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Assessment of radioactivity of 226Ra, 232Th and 40K in soil and plants for estimation of transfer factors and effective dose around Mkuju River Project, Tanzania
(National Mining University, 2017-09-30)
Purpose. To establish pre-mining indicators to assess radiological impact as a result of release of radionuclides to environment during uranium mining at Mkuju River Project radioactivity of 226Ra, 232Th and 40K in soil, ...
Modeling the process of mineral rocks cutting with a tool made of polycrystallinе superhard materials
(National Mining University, 2017-09-30)
Purpose. To analyze the process of rocks cutting by a tool made of polycrystallinе superhard materials (PSM).
Methods. Mathematical modeling of rock destruction process.
Findings. A model of deformation and fracturing ...
The effect of increasing the water content on rocks characteristics from Şuior, Romania
(National Mining University, 2017-09-30)
Purpose. Generation of relative humidity fluctuations lead to a further decrease in the resistance of rocks, which involves the swift evacuation of groundwater from mining works. For andesitic rocks strongly hydrothermal ...
Physical and mathematical modelling of the conditions of coal and gas outbursts
(National Mining University, 2017-09-30)
Purpose. Experimental study and theoretical modeling of conditions initiating destructive processes and development of gas generation in coals.
Methods. Analysis, generalization and statistical processing of experimental ...
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 ...