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Search results: physico-chemical parameters

Number of results: 23


Investigation and diagnostics of the new type paddle-type mixer parameters
Annotation:

In work characteristics of the mixing device of new type and principles of its work are given. The geometry of liquid, stream has been ivestigated arising in a tank when operating. Offers of rationalization character were brought.

Year of release: 2014
Number of the journal: 1(53)

Gossips are as object of language consciousness in Russian and English linguistic cultures
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Article is devoted to questions of studying of gossip is as a speech genre in Russian and English linguistic cultures. Speech genres as well as works on linguistic consciousness, theory and classification of rumours and gossips proposed by linguists and psychologists have been studied. Gossips published in newspaper columns “It is rumoured that…” and “Gossip! Gossip! Gossip!” were used as study materials. Specific parameters of rumours genre have been identified.

Year of release:
Number of the journal:
Heading: Humanities

The analysis of influence of various parameters on heat conduction of a number of heat-insulating materials
Annotation:

The results of the analysis of influence of some main process factors on heat conduction of heat-insulating materials are given in this article. As major factors were considered: density, temperature, humidity. Researchers are conducted on the basis of the theory of planning of experiment. The got dependences of heat conductivity on a closeness and temperature of material show approximately equal influence of these factors on the exit of experiment

Year of release: 2015
Number of the journal: 2(58)

Analysis and determination of the optimal combination of Medusomyces gisevi
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The article discusses the biotechnological aspects of the use of medusomycete as a producer of chemicals in cosmetology. Organoleptic and chemical studies of a tea drink using various growth substrates were performed.

Year of release: 2019
Number of the journal: 3(75)

Mathematical modeling of the results of experimental studies of the influence of the type and dose of cheese melting salt on the qualitative indicators of melted cheeses
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The article is devoted to the mathematical modulation of a complex of experimental data obtained in the process of experimental studies of processed cheese products, processed by mathematical methods. The purpose of this study is to establish the type and amount of the melting salt that promotes the formation of the plastic structure of the processed cheese product. The analysis of scientific research in the field of food technologies showed that mathematical modeling is used in the following areas: clarification of the modes of technological processes, design of recipes and assessment of the quality of finished products, as well as forecasting the shelf life of new products when they are put into production. The most relevant in describing the processes of food production are models of multivariate variance-regression analysis using methods of mathematical planning of the experiment. The authors carried out mathematical modeling and established graphical dependencies characterizing the degree of influence of the regulated factors X1 and X2 on the controlled ones that determine the quality and safety of processed cheese products. It is important that the mathematical analysis of the graphical dependences of the rheological parameters on the adjustable factors indicates the reliability of the data obtained. It is concluded that an increase in the melting salt dose leads to an increase in the – limit shear stress, which reflects the nature and state of the consistency of the processed cheese product. The process of normalization of the controlled factors by the maximum value was carried out. Graphical dependencies were built and regression analysis was performed, the results of which allow an objective assessment of the degree of influence of the type and dose of the melting salt on the chemical and organoleptic characteristics of the test products. The authors have proven that the optimal efficiency of transforming the structure of the constituent components of the recipe into a plastic structure of a processed cheese product that is stable during storage is provided by a combination of adjustable factors X1 (Solva 85) and X2 (Solva 120) taken in a ratio of 1: 1, with a total amount of 1,2 mas.%. At the same time, the quality indicators of the experimental products are characterized by the following values of the controlled factors: У1 – 1280 Pa; У2 – 9 points, У3 – 9,301 (2,0-2,2109 colony forming units /g).

Year of release: 2020
Number of the journal: 3(79)

Development of the technology of cream bioadditive for enrichment of processed cheese product of functional orientation
Annotation:

