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Information × Registration Number 0220U100745, 0117U004851 , R & D reports Title Impulse and sinusoidal fields in nonlinear and layered electrodynamic structures and nanosystems as field transformators and models of spintronic elements popup.stage_title Head Dumin Oleksandr M., Registration Date 24-01-2020 Organization V.N. Karazin Kharkiv National University popup.description2  Object of investigation: transient field transformation in nonlinear and layered media, the phenomenon of interaction between spins of electrons, atoms of magnetic material of nanostructures considering temperature changes and external electromagnetic field. Purpose of the stage: to analyze the parameters of occurrence of interaction of transient field with nonlinear medium, characteristics of interference immunity of the recognition system for objects in layered media using artificial neural networks and interaction of magnetic nanostructure with external electric circle. Distribution of field and energy of transient radiator in the near zone for linear medium and influence of its Kerr nonlinearity on time forms of fields are investigated. The influence of artificial neural networks structure on the level of complexity of the problem of recognition of perfectly conductive subsurface objects by reflected impulse ultrawideband electromagnetic field is studied. The cases of different sizes and forms of objects, irradiation by a plane wave with normal falling or by almost point source, stability of recognition to additive noises of different levels, receiving by a point receiver or its system of different polarizations, preliminary processing of received signals based on discrete tomography approach are analyzed. Interaction of parameters of non-linear magnetic structure and external electric circle as an element of spintronic device is explored. The investigations carried out are relevant to design the novel ultrawideband impulse radar devices of high power, introscopy of lossy medium, and novel in principle devices of spintronics. Product Description popup.authors Yeliseyeva Nadezhda P. Antonenko Yevgen O. Akhmedov Rolan D. Berdnik Sergey L. Botsula Oleg V. Volvach Yaroslav S. Katrich Viktor O. Kiyko Viktor I. Mustetsov Mykola P. Nesterenko Mikhail V. Plakhtii Vadym A. Prishchenko Oleksandr A. Pshenichnaya Svetlana V. popup.nrat_date 2020-04-02 Close