Effect of anion doping on mobility of ionic charge carriers in solid solutions based on Ba2In2O5

In the work, mobilities of oxygen and protons are determined for F --substituted solid solutions based on brownmillerite Ba 2In2O5 and their concentration dependences are analyzed. It is found that small additives of the more mobile anion (F - ions) promote an increase in oxygen mobility as a result of additional effects of repulsion of ions of different nature in the anion sublattice. Mobility of oxygen at high fluoride concentrations decreases due to the overlapping of migration paths of diffusion, as both anions, fluoride ions and oxygen ions, move via oxygen vacancies. Concentration dependences of mobility of proton carriers have a similar character, which is related to the effect of the oxygen sublattice. The anion doping method used in the work can be recommended as the general method for improvement of the transport characteristics of oxygen-ionic and protonic conductors with a perovskite-like structure. © 2013 Pleiades Publishing, Ltd

Electric properties of oxyfluorides Ba2In2O 5-0.5x F x with brownmillerite structure

Synthesis of fluoro-substituted substances based on brownmillerite Ba 2In2O5 is carried out. The width of the homogeneity region of the Ba2In2O5-0.5x F x (0 < x ≤ 0.25) solid solution was established using X-ray analysis. Measurement of temperature dependences of conductivity in atmospheres with different partial pressure of water vapor (pH2O = 3.3 and 2 Ч 103 Pa) showed an increase in conductivity at T ≤ 550 C in a humid atmosphere, which is due to appearance of proton transport. The dependence of conductivity on partial oxygen pressure (pO2 = 0.21 Ч 105 to 10-15 Pa) is studied in the temperature range of 500-1000 C; ion transport numbers are calculated. The method of polarization measurements was used to determine transport numbers of fluoride. Total conductivity is divided into ion (proton, oxygen, and fluoride ion) and electron components. Analysis of concentration dependences of conductivities showed that low concentrations of fluoride allow increasing both the total and partial conductivities (oxygen-ion and proton) and, besides, allow shifting the "order-disorder" phase transition by 100 C to the low temperature range. © 2013 Pleiades Publishing, Ltd

SOME PROBLEMS OF HOUSING AND COMMUNAL COMPLEX TODAY – HOW TO FIND A WAY OUT OF THE CRISIS?

В статье рассмотрены актуальные проблемы жилищно-коммунального комплекса в условиях экономического кризиса, такие как ухудшение финансовых проблем ЖКХ за счет роста неплатежей за капитальный ремонт домов и несовершенство проведения реформы жилищно-коммунального хозяйства на региональном уровне. Недостатки реформы ЖКХ рассмотрены на примере конкретного субъекта РФ – Смоленской области. Выделены отрицательные и положительные результаты реформы по основным направлениям.The article deals with topical problems of housing and community amenities in times of economic crisis, such as the deterioration of the financial problems of housing and community amenities due to the growth of non-payment for the overhaul of buildings and inadequate reform of housing and communal services at the regional level. Disadvantages of housing reform are studied using as an example a federal entity of the Russian Federation – Smolensk region. Negative and positive results of the reform are highlighted in key areas

PROSPECTS OF DEVELOPMENT OF THE TAXATION OF PHYSICAL PERSONS IN THE RUSSIAN FEDERATION

The article reveals the prospects for the development of taxation of individuals in the Russian Federation, the need for the formation of legislation in this area is substantiated. The main aspects of the state tax policy in the issues of introduction of the alternative system of family taxation are considered. The possibilities of using foreign experience in the Russian Federation for developing the main provisions of tax administration in this area are singled out. In particular, it is planned to introduce amendments to the legislation of the Russian Federation, to determine the status of the family as a separate category of taxpayers, a specific definition of the tax base and the provision of tax incentives as the main instruments for managing family taxation at the present stage

The Principles and Tools of Promotion of Educational Services on the Educational Portal of the Region

Research objective is development of the principles and systematization of instruments of promotion of educational services on the educational portal of the region.During the research methods of a theoretical research were used: abstraction, the analysis and synthesis, ascensions from abstract to concrete.In the article, the principles of promotion of educational services on the educational portal of the region are developed and their characteristic is given. Instruments of internet marketing for promotion of educational services on the educational portal of the region are systematized and its advantages are defined. The system of indicators of assessment of quality of functioning of the educational portal based on opinion of users and experts is offered. The directions of realization of marketing strategy of promotion of educational services for achievement of her purpose — attraction new and deduction of the available clients, increase in their knowledge about activity of higher education institutions in education market are proved

Assessment of the cogeneration biogas plant possibilities in the autonomous power supply system

The use of biomass and wood waste for heat and power production is increasing from year to year. Waste wood is low carbon footprint, has low sulfur content and relates to renewable energy sources. The paper demonstrates the possibility of increasing the energy efficiency of power supply system of the Stepanovka settlement (Tomsk region) by means of replacing diesel power plant (DPP) by the biofuel gas piston CHP. The assessment was based on the possibility of the technical and economic comparison of power supply options in the settlement