The work contains the approximation of the third boundary value problem of schemes of high order. The approximation of the operator of the convective and diffusive transport difference schem were obtained, which has the fourth-order approximation error. The discrete operator diffusive transport in the absence of the influence of the boundary was considered.The construction of schemes of higher order accuracy approximates the operator diffusive transport in the border nodes in the case of boundary conditions of the third kind with the second order of accuracy was found.

Keywords: Schemes of high order, diffusion, diffusion transfer, discrete operator, approximation, boundary conditions, boundary value problem, finite-difference scheme

The work contains the construction and software implementation of related software systems designed for mathematical modeling of processes occurring in coastal water systems. The space-two-dimensional model of sediment transport in shallow waters allows to forecast the dynamics of bottom topography changes by reason of the movement of water and solid particles, to take into account the porosity of the soil, the critical shear stress at which begins the movement of sediment, turbulent exchange, dynamically changing geometry of the bottom, wind currents and friction on the bottom. The mathematical model of motion of a multicomponent air, takes into account factors such as the transport of pollutants and heat; the effect of vegetation; change in the coefficient of turbulent exchange; water transfer from the liquid to the gaseous state and others.

Keywords: multiprocessor computer system, grid equations, suspended solids, sediment

The calculation of the stress-strain state of the digital carrier panel antenna array mounted on the ship's match. Calculations are performed in the static case, when different types of pitching at a constant angular speed and variable angular speed. It is shown that the effect of roll has a significant influence on the stress-strain state of the panel, and its account at a variable angular velocity is a prerequisite for carrying out these calculations

Keywords: "carrier board, the pitching of the ship, the angular velocity, angular acceleration, stress, strain, statistics "

The relationship between the affective and cognitive components of attitudes in relation to a surrounding cultural landscape is investigated on a concrete example. The functions of distribution of perception level for cultural infrastructure are calculated on the basis of the experimental results obtained in May-June, 2015 by questioning among students of DonSTU. The emotional component was determined by technology of semantic differential. The primary data were processed in the nonlinear model developed within the catastrophe theory. The cognitive component was found by a technique of direct poll with the subsequent factorization by a classical method and allocation of key parameter. The difference in affective and cognitive perception of cultural infrastructure is discovered. At the group level the number of respondents which declared positive and strongly positive cognitive assessment are 10% more than for emotional one. With neutral perception, on the contrary, is 7% more on an affective indicator. In general on group the cognitive assessment is overestimated, the average level of emotional perception of infrastructure is 0,14 and cognitive is 0,27 (on a scale from -1 to +1). At the individual level these indicators among themselves practically don't correlate (Pearson's coefficient is 0,2).The received results say that the standard technique of direct poll at research of a cultural landscape is limited and it should be supplemented with the analysis of emotional perception. Such analysis for the considered audience is provided in work.

Keywords: cultural attitudes, affective component, cognitive component, questioning, semantic differential, nonlinear model, theory of accidents, function of distribution, perception assessment

The expert system for practical use by doctors in hospitals is designed The systems is solve the problem of classification opinions on the gestosis development and degree during pregnancy risk. Multi-factor knowledge base derived based on the results of studies analyzed in the work, and includes a set of genomic and post-genomic signs of pregnancy complications. The main users of the system (doctors, researchers and patients) and their requirements for software implementation of the developed expert system. Structure of expert decision support system in the evaluation of the risk of preeclampsia, comprising components (characterizing developed information systems belonging to the class of expert systems), the functions and subjects were created. The types, feature space feature descriptions and attributes the knowledge base of these patients. The generalized algorithm of the system and the possibility of its further development were given.

Keywords: Expert system, knowledge base, requirements analysis, Statistical classification, feature space, gestosis, preventive diagnostics, a personified medicine

The paper introduce modern information about localization of function of human cerebral cortex from the viewpoint of brain’s structure.

Keywords: brain, cerebral cortex, contex cerebi, neocortex, cytoarchitectonics, functional map of cere-bral cortex, localization of function of cerebral cortex, sensomotor centers

Synthesis of the TiO2 nanoparticles was carried out by sol-gel method. The optimal conditions for stable TiO2 gel obtaining was determined. The resulting samples were studied by IR spectroscopy. Studies have shown the presence of chemically and physically bounded water in TiO2 powders, dried at 125 ° C. Studying of the influence of the pH on the acid-base properties of the surface of the resulting TiO2 powders was performed by indicator method.

Keywords: TiO2 nanoparticles, sol-gel method, acid-base properties, indicator method, infrared spectroscopy, pH of the medium

Ceramic materials based on solid solutions La2-xSrxMO4, where M is Ni, Fe, Co, Cu, x = 0, 2 with layered K2NiF4 structure (structure of Ruddlesden-Popper) have been synthesized and investigated. The correlation of dielectric properties with a normalized bond lengths of the metal-oxygen has been observed. The existence of nickel atoms in the 2+ oxidation state for nickelates has been shown.