The article is devoted to comprehensive research and development of the technology of cream supplements for the enrichment of processed cheese products. This article discusses the steady trend towards the use of dairy products with probiotic properties in the diet of modern people. The authors justify the requirements for the chemical composition and properties of a new type of processed cheese product: the mass fraction of dry processed cheese product must be at least 45 wt.%, the amount of probiotic microflora at least 107 CFU/g, to adjust the fatty acid composition of the product, the use of milk fat substitutes. As a result of the research, the composition and technological parameters of the production of a cream Supplement intended for enriching a new processed cheese product were determined. Skimmed milk powder concentrate with a mass fraction of dry substances (48.0±0.5) %was selected to increase protein (nitrogenous substances) in the nutrient medium for microorganisms. To activate the growth of bifidobacteria, the prebiotic No. 1 – lactulose was studied. The main content of the study is the analysis of the effect of increasing the amount of SOM concentrate on the chemical composition of the compositions of experimental products. The bacterial concentrates Bifilact-B and Bifilact-u were selected as the source of probiotic cultures. In fermented products, microbiological indicators were determined: the total number of lactic acid cultures and bifidobacteria. The article analyzes the dynamics of acidity of experimental products fermented with bifilact-B bacterial concentrate and bifilact-u bacterial concentrate. It was found that in experimental products with a high level of acid formation, the growth of bifidobacteria decreases, this is due to the fact that at low pH values, the growth of bifidobacteria slows down, and at a pH below 4.5 – stops. There was a significant increase in the number of bifidobacteria in the presence of a prebiotic – lactulose concentrate. The authors proved that the fermentation process with the formation of a clot in experimental products with bifilact-B bacterial concentrate is completed within 9-10 hours, taking into account the time of compaction of the consistency. In experimental products fermented with bifilact-U bacterial concentrate, the fermentation process ends within 7-8 hours, that is, by (2.0±0.5) hours faster.

Year of release: 2020
Number of the journal: 3(79)

Factors of economic space and business network in improving the economic security of business
Annotation:

In the conditions of modern economy, factors that affect the security of the business, but relate to external resources in relation to the company or opportunities, become significant. These resources and opportunities in economics have traditionally been identified with macro-economic (economic growth, inflation, exchange rates, government support) and institutional parameters (regulatory framework, transaction costs). The influence of the quality of economic space on economic security of business through the evaluation of opportunities that are tied to the specifics of the economic space is the least researched, including in our country. In this case, according to the latest research in the field of economic geography, economic space acts as a structure-forming platform that can form local markets, with intensive interaction of business agents. The purpose of this study is ensuring of economic security by building business networks in a single economic space. The research area focuses on indicators that characterize economic space, which are successfully used in international practice to determine the quality of economic space. The realization of this approach requires the use of traditional methods of scientific research, such as analysis, comparison, graphical method for visualizing obtained results, which allows determining the agglomeration zone and the space of business networks in it. When considering economic space in relation to building a business network in improving business security, main focus is on the quality of economic space that the region has. The proposed methods of evaluating the quality of economic space are actively used to determine the possibility of building business networks in this space. The authors conclude that business networks play a crucial role in improving the economic security of business in a particular economic space. The set of proposed measures provides additional opportunities and increases the influence of economic space on business security and creates the zone of maximum external security

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Ingularly perturbed equations in critical cases
Annotation:

Singularly perturbed partial differential equations with small parameters with higher derivatives deserve special attention, which often arise in a variety of applied problems and are used in describing mathematical models of diffusion processes, absorption taking into account small diffusion, filtration of liquids in porous media, chemical kinetics, chromatography, heat and mass transfer, hydrodynamics and many other fields. It is necessary to consider the creation of an asymptotic classification of solutions of singularly perturbed equations using a well-known approach to solving the boundary value problem. In this case, the singular problem is understood as the problem of constructing the asymptotics of the solution of the Cauchy problem for a system of ordinary differential equations with a small parameter with a large derivative. The asymptotics of the solution in all cases is based on the last time interval or the construction of a boundary value problem for a system with a weak clot in an asymptotically large time interval. Purpose - to construct and substantiate the asymptotics of solving a singular initial problem for a system of two nonlinear ordinary differential equations with a small parameter; To date, a number of methods have been developed for constructing asymptotic expansions of solutions to various problems. This is the method of boundary functions developed in the works of A.B. Vasilyeva, M.I. Vishik, L.A. Lusternik, V.F. Butuzov; the regularization method of S. A. Lomov, methods of averaging, VKB, splicing of asymptotic decompositions of A.M. Ilyin and others. All the above methods allow us to obtain asymptotic expansions of solutions for wide classes of equations. At the same time, such singularly perturbed problems often arise, to which ready-made methods are not applicable or do not allow to obtain an effective result. Therefore, the development of methods for solving equations remains a very urgent problem. As a result of the study, an algorithm for constructing an asymptotic classification of the initial solution of the problem with a singular perturbation is given, and approaches to estimating the residual term are also shown.

