Condensed Matter Physics, 2014, № 2
http://dspace.nbuv.gov.ua:80/handle/123456789/150103
2024-03-29T09:48:49ZMykola Lebovka's 60th birthday
http://dspace.nbuv.gov.ua:80/handle/123456789/158421
Mykola Lebovka's 60th birthday
May 15 this year was the 60th birthday of Mykola Lebovka, an outstanding Ukrainian scientist in the field of physical chemistry of condensed matter, Doctor Habilitus in Physics and Mathematics, professor, head of the Department of Physical Chemistry of Disperse Minerals at F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Acad.Sci. of Ukraine.
2014-01-01T00:00:00ZAnatolij Svidzynskyj's 85th birthday
http://dspace.nbuv.gov.ua:80/handle/123456789/158420
Anatolij Svidzynskyj's 85th birthday
This year a prominent Ukrainian theoretical physicist and public leader Anatolij Svidzynskyj marks his 85th birthday.
2014-01-01T00:00:00ZStatistical analysis of self-similar behaviour in the shear induced melting model
http://dspace.nbuv.gov.ua:80/handle/123456789/153594
Statistical analysis of self-similar behaviour in the shear induced melting model
Lyashenko, I.A.; Borysiuk, V.N.; Manko, N.N.
The analysis of the system behavior under the effect of the additive noises has been done using a simple model of shear melting. The situation with low intensity of the order parameter noise has been investigated in detail, and time dependence of the order parameter has been calculated. A distinctive feature of the obtained dependence is power-law distribution and self-similarity. The generalized Hurst exponent of the time series has been found within multifractal detrended fluctuation analysis. It is shown that the self-similarity of the time series increases when the noise intensity reduces.
2014-01-01T00:00:00ZNon-linear model of impurity diffusion in nanoporous materials upon ultrasonic treatment
http://dspace.nbuv.gov.ua:80/handle/123456789/153578
Non-linear model of impurity diffusion in nanoporous materials upon ultrasonic treatment
Peleshchak, R.M.; Kuzyk, O.V.; Dan’kiv, O.O.
Non-linear theory of diffusion of impurities in porous materials upon ultrasonic treatment is described. It is shown that at a defined value of deformation amplitude, an average concentration of vacancies and temperature as a result of the effect of ultrasound possibly leads to the formation of nanoclusters of vacancies and to their periodic educations in porous materials. It is shown that at a temperature smaller than some critical value, a significant growth of a diffusion coefficient is observed in porous materials.; Створено нелiнiйну теорiю дифузiї домiшок у поруватих матерiалах пiсля ультразвукової обробки. Показано, що при певному значеннi амплiтуди деформацiї, середньої концентрацiї вакансiй та температури в
результатi впливу ультразвуку можливе формування нанокластерiв вакансiй та їх перiодичних утворень
в поруватих матерiалах. Показано, що при температурi, меншiй за деяке критичне значення, у поруватих
структурах спостерiгається значне зростання коефiцiєнта дифузiї.
2014-01-01T00:00:00Z