It was investigated the influence several additives and process parameters on the properties of piezoelectric ceramics based on PZT phase systems. It was shown that the use of the substitution of Pb2+ ions on the Bi3+, and Ti4+ ions, and Zr4+ to Fe3+ and Mn4+, as well as the method of "chemical assembly «allows to obtain increase the Curie temperature of ceramic samples of 50 - 170°C. The theoretical aspects of this area of research have been discussed in this article.
Keywords: ferroelectric phase, Curie temperature, ceramics, precursors, perovskite, a solid-state method, a method of «chemical assemblage
The results of analysis of computational aspects of the method of obtaining the XANES spectra for Ru L2 ,3-edges by integrating the dipole transition matrix elements involving DFT. The convergence of the numerical integration procedure for the parameters used in the earlier papers, crystals as an example [Ru (NH3) 6] 3 +. More specifically, it is proved that it is possible to use a small area of integration and big enough step between points, which helps to minimize the requirements for computing power and offers the prospect of using this method for the simulation of the XANES spectra in coordinated ruthenium catalysts for splitting water research in the field of solar energy.
Keywords: RuLedge, XANES, DFT, density functional theory, X-ray absorption spectroscopy, geksoaminoruteny, Ru (NH3) 6.
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The paper presents the results of research level of perception a political order among students of Grozny (GGNI) at the beginning of 2012. The questioning method was used. In total 320 respondents were interviewed, and captured the age group from 17 years to 20 years. On national structure the group was almost uniform (95,9% - Chechens). The main purpose of questioning - the definition of the emotional component of the group political installation on the classical method of semantic differential Charles Osgood. A comparative analysis was carried out of the averaged semantic level of emotional portraits and making real political order. It is revealed, the image of an order is in the Republic 45% closer to positive "ideal" construct in comparison with image of an order in Russia as a whole. It is received, by the beginning of 2012 perception level considerably decreased to normal value (in comparison with "incredibly positive" 2011). Thus small excess of perception of a political order in the Republic remained.
Keywords: a political order, a political tensions, semantic differential, factor analysis, the affective component, questioning
The analytical method determination parameters of the three-parametrical Waybill distribution for final volume population on the basis received parameters on a sample is stated in this work The algorithm of calculation on which computing experiment is made is presented. On the basis of these calculations the conclusion that it is necessary to determine by this analytical method parameters of the three-parametrical law of Waybill for set of final volume on the basis of the received parameters on a sample is drawn.
Keywords: population of final volume, sample, dispersion, an average quadratic deviation, distribution parameters, durability became
Results of the flight research spent in student's RBSU environment in December, 2011 are presented. The method of semantic differential is put in a basis of questioning. Respondents were offered to estimate four types of a political order by using of 20 double modal seven-ball scales. Two "ideal" orders are as much as possible attractive order and as much as possible unattractive one. And two real orders are the political order existing in Rostov region and a political order in Russia as a whole. The estimation was spent in linear approach, and also in frameworks the early developed phenomenological model considering typical nonlinearity, which is probable for a considered case. It is received, that in the end of 2011 students were characterized by negative perception as political order in area (with level -0.7, a level was normalized from +1 to-1), so an order in Russia in whole (with level -0.77). Surfaces of the stationary states, allowing to detail dynamics of change of perception level are calculated. Comparative dynamics of behaviour of emotional perception level of real political orders from the end 2009 on the end 2011 is presented.
Keywords: questioning, semantic differential, political order, emotional perception level, typical dependence, nonlinear approach, catastrophe theory, dynamics of change of perception
The article deals with research problems, tendencies and directions of development of the market of information services in the context of a specific region, Stavropol territory. Expanded categorical apparatus of the sphere of services based on the impact of information services on the development of all kinds of activity in sphere of services. Designed on the basis of the situational approach, the mechanism of control of the market of information services, contributing to the transformation of external and internal to the subject of management of information and knowledge in information goods within the borders of its current or future needs, tactical, or strategic interests.
Keywords: The scope of services, information services, information market, development, factors, prospects, tendencies, regularities.
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When teaching students the basics of automatic control in the food, chemical and petrochemical industries have difficulty with the lack of opportunities for experiments on real objects. This article discusses the possibility of using software modeling complex ChemCAD to study the process of rectification to simulate real object to its mathematical model, to conduct research of static and dynamic regimes, to study the characteristics of various systems of regulation processes.
Keywords: rectification, ChemCAD, simulation, simulator, automation.
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The method of estimation of safety of bearings build constructions is considered during work of crane with a maximal carrying capacity. The calculation chart of building and variants of appendix of power influences is analyzed. The results of instrumental inspections of materials of build constructions are conducted. The calculations of build constructions of building are realized on the standardized programmatic complex. On results test calculations a conclusion is done about possibility of safe.
Keywords: building structures, methods of calculation, load, safety, strength, deformation, fittings, reinforced concrete
When constructing a model process for the site contamination suction inert materials as process equipment, we considered power unit ABZ. Evaluate the effectiveness of the basic techniques for the selection of equipment to capture pollutants and cleaning them from the air.
Keywords: asphalt plant, dust particles, pollutants, dust removal system.
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The stochastic model of an assessment of mechanical characteristics of strength on the basis of the analysis of function of reliability is offered. Communication of function of reliability with normative factor of safety factor is correlated. Recommendations to destination mechanical characteristics of strength on Gauss to a level and factors of a variation are given. Analytical and graphic dependence for optimum purpose of parameters of reliability of units of hardware on the lead strength researches is offered.
Keywords: Strength, reliability, factor of a stock, mechanical characteristics, the likelihood analysis
At this paper we propose a new approach to processing knowledge through intelligent automation system travel agency. This approach is based on models of knowledge, interpreted using semantic knowledge. The principles of construction and operation of the architecture of the system to automatically obtain and process context information as an example of intellectual semantically-oriented system that provides travel services. Completed description of the ontology used by the tourist area. Demonstrated the use of context information from the knowledge base in the processing of queries to the system.
Keywords: ontology, automation of a travel agency, intelligent, contextual data, behavioral design patterns
An accurate solution of problem for a plane horizontal cutout is proposed where stress concentration subject to geometrics of the cutout is considered. This solution makes possible to solve problems relating to optimum designing of structures and machinery with similar technological elements.
Keywords: cutout, conjugation, problem, equation, solution, stress.
The construction of a two-dimensional tiling by a specific projection of three-dimensional cubic lattice is considered. Different a periodic tiling’s, consisting of equal rhombi, are obtained by different choice of the projection region. They are ordinary a periodic tiling, having local elements of symmetry group С6v and chiral trigonal stacking, built like chiral pentagonal Penrose’s quasilattice [1], which occurs in virus cap sides.
Keywords: Quasicrystal, quasilattice, two-dimensionalquasicrystal, chiral quasicrystal.
The proposed technique author improvement of data processing reduces costs for the purchase of servers and networking equipment. Described cloud models will enhance the reliability of IT resources and contribute to the flexibility of the IT infrastructure.
Keywords: cloud computing, data processing, security of IT resources, the cloud properties, types of computing server.
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