?
Скорость роста концентрации диоксида углерода в приповерхностном слое в конце ХХ века и начале XXI века
Метеорология и гидрология. 2020. № 3. С. 95–99.
Semenov S., Кузовкин В. В.
The rate of change in the concentration of CO2 in the near-surface layer of the atmosphere at the end of the 20th century is considered. at different points in the geographic space. For the analysis, we used the series of mean monthly concentrations at the monitoring stations of the Global Atmosphere Watch network. Estimates of the average rate of increase in CO2 concentration and their standard deviations were obtained for 64 stations for two periods of time. It is shown that during the periods under consideration, the growth rate slightly changes with latitude, but at the beginning of the XXI century. practically for each station significantly exceeds the value noted at the end of the XX century. Thus, the acceleration of the growth of CO2 concentration is observed everywhere despite international efforts to limit global anthropogenic emissions.
Милова П.А., The Journal of the New Economic Association 2025 Vol. 3 No. 68 P. 112–144
In this paper, we investigate the relationship between family ownership and financial performance of Russian family companies. This study is motivated by the underexplored ownership structure of Russian enterprises, which was studied mainly from the perspective of state ownership. However, the number of family-owned and operated companies in Russia is increasing. We analyzed the data ...
Added: December 12, 2025
Gnidchenko A., Журнал Новой экономической ассоциации 2025 № 1 С. 36–53
В статье изучается связь между страновыми индексами географической концентрации внешней торговли на товарных рынках с учетом и без учета дифференциации по странам- партнерам. Используются данные CEPII BACI о торговле товарами на уровне 4 знаков ТН ВЭД за 2022 г. Концентрация интерпретируется как рыночная власть стран- поставщиков или стран- покупателей, разница между концентрацией мировой торговли по ...
Added: September 19, 2025
Makaryan I. A., Sedov I., Savchenko V. I., Catalysis in Industry 2024 Vol. 16 No. 1 P. 14–38
The aim of this review is to summarize and comparatively analyze recent reports on studying carbon
dioxide conversion to methanol, dimethyl ether, and C2+ hydrocarbons, in particular, olefins, by catalytic
hydrogenation. It is shown that the main approaches to providing high activity and selectivity of these
processes are the targeted design of catalysts and the selection of conditions ...
Added: February 24, 2025
Mikhail Pomazanov, Nadezhda Loginova, , in: 9th International Scientific Conference ERAZ 2023 – Selected PapersVol. 9: ERAZ Conference – Knowlegde Based Sustainable Development: Vol 9. Selected Papers.: Beograd: Association of Economists and Managers of the Balkans, 2023. P. 51–62.
The high concentration of assets and revenues of corporations or large enterprises on a national scale represents a risk that can hinder sustainable development. For instance, in terms of a bank’s loan portfolio concentration risk is so crucial that it is a separate significant type of risk in addition to credit risk. In the proposed ...
Added: April 12, 2024
Zamolodchikov D., Kaganov V. V., Mostovaya A. S., Russian Journal of Ecology 2023 Vol. 54 No. 6 P. 584–593
The formation of an organic carbon pool in soil is determined by the balance of incoming and outgoing fluxes. The incoming fluxes are associated with the processes of dying off and further transformation of the organic matter of plants, while the outgoing fluxes are primarily formed by the processes of organic matter destruction, although in ...
Added: February 11, 2024
Khusainov F. I., Алексанова А. А., Транспорт Российской Федерации 2023 № 1-2 С. 26–31
The article analyzes the state of competition in the market for the services of railway rolling stock operators for 2020-2021. A review of theoretical concepts for assessing the level of concentration and its relationship with the level of competition is given. The level of competition was assessed using the concentration index and the Herfindahl-Hirschman index ...
Added: September 26, 2023
Kuznetsova S., Gorodishch I., Gak A. et al., Tetrahedron 2021 Vol. 82 Article 131929
Chiral titanium(IV) and vanadium(V) salen complexes were found to catalyse the synthesis of cyclic carbonates from carbon dioxide and epoxides. Reactions could be conducted at room temperature and 50 bar pressure of carbon dioxide or at 100 °C and atmospheric pressure with catalyst concentrations as low as 0.1 mol% and co-catalyst (tetrabutylammonium bromide) concentrations as low as 0.5 mol%. The cyclic carbonates ...
Added: January 31, 2023
Нефедова Т. Г., Стрелецкий В. Н., Трейвиш А., Вестник Российской академии наук 2022 Т. 92 № 6 С. 553–561
The purpose of this article is to identify the most important shifts in Russia’s socioeconomic space (with an emphasis on its polarization in the post-Soviet period), their causes, main trends, and consequences. Natural and historical roots, the main factors, and lines of polarization are analyzed. Reviews of the economic and geographical stratification of regions and ...
