Перегляд Періодичні видання НТУ "Дніпровська політехніка" по назві
Зараз показуються 409-428 з 3461
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Substantiating velocity of amber buoying to the surface of sludge-like rock mass
(National Mining University, 2020-12-30)Purpose is to substantiate the parameters and factors in terms of which amber can be mined efficiently from sand deposits using hydromechanical method. Methods. Laboratory studies and full-scale experiments of amber-bearing ... -
Substantiation and process design to manufacture polymer-concrete transfer cases for mining machines
(National Mining University, 2020-06-30)Purpose. To determine efficient polymer-concrete composition and to develop a process design to use the material to manufacture transfer cases for mining machines operating under very heavy conditions to improve their ... -
Substantiation of cable bolts parameters for supporting mine workings in conditions of laminated rocks
(National Mining University, 2016-03-30)Purpose. The development of approaches to the substantiation of the cable bolts installation parameters for the mine workings supporting in conditions of laminated rocks, taking into account the geometric parameters of the ... -
Substantiation of refractory lining influence on the electric furnace efficiency for the production of ferronickel
(Dnipro University of Technology, 2021-09-30)Purpose. The purpose of the research is to substantiate the possibility of replacing existing MgO bricks with the MgO-C bricks due to their resistance to the slag aggressiveness of the electric furnace and the Si content ... -
Substantiation of resource-saving technology when mining the deposits for the production of crushed-stone products
(Dnipro University of Technology, 2021-12-30)Purpose. Scientific substantiation of the expedient depth of mining the non-metallic deposits of rocky minerals on the basis of mathematical and statistical methods, which will ensure resource-saving and rational use of ... -
Substantiation of the intensified dump reclamation in the process of field development
(National Mining University, 2020-06-30)Purpose is to substantiate intensification of dozer dump reclamation in the process of open pit-mining. Methods. Analysis of methods intended to intensify reclamation activities in the context of open-pit mineral extraction ... -
Substantiation of the method for constructing the diagram of the horizontal belt conveyor tightness
(National Mining University, 2017-09-30)Purpose. The method for constructing the diagram of the conveyor belt tightness, which satisfies the fundamental conditions of the mechanical system equilibrium and takes into account the influence of its centrifugal forces ... -
Substantiation of the method of determination the open-cast mine final con-tours taking into account the transport parameters
(2019)Purpose. Development and justification of the methodology for setting the boundary contours of the quarry and the payback period of capital investments for the development of the deposit in an open way, taking into account ... -
Substantiation of the methodology for modeling and calculating the optimal operating modes of a tandem pumping installation when mining uranium
(National Mining University, 2020-12-30)Purpose. The purpose of the research is to develop a mathematical model of the jet pump (JP) working process and a calculation methodology for modeling, as well as to determine the optimal operating modes of a combined ... -
Substantiation of the parameters of the erosion jet underwater face
(2020)A physical model is developed for the contact of a turbulent flooded axisymmetric water erosion jet with an underwater face of incoherent soil. To develop a mathematical model, an assumption was made about the possibility ... -
Surface mines composite slope deformation mechanisms and stress distribution
(National Mining University, 2020-12-30)Methods. Description and interpretations of the mechanical and stress computational model for a waste dump loading in the formation of a composite slope on the basis of the theory of plasticity and elasticity. Numerical ... -
Survey of the world practice of implementing energy-efficient technologies in terms of mining enterprises
(National Mining University, 2019-12-30)Purpose is the analysis of world practice of applying the best available techniques to increase energy saving and energy efficiency of mining enterprises being the important factor of the economic development. Methods. ... -
Sustainable development of Ukrainian iron and steel industry enterprises in regards to the bulk manufacturing waste recycling efficiency improvement
(National Mining University, 2018-03-30)Purpose. Identify the tendency of sustainable development of Ukrainian iron and steel industry enterprises regarding the raising of the bulk manufacturing waste recycling efficiency. Methods. To achieve this purpose, a ... -
Technical and technological aspects of the coal mine closure based on the geomechanical component assessment
(Dnipro University of Technology, 2021-09-30)Purpose. Development of a comprehensive methodology for assessing the state of mine workings based on the analysis of their contour displacement patterns when solving the problem of minimizing the risks during the closure ... -
Technological characteristics of the device for bore hole cleaning
(National Mining University, 2016-06-30)Purpose. Rationale for structural and technological parameters of the device for processing the bore hole vuggy zone departing from the set dependences of active jets formation while streamlining the blade element. Methods. ... -
Technological complex for production, transportation and storage of gas from the offshore gas and gas hydrates fields
(National Mining University, 2016-09-30)Purpose. Substantiation and development of schematics acceptable for the existing technological methods of natural gas production and transportation from the offshore fields of gas or gas hydrates. Improvement of their ... -
Technological safety of sustainable development of coal enterprises
(National Mining University, 2017-06-30)Purpose. Substantiation of conceptual base of searching the ways of threats prevention to sustainable development of coal enterprises in the presence of multidirectional vectors of economic pressure of the external ... -
Technological, economic and ecological aspects of selective coal mining from ultra-thin seams in conditions of Ukraine
(National Mining University, 2016-03-30)Purpose. At present one of the topical problems associated with coal seams mining is the issue of induced wall-rock coal-cutting with stone, which results in coal getting clogged with refuse stone and turning into the rock ... -
Technology development of Kryvyi Rih iron ore open pits within zones stoping of underground mine working
(2015)На современном этапе отработка залежей железных руд в Кривбассе ведется в условиях как совместных открытых и подземных горных работ, так и открытой разработки месторождений в зонах, подработанных подземными выработками. ...