The influence of grain composition and active mineral addition of microsilicasuspension on properties of dry concrete mix was considered. The selection of the method of production of paving slabs with allowance for technological modes of vibropressing technology was made. The optimum dose of microsilicasuspension, having positive effect on the concrete quality, was defined.

Keywords: grain composition, dry mix, process of hydration, microsilica, paving slabs, heavy concrete, compressive breaking strength, abrasion capacity

In the article the features of application of logistic approaches of the organization of movement of the cable cars, as well as the method of selecting the cable car and the slopes at various characteristics of the operation of the complex. The results of experimental research on the network of cable cars of the mountain resort "Rosa Khutor"are offered. The paper uses the methods of monitoring the movement of passengers on cable cars by means of identification by ski pass and GPS

Keywords: transport mobility, route network, public transport, automated monitoring of passenger traffic, logistics approach, cable car, monitoring of cable car congestion on-line, traffic volume, digital transport management system

The article proposed a method for determining the geometric parameters of surface roughness using the Gwyddion computer program and a Canon Lide 220 flatbed scanner. Using the method, surface roughness samples were investigated. Analysis of the obtained results showed low values ​​of the absolute error of measurement of roughness parameters.

Keywords: Bavykin O.B., Krivozubova E.V.

The paper proposes a mathematical model for evaluating the effectiveness of measures aimed at anticipating competitors in the market. The model is based on the theory of Markov random processes. It allows you to assess the probability of pre-emption in the implementation of commercial projects by one party over the other in a competitive environment. The dependences of probabilities of pre-emption of the parties from time to time. It is shown that these probabilities depend on the average project execution time of each competitor and have a maximum characterizing the most effective lead time. The obtained theoretical dependences allow us to analyze the possible outcomes of competition in market conditions.

Keywords: competition, market relations, advance, efficiency, commercial project, mathematical modeling, conflict of parties, random process, probability of state, time dependence

The electrical properties of composites based on La0.7Sr0.3MnO3 (LSMO) synthesized at the percolation threshold have been studied: LSMO / Li4P2O7, LSMO / Sb2O3, LSMO / GeO2. The activation energies of these compounds have been determined. New ceramic materials with silver interlayers between LSMO manganite crystallites have been synthesized. The current-voltage characteristics for the LSMO / GeO2 series are given. The nonlinearity of the characteristics is most pronounced for compositions near the percolation threshold, 85% LSMO / 15GeO2.

Keywords: lanthanum strontium manganite, composite material, ceramics, one-step synthesis, magnetoresistance, percolation threshold, dielectric constant, barrier layer, tunneling, spin polarization

The relevance of the study of two-dimensional periodic graphene gratings in the terahertz range is described. The structure under study and the results of calculation of scattering and reflection diagrams of multilayer structures are presented.The relevance of the study of two-dimensional periodic graphene gratings in the terahertz range is described. The structure under study and the results of calculation of scattering and reflection diagrams of multilayer structures are presented.

Keywords: Golovacheva E.V., Ivanova I.N., Gribnikova E.I., Makhno V.V.

The paper contains information about a stationary model of coordination of private and public interests in the allocation of resources. The study is conducted in a game setting, taking into account the hierarchy in the relations between the subjects. Take into account the subjects of management on two levels: the supervisor and the agents. Between agents occurs non-antagonistic game in which the Nash equilibrium.When modeling the interaction between the supervisor and agents, the Stackelberg equilibrium is constructed. Algorithms for solving the problem are specified, simulation experiments for a number of characteristic input data are carried out. The analysis of the obtained results is given.

Keywords: supervisor, agent, Nash equilibrium, hierarchical system, Stackelberg equilibrium, subject of management, private interests, public interests

Wide integration of computing resources into physical processes resulted into evaluation of new concepts and evaluation of a concept of cyber-physical sysems in particular. The article reveals an approach of implementation of cyber-physical processes into construction field. Since the process of construction faces the problems, which were traditionally considered as poorly formalized, that leads to an accumulation and transfer of huge amounts of often heterogeneous in its structure and purpose of information. As a result of a detailed analysis of the prerequisites for the creation, structure and functions of cyber-physical systems, the authors establish that the solution of such problems is engaged in cyber-physical systems. The importance of the use of cyber-physical systems in the construction industry is due to its significant role in the economy of any country. The authors identify a number of areas of application of cyber-physical systems in construction, such as monitoring and control of various parameters and systems, logistics and many others. Further studies of the authors need the development of specific algorithms for the implementation of cyber-physical systems in solving these problems.

