- 1. Substantiation of rational design parameters of a crusher with two movable jaws
- (Content №5 2024)
- ... of application of double-jaw crushers. The obtained dependences of the change in the angle of inclination and the working surface of the jaw over a period make it possible to develop a rational mode of ...
- Created on 29 October 2024
- 2. On the issue of load’s external ballistics under low-speed transportation
- (Content №4 2024)
- ... The obtained analytical and graphical dependences with the provision of appropriate assessments of the applied approach make it possible to establish the correlation of methods and results. Originality. ...
- Created on 28 August 2024
- 3. Sorption capacity and natural gas content of coal beds of Donbas
- (Content №4 2024)
- ... that asymptotically approaches to 1 at pressures above 6 MPa. Practical values. The obtained dependences of the relative gradient of gas content on depth and gas pressure for various grades of metamorphism ...
- Created on 28 August 2024
- 4. The environmental effectiveness of humate reagent in internal and external hydro-filling of quarries
- (Content №3 2024)
- ... processes of binding dust particles in the dust and gas cloud, as well as the effect of neutralizing explosive gases. Originality. Dependences of the concentration of humate reagent in internal and external ...
- Created on 28 June 2024
- 5. Effect of circumferential lean of pump-turbine runner blades on energy characteristics
- (Content №3 2024)
- ... the dependences of the efficiency curves and heads on flow rate at different values of guide vane openings are shown. Originality. The influence of circumferential lean (spatial profiling) of the runner ...
- Created on 28 June 2024
- 6. Determining the parameters of the functioning for a nonlinear ballistic system in a real external environment
- (Content №2 2024)
- ... analysis and modeling have been used for the problem formulation considering studied environmental parameters. Findings. Analytical dependences of the nonlinear problem of ballistics and application ...
- Created on 01 May 2024
- 7. Influence of relaxation on filtering microflows under harmonic action on the layer
- (Content №2 2024)
- ... depending on the frequency of the harmonic action, the ratio of the piezoconductivity coefficients of the layer, and the relaxation time. Profiles of the dependences of the size of the influence zone on ...
- Created on 01 May 2024
- 8. Optimization mathematical model of a contact air cooler for a mine turbocompressor
- (Content №5 2023)
- ... depending on the initial conditions and operating modes of the turbocompressor. The adequacy of the theoretical studies was proved on a specially designed experimental setup. The obtained dependences make ...
- Created on 27 October 2023
- 9. Evaluation of coal mines’ rock mass gas permeability in the equivalent stress zone
- (Content №5 2023)
- ... of a methane-saturated coal mass during the mining of coal seams and the determination of technogenic gas deposit boundaries are justified. Dependences of the current and final gas permeability on the ...
- Created on 27 October 2023
- 10. Influence of drilling mud pulsations on well cleanout efficiency
- (Content №5 2023)
- ... studied, and graphical dependences of their influence on the decrease in the volume of rock particles in the annular space have been obtained. Originality. Based on the results of experimental studies, ...
- Created on 27 October 2023
- 11. Study on explosion in different cross-sectional shape charge cavity in tensile stress field
- (Content №3 2023)
- ... by tensile stresses and explosion action promotes opening of main cracks both parallel and perpendicular to cut direction. Dependences of propagation of main cracks caused by an explosion in model under ...
- Created on 27 June 2023
- 12. Increasing the energy efficiency of modes of distribution networks with photovoltaic stations
- (Content №1 2023)
- ... the characteristic regularities of changes in the spectrum and amplitudes of higher harmonic components depending on the level of inverter loading. Hyperbolic dependences of the change in the sinusoidal ...
- Created on 25 February 2023
- 13. Modeling of drilling water supply wells with airlift reverse flush agent circulation
- (Content №1 2023)
- ... parameters and their changes in the upward flow of the mixture is proposed. A model has been developed that allows analyzing the dependences of the air flow rate, the density of the mixture and the rate ...
- Created on 25 February 2023
- 14. Geomechanical substantiation of parameters for safe completion of mining the coal reserves adjacent to main workings
- (Content №1 2023)
- ... and maintain the conditions for their safe operation. Originality. New dependences of influence of the extraction sites on the main working network stability depending on the texture and mechanical properties ...
- Created on 25 February 2023
- 15. Substantiation of research results on energy efficiency of basalt crushing
- (Content №6 2022)
- ... in order to identify the results obtained and determine the dependences of technological parameters on the mechanical impact factors. Experimental studies are carried out on the example of basalts from ...
- Created on 25 December 2022
- 16. Energy efficient technologies for the mining industry
- (Content №6 2022)
- ... in the form of the main parameters that determine the efficiency of technological processes with hydro pulse exposure. The calculation dependences of values are presented of the cavitation parameter for ...
- Created on 25 December 2022
- 17. Forecasting the technical efficiency of mobile workover rigs
- (Content №5 2022)
- ... to indirectly assess its technical efficiency. Procedures for obtaining and processing input information, analytical dependences for establishing the components of the mathematical model and its solution ...
- Created on 30 October 2022
- 18. Classification of heating conditions in terms of smart control of indoor heating with the use of uncontrolled electric heaters
- (Content №4 2022)
- ... Abstract: Purpose. To reduce specific energy consumption for heating municipal and industrial buildings by introducing smart indoor temperature control taking into consideration individual dependences ...
- Created on 29 August 2022
- 19. The electrical power quality indicator – interference power factor
- (Content №4 2022)
- ... Using a combination of direct and sinusoidal (pulsating) current, the dependences of the invariance power factor on the ratio of direct and alternating components are obtained. Findings. Taking ...
- Created on 29 August 2022
- 20. Flat problem to determine the forces of destruction of pieces n disintegrators while being grabbed in thick layer
- (Content №3 2022)
- ... Abstract: Purpose. Research on analytical dependences of destructive stresses, acting on a piece of non-isometric shape at quasi-static deformation of a relatively thick layer of rock ...
- Created on 29 June 2022