A comparison of the efficiency of the open cell foam (OCF) models is carried out. Geometrical models are constructed by the methods of simple cubic, body-centered cubic, and face-centered cubic. The parameter of the material efficiency is defined as the composition of the material surface area and the gas residence time in the porous media. The analytical evaluation shows different values of effective porosity for different construction models of the material. In this case, for all considered models, the effective porosity is in the range of 0.741-0.821.

The main challenges for industrial companies today are to improve the competitiveness of their products and to adapt and respond quickly to changes in the external environment. Ensuring the effective functioning of an industrial enterprise is largely determined by its procurement activities, including the reliability and consistency of the procurement process. Relevance of the topic is conditioned by the fact that procurement is one of the main components in increasing of competitiveness and efficiency of the enterprise, as the major part of costs in the cost price of the finished products is concentrated exactly in procurement. Reducing costs in procurement is one of the ways to improve the efficiency of the enterprise. This advantage can be achieved through the introduction of modern information technologies, namely automation of the process of selecting suppliers on an electronic trading platform. For this purpose, an information system for selecting suppliers on the electronic trading platform has been developed, which enables a more transparent, fast, profitable and less costly selection of the cheapest and most suitable goods for the operation of energy supplying enterprises. Procurement activities are aimed at ensuring that the energy-supplying undertaking receives the right quantity and quality of raw materials, materials, goods and services at the right time, in the right place, from a reliable and trustworthy supplier with good service and at a favourable price. Automating the supplier selection process on an electronic platform is essential in today's market environment.

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The digitalization of the agro-industrial complex is a global process, during which the traditional way of agricultural production is replaced by a new one. Information resources are being formed, the collection, synthesis and adaptation of databases, applied software products and recommendations for improving the efficiency of agricultural production are taking place. The use of digital transformation technologies in agriculture is relevant and is becoming part of a competitive business. The article describes the main trends in digital transformation in agriculture. The main trends in the use of intelligent innovations are precision farming technologies, cloud services of agricultural enterprise management, monitoring and accounting systems. The tasks and directions of digitalization of agricultural production have been defined. The research subject: relations, processes and mechanisms of digitization of agrarian sector of economy. Methods of research: analysis, synthesis, and generalization. Objective of the research: analysis of the current state of agricultural digitalization, identification of defining directions in the process of digital transformation and prospects of new technologies application in agriculture.