All articles

137-139 99 0

Ekologik tashkilotlarda pr matnlarining qo'llanilishi

Mukhtabar Gulyamova
Jamoatchihk bilan aloqalar (PR) jamoatchihk idrokim shakllantinsh va atrof-muhit muammolari bilan shug'ullanishni rivojlantirishda hal qiluvchi rol o'ynaydi. Ushbu maqola atrof-muhitni muhofaza qilish tashkilotlarida PR matnlaridan foydalanishni o'rganadi, ulaming mazmuni, strategiyalari va manfaatdor tomonlar bilan muloqotga ta'sirini tahlil qiladi. PR va atrof-muhit kommunikatsiyalarining nazariy asoslariga, shuningdek, cmpirik tadqiqotlarga tayangan holda, ushbu maqola PR matnlari ckologik xabarlami ctkazish, yordamni safarbar qilish va barqaror amaliyotlami himoya qilish uchun qanday ishlatilishini o'rganadi. Bundan tashqari, u atrof-muhitni himoya qilish kontekstida PR aloqasi bilan bog'liq muammolar va imkoniyatlami o'rganadi. Atrof-muhitni muhofaza qilish tashkilotlarida PR matnlarining rolini yoritib. ushbu tadqiqot atrof-muhit haqida xabardorlik va harakatlami rag'batlantirish uchun aloqa strategiyalarini chuqurroq tushunishga hissa qo'shishga qaratilgan.
42-47 89 0

Digital transformations of personnel management in oil and fat factories

D Azlarova
The article deals with the development of digital transformation of personnel management in fat and oil enterprises. The article examines the problems and key
aspects of the transformation of personnel management methods in fat-and-oil enterprises during the transition to the digital economy. The importance of digital
technologies, new generations and a change in the management worldview is emphasized. The characteristic of the key changes in personnel management systems in
the fat and oil enterprises of the country is given.
And also, the process of information transformations is investigated, attention is focused on the importance of personnel in the digital development of fat and oil
enterprises
25-30 61 0

Digital transformation of tax administration in Russia

Yu Gambeeva, N Kojukhova
The article considers the main trends in the development of the tax administration system in the conditions of digital transformation of the economy. The main stages of introduction of digital technologies in the activities of tax authorities of Russia are defined. The main directions of digital modernisation of tax administration are analysed. The conclusion is made about the impact of new business models on the communication process between taxpayers and tax authorities, which requires the use of modern digital technologies. The main opportunities and threats of digitalisation of tax administration are also identified.
43-49 51 0

Digital technologies as key drivers of accounting development in the conditions of digitalization of the economy

J Korzovatykh
The article is devoted to the study of the influence of digital technologies on the development of accounting. The development of the instrumental base, methodological approaches to the organization of accounting and the creation of a single information space for obtaining reliable, relevant and information, allows improving the quality of management of the activities of economic entities. The purpose of this work is to assess changes in the elements of the accounting method under the influence of innovative digital technologies introduced into the accounting process. The article examines the mechanisms of the expected transformation of the methodological basis of accounting, which is a necessity for the further development of accounting. The research methodology is based on the dialectical method and historical analysis of economic phenomena.
268-271 29 0

Differentiation of kidney pathologies using deep neural network technologies

Narzullo Mamatov, Islomjon Juraev, Barno Abdullaeva
This research paper is devoted to the problem of classifying pathologies in renal computed tomography images using deep neural networks, where not only binary classification such as «normal/pathological» but also complex differential diagnosis issues between pathologies arc analyzed. The paper also proposes a combinatorial approach to classifying pathologies, in which it is shown that initially making a general diagnosis using a four-class classification model, and in doubtful cases, additional examination using binary or ternary models is acceptable for clinical practice.
1-83 92 0

