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Anthropic activities involve the extraction of the transformation and use of natural resources. During the process of extraction at the surface or underground of useful minerals, particles or gases resulting from the natural rocking or release from the rock mass appear in the working environment. The process of transforming useful mineral substances is carried out on the surface in enclosed enclosures, involving the use of complex technological processes. During the course of these technological processes, explosi...

Stress agents are only potentially stressful, generating psychological stress only under certain conditions, even if some of them are able of generating stress reactions in most individuals. Therefore, effects of stressors depend not only on their own characteristics but also on attributes of the subject receiving their action such as quality and breadth of emotional responses, adaptive strategies available and mobilized in the created interaction etc. Specific responses to a situation that potentially endangers l...

The activity of evaluation and verification of industrial ventilation installations has a strong preventive role in terms of explosion risk mainly due to the fact that of the three determining elements that can lead to an explosion phenomenon, ventilation installations can determine the presence of two elements namely the presence of fuel (gases, vapors, dusts, mists) and the source of initiation (hot surface, flame, sparks of mechanical origin, electrical sparks, static electricity, etc.). The development of expe...

This research describes such a problem as increasing the productivity of wells and the oil recovery coefficient by conducting various geological and technical measures, which based on correlation, regression, and statistical analyzes. These methods allow to analyse a possible interconnection of two or more numbers of indicators, also identifying the problematic well stock, and selecting a set of measures aimed at improving the efficiency of field development, including various geological and technical measures. Ex...

Background: the exposure to high levels of vibrations could induce health problems resulting in the damage of joints, muscles, other than pathologies connected to the circulation and the sensory nerves. These phenomena are often related to the use of machines that require high efforts, repetitive movements, or not ergonomic postures. Methods: 13 Radial Arm Polisher Machines (RAPM) of different manufacturers and different ages were investigated in order to analyze the vibrations produced during a whole process of m...

Occupational diseases linked to noise risk are still one of the most important employment problems, particularly in the quarry activities. Many negative effects on human health can arise after long exposure to noise in an occupational context. To protect workers' health and prevent hearing problems, employers must provide to workers with hearing protection equipment. In recent years, however, there have been many problems with the use of hearing protection devices. These have a highly mitigating effect but can iso...

The purpose of this paper is to determine the rate of methane (explosive gas ) and of carbon dioxide (axphysants gas ) in the mine workings of Praid salt mine. Currently in Romania there are six salt mines which exploit the salt through underground mine workings: Praid salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Dej salt mine. Of these six, in three salt mines occurred gas and salt eruptions: Praid salt mine, Slanic Prahova salt mine and Tg. Ocna salt mine....

A ventilation system is defined by performing air exchanges between the indoor and outdoor environment with the purpose of creating environmental conditions as close to the required thermal comfort conditions. Before installing a fan, it is necessary to analyze the space in which it is to be used and the method of compensating the exhaust air (mechanically with another fan or naturally with dimensioned grids). The most important factors to consider when choosing a fan are: the volume of the space, the number of sh...

Conveyor belts are used for a long period of time in the industry branches where potentially explosive atmospheres could occur. The use of conveyor belts in industrial spaces with danger of explosive atmospheres, implies fulfilling by these of certain safety requirements, in order to prevent the ignition sources of explosive atmospheres. The need to provide the highest level of protection in the industrial spaces with danger of explosive atmospheres led, on the one hand, to the use of conveyor belts with adequate ...

The article focuses on studying new Baltic amber processing technologies. This topic is relevant primarily for regions where amber is being mined commercially, including for the Kaliningrad region of Russia, where the largest industrial amber deposit in the world is located, developed by one enterprise ? the Kaliningrad Amber Factory. Having a specific production structure with a large share of amber for pressing and amber for chemical processing against the background of increasing amber production, the Kaliningr...

Both surface but especially underground rescue activities in industrial environments presenting risk of explosive / flammable or toxic gases, are difficult because of major risk of fires or explosions in a very short time. Dense smoke can make rescue work even more difficult and time becomes an extremely important factor, especially when workers are caught in the affected area and it is assumed that they could be alive. The technological development of last years has allowed the miniaturization of equipment and oc...

The greatest destruction of the soil cover and natural landscapes occurs during the development of the field by open pit mining. As a result of the development of the field, a complete change in the relief occurs, disruption of water and air balances, which leads to disruption of the ecosystem as a whole. To stabilize the state of the environment, it is necessary to implement a set of environmental, economic and social measures to restore environmental components. In this case, it is necessary to take into account...