This paper presents the results of an experiment assessing changes in the state of an occupational health and safety management system at an enterprise with low management motivation compared to an effectively functioning system by improving the professional competence of occupational health and safety specialists.

The paper characterizes the state of this system at the beginning and end of the experiment. The professional competence of occupational health and safety specialists at the enterprise was assessed using the author's method based on input criteria.

The increase in the professional competence of the subject matter specialist yielded the following results: an expansion of the list of production factors assessed; an increase in the proportion of employees who completed "real" rather than "formal" training and knowledge assessment; a solution to the problem of providing workers with effective personal respiratory protective equipment; and the participation of occupational health and safety specialists in thematic professional events.

In today's world, occupational safety and health during the operation of lifting equipment in rail transport is a high priority. This article will examine risk factors, statistics on violations and failures, propose risk assessment and mitigation methods, and develop a set of technical and organizational measures to ensure greater safety.

This article examines the potential of shooting sports as a foundation for developing stress resilience and self-control associated with firearms use. The benefits of shooting sports for children and adults are discussed. It also highlights the potential of shooting sports for developing professionally important qualities in individuals whose work involves not only law enforcement, security (including environmental protection), and defense agencies, but also those involved in making responsible decisions under emotional stress.

This paper presents an analysis of hazardous and harmful occupational factors affecting the health of mechanical assembly mechanics. The author presents an analysis of factors such as vibration and noise, the severity of the work process, injury risk, and insufficient lighting. The author also proposes improvements to the personal protective equipment (PPE) provision system.

This article examines the problems of professional burnout in the field of occupational safety through the lens of verbal communication. It systematizes the main factors that cause emotional stress in professional communication and analyzes their relationship with the risk of burnout. Particular attention is paid to the specifics of communication processes in the context of digitalization. Practical recommendations are offered for developing and improving professional communication skills, including elements of speech etiquette and strategies for reducing communication stress, aimed at preventing professional burnout and improving occupational safety.

The paper describes an approach to measuring the vibroacoustic characteristics of a combine harvester. It considers an algorithm for investigating noise in the operator's cab and within the harvester's operating zone at a distance of up to 7.5 meters. Various operating modes are analyzed, accounting for the individual noise contributions of specific components.

The article discusses the current problem of introducing health and recreational technologies into the higher education system in the context of modern challenges. The dynamics of the health status of students is analyzed, the main risk factors in the educational environment associated with digitalization and intensification of academic work are identified. The essence of the concepts of "wellness technologies" and "physical recreation" is revealed, their classification and potential application in higher education are presented. Special attention is paid to a differentiated approach to the organization of classes, the use of recreational tourism facilities and the formation of students' motivation for a healthy lifestyle as a necessary condition for the professional training of competitive specialists.

The study focuses on exploring the potential of integrating artificial intelligence (AI) into the field of occupational safety. AI is positioned as a key tool for improving industrial safety, shifting the paradigm from incident response to proactive prevention. The study examines various applications of AI, including computer vision, predictive analytics, digital twinning, behavioral pattern analysis, and integration into safety management systems.

The dangerous consequences of unhealthy eating habits and eating disorders for the health, productivity, and longevity of the working population are systematized. The rationale for using diets, dietary supplements, and specialized food products to maintain work performance, improve quality of life, and extend life expectancy is discussed.

This article presents the results of research into the development of a unified methodology for assessing industrial accidents. An analysis of statistical data on industrial injuries in Russia was conducted, identifying the main causes of accidents and their distribution by economic sector. The aim of this study is to develop a comprehensive methodology for assessing injury risks, taking into account human and technical factors. The study's results showed that 70-90% of accidents are caused by human factors. The practical significance of this work lies in the development of a methodology for assessing worker competence based on injury risk, as well as proposals for unifying statistical recording of industrial injuries.

The oil refining industry is a sector with a significant anthropogenic impact on the environment and the formation of harmful factors in the air of the working area. The article presents a comparative analysis of the efficiency of various gas cleaning equipment technologies (floating covers and pontoons, upgraded burners, scrubbers and fabric filters, light fraction capture units and breathing valves) used at four oil refineries of the Russian Federation. Using statistical data processing methods (Fisher's test of variance), the significance of differences in the efficiency of pollutants capture was assessed. The analysis results showed that at the significance level of α=0.05, the choice of a specific type of technology does not have a statistically significant impact on the variation of efficiency indicators. All the enterprises under review demonstrate a comparable high (90–98%) level of equipment with treatment equipment. It is concluded that the final impact on the air environment of the work area is homogeneous, which allows for the unification of occupational health and industrial safety measures in the industry.

An engine not only acts as a source of mechanical energy but also as a powerful generator of acoustic radiation. Its operation involves a complex set of physical processes that inevitably generate sound waves that propagate into the room's air. This phenomenon requires detailed consideration, as noise directly impacts the working conditions of personnel, the reliability of equipment, and the acoustic climate of the entire building. Understanding the nature of engine acoustic radiation opens the way to targeted noise management. The first and most effective method is to address the source directly. This involves improving engine design: using more rigid cylinder blocks, optimizing the shape of combustion chambers to reduce the rate of pressure buildup, using damping inserts in pistons and connecting rods, and implementing precision injection systems that minimize detonation.

