DOI 10.1016/j.talanta.2021.123092. - ISSN 1873-3573(eISSN)
Примечания : Cited References:44. - The reported study was funded by RFBR according to the research project N? 20-32-90134. The authors thank RFBR, Krasnoyarsk Terri-tory and Krasnoyarsk Regional Fund of Science (projects nos. 20-42-243007 and 20-42-240013) and the Government of the Russian Feder-ation, Mega Grant for the Creation of Competitive World-Class Labora-tories (Agreement no. 075-15-2019-1886) for financial support. Electron microscopy investigations were conducted with the help of equipment of the Krasnoyarsk Territorial Shared Resource Center, Krasnoyarsk Scientific Center, Russian Academy of Sciences.
Предметные рубрики: SIMULATION
MODEL
Аннотация: A top-down nanofabrication approach involving molecular beam epitaxy and electron beam lithography was used to obtain silicon nanowire-based back gate field-effect transistors with Schottky contacts on silicon-oninsulator (SOI) wafers. The resulting device is applied in biomolecular detection based on the changes in the drain-source current (I-DS). In this context, we have explained the physical mechanisms of charge carrier transport in the nanowire using energy band diagrams and numerical 2D simulations in TCAD. The results of the experiment and numerical modeling matched well and may be used to develop novel types of nanowire-based biosensors.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Smolyarova T. E., Shanidze L. V., Lukyanenko A. V., Baron F. A., Krasitskaya V. V., Kichkailo A. S., Tarasov A. S., Volkov N.
Заглавие : Protein biosensor based on Schottky barrier nanowire field effect transistor
Место публикации : Talanta: Elsevier B.V., 2022. - Vol. 239. - Ст.123092. - ISSN 00399140 (ISSN), DOI 10.1016/j.talanta.2021.123092
Аннотация: A top-down nanofabrication approach involving molecular beam epitaxy and electron beam lithography was used to obtain silicon nanowire-based back gate field-effect transistors with Schottky contacts on silicon-on-insulator (SOI) wafers. The resulting device is applied in biomolecular detection based on the changes in the drain-source current (IDS). In this context, we have explained the physical mechanisms of charge carrier transport in the nanowire using energy band diagrams and numerical 2D simulations in TCAD. The results of the experiment and numerical modeling matched well and may be used to develop novel types of nanowire-based biosensors. © 2021 Elsevier B.V.
Scopus
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Tikhomirov A.A., Gitelson J.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
Место публикации : International Astronautical Federation - 55th International Astronautical Congress 2004. - 2004. - Vol. 3: International Astronautical Federation - 55th International Astronautical Congress 2004 (4 October 2004 through 8 October 2004, Vancouver) Conference code: 69653. - С. 1442-1448
Ключевые слова (''Своб.индексиров.''): biomass--body fluids--hydrogen peroxide--life support systems (spacecraft)--solid wastes--biological life support systems--intrasystem material cycle--liquid human wastes--plant biomass--waste management
Аннотация: Along with the atmosphere, water and food regeneration processes in biological life support systems it is important to provide units and links responsible for utilization of unused plant biomass, human wastes and returning, if possible, the most of wastes into the intrasystem material cycle. The experience on construction of biological life support systems (BLSS) gained by the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) allows us to suggest constructing an integrated biological-physical-chemical life support system with the biological unit predominating. It is possibly to partially mineralize urine and solid wastes by "wet incineration" by hydrogen peroxide in electric field. We suggest decomposing urea by a urease-enzymatic method using soybean or canavalia flour containing sufficient amount of urease. Consumption of 1.5 g of flour for decomposition of urea in daily urine and the possibility of producing flour from soybeans and canavalia grown inside the system make this method of urea decomposition rather prospective. Further ammonia distillation using the nitrification unit and evaporation of solution would make possible to return nitrogen and water back into the intrasystem cycle. Probably, in long-duration space expeditions the utilization of urine would be confined only by extraction of nitrogen and water from urine with further removal of dry residue to the stock, as the problem of returning sodium chloride into the intrasystem cycling has not been solved yet. As all biogenic elements contained in urine (except nitrogen) get lost at that, the solution of the problem with introducing NaCl and mineral elements into the cycle with the help of halophyte plants Salicornia europaea are of sufficient interest. This work presents the experimental results of growing Salicornia europaea on model solutions containing biogenic elements in the amounts equivalent to their content in urine and on urine, which undergone physically-chemically treatment by peroxide and ammonia distillation after urease-enzymatic decomposition. Taking into consideration that the mineral elements content in urine can vary, 2 variants of model solutions were used. In the first variant the content of P was 8-fold, S - 7-fold, K - 8-fold higher than in Knop's solution; the content of Ca and Mg almost complied with that in Knop's solution. In the variant P was 12-fold, S - 17-fold, K - 17-fold, Ca - 6-fold and Mg was 8-fold higher than in Knop's solution. The content of N and NaCl in both variants was the same and constituted 0.18 g/l and 10 g/l respectively. The results of carried experiments showed that growing plants on urine treated in the above-mentioned way is possible; though the productivity of plants would be less than on model solutions. The reasons of plant productivity drop and the possible ways of their removal have been discussed.
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