"The article presents a new method for preparing fine-grained concrete mixtures. The mixture contains Portland cement, silica sand, disperse mineral micro stuff agent and additive superplasticizer. How micro stuff agent used opal - carbonate- kristabolitovyh kremnizemistyh flasks. As a plasticizer was injected superplasticizer POLYPLAST SP-1. New method of preparing fine-grained concrete mix is enclosed in a change of the order of mixing the components and homogenizing. The concrete mixture should be mixed in two stages. The first stage was stirred cement, micro stuff agent, a portion quartz sand and a portion of the mixing water. In the second stage added the rest of the sand, water and superplasticizer. Then finally all the components are stirred until a homogeneous mixture. This method provides reduction of cement consumption by 15% and the superplasticizer by 25%. The proposed method is protected by patent for the invention № 2535321. "

Keywords: fine-grained concrete. disperse mineral micro stuff agent. additive superplasticizer, the method of preparation of the mixture

We investigated the creep of concrete arches based on the following theories: the theory of linear creep by Harutyunyan-Maslov, kinetic theory, the theory of flow, theory of aging, and nonlinear theory of Y. Gurieva. We considered viscoelastic model of the concrete, ie total strain was represented as the sum of elastic strain and creep strain. Solution of the problem was carried out by finite element method. We considered the arch rigidly clamped at the ends and loaded with a uniformly distributed load. Graphs of growth of deflection and stress distribution in the reinforcement and concrete are represented. We obtained the substantial redistribution of stress between the reinforcement and the concrete during creep: in reinforcement stresses increased and in concrete stresses decreased. The strongest redistribution occurs on the theory Y. Gureva.

Keywords: reinforced concrete arch, creep theory of heredity, aging theory, the theory of flow, kinetic theory, finite element method, stress-strain state

The article describes the features of the design of control systems based on renewable and alternative energy sources. These are managed by a fuzzy logic element specially formed the basis of the rules. A new approach to improve the energy efficiency of autonomous systems by changing the management structure.

Keywords: Renewable energy sources, design, evaluation, planning, energy efficiency, monitoring, forecasting, development prospects

A proposed approach to monitoring technological processes of transport of gas, in particular examines the main input and output parameters of gas pumping units, transmission system, affecting the quality indicators of the transported product (natural gas).

Keywords: Natural gas compressor station gas compressor unit, elements, input parameter, output parameter, supercharger

In this paper, we consider the problem of development of equivalent circuit of non-linear element with the current-voltage characteristic controlled either voltage or current, which can be modeled without any changes of scheme in accordance with design requirements. For solving the problem we use an analog-digital-analog element. The current-voltage characteristic of this element is determined by the program of the digital device work. To approximate the characteristics of non-linear elements we apply polynomials of varying degrees - segments of the Taylor series, Maclaurin, Lagrange, et al. In our opinion, the solution of such a problem is relevant.

Keywords: Synthesis schemes, non-linear circuits, equivalent transformations, analog-digital-analog element, non-linear resistance, controllable voltage source, Taylor series, Maclaurin, Lagrange polynomials

The morphology of the modified Portland cement hydration products was studied transmission electron microscopy. The combined effect of polyvinyl alcohol (PVA) and sucrose on the morphology of hydrosilicates nanoparticles has a synergistic character. he presence of PVA enhances the effect of sucrose. The effect of synergism must be considered in the preparation of multicomponent modifier compositions including PVA

Keywords: "modified cement stone, transmission electron microscopy, the morphology of nanoparticles of hydrosilicates, sucrose, PVA, synergistic effect. "

In this article the social health of the student youth as a social phenomenon is considered in the context of the theory of structural marginality. The author describes and explains the condition of the marginalized status of the student youth of the South of Russia. Social health of the student youth of the South of Russia is a reflection of the degree of her marginal position in society.