Device management systems single spatial elektromagnetik field

Ozoda Ibragimova

The topicality and demand of the theme of dissertation. At present, the accelerated development of new technologies around the world enhances the demand for the use of the electromagnetic field device management systems, production processes, every day. The world is currently about 35% of sewage and drinking water should be cleaned, decontaminated and desalted. In this context, the rational use of drinking water, municipal and industrial, sewage, improving the quality of processing, with the help of technical means of cleansing and disinfection and technologies usoverschenstvovanic comprehensive measures arc priorities.
Globally, currently about 2-3% (K.W. hour) of electricity generated is spent on the purification of waste water, decontamination and desalination. In this regard, one of the main objectives of the national economy is to provide decontamination and desalination devices with high performance and efficiency, greater reliability and energy efficiency, it becomes important.
In this regard, according to existing technologies reagent methods of cleaning and disinfection arc costly and ineffective, in which water is not enough cleaned and disinfected, does not provide high reliability and economic efficiency. Based on these provisions, it is appropriate to study, research devices, control systems unified spatial electromagnetic field. On the basis of performed cleaning, disinfection, desalination and desalination, which provides energy saving, high reliability, performance, and versatility that is highly relevant.
In this regard, of particular interest is the introduction and improvement of science-based technologies of processing and analysis of cleaning methods, decontamination and desalination of water, based on the pulse and vortex electric, electromagnetic, magnetic, gravitational and twisting vortex field device management systems, unified spatial electromagnetic field.
This dissertation research to some extent is to complete the task given to the Cabinet of Ministers "Improvement of water supply control systems», №320 of 21 July 2003 "On the economical use of water resources», №183 from April 14, 2004.
The purpose of the study is to provide a unified management systems spatial electromagnetic field for cleaning, disinfection, desalination of sewage and drinking water.
Conclusion
Summarizing the results of carried out researches the comprehensive studies of the SSDF were conducted for the first time in the dissertation. Industrial, experimental and theoretical studies allowed to determine a stable work of SSDF by using modem electronic control devices which provide a stable work in its operating range.
The main scientific results, conclusions and recommendations of the work arc the following:
1. There was determined that study of issues of the comparative analysis of electromagnetic pulse power systems and power control systems of electromagnetic devices of a single spatial field showed that the device of final control element, based on pulse electromagnetic field and vortex electric field using much more fully meets the requirements.
2. There was developed a control system with thyristor inverter of frequency for the plant of purification and disinfection of water by the pulsed electromagnetic field, providing consistency of shape and amplitude of the oscillation energy in the executive solenoid of exciting winding.
3. There were studied devices of final control element’s control system with using of Elcktronics Workbench software and tool program C ++ Builder. The modeled data gave the possibility to clarify and visually examine processes taking place in device and improve the control system scheme.
4. There was stated from a current-voltage characteristic of the single surface field’s device control that starting from 60 A to 300 A the section of a currentvoltage characteristic (linear section) is the voltage stabilizer and most suitable for SSFD work. The voltage in the SSFD on this section does not depend on the applied current, and depends only on the design features of the inductance coils of final control element’s exciting windings and copper rod of SSFD. For the stable operation of SSFD there was determined a control voltage providing the stable work of SSFD in the current working range.
5. There was proposed the calculation method for the linear magnetic system, determined the electromagnetic force field winding of the final control element at serial and parallel connection. A feature of this method is that the ratios between the flux linkages and currents for such a system are written in the form of linear equations containing inductance and mutual inductance of exciting windings of the final control element.
6. There was found that minimizing condition of relative losses in the copper of the field winding taking into account its characteristics can be provided only with a definite form of voltage impulse at its clamps. In the electromagnetic system with non-zero internal resistance of the circuit and the final value of inductance can be obtained the minimum value of the relative energy losses in the copper of exciting winding if pulses of the square of the current and inductance derivative to carry out with respect to time at similar form.
7. There were shown the dynamic properties and sustainability issues, as well as the reserves of stability and transients for SSEF real control systems were identified to ensure the normal operation of the device. Experimental studies of SSEF control system showed that newly developed system meets all the requirements of the control systems of such devices in the dynamic conditions of their work.
8. There were developed the algorithms for calculating the reliability of SSEF control systems that allow us to determine the quantitative characteristics of reliability in operation.
9.The industrial model has passed tests at sewage treatment plants of Salar WWTP "Suvsoz." The use of industrial model has reduced the collie-index almost to 99%.
10. The developed device management systems SSEF on key technical indicators and parameters is significantly superior.
When using the device management systems common spatial electromagnetic field reliability exceeds 1,30 times the prototype, the efficiency of 20% water disinfection performance and service life is increased twice.
The economic effect of the introduction of the device management system is EPEP 67 million, sum per year.
Thus, on the basis of theoretical generalization and implementation set out in the new research positions, solved a big problem of developing a unified device management systems spatial electromagnetic field which is of great economic importance.

