Перегляд Періодичні видання НТУ "Дніпровська політехніка" по назві
Зараз показуються 381-400 з 3467
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Simulation of sample testing under compression with the help of finite-element model of rocks being broken
(National Mining University, 2018-09-30)Purpose of the paper is to develop mathematical model describing nature of argillous and salt samples under compression and to make available microdefects using finite-element method. Methods. To simulate behaviour of ... -
Simulation of the support-enclosing rock mass interaction for deep mining
(National Mining University, 2018-03-30)Purpose. To develop analytical model for a support-enclosing rock interaction to determine parameters for operational stability of deep mine workings while decreasing metal consumption and increasing efficient use of ... -
Software application in mining engineering
(National Mining University, 2018-03-30)Purpose. The main purpose is solving transportation problems using some methods of transportation modeling by linear programming. Linear programming has already demonstrated its value as an aid to making decisions in mining, ... -
Solution of the problem to optimize two-stage allocation of the material flows
(National Mining University, 2020-03-30)Purpose is to elaborate innovative and computationally efficient algorithm to solve a problem of two-stage allocation of the resource occupying continuously the specified area as well as to demonstrate the behaviour of the ... -
Solving the tasks of subsurface resources management in GIS RAPID environment
(National Mining University, 2019-09-30)Purpose. Solving the tasks of subsurface resources management based on the created GIS RAPID geoinformation technology. Methods. Close spatial relationships of lineament network characteristics and earthquake epicenters ... -
Spectral characteristic of oscillatory water flow in capillaries
(2013)У статті наведено результати спектрального аналізу експериментальних даних коливального характеру течії води в капілярі діаметром 30 мкм. Показано залежність амплітудно-частотної характеристики власних коливань швидкості ... -
Stability assessment of the slopes and side-hills with account of the excess pressure in the pore liquid
(National Mining University, 2020-03-30)Purpose. The strength criteria substantiation of water-saturated soils and mine rocks, which make it possible to obtain the analytical solutions necessary for determining the stability of water-flooded soil slopes and ... -
Stability of the coal seam roof during the sudden collapse of lateral rocks
(National Mining University, 2017-09-30)Purpose. To study the effect of dangerous manifestations of rock pressure (in the form of sudden lateral rock collapse) on the state of the coal seam roof developed in difficult mining and geological conditions by various ... -
Stability of the overworked slightly metamorphosed massif around mine working
(National Mining University, 2020-06-30)Purpose. The study of mechanisms of the overworked slightly metamorphosed massif stability around mine working using the example of laminal rocks in the Western Donbas (Ukraine). Methods. The analysis of the overworking ... -
State analysis of overworked and underworked parting between contiguous seams and during their simultaneous top-down mining
(National Mining University, 2016-06-30)Purpose. Investigating conditions of conducting and maintaining excavation works during mining of seam . Evaluating probability of parting rocks stability loss in terms of top-down mining of two contiguous seams in a ... -
Statutory and regulatory requirements in the process of mineral mining in Ukraine. Review and analysis
(National Mining University, 2019-06-30)Purpose. Compliance of statutory and regulatory requirements as for mineral mining, made while subsurface using, mines inspectorating, bringing to responsibility, and creating prerequisites for providing legal guarantees ... -
Strategic aims of local development in lower silesian communes
(2009-09-30)Підкреслена зростаюча роль місцевого самоврядування. Проаналізовані можливості, перспективи, загрози та проблеми цього процесу. В статті представлені результати дослідження щодо стратегічних цілей регіонального розвитку в ... -
Strength and strain quantities under brittle compression process of hard rocks
(National Mining University, 2018-03-30)Purpose. To examine the relationships between strength properties and strain quantities associated with the brittle compression process of hard brittle rocks. Methods. The data used in this paper were obtained from ... -
Structural, tectonic and fluid-dynamic aspects of deep degassing of the black sea megatrench
(National Mining University, 2017-03-30)Purpose. The problematical and controversial issues related to active gassing, deep structure, formation and evolution of the Black Sea are discussed. Methods. Geological and geophysical data (sonar, seismic and seismological ... -
Studies of new nonadhesive anchoring
(National Mining University, 2018-06-30)Purpose is to develop anchoring with nonadhesive high-strength roof bolting in terms of large pre-destructive deformations and its testing under laboratory conditions. Methods. Laboratory studies of hydration hardening ... -
Study and evaluation of the stability of underground mining method used in shallow-dip vein deposits hosted in poor quality rock
(Dnipro University of Technology, 2021-09-30)Purpose. This article proposes to analyze and determine the mining design for shallow-dip deposits hosted in poor quality rock. Methods. We used the UBC tool to find the optimal exploitation method, the Rock mass rating ... -
Study of change in the leaching solution activity after treatment with a cavitator
(National Mining University, 2019-12-30)Purpose. Increasing the valuable component content in a pregnant solution due to the activation of leaching solution with cavitation treatment in case of the borehole in-situ leaching (ISL). Methods. To obtain the cavitation ... -
Study of massif stress-strain state while mining the series of flat strata
(National Mining University, 2017-03-30)Purpose. To determine the effect of rock overworking and underworking on massif stress-strain state while extracting the series of flat coal seams. Methods. Mining, geological and technical conditions; current approaches ... -
Study of numerical simulation method modelling gas injection into fractured reservoirs
(National Mining University, 2019-06-30)Purpose. Fractures are the main flow channels in fractured reservoirs. The rapid flow characteristics of gas are outstanding in fractures. It is a major technical problem in the current oilfield development to calculate ... -
Study of protective properties of half-masks respirators used by miners
(National Mining University, 2016-12-30)Purpose. To define coefficient of protection of filtering respirators with elastomeric half-masks PR-7 in conditions of coal mines. Methods. Antidust respirators applied at mining enterprises of Ukraine were tested for ...