Перегляд по темі "efficiency"
Зараз показуються 1-10 з 31
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Analysis of miners’ biomechanical characteristics during underground coal mining
(National Mining University, 2016-12-30)Purpose. Analysis and establishing regularities of changes in miner’s biomechanical characteristics during underground coal mining in order to reduce the number of accidents and injuries in coal mines. Methods. The complex ... -
Enhancement of confined blasting of ore
(2019)Underground mining of ore deposits features worsening of geological and geotechnical conditions, exclusive standards of environmental protection and subsoil conservation as well as more stringent requirements of life safety ... -
Evaluation of some renewable energy technologies
(National Mining University, 2017-12-30)Purpose. The study aims to outline and compare various renewable energy alternatives in view of the global warming crisis and depletion of fossil fuels which cause emissions of carbon dioxide. Carbon dioxide is a major ... -
Improving the efficiency of pneumopercussion machines
(Видавництво НТУ ДП, 2020)Purpose. Using the special pneumopercussion machines it is improving the efficiency of the process of the thermodynamic processes in the working chambers. Methodology. The studies were carried on thermodynamic ... -
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 ... -
Models and methods to make decisions while mining production scheduling
(National Mining University, 2019-12-30)Purpose is to develop a new approach to the design of mining operations basing upon models and methods of decision making. Methods. The paper has applied a complex approach involving approaches of decision-making theory. ... -
Preliminary assessment of roadheaders efficiency based on empirical methods and index of equivalent rock strength
(National Mining University, 2019-09-30)Purpose. The choice of a proper roadheader is a critically important step in planning of a project or some of its stages. Nowadays various manufacturers produce numerous models of these vehicles, hence it is unreasonable ... -
Reforming and modernizing the public service of Ukraine under European standards management of personnel policy
(2021)The study outlines the importance of effective public administration. It was determined that the reform of the public service in Ukraine was the discrepancy between the Ukrainian system of public administration and ... -
Research of technologies and technical means for drilling and blasting of horizontal mine workings
(2020)The main scientific and practical results of the study of technologies and technical means for drilling and blasting horizontal and inclined (up to 120) mine workings based on high-performance self-propelled drilling, ... -
Results of studies to determine the optimal ratio of productive flows of coal, gas, water, rock in the conditions of diversification
(НТУ ДП, 2023)To be used in practice, the paper proposes certain methods defining the rational output from the viewpoint of production activities as well as correlation of the operating resources to achieve the specified production ...