Specific Features of Mapping Large Discontinuous Faults by the Method of Electromagnetic Emission

Abstract

In this paper, the authors consider the issue of processing the data of electromagnetic pulses (EMPs) recorded in mine workings and their interpretation. The Sami fault (Russia, the Murmansk region) was chosen as the object of the research. A number of experiments, including measuring the EMP level along the fault and the analysis of the results, were performed by the authors. The paper also presents a previously unconsidered method of transition from geological concepts to electro-technical ones, the aim of which is to identify the dependences of the amplitude of electromagnetic field anomalies on the parameters of active tectonic disturbances. The authors assumed the dependence of the amplitude of anomalies on the geological parameters of the rock mass and the thickness of the tectonic disturbance.

Trends and Challenges in Intelligent Condition Monitoring of Electrical Machines Using Machine Learning

“…Today, there are plenty of condition monitoring methods to detect failures in electrical equipment. In general, diagnostic techniques can be divided into the following groups [1][2][3][4][5] Generally, stresses that impact electrical machines' operation can be classified into four main categories, also known as TEAM (Thermal, Electric, Ambient, and Mechanical) stresses. Because of these stresses, faults tend to appear in the machine.…”

Risk-Based Methodology for Determining Priority Directions for Improving Occupational Safety in the Mining Industry of the Arctic Zone

“…When it comes to reserves of hydrocarbons, the zone's share becomes even larger. The Arctic shelf could be considered a strategic reserve for strengthening Russia's resource security [4][5][6]. The Arctic zone accounts for 90% of Russia's nickel and cobalt production, 60% of copper, over 96% of platinum metals, and around 80% of natural gas and 60% of oil production (Figure 2).…”

“…When it comes to reserves of hydrocarbons, the zone's share becomes even larger. The Arctic shelf could be considered a strategic reserve for strengthening Russia's resource security [4][5][6].…”

“…When it comes to reserves of hydrocarbons, the zone's share becomes even larger. The Arctic shelf could be considered a strategic reserve for strengthening Russia's resource security [4][5][6]. In Finland, for instance, the Elmeri method of occupational safety assessment [12] has become widely used.…”