Keywords: solid solutions, colossal dielectric constant, resistivity, x-ray diffraction, dielectric spectrum, XANES, low-resistivity semiconductors, the activation energy, the distortion of the coordination polyhedra, oxygen non-stoichiometry

The questions connected with an assessment of mechanical characteristics of steel elements of designs of tribunes of Torpedo stadium in Taganrog are considered. The analysis of the strength characteristics of metal of columns received by a nondestructive method, beams, the top and bottom belts of farms and раскосов is provided. Results of processing of values of mechanical characteristics on compliance most are shown to the general law of distribution of Veybull. For values of a limit of fluidity and strength scale and form parameters, and also shift which defines critical bottom possible value of the mechanical characteristic of theoretical distribution are received. The analysis of accessory of metal of the surveyed elements to the corresponding class of durability of construction steel with the conclusion that all metal of the surveyed elements has a class durabilities not lower than C 255 that meets requirements imposed by the project to durability of metal is given.

Keywords: nondestructive control, mechanical characteristics, durability, diagnostics, class of durability, metal test

The article considers the method of parameters selection of the stress testing parameters of the load testing system, which is used to evaluate the performance of a distributed monitoring system. The proposed method on the use of intelligent technologies, namely the fuzzy logic is based. The novelty of the proposed method in comparison with existing methods is use both fuzzy logic and feedback. Feedback allows getting information about the parameters of server performance of monitoring system and timely adjusting of parameters of the test system, providing the required load on server of monitoring system. A method of fuzzy logic allows responding flexibly to changing the state of the monitoring system, without human intervention, using the information obtained through feedback. To illustrate the proposed method was implemented in an experimental load testing system. Further experimental verification was performed of the implemented load testing system on a simple monitoring system. The final part of the article presents the results of the experiment. The experimental results show that the proposed method allows keeping the required load on the monitoring system server with various changes of states of its work.

Keywords: fuzzy logic, feedback, load testing, monitoring system

This article describes the issues on the basis of scientific research and the data produced in-depth analysis of technical condition of water spending long maintained facilities for further classification of defects and damages, as well as the prediction of their remaining life. Mathematical and software was built on the length of the projected water filtration since the beginning of the construction survey. Program - technical complex in the survey predicts the loss of bearing capacity as the structure as a whole and its constituent elements from the moment of injury. In the future, software and hardware predicted time total loss bearing capacity of the construction, using various regression dependence. Technical possibilities of application systems allow calculation of the geometric characteristics of different defects and damages on the surface of structures, and in some of its elements. Presented Program - technical complex for solving the problem of forecasting residual resource of water conveyance structures can be used to create a database during the operation of these structures over a long period of operation that will extend the life cycle of water conveyance structures with regard to their reliability parameters. The basic provisions on the organization of determination and prediction of residual life long maintained water conveyance structures, identification of defects and damages, assessment of suitability taking into account the reliability of the parameters, for further use water conveyance facilities.

Keywords: monitoring, automation, carrying water facilities, livneotvodyaschie facilities, software and hardware, reinforced concrete, technical condition.

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

Failure of communication equipment and automated control systems by the fire of the State Fire Service of the Ministry of Internal Affairs of the Russian Federation, leads to a significant reduction in staffing it and, as a consequence of this, to the disruption of assigned tasks. Proposed generalized analysis allows to take into account all the factors affecting the recovery process as a single sample and the communication system and create a conceptual model of the recovery process communication equipment repair bodies of technical communications and automated control systems of the State Fire Service of the Ministry of Internal Affairs of the Russian Federation.

Keywords: communication, communication technology and management information systems, technical support communication and control systems, recovery, repair, maintainability.

The article describes the slow flying drones with reference to problems of aerial photography. As an alternative to multicopter proposed aerodynamic design, elliptical flying wing. It has been shown that this scheme allows ensure uniform distribution of lifting force along the wing span, respectively, does not allow on loss of unmanned speed bogged down into a tailspin. The results of mathematical modeling and flight test a prototype of this type of UAV.

Keywords: unmanned aerial vehicle; elliptical wing; control laws; mathematic modeling; drone aircraft

This article discusses the concept of information security, its structure and development stages, shows the diversity and the equivalence of the remedies and discusses existing approaches to the formation of protecting corporate systems on the basis of which it was proposed to address this problem, based on the method of decision theory.

Keywords: information security, information security devices, knapsack problem, points of placement of remedies of information security, the formation of information security, distributed systems, mathematical model