Results 51 to 60 of about 126 (115)

The Hoisting Machines as Source of Higher Harmonics in Underground Mines

open access: yes
The chapter describes the structure of drive systems used in hoisting machinery of underground mines. These devices, due to their special application and power, are characterized by special traits. The most commonly used systems with DC reciprocating motors are described. The so-called complex (multi-pulse) converters are used in those solutions.
openaire   +1 more source

Comparative Analysis of Mine Shaft Hoisting Systems' Brake Temperature Using Finite Element Analysis (FEA). [PDF]

open access: yesMaterials (Basel), 2022
Popescu FD   +5 more
europepmc   +1 more source

Retrospective assessment of occupational disease trends in Russian Arctic apatite miners. [PDF]

open access: yesInt J Circumpolar Health, 2022
Syurin SA   +3 more
europepmc   +1 more source

Prediction of Material Failure Time for a Bucket Wheel Excavator Boom Using Computer Simulation. [PDF]

open access: yesMaterials (Basel), 2021
Andraș A   +5 more
europepmc   +1 more source

Advanced Static Var Generator in the Reactive Power Automatic Compensation System of an Underground Mine with a Thyristor Hoisting Machine

open access: yesEnergies
In industrial plants with dynamically varying load profiles, the problem of increased charges for over-contracted reactive power consumption is very common. To eliminate these charges, reactive power compensation systems are used. This article presents a case study of an automatic reactive power compensation system in an underground mine where a ...
Marian Hyla, Andrzej Latko
openaire   +2 more sources

A New Method for Fault Diagnosis of Mine Hoist based on Manifold Learning and Genetic Algorithm Optimized Support Vector Machine

open access: yesElektronika ir Elektrotechnika, 2012
This paper reports a new development based on the manifold learning and intelligent classifier for the nonlinear feature extraction and fault pattern recognition of mine hoists. The wavelet packet was firstly used to extract the statistic characteristics of the hoist vibrations to obtain the original feature space.
openaire   +1 more source

An Investigation of the Effects of Brain Fatigue on the Sustained Attention of Intelligent Coal Mine VDT Operators. [PDF]

open access: yesInt J Environ Res Public Health, 2022
Sun L   +6 more
europepmc   +1 more source

Innovating Occupational Safety Training: A Scoping Review on Digital Games and Possible Applications in Agriculture. [PDF]

open access: yesInt J Environ Res Public Health, 2021
Vigoroso L   +3 more
europepmc   +1 more source

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