- 41. Need of technical accounting at electric energy quality reduction under conditions of AC traction substation
- (Content №3 2021)
- ... power factor are noted. Based on the calculation of additional losses from current higher harmonics in the cable line, it has been established that the current load of the line can be reduced by 10% while ...
- Created on 23 June 2021
- 42. Evaluation of hydraulic power of drilling string with a cavitation hydrovibrator
- (Content №3 2021)
- ... losses on the drill string vibration amplitudes at drill operating modes. Methodology. Methods are based on experimental and theoretical studies on the drill string dynamic parameters and the evaluation ...
- Created on 23 June 2021
- 43. Mathematical model of steel consumption minimization considering the two-stage billets cutting
- (Content №2 2021)
- ... T. (2016). The one-dimensional cutting stock problem with sequence-dependent cut losses. International Transactions in Operational Research, 23(1-2), 5-24. https://doi.org/10.1111/itor.12095. 6. Powar, ...
- Created on 29 April 2021
- 44. Regularities of safe control of piston compressor units of mobile compressor stations
- (Content №2 2021)
- ... 8.Neftegaz.ru (2017). Ukrtransgaz began operation of a mobile compressor station to reduce gas losses during gas pipeline repairs. Retrieved from https://neftegaz.ru/news/Oborudovanie/211544-ukrtransgaz-nachal-ekspluatatsiyu-mobilnoy-kompressornoy-stantsii-dlya-snizheniya-poter-gaza-pri-rem/. ...
- Created on 29 April 2021
- 45. Coefficient of local loss of mechanical energy of the flow for a mixture of charge materials
- (Content №2 2021)
- ... Abstract: Purpose. To determine the dependence of the coefficient of local losses of mechanical energy of flow of a two-component mixture of charge material on its depth, content of components, and average ...
- Created on 29 April 2021
- 46. Company business process optimization as an imperative of its economic security
- (Content №1 2021)
- ... reinsurance, effecting of an insurance agreement, forming and placing insurance funds and settlement of losses. The main structural elements of the insurers business process optimization were systemized. ...
- Created on 05 March 2021
- 47. Providing the environmental safety by increasing the efficiency of firefighting in unsheltered timber warehouses
- (Content №1 2021)
- ... 13. Hulida, E.M. (2016). Influence of fire risk on fire losses in the rooms of various facilities. Fire safety, 28, 36-42. 14. Koval, O.M. (2013). Speed of fire front spreading in open lumber ...
- Created on 05 March 2021
- 48. Method for optimization of switching frequency in frequency converters
- (Content №1 2021)
- ... in frequency converters and autonomous voltage inverters, the load of which is an asynchronous electric motor. The methodology is based on determining the dependences of static and dynamic power losses ...
- Created on 05 March 2021
- 49. Improvement of sub-level caving mining methods during high-grade iron ore mining
- (Content №1 2021)
- ... percentages and eliminate the human factor while observing the ore drawing planograms. Keywords: high-grade iron ores, sub-level caving, recovery percentages, ore losses, dilution, ore drawing, physical ...
- Created on 05 March 2021
- 50. Energy-efficient predictive control for field-orientation induction machine drives
- (Content №6 2020)
- ... when load conditions are changing, considering the nonlinearities of the main inductance. Methodology. The optimal control problem is defined as the minimization of the time integral of the energy losses. ...
- Created on 22 December 2020