The article is devoted to the close studying of heat transfer and hardening of the ingot in the secondary cooling zone (further SCZ) in the continuous casting machine (further CCM), and also determining a stress-strain state of the ingot including continuously varying temperature field inside it in order to prevent the process of buckling the ingot by setting rollers in the center of the largest displacements and deformations and as a consequence of reducing the length of the roller section. This aim is achieved through the development of methods of calculation of the stress-strain state of the ingot in a CCM with a help of the temperature object decision, correct selection of the approximation model of the experimental data and the selection of finite element-based on the Lagrangian description of motion of a continuous medium and comparison the calculation results for multiple selected sections.

Keywords: continuous casting machine, ingot, hardening in the secondary cooling zone, rollers, heat-exchange

The article discusses the results of the development of a methodology based on the principles of subject-augmented management for choosing a contractor in construction when placing orders for contract bidding to meet state and municipal needs. The considered methodology is based on determining criteria for evaluating bidders for contract bidding, processing expert information, translating quality indicators into qualimetric units of measurement, and also modeling the preferences of bidders. The principle of subject-oriented management, on which this methodology is based, involves the use of a non-manipulated mechanism. The application of this methodology on the principles of subject-oriented management becomes relevant when the individual with different preferences is involved in setting the minimum initial contract price. The urgency of finding methods for objectively selecting the winners of tenders in construction is due to the established practice of allocating government contracts through an auction mechanism, where the only criterion for determining the winner is to offer a minimum cost of work, which directly affects the quality of work performed and services rendered. The study of the relevance of the investigated problem revealed the fact that to evaluate and account for technical and technological solutions used to select the winner of contract bidding it is necessary to use qualimetric methods based on non-manipulable mechanisms - exclusion of any kind of manipulation of the results of the bidding in their interests. The technique describes the concept of contract bidding. A system of criteria is proposed that is most fully capable of evaluating the participant’s application. The criteria can be divided into three groups: the first group describes the motivation of the participant, the second group evaluates the tender proposal, separately allocated the contract price.

Keywords: contractors, municipal order, subject-oriented management, non-manipulable mechanisms, contract bidding in construction, integrated assessment, integral indicator

The problems of synthesis of a model of dynamic neuron with state memory (DNSM) are considered in the paper. The introduction of a special additional parameter into the model of a neuron, defined as a state parameter, is substantiated. It is indicated that the parameter of the state of the neuron has the ability to vary with time depending on the nature of the information processes that occur in neighboring neurons of the network. This parameter in a certain way accumulates information about the history of the behavior of the neuron in accordance with the entered formal descriptions. The concept of a "strained neuron" is introduced, taking into account the above. This concept characterizes the degree of influence of a given neuron on the neurons surrounding it. On the effects of time-varying parameters of the state of neurons, it is proposed to implement the process of self-evolution of the network directly during its operation. A variant of the analysis of the structure of the neural network, created on the basis of the proposed model DNSM. The topological representation of a neural network in the form of a graph model allows formalizing the interaction of neurons in a network with each other, both in time and in space. For this, the concept of k-space is introduced, which determines the degree of proximity of neurons to each other. The degree of proximity of neurons allows one to formalize, in the form of mathematical relationships, the procedure for the exchange of information between neighboring neurons in a network. Mathematical relationships that formalize these processes are given. A variant of the structure of the hardware design of DNSM, focused on implementation using FPGA technology, is proposed.

Keywords: dynamic neuron with state memory, connectionist model, self-evolutionary mechanism

Predictive assessment of the technical object is based on the determination of the possible values of the controlled parameters in the projected time period and is carried out during the operation of the object. Calculations are usually done in the background and it is important to estimate the minimum sample of parameter values that can be used for prediction. The article shows the possibility of using the Hurst indicator to determine the persistence of the time series of the object parameter and presents a scheme for estimating the minimum sample size, which can be used to reliably predict the parameter change using time series forecasting methods.

