The article considers the relevance and applied aspects of the use of chatbots. The structural and functional system of the chatbot is analyzed. A comparative description of the platforms for creating chatbots has been made. The functional blocks are based on the example of the Telegram social network, a prototype of the system. As part of the chatbot development, the necessary and sufficient condition for working with text is described - the use of various text analysis methods as an input element for interacting with the bot and its training. The article discusses a number of solutions used for text analysis and creation of text data analysis models: lemmatization methods, text vectorization, various machine learning models. The article focuses on the consideration of the methodology of text processing in different formats and using different technologies, which ensures the scalability and versatility of the proposed technology and the overall effectiveness of the future work of the chatbot.The article will be of interest to programmers, text analysts and anyone interested in working with text and creating systems for working with text information. A chatbot has been created in the Telegram messenger in the Python programming language that automates the work of a customer service specialist.

This literature review examines the topic of microarc oxidation of calcium phosphate coatings, which has received considerable attention in recent years due to its potential application in biomedical and engineering fields. The advantages of the microarc oxidation method for obtaining protective coatings are described. The main attention is paid to the formation of coatings under various modes of the microarc oxidation process and with the help of electrolytes containing suspended powders of various elements and concentrations. The review examines various aspects of the technology, including the underlying principles, the types of coatings that can be obtained, and the methods used to determine the characteristics. In addition, the review examines the potential applications of microarc oxidation in calcium phosphate coatings in various fields, such as biomedical implants, aerospace components and tissue engineering. It discusses the advantages of coatings, such as improved osseointegration, corrosion resistance and wear protection, as well as the potential for the inclusion of bioactive molecules in coatings to further improve their performance. Overall, the review concluded that calcium phosphate coatings have great potential for various applications, but further research is needed to fully understand the potential of this innovative technology and optimize its performance for specific applications.

The scientific article was published as part of the implementation of the scientific project of grant funding for 2022-2024 IRN № АР148039/0222 «Scientific and technical substantiation of the parameters and development of a wind power plant for the electric power supply of the objects of the Armed Forces, other troops and military formations of the Republic of Kazakhstan» (the study is funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan). The article presents the results of the development of a mobile wind power plant for the energy supply of troops. In the Armed Forces of Kazakhstan, there is a need to create and implement technical devices that convert wind energy into electrical energy and have no analogues. As a result of the research, a mobile wind power plant was developed, the main element of which is a pair of identical vertically arranged curved blades. The developed design can be used in any regions of Kazakhstan. The wind plant is not tied to the weather characteristics of the area, it is able to operate in low light and low winds. It can be used to ensure a guaranteed minimum power supply to military facilities in areas of centralized power supply experiencing a shortage of energy, to prevent damage from emergency and restrictive shutdowns. In addition, to provide  electricity to both technological military consumers: communication equipment, radar installations, electric drives of combat systems, lighting installations, and technical military consumers: hospitals, military camps, training centers and training grounds, military facilities support units and units located in shelter, tent cities, etc.

This scientific article discusses thermal phenomena that occur during the cutting process, examples of measuring the temperature of the cutting process. 4 methods of measuring the cutting temperature were proposed and the most suitable method was determined. Method 1- determine the average temperature that will be in the cutter. Method 2-artificial thermocouple method. Method 3 is a method of experimentally obtaining the temperature distribution in certain areas of the cutter. Method 4 is a method of obtaining analog or experimental data using calculations. These methods were fully reviewed, advantages were compared with disadvantages, and the most optimal method was chosen. In addition, the influence of the tool on the cutting process was noted. For example, a decrease in the proportion of heat entering the tool does not mean a decrease in temperature on the contact pads of the tool and on the cutting wedge itself. On the contrary, as the cutting speed increases, the temperature increases significantly. The influence of the material on the accuracy of the cutting process was also noted. As an example, the material of 40X steel was taken. Taking into account its thermal conductivity, the temperature deformation that occurs during the cutting process was revealed. That is, the higher the thermal conductivity of the processed material, the more heat is transferred to the workpiece. In addition, this article also talked about the impact of the intensity of tool wear.

The main characteristics of the control system are the stability and quality of regulation. A stable system always returns to the equilibrium position after the external perturbation ceases to act. An unstable system goes into overdrive after the slightest push.