Added: January 31, 2023
Kraev G., Belonosov A., Veremeeva A. et al., Remote Sensing 2022 Vol. 14 No. 15 Article 3662
Most methane (CH4) and carbon dioxide (CO2) emissions originate from the biodegradation of organic matter of soils and of degrading permafrost in the Arctic. However, there is limited evidence of the activity of geological sources, and little understanding of the pathways of migration of gaseous fluids through the porous mineral matrix filled with ice. We ...
Added: October 26, 2022
Zamolodchikov D., Каганов В. В., Мостовая А. С., Лесоведение 2022 № 4 С. 339–350
The formation of a soil organic carbon pool is determined by the balance of incoming and outgoing fluxes. The incoming fluxes are associated with the processes of dying off and further transformation of the organic matter of plants, the outgoing fluxes are primarily formed by the processes of organic matter destruction, although in many ecosystems ...
Added: October 25, 2022
Чуканова О. М., Шеверденкина О. Г., Капашаров А. Т. et al., Кинетика и катализ 2022 Т. 63 № 5 С. 559–571
Синтез циклических бис-карбонатов из СО2 и диэпоксидов проведен в присутствии саленовогокомплекса хрома(III). Впервые исследовано влияние условий реакции на кинетику процесса, кото-рую регистрировали по поглощению СО2 в ходе реакции. После полной конверсии диэпоксидов вциклический бис-карбонат с использованием той же каталитической системы была проведена реакция бис-карбонатов с диаминами с формированием полигидроксиуретанов. Термические характеристики синтезированных полимеров определяются в ...
Added: October 7, 2022
Savchenko V. I., Zimin Y. S., Nikitin A. V. et al., Journal of CO2 Utilization 2021 Vol. 47 Article 101490
A kinetic and thermodynamic analysis of CO2utilization through non-catalytic dry (carbon dioxide) reforming of light hydrocarbons C1- C4in the temperature range of 1400-1800 K is performed. The sequence of stages of transformation of hydrocarbons into syngas and corresponding time intervals are determined. In this temperature range, methane is successively pyrolyzed into ethylene and then acetylene, ...
Added: October 3, 2022
Klepikov V. P., Klepikova L. V., Energy Reports 2022 Vol. 8 No. Supplement 9 P. 586–592
Oil is an important product in the world energy sector, while its refinement has a significant impact on the development of the world economy. Europe’s is among the leading oil refinement sectors worldwide. Therefore, developing European refineries’ capacity is an important political and economic objective. The purpose of this study is to identify trends in ...
Added: July 30, 2022
Gorikhovskii V.I., Нагнибеда Е. А., Vestnik St. Petersburg University: Mathematics 2019 Vol. 52 No. 4 P. 428–435
In this paper considers algorithms for calculating vibrational energy exchange rate coefficients for collisions of carbon dioxide molecules are considered. For numerical modeling of CO2 vibrational kinetics in the state-to-state approach, it is necessary to solve a system of several thousands of differential equations for level populations of three vibrational CO2 modes at an each step of ...
Added: October 28, 2021
Gorikhovskii, V. I., Нагнибеда Е. А., Vestnik St. Petersburg University: Mathematics 2020 Vol. 53 No. 3 P. 358–365
Numerical modeling of nonequilibrium state-to-state carbon dioxide kinetics is a challenging time-consuming computational task that involves solving a huge system of stiff differential equations and requires optimized methods to solve it. In the present study, we propose and analyse optimizations for the Extended Backward Differential Formula (EBDF) scheme. Using adaptive timesteps instead of fixed ones ...
Added: October 28, 2021
Gorikhovskii V., Nagnibeda E., IOP Conference Series: Materials Science and Engineering (MSE) 2020 Vol. 927 Article 012007
Numerical modeling of nonequilibrium state-to-state carbon dioxide kinetics is a computationally complex problem requiring the solution of a huge system of stiff differential equations. In the present study, we use parallel numerical scheme, based on the extended backward differential formula with adaptive timestep strategy. Using this scheme, we study the contribution of various types of ...
Added: October 28, 2021
Kondratyeva N., Современная Европа 2019 № 4 С. 73–85
Based on the official materials, the current trends in the agricultural policy of the EU are analyzed with an emphasis on the aspects of concentration and competition poorly studied in Russian European studies. The article monitors the penetration of competitive norms in the system of organization of the single agricultural market. The author evaluates the ...
Added: October 13, 2021