Keywords: time series, Hurst exponent, forecast, estimate, trend, stability, persistence, value, parameter, object, data array

Today one of the topical issues is the practical application of the theory of pattern recognition, face recognition, including the definition of a person in the image and its subsequent identification. Such tasks include the extraction of indirect signs of interaction between users of social networks. By identifying the user's face and further searching it in photographs and video files in other profiles, an expansion of the list of basic data available to the analyst is achieved. It is known that the system of computer vision, which is able to recognize faces in a natural and artificial environment under any conditions, has not been implemented to date. One of the obstacles is the variation of the scene - the area where the face is being identified. The article proposes a model of an intelligent information system using bion-spirited methods for preprocessing images in order to expand the range of allowable scene variations.

Keywords: pattern recognition, object identification, photometry, intellectual system, social networks, analysis

A nonlinear boundary value problem on the propagation of surface waves in a layer of viscous incompressible fluid of infinite depth is considered. Equations of motion and boundary conditions are written. The solution of the problem is found by the small parameter method. An expression for the damping decrement of the wave oscillations is obtained. The program code in C++ for the numerical study of the propagation of nonlinear waves on the surface of a viscous liquid is developed.

Keywords: viscous liquid, slabowska fluid, nonlinear surface waves, the damping rate of waves, phase velocity, frequency wave

This study examines the dynamics of the perception of individual segments of the advocacy news. A probabilistic-stochastic approach for simulation is proposed. As the main actor describing the situation, the probability of a positive assessment of the veracity of the new information by a separate subject is taken. For the description of the process of forming the relation to it the discrete-event paradigm is chosen. The change in the level of evaluation occurs under the influence of random perturbations of the individual's opinion, experienced at discrete moments of time. An intuitive recalculation after this perception of the news is modeled based on Bayes ' theory of decision making. Mathematically, this approach fully coincides with the previously used by us in the numerical analysis of the resolution of intrapersonal conflicts. The results revealed at that time were adapted to study the dynamics of the perception of propaganda news by a neutral part of the population. Which is made by the individuals estimating truthfulness of propaganda activity as a whole neutrally, at the level of ½ (on a scale from 0 to +1). It is found that when assessing specific news such neutrality is violated, in the end, the individual believes the news is either completely true or false. But it is already being restored at the level of the ensemble of all news. About half of them are considered by the individual to be true, half – false. The time before the formation of the final perception of a particular news depends on the degree of its importance for the subject, and the minimum is observed at the level of significance slightly below the maximum. The model of taking into account the social environment in the resolution of intrapersonal conflicts has also been adapted for the analysis of the perception of propaganda information. While the assessments of the credibility of the individual stories of neighbors are correlated. Over time, clusters with the same perception are formed in society. Ideally, in the absence of other influences, eventually one opinion is formed in the whole study group. Here again, for some propaganda news, the neutrality of perception is broken, but it is restored at the level of the ensemble of all news. The proposed models can be used to study not only the neutral part of the population, but also groups with any level of assessment of the truthfulness of propaganda in General, both homogeneous and heterogeneous in this parameter. In addition, the proposed approach can serve as a basis for the study of the impact of agents of influence (in the information space) and the development of advocacy strategies.

Keywords: propaganda, perception, in General, separate news, modeling, probabilistic-stochastic approach, discrete-event approximation, Bayesian theory, multi-agent analysis, social environment, clustering

This article analyzes the stress-strain state of exploited reinforced concrete crane beams in order to identify the causes of abnormal damages. Also, the degree of influence of the revealed damages on safety and operational fitness was assessed.

Keywords: crane beam, technical condition, operational availability, defect, durability, damage, inspection, discretization, stress-strain state

The simulation variances of the final volume considerably simplifies the solution of certain problems of reliability. The collection of information for aggregates of large volumes is impractical because of the duration and high cost. Therefore, the analysis and calculation are subjected to a representative sample. To move from sample data to finite volume population parameters, an analytical method for determining the Weibull parameters for the population was used. Analysis of the analytical method for determining the parameters of the three-parameter Weibull distribution for the aggregate confirmed the possibility of using the method of modeling statistical data of strength and life of parts and components of machines. The calculations proved that in practice it is possible to use both the value of the shift parameter and the value of the extreme terms of a number of the population.

