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In progress to assess the impact of chemical treatment of recycled water in the production of mineral wool, its salinity and the degree of clarification found that the most suitable reagent to achieve the objectives is a 25% aqueous ammonia solution. It is shown that the optimum quantity of ammonia to initiate the process of deposition is in the range of 4–6 ml/dm3, lower number gives a noticeable lightening of recycled water and reduction of solids, a larger leads to a re-dissolution of already formed sludge and therefore to reduce the share of bleached water and increase the content of dissolved salts.Installed three stage character of the process of interaction of ammonia and recycled water. It is revealed that the deposition process in the recycling system water – ammonia at the initial stage limits the chemical stage of nucleation (the formation of a crystalline precipitate), followed by reaction at the interface (the formation on the surface of the original germs of continuous product.

The article is aimed at formation of theoretical and methodical foundations for development of a system for management of enterprise in line with the diagnostic and anticipative approaches. It has been determined that the diagnostic approach is based on the process of identification, analysis and assessment of the enterprise’s status (subject to restrictions on access to information resources) to address the problematic moments and weaknesses of enterprise and/or use chances of functioning modalities and strong positions of enterprise to ensure its development and forming a perspective. At the same time, it has been determined that the anticipative approach is directed to an early warning and response to financial crisis, signaling to directors of enterprises on hazards, risks, and additional chances to increase efficiency and effectiveness of financial-economic activity by means of continuous monitoring of changes, arising in the environment of functioning. Prospect for further research will be developing a diagnostic system, taking into consideration the diagnostics in the enterprise’s management system and the theoretical-methodological foundations for development of system for management of enterprise.

In the article to forecast the trends of development of the state’s industry (for example, Ukraine), a method for evaluating the parameters included in the classical Cobb-Douglas formula is developed. On the basis of the computational experiment it was established that if the values of the production function Y are close to the numerical values and the deviation between them does not exceed 3.7 %, then for approximation of Y in the industry for small time periods, it makes no sense to complicate the set of its parameters and coefficients. For forecasting the values of Yi (Yi Î Y) we have evaluated the parameters that are included in the classical Cobb-Douglas formula. To improve the methodology for estimating the coefficients included in the Cobb-Douglas type formula, new variants of the multiplicative and additive quality criteria and for the Ukrainian industry are proposed, based on the analytical data for 2010–2017, the evaluation of the relevant criteria was carried out.

This paper presents results of the use of Big Data approach and neural network for the pipelines diagnosis problem. In this case the pipeline is in the conditions of crack growth of corrosion fatigue and exposed to hydrogen. It is proposed to use graphene protective coatings. The mathematical model for estimating the changes in the effective surface energy of WPL during plastic deformation, electrochemical overstrain, polarization potential and current density of the metal dissolution reaction at the top of the crack on the pipeline surface during its mechanical loading in an aqueous electrolyte solution is given. The dissolution of the metal is considered on the juvenile surface, taking into account the anode and cathode regions based on the approaches of surface physics and electrochemistry. An element of a mathematical model is a quality functional, taking into account information flows and a sensitivity coefficient. Functional quality is used to specify the feedback between the investment project methodology and risk estimates, as well as to optimize the information flows of enterprises and improve the system of protection of metallic underground pipelines that operate under conditions of corrosion fatigue. The purpose of this project is to improve the relevant regulatory and technical documents as well as software.

The basic requirements to the planetary transfers, used in heavy dumpers, lorries, tractors and other machines made in Belarus are formulated. Ways of improvement of quality and perfection of manufacture of planetary transfers are planned.