This article is devoted to description of structure of methodology of modelling of hierarchical problem-directed systems on the example of social and economic systems. In the basis of methodology the principle of a combination of the formalized methods of modelling and expert procedures is put. Modelling of hierarchical system is offered to be spent by means of multilayered fuzzy cognitive maps. Filling of the block of logical-mathematical models in structure of process of decision-making is described in detail. The offered methodology provides the development and choice of well-founded administrative decisions.

Keywords: Problem-directed system, decision making, fuzzy cognitive model, methodology

An original mathematical model describing different activities of actors in the vertical marketing system is presented. They are a provider, a agent, a trading enterprise are presented as a controlling subjects. The model is based on the game-theoretical and hierarchical approach. An equilibrium of Germeyer G1 game in terms of sustainable development is established. The method of impulsion is used as a method of hierarchical control to solve this model. The main system operation laws based on numerical experiments are presented.

Keywords: game theory, hierarchical, three-level control system, method of impulsion

The article deals with the design of experiments for dispersed particles capturing in elektrocyclone. The autors gives planning matrix calculation, the regression equation based on the aerosol velocity and the initial concentration of the aerosol and plot of function.

Keywords: gas cleaning; cyclone; elektrocyclon; fly ash

The author of the article identified the cadastral value of land horticultural non-profit organizations of Leningrad region, using the method of geostatistics. Determined by the maximum distance between objects evaluation. Point at a distance lag more than the maximum distance, not spatially correlated. The construction of the cadastral value of the surface, using deterministic methods and methods of geostatistics is illustrated.

Keywords: cadastral value, geostatistics, log, correlation, regression

To study complex sonar systems, the method of decomposition was suggested. The peculiarities of the method applied to the sonar systems were considered. A four-level hierarchy of decomposition subsystems is proposed. A scheme of the first level of semantic decomposition was presented. Controlled modules allowed to build adaptive systems were described.

Keywords: decomposition, hydro speaker systems, hierarchy of subsystems

  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: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The article presents the results of experimental research of the re-entrainment reduction in the electrocyclone. The authors shows an increase in the collection efficiency of ash up to 99.5% and reduction of entrainment in 4 times when profiled elements was install  on collection electrode surface

Keywords: gas dust cleaning, electrocyclone, re-entrainment, collection efficiency, ash from thermal power plants

In the article the urgency of increasing the efficiency of the electric oil switch in rural power grids. Revealed the possibility of using as an actuator for oil circuit breakers cylindrical linear induction motor. In mathematical form describes the basics of electric motors of this type. Numerical results that confirm the economic viability of the application presented in this paper findings.
Keywords: Cylindrical linear induction motor, switch oil, electric, boost efficiency.  

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In article results of experiences on studying of aerodynamics of a polydisperse suspension of conversion lime carbonate are resulted. The equations for calculation of speeds and concentration of lime carbonate on length of a tube-dryer are received. The obtained data can be used at designing of industrial dryers.

Keywords: Conversion lime carbonate, drying, tube-dryer, aerodynamics.