Dnipropetrovsk, Ukraine

Dnipropetrovsk National University

Dnipropetrovsk, Ukraine

Oles Honchar Dnipropetrovsk National University is one of the leading establishments of higher education in Ukraine. It was founded in 1918. The first four faculties were history and linguistics, law, medicine and physics and mathematics.Nowadays the university has level IV accreditation, with 20 faculties and nearly 1,300 professors, 850 of them PhDs. The university has about 22,000 Ukrainian students and offers 87 majors. It has about 3,000 international students from 20 countries.It has strong ties with one of the largest world's rocket space centres, Yuzhnoye Design Bureau, and other major industrial and scientific organizations in the Donetsk-Pridneprovsk area with population of more than 15 million people.Being a big educational and research center, DNU provides training of all qualifications levels: Master’s degree, Specialist’s degree, Bachelor’s degree. It prepares researchers and university teachers at the post-graduate and doctor of science courses. One can obtain the second higher education.Oles Honchar Dnipropetrovsk National University boasts its enormous army of alumni. For the whole period of the university functioning about a hundred thousand specialists without whom one could hardly fancy any sphere of our life have been prepared. Among them there are statesmen, public figures, heads of enterprises and institutions of science and culture, schools, commercial enterprises; famous scientists, teachers, journalists.According to the decision of the Intersectorial Accreditation Collegiums and to the order of the Ministry of science and Education of Ukraine Dnipropetrovsk National University has been accredited as a higher institution of the 4-th level accreditation.According to the UNESCO poll DNU takes the 6th place of all Ukrainian higher education institutes due to its academic and research indexes.At present DNU has 63 agreements with higher education institutes and research centers from many countries of Europe, Asia, the USA, Canada.Almost since the beginning of TEMPUS Program’s activity in Ukraine the DNU has joined its work. The first project on reforming of economic was won in 1993. Since there the DNU has won 14 projects for the terms from 1 till 3 years in different sectors of science and education such as economics, management, university managements, social informatics and international economics. Due to this indicator the DNU is a regional leader.The DNU’s University Library has 2,600,000 volumes and computer library rooms. DNU has enough computer rooms with high-speed fiberglass access to the Internet, so all visitors can be provided by computer working place. DNU library with several millions books is one of biggest in the region and can supply all educational needs of guests.Since 2007 DNU has been taking part in Erasmus Mundus Project “External Cooperation Window” which is closely corresponded to DNU's development plan. First, in the plan there is a special paragraph about development of close relations with EU universities, strengthening of exchange programmes. Second, the participation should contribute in realisation of the item of raising the level of professional skills of DNU teachers and improving the style of teaching. And, third, the project can give us a possibility of progress in implementation of Bologna standards, including ECTS, quality issurance, etc. Wikipedia.

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Pal'chikov V.A.,Dnipropetrovsk National University
Russian Journal of Organic Chemistry | Year: 2013

The review analyzes methods of synthesis of 1,4-oxazines (morpholines) starting from vicinal amino alcohols and their derivatives, oxiranes, and aziridines. Examples of using morpholines in medicinal and organic chemistry as catalysts, auxiliaries, biologically active substances, and building blocks for their preparation are considered. The data published until February 2013 have been covered. © Pleiades Publishing, Ltd., 2013.

Demchik V.,Dnipropetrovsk National University
Computer Physics Communications | Year: 2011

Basic uniform pseudo-random number generators are implemented on ATI Graphics Processing Units (GPU). The performance results of the realized generators (multiplicative linear congruential (GGL), XOR-shift (XOR128), RANECU, RANMAR, RANLUX and Mersenne Twister (MT19937)) on CPU and GPU are discussed. The obtained speed up factor is hundreds of times in comparison with CPU. RANLUX generator is found to be the most appropriate for using on GPU in Monte Carlo simulations. The brief review of the pseudo-random number generators used in modern software packages for Monte Carlo simulations in high-energy physics is presented. © 2010 Elsevier B.V. All rights reserved.

Stupka A.A.,Dnipropetrovsk National University
Ukrainian Journal of Physics | Year: 2013

Small vibrations in a solid insulator in the presence of a self-consistent electric field with the first strength moment at the equilibrium equal to zero and the second one different from zero have been considered. A new variable, the second moment of electric field strength, was introduced into the Euler equation, and a temporal equation for this variable was derived on the basis of Maxwell equations in the hydrodynamic approximation. A wave equation was obtained, and its solutions - two transverse and one longitudinal sound vibration branches - are found. The transverse sound velocity is calculated; the results obtained correspond to those calculated using the shear modulus to an accuracy of about 10%. © A.A. STUPKA, 2013.

Stupka A.,Dnipropetrovsk National University
Physics of Plasmas | Year: 2013

Long-wave low-frequency oscillations are described in a Wigner crystal by generalization of the reverse continuum model for the case of electronic lattice. The internal self-consistent long-wave electromagnetic field is used to describe the collective motions in the system. The eigenvectors and eigenvalues of the obtained system of equations are derived. The velocities of longitudinal and transversal sound waves are found. © 2013 American Institute of Physics.

