Operation complexity as one of the injury factors of coal miners

Abstract

Purpose is to identify regularities of miners’ injuries in the process of manufacturing operations based upon assessment of labour conditions in terms of energy intensity of a body. Methods. Analysis of the basic manufacturing operations, monitoring of a working process and functional conditions of bodies of miners, involving methods of mathematical statistics, determined the probability of injury of miners according to the value of their energy losses. Findings. It has been proved that to avoid potentially hazardous situation it is required to take into consideration energy cost of the performed operations which should correspond to psychophysical potential of miners. Conditional boundary of difficult continuous restless activities has been identified. It is 290 W being the upper boundary of energy losses. If the difficulty index is more than 290 W then the probability of injury of miners is 74%. If the index is 290 up to 464 W then the probability is 60%. Originality. A relationship between injury level of miners and difficulty of the performed operations has been identified; the relationship is assessed with the help of energy losses by their bodies. Methods to analyze accidents in terms of their situational patterns have been proposed. The methods rely upon a workplace analysis as well as activities before an adverse event and labour conditions in terms of energy losses by victims. Practical implications. Methods to identify difficulty of labour of miners and duration of compensatory breaks during work performance have been developed. The methods may be quite useful while investigating accidents, assessing labour conditions of miners, and technical documenting. Moreover, they are necessary for the development of measures making labour of miners safe.

Increasing the Insulation Properties of Filter Respirators to Protect Miners’ Respiratory Organs From Dust

“…The mining industry remains the most dangerous in the world, especially with underground mining. This is evidenced by the results of studies that are presented in the works of many scientists (Wei-ci et al, 2011;Akgün, 2015;Amponsah-Tawiah et al, 2016;Verma et al, 2017;Ajith et al, 2020;Ivaz et al, 2021;Nehrii, Volkov et al, 2022;Nehrii, Glyva et al, 2022). The occupational safety of miners depends on their working conditions, which are characterized by the factors of the production environment and labor process: difficulty of work, dustiness of the air, lighting, production noise, vibration, microclimate, and several other factors, depend-ing on the ore, including high radon exposure.…”

“…The occupational safety of miners depends on their working conditions, which are characterized by the factors of the production environment and labor process: difficulty of work, dustiness of the air, lighting, production noise, vibration, microclimate, and several other factors, depend-ing on the ore, including high radon exposure. These factors are not only harmful and dangerous for the health and life of workers, but there is also the fact that masks distract and affect the working capacity of miners (Nehrii, Volkov et al, 2022).…”

Improving the risk management process in quality management systems of higher education

“…The basis of the mentioned standards is a risk-oriented approach requiring higher education institutions to plan and perform certain actions regarding the consideration of risks and opportunities, which is the “foundation” of the effectiveness of the quality management system, the achievement of improved results and the prevention of negative impacts 10 , 11 . Hence, there is a need to develop a clear, efficient and effective risk management process, which is an urgent task due to the multifaceted nature of the problems faced by universities and a significant number of approaches that can be applied to solve them.…”

“…The standard is adapted to the so-called high-level structure, a basic structure with single main texts for the central requirements for management systems, as well as common designations and definitions, which was the basis for all management system standards. The standard considers the "Context of the organization", that is, the internal and external environment of the company, the requirements of the relevant stakeholders, the emphasis is placed on the responsibility of the top management, a risk-oriented approach is introduced, which replaces, among other things, the so-called preventive measures, hazard identification, risk assessment and opportunities An Argentine standard that explains the application of the requirements of ISO 9001 to educational institutions and the interpretation of these requirements in terms used in education prevention of negative impacts 10,11 . Hence, there is a need to develop a clear, efficient and effective risk management process, which is an urgent task due to the multifaceted nature of the problems faced by universities and a significant number of approaches that can be applied to solve them.…”

The Influence of Head Strap Elasticity on the Protective Properties of Filtering Facepiece Respirators

“…Dust in the mine atmosphere is one of the factors that is harmful and dangerous for the health and life of miners (Nehrii, Volkov et al, 2022;Nehrii, Glyva et al, 2022). The main way to reduce the level of occupational diseases of the respiratory organs of miners and to reduce the level of injuries is the implementation of preventive measures at workplaces for the effective control of dust.…”