1-80 102 0

Development of statistical methods and the automated devices for quality control of the silk cocoons

Ravshanbek Mirsaatov

Topicality and demand of the theme of dissertation. In the world of cocoons arc produced in more than 35 countries and is prepared annually on average 640 000 tonnes of cocoons. Among the countries that produce cocoons, arc the leading people's Republic of China, Uzbekistan, Japan and Korea and these countries produced 92% of the cocoons. Reception cocoon raw materials on the basis of quality indicators and the application of the most efficient technologies of their processing, in the processes of deepening globalization and increasing competitiveness of products on the market cocoon of raw materials remains one of the most important tasks.
In the years of independence in Uzbekistan special attention was paid to the effective development of sericulture, and the development of high quality competitive on the world market of raw materials and silk products. In this aspect, the improved food base, improving the productivity and quality of fibre, the cultivation of resistant pests and diseases of silkworms and development on the basis of modem requirements of production and processing of cocoons achieved tangible results.
Increase productivity and improve the quality of the cocoons by reducing the share of defective cocoons is essential to increase the efficiency of the economy. In this aspect, targeted research, including implementation of the following areas arc considered to be one of the important tasks: biological properties of cocoons, physical and mechanical properties taking into account quality indicators, development of modem methods of determining the qualitative parameters; automation and control of technological processes through the creation of a highspeed device; receiving the cocoons on quality indicators and the organization of this process; organization of control on every stage of cultivation of cocoons and a detailed study of the impact on the quality factors, the development of new technologies; saving of raw materials and high-performance of achievements of science and technology, development of machines and devices the creation of new generation energy-saving controls and automation. The above analysis of scientific studies and trends indicate the relevance of the topic of this thesis.
This dissertation research was to a certain extent is the implementation of the tasks stipulated in the decree of the President of the Republic of Uzbekistan PP-512 «About measures for further reforming of silk industry of Uzbekistan» dated 15 November 2006, PP-1512 «On additional measures to stimulate the development of textile industry» on 28 March 2011, and other regulatory instruments adopted in this field.
The object of the study arc the processes of sericulture, new devices for these processes and live cocoons.
Scientific novelty of research consists in the following:
developed and justified statistical methods to determine quality parameters (volumetric stiffness, silkiness of the cocoons, maturity of pods, density and shell thickness) of cocoons on the basis of the rigidity of their shell;
developed a device for determining the volume of solids of complex shape, which is used to determine the amount of cocoons that arc required for the calculation of the correction factor in the calculation of silkiness samples of live cocoons in rented party;
developed a method and apparatus for determining the percentage of immature and cocoons with a large specific volume (capercaillie). Given this information, calculation of silkincss of the cocoons;
there arc three types of method and apparatus for the more accurate determination of actual mass of silk cocoons, as well as the maturity, thickness and density of the shell cocoons hardness of the shell of the delivered consignment of cocoons;
upgraded device for measuring specific volume of cocoons PTI-1M with fixing a constant sample mass of live cocoons (3kg) and automatic removal of the layer height cocoons measuring cylinder, designed to determine silkiness of the cocoons without cut. Developed a rapid method for the determination of silkincss of the cocoons.
CONCLUSION
On the basis of conducted research we can draw the following conclusions:
1. To determine the qualitative parameters of silk cocoons proposed the use of non-destructive statistical methods on the basis of the rigidity of their shell. As a result, receive signals, analyzing and processing using mathematical methods and computer software, it is possible to define such quality parameters as the volumetric stiffness of the sample cocoons, the cocoons silkincss of the cocoons, maturity of pods, thickness and density of the shell cocoons.