Year of release: 2021
Number of the journal: 4(84)

Ensuring water quality as the main goal of preserving human health
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Main problem: The article analyzes water quality assurance as the main goal of preserving human health. The study of chemical and microbiological parameters of wastewater and drinking water was carried out using generally accepted standards. The number of deaths associated with the use of contaminated drinking water, according to WHO, tripled in 2021 and reached almost 19 thousand against 6 thousand in 2020. In addition, the number of neoplasms, diseases of the genitourinary system, digestive organs and skin increased by 2 %, to 1.486 million. The reasons for the increase in the level of harmful chemicals and microbiological pollutants in the water are outdated sewage treatment plants, old pipes and disinfection with chlorine. Purpose: Study of the quality of wastewater and drinking water in Pavlodar, study of the quality of wastewater and drinking water in Pavlodar. Methods: Sampling of wastewater, chemical and bacteriological analysis of wastewater and drinking water, statistical method, correlation analysis of experimentally obtained results and calculated characteristics, etc. Results and their significance: In the field of public health risk, pollution of reservoirs that are sources of household drinking water supply and recreational water use, the continuing necessary high deterioration of water supply networks, their accident rate, as a result of low level of operation, failures in the operation of treatment facilities. Hygienic assessment of reservoirs according to complex indicators indicates the continuing high degree of water pollution in places of water use. The water quality indicators of the surface reservoirs of the region remain low in terms of sanitary and chemical (primarily organoleptic and general sanitary), as well as microbiological indicators. According to toxicological indicators, the level of water pollution in places of water use is estimated as moderate. The main pollutants of the Irtysh River in Pavlodar are industrial enterprises and housing and communal facilities that discharge untreated or insufficiently treated wastewater into reservoirs. A complex of causes of drinking water pollution has been identified: high deterioration of water supply networks, their accident rate, because of a low level of operation, failures in the operation of treatment facilities, unfair treatment of industrial wastewater by industrial enterprises of Pavlodar, etc. Priority preventive directions for improving the quality of water as a source of life are the implementation of long-term targeted planning of measures for the modernization of water supply and sewerage networks and facilities in Pavlodar. The state of water supply necessary and measures to improve it should be constantly monitored and considered at meetings of sanitary and anti-epidemic commissions.

Year of release: 2022
Number of the journal: 1(85)

Simulation of the working cycle of a diesel engine with a system of periodic shutdown of the cylinders
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Combustion engines operate over a wide range of power and speed. To the greatest extent, this applies to automotive and tractor engines and diesel engines operating at fractional and idle loads for a significant part of the operating time. When designing engines, the choice of their main design and layout parameters is carried out in a comprehensive manner, taking into account the provision of the required power and efficiency in the modes of maximum torque and rated power. However, ensuring the economical operation of modern highly accelerated diesel engines at low loads and idling causes a whole range of problems related mainly to the organization of effective mixture formation and fuel burnout, as well as to ensuring stable fuel supply. Thus, the cycle dose of injected fuel in idle mode is 8–12 times less than the cycle dose in nominal mode, which determines increased requirements for fuel equipment and difficulties in ensuring high-quality mixture formation. At the same time, diesel engines operate in idle mode up to 50 % of the total operating time, consuming up to 15–20% of the fuel. For truck engines, the relative idle time is approximately 20–25 %. Thus, the development of measures to improve the efficiency of diesel engines at idle is relevant. The purpose is to perform a numerical analysis of the effect of switching off cycles in diesel engines for autotractor and diesel locomotive purposes on the working processes in the cylinder and the indicator parameters of the cycle in idle modes. When writing the article, traditional methods (comparison, description, and measurement), generallogical methods and research techniques (analysis, generalization, etc.) were used. A numerical analysis of the operating cycle of a diesel engine equipped with a cycle shutdown system was performed. The relationship between changes in fuel injection characteristics when cycles are turned off with indicator indicators of the engine operating cycle in idle load modes is disclosed. It has been established that the expediency of switching off cycles in a specific engine operation mode is determined primarily by the features of the injection, carburetion and fuel burnout processes.