Syetov Y.,Dnipropetrovsk National University
Ukrainian Journal of Physical Optics | Year: 2013

We have found that the luminescence spectrum of 2-(2'-hydroxyphenyl)benzoxazole in its solid state includes only a band with a large Stokes shift assigned to a keto structure. Our quantum chemical calculations of the electronic structure of the molecule have demonstrated that restriction of the internal rotation increases quantum yield of the keto luminescence, while the luminescence with the normal Stokes shift can be quenched by the energy transfer.

Syetov Y.,Dnipropetrovsk National University
Journal of Fluorescence | Year: 2013

Energies and oscillator strengths of vertical transitions for various rotameric and tautomeric species of 2-(2′-hydroxyphenyl)benzoxazole (HBO), 2,5-bis(2-benzoxazolyl)phenol (DBP) and 2,5-bis(2-benzoxazolyl)hydroquinone (BBHQ) have been calculated in the ground and first excited states with the use of TDDFT methods. The TDDFT results demonstrate good correspondence to the frequencies of absorption and fluorescence bands of the benzoxazoles reported for measurements in supersonic jets and solution, but fail to predict relative energies of the enol and keto tautomers of DBP and BBHQ in the excited state. Low intensity of the fluorescence bands attributed to the conformations of HBO and DBP that do not undergo excited state proton transfer is shown to be caused by low concentrations of the conformations in the ground state. For the three compounds large-amplitude twisting of the keto tautomer is found to be one of radiationless processes resulting in decrease of the fluorescence with a large Stokes shift. © 2013 Springer Science+Business Media New York.

Belozyorov V.Y.,Dnipropetrovsk National University
International Journal of Bifurcation and Chaos | Year: 2014

A method allowing to study the dynamics of 3D systems of quadratic differential equations by the reduction of these systems to the special 2D systems is presented. The mentioned 2D systems are used for the construction of new types of discrete maps generating the chaotic dynamics in some 3D autonomous systems of quadratic differential equations. Strong simplification of all results gives an introduction of the Lambert function. Due to this function some implicit discrete maps become explicit. Examples are given. © 2014 World Scientific Publishing Company.

Borulko V.F.,Dnipropetrovsk National University
Proceedings - 2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves, MSMW 2013 | Year: 2013

The consideration of electromagnetic wave propagation in open irregular waveguiding structures usually assumes either smooth varying of medium parameters [1], [2] or their rigorously periodical perturbation [3]-[6]. Combination of smooth and oscillated parameter perturbations leads to additional peculiarities of Bragg scattering [7], [8]. Anisotropy of parameters causes coupling of waves with different polarization [3]. In the present paper using complex form [7], [8] of asymptotic method of Krylov, Bogoliubov and Mitropolsky (KBM) [9], mutual transformation of waves in open guided structures in the form of an impedance rod with spatially oscillated surface impedance has been theoretically considered. Influence of exiting of surface waves propagating along the impedance rod on scattering wave beams has been analyzed. For some types of perturbations the solutions of coupled-wave equations of KBM method have been obtained and expressions for perturbed wavenumbers of eigenwaves have been derived. In general case the differential equations with slowly varying coefficients are rather easily integrated by a numerical method. Longitudinal distributions of wave complex amplitudes describe combination of different physical phenomena in examined structure. © 2013 IEEE.

Based on the results of 15 years of research in five regions in the steppe zone of Ukraine we have analysed the relationship between species of the subfamily Platyninae and the eight most significant ecological factors for litter macrofauna in forest ecosystems. In the forests of Ukraine Calathus ambiguus (Paykull, 1790) is a typical mesophile, with a slight preference for pine forests. C. erratus (C.R. Sahlberg, 1827) is at its most numerous in xeromesophilous moisture conditions with an average abundance of ants. C. fuscipes (Goeze, 1777) favours broad-leaved forests with 40–80% tree crown density, a sparse herbaceous layer, and clay soil with high salinity. C. melanocephalus (Linnaeus, 1758) is at its most numerous in forests with a deep litter layer with average soil salinity. Dolichus halensis (Schaller, 1783) is often found in forests with of low crown density and favours areas with high salinity. Anchomenus dorsalis (Pontoppidan, 1763) favours plots with scattered trees, thick grass, mesophilous moisture conditions and low abundance of ants. Limodromus krynickii (Sperk, 1835) inhabits forests with a thin litter layer, hygrophilous moisture conditions and soils with low salinity. Oxypselaphus obscurus (Herbst, 1784) inhabits moist areas of forests with acid, sandy soil. The methods used in this research allow a quantitative multiple level assessment of the ecological niches of different species of litter invertebrate to be made. © 2015, Institute of Forest Ecology SAS. All rights reserved.

Filins'Kyy L.A.,Dnipropetrovsk National University
2013 9th International Conference on Antenna Theory and Techniques, ICATT 2013 | Year: 2013

In the summary the results of experimental research of the dielectric properties ε and tgδ, in microwave band 2-4 GHz foam specimens, which are located in sections of rectangular waveguides 72×34 mm are presented. The characteristics of reflection and absorption of electromagnetic waves of specimens were investigated. © 2013 IEEE.

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