Purpose. The main purpose of the research is to substantiate the methodological approach of defuzzification and to define its peculiarities in the process of estimating the value of agricultural lands. Methodology / approach. The research purpose included the use of a set of appropriate methods. In particular, the fuzzy logic techniques formed the basis of the research. The system approach was used in order to determine the role of land resources in the enterprise potential and the corresponding spheres of their management. The analysis and synthesis methods were used in the process of definition of impact factors of land resources value. The cartographic method was used for the needs of graphical display of humus content in the land plots of the analyzed enterprise. The generalization method was used in the process of forming conclusions. Results. The article defines the peculiarities of defuzzification in the process of estimating the value of agricultural lands. The results provided the methodological basis for considering the qualitative metrics in the process of estimation as well as for granting the numerical interpretation for linguistic variables. The corresponding methodology was overviewed at the example of land plot size. The quantitative reference limits for “small”, “medium” and “large” land plots were defined. Research results made it possible to form the sequence of stages, which are to be undertaken, in order to provide numerical values for qualitative characteristics of agricultural lands. A decision tree was built for the needs of formation of management decisions. According to the data of researched enterprise, the dependence of the value of agricultural lands (for the needs of management accounting) on the size of the land plot and the humus content was determined. Originality / scientific novelty. The article improves the methodological approach to determining the value of agricultural lands as of an element of enterprise potential based on the use of fuzzy logic techniques, which, in contrast to existing approaches, allows taking into account both quantitative and qualitative factors in the process of estimating the value of land resources for the needs of their management. Applying the respective approach increases the level of accuracy, relevance, and adequacy to market realities of the results of estimating the value of agricultural lands for the needs of their management. Practical value / implications. The results of the research provided an opportunity to improve the quality and efficiency of the process of estimating the value of agricultural lands. The corresponding process is characterized by a high level of complexity and uncertainty due to the presence of a significant number of qualitative factors influencing the value of the land resources. The approach considered in the article makes it possible to take into account the influence of relevant qualitative factors by giving them numerical certainty through the use of fuzzy logic techniques. The proposed approach will provide an opportunity to increase the accuracy and relevance of estimating the value of land resources as of an element of enterprise potential for the making of corresponding managerial decisions. The proposed methodological approach was implemented with the use of data of agricultural enterprise, which made it possible to take into account linguistic variables (land plot size and chemical properties of the soil) when forming the managerial decisions about land plots. The decision tree was also formed, which serves as a means of supporting management decisions in the process of forming the value of agricultural lands.

Purpose. To analyze the current state of innovation and environmental projects, to develop management strategies and algorithms for project environmental and economic management in subsoil use, to propose a mathematical model of the system of perception and support of solutions for effective environmental and economic management. Methodology. Different methods of cognition were used for scientific research both general and special. Analytical study on the state and realities of innovation in Ukraine in general and in particular in the mining industry, identification of trends in world practice were conducted based on using the methods of content analysis, quantitative and qualitative comparison. Methods of scientific abstraction and systematization were used to develop strategies and basic algorithm of project environmental and economic management in subsoil use. Mathematical methods were used to develop a mathematical model and coordinate it with the developed algorithm of project environmental and economic management for subsequent use in the system of perception and support of decisions. Findings. A systematic approach to the definition of management strategies and an algorithm of project environmental and economic management for the implementation of effective economic and environmental management of mining enterprises is proposed. A mathematical model designed for use in the system of perception and support of decisions for effective environmental and economic management has been developed. An analytical study on the state of innovation in Ukraine in general and in particular in the extractive industry has been conducted. This provided an opportunity to identify trends in the dynamics of change regarding the introduction of innovations and identify the causes of existing trends. Originality. The study identified threatening trends in the practice of introducing innovation. To solve production and scientific problems in the presence of significant challenges, new tools for finding optimal solutions in the environmental and economic management of subsoil use were proposed. Using a systematic approach, a mechanism for selecting strategies, an algorithm of project environmental and economic management and an original mathematical model have been proposed. Practical value. The results of the study can be used both to create new tools for information support of environmental and economic management, and by scientists and practitioners to develop effective solutions for the management and implementation of innovative projects in subsoil use.

Sunflower is a strategic crop in the agriculture of Ukraine as it is important for food and energy production. Recently the processing of secondary products, solving the issues of waste disposal and improving the environment have been paid much attention. This is an example of a cyclic economy, as during the production of oil from sunflowers, their husk can be used for energy production. The ash obtained by burning husk is a valuable complex mineral fertilizer and can be further applied as ecological fertilizer. The aim of this article is to assess the energy and investment potential for sunflowers as an internal reserve for increasing production efficiency and reducing carbon dioxide emissions. In particular, the equivalents of energy substitution of sunflower husks for energy costs at fat-and-oil enterprises, the reduction of carbon dioxide emissions are estimated. A generalized scheme for the production of electricity from sunflower husks is considered. In particular, the use of ash from sunflower husks as a fertilizer is described. The research has shown that the sunflower husks available in Ukraine can be used more efficiently to produce electricity. Therefore policy recommendations were developed based on a study conducted.

Сучасний світ неможливий без використання полімерних матеріалів. Одним з них є нейлон що дуже широко увійшов до системи міжнародного товарообороту. Однією з складових виробництва нейлону є виробництво циклогексанолу гідруванням фенолу під тиском. Тому дослідження цього процесу є надзвичайно актуальним. Розвиток сучасних систем неможливий без розвитку сучасних цифрових технологій. Для їх впровадження необхідно проводити велику кількість дослідів на обладнанні, що витрачає багато промислових і людських ресурсів. Альтернативним рішенням є застосування аналітичних математичних моделей, що можуть не тільки зекономити матеріальні втрати, а й прискорити темпи дослідження оскільки одночасно можна здійснювати стільки досліджень скільки дозволяють обчислювальні властивості апаратури. Побудова моделі що може продемонструвати як близькість поводження до реального об'єкту так і її відносна простота для відтворення, програмування та застосування -надзвичайно складна інженерна задача. Контактний апарат є основним апаратом технологічного виробництва, відповідно до цього було створено динамічну аналітичну модель контактного апарату. Дана модель може застосовуватись як для синтезу систем так і для візуалізації роботи обладнання або ж для аналізу надійності обладнання чи ліній зв'язку. У подальших дослідженнях планується розробка багатопараметричної системи керування контактним апаратом.

The topic of the article is current. Enterprises of the agricultural sector need to expand the range of products and reorient sales markets, develop new types of production in order to increase efficiency. The purpose of the study is to explore the practical possibilities of developing the diversification of the activities of agricul-tural enterprises, to assess the real prospects for stimulating their activities and in-creasing the overall level of well-being and organizing the functioning of modern agricultural enterprises. The methodological approach is based on a combination of methods of system analysis of the foundations for the implementation of the diversification of agricultural enterprises with an analytical study of the prospects for the development of agricultural production in modern economic conditions to achieve the sustainability of the industry. The results of the study indicate a plural-ity of factors influencing the development of the diversification of agricultural en-terprises, depending on the nature of their activities and the type of marketable products they produce, which is determined by the specifics of the market and its activity at a given time. intervals. Further research in this area will help increase the overall economic potential of the country through the sustainable development of the agricultural sector.