Pub Date : 2021-02-28DOI: 10.26739/2181-9696-2021-2-5
B. Saidov, D. Rustamova
This article provides information and recommendations on the safety of hydraulic structures and the prevention of emergency situations.Constant monitoring of the technical condition of the structures and improving the necessary skills of the actors allowed us to anticipate possible emergencies. A great danger is the destruction of dams or dams of large reservoirs located within the borders of these settlements, in which there is a rapid flooding of nearby territories with great material and human losses. Therefore, preventive measures to prevent catastrophic events are of paramount importance.Keywords:hydraulic structures, hydrological safety, accident hazard analysis, flow wave, dam, boundary, drainage, head, reservoir
{"title":"ANALYSIS OF THE HAZARDS OF HYDRAULIC STRUCTURES","authors":"B. Saidov, D. Rustamova","doi":"10.26739/2181-9696-2021-2-5","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-2-5","url":null,"abstract":"This article provides information and recommendations on the safety of hydraulic structures and the prevention of emergency situations.Constant monitoring of the technical condition of the structures and improving the necessary skills of the actors allowed us to anticipate possible emergencies. A great danger is the destruction of dams or dams of large reservoirs located within the borders of these settlements, in which there is a rapid flooding of nearby territories with great material and human losses. Therefore, preventive measures to prevent catastrophic events are of paramount importance.Keywords:hydraulic structures, hydrological safety, accident hazard analysis, flow wave, dam, boundary, drainage, head, reservoir","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"24 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74609889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-28DOI: 10.26739/2181-9696-2021-2-7
Kh.S. Usmanov, M. Gapparova
The article presents the test results of a cotton cleanerwith a vertical arrangement of sections for cleaning from fine litter. The technological and qualitative comparative indicators of the existing and proposed technologies have been obtained, which shows a significant advantage of the proposed technology for cleaning cotton from trash impurities.Key words: small trash impurities, vertical method, technology, unit, quality indicators, fiber, energy-saving, resource-saving
{"title":"RESULTS OF PRODUCTION TESTS OF A COTTON CLEANING UNIT WITH A VERTICAL ARRANGEMENT OF FINE LITTER PURIFICATION SECTIONS","authors":"Kh.S. Usmanov, M. Gapparova","doi":"10.26739/2181-9696-2021-2-7","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-2-7","url":null,"abstract":"The article presents the test results of a cotton cleanerwith a vertical arrangement of sections for cleaning from fine litter. The technological and qualitative comparative indicators of the existing and proposed technologies have been obtained, which shows a significant advantage of the proposed technology for cleaning cotton from trash impurities.Key words: small trash impurities, vertical method, technology, unit, quality indicators, fiber, energy-saving, resource-saving","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"17 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78032056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-28DOI: 10.26739/2181-9696-2021-2-9
Ф.Н. Сирожиддинов, Х.С. Усманов, К.Э. Шерназаров
This article analyzes the process of cleaning cotton from small trash impurities and the requirements for each equipment, the influence of cotton loosening in the cotton cleaning zone and factors affecting its efficiency, studied the factors affecting the performance of a modernized cotton cleaner, where cotton moves along the pegs and mesh surface vertically and parallel.Key words:cotton, small trash impurities, peg drum, mesh surface, cleaner, zone, vibration, moisture, productivity, testing.
{"title":"ANALYSIS OF FACTORS AFFECTING THE PERFORMANCE OF THE VERTICAL COTTON CLEANER","authors":"Ф.Н. Сирожиддинов, Х.С. Усманов, К.Э. Шерназаров","doi":"10.26739/2181-9696-2021-2-9","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-2-9","url":null,"abstract":"This article analyzes the process of cleaning cotton from small trash impurities and the requirements for each equipment, the influence of cotton loosening in the cotton cleaning zone and factors affecting its efficiency, studied the factors affecting the performance of a modernized cotton cleaner, where cotton moves along the pegs and mesh surface vertically and parallel.Key words:cotton, small trash impurities, peg drum, mesh surface, cleaner, zone, vibration, moisture, productivity, testing.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"44 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80944824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-28DOI: 10.26739/2181-9696-2021-2-1
S. Nosirova, D. Rustamova, M. Egamova
In this research work, practical experiments were conducted to use energy-saving materials in the design of residential buildings being built in a new type in the Republic, as well as the use of materials that support energy conservation in buildings, are rough and accessible to the public, as well as in the construction of houses using building materials that correspond to the use of such building materials for external enclosing structures, it is possible to increase the energy efficiency of buildings.Keywords:external fencing structure, thermal protection, energy efficiency, material, need, boundary, project, economy
{"title":"ENERGY-SAVING HOMES-THE MAIN MOTTO OF UZBEKISTAN IN RECENT YEARS","authors":"S. Nosirova, D. Rustamova, M. Egamova","doi":"10.26739/2181-9696-2021-2-1","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-2-1","url":null,"abstract":"In this research work, practical experiments were conducted to use energy-saving materials in the design of residential buildings being built in a new type in the Republic, as well as the use of materials that support energy conservation in buildings, are rough and accessible to the public, as well as in the construction of houses using building materials that correspond to the use of such building materials for external enclosing structures, it is possible to increase the energy efficiency of buildings.Keywords:external fencing structure, thermal protection, energy efficiency, material, need, boundary, project, economy","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"2 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76315360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-28DOI: 10.26739/2181-9696-2021-2-3
