9 articles in this issue
Borys Liubarskyi,Natalia Lukashova,Oleksandr Petrenko,Tetyana Pavlenko,Dmytro Iakunin,Sergiy Yatsko,Yaroslav Vashchenko
A procedure for determining basic estimation parameters has been devised for the proposed structure of the electromechanical shock absorber. The procedure is based on a simplified mathematical model for determining the electromagnetic and electromotive fo... see more
Kostyantyn Korytchenko,Pavel Krivosheyev,Dmytro Dubinin,Andrii Lisniak,Kostiantyn Afanasenko,Serhii Harbuz,Olga Buskin,Andriy Nikorchuk,Ivan Tsebriuk
The paper reports a study into the initiation of detonation in pulse detonation engines. The chosen direction to resolve this issue is the use of detonation tubes with multifocal ignition. We applied two spark discharges as a source of ignition, which ign... see more
Oleksandr Mytrofanov,Andrii Poznanskyi,Arkadii Proskurin,Yury Shabalin
We have devised a scheme for the energy-generating unit based on the internal combustion engine 1Ch 6.8/5.4 with a spark ignition and a two-stage system for the recovery of heat from the exhaust gases. The basic elements for the first and second stages of... see more
Nina Efremova,Alexander Nilva,Nataliya Kotovskaya,Marina Dryha
Vessels at shallow-water outer anchorage are exposed to a complex system of waves. This system results from the diffraction of sea-incident waves against a ship. When entering shallow waters, three-dimensional waves turn into two-dimensional ones. The wav... see more
Olga Michuta,Alesia Sinchuk,Serhii Yaroshchak
The manuscript is aimed at improving the mathematical model of oil production in a heterogeneous environment with the use of a thermal mode of displacement considering the action of capillary effect. We have constructed an algorithm to solve numerically t... see more
Larysa Yuzevych,Ruslan Skrynkovskyy,Volodymyr Yuzevych,Vitalii Lozovan,Grzegorz Pawlowski,Mykhailo Yasinskyi,Ihor Ogirko
A set of key parameters and information flows has been formed to simulate stages of probing the outside surface of underground metal pipelines (UMP) taking into account pH of the soil contacting with the pipe metal.Specimens of 17G1S steel placed in acid,... see more
Sergey G. Vesnin,Mikhail Sedankin,Vitaly Leushin,Victor Skuratov,Igor Nelin,Anastasiia Konovalova
Currently, there is growing interest among specialists in the use of non-invasive dose-free technologies for diagnosis and monitoring treatment of various diseases. Microwave radiometry enables non-invasive detection of thermal abnormalities in internal t... see more
Irina Boshkova,Alexandr Titlov,Natalya Volgusheva,Natalia Kolesnychenko,Tetiana Sagala
The paper considers the issue on ensuring a thermal regime of the magnetron's anode unit by replacing an air-cooling system with the system of liquid cooling. It has been argued that a liquid cooling system is most suitable for magnetrons, for which curre... see more