Research publications
Article archive
Simulation of the working cycle of a diesel engine with a system of periodic shutdown of the cylinders
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…
Ensuring water quality as the main goal of preserving human health
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 contamina…
Development of a technology for producing organic fertilizers based on catalytic processes
The article is devoted to the development of a technology for obtaining organic fertilizers from poultry waste based on biocatalytic processes. Currently, many poultry farms have become sources of environmental pollution, thereby causing serious environmental problems and economic and social damage…
Ingularly perturbed equations in critical cases
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, filt…
Organization of activities for the treatment and disposal of industrial waste at the landfill
Environmental protection measures are based, among other things, on the rationalization of the organization of the production waste management process. Population growth and the race to industrialize pose a serious threat to the ecosystem. Currently, the average global waste generation per capita i…
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
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 th…
Study of the effectiveness of applied standards in railway transport
The article describes the results of a study of the effectiveness of the standards being implemented in railway transport. A general view of efficiency and standardization was analyzed. It was studied which document regulates the application of standardization in the Republic of Kazakhstan. Further…
Simulation of property management using the example of filling station chain
When managing a filling station chain, it is necessary to solve the following tasks in dynamics: determining the volume of purchases by types of oil products sold and redistributing the available volume of various types of oil products to filling station chain. The peculiarity of this control task …
Influence of ultrasonic treatment on the efficiency of biogas production
This paper presents the results of the influence of ultrasonic treatment in the cofermentation of the cattle manure mixture (cattle) with the leaven from the rumen of ruminants on the process of biogas production. Anaerobic digestion was carried out in matinence periodic operation a…
Ensuring quality control by implementing a quality management system at the enterprise
The article presents the results of implementing a quality management system at the enterprise. The study and analysis of the international standard ISO 9001:2015, as well as sanitary and epidemiological requirements for production control were carried out. The main requirements and rules for the i…
Extraction of non-ferrous metals from dusts of converter steel-melting production
In the article presents the results of studies on the effect of temperature and pressure on the chloride sublimation of zinc and lead from converter dusts of steel production. Currently, an objective necessity is the development of dust utilization technologies for converter steel production, with …
Improving the efficiency of the road transport power supply system
The article discusses a way to increase the efficiency of automobile operation by improving methods for ensuring the operability of electrical equipment based on the diagnosis of generators by output voltage. As a diagnosis, it is proposed to perform a spectral analysis of the generated voltage i…
Carrying out the repair work at petroleum refineries
The development of the oil refinery is directly related to the peculiarities of the socioeconomic environment, which is determined largely by the favorable conditions of activity of all branches of economy of the Republic of Kazakhstan, a stable regulatory pr…
Technology of electronic distance course development for the adaptation of employees to activities in the enterprise
The authors consider the need to adapt new employees at the enterprise through the use of an electronic course. The article provides definitions of the concepts "e-course", "adaptive e-course". The adaptive e-course is a course designed to familiarize new employees with the history, structure and…
Possibility of using of thermal pumps at thermal power plants and heat boiler stations
Different diagrams of thermal pumps operation at thermal power plants are considered in the article. Thus, installation diagrams are considered for thermal pump based on the use of low -grade heat of turbo-unit lubricating system oil and blow-down water of a steam generator.
Asynchronous electric drive with indirect control of output variables
The article provides a mathematical description of an induction motor with a device for indirect control of the electromagnetic moment and angular velocity of an induction motor in an electric drive, which allows substantiating on its basis a method for controlling the output variables of an asynch…
Development of web-site interface on WordPress platform
The article discusses the advantage of WordPress CMS platform for web site development. The development of the interface of the website of the online store and the software code related to the functional part of the site is described. It also shows the activation, installation and configuration of …
Development of technology for the purification of water from mercury pollution
The object of the study was water and bottom sediments of the lake Balkyldak of Pavlodar region, contaminated by mercury wastes.The purpose of the work is the creation of innovative cost-effective technologies for deep cleaning of aqueous media from mercury to the level of 1-10 parts per trillion, …
Building an optimization model energy-efficient mode of functioning energy-intensive production based on a fuzzy genetic algorithm
The article is devoted to solving the optimization problem of finding an energy-efficient mode operation of one of the types of energy-intensive industries with the properties nonlinearity, inertia, and isolation. An optimization model based on a genetic algorithm is considered as a solution method…
The theoretical basis for the use of Petri nets in the simulation of enterprise logistics system
The paper is devoted to solving logistics problems based on information technologies. Petri net-based modeling is proposed as a solution method. The paper describes solution of the problem of supply chain management based on the Petri net.
Biotechnological aspects of the development of a functional jelly product
This article discusses the idea of developing a functional product that exhibits biologically active, bifidogenic properties and a strong antioxidant effect. The authors propose the formulation of sea buckthorn marmalade with the addition of immobilized probiotics. T…
Modern measuring instruments
Modern measuring instruments – a technical device, the purpose of which is to measure the unit of physical quantity. But do not confuse measuring instruments with indicators, the main purpose of indicators is to detect the presence of the measured physical quantity. Measuring inst…
Automation of determining the electrical safety level of electro technical complexes using fuzzy logic
The article is devoted to the task of automating the assessment of the electrical safety level of electrical installations based on the determination of the electrical resistivity of soil layers ρ in specific climatic conditions. The soil ρ value depends on many factors, which can…
Analysis and determination of the optimal combination of Medusomyces gisevi
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.