Oybek Goyibov, Shaxram Xaydarov
This article provides research on the demand for energy and heat supply in buildings and structures,as well as provides information on the use of energy savings in new buildings being restored today. Studies were also conducted to reduce the problems associated with the construction of energy-efficient exterior walls and their solutions, as well as energy consumption in buildings, and the results of the studies were noted.Keywords:Architecture, Environment, Sustainable development, Buildings and structures, Lighting, Society, process, climate, economical, external, wall, consumable, solution, load, reserve, microclimate
{"title":"USE OF ENERGY SAVING IN BUILDINGS AND STRUCTURES","authors":"Oybek Goyibov, Shaxram Xaydarov","doi":"10.26739/2181-9696-2021-2-3","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-2-3","url":null,"abstract":"This article provides research on the demand for energy and heat supply in buildings and structures,as well as provides information on the use of energy savings in new buildings being restored today. Studies were also conducted to reduce the problems associated with the construction of energy-efficient exterior walls and their solutions, as well as energy consumption in buildings, and the results of the studies were noted.Keywords:Architecture, Environment, Sustainable development, Buildings and structures, Lighting, Society, process, climate, economical, external, wall, consumable, solution, load, reserve, microclimate","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"7 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81190316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-30DOI: 10.26739/2181-9696-2021-1-4
Sherkul Xakimov, Robiya Tuguzbaeva
The article provides information on the properties of wool harvested in the Republic of Uzbekistan. The natural properties of wool, its thickness and length are analyzed. The article describes the process of dividing raw wool into classes and grades when sending wool from processing enterprises to primary processing enterprises. The classification of woolen raw materialsby classes and varieties is given. The main supplier of raw materials for the wool industry is animal husbandry. Uzbekistan has a number of opportunities, geographic and economic factors for the development of this industry. On the basis of organizing the processing of wool fiber, it will be possible to create new jobs
{"title":"RAW WOOL PREPARATION IN UZBEKISTAN","authors":"Sherkul Xakimov, Robiya Tuguzbaeva","doi":"10.26739/2181-9696-2021-1-4","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-1-4","url":null,"abstract":"The article provides information on the properties of wool harvested in the Republic of Uzbekistan. The natural properties of wool, its thickness and length are analyzed. The article describes the process of dividing raw wool into classes and grades when sending wool from processing enterprises to primary processing enterprises. The classification of woolen raw materialsby classes and varieties is given. The main supplier of raw materials for the wool industry is animal husbandry. Uzbekistan has a number of opportunities, geographic and economic factors for the development of this industry. On the basis of organizing the processing of wool fiber, it will be possible to create new jobs","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"84 7 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83228334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-30DOI: 10.26739/2181-9696-2021-1-6
M. Tsukanov
The article discusses the possibilities of solving the problem of using connected petroleum gas using GTL technologies. The most important difference between hydrocarbon products of Fisher-Tropsh synthesis and petroleum products is that they do not contain sulfur, nitrogen, and in some cases aromatic compounds, which determines their environmental importance. Synthetic oil is a mixture of normal and isostrotic hydrocarbons C5-C19used for processing in paraffin and motor fuels, as a rawmaterial for the chemical and petrochemical industries, or as a commercial product.Key words:synthesis gas, utilization, GTL technologies, Euro-5, synthetic fuel, reactor, torch, catalyst
{"title":"MODERN ENVIRONMENTAL REQUIREMENTS FOR SYNTHETIC FUEL","authors":"M. Tsukanov","doi":"10.26739/2181-9696-2021-1-6","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-1-6","url":null,"abstract":"The article discusses the possibilities of solving the problem of using connected petroleum gas using GTL technologies. The most important difference between hydrocarbon products of Fisher-Tropsh synthesis and petroleum products is that they do not contain sulfur, nitrogen, and in some cases aromatic compounds, which determines their environmental importance. Synthetic oil is a mixture of normal and isostrotic hydrocarbons C5-C19used for processing in paraffin and motor fuels, as a rawmaterial for the chemical and petrochemical industries, or as a commercial product.Key words:synthesis gas, utilization, GTL technologies, Euro-5, synthetic fuel, reactor, torch, catalyst","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"87 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74234300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-30DOI: 10.26739/2181-9696-2021-1-7
M. Shoumarova, T. Abdillaev, Sh A Yusupov