Keywords: construction, cybernetics, cyber-physical system, cybernetics of construction systems, internet of things, internet of services, internet of people, united information space, construction system, synergy of cyber space and real world

The problem of negative impacts of various nature on the environment from the functioning of public facilities is currently particularly relevant. A special place among such objects is occuped by shopping and entertainment complexes representing a unique symbiosis of various zones. This makes them objects an extensive list of negative factors affecting the environment. At the first stage of the research to solve this problem we carried out a study of the existing scientific approaches to the assessment of the state of the environment and the selection of the scientific basis for subsequent research. The results obtained at the completed stage of the research can be used as the basis for improving the existing scientific base in order to minimize the shortcomings of the existing approaches.

Keywords: environmental safety, urban areas, urban environment, renovation of industrial areas, shopping and entertainment complexes, environmental impact, socio-environmental and economic assessment

The article is devoted to the increasing role of new operational methods of Express diagnosis of diesel engines equipped with modern fuel equipment with electronic control, which allow non-destructive testing of technical condition. The method of rapid diagnosis of diesel engines of automotive equipment equipped with an electronic fuel system. Thus, the developed method of rapid diagnosis using a multi-cycle auto scan and diagnostic kit "Tester CR" allows to determine the technical condition of all elements of the power system "Common Rail" for any diesel engine, where such a system is provided, without dismantling the fuel pump and EGF.

Keywords: Express diagnosis, technical diagnostics, fault, diesel, electronic control unit, fuel equipment, fuel pump, electro-hydraulic nozzle

The article presents information about the training program "Use of information technologies in engineering, scientific, administrative and management activities", developed within the framework of the project of the "Engineering open public forum of scientific and technological activities, social and technological entrepreneurship "rozmys", which is carried out using the grant of the President of the Russian Federation for the development of civil society, provided by the presidential grants Fund. The program is intended for a wide range of engineers and specialists of industrial enterprises, scientists, research engineers, University professors, specialists in the field of administrative and management activities. In it, participants are invited to master a number of professional competencies in the field of organizational management using computer modeling. Forms of training are distance video lectures and practical classes. For each topic, an intermediate test is carried out, and their results are put up a final assessment. Participants who have successfully completed the training receive a certificate confirming the passage of 16 hour refresher course on our program.

Keywords: distance education, advanced training, organizational management, computer modeling, computer simulators

The main disadvantages of the methods of diagnosing the cylinder-piston group used at present are indicated in the article. Mathematical dependencies and the technique of technical diagnosing of a cylinder-piston group of diesel engines with a cold starting cranking of a cranked shaft developed on their basis are offered.

Keywords: engine, cylinder-piston group, compression,diagnosis, cold idle cranking of the crankshaft

The article is devoted to the study of the thyristor regulator of the booster voltage harmonic composition in the mode of longitudinal-transverse regulation. The results of the harmonic analysis of thyristor regulator output voltage , obtained using simulation in the Simulink package, are presented.

Keywords: longitudinal-transverse regulation, thyristor regulator, regulating characteristics, modeling, harmonic analysis, Matlab Simulink

Traditional methods of assessing the effectiveness of investment and construction projects do not take into account the possibility of changing the conditions of construction, the intensity of development of capital investments, depending on the prevailing conditions. This leads to the need to develop new methodological approaches to make rational decisions on the allocation of investments in the implementation of construction production. The article proposes to use the model of option pricing for a phased assessment of the effectiveness of the investment and construction project, depending on the changing factors of the internal and external environment.

Keywords: investment and construction project, capital investments, construction duration, real option, efficiency, probability, financing intensity, investment activity, organizational and technological solutions, organizational and economic decisions

The article presents the developed cognitive model of tourism potential assessment, which allows to determine the prospects of development within the specific territory of the tourism and recreation cluster. The article describes the approach to the development of an integral indicator of tourism potential assessment, which should allow to determine the prospects of development within a specific territory of the tourism and recreational cluster. As part of the construction of an integral indicator, an algorithm for developing a system of indicators for assessing the tourist potential of the territory, based on the cognitive structuring of knowledge about the object, was proposed. In order to determine the functionally significant links between the system "Tourist potential of the territory" and the external environment, the study analyzed the connectivity of the structure, based on the study of simplicial complexes. As a result, a ranked list of factors of the "Tourist potential of the territory" system was obtained and the weight for each of them was determined, which allowed to form an integral indicator of the tourism potential assessment

Keywords: tourism and recreation cluster, cluster approach, tourism potential, cognitive research methodology, tourism potential assessment