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Evaluation Of The Thickness Of Vacuum Metal And Semiconductor Coatings Using Computer Programs, Bahrom Igamov, Ilkhom Bekpulatov, Aleksey Kamardin, Tulkun Kamilov, Ilhom Turapov, D Igamova Dec 2021

Evaluation Of The Thickness Of Vacuum Metal And Semiconductor Coatings Using Computer Programs, Bahrom Igamov, Ilkhom Bekpulatov, Aleksey Kamardin, Tulkun Kamilov, Ilhom Turapov, D Igamova

Technical science and innovation

Comparative studies of the thickness of coatings of such metals as Cu, Ag, Cr, Co, and also Mn4 Si7 on polished substrates made of Si, Si O2 / Si structure, ST - 50 glass ceramic, mica were carried out. The coatings were deposited in vacuum using thermal evaporation and magnetron sputtering. The thickness and uniformity of deposited coatings on rotating substrates are estimated by optical measurements and computer simulation. Mathematical models for the formation of coatings on flat substrates have been developed. The possibility of the optimal position of the substrate for the formation of functional coatings uniform in thickness …


Imitation Models Of The Railway Organization For Railway Transport Flows, J Usmonov, T Djuraev Dec 2021

Imitation Models Of The Railway Organization For Railway Transport Flows, J Usmonov, T Djuraev

Technical science and innovation

Considered the questions of solving the problem of optimization of cargo traffic management in the railway transport throughout the logistics chain, organizing the formation and implementation of cargo loading plans that do not allow exceeding the maximum and reduce the minimum levels of availability of a particular cargo on the destination road. And also the article justifies the solution of the problem of finding the maximum flow in the railway network, it is noted that in any transport network the maximum flow is equal to the minimum capacity. If the flow is maximal, then there is a section whose transmission …


Protection Of Transport Structures From Natural Emergencies, Shavkat Х. Abduazimov, Ravshan S. Razikov, Gani A. Kurbanov Sep 2021

Protection Of Transport Structures From Natural Emergencies, Shavkat Х. Abduazimov, Ravshan S. Razikov, Gani A. Kurbanov

Technical science and innovation

In the mountainous and foothill areas of the republic in spring and late autumn, heavy rains and floods cause landslides on the slopes, landslides as a result of coagulation of most of the land. At the same time, careless grazing of livestock on the slopes, felling of trees in the foothills, as a result of strong floods, the water flow on the slopes flows downhill, washing away all the debris, rocks and sand, endangering the movement of passenger and freight trains. . This article aims to protect against the above-mentioned situations, to ensure the safety of transport facilities. At the …


Analysis And Selection Of Methods And Sensors For Controlling The Width Of The Working Slot Of The Harvesting Devic Cp., E Uljaev, U M. Udabydullaev, A A. Abdulkhamidov, S M. Erkinov Master Sep 2021

Analysis And Selection Of Methods And Sensors For Controlling The Width Of The Working Slot Of The Harvesting Devic Cp., E Uljaev, U M. Udabydullaev, A A. Abdulkhamidov, S M. Erkinov Master

Technical science and innovation

A review and analysis of known works on the automation of control and regulation-monitoring of the width of the working slots of the harvesting apparatus (НA) of the cotton harvester, in particular, the automation of control and regulation of working units, which determines the indicators of the quality of the harvest and the productivity of the cotton harvester, is carried out. It has been substantiated that in order to increase the efficiency of the functioning of the cotton picker, automatic control and management systems are needed that perform the functions of information-measuring and control systems that perform horizontal and vertical …


Filtering Of The Magnetizing Current And Reproduction Of The Primary Voltage Of The Measuring Two-Wrinded Voltage Transformers, A G. Saidkhodjaev, V K. Vanin, M G. Popov, L A. Bainazarova Jul 2021

Filtering Of The Magnetizing Current And Reproduction Of The Primary Voltage Of The Measuring Two-Wrinded Voltage Transformers, A G. Saidkhodjaev, V K. Vanin, M G. Popov, L A. Bainazarova

Technical science and innovation

The paper studies a qualitatively new way to reduce the measurement error of phase voltages in solving the problem of filtering the magnetization current and the reproduction of the primary voltage signals of two-winding measuring transformers. Errors of voltage measuring transformers in these transient and stationary processes are primarily due to the nonlinearity of the magnetization characteristics of the electrical steel cores and, in addition, the active resistance of the windings, the load and their inductances, and in some cases, and capacity. In fact, errors are methodical and in many practical applications limit the use of various transformers because of …


Design Of Grain Moisture Control Devices For Flour Mills, Z M. Mukimov, P I. Kalandarov, O S. Logunova Jul 2021

