- 1. Improvement of the methodology for calculating the expected drilling speed with PDC chisels
- (Content №1 2024)
- ... compatible use of jet and plunger pump with chrome parts in oil well. Energies, 15(1), 83. https://doi.org/10.3390/en15010083. 6. Femyak, Ya. M., Riznychuk, A. I., Fedoriv, V. V., Charkovskyi, V. M., ...
- Created on 29 February 2024
- 2. The choice of optimal methods for the development of water wells in the conditions of the Tonirekshin field (Kazakhstan)
- (Content №1 2024)
- ... Reduction of Energy Consumption for Water Wells Rehabilitation. Technology Optimization. Water, 6(12), 444. MDPI AG. https://doi.org/10.3390/fluids6120444. 8. Femyak, Y. M., Chudyk, I. I., Sudakov, A. K., ...
- Created on 29 February 2024
- 3. Determining technological properties of drilling muds
- (Content №2 2023)
- ... of Ukraine, 3, 22-27. ISSN 2518-1122. 17. Orychak, M., Femiak, Y., & Riznychuk, A. (2020). Influence of different reagents on the adhesive properties of grout solutions. Oil&Gas Industry of Ukraine, ...
- Created on 28 April 2023
- 4. Research on the impact of cognitive biases of workers on the subjective assessment of occupational risk
- (Content №1 2023)
- ... concern was the intensity and monotony of work, in contrast to females who are concerned about the pace of work and uncomfortable posture. It is determined that employees perceive occupational risk more ...
- Created on 25 February 2023
- 5. Analysis of surface settlements induced by tunnel excavation with EPB-TBM
- (Content №1 2023)
- ... empirical, analytical, and numerical (FEM) methods. Secondly, a set of numerical analyses was carried out to inspect the evolution of surface settlement as the TBM progresses. Finally, a parametric study ...
- Created on 25 February 2023
- 6. Modeling of drilling water supply wells with airlift reverse flush agent circulation
- (Content №1 2023)
- ... 9. Femyak, Ya. M., Femiak, V. Ya., Kovbsiuk, I. M., Martsynkiv, O. B., & Vytvytskyy, I. I. (2019). Evaluation of the influence of geological-technical factors on the durability of casing columns ...
- Created on 25 February 2023
- 7. The influence of fissured material on tunnel stability (a numerical study)
- (Content №6 2022)
- ... and Geological Engineering, 32, 43-58. 13. Vermeer, P.A., Bonnier, P.G., & Mller, S.C. (2002). On a smart use of 3D-FEM in tunnelling. In International symposium; 8th, Numerical models in geomechanics; ...
- Created on 25 December 2022
- 8. Mathematical modeling the quarry wall stability under conditions of heavily jointed rocks
- (Content №6 2022)
- ... 1. Durn, M., Godoy, E., RomnCatafau, E., & Toledo, P.A. (2022). Open-pit slope design using a DTN-FEM: Parameter space exploration. International Journal of Rock Mechanics and Mining Sciences, 149, ...
- Created on 25 December 2022
- 9. Convergence trends in the “economy – education – digitalization – national security” chain
- (Content №6 2021)
- ... Sumy State University, Sumy, Ukraine, e-mail: tavasilyeva@fem.sumdu.edu.ua повний текст / full article Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (6): 177 - 183 https://doi.org/10.33271/nvngu/2021-6/177 ...
- Created on 29 December 2021
- 10. Sand-sodium-silicate mixtures structured in steam-microwave environment effective values of thermo-physical properties
- (Content №6 2021)
- ... Science: Materials International, 26(4), 391-397. https://doi.org/10.1016/j.pnsc.2016.08.002. 6. Brionne, G., Loucif, A., Zhang, C.P., Lapierre-Boire, L.P., & Jahazi, M. (2018). 3D FEM simulation of ...
- Created on 29 December 2021
- 11. Comparative analysis of public management models
- (Content №4 2021)
- ... public administration, traditional public administration, new public management, new public governance, paradigm References. 1. Aderibigbe, A.M., & Oluwafemi, J. (2014). Towards A Theoretical Definition ...
- Created on 23 August 2021
- 12. New methods for preventing crumbling and collapse of the borehole walls
- (Content №4 2021)
- Authors: I.I.Chudyk, orcid.org/0000-0002-7402-6962, Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Ya.M.Femiak, orcid.org/0000-0003-4445-6731, ...
- Created on 23 August 2021
- 13. An integrated method for evaluating the quality of education and university performance
- (Content №3 2021)
- ... Sumy, Ukraine, e-mail: tavasilyeva@fem.sumdu.edu.ua S.V.Lyeonov, orcid.org/0000-0001-5639-3008, Sumy State University, Sumy, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. повний текст / full article Naukovyi ...
- Created on 23 June 2021
- 14. The parameters of burden flow from the bins of bell-less top charging system of blast furnaces
- (Contens №3 2020)
- ... Powder Technology, 335. https://doi.org/10.1016/j.powtec.2018.03.041. 10. Qi Luo, Qijun Zheng, & Aibing Yu (2017). From Micro to Macro: A Comparative Study of DEM and FEM in Modeling Hopper Flow. ...
- Created on 02 July 2020
- 15. Back-analysis study on slope instability in an open pit mine (Algeria)
- (Contens №2 2020)
- ... Findings. This paper considers the application of three methods: limit equilibrium method (LEM), finite element method (FEM) and finite difference method (FDM) to perform back analysis and find out the layer of slope failure in an open pit mine. ...
- Created on 10 May 2020
- 16. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention
- (Content №1 2020)
- ... 10. Levold, E., Restelli, A., Marchionni, L., Vitali, L., Molinari, C., & Ozkan, I. F. (2015). Strength and Deformation Capacity of Corroded Pipe: Laboratory Tests and FEM Analyses. The International ...
- Created on 10 March 2020
- 17. Modeling of the heat transfer process taking into account bursting expansion of fire-retardant coating
- (Content №1 2020)
- ... FEM in underground tunnels. Building and Environment, 143(1), 717-726. 10. Özişik, M. N., Orlande, H. R. B., Colaço, M. J., & Cotta, R. M. (2017). Finite Difference Methods in Heat Transfer ...
- Created on 10 March 2020
- 18. Leveling of pressure flow of radial ventilator in mine ventilation system
- (Contens №6 2019)
- ... Lviv, Ukraine. https://doi.org/10.1007/978-3-030-27011-7_15. 8. Umamaheswararao, L., & Ashif, M. (2016). Fluid flow analysis of centrifugal fan by using fem. International Journal of Mechanical ...
- Created on 23 December 2019
- 19. Stability analysis of the pillars of the underground mine Chaabet El-Hamra, Algeria by analytical and numerical methods
- (Mining)
- ... (Chaabet El-Hamra) by two different approaches, the tributary area (TAM) for analytical method and numerical method (Finite Element Method FEM) through PLAXIS 3D software. Methodology. In this work, ...
- Created on 24 April 2019
- 20. Analysis of calculation models while solving geomechanical problems in elastic approach
- (Mining)
- ... models for problems in elastic approach. Methodology. Rock mechanics methods; methods of analysis of the results of theoretical calculations and numerical experiments using FEM. Findings. Algorithm ...
- Created on 08 March 2019