Перегляд Mining of Mineral Deposits по назві
Зараз показуються 29-48 з 354
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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 ... -
Certain aspects concerning the development of a functioning scheme of the auto-mated system to control energy flows of underground iron-ore enterprises
(National Mining University, 2020-09-30)Purpose is to develop a functioning scheme of ACS for energy flows in terms of invariability of electric power consumption as well as inversion of energy flows of mining enterprises in the current time of day to decrease ... -
Choice and substantiation of stable crown shapes in deep-level iron ore mining
(National Mining University, 2018-12-30)Purpose. The aim of the paper is to select and substantiate stable shapes of crown pillars through determining regularities of rock pressure impacts on their stability depending on the crown shapes, mining depths and iron ... -
Choice of development method for technogenic mineral deposits by technological criteria
(National Mining University, 2016-12-30)Purpose. The purpose of the paper is to search for and choose optimal technologies of developing technogenic deposits. Methods. To achieve the aim, the analysis of selecting the deposit development technologies is used ... -
Choosing a camera for mine surveying of mining enterprise facilities using unmanned aerial vehicles
(National Mining University, 2020-12-30)Purpose. Choosing an effective method for performing the mine surveying of the objects at mining enterprise based on the implementation of practical and analytical work. Particular attention is focused on the use of modern ... -
Choosing the flow part geometric shape of the dredge pumps for viscous fluids
(Dnipro University of Technology, 2021-12-30)Purpose. Search for the possibility of increasing the efficiency of dredge pumps for viscous fluids by determining the rational values of the blade-outlet inclination angles in the pump impellers. Methods. During the ... -
Coal industry in the context of Ukraine economic security
(National Mining University, 2017-03-30)Purpose. To rate the main factors and indicators of the national economic security, in particular the degree of the country’s provision with primary natural resources which determine the global energy consumption ... -
Coalbed methane: places of origin, perspectives of extraction, alternative methods of transportation with the use of gas hydrate and nanotechnologies
(National Mining University, 2017-09-30)Purpose. To investigate the main basic physical and chemical properties of coalbed methane (CBM), conditions of its formation and places of occurrence. Special attention is paid to CBM utilization using alternative methods ... -
Computational model for evaluating the state of geomechanical systems during computing experiments
(National Mining University, 2017-03-30)Purpose. To create a model allowing integration of the diverse features identified for the rock massif behavior by differentiation of various theories and real phenomena into a single information-analytical flow. Methods. ... -
Concept of the journal “Mining of Mineral Deposits” Of the National Mining University”
(National Mining University, 2016-03-30)This article describes the present concept of the journal “Mining of Mineral Deposits”. The introduction features information about the Underground Mining Department where the journal was created. It also focuses on a short ... -
Controlling stress state of a hoisting shaft frame in the context of specific freezing process
(National Mining University, 2018-12-30)Purpose is to obtain regularities of a stress state of such multilayer system as neighbourhood rock mass – frozen soil – hoisting shaft frame in the process of numerical analysis to control a frame state with the selection ... -
Cradle-to-gate life cycle assessment of the production of separated mix of rare earth oxides based on Australian production route
(National Mining University, 2020-06-30)Purpose. Life cycle assessment (LCA) to investigate environmental impact resulting from the production of separated mixture of rare earth oxides (REO) mined in Australia. Methods. Analytical study of the literature reviews ... -
Cutting-edge industrial technology of mining tool manufacturing
(National Mining University, 2016-12-30)Purpose. To conduct a comparative economic analysis of cermet alloys regeneration technology, to identify the most “environmentally friendly” and cost-effective processing of solid alloys waste. Methods. As a research ...