Year of release: 2022
Number of the journal: 1(85)

The analysis of the avermectin group drugs efficiency in the cattle dehelmentization
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The variety of species and forms of parasites of agricultural animals and the features of their life cycles are the basic foundation for the production of different types and medical forms of antiparasite medicine. In the treatment of the parasitic diseases of agricultural animals, one of the main factors is that the veterinary doctors have the knowledge on the mechanics, efficiency and the safety for humans and environment of the medicine being used. Taking into account high pathogenicity and resistance of parasitic organisms and their ability to adapt to effect of medicine, it is crucial to permanently monitor the efficiency of the applied anthelmintic drugs, including the new drugs offered by veterinary services. This article will describe the results of the research on pharmacodynamic and pharmacokinetic parameters of «Ivermectinum», «Ivermec», «Aversect-1», «Аvrsect-2», «Аivin» drugs and their methods of application with the consideration of terms of maintenance and immune status of cattle herds in Mayconyr village (Irtysh district, Pavlodar region). A comparative analysis of efficiency of the above mentioned drugs in dehelmintization and treatment of cattle was conducted with the results provided. The recommendations and the restrictions on use of the drugs were determined considering the farm condition. The experimental research of the aforementioned broad-spectrum drugs was conducted strictly following the rules of asepsis and instructions on application. The total number of replacement heifers subjected to the dehelmintization under the method of analogues is 150 units. Anthelmintic treatment was conducted two times a year - in springtime (March-April) before pasturage, and fall time (September-October) before confining the cattle in the stable. Coprological study on intestinal helminthes of the examined cattle was conducted in Irtysh RVL of the Pavlodar regional branch of RVE RVL VCaSC MA RK by ovoscopical, flotation and larvoscopical methods. There is a comparative analysis on the efficiency of avermectin group antiparasitic drugs applied twice a year for cattle dehelmintization. The recommendations on the use of the aforementioned drugs for dehelmentization and prevention of parasitic diseases are provided and the requirements for the use were determined.

Year of release: 2022
Number of the journal: 1(85)

The possibility of using correlation and regression analysis in ecological and economic research at oil refineries
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It is known that an increase in the volume of production in any sphere of production as a consequence increases the intensity of anthropogenic impact on the environment, including the atmosphere. This problem is especially typical for oil refineries. On the one hand, this is due to the complexity of oil refining processes and the release of various hydrocarbon compounds into the atmosphere during processing. Therefore, when implementing sustainable ecological and economic development in the Azerbaijani regions that are associated with oil refining, an increase in the volume of products should not create an increase in environmental impact. This problem is considered one of the factors directly affecting the economic situation of the enterprise, as well as creating certain environmental, social and economic problems for society as a whole. The purpose is to study the possibility of using the correlation-regression method in solving the problem of determining the presence of the decapling effect. The relationship between the volume of petroleum products produced and the amount of pollutants released into the atmosphere is random and is characterized by stochastic and statistical dependence. At the same time, on the basis of a mutual comparison of the methods of correlation and regression analysis and the method of production function, the effectiveness of correlation and regression analysis is determined. The methodological basis of the work was the scientific works of scientists-economists, mathematicians providing the definition of the decoupling effect at industrial enterprises. In the presented methodology, the obtained estimates of the performed in real time vary depending on the values of the set parameter. When developing the presented methodology, the STATISTIKA software package was used. This program was developed by StatSoft. Based on the obtained and experimentally verified data, the equation of linear regression dependence is determined. During the research, it was found that in some cases it is not possible to evaluate the statistical characteristics of a random variable or it is accompanied by serious errors. Therefore, when processing data, instead of mathematical expectations and variances, we used selective mathematical expectations and variances. The analysis of the ecological and economic situation of oil refineries based on correlation and regression analysis allows us to determine the presence of the decapling effect. The obtained correlation coefficient between the volume of production oil products and the volume of emissions into the atmosphere shows that there is no statistically significant relationship between these parameters. Thus, there is an achievement of the decoupling effect between the production of petroleum products and the volume of emissions of pollutants into the atmosphere.

