Fast Fourier Transform Analytical Expression Of Estimation Of Nosinusoidality Indicators,
2023
National Research University TIIAMME, Adrdress: 28-19, Karakamish 2/4, 100149, Tashkent, Republic of Uzbekistan, E-mail: [email protected], Phone: +998946009877;
Fast Fourier Transform Analytical Expression Of Estimation Of Nosinusoidality Indicators, Ilkhomjon Khakimovich Siddikov, Zailobiddin Urazali O’G’Li Boixanov
Chemical Technology, Control and Management
This in the article asynchronous motor is reactive power control to do and manage for from the transformer used. The main element of the current transformer is the measuring instrument, i.e. the sensitive element. Depending on the number of asynchronous motor stator blades, the measurement sensitive element is placed between the main winding and the rotor as a two-ring or three-ring. Measurement accuracy, reliability, and sensitivity increase compared to an independent measuring device. The measuring element loops are independent or connected in series . When the measurement loops are connected in series, the amount of output voltage is …
Development Of An Imitation Model Of The Vulcanization Process In The Production Of Elastomeric Composites,
2023
Yangiyer Branch of Tashkent Institute of Chemical Technology, Address: 1, Tinchlik street, Yangiyer city, Sirdarya, Republic of Uzbekistan. E-mail: [email protected], Phone: +998-94-698-7675;
Development Of An Imitation Model Of The Vulcanization Process In The Production Of Elastomeric Composites, Toshtemir Avezov, Mirxalil Agzamovich Ismailov
Chemical Technology, Control and Management
In the article, a systematic approach to the mathematical modeling of the production process of complex multi-stage elastomeric composites was considered, which allows to take into account the stoichiometric relationship of the chemical reaction in the process. Based on the chemical reaction occurring in the mixer, a kinetic model of the elastomer composites production process is proposed, which is the basis for obtaining the main functional relationship of the mathematical model for the mixer, the main quality indicator of the process. The proposed systematic approach in the form of a mathematical model based on the stoichiometric relationship and the …
Synthesis Problem Of Adaptive Control Systems For Multi-Channel And Multi-Mode Objects,
2023
Tashkent state technical university named after Islom Karimov. Address: 2 University st. 100095, Tashkent city, Republic of Uzbekistan;
Synthesis Problem Of Adaptive Control Systems For Multi-Channel And Multi-Mode Objects, Jasur Usmonovich Sevinov, Abdishukurov Maqsud O'G'Li Shavkat Mr, Nasriddin Xasanovich Bobomurodov
Chemical Technology, Control and Management
The issue of synthesis of an adaptive control system for multi-channel and multi-mode objects is considered. Development that of effective adaptive control algorithms for nonlinear dynamic systems ensure quality indicators of processes. In technological processes, it is necessary to control several parameters or several systems at the same time. For such a process control system, an adaptive control system is created. Work has been carried out on structural projects for the installation of adaptive systems. The stable requirements for the correction of adaptive control systems are seen. A review of several parametric deviation detections, based on the reference model and …
Trends In The Development And Improvement Of Glass Furnaces And Monitoring And Control Systems,
2023
Tashkent State Technical University, Adress: 100095, Republic of Uzbekistan, Tashkent, st. University, 2.
Trends In The Development And Improvement Of Glass Furnaces And Monitoring And Control Systems, N.R Yusupbekov, O'Tkir U. Xolmanov
Chemical Technology, Control and Management
The theory and practice of establishing industrial automation systems for glass furnaces and installations as they are right now are taken into consideration. Comparative analysis is based on publications over the last 20 years in the field being studied. On the basis of an analysis of the review materials, generalizations are made that form the basis for proposals aimed at modernizing and improving the technology and instrumentation of fuel combustion processes in gas-burning furnaces and installations, as well as monitoring and control systems for technological processes occurring in glass furnaces and installations.
