Calcating-experimental method shows that on the basis of cement and fine-grounded mineral powder, complex binding materials can be obtained, providing high strength of obtained stones.

Keywords: cement, mineral powder, components, optimization, strength

In this article the problems of transport modeling, modeling methods of the paid roads, their features, advantages and disadvantages are considered.

Keywords: transport modeling, check-point on the paid road, point of collection of a fare, modeling methods, imitating modeling, the program AIMSUN complex

This work deals with the integrated study of the composition and structural characteristics of the rock-forming minerals in Millerovsky bentonite clay. The qualitative and quantitative analysis of the clay samples is made by X-ray diffraction , X-ray photoelectron spectroscopy and thermal analysis . The morphological and microstructural features of minerals are investigated by scanning electron microscopy. The application of the method of direct theoretical calculation of the diffraction patterns is showm to determine the crystal-chemical parameters of the studied minerals. The results are aimed at explaining a number of physical and chemical properties of layered aluminosilicate.

Keywords: clays, clay minerals, layered silicates, x-ray diffraction, crystalline systems

The results of computational experiments to determine the characteristics of the porous piezoelectric ceramics based on the methodology, including the effective modules method, simulations of representative volumes on a simple random method and the method of Witten-Sander, finite element method to solve static piezoelectric problems for heterogeneous composite media and the accounting of inhomogeneous polarization near the pores are presented. A comparison of the results of computer simulation with the known experimental data for the porous material PZT-4 and its analogs is realized. It is concluded that the accounting of inhomogeneous polarization in the vicinity of porous provide the better agreement between numerical results and large number of known experimental data. Thus, for most effective constants the smallest errors are obtained for a representative volume of the porous piezoelectric material, constructed by Witten-Sander method.

Keywords: piezocomposite, porous piezoelectric ceramics, inhomogeneous polarization, mathematical modelling, models of representative volumes, finite element method, effective moduli

The simulation of the process of the electrically active impurities relocation in the electric field of Schottky diode space charge region has been made. The analysis of the simulation results shows the possibility of controlled alloying impurities relocation on the depth about tens of nanometers caused by electrically active atoms diffusion in the electric field of Schottky diode space charge region.

Keywords: diffusion, space charge region, Schottky diode

Scientific-research Laboratory and industrial tests of equipment for NDT methods ZBK".The Department ELA RSSU conducted a series of laboratory and industrial tests of the device developed at the Department of ELAH for concrete structure NDT methods. A schematic and a description of the pathogen fluctuations and semiconductor receiver, as well as diagrams of dependence of the passage of the amplitude of oscillations of the pathogen in the concrete structure of the axial load.The most important results are obtained dependence of the amplitude of oscillations in ZBK from the amount of axial load from the composition of fillers experimental sample.

Keywords: Nondestructive testing, reinforced concrete constructions, the causative agent of oscillations, the receiver oscillation, the amplitude of oscillations, axial load.

The composition, basic properties and application scope of the two main types of expanding binders historically most widespread in Russia such as gypsum-alumina expansive cement and expansive cement Type M are given. The expansion kinetics of the binders ranging from gypsum-alumina expansive cement to expansive cement Type M is observed. The role of lime as a supplement and as a hydration product of the Portland cement in the expansion process is shown: as a supplement in small values (2-4%) to gypsum-alumina expansive cement with higher gypsum concentration stabilizes the hardening and expansion process, in higher values boosts the expansion process to self-destruction. Optimization criteria of the expansion kinetics aimed at obtaining project expansion in 10 days of hardening without any additional chemical additives are proposed.

Keywords: gypsum-alumina expansive cement, expansive cement type M, expansion kinetics, lime

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: Герметичный компрессор объемного действия, система охлаждения, холодопроизводительность, перегрев, холодильный коэффициент COP, энергоэффективность.

2-D and 3-D problems of the elasticity problems for incompressible materials are considered. Solving these problems using the finite-element method results in solving the linear algebraic equations system with sparse matrix. For incompressible materials this system is the system with a saddle point (i.e. the matrix eigen values have different signs). Thus, applying such solving methods as the conjugate gradient method and the generalized minimal residual method is impossible. Uzawa method is suggested to be used for such problems. It is an iterative process, and at each iteration it is necessary to solve the linear algebraic equations system, but this system is without a saddle point. The different variants of Uzawa algorithm are realized within CAE Fidesys software package, and their efficiency is compared in the article.

