- 21. Research on occurrence features and ways to improve the quality of productive hydrocarbon horizons demarcation
- (Content №3 2024)
- ... filtration-capacitance characteristics of the reservoir rocks, to develop effective technological fastening schemes for the delimitation of closely located different-pressure and different-saturated horizons ...
- Created on 28 June 2024
- 22. Institutional stability of public administration: the economic and legal dimension
- (Content №2 2024)
- ... of obstacles to the free will of citizens; excessive political pressure on public authorities by representatives of business and criminal structures; increased political instability, uncertainty of the ...
- Created on 01 May 2024
- 23. Basics of calculation of a two-circuit air purification system for polydisperse dust
- (Content №2 2024)
- ... calculation of a closed two-circuit cleaning system was proposed by drawing up a pressure balance of individual circuits, and a dependence for the complex coefficient of hydraulic losses of the collection-return ...
- Created on 01 May 2024
- 24. Drilling wells taking into account the dynamic properties of rocks
- (Content №2 2024)
- ... interaction of the mud pressure in the drill string and the drill bit longitudinal vibrations in case of contact with the rock being destroyed while drilling using the cavitation hydraulic vibrator; comparative ...
- Created on 01 May 2024
- 25. Three-dimensional density model of the mantle beneath the Ukrainian shield
- (Content №2 2024)
- ... Kern, H., & Tubia, J. M. (1993). Pressure and temperature dependence of P- and S-wave velocities, seismic anisotropy and density of sheared rocks from the Sierra Alpujata massif (Ronda peridotites, ...
- Created on 01 May 2024
- 26. Assessment of the influence of the surface layer of coals on gas-dynamic phenomena in the coal seam
- (Content №2 2024)
- ... 2. Nikolin, V. I., Podkopaev, S. V., Khudoley, O. G., & Maleev, N. V. (2011). Geomechanical regularities of manifestations of rock pressure in deep mines. Donetsk. 3. Bulat, A. F., & Dyrda, ...
- Created on 01 May 2024
- 27. Method of controlling the volume of combustion products at different boiler loads
- (Content №1 2024)
- ... of Medium Pressure Boilers Using a Mixture of Natural and Blast Furnace Gases Taking into Account Air Intakes. NTU “KhPI” Bulletin: Power and Heat Engineering Processes and Equipment, (2), 32-39. https://doi.org/10.20998/2078-774X.2020.02.05. ...
- Created on 29 February 2024
- 28. An overview of hydrogen production via reforming from natural gas
- (Content №1 2024)
- ... 24. Anzelmo, B., Wilcox, J., & Liguori, S. (2017). Natural gas steam reforming reaction at low temperature and pressure conditions for hydrogen production via Pd/PSS membrane reactor. Journal of ...
- Created on 29 February 2024
- 29. Scientific bases and peculiarities of conversion of CHPP anthracite boilers to sub-bituminous coal combustion
- (Content №1 2024)
- ... Kalman (2017). Experimental pressure drop analysis for horizontal dilute phase particle-fluid flows. Powder Technology, 321, 355-368. https://doi.org/10.1016/j.powtec.2017.08.029. 18. Mysak, S. Y., Galyanchuk, ...
- Created on 29 February 2024
- 30. Analysis and prediction of surface settlements during the digging of underground mining works (Algeria)
- (Content №6 2023)
- ... Lal, B. (2019). Geotechnical Design Parameters for a Metro Tunnel from Pressuremeter Tests. In Sundaram, R., Shahu, J., Havanagi, V. (Eds.). Geotechnics for Transportation Infrastructure, 29. https://doi.org/10.1007/978-981-13-6713-7_5. ...
- Created on 23 December 2023
- 31. Liquefaction of industrial zone against earthquake loading using laboratory and field measurements
- (Content №5 2023)
- ... Fattah, M. Y., Al-Neami, M. A., & Jajjawi, N. H. (2014). Prediction of Liquefaction Potential and Pore Water Pressure beneath Machine Foundations. Central European Journal of Engineering, 4(3), 226-249. ...
- Created on 27 October 2023
- 32. Optimization mathematical model of a contact air cooler for a mine turbocompressor
- (Content №5 2023)
- ... For the the first time, a method has been developed for determining the rational parameters of contact air coolers when the initial temperature of water, air, and air pressure changes, which allows developing ...
- Created on 27 October 2023
- 33. Combustion and detonation of paste fuel of rocket engine
- (Content №5 2023)
- ... pressure bomb determined the burning rate at different pressures. The stability of deflagration combustion without transition to the detonation mode was confirmed. An explosion occurred during the fire ...
- Created on 27 October 2023
- 34. Evaluation of coal mines’ rock mass gas permeability in the equivalent stress zone
- (Content №5 2023)
- ... coincides with the bearing pressure maximum in front of the longwall face. This area corresponds to the rock mass with minimal porosity and minimal filtration, which allows considering it as an envelope ...
- Created on 27 October 2023
- 35. Reducing the formation of asphaltene deposits and increasing the flow rates of oil wells
- (Content №5 2023)
- ... of asphaltene deposits in the bottom-hole zone of wells, the turbulent nature of oil movement is necessary, which is achieved by increasing reservoir pressure when water or gas is injected into the oil ...
- Created on 27 October 2023
- 36. The role of the formation of the environmental management system in the improvement of international economic relations
- (Content №4 2023)
- ... Retrieved from https://www.bizimyol.info/az/news/51897.html. 6. Brammer, S., Hoejmose, S., & Marchant, K. (2012). Environmental Management in SMEs in the UK: Practices, Pressures and Perceived Benefits. ...
- Created on 28 August 2023
- 37. Improvement of the service life of mining and industrial equipment by using friction modifiers
- (Content №4 2023)
- ... of disc pairs were obtained for four specific loading periods and corresponding pressures of 529, 374, 274 and 187 MPa. These measurements were taken while the discs experienced a 10 % relative slippage ...
- Created on 28 August 2023
- 38. Hydrodynamics of vapor-liquid flows in curvilined channels of separation devices of power plants
- (Content №4 2023)
- ... two-phase medium, shutter separator, curvilinear movement of a drop, hydraulic mal distribution References. 1. Oliver, P. (2013). Prediction of Rotating Instabilities in Low Pressure Steam Turbines ...
- Created on 28 August 2023
- 39. Improving the technology of extracting coal concentrate from fly ash from thermal power plants
- (Content №4 2023)
- ... of the factors and the three-dimensional surface of the calculated response function were drawn up. Originality. The degree of influence of factors such as pulp pressure in the feed pipeline, collector ...
- Created on 28 August 2023
- 40. Mathematical model of air flow movement in a motorized filter respirator
- (Content №3 2023)
- ... in the form of a transfer function of the third order; it can be used to develop a pressure control system for the air in the under-mask space in accordance with the user’s work mode in order ensure comfortable ...
- Created on 27 June 2023