Author: Kh.B. Guliyeva
Year of release: 2022
Number of the journal: 2(86)

Evaluation of regions’ competitiveness as the main parameter of economic development
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Main problem: In modern science, there are a large number of techniques focused on the assessment of competitiveness through the analysis of certain resources in the region. However, accounting of human resources in such assessments is not used as a prior factor in identifying regional competitive advantages. Competitive advantages affect not only the efficiency of individual sectors of the economy but also the overall social and economic development of the country. Evaluation of the competitiveness of the region should include one of the main parameters of the human resource and economic development level. Therefore, the forecast for the competitiveness of the region should take into account the pace of human resources development. Purpose of the research is evaluation of regions’ competitiveness as the main parameter of economic development in current conditions. Methods: The methods used in Kazakhstan for assessing the competitiveness of a region considers only the assessment of human resources in its structure but do not take into account the level of their development over time, as well as the multi-factorial nature of their components. Results and their value: The work explains and analyzes rating model for assessing of the competitiveness of the regions of Kazakhstan (the National Chamber of Entrepreneurs of the Republic of Kazakhstan). The authors proposed a methodology for ranking the regions of Kazakhstan based on an assessment of the development of their human resources that affect the competitiveness of the region. It includes an analysis of demographic, labor and social and economic indicators reflecting the state of human resources.

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Assessment of regional competitiveness factors at national and international levels
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In modern science, there are a large number of techniques focused on the assessment of competitiveness through the analysis of certain resources in the region. However, accounting of human resources in such assessments is not used as a prior factor in identifying regional competitive advantages. Competitive advantages affect not only the efficiency of individual sectors of the economy but also the overall social and economic development of the country. Evaluation of the competitiveness of the region should include one of the main parameters of the human resource and economic development level. Therefore, the forecast for the competitiveness of the region should take into account the pace of human resources development. The purpose of the research is evaluation of regions’ competitiveness as the main parameter of economic development in current conditions. The methods used in Kazakhstan for assessing the competitiveness of a region considers only the assessment of human resources in its structure but do not take into account the level of their development over time, as well as the multi-factorial nature of their components. The work explains and analyzes rating model for assessing of the competitiveness of the regions of Kazakhstan (the National Chamber of Entrepreneurs of the Republic of Kazakhstan). The authors propose a methodology for ranking the regions of Kazakhstan based on an assessment of the development of their human resources that affect the competitiveness of the region. It includes an analysis of demographic, labor and social and economic indicators reflecting the state of human resources.

Year of release: 2022
Number of the journal: 4(88)

Experimental studies of the structural and rheological properties of processed cheeses in the selection of melting salts
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As part of solving the priority tasks set in the Address of the President of the Republic of Kazakhstan Kassym-Jomart Tokayev, a significant role is given to the development of the food industry, including dairy products. Big tasks are to be solved by branch science in the field of processing raw materials of plant and animal origin using the achievements of bio- and nanotechnologies to improve the quality, biological, nutritional value and food safety. New approaches are needed to organize the complex processing of plant and animal raw materials in order to improve the economic, social and environmental aspects of the production itself, as well as the life of the population of the Republic of Kazakhstan. Despite the extensive range of processed cheeses, it is constantly updated. This is due to the need to meet the requirements of nutritional science, changing consumer demand, as well as the availability of raw materials and considerations of the profitability of a particular type of cheese. The working hypothesis of the research was the assumption that for the melting of raw materials it is possible to use reagents that affect the active acidity of the medium, stabilize the structure, bind moisture and improve the consistency and organoleptic characteristics of the finished product. The article is devoted to the issue of the process of melting rennet cheeses. The purpose of the article is to show that the melting process is closely related to different forms of raw material protein micelles. In this article, the influence of the type and amount of melting salt on the formation of the structure of processed cheese is considered, the rheological indicators of experimental products are determined in accordance with the scoring of processed cheeses. The indicator of water activity (аw) was established, the microbiological parameters of the experimental products were determined.

