10 articles in this issue
Alexander Posmituha,Svyatoslav Kravets,Vladimir Suponyev,Yevhenii Kulazhenko
The object of the study is a working element with a wedge tip for static perforation of the soil with the laying of several cases for underground utilities. One of the problems that require research is the laying, location and proximity of various types o... see more
Viktor Zavodyannyy
The object of research is the crystal structure of the polymorphic modification of the K2GeF6 compound. One of the problem areas is the existence of a large number of diffraction spectra obtained with the Bragg-Bertrand survey geometry in the PDF-2 d... see more
Mykola Ostroverkhov,Mykola Reutskyi,Danylo Trinchuk
The electric drive with a squirrel-caged induction motor working in frequent start-stop modes is the object of this study. These drives have wide applications nowadays, such as in electric vehicles and hybrid electric vehicles, so improvement of their eff... see more
Yurii Pachkolin,Alexander Bondarenko,Serhii Levchenko
The object of research is an industrial induction steel-melting furnace. One of the most problematic places in induction steel-melting furnaces is low energy efficiency due to their constructive imperfections and the existing technological process of ther... see more
Volodymyr Demchenko,Andrii Trubachev,Serhii Hron
The object of the research is a method of fast analysis of multi-criteria evaluation on the example of comparing the efficiency of domestic gas WHGA-type boilers. Currently, the Ukrainian market offers a large number of gas boilers of Ukrainian and foreig... see more
Sergey Alekseyenko,?leg Yushkevich
The object of research is the processes of hydrodynamic and heat and mass transfer occurring during the icing of aircraft during flight in adverse meteorological conditions, as well as the system of protection against icing. One of the problematic places ... see more
Petro Hubskyi,Valeriy Kuznetsov,Anton Drubetskyi,Andrii Afanasov,Mykola Pulin
The object of research is the power regimes in traction power systems for both centralized and distributed power when introducing high-speed traffic. The introduction of high-speed traffic on electrified railways of Ukraine has begun a number of restricti... see more
Vasyl Chekurin,Yuriy Ponomaryov,Myroslav Prytula,Olga Khymko
The object of research is the management system of the gas transmission system (GTS) of Ukraine. The analysis shows that the GTS effectiveness is hampered by the information heterogeneity of the available automation means and the lack of automated data ex... see more
Anatoly Semenov,Gregory Kozhushko,Tamara Sakhno
The object of research is the rapeseed, which is the first among oilseeds by the volume of sowing. One of the most problematic places of the agricultural complex is an increase in the quantity and quality of the seed material. To solve this problem, scien... see more