Перегляд Mining of Mineral Deposits по назві
Зараз показуються 153-172 з 354
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Laboratory studies of a high-strength roof bolting by means of self-extending mixtures
(National Mining University, 2019-06-30)Purpose is to analyze parameters of a new method to fasten roof bolts with the help of nonadhesive mixtures extending while hardening along with the development of high expansion pressures. Methods. The research, concerning ... -
Lifelong learning competence development of mining students and academic integrity: case study of language courses
(National Mining University, 2019-03-30)Purpose. State-of-the-art description of faculty members (teaching language courses) attitude towards distinguishing of life-long learning competences evaluation and on purpose formation for mining students. Methods. The ... -
Local reinforcing of footing supported in the destroyed rock massif
(National Mining University, 2017-03-30)Purpose. Justification of feasibility of non-explosive destruction of hard rock during in-seam workings based on the obtained dependences related to changes of physical and mechanical properties of non-explosive destructive ... -
Management of land reclamation quality for agricultural use in opencast mining
(Dnipro University of Technology, 2021-03-31)Purpose. Theoretical substantiation of principles and development of recommendations for the choice of technological variant to form the quality of lands of technogenic origin, which would ensure rational spending of funds ... -
Managing mining enterprises’ assets as the basis of their competitiveness
(National Mining University, 2016-12-30)Purpose. Clarification of the essence of the coal enterprise asset management system as the main instrument to ensure its competitiveness through the effective use and involvement in the turnover of all assets available. Methods. ... -
Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining
(Dnipro University of Technology, 2021-06-30)Purpose is to determine a function of the reduced expenditures connected with drilling-and-blasting operations, loading and hauling operations, and rock fragmentation depending upon the cost of machine-shift of the applied ... -
Mathematical modeling of hydraulic mining from placer deposits of minerals
(National Mining University, 2016-06-30)Purpose. To analyze the process of hydraulic borehole mining of minerals. To define the main problems of hydraulic borehole mining. To create a mathematical model that will describe the process of hydraulic borehole mining ... -
Mathematical modeling of unsteady water filtration into anchored mine opening
(National Mining University, 2017-06-30)Purpose. To develop a mathematical model of the interrelated processes of coal-rock mass deformation and water filtration in the disturbed area to study the change in the value of water inflow into the mine working de-pending ... -
Mathematical modelling of thermal stresses within the borehole walls in terms of plasma action
(Dnipro University of Technology, 2021-06-30)Purpose is the development of a mathematical model to study and describe thermal processes within the borehole wall in terms of plasma-based rock breaking. Methods. The following has been applied: theoretical analysis ... -
Mechanism conversion process and timeliness of N2-ECBM
(National Mining University, 2018-12-30)Purpose. Based on the technology by which methane drainage is strengthened under gas injection, to examine the process of gas injection and the mechanism of action. Methods. Physical simulation experiment method, using ... -
Mechanism of magnetic field effect on hydrocarbon systems
(National Mining University, 2016-09-30)Purpose. The aim is to analyze the problem of preventing the asphalt-resin-paraffin deposits (ARPD) in the oil industry equipment and to justify application of paraffin control methods; to review modern approaches to ... -
Methane Hydrates – Australian perspective
(National Mining University, 2016-12-30)Purpose. To analyze Australian methane hydrate resources, exploration, and production, its current state and future potential. Methods. Analysis of data published in different sources concerned with geological surveys and ... -
Method for calculation of drilling-and-blasting operations parameters for emulsion explosives
(National Mining University, 2019-09-30)Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well ... -
Method of simulating rock mass stability in laboratory conditions using equivalent materials
(National Mining University, 2016-09-30)Purpose. To determine the qualitative composition of the equivalent material of a laboratory model representing Kryvyi Rih iron-ore basin ground, as well as to develop a method to determine its quantitative composition for ... -
Methods for intensification of borehole uranium mining at the fields with low filtration characteristics of ores
(Dnipro University of Technology, 2021-09-30)Purpose. Improving the efficiency of borehole uranium mining and the selection of special decolmating solutions to improve the filtration characteristics of the seam due to effective destruction, as well as by preventing ... -
Microsoft paint imaging system – a photogrammetric approach to fragmentation measurement in rock and aggregate production
(National Mining University, 2020-09-30)Purpose. To evaluate the fragment sizes of blasted material using Microsoft paint imaging system. It focuses on digital imaging fragmentation analysis of rocks and aggregates using the Microsoft paint, putting into ... -
Mineral raw material disintegration mechanisms in ball mills and distribution of grinding energy between sequential stages
(National Mining University, 2020-06-30)Purpose. To study the mechanism of mineral raw material particles destruction, the rational distribution of grinding energy between successive grinding stages in ball mills, and the development of engineering methods for ... -
Mineral resources and national economic security: current features
(National Mining University, 2019-03-30)Purpose is to estimate current mineral and raw material complex and its effect on national economic security basing upon determination and analysis of the integrated index. Methods. Eleven countries of the world with the ... -
Mineralogical characterization and evaluation of chromite ore in Grevena and Kozani Vourinos massif, Western Macedonia, Greece
(Dnipro University of Technology, 2021-03-31)Purpose. Chromite samples from Aetoraches mine area in the southern part of the Vourinos complex in Western Macedonia, Greece were examined from mineralogical-geochemical perspective. Methods. Χ-ray Diffraction (XRD) ... -
Mining under the early metal in the context of Kartamysh ore occurrence of Ukrainian Donbas
(Dnipro University of Technology, 2021-09-30)Purpose is to identify process engineering of mining under the Late Bronze age (18th-13th centuries BCE) in the context of copper deposits in the Eastern Ukraine. Among other things, it concerns analysis of manufacturing ...