The Solving of Some Inverse Problems for Ordinary Differential Equation in Engineering Applications

Sirota, Dmitry; Babushkin, Mark A.

doi:10.26730/2618-7434-2018-2-65-74

Cited by 4 publications

(3 citation statements)

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“…Equation ( 12) has an infinite solution series and is difficult to use in practice. By introducing new independent variables, the equation is transformed into a functional dependence [11]:…”

Section: Methodsmentioning

confidence: 99%

Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Makridin¹,

Markov

Murko

et al. 2020

E3S Web Conf.

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Quarry wastewater is the main pollutant for the surface and underground natural water bodies during mining operations. Negative impact is expressed in contamination of natural reservoirs with fine suspended particles and salt solutions. To reduce the harmful impact of quarry wastewater they are treated using artificial filtering massifs. Such massifs are commonly constructed using artificial and natural sorbents. The retention of particles in the filtering layer is the result of two main processes: the adhesion of fine particles of suspension to the surface of the particles of the artificial filtering massif and the jamming of coarser particles in the pores of the filter layer. Simultaneously with the processes of contaminants capture, the process of contaminants washing out of the filter array may occur. It occurs when the particle size distribution of the filter layer is unappropriated and filtration speeds are high, and may be accompanied by deformation of the filter media.

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Section: Methodsmentioning

confidence: 99%

Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Makridin¹,

Markov

Murko

et al. 2020

E3S Web Conf.

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“…The more variable the deposit, the higher the density of the exploration network required. In some cases, complicated differential equations can be used for evaluation [6]. Moreover, precise evaluation of the mineral deposits is required for planning of the mining works and calculated possible coal output [7][8][9].…”

Section: Methodsmentioning

confidence: 99%

Conditions of Geotechnological Feasibility of Mineral Reserves

2019

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The evaluation of a deposit and mining project is a continuous process rather than a single act. Changes in budget, evaluation criteria, or in the area of costs and incomes may change results valid up to now and the views on using a deposit. Geological quantities are measurable with the help of geological conclusions and engineering calculations. Raw material reserves and their quality are defined as a substance that can be recovered with profit through current technologies and prices. This definition can result in two misunderstandings: geological reserves and the quality of raw materials are understood as variables not connected with mining activities. However, the quantity and quality of remaining reserves depends on changes in our geological knowledge, changing economic conditions, as well as on the exhaustion of reserves. The quantity of reserves and value of the cut-off grade depends not only on geological factors but also upon the methods of deposit extraction, costs and prices.

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“…The most frequently used methods evaluate deposits by means of a business project implemented on a deposit. Mathematic methods used in mineral deposits evaluation sometimes are rather complicated, as well as in the whole mining science, and may involve application of differential equations [7].…”

Section: Dmr = Production Costs + Planned Profitmentioning

confidence: 99%

Digitalization of Economic Evaluation of Mineral Deposits

et al. 2019

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The issue of mineral deposit evaluation is very topical and the aim of the present article is to fill a gap, which with far has been empty. The presented results of research are aimed to describe these issues in a comprehensive way. After the changes to the economic systems in many European countries the criteria of assessment and evaluation of mineral deposits have changed significantly, and authors of these “recomputations and calculations” use various methods. In these methods the main provisions are built upon geological and industrial values, specifications and indicators, so the economic trends are not completely considered. Therefore, in coming post-industrial era the structure of mineral resources use has been changed, and the leading methods of mineral deposits evaluation must include sufficient economic values, with a new codification.

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The Solving of Some Inverse Problems for Ordinary Differential Equation in Engineering Applications

Cited by 4 publications

References 0 publications

Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Theoretical Background of Quarry Wastewater Filtering Through Filters of Coarse-Grained Blasted Overburden Rocks

Conditions of Geotechnological Feasibility of Mineral Reserves

Digitalization of Economic Evaluation of Mineral Deposits

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