Keywords: theory of elasticity, incompressible materials, finite-element method, Uzawa algorithm, iteration methods for systems of linear algebraic equations

В данной статье приводятся примеры стандартных и не стандартных точек контакта с потенциальными клиентами, описаны механизмы их выявления, а также приведены примеры из практического опыта работы авторов по данной теме. Дано определение понятию «клиентоориентированнсть» с точки зрения клиента, и предложены варианты, где применима данная стратегия. Поднят вопрос о качестве обслуживания и что стоит за этим пониманием для клиента, чего он ждет от сферы услуг и на что рассчитывает. В статье рассмотрены этапы анализа точек контакта, приведены примеры влияния этих точек на формирование лояльного отношения клиента к качеству услуг. 

Keywords: услуга, точки контакт, идентификация, стратегия, анализ, клиент, потребитель, контакт, точки взаимодействия, ориентация на клиента

The problem of temperature stresses in revetments of concrete plates taking in the account various conditions of temperature impact is considered. Contact conditions for various friction coefficient are considered. The simulation is made using finite element method in Ansys © software. The examples of exact simulations for stress fields are given for different parameters of problem

Keywords: temperature stresses, concrete plate, finite element method

The nano-catalyst ceria (CeO2), activated by Pt nanoparticles, is known for being prospective and efficient material widely used in catalysis, fuel elements, and sensors. One of the most up-to-date methods of catalysts' reasearch is X-ray absorption spectroscopy (XAS) that is sensitive to the chemical state of catalyst's active centers [1,2]. Using XAS in the fluorescense detection mode at CeL1 line with high precision we studied electronic structure of Pt-activated nanoparticles of ceria at various redox conditions. In order to detect partial X-ray fluorescence yield the emission line CeLγ3 was used, which allowed us to increase spectral resolution. We researched local atomic and electronic structure of the materials under study. Oxygen vacansies were found to appear on the nanoparticles surface of ceria at 5% CO He atmosphere. Theoretical modeling of the obtained spectra at CeL1-edge demonstrated good agreement with experiment.

Keywords: X-ray absorption spectroscopy, HERFD, XAS, Ce-based catalysts, oxygen vacansies

In article mathematical formalization of concept of a lag effect of system as a whole, and in particular a lag effect of the social and economic system arising at studying of processes and the phenomena of a labor market is considered.This property allows to consider a problem of a temporary gap between operating impact and result of change of system of a labor market on this influence.

Keywords: Labor market, lap effect, optimizing tasks, economic-mathematical modeling,operating influence, social and economic system

The construction organizations for successful implementation of the project need to carry out the whole complex of actions which structure includes planning, the organization and management of construction processes. It is especially important to be able to plan in modern conditions when degree of uncertainty of the future is very high. In this regard, in construction branch there was a need for program complexes on planning and management of projects. They are required for a choice of an optimum way of implementation of the project with the most effective use of resources.
For development of such program complex authors took house reconstruction in Rostov-on-Don. Introduction of information system of planning can cardinally increase efficiency of implementation of the project. It is offered to reduce planning terms due to saving of time for search of demanded information and on computing operations.

Keywords: information technologies, project, planning, reconstruction, algorithm, economy

Considered the questions connected with estimation of mechanical properties of steel elements of metal construction. The measurements are performed in a non-destructive method on the basis of the analysis of the characteristics of the implementation of the conical indenter in surface materials. This method allows you to get the values of all mechanical characteristics of metal. The measurement of mechanical characteristics can be made to anywhere in the design. At the same time, when large amounts of construction and large volumes of measuring works, you need to evaluate a sufficient number of measurements in a particular place. Proposed and implemented the Bayesian method of consideration of a priori information to reduce the number of dimensions and complexity of the process of receiving mechanical characteristics.

Keywords: nondestructive control, mechanical characteristics, durability, diagnostics, aprioristic information, metal tests.