2. To determine the correction factor required in calculating silkiness samples of live cocoons in rented party developed a device for determining the volume of solids of complex shape, which allows to determine the average volume of cocoons. The relative error of the developed device is equal to 0,17%.
3. To improve the measurement accuracy of the developed method and device for determining the percentage of immature cocoons and cocoons with a large specific volume, given this information, calculation of silkiness live cocoons. The relative error of the developed device does not exceed 1%.
4. The developed device for determining silkiness, ripeness and thickness of the shell silk cocoons without cut, allow high precision to determine the actual quantity of silk mass of cocoons, ripeness and thickness of the shell cocoons of the delivered consignment due to their rigidity of the shell.
5. To reduce the percentage of immature cocoons, bringing severe economic damage to sericulture, it is proposed modernized version of the instrument PTI-1M with an automatic removal of the layer height of the cocoons of the measuring cylinder. The standard error of live cocoons, defined in relation to without cut device FTI-1M is 0,456 %.
6. Proposed and experimentally proven mathematical model to calculate the correction factor for the volume of live cocoons, which it is proposed to use in determining silkiness in party live cocoons.
7. Developed a rapid method for the determination of silkiness live cocoons without their without cut, providing increase of accuracy and efficiency when determining live cocoons of any breed. The standard error of silkiness specific Express method (PTI-1M) relative to without cut less than 2 times the standard error of a particular silkincss cocoons method, PTI-1 относительно of without cut.
8. The optimal weight of 3kg live cocoons with the use of the device PTI-1M, is designed to determine silkincss live cocoons without cut. It also takes into account the presence of cocoons-grouse and muscardini of the cocoons, as an amendment in the calculation of silkiness of live cocoons in the computer version.
9. A method was developed to determine silkiness live cocoons hardness of their shell device PTI-1M, and implements software. The increase of accuracy of definition of live cocoons is achieved by taking into account the thickness of their shells. The standard error of silkiness determined by the proposed method relative to without cut is 0.4%.
10. Proposed and implemented the definition of the volumetric stiffness of the sample live cocoons with the help of the device PTI-1, which evaluated the technical and economic value of the game, both living and dry cocoons. It is shown that the value of the volumetric stiffness defined by the proposed technology, agreed with the experiments performed with single cocoons and calculating the average volumetric hardness.
11. Experimentally investigated the influence of different vibration modes on the degree of tapped and quality of cocoons. Determined the most optimal amplitude, frequency and time of vibration, ensuring a relatively uniform density of packing of cocoons in a cylindrical tank.
12. The influence of the moisture content of the cocoons on the accuracy of determining silkincss when conducting without cut, when determining the correction factor K, as well as with industrial acceptance of the cocoons.
13. The experimentally determined degree of influence of percentage content of cocoons-grouse on the readings of PTI-1M in the direction of overstatement. The Express-method of determination of the percentage of cocoons with a large specific volume and is given the formula for amendment in determining the real silkincss live cocoons at the time of their collection points cocoon of raw materials.
14. Justified and recommended to use sorting of cocoons in terms of specific volume (SCWA) grantovogo to separate the cocoons from the Persian aparsc. He is replacing manual labor increases the rate of separation 4 times on coronaricnnc points in the season harvesting of live cocoons and increases the accuracy of determining silkincss live cocoons without their without cut device of PTI-1, by pre-culling of cocoons-grouse with large specific volume of the sample.
15. Based on the comparison of the results of silkiness live cocoons of a certain method without cut, apparatus PTI-IM, and the proposed new Express technique it is shown that the values of silkiness live cocoons defined in the last two cases close to the value of silkiness on without cut and absolute root mean square error of a certain silkiness live cocoons less than one .

