Видання зареєстровані авторами шляхом самоархівування
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Item Wireless energy transmission(Sumy State University, 2016) Lisachenko, V.O.Technologies have never played such an important role as nowadays. We can`t imagine our world without them. Тhey are spread everywhere. Wireless energy transmission is transmission by using different electromagnetic wave frequencies. Different frequencies are needed to reach different goals.Item Modelling of Ultrashort Electromagnetic Clusters Forming in Two-Stream Superheterodyne Free Electron Lasers(Sumy State University, 2015) Лисенко, Олександр Володимирович (ЕлІТ); Лысенко, Александр Владимирович (ЕлІТ); Lysenko, Oleksandr Volodymyrovych (ЕлІТ); Ромбовський, Михайло Юрійович; Ромбовский, Михаил Юрьевич; Rombovskyi, Mykhailo Yuriiovych; Коваль, Віталій Вікторович; Коваль, Виталий Викторович; Koval, Vitalii Viktorovych; Volk, I.I.Two-stream superheterodyne FELs are characterized by exceptionally high rates of the amplification of electromagnetic waves in the submillimeter- IR range. Such high rates of the amplification are achieved through the use of the additional amplification mechanism of SCW due to the twostream instability [1]. There is a possibility of the generation of ultrashort intense clusters of an electromagnetic field on the basis of such multiharmonic TSFEL as a result of the superposition of many harmonics. Such ultrashort electromagnetic clusters, as well as ultrashort pulses can have wide practical application for a number of fundamental and applied researches in physics, chemistry, biology and medicine.