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Книжкові видання та компакт-дискиЖурнали та продовжувані виданняАвтореферати дисертаційРеферативна база данихНаукова періодика УкраїниТематичний навігаторАвторитетний файл імен осіб
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| Знайдено в інших БД: | Книжкові видання та компакт-диски (1) | Журнали та продовжувані видання (2) | Реферативна база даних (9) |
Список видань за алфавітом назв: Авторський покажчик Покажчик назв публікацій  |
Пошуковий запит: (<.>A=Safranov T$<.>) | |||
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Загальна кількість знайдених документів : 9 Представлено документи з 1 до 9 |
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| 1. | 
Glushkov A. Advanced modeling and forecasting of pollutant concentrations temporal dynamics in the atmosphere of an industrial city (gdansk region) [Електронний ресурс] / A. Glushkov, T. Safranov, O. Khetselius, G. Prepelitsa, Y. Bunyakova, N. Bykowszczenko // Environmental problems. - 2016. - Vol. 1, Num. 2. - С. 105-110. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2016_1_2_5 In the paper we present the results of an advanced investigation of dynamics of variations of the atmospheric pollutants (sulphur dioxide) concentrations in the air basins of Polish industrial cities (Gdansk region) by using the improved non-linear prediction and chaos theory methods. Chaotic behavior of the sulphurous anhydride concentration time series at two sites in the city of Gdansk has been computed. As usually, to reconstruct the corresponding chaotic attractor, it is necessary to determine time delay and embedding dimension. The former is determined by the methods of autocorrelation function and average mutual information, and the latter is calculated by means of the correlation dimension method and algorithm of false nearest neighbours. Further, the Lyapunov exponents' spectrum, the Kaplan - Yorke dimension and the Kolmogorov entropy and other invariants are calculated. An existence of a low-D chaos in the cited system is confirmed and using polynominal algorithm with neural networks block allows making an improved short-term forecast of the atmospheric pollutant fluctuations dynamics. | ||
| 2. |
Glushkov A. Analysis and forecast of the environmental radioactivity dynamics based on the methods of chaos theory: general conceptions [Електронний ресурс] / A. Glushkov, T. Safranov, O. Khetselius, A. Ignatenko, V. Buyadzhi, A. Svinarenko // Environmental problems. - 2016. - Vol. 1, Num. 2. - С. 115-120. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2016_1_2_7 For the first time, we present a completely new technique of analysis, processing and forecasting of any time series of the environmental radioactivity dynamics, which schematically is as follows: a) general qualitative analysis of a dynamical problem, typical environmental radioactivity dynamics (including a qualitative analysis from the viewpoint of ordinary differential equations, the "Arnold-analysis"); b) checking for the presence of chaotic (stochastic) features and regimes (the Gottwald-Melbourne's test; the correlation dimension method); c) reducing the phase space (the choice of time delay, the definition of the embedding space by the correlation dimension methods and false nearest neighbours algorithms); d) determination of the dynamic invariants of a chaotic system (computation of the global Lyapunov dimension <$E lambda sub alpha>; determination of the Kaplan - Yorke dimension <$E d sub L> and average limits of predictability Pr | ||
| 3. |
Safranov T. Water resources of Ukraine: usage, qualitive and quantitative assessment (with detail description of Odessa region) [Електронний ресурс] / T. Safranov, N. Berlinskyi, A. Volkov // Environmental problems. - 2016. - Vol. 1, Num. 2. - С. 121-128. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2016_1_2_8 | ||
| 4. |
Safranov T. Principles of Justification of Regional Programmes of Municipal Solid Waste Treatment [Електронний ресурс] / T. Safranov, T. Shanina, V. Prykhodko, M. Shynkarenko // Environmental problems. - 2018. - Vol. 3, Num. 4. - С. 224-229. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2018_3_4_5 It is the scientific justification of the regional programme of the municipal solid waste treatment (MSW) with the example of Odessa region which will promote the increase is environmental safety of the population, reduction of the negative impact on the environment by the improvement and modernization of the existing system of MSW treatment with final achievement of a "zero waste" state due to the transfer of the maximum amount of waste into the liquid secondary raw materials, alternative source of energy and environmentally-friendly organic-mineral fertilizer. Such approach differs essentially from the existing developments of regional programmes of MSW treatment and has a scientific - methodical and practical value. | ||
| 5. | 
Chugai A. V. A technogenic load on the environmental components during the formation and accumulation of the waste in the North-Western Black Sea regions [Електронний ресурс] / A. V. Chugai, T. A. Safranov // Екологічна безпека та природокористування. - 2020. - Вип. 1. - С. 5-17. - Режим доступу: http://nbuv.gov.ua/UJRN/ebpk_2020_1_3 | ||
| 6. |