134-136 93 0

Development of service industries based on the digital transformation of the economy

Jamila Bobanazarova, Abror Rashidov

Мазкур мақолада рақамли иқтисодиёт тушунчаси, рақамли иқтисодиётга хос бўлган технологик ўзгаришлар, хизмат кўрсатиш соҳасини ривожлантириш бўйича олиб рақамлаштириш соҳасидаги ўзгаришлар
масалалари ёритиб берилган, олиб борилган тадқиқот натижасида муаллифлар томонидан амалий тавсиялар илгари сурилган.

1-71 97 0

Development of novel composition coal-alkali and clay adsorbent for refining cottonseed oil

Dilnoza Salikhanova

Actually and relevance of the subject of dissertation. The present in the world providing the population with safe food and the satisfaction in desired level for product nutrition needs is food industry. Therefore, the stable development of the production of local food and raw materials, delivery on the market of safe and quality nutritive on consumption rates in the established range is a basic task.
After acquisition of independence in the country food industry has been formed working on high technology, which is currently being converted into one of the leading sectors of the economy. It is assimilated that ensure of food safety, the completion of the internal market with high quality food, modernization of production, paid that special attention to the launch of new capacities to production of import-substituting products. Stimulation of the modernization and diversification of production, as well as support of the implementation of these arrangements ensures the growth of production of food products.
Production of qualitative food products at the global level, including refining of cottonseed oil using kaolin and bentonite adsorbents, focusing on the development of new approaches of their activation and modification is considered an important task carried out in the direction of scientific research for technology creation of novel adsorbents with high quality of their adsorption properties. When development of activation technology coal, kaolin, and bentonite that have low adsorption properties is necessary to justify appropriate in this area a number of scientific solutions: development of effective methods of thermal activation of kaolin raw materials; setting changes the composition and properties in the process of activation and modification of selected bentonite and coal; creating effective compositions of activated clay and coal-alkali adsorbents for refining heavy bleached cotton oil and increase of the efficiency of the bleaching process.
The present dissertation research serves to a certain extent performance of the tasks provided for in the Decree of the President of the Republic of Uzbekistan № UP-4707 on March 4, 2015 «About measures for structural reforms, modernization and diversification of production in 2015-2019» and the Decree of the Cabinet of Ministers of the Republic of Uzbekistan №8 from 01.22.2015, «On additional measures to decumulation of costs and reduce of production costs in industry», and other normative and legal documents related to the work and its practical implementation.
The research objective is development of novel coal-alkali and clay adsorbents based on local raw materials and the improvement of treatment technology of press and the extraction cotton oil with their application.
The scientific novelty of the thesis research is as follows:
there have been developed the conditions for obtaining effective coal-alkali adsorbent by pre-soaking the Angren coal low ash 2BPK brand by Na2CO3 solution and further it heat treatment by pyrolysis without air;
It found that activation-Sultan Uvaysk kaolin by microwave radiation in compared with a conventional (convective) heating process accelerates in 2.0-3.0 times;
It found that by activating enriched in calcium bentonite from «Jahon» deposits replacement of the traditional sulfuric acid (H2SO4) in the hydrochloric acid (HC1) allow to improve the bleaching ability of the resulting adsorbent in 1.2 times;
for the first time there has been created the possibility of reduce of saponification of the neutral fat and the alkaline reagent consumption during the refinement cottonseed oil to use cheap water solution of Ca(OH)2 instead of conventional expensive NaOH solution;
for the first time there has been revealed the purification of carcinogenic 3,4-benzo [a] pyrene and hydrocarbon residues from the extraction cotton oil by developed coal-alkali adsorbent;
there have been developed the novel effective composition technologies based on coal-alkali and clay adsorbents establishing their selective properties for the harmful and carcinogenic substances containing in the cotton oil;
there has been developed the technology of a two-step refining and bleaching of cotton oil at recycled flow of mixture oil with adsorbent.
CONCLUSION
1. Based on analysis capacity, as well as the composition and properties of raw materials in Uzbekistan there have been identified the perspective deposits of coal and clay (kaolin, bentonite and palygorskite) minerals suitable for the industrial production of adsorbents for cleaning and bleaching of vegetable oil.
2. In order to obtain highly porous coal-alkali adsorbents it has been suggested that Angren coal to impregnate it with 10% Na2CO3 solution before its pyrolysis no oxygen.
3. To improve the alkaline properties of the coal-alkali adsorbent recommended after pyrolysis impregnate with 10% NaOH solution with further by drying and grinding to the desired granule composition.
4. It has been found that acid activation of bentonite with high (greater than 3% by weight) CaO content in order to avoid the formation of significant amounts of gypsum, it is rationally to use a 10% solution of hydrochloric acid instead of conventional sulfuric acid.
5. There has been established that replacement convection heating using microwave (MW) radiation at a frequency 2450 MHz allows to increase sorption activity in 1.2-1.4 times and reduce the time of thermal activation of Sultan Uvaysk kaolin in 2-3 times (depending on the kaolin wet).
6. There has been the way of alkaline refinement of dark-colored cotton oil providing replacement high-priced caustic soda (NaOH) at low cost limestone milk that considerably reduces of neutral fat saponification decrease and increases outlet refined oil in 1.2 times.
7. There have been developed the optimal conditions for the removal of carcinogenic 3,4-benzo pyrene and remnants of hydrocarbons from extraction oil on the modified coal-alkali adsorbents.
8. There have been developed the technologies of coal-alkali, kaolin, and bentonite adsorbents for refining press and extraction cotton oil.
9. Selective properties of the developed clay and clay-alkali adsorbents based on that are created the effective compositions for cleaning and bleaching heavy bleaching cotton oil have been found.
10. The technology of the two-stage adsorption treatment and bleaching cotton oils at thermo differentiated and recirculating flow of oil with the adsorbent has been developed.
11. It is shown that the economic effect of the introduction of only bentonite adsorbents based on deposits «Jahon» at JSC «Beruniy yog-gar» for refining and bleaching cotton oil is 169.4 million sums per year.

1-56 172 0

Development of efficient designs and improved scientific approach to estimate the parameters of saw Gin mechanisms

Salokhiddin Yunusov

The aim of the research work is development of efficient design of working details and mechanisms of saw gins.
Scientific novelty of the research work: effective and resource efficient constructions of saw gin mechanisms have been developed; analytical method of indication of law for motion of rotor drive and saw gin beam has been developed; estimation method of random reflection from cotton and support with non-linear stiffness is calculated; the rule of oscillating motion on resilient support is identified with analytical method; active parameters are developed; a method of friction decrease between short fibers and saw gin mechanisms is developed.

