Preface Elements of quaternionic matrices calculation and some applications in vector algebra and kinematics G. Pivnyak, V. Kravets, K. Bas, T. Kravets & L. Tokar Computer analysis of photobiological utilizer parameters of solid oxide fuel cells emissions O. Beshta, V. Fedoreyko, A. Palchyk, N. Burega & R. Sipravskyy The submission backward trigonometrically functions as periodical functions O. Aziukovskyi, A. Golovchenko Peculiarities of experimental data reading for DC power supply of the stator in the problem of parameters identification of induction motor equivalent circuit O. Beshta, A. Siomin Estimation of electromagnetic compatibility of traction frequency converters for mine transport M. Rogoza, Yu. Papaika, A. Lysenko & L. Tokar The development of electric alkaline electrochemical fuel cell hybrid system W. Czarnetzki, S. Sevruk, W. Schneider, Yu. Khatskevych, K. Pushkin, I. Lutsenko & A. Rukhlov Reactive power and reliability of power supply systems I. Zhezhelenko, Yu. Papaika Multidimensional simulation of speed controlled induction electric drives with matching reducers and transformers V. Petrushin, V. Vodichev, A. Boyko & R. Yenoktaiev A promising approach to the identification and classification of steadystate operation of an iron-ore dressing section I. Kuvaiev, I. Mladetsky & M. Oriol The mutliphysical processes at strong electric field disturbance by different water micro-inclusions in XLPE insulation M. Shcherba Energy efficiency optimization of underground electricpower networks V. Trifonov, D. Trifonov, O. Kovalev, I. Koltsov & V. Berdnyk Electrical drives automated control systems of open-mine roller-cone drilling rigs V. Khilov Information technology of multi-criteria quality evaluation and increase of the clustering results sustainability O. Baybuz, M. Sidorova & A. Polonska Preprocessing of digital image for compression in JPEG O. Narimanova, K. Tryfonova, A. Agadzhanyan, V. Hnatushenko The new computational schemes for time series change-point risk estimation and their usage in the foreign exchange market trading O. Lutsenko, O.Baybuz Improved algorithm for detecting and removing shadows in multichannel satellite images with high information content V. Hnatushenko, O. Kavats & Yu. Kavats The statistical method of effective data structures designing for particular software and hardware environments V. Shynkarenko, H. Zabula & D. Petin The representative of national problems in the field of cybersecurity Y. Kovalova, T. Babenko The estimation of traffic descriptions in the information telecommunication networks V. Kornienko The methods and algorithms for solving multi-stage locationallocation problem S. Us, O. Stanina Mathematical modeling of electric conductivity of dense and fluidized beds M. Gubinskyi, S. Fiodorov, Ye. Kremniova, O. Gogotsi & T. Vvedenska Application of information technology for decrease of fine grinding power consumption N. Pryadko The algorithm of automatic lump material's granulometric composition monitoring I. Udovik, S. Matsyuk & V. Kornienko The distribution of energy consumption in wireless networks to anycast protocol Vik. Hnatushenko The mathematic model of the 3D generalized Neumann boundary problem for the rotating empty cylinder M. Berdnyk Small amount of random fluctuations of the underwater hydraulic transport pipeline V. Kozlov, I. Gulina, I. Shedlovsky & V. Gubkina Optimal control of underground conveyor transport system in coal mines R. Kiriya Fractal analysis for forecasting chemical composition of cast iron O. Gusev, V. Kornienko, O. Gerasina & O. Aleksieiev The continuous problems of the optimal multiplex partitioning an application of sets L. Koriashkina, A. Cherevatenko & O. Mykhalova Automation of mine-type dryer at the enterprises engaged in grain storage and processing S. Tkachenko, D. Beshta & M. Prosianik System of automated control of traffic flow in the context of direct route and bypass one A. Bublikov, I. Taran & L. Tokar Software diagnostics for reliability of SCADA structural elements O. Syrotkina, M. Alekseyev Social engineering threat for SME and European Cybersecurity Implementation program in Ukraine A. Sharko Adaptable model of OLTC regulating transformer in MATLab software L. Zhorniak, O. Volkova, K. Shapka