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Experimental studies on the shear resistance of original coal-shale joint
(National Mining University, 2017-12-30)
Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint.
Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained ...
Developing information systems of operation schedules to stabilize the grade of a mineral
(National Mining University, 2017-12-30)
Purpose. To develop information technology making it possible to obtain ore flow with the required grade parameters in the context of open-pit mining owing to the implementation of methods and algorithms optimizing operation ...
Research іnto the mechanіsm of aggregate-formіng objects contact wіth oіl aggregatіon of fіnely-dіspersed coal
(National Mining University, 2017-12-30)
Purpose. To investigate separate phases inherent to the process of “reagent – coal grain” contact during oil aggregation of coal, in particular, to analyze the following phases of the contact process: “encounter of ...
Selection of gathering autotransport for the systems of cyclical-and-continious technology
(National Mining University, 2017-12-30)
Purpose. Usage of technological gathering auto transport of the rational unit capacity and maximum level of consumer properties.
Methods. Optimization of gathering auto transport equipment parameters, as well as rational ...
Nuclear-and-fuel power industry of Ukraine: production, science, education
(National Mining University, 2017-12-30)
Purpose. To define relevant problems and propose ways for development of production, scientific and educational spheres associated with nuclear-and-fuel power industry of Ukraine.
Methods. The current state of uranium and ...
Physical and chemical conditions for the formation of mercuric gold within Au-Hg deposits (thermodynamic modeling)
(National Mining University, 2017-12-30)
Purpose. To carry out computer thermodynamic modeling of gold and mercury behaviour in the context of their common occurrence and formation of mercuric gold in hydrothermal solutions Cl– – HCO3– – Na+ and Cl– – Na+ – Ca2+ ...
Problems of research and mining of gas deposits on the Moon
(National Mining University, 2017-12-30)
Purpose. The study of the main types of the most valuable lunar resources, such as water, hydrogen, oxygen and other gases in the lunar regolith, and the identification of the main methods and technical solutions for their ...
Damage to flexible pipes of coiled tubing equipment due to corrosion and fatigue: methods and approaches for evaluation
(National Mining University, 2017-12-30)
Purpose. To propose an engineering approach for evaluating surface corrosion fatigue of flexible pipes of coiled tubing equipment, on the basis of the generalized data about corrosion fatigue behaviour of structural steels ...
Formation of integrated energy efficiency indicator for mining industry companies
(National Mining University, 2017-12-30)
Purpose. Justification of the principles for assessing the competitive status of Ukrainian mining companies’ energy efficiency as a derivative of electricity consumption and qualitative estimation of the companies’ competitive ...
Experimental determination of angle values of the rocks full displacement when undermining them by breakage headings
(National Mining University, 2017-12-30)
Purpose. Experimental determination of angle changes of full displacement of rocks by removing the breakage face from the face entry in different mining and geological conditions.
Methods. On the basis of experimental ...