1-28 56 0

Development of effective technology of reception metal polymer compositions from waste sorbtion leaching of gold

Suleyman Khudoyarov

Subjects of research: metal polymer compositions formed at sorption leaching of gold from gold ores. Waste of unit of delivery of pitch on regeneration (“shepa” and sand).
Purpose of work: development of effective technology of reception metal polymer compositions from waste of sorption leaching gold by their additional flotation in gold extraction manufactures.
Methods of w'ork: in work physic mechanical, chemical and physical and chemical methods of researches flotation processes and waste of unit of delivery of pitch on regeneration arc used. For calculation of technological losses metal polymer compositions on all repartitions of sorption leaching the computer program is used.
The results obtained and their novelty: as a result of the lead researches laws of formation ferro-and ferricyanides arc established at sorption leaching of gold. Negative influence formed ferro-and ferricyanides on capacity and flotation properties anion exchange pitches is established, diagrams Purbc of sorption leaching of gold is constructed. For extraction of functional classes metal polymer compositions from “shepa” and from sand allocated in unit of delivery of pitch on regeneration for the first time have been used a method of flotation. The effective technology of reception metal polymer compositions from waste of sorption leaching of gold is developed.
Practical value: the developed technology of reception metal polymer compositions will allow to reduce losses anion exchange pitches with production wastes, to lower the cost price of let out production and to raise efficiency of process sorption leaching of gold ores.
Degree of embed and economic effectivity: at approbation of technology in the integrated laboratory conditions on the basis of laboratory “Enrichment of minerals” The Tashkent state technical university. Extraction metal polymer compositions from “shepa” has made compositions 94,3% and from sand 96,22%. Losses of pitch thus decrease with 6,5 up to 1,29%. Expected economic benefit at introduction of technology of reception metal polymer compositions on a gold extract factory productivity 600 ton ores in day will more than 80,0 million sum in a year.
Field of application: mining-metallurgical industry.

52-57 41 0

Development of a mobile application for covering local events and incidents

Temur Turdiyev, Jaloliddin Omonbayev
In today’s interconnected digital landscape, ensuring timely and secure dissemination of information about local events and incidents is critical for fostering community engagement. This article presents the development of an Android-based mobile application designed to provide real-time updates on local events while incorporating robust security measures such as data encryption, user authentication, and secure database management. Built using Android Studio and Firebase, the application offers features like event listing, real-time chat, and push notifications, all tailored to the cultural context of Uzbekistan.
10-15 51 0

Dependence of customs services at an intelligence checkpoint on the oscillatory processes of technology development and artificial intelligence

P Afonin, A Lebedeva
The article defines main technological mechanisms for customs service development in the framework of improving the efficiency of actual customs control. The authors analyzed existing promising scientific, technical and digital solutions of the national strategic level, and determined the boundaries of their adequacy in the case of using such solutions in an intelligent checkpoint, mathematical apparatus for assessing the life cycle of the implementation of such technologies is proposed. Technological solutions, that are most consistent with the goals of the Strategy of customs service development until 2030, have been identified.
71-79 104 0

Decision tree classification in machine learning and hyperparameters

Jamshid Salimov, Akbota Abylayeva

Machine learning algorithms play a crucial role in extracting valuable insights from data, enabling businesses and researchers to make informed decisions. One such algorithm is the decision tree, which is widely used for classification tasks. Decision tree classification utilizes a tree-like model of decisions and their potential consequences, making it an intuitive and powerful tool for solving complex problems. In this article, a model that determines which drug is suitable for a patient with a certain disease is created using the Decision tree algorithm. This problem is multi-class classification (multiclass classification) help score consolidation. Alternatively, how function, domain, and hyperparameters simplify decision tree models are explored.

60-62 117 0

Datasets for intrusion detection systems: enhancing network security

Suhrobjon Bozorov

Intrusion Detection Systems (IDS) play a pivotal role in safeguarding networks against cyber threats. To effectively develop and evaluate IDS solutions, access to diverse and comprehensive datasets is crucial. This article explores the importance of datasets for intrusion detection, highlights key requirements for such datasets, and discusses notable datasets and their features commonly used in the field. By understanding the value of high-quality data, researchers and cybersecurity professionals can better address the evolving landscape of network attacks and fortify their defense mechanisms.

