Перегляд Mining of Mineral Deposits по назві
Зараз показуються 17-36 з 354
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Analyzing a denitration process in the context of underground well uranium leaching
(Dnipro University of Technology, 2021-03-31)Purpose is to increase a sorbent denitration degree in the context of underground uranium leaching while optimizing reagent concentration as well as a degree of the solution activation on the basis of laboratory ... -
Analyzing changes in a leach solution oxygenation in the process of uranium ore borehole mining
(Dnipro University of Technology, 2021-09-30)Purpose is to increase uranium content in a PR solution while developing a technique varying oxidation-reduction potential of a leach solution with its oxygenation and identify changes in the oxygenation depending upon ... -
Analyzing kinetics of deformation of boundary rocks of mine workings
(National Mining University, 2018-12-30)Purpose is to analyze nature of rock deformation and to estimate experimentally state of mine workings being supported under the conditions of areas disturbed by coal mining. Methods. The studies involved field instrumental ... -
Analyzing mechanics of rock breaking under conditions of hydromechanical drilling
(Dnipro University of Technology, 2021-09-30)Purpose is to substantiate design factors and technological parameters of next-generation facilities of hydromechanical drilling basing upon the determined features of interaction between breaking pellets and rock ... -
Application features of the surface laser scanning technology when solving the main tasks of surveying support for reclamation
(National Mining University, 2019-09-30)Purpose. Study of the effectiveness of topographical survey methods when solving the main tasks of surveying support for the disturbed lands reclamation. Methods. Comparative analysis of the topographical survey results, ... -
Application of grout slurries with the Defecate addition for effective well cementing
(Dnipro University of Technology, 2021-03-31)Purpose. Research and substantiating the expediency of cement mix formulations of grout slurries with different Defecate additive content and their effective use when cementing the reservoirs prone to absorption of the ... -
Application of radio-wave geointoscopy method to study the nature of spreading the solutions in the process of uranium underground leaching
(Dnipro University of Technology, 2021-12-30)Purpose. Assessment of the effectiveness of using the method of radio-wave geointoscopy of the inter-well space for threedimensional mapping of the zone of the leaching solution actual propagation in the process of uranium ... -
Application of shock blasting mode in mine roadway construction
(National Mining University, 2016-06-30)Purpose. Working out measures providing safe application of a shock blasting mode while driving workings in outburst-prone coal seams. Methods. Conveying of shock blasting at the mine workings on the coal mines of Ukraine ... -
Application of the Radial Basis Function interpolation method in selected reservoirs of the Croatian part of the Pannonian Basin System
(National Mining University, 2020-09-30)Purpose. The use of interpolation methods of mapping Radial Basis Function (RBF) on reservoir data from one field in Croatian part of Pannonian Basin System (CPBS). Methods. The RBF method (with five single basic mathematical ... -
Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries
(National Mining University, 2020-03-30)Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar ... -
Applying European approach to predict coal self-heating in Ukrainian mines
(National Mining University, 2019-03-30)Purpose is the prediction of coal self-heating and determination of the factors effecting the dynamics of emission of tracer gases (TG) used for routine control of coal self-heating within the production unit involving ... -
Applying noncantilevered support of mechanized complexes for developing flat seams
(National Mining University, 2016-06-30)Purpose. Substantiation of applying additional load-bearing structure of powered support near the face onto the bench formed within the seam by the cutter-loader actuating element, which allows to increase efficiency of ... -
Assesing a risk of roof fall in the development mine workings in the process of longwall coal mining in terms of Ukrainian mines
(National Mining University, 2020-03-30)Purpose is the analysis of the available approaches used to determine risks of injures of miners and the development of a new method to assess risks of roof fall in the development mine workings, which maintain long stopes ... -
Assessment of coal quality on the site “Uspenivska No 2” in Western Donbas based on the statistical analysis of its chemical and technological properties
(National Mining University, 2016-12-30)Purpose. To conduct a comprehensive assessment of the coal seams’ quality on the site “Uspenivska No 2” in Lozivskyi coal-bearing area of the Western Donbas industrial district; establish their grade composition according ... -
Assessment of environmental and technical risks in the process of mining on the basis of numerical simulation of geofiltration
(National Mining Uniersity, 2016-03-30)Purpose. Substantiation of environmentally acceptable and technically safe operational mining schemes in the context of disturbed hydrogeological and geomechanical conditions by means of developing adapted filtrational ... -
Assessment of environmental impact of gemstone mining in Ijero-Ekiti, Nigeria
(National Mining University, 2018-03-30)Purpose. To examine the environmental impacts of gemstone mining activities on the people of Ijero-Ekiti, Ekiti State, Nigeria. Methods. Soil and water test were carried out on samples from the mine and its environment. ... -
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, ... -
Assessment of the factors influencing on the formation of energy-oriented modes of electric power consumption by water-drainage installations of the mines
(Dnipro University of Technology, 2021-12-30)Purpose. Performing the analysis to determine energy-efficient modes and assess the characteristics of the main indicators of electric power consumption by mine water-drainage installations based on the developed research ... -
Assurance of guaranteed atmosphere air quality for a point emission source
(National Mining University, 2019-06-30)Purpose. To solve the task of assessing the components of the guaranteed atmosphere air quality PMPj, PMP depending the maximum pollutant concentrations for a point source of emissions at the stage of designing in various ... -
Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria)
(National Mining University, 2019-12-30)Purpose Flotation tests have been used in order to achieve the purposes of this study which are: To obtain the highest recovery with a maximum grade of P2O5 from the tailing generated by the phosphate plant of Djebel Onk ...