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Зараз показуються 1960-1979 з 22027
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Openwork scheduling for steep-grade iron-ore deposits with the help of near-vertical layers
(Dnipro University of Technology, 2021-03-31)Purpose is to develop efficient scheduling to excavate steep-grade iron-ore deposits using near-vertical layers relying upon production practices by an open pit of Poltava Mining-and-Processing Integrated Works (MPIW). Methods. ... -
Operation technique to mine thin seams with worked-out area stowing
(Видавництво НТУ "ДП", 2018)The monograph concerns substantiation of basic parameters and application area of thin coal seam mining with the worked-out area stowing by means of undercut rocks. As a result of the studies, ... -
Operation technique to mine thin seams with worked-out area stowing
(Видавництво НГУ, 2018)The monograph concerns substantiation of basic parameters and application area of thin coal seam mining with the worked-out area stowing by means of undercut rocks. As a result of the studies, ... -
Operational lifetime increase of the pumping equipment when pumping-out contaminated groundwater
(Dnipro University of Technology, 2021-03-31)Purpose. Solving the problem of increasing the pumping equipment operational lifetime when pumping-out contaminated groundwater in the iron-ore industry by extracting the hard, abrasive part, using magnetic filters based ... -
Opportunities and threats related to labour market globalization
(Економічний вісник Національного гірничого університету, 2009-06-01)The article considers different aspects of globalization and its consequences for national labour markets. The main forces of globalization process are analyzed. The main factors of the process are explored. The author ... -
OPTIMAL CHOICE OF ENTREPRENEURIAL MEASURES
(2021)Sooner or later, every company begins to realize that the list of goods and / or services it provides is not enough to maintain a sustainable development regime. In some cases, such measures are planned due to the ... -
Optimalspeed controller with predetermined difficulty
(НГУ, 2013)Today the engineering industry share of Ukraine is 12%, although in the early 90's it stood at 31% and was the basic industry of the country [1]. Dnipropetrovsk region engineering complex consists of 120 plants, which ... -
Optimization of blasting works during the destruction of masses with complex structure
(National Mining University, 2017-09-30)Purpose. To study the quality of crushing rocks with different strength properties, depending on parameters of the charges location and the blasting time. Methods. Based on the destruction of laboratory samples, histograms ... -
Optimization of blending operation for Aswan phosphate mines using linear programming
(National Mining University, 2018-12-30)Purpose. The economic value of phosphate is reduced when randomly blending raw phosphate produced from different mines. Therefore, the blending process of different raw phosphate ores to produce economic percentage of P2O5 ... -
Optimization of insurance contributions in risk insurance
(2017)Kyivmetrobud Corporation, Kryvyi Rih, is engaged in the construction of new mines and the expansion of the road network in the old ones. All these works are carried out at considerable depths underground and are accompanied ... -
OPTIMIZATION OF INSURANCE CONTRIBUTIONS IN RISK INSURANCE
(Le Mans University Faculty of Economics and Management, 2017-11-17) -
OPTIMIZATION OF INVESTMENT FOR COAL MINES BASED ON NEURAL NETWORK MODEL
(2018)The main objective of the paper is to develop a system of economic and mathematical models for managing the investment activity of the coal mining enterprise, including improving the principles and methods for ... -
Optimization of molybdenite flotation using response surface method
(National Mining University, 2018-03-30)Purpose. The paper is aimed to study the molybdenite flotation from a low-grade uranium ore containing 0.2% of Mo. Methods. Three control parameters including frother (MIBC) dosage, collector (gasoline) dosage and pH, ... -
Optimization of parameters of technological schemes of coal mines
(Нац. техн. ун-т «Дніпровська політехніка», 2019)Purpose. Develop a tool for assessing the state of technological schemes of coal mines, based on the study of the real state of the technological scheme, taking into account the hierarchical links between the elements of ... -
Optimization of position of the cyclical-and-continuous method complexes when cleaning-up the deep iron ore quarries
(National Mining University, 2019-09-30)Purpose. An algorithm development for calculating the optimum depth for cyclical-and-continuous method schemes introduction when cleaning-up the deep iron ore quarries. Methods. When developing an algorithm for calculating ... -
Optimization of product processing modes in modeling and programming of machining on machine tools with program control
(2023)Numerical research results have been obtained for a scientifically based approach to solving the technical problem of high-performance turning of cast iron parts on multi-axis machining centers, which contains a set of ...