1-44 80 0

Contactless Ferromagnetic transformations with distributions of magnetic parameters for the system of control and management

Anatoliy Plakhtiev

Research objects: contactless ferromagnetic transformations with distributions of magnetic parameters CFT and devised of non-destroyed control of quality of industrial production and functioning of technical processes expansion of controlling scopes, mathematical models of the main characteristic, the sources of errors effective and multifunctional ferromagnetic transformations and processes of their projection.
Purpose of work: theoretical generalization and development of methods of originated of contactless ferromagnetic transformations with distributions of magnetic parameters with the purpose of creation of contactless ferromagnetic transformations with distributed of magnetic parameters with the purpose of rise effectiveness and broadening of functional possibility of contactless ferromagnetic transformations and functioning technical process for the system of control and management.
Research methods: analytical and experiment methods and methods of structural schemes, theory of automatic management, theory of measuring transformers, theory of errors and operator method.
Got results and their novelty: generalized principles of construction of CFT of contactless ferromagnetic transformations with distributed magnetic parameters devices of non-destroyed control of quality production and technological processes, classified and exposed the generalized structural schemes and methods of improvement of main basic description of CFT allowing to receive 21 of author’s certifications for inventions: developed and explored new constructions and their mathematical models, were offered with the calculation of non - linear of crooked magnetized, distributed magnetic parameters and constructive features of different types CFT. The static and dynamic models are worked out which allow to analyze all basic exact characteristics and it was worked out a method of heuristic structural synthes of CFT on the basic of counts models of combination of socialized methods, and graphical models improving of their main characteristics, introduce order scheme of priority of main elements with the calculation of a requirement introduced by systems of control and management, the method of the parametrical planning of CFT is developed with the use of computer which allows to choose optimum parameters.
Practical value: developing in the dissertation general principles of construction CFT allow to analyses existing and to develop new patent ability constructions. CFT of non-destroyed control of quality. Worked out methods of analysis and synthesis of distributing of magnetic stream in integration. Can be used for research development of new high effective and multifunctional and non - destroyed of contactless transformation and devices and transformers of velocity on base of CFT too. Given in account in the dissertation allow to make a preliminary choice of structure and according to small and general elements CFT, calculation their main characteristics and to work out CFT having enlarged controlled diapason in main elements and mass, technological construction lowered material capacity and cost galvanic out come between coming into and out of chains and raised exactness because of diminution of errors from influence of external magnetic fields of neighboring tires with current and from displacement tires from the centre window CFT and possibility of fixed regulations of sensibleness in a broad diapason transformed CFT and flexible integration contour for heavy external environment of CTF, devised in different systems of control and management with the help of leading to formulas graphs and programs of calculation on computer.
Degree of introduction and economic efficiency: worked out CFT and devices of non-destroyed control of quality of industrial production and functioning of technical processes and transformation of velocity of rotation of engines are inculated by small series in systems of automatized electro wires - drawing machines and in SAM of main drivers of rolling - mills 600, 1000 and 1200 and vacuum arched stoves at the UzHAW (Uzbek hard alloys metals) in S of AR of current of load of electrolysis baths SC “Electrokimesanoat” and Moscow scientific - research Institute of chlorine industry (Russia) in straightened terristorical establishments in Almalick metallurgical plant in main drive and rolling - mill 850 at Serov metallurgical plant( Serov Russia) in the system of nutrition focusing and rotary electromagnetic of accelerators of elementary fractions in common works with SRI of energetics and automation of AS of republik Uzbekistan, in Chirchik EKB of A SU in chemical automation in ore thermal of AS of M of IJ of production of yellow phosphorus of Shimkent PJ (Kazakhstan) and OJSC of “ChTP”, Plant “Deka”, OJSC “UzHAW”, Chirchik AEN, OJSC “Uzbekkimemash”, OJSC of Megaluxe Trait so on. An economic effect from realization of developments makes 18.43 mln sum at present time.
Application domain: drawn on results of researches and developments can be widely used in working out of light non - destructive contactless as stationary as portable CFT for the very different system of control and management with application in some cases of micro processes in chemical industry colour and black metallurgy in electro machine - building and in electro apparatus - building in manufacturing industry in electrical transport and etc.

1-62 64 0

Conception and methodology of the technological tools at mechanical engineering ventures on the impact of aerodynamic movement

Shukhrat Fayzimatov

The aim of the research work is the development of scientific foundations for the development and controlling of automated technological equipment on aerodynamic action for increasing production efficiency.
Scientific novelty of the research work Calculation and design of automated technological equipment for the aerodynamic action of finishing and hardening processing of cylindrical parts and developing of fundamentally new devices for loading flat products, transferring aggressive media, transporting small piece products and installing rivets into a hole with a vertical and horizontal axis..

