The computation of the trace of the Fisher information matrix in this work is carried out in terms of the sensitivity functions of the output variables. It is essential that the computation of the corresponding sensitivity functions is performed in a feedback loop, which leads to the application of a dynamic programming method that differs from the standard scheme. The difference lies in the need to solve a system of linear algebraic equations in the synthesis of the control sequence. The use of such a control synthesis scheme in the work is justified, and necessary and sufficient conditions for the existence and uniqueness of the solution of the specified system are obtained. The distribution of the energy of identification signals between more and less important parameters of the model is varied by changing the weighting factors. It is proposed to impose an additional constraint on the trace of Fisher's information matrix on the control sequence synthesized on the basis of the principle of deterministic equivalence.

Machine learning is applied in many everyday situations, from image recognition to natural language processing, autonomous vehicles, and product recommendation. In the field of science, machine learning is used for medical diagnostics, new materials development, smart farming, DNA classification, and more. This paper explores machine learning technology. Explains what this technology is and its use in the world today. The article also talks about the types of machine learning and what they are. The work of each type is considered in detail: what types of algorithms they use and in what areas they are used. This all emphasizes the features and uniqueness of each of the types. In addition, the article discusses the advantages and disadvantages of this technology, as well as the importance and prospects.

This article says that quality management is one of the key functions of both corporate and project management, the main means of achieving and maintaining the competitiveness of any enterprise. It is emphasized that product quality management is, in essence, a cross-cutting aspect of the enterprise management system - similar to such as time, costs, personnel management. It is this position that is at the heart of the fundamental principles underlying modern quality management systems. The article also touches upon aspects of the functioning of the quality system - this is the performance of the management and all departments of their functions and tasks in order to ensure the quality of products. This is the content side of the system's activity, that is, what it is intended for. In recent years, in world practice, much attention has been paid to in-house quality control of products, which is called total quality control. The product quality management system differs not only in each state, but also in the company. Its formation depends on the tasks facing the country or company, their specifics and practical experience. In Kazakhstan, attention to quality management is constantly increasing. At the same time, many managers still devote most of their work time to “momentary” problems, rather than planning quality from the very beginning.

The article presents modern research on the development of compositions and technologies of light aggregates based on natural and man-made raw materials, as well as mixtures containing both natural and man-made raw materials. As a natural raw material component, shungite, clays, silica – containing raw materials-diatomite, trepel and flask are used. As man-made raw materials, coal-enrichment waste and coal-containing waste, fly ash, ash slags, oil sludge and paper waste paper are used. Light aggregate is prepared according to roasting, clinker-free and clinker-free technologies. For the production of the aggregate according to the firing technology, the raw materials are mixed after grinding, mixed in certain ratios, moistened, prepared granules and after drying, the granules are fired. Liquid glass is used to produce the aggregate using the clinker-free technology, while Portland cement, slag-Portland cement and gypsum-cement-pozzolan binder can be used as binders using the clinker technology. The bulk density of the developed aggregates is in the range of 100 ... 1100 kg / m3, porosity-50...88%, compressive strength in the cylinder-0.32...3 MPa.

The article presents a broad analysis of the situation with air pollution and the impact of thermal power plants on the environment. The structure of fuel consumption is presented, as well as an analysis of the main sources of electrical and thermal energy in the framework of the study of the problem. The main sources of greenhouse gas generation, which include energy and road transport, are shown. In conclusion, an analysis of the situation when replacing Almaty CHP-1 and CHP-2 with natural gas is given. It is shown that it is most expedient to build thermal power plants running on gas with a modern combined cycle, combined cycle, which will provide electricity production with an efficiency of more than 50% and provide a fuel utilization factor in combined heat and electricity production of 80-85%. The article also discusses the issue of modernization of ATKE LLP, after which large boiler houses could generate electricity based on thermal consumption, despite the fact that they burn natural gas only for the needs of heat supply.

Global shortage of cybersecurity experts is becoming emerging trend in Information Security (IS) domain. Traditional and non-traditional education approaches are not able to supply global demand for cybersecurity talents, and this trend is unlikely to change in the coming years. Companies are experiencing a huge number of cyber-attacks of various scale and vector: phishing, network attacks, malware, denial of service (DoS) and ransomware. The effect of multi vector cyber-attacks could result in tremendous financial and reputational damage for the companies. Information security community is constantly looking for new approaches to combat with ever-growing number of cyber-attacks. In an era of big data and a shortage of cybersecurity talents, machine learning (ML) has all the prerequisites to become one of the most efficient solutions in this field. The purpose of this article is to analyze current issues of IS management system and discuss practical use of ML in several IS processes. The article also discusses current challenges and future developments of ML in cybersecurity.

