- 21. Improvement of the methodology for calculating the expected drilling speed with PDC chisels
- (Content №1 2024)
- ... the depth of its penetration into the bottom hole rock. A method is proposed for calculating the depth of fracture in one revolution of a diamond carbide cutter PDC into the rock of the bottom of the well. ...
- Created on 29 February 2024
- 22. The choice of optimal methods for the development of water wells in the conditions of the Tonirekshin field (Kazakhstan)
- (Content №1 2024)
- ... 013 - 019 https://doi.org/10.33271/nvngu/2024-1/013 Abstract: Purpose. Scientific substantiation of the application of technology for the development of water wells in the conditions of the Tonirekshin ...
- Created on 29 February 2024
- 23. Establishing the influence of the quarry depth on the indicators of cyclic flow technology during the development of non-ore deposits
- (Content №1 2024)
- ... the haulage system for the development of a non-ore quarry using dump trucks and conveyor transport in combination with a mobile crushing complex, as well as a mobile crushing and sorting plant on the ...
- Created on 29 February 2024
- 24. Peculiarities of truck transportation in wartime conditions
- (Content №6 2023)
- ... on transport routes leads to the imbalance of transportation and proposes measures to reduce the level of imbalance, to approach optimal results as well as proposes the formation of multi-stage transportation, ...
- Created on 23 December 2023
- 25. Development of digital infrastructure and blockchain in Ukraine
- (Content №6 2023)
- ... set goal, various research methods, including analysis and synthesis for illuminating the economic essence of digital infrastructure, were employed as well as statistical methods for analyzing global trends ...
- Created on 23 December 2023
- 26. Dual form of education within the framework of contemporary educational trends in Ukraine
- (Content №6 2023)
- ... as well as by representatives of employers who implement a dual education system. Keywords: higher education, dual education, jobs, labor market, competitive professionals References. 1. Buchynska, ...
- Created on 23 December 2023
- 27. Structuring “education – migration – labour market” chain
- (Content №6 2023)
- ... migration on labour market outcome, economic opportunities of high-quality human capital, student professional development to avoid economic crisis were actively investigated by scientists, as well as ...
- Created on 23 December 2023
- 28. Legal provision of social protection of employees in the conditions of martial law
- (Content №6 2023)
- ... for a well-founded implementation of a dispositive approach to rules for protection of SRE is pointed out and as well as for an imperative approach to the rules that the employer must follow. It is proposed ...
- Created on 23 December 2023
- 29. Automated building damage detection on digital imagery using machine learning
- (Content №6 2023)
- ... effectively detect a substantial proportion of positive examples. Precision of 58.54 % underscores the methodology’s capability to minimize false positives. The F1 Score of 70.90 % demonstrates a well-balanced ...
- Created on 23 December 2023
- 30. Accounting for a positive, negative and zero sequences power in a three-phase unbalanced electrical system
- (Content №6 2023)
- ... negative, zero-sequences active and reactive power, as well as invariance power factor. Methodology. In the unbalance case in three-phase electrical system, the electrical energy quality is evaluated ...
- Created on 23 December 2023
- 31. A methodological approach to assessing the durability of welded structures of screens using SolidWorks Simulation software
- (Content №6 2023)
- ... a vibrator fixation system is based on the use of current software tools, in particular SolidWorks Simulation in combination with SolidWorks Motion, as well as the HOT SPOT STRESS technology. To analyze ...
- Created on 23 December 2023
- 32. Mathematical models for determining and analyzing thermal regimes in mining industry mechanism structures
- (Content №6 2023)
- ... well as to the entire structure as a whole. The resulting analytical solutions can be used to predict temperature fields in mine shafts, underground environments and mechanisms of mining equipment, in ...
- Created on 23 December 2023
- 33. Efficiency and seismic safety of constructing underground structures in complex rock masses
- (Content №6 2023)
- ... are substantiated based on changes in numerical parameters of anisotropy and fracture coefficient, as well as radius of fracture zone along the cross-section of working face. The idea of forming a shielding ...
- Created on 23 December 2023
- 34. Recycling of barite ore tailings into porcelain: microstructure and dielectric properties
- (Content №6 2023)
- ... the dielectric loss tangent decreases with increasing sintering temperature. The macroscopic permittivity of porcelains can be accurately calculated using a mixing rule, which aligns well with experimental ...
- Created on 23 December 2023
- 35. Mathematical substantiation and creation of information tools for optimal control of drilling and blasting in open-pit mine
- (Content №6 2023)
- ... the mass they comprise. To ensure timely access to data regarding the strength, fracturing characteristics of geological formations in their initial state, as well as the particle size distribution of ...
- Created on 23 December 2023
- 36. Managing the process of underground coal gasification
- (Content №6 2023)
- ... coal seam gasification. Its constituent segments are a stand, branches for supplying blast and gas-outlet mixtures, as well as a flow control system. This setup makes it possible to model the coal seam ...
- Created on 23 December 2023
- 37. Theoretical model of random freight flow distribution in the conveyor transport line of the coal mine
- (Content №6 2023)
- ... built in the form of an indicative algebraic function, whose branches are described by the normal distribution law of a random variable with separately determined parameters. It describes well the distribution ...
- Created on 23 December 2023
- 38. Critical infrastructure defense: perspectives from the EU and USA cyber experts
- (Content №5 2023)
- ... mitigating the impact of cyber-attacks, and safeguarding possible reputation damage. The study also highlights the importance of well-defined implementation methods and the organizational structure in ...
- Created on 27 October 2023
- 39. Research on an eco-safe filtration plant for wastewater treatment made of natural raw materials
- (Content №5 2023)
- ... research was used to solve the tasks. Concentration of pollutants was determined using methods of atomic adsorption spectroscopy, titrimetry and gravimetric methods, as well as pyrometric analysis. A laboratory ...
- Created on 27 October 2023
- 40. Problems of prosecution for crimes against environmental security in the conditions of martial state
- (Content №5 2023)
- ... and analytical conclusions of representatives of law enforcement agencies of Ukraine, as well as international treaties ratified in Ukraine, and proposals aimed at improving the norms were substantiated ...
- Created on 27 October 2023