Year of release: 2022
Number of the journal: 4(88)

Obtaining an effective biological instrument and method of reproducing lumpy skin disease
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The production of vaccine preparations before release requires standardization of their immunobiological parameters, especially safety and immunogenic efficacy. An indicator of the immunogenic effectiveness of the lumpy skin disease vaccine is the resistance of vaccinated cattle against the virulent virus. However, according to preliminary studies, the virulent control virus did not always cause clinical disease with characteristic symptoms when infected subcutaneously. The purpose is to develop a biological model in the form of a complex consisting of a pathogenic virus, a method of infection and a susceptible animal to assess the immunogenicity of a lumpy skin disease vaccine. Local cattle, intact from lumpy dermatitis, were used to reproduce lumpy dermatitis and develop the causative agent of the disease. As the initial infectious virus, we used a 20 % tissue suspension of nodules (skin nodules) obtained from cattle that fell ill with lumpy dermatitis in the field in the Atyrau region in 2016. As a viral mass to control immunogenicity, a 20 % suspension of skin nodules and edematous skin tissue at the site of the pathogen injection, obtained after the “refreshment” of the virus in animals, were used. The disease was reproduced by infection with the test suspension of the virus intradermally, subcutaneously, intravenously at a dose of 0.5 cm3 and titration on the skin of the animal. The effectiveness of the biological model was assessed by morbidity, severity of the course and severity of the manifestation of the disease. During primary intradermal infection with a field isolate of the virus, the disease manifested itself in one of three animals in the form of hyperthermia, depression, lacrimation, and the appearance of several nodular nodules in the skin of animals. The refreshed tissue virus caused clinical disease both in subcutaneous, intradermal and intravenous infection. But the clinical signs of the disease were more pronounced with intradermal inoculation of the virus, and with intravenous inoculation, it manifested itself in a more severe form with a fatal outcome. Inoculation of the virus intradermally into different areas of the skin led to the development of an independent skin lesion in each infected point in the form of painful edema, followed by necrosis, the size and intensity of which depended on the dose of the injected virus. This development of skin pathology made it possible to work out a method for determining the virus titer in vivo. The tissue virus obtained from the edematous tissue at the site of the pathogen injection was guaranteed to cause clinical disease in cattle during intradermal inoculation and made it possible to evaluate the immunogenic efficacy of the produced batches of vaccine against lumpy dermatitis.

Year of release: 2022
Number of the journal: 4(88)

Automated sprayer for processing agricultural crops
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In order to successfully conduct agricultural work and obtain a competitive harvest, it is mandatory to carry out spraying operations of crops that require highly qualified personnel, expensive equipment and suitable weather conditions. The use of tractors for spraying fields is the most common solution available at the moment, has disadvantages: high cost, risk of damage to the crop by "hitting", "hooking" or otherwise; environmental damage; due to exhaust gases, the demolition of the solution increases with increasing speed. Using a device designed specifically for spraying equipment is an ideal solution. The purpose of the article is to develop a working model of an automated sprayer for processing agricultural crops. The methods used are: technical justification of a controlled device for processing agricultural crops. Calculation of functional capabilities, algorithms of operation of the proposed automated device: selection of the type of sprayer, engine, chassis, controller, battery, as well as justification of the possibilities of using alternative energy sources (wind energy, solar energy); development of a 3D model of an automation device for anti-weed processing of agricultural crops, printing of parts, assembly of mechanical and electronic parts. Making a prototype using 3D printing; development of the wiring diagram of electronics, software (firmware of the microcontroller; application that controls the settings), testing of the prototype, assembly of the current model; rationale for the optimal use of Arduino and Raspberry Pi boards in this device in a pair: Raspberry Pi will allow you to control processes on the Arduino and easily interact with the Internet when the Arduino itself will perform simple operations such as interacting with electronics and reading sensor readings. The manufactured operating model showed compliance with the goals, a high degree of controllability, environmental friendliness, reduction of energy consumed, labor resources and can be used to scale this device. The developed model of the automation device for anti-weed treatment of agricultural crops can be used not only in agricultural pollination, but also as a mechanism for studying soil parameters: humidity, mineralogical composition and chemical content in the ground, using electronic sensors, as well as an automated mobile platform for any purpose requiring accurate navigation through the territory.