This paper proposes informativeness metrics for methods of professional risk assessment and presents a comparative analysis of these methods. For quantitative evaluation, a relative informativeness indicator is introduced, based on the ratio of the volume of input information required for a method to the information obtained as its output. The results show that systematic methods provide the highest informativeness, whereas qualitative methods allow a rapid overview of potential hazardous events. The study demonstrates the possibility of objective method selection for a specific hazard source and technological process, enhances the efficiency of risk assessment, and serves as a foundation for the further development of hybrid and automated safety analysis tools.

This article analyzes the draft of the new professional standard "Occupational Safety Specialist" and outlines proposals for its revision. Harmonization of the new professional standard should seek synergy between regulatory requirements and the actual production capabilities of employers. Only if "safety culture" becomes not an additional functional burden on specialists, but a corporate value supported by senior management, can we expect a real reduction in the risk of occupational injuries and the sustainable development of the entire technosphere safety system in the Russian Federation.

Based on annual railcar repair reports, the probabilities of various automatic coupling failures are calculated, and a railcar decommissioning trend is plotted, with a forecast for the next three years. Modern diagnostic methods for automatic coupling devices, as well as surfacing methods for restoring worn parts, are considered. The advantages and disadvantages of surfacing methods are analyzed.

The article discusses the issue of managing the processes of repair and organization of operation of traction rolling stock (as customers of services or suppliers of products, products) at railway transport enterprises in modern conditions.

Lifecycle management of complex technical assets plays a key role in determining reliability and operational efficiency. Currently, existing automated control systems (ACS) for monitoring, controlling, and repairing freight rolling stock, in particular, collect information in real time. The sources include infrastructure safety devices, diagnostic equipment in repair shops, and maintenance centers, ultimately generating statistical data on rolling stock usage over a controlled period (month, quarter, year, etc.). Integrated information from these sources is crucial for the owner (operator) and manufacturer of rolling stock for determining and analyzing the aging of the car itself and its components from the beginning to the end of its life. The goal of this work is to develop a lifecycle management model for freight cars based on the development of a unified integrated information database, enabling the creation of a complete "digital twin." This solution also provides information for multivariate analysis, a powerful tool in car lifecycle management. The study confirms the effectiveness of this tool for solving problems involving the unified processing of disparate data stored in various automated control systems. This enables the management of the lifespan of railcars and their components, including eliminating the possibility of critical malfunctions, violations of cargo transportation requirements, and extended downtime for repairs. This model has high potential for application in the railway industry and helps improve the technical and economic efficiency of rolling stock in transportation operations.

The article discusses the types of electric braking of electric train, provides a comparative analysis of mechanical braking systems, and provides an example of the effectiveness of regenerative braking at the Omsk electric train depot.

The primary objective of this study is to analyze the structural strength of a tank boiler using mechanical calculation methods and relevant standards to ensure its safety and reliability under operating pressures and conditions. The primary goal of the strength calculation is to ensure safe operation of the boiler at operating pressures and temperatures, preventing accidents caused by material failure or structural failure. Strength calculations help determine the optimal wall thickness, stress distribution, and weld strength to avoid stress concentration, deformation, and cracking. Strength calculations help select the most appropriate materials and wall thicknesses, reducing production costs while maintaining a high level of structural safety and reliability. 

The article presents a comparative analysis of modern fin types (louvered, wavy, perforated, cellular structures) for application in radiators of shunting diesel locomotive cooling systems. Based on the systematization of data from scientific publications, the advantages and disadvantages of each type are evaluated against key criteria: heat transfer coefficient, aerodynamic resistance, fouling resistance, and manufacturability. Recommendations for selecting the fin type for various operating conditions are developed.

This article discusses the application of electric energy storage devices in the power systems of shunting diesel locomotives. The proposed circuit solutions allow for reducing the diesel fuel consumption of the locomotive and increasing the power and torque on the shaft of the locomotive's traction engine.

When designing modern braking devices, it is necessary to follow two rules: the first is to change the braking characteristics with minimal overall dimensions of structures; the second is to have a feedback control system that takes into account a large number of external factors and adapt the braking characteristics to changing operating conditions. The designs of brake devices with electromechanical drive are analyzed. As a result of the analysis, conclusions were drawn about the extremely low reliability of the electrical part of the braking devices, despite the rapid adaptation of the braking device to changing external conditions. In addition to the designs of the electromechanical brake actuator, a literary review of sources devoted to the creation of electropneumatic brake control systems was conducted. The analyzed work led to the conclusion that despite the presence of an electronic control system, the pneumatic braking system has significant inertia in operation. Based on two rules for the design of a braking device, the structure of a future braking device has been developed, which includes a base – a pneumatic system that ensures operability, and an electromechanical mechanism for regulating braking forces during braking, depending on changing external factors.