- 21. Determination of the harmonic distortion value of vibroacoustic signals in the process of drilling operations
- (Content №2 2025)
- ... the operating modes of a drilling rig during the drilling of a well, in particular for determining the quantitative assessment of the evolution of the bit-stick-slip effect, which differs from the known ...
- Created on 26 April 2025
- 22. Features of technological factors of well construction based on the example of oil and gas fields
- (Content №2 2025)
- ... factors of drilling, flushing during drilling, stabilization of wellbore walls, as well as opening of productive horizons in difficult mining and technical development conditions at different stages of ...
- Created on 26 April 2025
- 23. Origin of the over consumption of cyanide during the leaching of the Amesmessa gold ore
- (Content №2 2025)
- ... 6. Wu, B., Shang, H., Wen, J. K., Liu, M. L., Zhang, Q. D., & Cui, X. L. (2020). Well-controlled stirring tank leaching to improve bio-oxidation efficiency of a high sulfur refractory ...
- Created on 26 April 2025
- 24. Structure of the gravitational field and gravity-disturbing objects of the South Torgay sedimentary basin
- (Content №2 2025)
- ... mass centers, as well as the extent, shape, and intensity of anomalous bodies and their burial depths. In the depth range of 30–150 km, a pronounced block heterogeneity of the STSB's lithosphere is observed, ...
- Created on 26 April 2025
- 25. Human capital as a driver of the formation of Ukraine’s competitive advantages in the post-war period
- (Content №1 2025)
- ... (CA) in the post-war period. To establish to what extent the quality of HC meets the goal of gaining CA, to identify factors of positive and negative impact of war and crisis on human capital as well as ...
- Created on 25 February 2025
- 26. Commercialization of NTU “KhPI” innovations with digital marketing tools in the experience economy
- (Content №1 2025)
- ... research and development unit, the technology park, as well as external and internal events that facilitate the commercialization of innovative projects. The study highlights that digital marketing, with ...
- Created on 25 February 2025
- 27. Automatic compensation of the mill roll eccentricity in terms of limited speed of hydraulic compression devices
- (Content №1 2025)
- ... mill as well as a comprehensive model of a rolling process in a quarto mill with rolling movement and an automatic thickness control system (ATCS) that compensates for eccentricity. The study was conducted ...
- Created on 25 February 2025
- 28. Assessing criteria for casting and deformation suitability of metals and alloys
- (Content №1 2025)
- ... initial stages of new alloys or technologies elaboration for products from them manufacturing as well as their quantitative scales for preliminary assessment (prognosis) of alloys processing feasibility ...
- Created on 25 February 2025
- 29. Feasibility assessment of low-grade iron ore from El Ouenza mine by high-intensity magnetic separation
- (Content №1 2025)
- ... mainly of ferrous minerals, notably hematite and goethite, as well as a siliceous and calcareous gangue. The treatment results enabled us to achieve a grade of 51.94 % for the sample calcined at 900 °C ...
- Created on 25 February 2025
- 30. Well operation by plunger rod pumps in difficult conditions
- (Content №1 2025)
- ... 2025, (1): 022 - 027 https://doi.org/10.33271/nvngu/2025-1/022 Abstract: Purpose. Research and optimization of the processes of operation of wells equipped with plunger rod pumps in conditions with increased ...
- Created on 25 February 2025
- 31. Predicting the geofiltration processes within the closed quarry zone in difficult technogenically disturbed conditions
- (Content №1 2025)
- ... problems is applied, in the course of which the adequacy of reflecting the hydrodynamic conditions of the studied area in the geofiltration model has been determined, as well as the predicted rates and ...
- Created on 25 February 2025
- 32. Improved techniques for exploration of groundwater deposits for conditions of rural areas of the Mangystau Peninsula
- (Content №1 2025)
- ... which will allow finding sources of groundwater with acceptable mineralization with a minimum number of drilled wells. Methodology. The assigned tasks were solved using a comprehensive research method, ...
- Created on 25 February 2025
- 33. Ensuring operational efficiency of mining and metallurgical enterprises on the basis of sustainable development
- (Content №6 2024)
- ... 1. Katina, P. F., Cash, C. T., Caldwell, L. R., Beck, C. M., & Katina, J. J. (2023). Advanced manufacturing management: A systematic literature review. Sustainability, 15(6), 4702. https://doi.org/10.3390/su15064702. ...
- Created on 28 December 2024
- 34. Automated student knowledge testing and control system ZELIS
- (Content №6 2024)
- ... receive input data through the Internet, which is relevant in the conditions of martial law, as well as when testing students’ knowledge during the educational process without additional use of laboratory ...
- Created on 28 December 2024
- 35. The impact of urbanization on socio-economic development: the experience of Poland, Spain and Ukraine
- (Content №6 2024)
- ... and well-being. To carry out such an analysis, statistical methods were used, namely regression analysis, which is used to identify the relationship between urbanization and economic indicators. The use ...
- Created on 28 December 2024
- 36. Technogenic hazards coefficient of sand-resin mixtures in foundry manufacturing
- (Content №6 2024)
- ... resins. Ecological and sanitary-hygienic hazard level when using resin mixtures increases with increasing resin amount in mixture, castings walls thickness, their surface area, as well as with increasing ...
- Created on 28 December 2024
- 37. Apparent power place in the instantaneous power of a linear quadripole with a sinusoidal current
- (Content №6 2024)
- ... researchers use provided that other power components are determined. Based on the analysis of known studies, some were found, in which the authors question such a role in apparent parent. The well-known ...
- Created on 28 December 2024
- 38. Improving the efficiency of street lighting electrical systems
- (Content №6 2024)
- ... years ahead, as well as when developing an energy-efficient smart control system for the electrotechnical complex of lighting complex. Methodology. Creating an effective intelligent outdoor lighting ...
- Created on 28 December 2024
- 39. Active power regulation in wind turbines
- (Content №6 2024)
- ... conditions for realizing the maximum power mode as well as the possibilities of using the speed regulation range of the wind turbine to limit excessive mechanical loads during wind gusts were determined. ...
- Created on 28 December 2024
- 40. Technology optimization for processing of raw materials from heterogeneous carbonate deposits
- (Content №6 2024)
- ... process have been determined; the mineral composition of the fractional marketable product has been studied; the parameters of limestone compressive strength, as well as energy absorption rates in the ...
- Created on 28 December 2024