Design Of Grain Moisture Control Devices For Flour Mills, Z M. Mukimov, P I. Kalandarov, O S. Logunova

Technical science and innovation

The article reports the results that occur in managing the dehulling process of output, which is the main process of processing grain. The study of the technical thawing processes was carried out the key factors influencing the consistency of the manufactured target product, where the hydrothermal treatment of the grain causes the initial properties of the grain to be altered. And due to the effects of moisture, temperature, as well as thawing decreases, wheat grain vitreousness, the degree of endosperm loosening increases, there is a redistribution of chemicals in the anatomical parts of the grain under the influence of developing …


Assessing The Software Reliability Of The Process Control Systems, Kh S. Turaev, N A. Yusupbekov, V B. Tarasov Jun 2021

Assessing The Software Reliability Of The Process Control Systems, Kh S. Turaev, N A. Yusupbekov, V B. Tarasov

Technical science and innovation

Methods of increasing the reliability of components and assemblies of control systems for technological processes and production, as well as methods of using fault-tolerant architecture and redundancy are analyzed. A methodology for assessing the reliability of software (SW) of an automatic control system for technological processes and production is proposed. A mathematical model for assessing the reliability of software is obtained by extending methods for assessing the reliability of hardware to software, taking into account the specifics of the latter. In this case, reliability is understood as the faultlessness of the program, and the main focus is on testing and …


The Concept Of Force-Moment Sensing Of Multi-Position Mechatronic Modules Of Intelligent Robots, Nazarov Khayriddin Nuritdinovich, Temurbek Omonboyevich Rakhimov Jun 2021

The Concept Of Force-Moment Sensing Of Multi-Position Mechatronic Modules Of Intelligent Robots, Nazarov Khayriddin Nuritdinovich, Temurbek Omonboyevich Rakhimov

Technical science and innovation

The concept of force-moment sensing of multiposition mechatronic modules (MMM) of intelligent robots and robotic systems is considered. In modern intelligent mechatronic modules, the use of force-torque sensing is focused on expanding their functionality in the automation of various technological operations. In the developed intelligent multi-position mechatronic module of motion, its control loop includes a force-torque system (FTS) designed to measure the components of the main vector of forces and moments acting on the gripper or tool of the mechatronic module and form a logical or continuous control action on the actuator in projections on the associated him a coordinate …


Review-Analysis Of Existing Types Of Adcs With Their Subsequent Selection For Use In Fine Substance Obtaining Systems, O Zaripov, N Aminov Mar 2021

Review-Analysis Of Existing Types Of Adcs With Their Subsequent Selection For Use In Fine Substance Obtaining Systems, O Zaripov, N Aminov

Technical science and innovation

The paper draws attention to the issue of global climate change on the planet. This process is influenced by the burning of natural resources. Thus, nanotechnology is seen as a possible solution to this issue. The term "nanotechnology" is considered in the perspective of commencing and applying novel materials, devices and systems. Their structure is varied and managed in nanometer range down to atoms, molecules and supramolecular formations. It is shown that the number of atoms in the bulk elements of such structures becomes close to A number of atoms on the surface of these elements. Due to the high …


Review-Analysis Of Existing Types Of Adcs With Their Subsequent Selection For Use In Fine Substance Obtaining Systems, Odiljon O. Zaripov, K Abidov Mar 2021

Review-Analysis Of Existing Types Of Adcs With Their Subsequent Selection For Use In Fine Substance Obtaining Systems, Odiljon O. Zaripov, K Abidov

Technical science and innovation

The paper draws attention to the issue of global climate change on the planet. This process is influenced by the burning of natural resources. Thus, nanotechnology is seen as a possible solution to this issue. The term "nanotechnology" is considered in the perspective of commencing and applying novel materials, devices and systems. Their structure is varied and managed in nanometer range down to atoms, molecules and supramolecular formations. It is shown that the number of atoms in the bulk elements of such structures becomes close to A number of atoms on the surface of these elements. Due to the high …


Algorithm For Primary Data Reliability Increase In The Commodity Description Classification System, J Sevinov, U Khamroyev, G Nashvandov Mar 2021

Algorithm For Primary Data Reliability Increase In The Commodity Description Classification System, J Sevinov, U Khamroyev, G Nashvandov

Technical science and innovation

One of the important issues in customs practice is to improve the classification criteria on the basis of the Commodity Nomenclature of Foreign Economic Activity (CN FEA) of the Republic of Uzbekistan, based on the characteristics of the newly modified vehicles. To date, one of the most pressing issues in foreign economic activity (FEA) is the automation of physical and electronic data on goods movement (s) in the customs procedures of import and export, the classification of the vehicle parameters imported and exported to the territory of the Republic of Uzbekistan. In the course of our research, the system has …