Keywords: "Social health, Russian student youth, structural marginality, status, social value, satisfaction with life, the South of Russia. "

Receiving adequate mathematical model requires studying of streams of inquiries into the information system which are described as random variables. The purpose of the analysis is definition of density function of distribution of random variables - time intervals between inquiries of users. The offered method contains stages at which check of independence and similarity of distribution of random variables is carried out, stationarities of a stream and the law of distribution of intervals of time between events is defined. For check of independence and similarity of distribution of random variables the criterias based on selective coefficients of correlation and the criteria which are based on the spectral density of intervals are used. For the analysis of stationarity of a stream of inquiries the standard methods of the smallest square regression and methods based on the analysis of special mathematical models are used. For example, Poisson's stream which parameter changes under some law is supposed. Sequences of the events displaced by casual influences are presented as the events happening according to the schedule with delays in the form of the independent and equally distributed random variables. For comparison of intensity of streams of inquiries from various users of information system the criterion based on the relation of function of maximum similarity and an index of dispersion is used. The offered technique is focused on using of the modern computer programs, for example, MatLab, Statistika.

Keywords: Modeling, inquiry, distribution, random variable, flow of events, intensity, statistical analysis, criterion, stationarity of the Poisson process, the level of significance

In this article the social health of the student youth as a social phenomenon is considered in the context of the theory of structural marginality. The author describes and explains the condition of the marginalized status of the student youth of the South of Russia. Social health of the student youth of the South of Russia is a reflection of the degree of her marginal position in society.

Keywords: Social health, Russian student youth, structural marginality, status, social value, satisfaction with life, the South of Russia

It is shown that one of the most important elements influencing the nature of development in the region is socio-ethno-cultural landscape. The study of its characteristics suggests a wide use of methods of social simulation. The purpose of modeling is to estimate the required parameters in conditions of uncertainty, both at the planning stage and during the current administration. Theoretical solutions to this challenge are based on the use of the principle of duality, when the production and analysis of missing information about a managed object, in our case about socio-ethno-cultural landscape, the system is in the process of governance. The duality of the models appears in their dual role as research (for monitoring characteristics of socio-ethno-cultural landscape and, at the same time as the reference models for the management of development in the region. Need of approbation and problem integration of methods of the system analysis, social diagnostics and social and mathematical modeling which will make new scientific methodology of research is shown. To solve the problem of this level is proposed for effective convergence of methodological knowledge in the use of total potential informational, cognitive, and socio-humanitarian technologies.

Keywords: dsimulation, dual simulation, socio-ethno-cultural landscape, managing the development of the region

In this paper, the technology of process simulation shooting remote sensing the Earth's surface in the optical spectrum of the radiation on the software and hardware complex. With his help, describe and forecast the qualitative characteristics of shooting in the simulation with high resolution linear assessment on the ground.

Keywords: remote sensing of the Earth's surface, software and hardware, virtual ground, the speed of movement of the image, panchromatic imagery, multispectral imagery, linear ground resolution

In this article methods and tools for simulation of systems of remote sounding of the Earth's surface from space in the optical range of the radiation spectrum to optimize its structure and functional properties. The structure of complex information-measuring system of remote sensing to explore the experimental field through very difficult and very expensive in connection with the combination of various physical and technological processes occurring in it. The exit lies in the total use of natural and mathematical modeling with the use of modern IT-technologies, as the establishment phase and during the operational phase, with the aim of improving methods and design tools, as well as better control of equipment settings for advanced space systems (the free spectral range of physical intensity, linear resolution of the terrain and the performance of the system itself).

Keywords: remote sensing of the Earth's surface, space system, the system receiving and converting the information lens, an optical reception system, the underlying surface of the Earth, remote sensing, linear ground resolution

The article discusses problems of hope and the relation to life of representatives of technical specialties. Approaches to studying of hope as sociocultural and social-psychological phenomenon are briefly described. It is noted that the hope is the metavalue of human life. Authors emphasize that the fulfillment of vital events of any modality, both positive, and negative, leads to change of expressiveness of hope. In article on the basis of empirical data features of hope and the relation of experts of a technical profile to various stages of the life are analyzed.

Keywords: hope, spheres of hope, life satisfaction, relation to life, life events

The article discusses the optimization of transport costs and storage costs of wood biomass using mathematical modeling methods. The considered mathematical models allow to optimize transport costs by building the most efficient routes closed.

Keywords: transport timber, storage timber biomass, mathematical models, optimization

This paper investigates the possibility of finding normative solutions in the process of mathematical modeling of systems of a heat supply (STS). Theorems are formulated and conditions for the reachability of the stationary and regulatory regimes of Autonomous and centralized heat supply systems. Formulated search order normative solutions STS.

Keywords: stationary regime, regulatory regime, system of linear ordinary differential equations, controlling the heat supply, equivalenting of systems of a heat supply, control of the source of thermal energy