Mobility coefficients in the systems of magnetic dipolar particles

In this paper, we present our first results on the mobility coefficients in the systems of magnetic dipolar particles. In our study, we investigate the influence of chain formation and polydispersity of particles on self-diffusion. The work is purely theoretical and combines direct calculations with the density functional approach to calculate equilibrium densities of chains. We study mainly bulk systems. It is shown that the formation of chains leads to the average decrease of mobility in monodisperse systems, but in the case of bidisperse particle size distribution, the particle mobility becomes a function of the fractional composition. The mobility coefficients obtained here are important for calculating the diffusion coefficients in case of gradient-induced diffusion (be that of the field or density gradient) in magnetic fluids with chain aggregates

Solvable Leibniz superalgebras whose the nilradical has the characteristic sequence (n−1,1 ∣ m)(n-1,1 \ | \ m) and nilindex n+mn+m

In this paper, we give a classification of solvable Leibniz superalgebras whose nilradical is a nilpotent Leibniz superalgebra with nilindex $n + m$ and characteristic sequence $(n-1, 1 \ | \ m)$

Search for axioelectric effect of 5.5 MeV solar axions using BGO detectors

A search for axioelectric absorption of solar axions produced in the $p + d \rightarrow {^3\rm{He}}+\gamma (5.5 \rm{MeV})$ reactions has been performed with a BGO detector placed in a low-background setup. A model-independent limit on an axion-nucleon and axion-electron coupling constant has been obtained: $| g_{Ae}\times g_{AN}^3|< 2.9\times 10^{-9}$ for 90% confidence level. The constrains of the axion-electron coupling have been obtained for hadronic axion with masses in (0.1 - 1) MeV range: $|g_{Ae}| \leq (1.4 - 9.7)\times 10^{-7}$.Comment: 6 pages, 4 figures, to be published in EPJ C. arXiv admin note: substantial text overlap with arXiv:1007.338

Search for solar axions produced by Compton process and bremsstrahlung using the resonant absorption and axioelectric effect

The search for resonant absorption of Compton and bremsstrahlung solar axions by $^{169}$Tm nuclei have been performed. Such an absorption should lead to the excitation of low-lying nuclear energy level: $A+^{169}$Tm $\rightarrow ^{169}$Tm$^*$ $\rightarrow ^{169}$Tm $+ \gamma$ (8.41 keV). Additionally the axio-electric effect in silicon atoms is sought. The axions are detected using a Si(Li) detectors placed in a low-background setup. As a result, a new model independent restrictions on the axion-electron and the axion-nucleon coupling: $g_{Ae}\times|g^0_{AN}+ g^3_{AN}|\leq 2.1\times10^{-14}$ and the axion-electron coupling constant: $|g_{Ae}| \leq 2.2\times 10^{-10}$ has been obtained. The limits leads to the bounds $m_{A}\leq$ 7.9 eV and $m_{A}\leq$ 1.3 keV for the mass of the axion in the DFSZ and KSVZ models, respectively ($90\%$ C.L.).Comment: 6 pages, 3 figures, contributed to the 9th Patras Workshop on Axions, WIMPs and WISPs, Mainz, June 24-28, 201

Study of diffusion properties of bidisperse magnetic fluids

Основной целью настоящего исследования является теоретическое изучение диффузии (потока частиц, цепочек из феррочастиц) в бидисперсных магнитных жидкостях с цепочечными агрегатами. Для этого сначала будет проведено исследование диффузионных свойств монодисперсной феррожидкости, которое в дальнейшем будет расширено на бидисперсные модели. В результате будет исследована зависимость диффузионных свойств системы от полидисперсности этой системы. Для бидисперсных систем будет исследовано влияние гранулометрического состава на поведение коэффициента диффузии.The main aim of the work is a theoretical study of diffusion (flow of particles, chains of particles) in bidisperse magnetic fluids with chain aggregates. Firstly, we study diffusion properties of a monodisperse ferrofluid, and then we extend this theory on bidisperse models. In a result, dependence of diffusion properties on a system polydispersity will be studied. An influence of granulometric composition on diffusion coefficient behavior will be studied.Программа развития УрФУ на 2013 год (п.1.2.2.3

Historical and cultural heritage as a factor for the tourist development of a city

The article considers the influence of historical and cultural heritage preservation on the development of the tourist potential of Kazan. Today, the protection of cultural heritage is one of the state priorities. The Republic of Tatarstan is distinguished by a rich cultural heritage. Multicultural and multi-confessional nature are present on this land traditionally. The capital of the republic - the city of Kazan - is visited annually by millions of tourists. The authors pay a special attention to the most visited tourist sites of the city: the museum-reserve "Kazan Kremlin", the Old-Tatar Sloboda, the Kazan Bogoroditsky Monastery and the historical center. In recent years, full-scale works have been carried out in the field of cultural heritage preservation, in particular on designated sites, whose results are now witnessed by the residents and the tourists of Kazan. In order to popularize the cultural heritage and attract the tourists to the city, Kazan museums conduct an active exhibition, methodical, publishing and other activities. All necessary infrastructure for the reception of tourists is created in the historical center of the city: hotels, food and specialized trade places. The cultural heritage of the city and modern tourist realities do not contradict, but complement each other harmoniously.peer-reviewe