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Information × Registration Number 0217U002425, 0112U002330 , R & D reports Title The kinetics of phase and structure transformation in nanodispersive,spin-crossover and metal-polymeric systems, and in heterostructures popup.stage_title Head Kramar Valeriy Maxymovych, Registration Date 13-02-2017 Organization Yuri Fedkovych Chernivtsi National University popup.description2 As a result of the research established patterns of nanoparticles formation of a new phase at the Ostwald ripening stage. The estimated size distribution functions, depending on the time for critical and maximum sizes and other characteristics of nanoparticles strengthening phase in metal alloys. Spread modified for 3D-systems Lifshitz-Slezov-Wagner theory, initially developed for solid-state systems on liquid medium. Estimated growth rate constants of quantum dots synthesized by chemical methods. Calculated the rate of growth and distribution function of the quantum dots, obtained by molecular beam epitaxy on the surface of artificially grown quantum dot crystals, provided the quantum dots modeled to cone-shaped clusters, mass transfer between which is carried by surface diffusion, and carbon nanotubes. In the approximation of effective mass for electrons and dielectric continuum model - for phonons, by methods Green function theory is studied the interaction of electrons, holes and excitons with optical phonons in planar semiconductor nanoheterostructures - nano films with different strength electron-phonon coupling. As example nanofilms layered semiconductor 2H-PbI2, placed in a dielectric medium (glass or polymer E-MAA), GaAs in AlxGa1-xAs matrix variable composition and ?-HgS in ?-CdS matrix taking into account the effects of spatial constraints self-polarization and interaction with phonons calculated ground-state energy of the electron, hole and exciton and spectral functions depending on the form exciton absorption bands in these environments; analyzed their temperature changes, and in the AlxGa1-xAs/GaAs/ AlxGa1-xAs case - also concentration changes. The possibility of structural changes in the optical absorption spectra mentioned nanosystems under influence of external factors (polarization and angle of incidence exciting wave, temperature) and geometric sizes (nano film thickness) is investigated. Substantiates the possibility of use of these structures to create functional elements of optoelectronics and photonics devices. By methods of comparative analysis and numerical calculations evaluated the strength of on-bone fixing devices for fractures of long bones. Carried out theoretical estimate parameters of on-bone strength plates at various among central distances between the holes on the body plates and established minimum acceptable value of these distances. It is shown the impact for strength of on-bone construction on the cross-sectional dimensions on-bone fixatives(clamps) and the distance between holes. The proposed project method of determining the optimum location fixative and locking screws on the body plate with all kinds of simple and complex biomechanical loads on the system "bone-clamp". The obtained results make it possible to identify the most effective options for fixing construction while on the bone osteosynthesis in bone fractures of long bones of the musculoskeletal system. The mathematical model of removable prosthesis upper jaw and its biomechanical assessment is carried out for different sizes and materials from which it is made. Product Description popup.authors Іванський Богдан Васильович Івашко Віктор Васильович Венргенович Роман Дмитрович Гудима Юрій Васильович Деревянчук Олександр Володимирович Кондрюк Денис Васильович Крамар Валерій Максимович Кривецький Василь Васильович Кройтор Ольга Петрівна Максимов Артур Юрійович Москалюк Анатолій Валерійович Панько Ігор Ігорович Пуганцева Олена Валеріївна Стасик Мирослав Остапович Фесів Ігор Васильович Шайко-Шайковський Олександр Геннадійович Ярема Сергій Володимирович popup.nrat_date 2020-04-02 Close