- 1. Drilling wells taking into account the dynamic properties of rocks
- (Content №2 2024)
- ... analysis of the amplitudes and power spectral density of mud pressure oscillations of the mud and vibration accelerations in the drill bit cross section of drill string. Findings. The results are presented ...
- Created on 01 May 2024
- 2. Design of double-shoulder threaded joints of drilling string elements
- (Content №3 2023)
- ... shape on loading flanks to generate more torque and enhanced elliptical thread root to reduce stress on connector cross section. SPE/IADC Drilling Conference, 14–16 March, the Hague, the Netherlands. Retrieved ...
- Created on 27 June 2023
- 3. Improving reliability of drill pipe by strengthening of thread connections of its elements
- (Geotechnical and Mining Mechanical Engineering, Machine Building)
- ... 3(15), 35-38. 9. Kolomiets, L., Orobey, V., & Lymarenko, A. (2016). Method of boundary element in problems of stability of plane bending beams of rectangular cross section. Structures. Metallurgical ...
- Created on 19 August 2019
- 4. Developing technological schemes of driving workings with controlled resistance of contours
- (Mining)
- ... coal-bearing layer, the mechanical characteristics of the enclosing array in the preliminary and limit state of typical cross section of the development, the construction and technological characteristics ...
- Created on 13 June 2019
- 5. Efficiency of preparation of mountain mass at careers of building materials
- (Geotechnical and mining mechanical engineering, machine building)
- ... on the changed parameters of the blast design in the holls drilled in the massif with a pronounced local fracturing, combined charges of variable cross section were formed, which made it possible to improve ...
- Created on 27 August 2018
- 6. Experimental estimation of load-carrying capacity of circular, square and rectangular CFTS columns
- (Geotechnical and mining mechanical engineering, machine building)
- ... of cross sectional size and shape on compressive characteristics of concrete filled square steel tube short columns. Journal of Structural and Construction Engineering (Transactions of AIJ), 78(685), pp. ...
- Created on 11 January 2018
- 7. Decomposition of electromotive force signal of stator winding in induction motor at diagnostics of the rotor broken bars
- (Electrical complexes and systems)
- ... field in the cross section of an induction motor with the use of a mathematical model based on the finite element method enabling assessment of broken rotor bars influence on generation of electromotive ...
- Created on 02 October 2016
- 8. Simulation modelling of stress field in the vicinity of the stope of orebody
- (Geotechnical and mining mechanical engineering, machine building)
- ... values in the cross section of the central part of the chamber on axis borders on one side of the chamber of the hanging wall, and on the other, the footwall, i.e., in zone of high stress or stress redistribution. ...
- Created on 04 August 2016
- 9. Sectional shape of a flexible body sliding over a fixed block
- (Geotechnical and mining mechanical engineering, machine building)
- Authors: N.A. Lubenets, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “National Mining University”, Senior Lecturer of the Department of Transport Systems and Technology, ...
- Created on 04 February 2016
- 10. Hydrodynamics of non-isothermal turbulent airflows in ducts of annular section
- (Geotechnical and mining mechanical engineering, machine building)
- ... under a turbulent flow of the air stream in the annular flow channel of cross section when heating through inner wall under boundary conditions of the first kind. The explanation for this effect is given ...
- Created on 29 March 2015
- 11. Features of dispersed media movement technological processes at volume application of vibrational forces
- (Geotechnical and mining mechanical engineering, machine building)
- ... solidsin the chambers of rectangular cross section for screening in order to choose rational regime and structural parameters of the experimental samples of devices for restricted circulating screening. ...
- Created on 19 December 2012
- 12. Experimental-industrial verification of maintenance method using rigid constructions with countervailing cavities in the mine “Scheglovskaya-Glubokaya”
- (Mining)
- ... into account the distance to the stope. We have analyzed the rate of displacement of rocks enclosing the working, and constructed the cross sections of the workings in the reference grid at the distance ...
- Created on 19 December 2012
- 13. Certain problems concerning internal forces in beams
- (Mining)
- ... of the surface graphs to determine internal efforts in the cross sections of beams was presented as well. References 1. Снитко Н.К. Строительная механика: Учебник для вузов / Снитко Н.К. – ...
- Created on 22 November 2012
- 14. Estimation of methodical uncertainty of measuring of superficial rejections of a shaft
- (Geotechnical and mining mechanical engineering, machine building)
- Authors: Ye.S. Syrkov, State Higher Educational Institution “National Mining University”, Student, Dnipropetrovsk, Ukraine Annotation: Estimation of the methodological uncertainties ...
- Created on 21 November 2012
- 15. Estimation of fractured rock permeability around excavations from the viewpoint of rock mechanics
- (Mining)
- ... local changes of fractured rock permeability in the zone around underground excavations of circular cross section at different fracture inclination angles. Practical value. More exact values of ...
- Created on 15 November 2012