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Design improvement of the holding bridge structure while in combined backfilling of the mined-out space of chambers
(Chernaya metallurgiya. Byulleten nauchno-tehnicheskoj i ekonomicheskoj informacii, 2018)Main scientific and practical results of the design improvement of the holding bridge structure (isolating elements) while in combined backfilling of the mined-out space of chambers, that provides safety betterment while ... -
Design of basic technological measures for the efficient development of oil deposits by thermal methods
(НТУ "Дніпровська політехніка", 2021-07)The object of the study is drilling a well in terms of the Skorokhodovsky gas condensate field with the development of measures to improve the quality of drilling fluids. -
Design of bottom hole assemblies with two rock cutting tools for drilling wells of large diameter
(National Mining University, 2020-09-30)Purpose. A methodology development for calculating the bottom hole assemblies (BHA) with two rock cutting tools for drilling the wells of large-diameter with an ability to manage the trajectory. Methods. A mathematical ... -
Designing cutting tools of mining machines for coal auger mining
(National Mining University, 2016-09-30)Purpose. The need for new technologies and techniques for the efficient development of thin coal seams. Methods. Mathematical and experimental modeling of the contact interaction of multipoint cutter with the rock. ... -
"DESK" METHOD OF COLLECTING MARKETING INFORMATION
(2014-12-04) -
Destabilization of the hard coal microstructure by a weak electric field
(2018)This study aims to analyse physical and chemical changes in hard coal samples under the influence of low-intensity electric fields in comparison to the fragments of ejected coal, as well as the coal ... -
Destruction of rocks by non-explosive destroying mixtures in underground mining
(Видавництво НТУ ДП, 2020)Purpose. Study of hydration kinetics of non-explosive destructive mixtures and dynamics of pressure increase of their expansion. Methodology. The first group of experiments was performed on an autodyne NMR spectrometer. ... -
Destruction of rocks by the non-explosive depleting compounds during mining
(National Mining University, 2016-03-30)Purpose. Justification of the possibility of non-explosive coherent rocks destruction while carrying out stratal underground mine workings on the basis of the set of dependencies describing changes in physical and mechanical ... -
DETERMINANTS OF ENERGY CONSUMPTION & FUEL BASE SAFETY
(2018)On the base of studying the current situation in the world mining and fuel consumption author make the prognosis of the country’s economic development and involving new conception of mine operation. -
Determinants of environmental degradation: reflections on the impact of identified economic variables on the environment
(National Mining University, 2019-12-30)Purpose. The main objective of this study is to investigate the determinants of environmental degradation within the broader framework of the environmental Kuznets Curve analysis. To better understand the economic impact ... -
Determinants of the influence of innovation on sustainable state development: aspects of public administration
(2020)This paper to identify the importance of the impact of innovation on the sustainable development of states and the classification of sustainable development innovations. Design/Methodology/Approach: classification, grouping ... -
Determination of basic calculation and experimental parameters of device for bore hole cleaning
(National Mining University, 2016-09-30)Purpose. To substantiate the design and operating technological parameters of the device for the interval bore hole cleaning departing from the set dependences of active jets formation in the flow through the blade ... -
Determination of granulometric composition of technogenic raw materials for producing composite fuel
(Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2022-08)Ukraine’s energy sector needs commercial coal from 19 to 21 million tons annually. At the same time, in 2020, coal production amounted to 28.82 million tons. This is less than in 2019 by 2,406.3 thousand tons or 7.7 %. The ... -
DETERMINATION OF LEACHING PARAMETER VALUES BY UNDERGROUND MINING METHODS FROM POOR AND EXTREMELY POOR ORES USING SIMILARITY THEOREM
(2018)Determination of technological parameters of leaching processes of poor and extremely poor uranium ores by similarity theorems. -
Determination of required measurement accuracy of parameters of technological process on Volnogorsk mining and smelting complex
(2013)На основании определения дисперсий технологических показателей в обогатительной технологии с помощью преобразования спектров дисперсий исходного потока полезного ископаемого определены требования к точности измерительного ... -
Determination of the influence of the degree of fracturing of the rock mass on the index of reduction of its strength
(2023)Purpose. The purpose of research of the presented scientific publication is to establish the regularity of changes in the generalized coefficient of strength reduction of disturbed rock massif depending on the degree of ... -
Determination of the injury probability among coal mine workers
(Dnipro University of Technology, 2021-06-30)Purpose. Establishing regularities of change in the injury probability and development of a methodology for determining the injury probability of coal mine workers to improve the occupational health and safety (OSH) ... -
Determination of the rate of sale of bank assets by incomplete information
(2019)Cyberattack is a situation where the number of Internet access (IS) requests that serve customers' requests via the Internet is increasing dramatically. In this case, the IP server starts to slow down, trying to satisfy ...