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The phenomenon of oil and gas accumulation on the Beixi slope is obvious, which is one of the important directions of oil and gas pre-exploration and increasing reserves and production in the future. Taking the Beixi slope as the target area, according to the geological characteristics, the Beixi slope is divided into the differential subsidence type of the same fault depression, the reverse normal fault tilting and lifting slope and the compound slope. The evolution profile of Beixi slope is restored by using 2Dmove application software. based on the joint action of structure and deposition of Beixi slope, the fault evolution process of Beixi slope can be divided into four stages: rift stage 1 (Tongbamiao formation-N14 reflection layer), rift stage 2 (N14 reflection layer-T22 reflection layer), fault depression conversion stage (T22 reflection layer-T04 reflection layer) and depression inversion stage (above T04 reflection layer).

This article is devoted the problems of legal regulation of subsoil use in the coal industry as an example of legislation of the Russian Federation and the Kemerovo region. The concept of subsoil use, as well as the issues related to subsoil use in the coal industry are disclosed in the paper. The information about the valuation of subsoil plots containing reserves and mineral resources or possessing other utility is analyzed. The proposals on reforming the system of state regulation of subsoil use for the coal industry are given. These measures are aimed at ensuring effective use of subsoil and fair distribution of payments. The legal regulatory framework in this area was also analyzed by the authors.

The paper deals with the environmental issues of agriculture. Examples are given that pose a threat to the vital activity of living organisms from various types of agricultural and human activities. The subject of the study is the analysis of environmental issues arising from the intensification of the development of agricultural industry. Intensive agricultural activity leads to pollution of surface rivers, lakes, seas and groundwater, soil degradation and aquatic ecosystems; violation of the water regime in large areas during drainage and irrigation; desertification due to wind erosion; destruction of natural habitats of living organisms of flora and fauna. An urgent problem of agriculture is a decrease in the content of vitamins and microelements in crop production and the accumulation of harmful substances in them. The reasons for these negative processes are soil degradation, intensification of agricultural production.

This paper proposes a system of differential equations that describes changes of pressure and temperature of a stationary liquid flow through straight, turning, and branched pipeline sections. We developed a program, using the proposed system of equations, that carries through hydraulic and thermohydraulic calculations, allows to choose diameter of various pipeline systems. The key feature of the program is the ability to solve monophasic problems such as: friction losses; local resistance losses; heat dissipation into the environment; flow distribution.

At present, the main form of microgrid is AC grid. DC microgrids have received extensive attention and research with the rapid development of various DC power. The operation mode of the DC microgrid is divided into grid-connected operation and islanding operation. Islanding is formed after the circuit breaker tripped, which connects microgrid to large grid. Islanding operation can be divided into planned islanding and unplanned islanding. Unplanned islanding will cause certain harm to users and systems, so it is necessary to detect islanding accurately in the DC microgrid. This paper proposes an islanding detection method for DC microgrid based on random forest classification. Firstly, raw data is cleaned, extracted features and generated feature vector set. The extracted features include six islanding characteristic indexes, which consist of voltage, current, output active power and their first order backward difference on the DC bus side. Then, based on random forest classification, building the islanding detection model. Islanding detection model for DC microgrid can distinguish islanding event successfully and accurately. Based on weighted random forest classification, it can detect islanding event more accurately compared with decision tree classification when processing large amounts of data.

See the retraction notice E3S Web of Conferences 549, 00001 (2024), https://doi.org/10.1051/e3sconf/202454900001

Composite materials are a trend and an inspiring area of applied research today. Plant-based materials are versatile ones. Their properties can be modified with additives and processing technology to produce a very large range of products in various applications, for decking, street and garden furniture, siding, picket fences, containers and pallets and much more. The properties of wood composite materials vary greatly depending on the recipe, method and technological parameters of processing. The paper presents a solution to use the best properties of wood and thermoplastic materials. Production of an analogue of plastic based on wood raw materials is proposed. The object of study in this work were samples of composites based on polyvinyl chloride and wood flour, containing calcium-zinc stabilizers and lubricants of various brands. The research studies the influence of various brands of complex stabilizers and lubricants on the thermal stability and water absorption of composite materials based on plant raw materials.

We study distinctive characteristics of lingvo-cultural type “teacher” in educational sphere in Russian and English lingvo-cultures. A comparative analysis of the given type on three linguistic levels is presented: conceptual, perceptual and associative fields. The choice of the lingvo-cultural type “teacher” for analysis is justified by the present global situation which highlights the importance of the profession regardless of time and place. The paper consists of the 6 main sections (abstract, introduction, methods, results, discussion, and references). The body of the research includes the experiment section. We conducted a survey: an internal (among the bachelor students of Moscow Region State University) as well as an external (administered via online among the English natives). All the respondents were offered a sample questionnaire (a set of questions and prompts to collect information about a “typical” teacher’s appearance, age, gender, family status, origin, occupation, communicative behavior, etc.) Analyzing survey experimental data we came to the conclusion that the typified personalities are socially significant and vital both in the English and Russian lingvo-cultures, have fixed conceptual characteristics, recognizable and easily identified on mental and linguistic levels. Though the existing and revealed due to the experiment differences in mentality, world-view and religion between the West and Russia find their expression in a certain aloofness and detachment of an American /British teacher / professor from social life. The overall positive attitude to the image of the teacher / professor in both lingvo-cultures is connected with a high social position of this type of personality and shows an everlasting respect to the status of the mentor in the mind of English or Russian speakers. The carried out research has shown the increasing interest in linguistic personology as a new branch of linguistics. The research can be continued and advanced from the point of view of lingvo-culturology, psychology and sociology.