Катагенетическая характеристика органического вещества пород Гыданской параметрической скважины

The study of dispersed organic matter of the Mesozoic sediments of the Gydan parametric well 130 (north of Western Siberia) made it possible to reveal its genesis, maceral composition, and secondary changes. Obtained information allowed reconstructing and the catagenetic zoning of the section, determining the position of the lower boundary of oil occurrence, the main zones of oil and gas generation.Исследование рассеянного органического вещества мезозойских отложений Гыданской параметрической скважины 130 (север Западной Сибири) позволило изучить его генезис, мацеральный состав и вторичные изменения, реконструировать и проанализировать катагенетическую зональность разреза, определить положение в разрезе нижней границы существования нефти, главных зон нефте- и газообразования

Symbolic-numeric approach for solving linear differential equations of the fourth order

This paper presents a symbolic-numeric approach for solving linear differential equations of the fourth order in the form of generalized power series. The working program allows to find solutions to differential equations of the fourth order in the form of power series, generally, of any order, but is limited by capabilities of a given computer. Some examples of solving differential equations of the fourth order are presented, which show the efficiency of the developed progra

Mathematical model of coordination number of spherical packing

The article considers a mathematical model of the coordination number, which allows obtaining an equation for multi component spherical packing in the entire range of its change. The resulting model can be used in both 2-d and 3-d spaces. The concept of the coordination index is introduced as a function of the inter-particle distance related to a single particle located near the central particle. The model provides unambiguous compliance between the simulated and calculated data on the coordination numbers of the spherical packin

Administrative offenses cases number assessment in the Russian regions

Reducing crime is an important objective in the Russian Federation, therefore monitoring the dynamics of offending is relevant and of research interest nowadays. The aim of the article is to analyse the number of administrative offenses cases initiated by officials in the regions of the Russian Federation, as well as the changes that have occurred in the period between 2006 and 2019. In order to obtain a stable classification, all regions of Russia were ranked according to the arithmetic average number of administrative offenses cases for the period indicated. The paper implemented the cluster analysis method to identify typical, similar regions in terms of administrative offenses. The clusters and atypical regions composition according to the number of  administrative offenses cases in the Russian Federation for the analysed period was formed. The deviations of the clusters and regions values from the average Russian level were calculated

Рассеянное органическое вещество Северо-Новоборской параметрической скважины

The study of dispersed organic matter in the section of the Severo-Novoborskaya parametric well (south of the Nenets Autonomous Area) made it possible to reveal its genesis, maceral composition, and secondary changes. Obtained information allowed reconstructing and the catagenetic zoning of the section, determining the position of the lower boundary of oil occurrence, the main zones of oil and gas generation.Исследование рассеянного органического вещества разреза Северо-Новоборской параметрической скважины (юг Ненецкого автономного округа) позволило изучить его генезис, мацеральный состав и вторичные изменения, реконструировать и проанализировать катагенетическую зональность разреза, определить положение нижней границы существования нефти, главных зон нефте- и газообразования

Single molecule detection with graphene and other two-dimensional materials: nanopores and beyond

Supramolecular & Biomaterials Chemistr