This work presents the results of studies of the structural-phase state of tantalum coatings obtained by magnetron deposition on substrates of titanium nickelide in the austenite-martensitic state. The temperature of the titanium nickelide substrates during the deposition of the coating did not exceed 100 ° C. The structural-phase state of the tantalum coatings was determined by X-ray diffraction at different stages of formation. It is shown that at the initial stage of deposition, two-phase coatings (α- and β-Ta) are formed. The synthesis of a Ta coating leads to an increase in the interplanar distance of the B2 austenite phase in the crystallographic direction (100). This is caused by the formation of microstresses upon interaction with incident Ta ions. The lattice parameters of the B19 'phase do not change during the deposition of a tantalum coating.

The Republic of Kazakhstan ranks first in the world in the extraction of natural uranium by underground borehole leaching. During drilling and construction of technological wells, drilling mud is formed, which is the main waste product of uranium mining enterprises. The issues of utilization of drilling mud, its secondary processing and possible use in various sectors of the national economy are relevant for the mining and oil-producing industries. A comprehensive study of soil samples and drilling cuttings of several uranium mining enterprises of JSC "NAC "Kazatomprom"was carried out. The results of radiological studies of drilling mud samples allow us to refer them to materials that can be used in road construction. Soil and drill cuttings have a similar component composition, the content of toxic metals in them is very small. Determination of the hazard class of drilling mud by the calculation method was carried out using the data of chemical and mineralogical analysis due to the fact that the main components of drilling mud are presented in its composition in a bound form, in the form of natural minerals. The calculated total hazard index makes it possible to assign the studied samples of drilling mud to hazard class 4 and 5 according to GOST 30774-2001. The results of the toxicological experiment on warm-blooded animals confirm the data of the calculation method. The DL50 parameter was higher than 5000 mg / kg, which refers all samples of soil and drilling mud to hazard class 4 according to GOST 12.1.007-76. A promising method of utilization of drilling cuttings is to use them as secondary raw materials for the manufacture of building materials, soil mixtures, materials for filling roads, which will reduce the volume of natural resources used in construction. We consider it appropriate to conduct further studies of drilling cuttings aimed at finding ways to dispose of them.

This article is dedicated to the identification of perspective areas for the disposal of ash and slag waste from thermal power plants, namely waste generated at the TPP-1 in Pavlodar. The composition of ash and slag waste was considered by methods of X-ray fluorescence and X-ray phase analysis in order to identify the most suitable area for their further use. Based on the data obtained, it was proposed to use waste for the extraction of precious metals, such as aluminum and iron, by alkaline leaching. The paper presents the results of selection of the most optimal conditions (temperature, alkali concentration, duration of the process) leaching of metals. It was found that the best conditions for the extraction of iron is the treatment of ash and slag waste in an alkaline environment of caustic soda with a concentration of 200 g / l at a temperature of 80 °C for 3-4 hours. To increase the degree of aluminum extraction, it is necessary to apply repeated treatment with an alkali solution, consisting in sequential treatment of ash and slag waste with fresh alkali solutions in 3 stages for one hour.

Based on reference thermodynamic data, a four - component titanium - zirconium - aluminum-silicon (Ti-Zr-Al-Si) system is constructed and its mathematical model of the phase structure is created. As a result, it was determined that it consists of 12 elementary tetrahedra. For each of the tetrahedra, analytical equations are defined, with the help of which it is possible to determine the location in the factor space of the general system of compositions of various metal melts with the calculation of their standard phase compositions. The sum of the relative volumes of elementary tetrahedra is equal to one (1.00000), which confirms the correctness of the tetrahedron. Quasi-volumes in the Ti-Zr-Al-Si system are established, which simulate the compositions of the metal products formed during the smelting of various ferrosilicocyrconium alloys during the reduction process . As a result, it turned out that the TsK-20 alloy is modeled by the TiAl3-Al-Zr5Si3-ZrAl3 tetrahedron, and the compositions of the FSTsr-45 alloy are decomposed in the TiAl3-Zr3Al2-TiAl - Zr5Si3 tetrahedron, respectively.