- 41. Determination of the causes of rolling surface damage during operation of the railway wheels
- (Content №2 2025)
- ... Methodology. The material for study was steel from rim fragments of the railway wheels with a carbon concentration of 0.61 and 0.69 % and other chemical elements within the range of the grade composition. ...
- Created on 26 April 2025
- 42. Testing of fine classification sifter in the processing and disposal of mining waste
- (Content №2 2025)
- ... study the efficiency of fine classification in the processes of enrichment and disposal of industrial waste and to implement modern equipment for improving material separation efficiency in mining industry. ...
- Created on 26 April 2025
- 43. Determination of the harmonic distortion value of vibroacoustic signals in the process of drilling operations
- (Content №2 2025)
- ... (2): 088 - 095 https://doi.org/10.33271/nvngu/2025-2/088 Abstract: Purpose. To model and quantitatively evaluate the harmonic distortion of vibroacoustic signals during drilling operations. Methodology. ...
- Created on 26 April 2025
- 44. Investigation of the stress-strain state of mine shaft support under long-term operation
- (Content №2 2025)
- ... state of mine shaft support under long-term operation to ensure its long-term stability and safety. Methodology. The research was conducted using an integrated approach that included measurements of ...
- Created on 26 April 2025
- 45. Features of technological factors of well construction based on the example of oil and gas fields
- (Content №2 2025)
- ... with buffer fluids are proposed for consideration. These agents make it possible to rationalize the drilling process, as well as prevent the active development of deterioration in the filtration properties ...
- Created on 26 April 2025
- 46. Providing stability of quarry slopes at combined mining of mineral deposits
- (Content №2 2025)
- ... volume of overburden operations, and reinforcing areas in case of detected fractures, both visible and hidden. Methodology. The study employs a comprehensive approach that includes field geomechanical ...
- Created on 26 April 2025
- 47. Determining the limiting contour of the quarry based on minimizing the volume of the near-contour ore zone
- (Content №2 2025)
- ... parameters includes two approaches: comparison of stripping ratios (economic and technological ones) and calculating deposit value using the Lerch-Grossmann algorithm and its modifications. The shortcomings ...
- Created on 26 April 2025
- 48. Model representation of the influence of hydraulic mixture backwater in the washout chamber on the hydraulic elevator lifting height
- (Content №2 2025)
- ... to predict the efficiency of hydraulic mixture lifting under variable submersion conditions. Practical value. The research results can be used to optimize the design and operation of hydraulic elevators ...
- Created on 26 April 2025
- 49. Origin of the over consumption of cyanide during the leaching of the Amesmessa gold ore
- (Content №2 2025)
- ... N. A. (2020). Feature of sample preparation method by Richards-Chette formula in the study of representativeness and reliability of core sampling at Chukurkuduk deposit (Muntov ore field). Nauch. i Prakt. ...
- Created on 26 April 2025
- 50. Structure of the gravitational field and gravity-disturbing objects of the South Torgay sedimentary basin
- (Content №2 2025)
- ... new approaches to geological exploration, its planning and assessing the oil and gas potential of the STSB; as well as to optimize the location of exploration and appraisal wells and design wells targeting ...
- Created on 26 April 2025