- 1. Research on stochastic properties of time series data on chemical analysis of cast iron
- (Content №4 2024)
- ... https://doi.org/10.20998/2222-0631.2022.01.14. 10. Zaika, V. I., & Kyshenko, V. D. (2012). Forecasting the operation of the defecosaturation station using the theory of deterministic chaos. Visnyk ...
- Created on 28 August 2024
- 2. Enhanced oil recovery of deposits by maintaining a rational reservoir pressure
- (Content №4 2024)
- ... the reservoir area significantly increases the reservoir pressure above the pressure of oil saturation with gas. Due to the significant elasticity of the rock and fluids under high reservoir pressure, ...
- Created on 28 August 2024
- 3. Research on occurrence features and ways to improve the quality of productive hydrocarbon horizons demarcation
- (Content №3 2024)
- ... the specific features of the structure of the productive strata of B-18 and B-19 horizons were evaluated as well as the nature and degree of saturation, the filtration-capacity characteristics of the seams. ...
- Created on 28 June 2024
- 4. Testing the fragmentation of railway ballast material by laboratory methods using Proctor compactor
- (Content №1 2024)
- ... K. (2017). The effect of saturation degree of cement paste on fair-faced concrete surfaces. Építöanyag (Online), (2), 55. https://doi.org/10.14382/epitoanyag-jsbcm.2017.10. 15. Kuchak, A. J. T., Marinkovic, ...
- Created on 29 February 2024
- 5. Advantages of using CONCRETE CANVAS materials in railway track construction
- (Content №1 2024)
- ... 9. Károlyfi, K. (2017). The effect of saturation degree of cement paste on fair-faced concrete surfaces. Építöanyag, (2), 55. https://doi.org/10.14382/epitoanyag-jsbcm.2017.10. 10. Kuchak, A. J. T., ...
- Created on 29 February 2024
- 6. Alternative uses for crushed stone products generated to meet the raw material needs of asphalt production in Hungary
- (Content №5 2023)
- ... of Mineral Deposits, 17(1), 74-83. https://doi.org/10.33271/mining17.01.074. 10. Károlyfi, K. (2017). The effect of saturation degree of cement paste on fair-faced concrete surfaces. Építöanyag (Online), ...
- Created on 27 October 2023
- 7. Reducing the formation of asphaltene deposits and increasing the flow rates of oil wells
- (Content №5 2023)
- ... reservoir. It is also necessary to have a reservoir pressure above the saturation pressure of oil with gas. Effective methods are recommended to reduce the formation of asphaltene deposits in the oil reservoir ...
- Created on 27 October 2023
- 8. Mining and geological models of virtual complex ore blocks of the bench
- (Content №4 2023)
- ... and technical substantiation of mining and geological, mining and technical indicators of complex structural blocks in terms of ore saturation and complexity of the morphological structure of blocks of ...
- Created on 28 August 2023
- 9. Pressure distribution in the oil reservoir in a two-dimensional plane
- (Content №1 2023)
- ... D. (2020). Numerical calculation of the pressure drop and saturation of two-phase flow through porous medium. Conference: SPE Annual Caspian Technical. https://doi.org/10.2118/202570-MS. 10. Razavinezhad, ...
- Created on 25 February 2023
- 10. Seismic geotraverse "Granit" (Ukrainian part). Reanimation
- (Content №4 2022)
- ... by a high level of saturation by short, unevenly distributed reflective elements occupying positions from sub-horizontal to steeply inclined ones in space from. The reflective elements carry information ...
- Created on 29 August 2022
- 11. Tectonic peculiarities of the Zhailma structure formation
- (Content №3 2022)
- ... identification of industrial deposits. An exception was the Zhailma trough, which is a unique Famennian-Carboniferous sedimentary structure in terms of ore saturation, containing significant reserves of ...
- Created on 29 June 2022
- 12. Energy-efficient predictive control for field-orientation induction machine drives
- (Content №6 2020)
- ... 11. Diachenko, G. (2020). Rotor flux controller for induction machines considering main inductance saturation. Problems of the regional energetics, 3(47), 10-19. https://doi.org/10.5281/zenodo.4018933. ...
- Created on 22 December 2020
- 13. Impact of water saturation effect on sedimentary rocks strength properties
- (Contens №4 2020)
- ... Abstract: Purpose. To identify some regularities of reduction in strength of loamy soils and weak sedimentary rocks that are typical for Western Donbas by water saturation condition for assessment ...
- Created on 30 August 2020
- 14. Influence of mechanical and thermal treatments on microstructural transformations in cast irons and properties of synthesized diamond crystals
- (Contens №4 2020)
- ... Defect redistribution in the crystal structure of the metal matrix and graphite inclusions plays a certain role at the mesoscale. It has been found that saturation with microstructural defects brings higher ...
- Created on 30 August 2020
- 15. The analytic-field method for calculating the squirrel-cage induction motor parameters
- (Contens №3 2020)
- ... of which differ significantly from the experimental ones. The aim of the article is to develop methods (based on field calculations) which take into account eccentricity, saturation, and higher harmonics ...
- Created on 02 July 2020
- 16. Evaluation of blast wave parameters within the near-explosion zone in the process of rock breaking with borehole charges
- (Contens №2 2020)
- ... Originality. Methodology to evaluate blast-wave parameters within the zone near the borehole or blasthole charge explosion is proposed. Physical mechanism for rock breaking to ultradisperse particles is proposed. It has been specified that thermoelastic stresses may be one of the possible causes, if not the main one, of the rock breaking within the near-explosion zone. A mechanism stipulated by the transition of microstructure of the rock crystalline components to the instable state is considered as the alternative (or additional) factor. The cause is in the oversaturation of the rock microstructure with the linear and point defects. Exceeded value of critical concentration of those defects results in the excessive reserves of internal energy with the following spontaneous breaking of chemical bonds. Impact adiabats of coking coals of three grades as well as isentrope and impact adiabat of the detonation products of emulsion explosive ЕРА Р-3 are constructed. In terms of the “pressure – mass velocity of particles” coordinates, curves of adiabats of the bituminous coals differ by not more than 4 %. ...
- Created on 10 May 2020
- 17. The influence of the moisture on the physical and mechanical properties of the sandstone (Separate Unit “Kapitalna” coal mine”, Donbas)
- (Contens №2 2020)
- ... Practical value. Obtained results can be applied in mathematical or numerical modeling of stress-strain state of the rock given consideration to the importance of the study of the influence of moisture on physical and mechanical markers and properties of rocks. It is possible to control stress-strain state around the roadways using the methods and the means of dewatering or hydro saturation as to coal seams and rocks. ...
- Created on 10 May 2020
- 18. A complex source of electrical energy for three-phase current based on a stand-alone voltage inverter
- (Content №1 2020)
- ... electric vehicles at the account of magnetic saturation and iron losses. Przegląd Elektrotechniczny (Electrical Review), (1), 199-202. https://doi.org/10.15199/48.2015.01.45. 9. Shapoval, I. A., ...
- Created on 10 March 2020
- 19. Review of methods for energy-efficiency improvement in induction machines
- (Content №1 2020)
- ... induction motor drives in electric vehicles considering core losses, main flux saturation and rotor deep bar effect. 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), ...
- Created on 10 March 2020
- 20. Study of physical and chemical properties of edaphotopes of the waste dumps at coal mines in the Novovolynsk mining area
- (Environmental Safety, Labour Protection)
- ... bases – according to Kappen Method; degree of saturation with bases – by the calculation method; exchangeable calcium and magnesium – by the method of complexometry; easily hydrolyzable nitrogen – according ...
- Created on 26 October 2019