A self-balancing robot has many different sensors. To maintain balance, a rotational motion sensor and an angular velocity sensor will be used. The speed of the motors can be controlled by changing the duty cycle of the pulse-width modulation. The robot model takes a voltage value as input and outputs the state of the system. At the output of the function, the value from the encoders and the gyroscope is given. The robot will stand only if a controller is developed that makes the whole system stable. The controller must ensure the stability of the robot. Since the position of the robot is unstable, in order to maintain balance, the movement of the robot must be in the same direction as the angle of the body. In modern control theory, there are many methods for stabilizing an unstable system.

This paper presents a universal approach to constructing the Lyapunov vector function, based on the geometric interpretation of the theorem on the asymptotic stability of the direct Lyapunov method and the concepts of stability. This approach allows us to represent the Lyapunov function as a potential function, and the control system as gradient systems from catastrophe theory.

This article presents the development of an information technology solution for personality prediction based on resume analysis for HR companies. The purpose of this study is to investigate the feasibility of using machine learning techniques to analyze resumes and predict personality traits of candidates for recruitment purposes. The methodology involved collecting a large dataset of resumes and using natural language processing techniques to extract relevant features and train a deep learning model. The results show that the developed solution achieves high accuracy in predicting personality traits based on resume analysis. This technology has the potential to improve the efficiency and effectiveness of recruitment processes, as well as reduce unconscious bias in hiring decisions. HR companies can benefit from this technology by streamlining their recruitment processes, reducing costs, and increasing the quality of their hiring decisions. Additionally, the information technology solution could provide HR companies with valuable insights into candidate profiles, enabling them to make more informed decisions and identify individuals who align with their organizational culture and values. By leveraging this technology, HR companies can enhance their overall recruitment strategy and contribute to a more efficient and fair hiring process.

This article discusses the encapsulation of biologically active additives (BAA) and probiotics by spraying method. Today, a large number of BAA are registered in the country, the issue of rational classification of BAA is relevant. In the production of BAA, the use of plants, fungi and BAA that pose a danger to human life and health is not allowed. Currently, the importance of probiotics for enhancing and maintaining human immunity is emphasized.

There are many technologies for encapsulating dietary supplements and probiotics: extrusion, spray drying, spray freezing, addition to the matrix, gel encapsulation, encapsulation in a fluidized bed. Based on the literature review, alginate polymer encapsulation technologies are considered.

Sodium alginate was selected as the materials for the experiments. A solution of sodium alginate has been prepared. Capsules obtained from 0.5% sodium alginate are soft, with an inhomogeneous surface, not spherical in shape, which is due to the low viscosity of sodium alginate, the average size was 2,0×10^-3м.

In an experiment with a concentration of a solution of 1% sodium alginate, it was not possible to obtain capsules by spraying due to the high viscosity. The capsules were obtained by the drip method, had a rounded shape, dense structure, the average size was 3,2×10^-3м.

In this article, we will consider a centrifuge for separating fat from flakes for feed flour for animal husbandry. The raw materials necessary for the production of technical fat and dry feed are collected in all workshops and departments of the meat processing plant. Raw materials are divided into fat and fat-free. It can be soft and bony. The collection of raw materials can be combined with sorting. Heat treatment of raw materials is carried out by dry and wet (wet) methods. If the dry method is used, it is necessary to re-sort the collagen raw materials. This is due to the fact that under the influence of heat treatment, collagen hydrolysis occurs, which leads to the formation of a large amount of sticky broth.

With the dry method, disinfection and humidification are carried out in one device, and with the wet method – in a separate one.To obtain break-even raw materials during heat treatment, processing of raw materials in boilers at a temperature of 408 K takes up to 9 hours.During the heat treatment of raw materials, dry processing is more effective than wet.

The advantage of the dry method is that a small amount of water is used in the process, which is produced only in one apparatus and has a good yield of flakes and fat.

The disadvantage of the wet method is that most of the nutrients are converted into broth, which reduces the nutritional value of the pork. In addition, the steam consumption for evaporation of the broth increases, the release of fat decreases due to its circulation in the form of an emulsion. With increased acidity, second-grade fat is obtained (with the dry method – 80% of the first grade).