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Creating an intelligent management environment for a powerful load node on the example of the Pavlodar region
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The present stage of development of power systems is characterized by the need to increase their intelligence, that is, the formation of an environment capable of solving the problems of effective management of all components included in the power system. One of the features of modern energy systems is an active consumer, that is, a consumer who has the opportunity to optimize the schedule of loading their capacities, planning energy consumption, intellectualization of energy consumption. In addition to the fact that there are digital systems for collecting, processing and presenting information, as well as transmitting this information via the Internet, to solve the most difficult task of managing power systems, it is necessary to develop a large number of models adequate to real processes that can describe the processes taking place in the power system under consideration. The purpose is to develop models capable of adequately describing the interrelated processes occurring in the considered elements of the power system, as well as in the aggregate of related elements; development of methods that allow solving problems of effective control of elements of energy systems on the basis of the proposed intelligent models. To solve the problem of increasing the intelligence of the power system, nonlinear adaptive models of electrical complexes of an energy-intensive enterprise included in the power system were developed on the basis of balance equations and artificial intelligence methods. The production of alumina with the properties of inertia, nonlinearity and closure is chosen as the production under consideration. This type of production was chosen as the most difficult to predict due to the unpredictability of changes in energy consumption during the transition to other modes of its operation, associated, for example, with the receipt of raw materials with a different chemical composition for processing. Static and dynamic models of energy consumption of electrotechnical complexes with continuous inertial nonlinear closed production based on artificial intelligence methods have been developed, which makes it possible to eliminate the need to use long time series of retrospective data. For the considered type of continuous energy-intensive production, dynamic characteristics of energy consumption and technological processes are obtained from the main controlled parameters, which make it possible to predict emergency situations and partly man-made disasters. On the basis of a genetic algorithm, a multiparametric optimization problem of energy management of continuous production has been solved, taking into account technological parameters and cost factors.

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An innovative approach to the development of biotechnology of specialized products for the nutrition of athletes
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Main problem: the article substantiates the relevance of the development and production of specialized food products for athletes and the population involved in sports, fitness as part of a healthy lifestyle. Purpose: development of specialized food products with a general health-improving character, intended for the population involved in sports, fitness and experiencing increased physical exertion. Methods: the obtained results were statistically processed using the methods of correlation and regression analysis and standard software packages "Statistica 6.0". Measurements of chemical, microbiological, organoleptic parameters were carried out using standard methods and modern instruments: an analyzer, an analytical analyzer electrophoresis cell, a high-performance liquid chromatograph, and others. Results and their significance: a scientific concept for the creation of fermented specialized milk-based food products for sports nutrition was formulated; biotechnologies for specialized food products for athletes were developed. For the practical implementation of the results of analytical and experimental studies, packages of regulatory and technical documentation for the production of new products have been developed, which have been tested in the production conditions of existing enterprises in the dairy industry.

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Experimental determination of an effective fermented milk-protein food system as the basis of a fortified (enriched) curd product
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The article contains the results of a research work devoted to an important problem - the development, production and delivery to the consumer of fermented dairy products of a healthy diet fortified (enriched) with milk protein, a vitamin-mineral complex, and probiotics and prebiotics. Purpose is based on mathematical modeling of experimental data, to determine an effective fermented food system for use as the basis of a fortified (enriched) curd product for a healthy specialized diet; to develop a recipe and technology for its production; to study the nutritional, biological and energy value of a new product. Modern technologies and equipment were used in experimental studies: ultrafiltration, fortification, etc. The studies were carried out by standard physicochemical, microbiological methods in three to five repetitions. Mathematical and statistical processing of experimental data was carried out using the program "Statistica-6.0". A recipe and technology for the production of a curd product for a healthy specialized diet has been developed. Its nutritional, biological and energy value has been studied. The developed recipe and biotechnological parameters for the production of the curd product were tested in the industrial conditions of the leading enterprise JSC "Lyubinskiy MKK". The quality and safety of the curd product was studied in the laboratory of techno-chemical control of FGANU "VNIMI" (Moscow).

