Науковий вісник НГУ

Geology

M. A. Mizernaya, S. S. Aitbayeva, A. I. Mizerny, B. A. Dyachkov, A. P. Miroshnikova.Geochemical characteristics and metalogeny of Herzin granitoid complexes (Eastern Kazakhstan)

5

Mining

Yu. O. Zhulay, O. D. Nikolayev.Results of testing and modelling the “drilling rig with hydraulic vibrator ‒ rock” system

11

Ya. Ya. Lebediev, O. V. Stolbchenko, А. А. Yurchenko, I. O. Luts, V. V. Kovbasa.Mathematical model of heat processes in terms of gas-saturated rock breaking by means of shearers and tunneling machines

18

V. А. Mashchenko, О. Ye. Khomenko, V. P. Kvasnikov.Thermodynamic aspect of rock destruction

25

Solid State Physics, Mineral Processing

O. S. Beshta, V. M. Kuvaiev, I. K. Mladetskyi, M. V. Kuvaiev.Ulpa particle separation model in a spiral classifier

31

R. M. Tatsii, O. Yu. Pazen, S. Ya. Vovk.Modeling of the heat transfer process taking into account bursting expansion of fire-retardant coating

36

Geotechnical and Mining ­Mechanical Engineering, ­Machine Building

O. Bohdanov, V. Protsiv, V. Derbaba, S. Patsera.Model of surface roughness in turning of shafts of traction motors of electric carst

41

V. V. Pabyrivskyi, I. V. Kuzio, N. V. Pabyrivska, P. Ya. Pukach.Two-dimensional elastic theory methods for describing the stress state and the modes of elastic boring

46

I. Chudyk, P. Raiter, Ya. Grydzhuk, L. Yurych.Mathematical model of oscillations of a drill tool with a drill bit of cutting-scraping type

52

Electrical Complexes and Systems

О. Bialobrzheskyi, S. Bondarenko, S. Yakymets.Innovative technique for evaluating electric power distortion in cable transmission line

58

Yu.V. Kovalova.On the efficiency factor for induction motor at non-sine supply

64

V. F. Syvokobylenko, V. A. Lysenko.Earth fault protection for compensated electric networks based on frequency filters

69

O. Sheremet, O. Sadovoi, Yu. Sokhina.Combined control system on the basis of two discrete time equalizers

75

Power Supply Technologies

G. G. Diachenko, O. O. Aziukovskyi.Review of methods for energy-efficiency improvement in induction machines

80

G. G. Pivnyak, O. O. Beshta.A complex source of electrical energy for three-phase current based on a stand-alone voltage inverter

89

M. Yo. Fedoriv, I. V. Hlad, I. D. Halushchak, І. М. Mykhailiv.DC link power supply system of electric drill

94

Environmental Safety, Labour Protection

О. O. Lapshyn, M. V. Khudyk.Development of a fiber filter for dust chambers

100

V. Drozd, V. Bondar, V. Oksin, V. Stepanenko, O. Hrynkiv.Approximation of legislation of the European Union and Ukraine in the field of labor protection: the risks and advantages

106

F. Brovko, O. Brovko, S. Tanchyk, V. Yukhnovskyi.Optimization of water-physical properties of sandy soils of natural-technogenic origin

111

V. T. Bolonnyi, V. Ya. Grudz, Ya. V. Grudz, V. B. Zapukhliak, T. Ya. Dodyk.Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention

118

V. L. Bezsonnyi, O. V. Tretyakov, V. V. Asotskyi, R. V. Ponomarenko.Production risk management in the foundry

123

Information Technologies, Systems Analysis and Administration

A. Shporta, T. Kagadiy, O. Onopriienko.Asymptotic method in two-dimensional problems of electroelasticity

130

Economy and Management

T. Beridze, N. Lokhman, O. Bondarenko, A. Buhra.Harmonization of results of modeling production systems of Ukraine’s regions

135

Ya. Litvinova, K. Nosal-Hoy, K. Solecka, I. Taran.Improvement of efficiency of processes of mining product processing at ­transport hubs

141

S. Dovgyi, V. Nebrat, D. Svyrydenko, S. Babiichuk.Science education in the age of Industry 4.0: challenges to economic ­development and human capital growth in Ukraine

146

I. Yashchyshyna, O. Svider, O. Kushnir, M. Konovalova.Corporate social responsibility of the enterprise: shortcomings and social effects for Ukrainian society

152

V. V. Artamonov, P. B. Mikhno, M. H. Vasylenko, I. M. Shelkovska.Basic procedures of planning the rational use of disturbed lands

158

O. Yu. Mohylevska, L. V. Romanova, V. P. Zalizniuk, N. V. Коvalenko, S. M. Demydiuk.Marketing mechanisms for improving the efficiency of industrial enterprises

165