Titanium-based alloys are widely used as structural materials in the aviation industry for the manufacture of components and parts belonging to the α+β alloy class. Electroexplosive alloying (EEA) is a promising method for protecting the surface of parts made from these alloys. This treatment simultaneously improves the physical, mechanical, and operational properties, including microhardness, heat and wear resistance under abrasive wear and dry sliding friction, and resistance to fretting corrosion. Further improvements in the properties of the material's surface layer and the product as a whole are achieved through combined treatment, combining EEA with subsequent electron beam treatment (EBT) of the modified surface. Compared to the widely used laser technology, electron beam technology offers greater control and regulation of the amount of energy supplied, is characterized by localized energy distribution in the near-surface layer of the material being processed, and exhibits a high efficiency.

Physical modeling of rock pressure manifestations during the development of blind adjacent ore deposits using the chamber-and-pillar mining system was carried out using equivalent materials applied to the Sheregeshevskoye iron ore deposit. The initial data for the selection of equivalent materials were the results of a study of the physical and mechanical properties of rocks and ores of the Sheregeshevskoye deposit by VostNIGRI.

This paper examines the origin and development of life within the ancient Siberian continent of Angarida. Geochronologically, this interval largely coincides with the Devonian period of the Paleozoic era (416–359 million years ago). At the beginning of this period, Angarida was a separate continent in the Earth's northern hemisphere. Adjacent to the south were the continents of Europe, Kazakhstan, and China. The vast supercontinent of Gondwana lay in the equatorial and southern parts of the planet. This paleogeography predetermined a significant delay in the onset of colonization of Angarida compared to the continents further south.

The extraction and processing of solid minerals, the construction of underground structures, and the extraction of building materials all involve the destruction of large volumes of rock (in Russia, billions of cubic meters per year). A variety of machines and mechanisms are designed to break rock; such processes require enormous amounts of energy and money.

A safety device is installed in the upper part of the working cylinder of steam-air hammers. This device is designed as an additional cylinder within which a piston rod moves. The piston rod extends into the cavity of the hammer's working cylinder. When the piston is displaced by impact with the piston rod, a pneumatic cushion is created within the enclosed space of the safety device cylinder.

Energy conservation is one of the most important global challenges. One of the most common ways to address this issue is by insulating heat-generating equipment and systems. Unfortunately, there is currently no accurate information about the thermal conductivity of special thermal insulation refractories. The data provided by manufacturers is often distorted, with "complementary" and inflated values. Therefore, it is important to develop a methodology that allows for the analytical determination of the thermal conductivity of refractory.

The collection units of coke oven and chemical plants (COPP) produce significant amounts of harmful emissions into the atmosphere, which are characterized by a multi-component composition, the presence of sulfur- and nitrogen-containing compounds, water vapor, mono- and polycyclic aromatic hydrocarbons, including carcinogenic substances, sublimated naphthalene, ammonium sulfate, etc. High concentrations of harmful substances in vapor-air flows and the presence of numerous components in the emissions with low MAC values, low air vent heights and, accordingly, poor dispersion conditions - all this determines the significant impact of emissions from air vents on air pollution in the workplace and around the production facility, which determines the urgency of the task of their reduction.

Mechanochemical processing (MCP) has long been used in chemistry and chemical engineering, not only for grinding solids but also for activating chemical processes. This method is most often used in solid-phase chemical synthesis. This is due to the fact that classical solid-phase thermal synthesis is typically determined by slow diffusion processes, which means they occur at low rates and require long periods of exposure at high temperatures.

A significant (three to four times) reduction in the time required to create large automated complexes, increased requirements for their technical and economic performance, the increasing complexity of automation systems, and the need to put them into operation from the moment the process equipment is commissioned have prompted a search for new approaches to planning, development, and implementation of these complexes.

Problems of control system analysis and synthesis are typically solved using modeling methods. From a practical standpoint, an important task in studying control systems using any class of controlled object models is the transfer of these research results to actual control systems and their components, including input (controlled and uncontrolled) signals. Such transfer will be justified if the similarity between the control systems of the actual object and its model is demonstrated.

The main sources of centralized water supply in our country are surface water, accounting for 65-70%. It should be noted that virtually all surface water sources have been significantly impacted by harmful anthropogenic factors in recent years. Due to increased pollution, traditional water treatment technologies are often ineffective. The primary treatment method for most water treatment plants is a classic two-stage purification process, including coagulation, sedimentation or clarification in a suspended sediment layer, filtration, and chlorine disinfection.

The problem of air protection is particularly acute in coke production. During high-temperature pyrolysis of coal and subsequent capture and processing of chemical coking products, an average of 5.2–8.0 kg/t of coke of specific harmful emissions into the atmosphere is formed.

The system of remuneration and incentives for workers in underground coal mines must provide an answer to the question of performance evaluation criteria that will enhance labor motivation and guarantee a high degree of protection against the occurrence and manifestation of emergency situations.

Today, a significant number of domestic enterprises are represented by companies linked by the same owners into large holdings. One of the most important factors in the sustainable development of holdings and the creation of a favorable economic environment in the Russian Federation is the timely response of enterprises to emerging changes and disturbances in the external environment (economic, environmental, political, market, etc.). In most cases, holding company management is guided by established decision-making models and accumulated experience. However, in today's rapidly changing environment, such an approach complicates a comprehensive analysis of emerging problems and the corresponding monitoring of implemented improvements. The complexity of a holding's structure and production processes, as well as the unpredictability of external disturbances, make it difficult to implement changes without appropriate management mechanisms and corresponding decision-making procedures. The most in-demand and relevant approach currently lies in the search for a comprehensive change management toolkit. This should ensure a timely and adequate response to changes in the external environment, the achievement of set goals, the elimination of uncertainties, and a reduction in subjectivity in management decisions. The result of using these tools is an increase in the holding's profitability, its investment attractiveness, and, accordingly, the creation of preconditions for improving the Russian economy's performance and the quality of life of the population.

One of the main trends in the modern development of Russian higher education is improving the quality of education. Universities are currently actively working in this direction, implementing a quality management system aligned with international and Russian ISO-9000 standards. Quality control involves quantitative measurements of the intermediate and final results of library processes. Therefore, one of the first challenges a university library faces when creating a quality management system is the development of indicators that can be used to evaluate the library's efficiency and quality.

Research into the theoretical constructs of charitable activity is of general scientific and practical importance. This is because, over the past 20 years, charitable activity in Russia has come to be viewed as a sociocultural phenomenon that contributes to the realization of spiritual revival and the growth of national self-awareness. When examining charitable activity as a historical cultural phenomenon, it is appropriate to draw on the works of scholars from the pre-revolutionary, Soviet, and modern periods who have studied the phenomenon of philanthropy in Russia.

The rapid development of communications technologies observed at the turn of the century significantly facilitated the production and dissemination of socially significant information, marking the beginning of the emergence of a truly global information space. By connecting millions of people, modern communications have gained the ability to dictate behavioral standards, shape and formulate public opinion, and focus individuals' efforts on achieving socially significant goals. By transmitting previously unimaginable volumes of information, they now exert a significant influence not only on individual users, as was the case at the dawn of computer networks, but on various aspects of society as a whole, including political relations. The development of communications, which became the foundation of the information society, has significantly changed the nature of political communication, and the widespread use of computer networks has led to the emergence of political technologies that allow this process to reach a qualitatively new level.