Influence Of Metal-Coordinating Comonomers On The Coordination Structure And Binding In Magnetic Poly(Ionic Liquid)S,
2023
University of Arkansas, Fayetteville
Influence Of Metal-Coordinating Comonomers On The Coordination Structure And Binding In Magnetic Poly(Ionic Liquid)S, Kayla Foley, Lucas Condes, Keisha B. Walters
Chemical Engineering Faculty Publications and Presentations
A poly(ionic liquid) (PIL), poly(acrylamide-co-diallyl dimethylammonium chloride), was systematically complexed with Co2+, Fe3+, and Co2+/Fe3+ (mixed) at different molar equivalencies to form a series of magnetic PILs (MPILs). These novel MPILs were utilized to examine molecular structure and binding between the polymer and metal species using comprehensive spectroscopic studies in both dry and liquid states. FTIR, X-ray photoelectron, UV-vis, and Raman spectroscopies showed evidence of metal coordination of both the iron and cobalt chloride species with the acrylamide comonomer. Using AC susceptibility measurements, the MPILs were found to have magnetic properties …
Bacterial Motion And Spread In Porous Environments,
2023
New Jersey Institute of Technology
Bacterial Motion And Spread In Porous Environments, Yasser Almoteri
Dissertations
Micro-swimmers are ubiquitous in nature from soil and water to mammalian bodies and even many technological processes. Common known examples are microbes such as bacteria, micro-algae and micro-plankton, cells such as spermatozoa and organisms such as nematodes. These swimmers live and have evolved in multiplex environments and complex flows in the presence of other swimmers and types, inert particles and fibers, interfaces and non-trivial confinements and more. Understanding the locomotion and interactions of these individual micro-swimmers in such impure viscous fluids is crucial to understanding the emergent dynamics of such complex systems, and to further enabling us to control and …
Investigating The Rheological Behavior Of A Simple Yield Stress Fluid Under Shear Flows,
2023
New Jersey Institute of Technology
Investigating The Rheological Behavior Of A Simple Yield Stress Fluid Under Shear Flows, Francesco Accetta
Theses
Many soft materials display unique and complex rheological behavior characterized by a transition from a solid-like to a fluid-like state upon the application of a force that exceeds the threshold to flow, known as the yield stress. Yield stress fluids are found in a wide range of commonly encountered materials including microgels, emulsions, and foams, and have been widely studied by rheologists over the last several decades. Carbopol is a popular polymeric microgel system as it displays simple, non-thixotropic rheological behavior and is typically seen as an ideal yield stress fluid. Previous research has demonstrated the reproducible behavior of shear …
Obtaining Sweet Molasses By The Method Of Hydromechanical And Enzymatic Processing Of Grain,
2023
Tashkent state technical university named after Islom Karimov, Address: 2, University str., 100095, Tashkent, Uzbekistan.
Obtaining Sweet Molasses By The Method Of Hydromechanical And Enzymatic Processing Of Grain, Sadritdin Maxamatdinovich Turabdjanov, Kamoliddin Ahmadjonovich Mahmudov, Bexzod Alisherovich Kasimov, Kasun Dissanayake Kumara
Chemical Technology, Control and Management
Methods of hydrolysis of grains to starch under the influence of hydrodynamic and enzymatic processes are logically based. Polysaccharides derived from starchy grains are known and popular in the food industry for their thickening and stabilizing properties. To date, studies that allow for a deeper understanding of the mechanism of interaction of polysaccharide-containing products with their main components, the effect on the set of rheological, organoleptic, physico-chemical properties of food products that determine their functions are relevant.
Results Of The Study Of The Pumpkin Drying Process,
2023
Tashkent state technical university named after Islom Karimov, Address: 2, University str., 100095, Tashkent, Uzbekistan. E-mail: [email protected];
Results Of The Study Of The Pumpkin Drying Process, Jasur Esirgapovich Safarov, Shahnoza Abduvakhitovna Sultanova, Andrey Svyatoslavovich Ponasenko, Gani Toshkhujaevich Dadaev
Chemical Technology, Control and Management
The article presents the results of the study of the pumpkin drying process, comparisons with different drying models are carried out. A mathematical model for numerical analysis has been developed. Pumpkin drying rates are calculated and various drying models are investigated. 5 different drying models were used to verify the accuracy of experimental data and search for the most suitable model. The experimental data obtained for the drying air temperature of 45 °C, 55 °C and 65 °C were applied to various drying models.
