- 41. Disclosure of state uncertainty of the roller chain based on cross-correlation
- (Content №1 2022)
- ... in the sliding speed of the chain joints, an increase in the friction coefficient, which is a criterion for estimation the state of the drive chain. The results of changing the friction coefficient of ...
- Created on 25 February 2022
- 42. Assessment of sudden soil faults hazard when developing a coal seam
- (Content №1 2022)
- ... layers (interlayers) of coal. Originality. A predictive indicator of the hazard of the occurrence of SFSS in the working face is proposed, a dimensionless criterion which is the product of dimensionless ...
- Created on 25 February 2022
- 43. Petrographic composition and ore potential of low-temperature metasomatites of the Middle-Dniprean mega-block of the Ukrainian Shield
- (Content №1 2022)
- ... of low-temperature metasomatic formations has been determined, which can be used as a search criterion for various types of deposits of metallic and non-metallic minerals within the Ukrainian shield. Keywords: ...
- Created on 25 February 2022
- 44. A method to evaluate the performance of an open loop geothermal system for mine water heat recovery
- (Content №1 2022)
- ... the thermal output by 5.68.3%. The estimated cooling of water during its rise in the shaft does not exceed 1C. The criterion of the geothermal system energy efficiency decreases from 1.8 when pumping close ...
- Created on 25 February 2022
- 45. Variation coefficient of torsional vibrations of the connection nodes of vibrating machines
- (Content №6 2021)
- ... and connected directions through their coefficient of variation is innovative. This made it possible to include the criterion of vibration reproduction accuracy, which is formalized through the coefficient ...
- Created on 29 December 2021
- 46. Numerical simulation of the open pit stability based on probabilistic approach
- (Content №6 2021)
- ... Technology, 7(4), 714-724. https://doi.org/10.1007/s40789-020-00337-w. 17. Wei,Y., Hanhua,T., Jiandong,N., Wei,W., & Xiaoyun,S. (2020). A new criterion for defining the failure of a fractured rock ...
- Created on 29 December 2021
- 47. Validation of the operation efficiency criteria for geothermal probes in flooded mine workings
- (Content №5 2021)
- ... the probe submerged length, thus, indicating the system profitability. The payback period can be shortened to a few years. Originality. The proposed energy criterion balances the thermal energy produced ...
- Created on 29 October 2021
- 48. Determination of vertical dynamics for a standard Ukrainian boxcar with Y25 bogies
- (Content №5 2021)
- ... V., Scherbak, Ya., Mashura, A., & Khomenko, I. (2020). Energy efficiency criterion of power active filter in a three-phase network. 2020 IEEE KhPI Week on Advanced Technology (KhPIWeek), 165-170. https://doi.org/10.1109/KhPIWeek51551.2020.9250073. ...
- Created on 29 October 2021
- 49. Forms of organization of production activity of enterprises in terms of probabilistic nature of demand
- (Content №4 2021)
- ... volumes are taken as the criterion of effect of a strategy of the manufacturer-consumer marketing interaction. Findings. Certain dependences have been obtained making it possible to calculate the maximum ...
- Created on 23 August 2021
- 50. Methodological approach to the credit worthiness estimation of counterparties at mining enterprises
- (Content №4 2021)
- ... based on a hierarchical model of structural parameters of credit worthiness estimation. The advantages of the authors development are: system flexibility at the stage of formation of criterion base and ...
- Created on 23 August 2021