Перегляд Періодичні видання НТУ "Дніпровська політехніка" по назві
Зараз показуються 255-274 з 3473
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Multi-purpose sorbent production by coal ash recycling
(National Mining University, 2016-03-30)Purpose. The main purpose of the work is to increase adsorption capacity of the carbon-containing sorbent. Methods. Adsorption and filtration processes were studied with the aid of chemical and physical methods, plotting ... -
Neural simulation-based analysis of the well wall stability while productive seam penetrating
(Dnipro University of Technology, 2021-12-30)Purpose is the development of mathematical models to evaluate deformation of parameters of the rock mass-well geological and engineering system within the anisotropic media. Methods. Both mathematical and neural modeling ... -
New data on halloysite of Ukraine
(Видавництво НТУ "ДП", 2021)A rare chromium-containing variety of halloysite has been identified in the weathering crust of the Derenyukhinskiy gabbro-peridotite massif. Its remarkable features are blue colour, Cr2O3 content in the amount of up to ... -
New technology for mineral deposits prediction to identify prospective areas in the Zhezkazgan ore region
(Dnipro University of Technology, 2021-06-30)Purpose. Exploration and predicting the prospective areas in the Zhezkazgan ore region to set up detailed prospecting and evaluation works using new integrated technologies of prediction constructions in the mineral ... -
New theory for the rock mass destruction by blasting
(Dnipro University of Technology, 2021-06-30)Purpose. To develop a new theory for the rocks destruction by blasting using a description of the formation processes of zones with various mass state around the charging cavity. Methods. The new theory for the rock mass ... -
Nickel discretization and quality review in Gllavica mine, Kosovo
(Dnipro University of Technology, 2021-03-31)Purpose. Professional approach to mineral deposit evaluation and estimation of Ni is done by modeling the ore body presenting the interest zone to be exploited. Methods. With the intensive development of professional ... -
Non-destructive testing of rock bolt fastening as an element of monitoring the state of mine workings
(National Mining University, 2019-03-30)Purpose. To substantiate the informative parameter, to develop the method and equipment for non-destructive testing (NDT) of rock bolt fastening, as an element of geomechanical monitoring of the mine workings state. Methods. ... -
Nonlinear criteria and the influence of the average principal stress on rocks destruction
(National Mining University, 2018-12-30)Purpose. Consider possible series methods of Mohr-Coulomb nonlinear criterion that takes into account stresses in the plane of fracture. Investigate the influence of the average principal stress on rocks destruction when ... -
Northeastern part of the Bilanivske ferruginousquartzite quarry: Risks of mining allotment
(Dnipro University of Technology, 2021-09-30)Purpose. Substantiation of the managerial decisions to minimize the risks of mining the Bilanivske ferruginous quartzite quarry on its northeastern margin. Methods. The legislative, methodological, cartographic and ... -
Nuclear-and-fuel power industry of Ukraine: production, science, education
(National Mining University, 2017-12-30)Purpose. To define relevant problems and propose ways for development of production, scientific and educational spheres associated with nuclear-and-fuel power industry of Ukraine. Methods. The current state of uranium and ... -
Numerical analysis of reducing tunneling effect on viaduct piles foundation by jet grouted wall
(Dnipro University of Technology, 2021-03-31)Purpose. The target of this study is divided into two parts. The first part is concerned with capability of numerical model to simulate the tunneling process. The second part is related to studying the interaction mechanism ... -
Numerical experiments concerning long-term deformation of rock samples
(National Mining University, 2019-12-30)Purpose is to develop modeling methods of long-term rock sample deformation and failure under various loading conditions with the help of finite-element method of failure rock modeling (DESTROCK-FE). Methods. DESTROCK-FE ... -
Numerical methods of geomechanics tasks solution during coal deposits’ development
(National Mining University, 2016-09-30)Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of ... -
Numerical modelling of massif zonal structuring around underground working
(National Mining University, 2016-09-30)Purpose. To identify indicators of massif zonal structuring around underground working using numerical modeling techniques. Methods. Research into massif zonal structuring was performed using finite element method and ... -
Numerical modelling of the effect of temperature variation on stope stability in Bushveld Igneous Complex
(National Mining University, 2019-06-30)Purpose. This paper presents the result of the research carried out on the effect of increasing temperature and stresses with depth of mining on the stability of stope within the Bushveld Igneous Complex (BIC), where the ... -
Numerical simulation of an external ballistic problem using analytical approach and atmosphere flow visualization by finite element method
(2023)Purpose. Analysis of the dynamic characteristics of the cargo in the presence of the speed of its carrier, taking into account the influence of the external environment and the determination of factors that affect the ... -
Numerical simulation of polluted air suction near the road
(2018)Development of 2D numerical model, which allows quick computation of polluted air suction near the road. The purpose of the work is development of the fast calculating CFD model which takes into account the meteorological ... -
On the identification of Ti-Ta-Nb-oxides in “wiikites” from Karelia
(National Mining University, 2018-03-30)Purpose. With respect to the nature of Ti-Ta-Nb-oxides, which are included in the mineral associations that have historically gone by the now outdated name of “wiikites”, there is no unanimity of opinion. The main difficulty ... -
On the issue concerning improvement of a mud preparation technology at the expense of hydrodynamic cavitation
(Видавництво НТУ "ДП", 2022)Purpose is to improve the technology of drilling mud by applying hydrodynamic cavitation. Research methodology is represented by the theoretical and experimental studies of hydrodynamic cavitation, performed with the help ... -
On the methodology for considering scale effect of rock strength
(National Mining University, 2020-12-30)Purpose is to improve a methodology for considering the influence of scale effect by transferring to the evaluation of rock strength immediately within the rock mass. Methods. The research involves methods of critical ...