188-194 49 0

Comparative analysis of machine learning methods in oncoprevention and diagnosis

Charos Khidirova
The paper presents a comparative analysis of machine learning algorithms applied for the early diagnosis of oncological diseases. The paper examines algorithms such as Random Forest, XGBoost, AdaBoost, and others, tested on various clinical tasks including cervical, lung, and skin cancer. Special attention is given to ensemble methods, which demonstrated the highest accuracy, particularly the Random Forest algorithm. The study emphasizes the versatility of the methods, their adaptability to heterogeneous medical data, and their potential for developing intelligent clinical decision support systems.
569-570 64 0

Chiqayotgan, kirayotgan va tranzit pochta jo‘natmalarini saralash jarayonlarini avtomatlashtirish yo‘llari

Khokimbek Akhmadbekov

Ushbu maqolada pochta jo‘natmasiga ishlov berishda saralash jarayonlarining o‘rni, pochta aloqasida chiqayotgan, kirayotgan va tranzit pochta jo‘natmalariga ishlov berish jarayonlari, bu borada xorijiy olimlarning fikr-mulohazalari asosida jo‘natmani manzilga yetkazib berishning o‘ziga xos yo‘llariga to‘xtalib o‘tilgan.

219-224 56 0

Brain from code – how algorithms make business successful

Javokhirbek Esonov, N Egamberdiev
This work is dedicated to exploring the application of machine learning (ML) in transforming business processes within the digital economy. The study examines the potential of ML algorithms for automating management, forecasting key performance indicators (KPIs), and optimizing resource allocation. The article provides a detailed overview of theoretical foundations, the methodology for developing software solutions, and the results of experiments conducted on real-world data from logistics and e-commerce. Examples of using linear regression, random forest, gradient boosting, and neural networks are presented, demonstrating their effectiveness in enhancing productivity and reducing costs. The work emphasizes the strategic role of ML as a tool for achieving competitive advantages and suggests directions for further research in adapting these technologies to various industries.
136-137 113 0

Boshqaruv jarayonlari va tizimlarini avtomatlashtirish (O‘zbekiston pochtasi aj misolida)

Khokimbek Akhmadbekov
Ushbu maqolada pochta aloqasida boshqaruv jarayonlarini tashkil ctishda saralash jarayonlarining o‘mi, jo'natmani saralash uchun vaqt normasini hisobga olish, bu borada xorijiy olimlaming fikr-mulohazalar asosida jo‘natmani manzilga yctkazib bcrishning o‘ziga xos yo‘llariga to'xtalib o'tilgan.
197-200 44 0

Big data technologies suitable for natural language processing

Mastura Primova
With the help of modem technologies and big data technologies, it is also becoming difficult to implement large volumes of texts in the Uzbek language. Training language models from large corpora, extracting meaningful information from real-time chats, semantic indexing of texts and creating search engines are all now implemented through the integration of platforms such as Hadoop, Spark, NoSQL, Kafka and Elasticsearch.
83-87 160 0

Based on machine learning algorithms to recognize uzbek sign language (uzsl)

O Kayumov, N Kayumova

Sign language recognition has gained significant attention due to its potential to bridge communication gaps between the deaf and hearing communities. This article presents a comprehensive review of machine learning methods employed for the recognition of Uzbek Sign Language (UzSL). The unique visual and spatial nature of sign languages poses challenges that necessitate specialized techniques for accurate recognition. This review surveys various approaches, ranging from traditional techniques to modern deep learning methods, used to recognize UzSL gestures. The article begins by introducing the significance of UzSL recognition and its impact on facilitating effective communication for the Uzbek deaf community. It outlines the complexities involved in sign language recognition, including variations in hand shapes, movements, and facial expressions. The challenges of limited training data, real-time recognition, and capturing dynamic features are discussed in depth. A survey of traditional machine learning methods such as Hidden Markov Models (HMMs), Support Vector Machines (SVMs), and k-Nearest Neighbors (k-NN) is presented, along with their applications and limitations in UzSL recognition. The evolution of these methods into more sophisticated approaches like Dynamic Time Warping (DTW) and Conditional Random Fields (CRFs) is also explored.

12-14 42 0

Automation of communications between employees and patients of medical institutions

Nursultan Sagidullaev
This article discusses methods for automating communication between healthcare workers and patients. An integrated communication platform is proposed, outlining its key advantages and the mathematical modeling basis.
111-114 106 0

Automated systems of clothing design, three-dimensional modeling

Dilafruz Djalolova, Jamshid Saidov

Ushbu maqolada kiyim loyihalashning avtomatlashtirilgan sistemalari, uch o‘lchamli modellashtirish, andozalarni konstruksiyalash va virtual kiydirish, virtual modellar to‘plami hamda harakati to’g’risida ma’lumotlar keltirilgan.