Перегляд Періодичні видання НТУ "Дніпровська політехніка" по назві
Зараз показуються 71-90 з 3446
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Damage to flexible pipes of coiled tubing equipment due to corrosion and fatigue: methods and approaches for evaluation
(National Mining University, 2017-12-30)Purpose. To propose an engineering approach for evaluating surface corrosion fatigue of flexible pipes of coiled tubing equipment, on the basis of the generalized data about corrosion fatigue behaviour of structural steels ... -
DE CULPARATIONIS
(Гуманітарного журналу, 2011)Устатті підводитьсяпід сумнів проблема, яку піднімають найсучасніші течії філософської та наукової думки, зокрема про те, що саме абсолютистські погляди на світ у епоху класичної метафізики зумовили недбале ставлення до ... -
Deep-water organic-mineral sediments of the black sea as the object of mining and dewatering
(2014)The results of laboratory investigations of grain-size, physical, mechanical and rheological properties of the deep-sea organic-mineral sediments sampled from the depth of 1,920 – 2,150 m at the polygon “Sapropels” in the ... -
Definite oeculiarities of toxic and potentially toxic elements distribution in coal seams of Pavlograd-Petropavlovka region
(2013)Викладені методики та результати визначення складу геохімічних тапарагенетичних асоціацій токсичних елементів в основних робочих пластах Павлоград Петропавлівського району Західного Донбасу, факторного та кластерного аналізу ... -
Definition of boundary values of particle fineness for machine classes allocation
(2013)Запропоновано математичне рішення задачі чіткого виділення границь крупних, дрібних і тонких класів частинок при переробці сипучого мінеральної сировини. -
Dependence between the height of rocks displacement zone with fissure and the size of stopes
(National Mining University, 2016-12-30)Purpose. To establish dependences describing changes in the height of rocks displacement zone with fissure in the course of stope development using experimental data about the stopes’ dimensions and parameters of the land ... -
Deshaling technology – a perspective method of enrichment of coal in Poland
(2016)Стаття присвячена сухому очищенню вугілля, випробування проводилися на збагачува-льному столі повітряного типу FGX-1. Дослідження проводилися на польському кам'яному вугіллі. Були проаналізовані можливості отримання чистого, ... -
Design of bottom hole assemblies with two rock cutting tools for drilling wells of large diameter
(National Mining University, 2020-09-30)Purpose. A methodology development for calculating the bottom hole assemblies (BHA) with two rock cutting tools for drilling the wells of large-diameter with an ability to manage the trajectory. Methods. A mathematical ... -
Designing cutting tools of mining machines for coal auger mining
(National Mining University, 2016-09-30)Purpose. The need for new technologies and techniques for the efficient development of thin coal seams. Methods. Mathematical and experimental modeling of the contact interaction of multipoint cutter with the rock. ... -
Destruction of rocks by the non-explosive depleting compounds during mining
(National Mining University, 2016-03-30)Purpose. Justification of the possibility of non-explosive coherent rocks destruction while carrying out stratal underground mine workings on the basis of the set of dependencies describing changes in physical and mechanical ... -
Determinants of environmental degradation: reflections on the impact of identified economic variables on the environment
(National Mining University, 2019-12-30)Purpose. The main objective of this study is to investigate the determinants of environmental degradation within the broader framework of the environmental Kuznets Curve analysis. To better understand the economic impact ... -
Determination of basic calculation and experimental parameters of device for bore hole cleaning
(National Mining University, 2016-09-30)Purpose. To substantiate the design and operating technological parameters of the device for the interval bore hole cleaning departing from the set dependences of active jets formation in the flow through the blade ... -
Determination of required measurement accuracy of parameters of technological process on Volnogorsk mining and smelting complex
(2013)На основании определения дисперсий технологических показателей в обогатительной технологии с помощью преобразования спектров дисперсий исходного потока полезного ископаемого определены требования к точности измерительного ... -
Determination of the influence of the degree of fracturing of the rock mass on the index of reduction of its strength
(2023)Purpose. The purpose of research of the presented scientific publication is to establish the regularity of changes in the generalized coefficient of strength reduction of disturbed rock massif depending on the degree of ... -
Determination of the injury probability among coal mine workers
(Dnipro University of Technology, 2021-06-30)Purpose. Establishing regularities of change in the injury probability and development of a methodology for determining the injury probability of coal mine workers to improve the occupational health and safety (OSH) ... -
Determination of the suitable drilling operating parameters in different geological formations El-Sharara Oil Field (South-Western Libya)
(National Mining University, 2018-09-30)Purpose. The objective of this study is to determine the best operating conditions for the most notable drilling parameters (i.e. weight on bit (WOB), rotary drilling speed (RPM), and characteristics of drilling fluid) ... -
Determining and determinable factors influencing the size of zone of land-use restriction
(National Mining University, 2020-03-30)Purpose. Identification and systematization of determining and determinable factors that affect the size of land use restriction zones to ensure both the legal component of land rights and the well-being of society as a ... -
Determining local wetness conditions within the mined lands using GIS
(National Mining University, 2020-12-30)Purpose. To provide methodologically determining local wetness conditions within Kryvbas mined lands taking into consideration the surface structure and using geoinformation technologies. Surface structure is the determinative ... -
Determining patterns of the geomechanical factors influence on the fastening system loading in the preparatory mine workings
(National Mining University, 2020-03-30)Purpose. Substantiation of calculating the rational parameters of reaction and yielding property of the fastening system in the preparatory mine workings. Methods. The stress-strain state analysis of the “massif – support” ... -
Developing information systems of operation schedules to stabilize the grade of a mineral
(National Mining University, 2017-12-30)Purpose. To develop information technology making it possible to obtain ore flow with the required grade parameters in the context of open-pit mining owing to the implementation of methods and algorithms optimizing operation ...