Keywords: reliability, analytical method, simulation, General population of finite volume, the sample, the Weibull law, strength, resource, detail, Assembly, machine

The article presents the results of calculations and selection of a set of construction machines for the development of soil in the pit. In the course of the work, a comparative analysis and selection of the most cost-effective option was made. The results showed that the parameters of the selected technology may not coincide with the recommended.

Keywords: set of machines, technical and economic indicators, organizational and technological solution, efficiency, earthworks, soil groups, intensity of work, technological cycle, duration of earthworks, the cost of production of earthworks

The article conducts a study of the stress-strain state of the protective structure, taking into account temperature and radiation effects. Dry protection is a thick-walled cylindrical shell rigidly clamped at the base. The analysis is carried out in axisymmetric formulation. The calculation of the stress-strain state is preceded by the determination of the distribution of physical fields in the thickness of the structure. The stationary temperature field is considered taking into account internal sources of heat release. The diffusion approximation is used to determine the distribution of the neutron fluence. The calculation is performed numerically using the finite element method in the Matlab package. The results are compared with and without induced inhomogeneity. The significant influence of inhomogenity on stresses in the structure is shown. At the same time, taking into account heterogeneity does not lead to a significant change in displacements.

Keywords: thick-walled cylinders, stress-strain state, numerical methods, neutron fluence, temperature field, inhomogeneity, finite element method

In the article, affecting of anthropogenic factors is considered natural environment of municipal territories. The variants of equipping with modern amenities of sanitary-hygienic zones of enterprises offer by planting of greenery.

Keywords: Key words: noise, pollution with gasses, motor transport, green areas, sanitary protection zone, tree-shrub vegetation, species composition

The article is devoted to development of information modeling technologies in Russia. The possibilities of using 3D-models, their advantages and disadvantages are conserned.

Keywords: Information modeling, engineering, building operation, real estate life cycle

The abstract briefly describes modern architectural and planning tools to improve the powerefficiency of industrial buildings. The developments of the Soviet industrial architecture and current European trends are recorded. The features of climate in the South of Russia are considered. The perspective tendencies of increase ofpowerefficiency of industrial buildings are formulated. Examples of the use some of constructive methods and means of improvement of territories for increase of powerefficiency of industrial objects are presented

Keywords: industrial architecture, economic factors, energy efficiency, environmental friendliness, flexible planning solutions, functional mobility, additional engineering systems

The article is devoted to the issue of improving the environmental safety of the construction industry by improving dust collectors of dust removal systems for the aspiration schemes of the construction industry/ It was proposed use additive-integrated dispersive analysis of variance of dust particles emissions throw out into the atmosphere by aspiration systems. The article proposes the improvement of complex analysis of variance using hydrodynamic criteria in output functions. Modified output data and additive-simplex allows getting approach to evaluate characteristics - equivalent sizes and speeds of sedimentation-soiling of dust particles with a higher degree of accuracy of the results. It makes possibility to determine the ranges of size’s and velocities’ changes with real ability. It is possible to obtain more reliable data of sedimentation rates and equivalent particle sizes for the studied dust samples of building materials using the distributions of the hydrodynamics criteria. Analytical approach to determining the density’ distribution of the numerical values of the hydrodynamics criteria in the output function allowed us to clarify the more real values of sedimentation rates and the equivalent particle sizes and the range of their changes both. This way analysis of variance of dispersed dust particles could call additive-complex or simplex approach. The obtained regressions in processing the research results were used in the development of devices for capturing dust of dispersed building materials from emissions. This way could significantly reduced dust leakage out from aspiration collectors of decreasing dust systems while purifying emissions at the building enterprises. This approach is one of the most effective ways to improve the environmental safety of the building industry.

Keywords: Dust, building material, dust collector, cleaning, leakage, analysis of variance, velocity, sedimentation, criterion, emission, atmosphere, dust removal, aspiration