In order for the use of the vertical-spindle cotton picker, created in Uzbekistan, to be economically effective, it is necessary, first of all, to increase its completeness of harvest. This indicator depends on many factors. However, the most important factor is that the spindle friction drive function is inadequate. Friction forces between the friction drive belts and the spindle roller determine its tagging capacity. The magnitude of the friction force depends on the pressure of the belts on the roller, which in turn depends on the tension of the drive belts. The article analyzes how much the tension of the drive belts in economic conditions meets the requirements.Key words:completeness of cotton picking by the apparatus; friction drive; belt tension; traction ability; direction and magnitude of the absolute speed of the spindle tooth; moment of power; variability of the angular speed of the spindle; gripping power of the tooth
{"title":"POSSIBILITY TO ENSURE THE TECHNICAL EFFICIENCY OF THE VERTICAL SPINDLE COTTON PICKER","authors":"M. Shoumarova, T. Abdillaev, Sh A Yusupov","doi":"10.26739/2181-9696-2021-1-7","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-1-7","url":null,"abstract":"In order for the use of the vertical-spindle cotton picker, created in Uzbekistan, to be economically effective, it is necessary, first of all, to increase its completeness of harvest. This indicator depends on many factors. However, the most important factor is that the spindle friction drive function is inadequate. Friction forces between the friction drive belts and the spindle roller determine its tagging capacity. The magnitude of the friction force depends on the pressure of the belts on the roller, which in turn depends on the tension of the drive belts. The article analyzes how much the tension of the drive belts in economic conditions meets the requirements.Key words:completeness of cotton picking by the apparatus; friction drive; belt tension; traction ability; direction and magnitude of the absolute speed of the spindle tooth; moment of power; variability of the angular speed of the spindle; gripping power of the tooth","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"281 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76253909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-30DOI: 10.26739/2181-9696-2021-1-5
Nafisa Saidho’jaeva
The article deals with the calculation of the drive and chain transmission of the newly created mechanized drying plant for drying melon slices. The essence of the utility model: the machine contains a horizontal tunnel chamber, inside which is mounted a chain conveyor with driving and driven sprockets, load-carrying elements, the IR emitters with reflectors on top of the camera mounted electric air heater, fan, an annular heat exchanger equipped with inlet and outlet nozzles of the drying agent. On the branches of the conveyor chain, lodgments with folding clamps are mounted, on which load-bearing elements are fixed, which are used as wooden poles. The calculation of the drive and chain transmission of the drying plant conveyor was carried out according to the existing method according to the scheme shown in the figure. Thus, the main parameters of the drive and chain transmission parts of the mechanized chamber-chain drying plant for drying melon fruits were determined by calculation
{"title":"CALCULATION OF THE CHAIN DRIVE OF A MECHANIZED CHAMBER-CHAIN DRYING PLANT FOR DRYING MELON FRUITS","authors":"Nafisa Saidho’jaeva","doi":"10.26739/2181-9696-2021-1-5","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-1-5","url":null,"abstract":"The article deals with the calculation of the drive and chain transmission of the newly created mechanized drying plant for drying melon slices. The essence of the utility model: the machine contains a horizontal tunnel chamber, inside which is mounted a chain conveyor with driving and driven sprockets, load-carrying elements, the IR emitters with reflectors on top of the camera mounted electric air heater, fan, an annular heat exchanger equipped with inlet and outlet nozzles of the drying agent. On the branches of the conveyor chain, lodgments with folding clamps are mounted, on which load-bearing elements are fixed, which are used as wooden poles. The calculation of the drive and chain transmission of the drying plant conveyor was carried out according to the existing method according to the scheme shown in the figure. Thus, the main parameters of the drive and chain transmission parts of the mechanized chamber-chain drying plant for drying melon fruits were determined by calculation","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"35 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73281569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-30DOI: 10.26739/2181-9696-2021-1-9
Hikmatullo Khaldarov
This research work is devoted to the development and creation of a mathematical model of the learning process based on ergonomics, to study the quality of education in the acquisition of knowledge. And also one of the types of qualitative indicators of the theory of sensitivityand roughness to the used parameters of different types of technical means is proposed, the process, which is described by a system of first-order differential equations, and its function is determined using partial derivatives.Key words:ergonomics, mathematical modeling of the learning process, quality of teaching of educational systems, mathematical research methods, technical teaching aids
{"title":"RESEARCH OF SENSITIVITY TO EXTERNAL PARAMETERS OF THE LEARNING PROCESS WITH THE HELP OF ERGONOMICS IN THE ACQUISITION OF KNOWLEDGE","authors":"Hikmatullo Khaldarov","doi":"10.26739/2181-9696-2021-1-9","DOIUrl":"https://doi.org/10.26739/2181-9696-2021-1-9","url":null,"abstract":"This research work is devoted to the development and creation of a mathematical model of the learning process based on ergonomics, to study the quality of education in the acquisition of knowledge. And also one of the types of qualitative indicators of the theory of sensitivityand roughness to the used parameters of different types of technical means is proposed, the process, which is described by a system of first-order differential equations, and its function is determined using partial derivatives.Key words:ergonomics, mathematical modeling of the learning process, quality of teaching of educational systems, mathematical research methods, technical teaching aids","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":"65 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74404789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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