Mykhailenko V. The problem of evaluation of individual persistent organic pollutants emissions from road transport (Illustrated by the case of Odessa industrial-and-urban agglomeration) [Електронний ресурс] / V. Mykhailenko, T. Safranov // Environmental problems. - 2022. - Vol. 7, Num. 1. - С. 39-46. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2022_7_1_9 One of the main environmental polluters, especially in large cities of Ukraine, is road transport. In particular, road transport is one of the main sources of persistent organic pollutants in the environment. Therefore, monitoring of air pollution by road transport is one of the most relevant questions in Ukraine, especially considering its intentions to join the European Union. Analysis of the regulatory and legislative frameworks of Ukraine shows that, unfortunately, today, there are no regulatory documents that motivate to reduce the load of mobile sources, including road transport, on the environment. Moreover, even though the only methodology for calculating pollutant emissions from mobile sources expired in 2015, no new methodology has been developed yet. This paper calculates the masses of pollutants formed during the combustion of gasoline and diesel fuel, and proves the necessity to take into consideration persistent organic pollutants when assessing the toxicity of exhaust fumes, considering their cumulative effect and half-life. The calculation was performed according to European and national (Ukrainian) methodologies, which are supplemented by the calculation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans formation. Using the relative hazard factor, the relative masses of these substances are calculated, the obtained masses of all components of the exhaust fumes are ranked, the contribution of each component to the toxicity of emissions is revealed. Using emission factors, the specific emissions of these persistent organic pollutants during the combustion of diesel fuel, gasoline, liquefied and compressed gases are calculated. By the results, the types of organic fuels with the highest priority for use by mobile sources are identified. | ||
| 7. |
Khetselius O. Studying an Air Ventilation and Pollution in an Atmosphere of Industrial City: Elements of New Modeling Approach and Green-City Technology [Електронний ресурс] / O. Khetselius, A. Glushkov, T. Safranov, V. Buyadzhi, Y. Bunyakova, A. Romanova // Environmental problems. - 2017. - Vol. 2, Num. 3. - С. 151-156 . - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2017_2_3_9 We develop the elements of a new generalized approach to natural air ventilation of the industrial city. It is based on the Arakawa-Shubert and Glushkov models which allow to give a quantitative reliable modelling an unsteady turbulence in the urban area and atmospheric ventilation dynamics. To calculate the air circulation for the cloud layer arrays, penetrating into the territory of the urban area, we apply the methods of a plane complex field theory. The method allows to calculate the convection parameters and shifting cumulus cloud ensemble from surrounung regions. An advanced mathematical method for modelling an unsteady turbulence in the city's area is developed and applied. As illustrative example, we apply our approach to computing the ventilation potential and current function for typical (quite simplified) sinopticl situation for the territory of the Odessa city. | ||
| 8. |
Glushkov A. Modeling Evolutionary Dynamics of Complex Ecosystems Using Combined Chaos Theory and Neural Networks Methods: I. Formal Theoretical Basis for Application To Environmental Radioactivity Dynamics [Електронний ресурс] / A. Glushkov, O. Khetselius, T. Safranov, V. Buyadzhi, A. Ignatenko, A. Svinarenko // Environmental problems. - 2017. - Vol. 2, Num. 3. - С. 157-164 . - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2017_2_3_10 We present elements of the formal mathematical approach to the analysis, modeling and further prediction of the nonlinear dynamics of chaotic systems based on the methods of nonlinear analysis and neural networks. As the object of studing is the environmental radioactivity dynamics. Using such a combined method is proposed for the first time in the environmental radioactivity dynamnics studying. Use of the information about the phase space in the simulation of the evolution of the physical process in time can be considered as a major innovation in the modeling of chaotic processes in the complex systems. This concept can be achieved by constructing a parameterized nonlinear function F(x, a), which transform y(n) to y(n + 1) = F[y(n), a], and then use different criteria for determining the parameters a. Firstly to build the desired functions it is offered using the wavelet expansions. Further, since there is the notion of local neighborhoods, we can create a model of the process occurring in the neighborhood, at the neighborhood and by combining together these local models to construct a global non-linear model to describe most of the structure of the attractor. | ||
| 9. |
Mykhailenko V. Management efficiency for certain types of plastic waste [Електронний ресурс] / V. Mykhailenko, D. Shelinhovskyi, T. Safranov // Environmental problems. - 2023. - Vol. 8, Num. 4. - С. 224-230. - Режим доступу: http://nbuv.gov.ua/UJRN/envpr_2023_8_4_7 | ||
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