There has been researched the temperature field in the refractory bricks of the furnace. As a result, there has been received a scheme of temperature distribution in the furnace wall in the presence of installed water – cooled caissons.

The article considers the methods of rationalizing the process of heating the refractory materials of aluminum electrolyzers up in relation to thermal stresses arising in the hearth lining. The functional goals of the refractory materials are listed. The operational characteristics of the refractory materials are presented. During thermal influence on a hearth lining, the physical effects called thermal expansion occur. The materials which save their properties under high temperature are known as refractory materials. The thermostability is described in more detail. The scientific test bench was used to investigate ultimate strength. The method of temperature and pressure measurement when conducting the experiments is cited. In order to choose the potlining it is necessary to know the peculiarities of refractory materials and actual industrial loadings as precisely as possible.

The development of extraction techniques of medical plants aims to maximize the bioactive compounds production. Тechnologies in this area of industry have not high enough еfficiency factor. In some cases, it reaches only 40-50 %. Therefore, development of new methods to effectively extract different compounds from plant material and their input into large-scale industry is of great importance. The goal is to determine an effective and suitable technology for extracting bioactive compounds from medical plant. This is a narrative review paper which focuses on different extraction methods of medical plant. To find relevant articles for this narrative review, 73 articles were reviewed. Of these, 14 irrelevant documents were discarded. This review analyses various extraction processes to guide the selection of suitable methods for various types of medical plants and applications. This is done by outlining traditional and modern methods of extraction techniques, exploring the importance of solvents for extraction, and comparing novel and alternative methods of extraction. In conclusion, based on the current knowledge, solvent extraction is the most common method for medical plants extraction. Enzymatic hydrolysis and supercritical extraction are advanced techniques with high yield of compounds. However, more research is needed for some modern extraction methods.

Main problem: recently, much attention has been paid to energy saving in production, especially when it comes to industrial units that burn fuel. There are several ways to maximize the use of the heat released during the combustion process, for example, to reduce the temperature of the flue gases at the outlet of the unit, by maximizing its use, both in the technological process itself and by installing additional heat-receiving units, for example, air heaters or other heaters. Another way to save money is to reduce heat losses through the lining of these high-temperature units. Metallurgical units that consume a large amount of energy and fuel require an analysis of their consumption, and ways to save their consumption based on the results of the analysis. Purpose: this article considers the possibility of replacing the existing inner insulation layer of the second and third sections of a high-temperature unit - a metallurgical furnace, with a new one with better technical and economic indicators. Methods: the possibility of replacing the existing inner insulation layer of the second and third sections of the high-temperature unit with a new one, with the best technical and economic indicators, was considered. The calculation of heat losses by thermal conductivity through the side surfaces and the roof with new insulation was performed, and the economic efficiency of the proposed solution was proved. Results and their significance: replacing the existing inner layer of insulation - refractory concrete PHLOCAST M30 (thermal conductivity coefficient from 1,4 to 1,45) with the proposed CERALIT GUN HK 70070 (thermal conductivity coefficient from 1,03 to 1,12) will reduce heat loss to the environment, and thus to reduce fuel consumption for the furnace.

Main problem: At the present stage of life, workforce plays a special and very important role in the activities and development of any organization. Human resources need to be managed. Management itself is a process of streamlining, regulating a particular activity. Managing an organization means defining the main directions of its development, setting goals for it and contributing to their achievement. Human resources are the face of a company, a component derivative, without which its existence is impossible. Any promising and self-respecting company assigns the formation of its staff to one of the leading directions of its own policy. Currently, in the context of social and economic transformations, the management of the activities of healthcare organizations is changing significantly, and therefore it is necessary to improve personnel management approaches that contribute to improving the quality of services provided and labor productivity. Taking into account the peculiarities of personnel management of a medical institution at the present time, the issue of reforming the personnel policy of healthcare, improving the image of institutions, forming a corporate culture, developing and implementing criteria for the motivational process is acute. Solving these tasks will help managers in the personnel management process. Purpose of this article is to assess the state of human resources of organizations of the sanitary and epidemiological service in the Republic of Kazakhstan and identify the main problems in the personnel management system of the organization using the example of the activities of the State Institution “Committee for Sanitary and Epidemiological Control of the Ministry of Health of the Republic of Kazakhstan”. Methods: The work used general scientific methods of comparative systemic, vertical and horizontal analysis, structural and functional the method, analytical techniques, economic and statistical research methods. Results and their significance: the authors have defined the human resource management system of a healthcare institution, analyzed the current personnel management system using the example of the State Institution “Committee for Sanitary and Epidemiological Control of the Ministry of Health of the Republic of Kazakhstan”. The assessment of the state and movement of labor resources of the Sanitary and Epidemiological Control Committee was carried out. Based on the conducted research, the authors identified the main problems of human resource management of a healthcare institution and developed proposals that can be used as recommendations for further reform and development of the personnel management system in the healthcare sector.