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Development of technological parameters for gluten-free pasta production
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The article is devoted to the development of technological parameters for the production of gluten-free pasta, as well as to the study of the influence of physico-chemical factors on the formation of the structure and organoleptic parameters of gluten-free pasta. The authors studied modern approaches to the production of gluten-free food in Kazakhstan. During the study, the main types of raw materials used in the production of gluten-free pasta of functional orientation were identified. For the production of a new product, a reasonable choice of raw materials and functional ingredients was carried out, the formulation and production technology were developed, all temperature and time modes were described, physico-chemical, organoleptic parameters of the new product were studied, a production flowchart was developed. The purpose of the article is to develop the technology of gluten-free pasta enriched on the basis of corn, rice flour and meeting the requirements for specialized food products, with the addition of functional and flavoring ingredients to expand the range of gluten-free products in the Republic of Kazakhstan. In experimental studies, the formula of a new gluten-free paste based on rice and corn flour with the addition of flaxseed flour, soy protein isolate «EdimCo», xanthan gum, dietary fiber (psyllium), Supermak booster was developed. The complex results of organoleptic and physico-chemical parameters of whole-grain flour for the production of new gluten-free pasta are presented. The results of organoleptic and physico-chemical indicators, as well as safety indicators of finished gluten-free pasta are presented. The article presents the technological parameters and time modes of the production process of fresh pasta, including the following basic operations: preparation of raw materials at t = 10 0C, kneading pasta dough at t = 40-45 0C, vacuuming at 40-10 kPa, pressing (extrusion) at 7 min, 10-12 MPa, drying and stabilization at 10-12 MPa, cooling of dried products t = 20-25 0C 4 hours, packaging of finished products at t = 35 0C and relative humidity 70 %.

Year of release: 2023
Number of the journal: 3(91)

Computer Modeling of the Electrical Conductivity of the Geological Environment in Problems of Monitoring the Reliability of the Foundation of Roads, Buildings and Engineering Structures
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Main problem: Monitoring the reliability of the foundation of roads, buildings and engineering structures is an important aspect of geophysical research. Modeling of geological heterogeneities is relevant. Moreover, the use of computer modeling in this problem is associated with computational costs. Purpose: Analysis of the vertical electrical sounding (VES) method for modeling the physical properties of soil and their changes when exposed to elastic vibrations. Methods: To achieve the goal, the vertical electrical sounding (VES) method was used, using a one-dimensional model of the geological environment. The direct VES problem was solved by calculating the Hankel integral. Results and their significance: The study made it possible to model a large number of soil layers using the VES method. The results obtained make it possible to determine the parameters of detected objects and changes in the characteristics of the controlled environment when exposed to elastic vibrations. The significance of the results lies in the possibility of improving the method for modeling the physical properties of soil and taking into account their changes under the influence of elastic vibrations, which helps to increase the efficiency and accuracy of monitoring the reliability of the foundation.

Author: A.A. Bykov
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Development of Technology for the Production of Meat Products of the "Halal" Category for Functional Nutrition
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The article is devoted to the development of technology for meat products of the "Halal" category. The authors consider the main problems of the meat industry in the field of the development of meat products of the "Halal" category in accordance with the National Program "Development of meat farming for 2018-2027", as well as the peculiarities of the production of meat products of the "Halal" category in Kazakhstan. A technology for the production of sausages for frying of the "Halal" category based on minced turkey and beef meat for functional nutrition has been developed, organoleptic, physico-chemical parameters of the new product have been studied. The mass fraction of protein is 8 %, the mass fraction of fat is 7 %. The authors of the article have developed a technological scheme for the production of a new product of the "Halal" category, which includes: acceptance of raw materials, cutting, deboning, veining, grinding to 2-3 mm of meat raw materials. At the next stage, meat is cooked at t 2-4 0C for 12 hours, minced meat is prepared (adding jerusalem artichoke 3 %, adding vitamin premix "Rovifarin" in an amount of 1.0 %, as well as spices and garlic according to the developed recipe). At the next stage, the minced meat is stuffed into natural shells with a diameter of (32-44) mm, cooled at t (4 + 2) 0C, stored at t (4 + 2) 0C for 36 hours. During the microstructural study of a sample of boiled and smoked sausage produced using traditional technology, it was found that the mass of the sample was formed from large fragments of muscle, fat and connective tissue (0.7-1.4) microns. The layout of the structural elements of the minced meat is dense, vacuoles and microcapillaries are rounded in shape, sometimes without clear boundaries, merged, with a size of (60-300) microns.

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