Use Of Neural Networks In Intelligent Measurement Tools,
2023
Tashkent State Technical University, Address: Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan, E-mail: [email protected];
Use Of Neural Networks In Intelligent Measurement Tools, N.R Yusupbekov, Y.Sh. Avazov, Umidjon Ruziev Phd
Chemical Technology, Control and Management
The paper presents algorithms for processing the measurement signal with the possibilities of adaptation, learning and decision making. A comparative analysis of the methods of intellectual processing of measurement data is carried out. A model of a measuring instrument for determining the structure of a neural network has been developed. The problem of error reduction due to measurement noise filtering with the use of neural networks is considered. The structure of the neural network has been developed for intelligent processing of the measurement signal and ensuring the implementation of the functions of reconfiguration, calibration, self-diagnosis and self-control. A neural network …
Mathematical Model Of An Industrial Robot Built On The Basis Of Linear Motion Mechatron Modules,
2023
Tashkent state technical university named after Islom Karimov, Address: 2, University str., 100095, Tashkent, Uzbekistan. E-mail: [email protected],
Mathematical Model Of An Industrial Robot Built On The Basis Of Linear Motion Mechatron Modules, Matyokubov Nurbek Rustamovich, Rakhimov Temurbek Omonboyevich
Chemical Technology, Control and Management
The use of Industry 4.0 technologies in modern production serves to increase production efficiency. Robots and robotic complexes with innovative intelligent control are widely used in industrial production. However, studying their mechanical part, linear motion mechatronic modules and control system is a complex object. The variety and complexity of control methods and operating modes negatively affects the operator's working time and production productivity. In such cases, it is necessary to improve control methods and develop technologies used in industry, including robots and robotic manipulators, which allow to perform short movements with high accuracy and speed. In the article, the mathematical …
Application Of Evolutionary Algorithms For Optimization Of Operation Modes Of Regional Electric Power Systems,
2023
Tashkent State Technical University, Address: Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone+998-90-359-52-68;
Application Of Evolutionary Algorithms For Optimization Of Operation Modes Of Regional Electric Power Systems, Isamiddin Khakimovich Siddikov, Oksana Vitalevna Porubay
Chemical Technology, Control and Management
The paper presents the possibilities of using evolutionary algorithms to solve the problem of optimizing the operation modes of electric power facilities in the presence of constraints in the form of inequalities and equalities. The limits of constraints have a variable character, depending on the generated and consumed energy. Existing methods used for the optimization of modes are based on general principles and approaches to optimization, which usually adapt to the specifics of the problem. In electric power facilities, optimization problems have some peculiarities, among which is the presence of multiple constraints applied to both independent and dependent variables. Many …
Systematic Analysis Of Methods Of Control Of Dynamic Objects In Conditions Of Non-Measurable Disturbances,
2023
doctor of technical sciences, Associate Professor of the department “Information Processing Systems and Control” at Tashkent state technical university named after Islam Karimov, Address: 100095, University str. 2, Tashkent, Uzbekistan, E-mail: [email protected], Phone: (90) 900-56-25;
Systematic Analysis Of Methods Of Control Of Dynamic Objects In Conditions Of Non-Measurable Disturbances, Mamirov Farkhodovich Uktam, Buronov Mamurjon Ugli Bunyod
Chemical Technology, Control and Management
The article presents a systematic analysis of control methods of dynamic objects under non-measurable disturbances. It is important to study all the factors affecting the control object in order to increase the efficiency of the control system. Due to the immeasurable nature of disturbances affecting control objects, it is shown that they cause negative effects and increase the complexity of control systems in this case. In the control of dynamic objects of this type, the possibilities of control by indirect measurement of disturbances or by estimation of object position and disturbances have been explored. The use cases, shortcomings and achievements …
Development Of The Computer Model Of The Waste Water Treatment Process Using Ion-Exchange Resins In The Matlab Program,
2023
Tashkent institute of chemical technology. Address:.Navoi Street, 32, Tashkent, Uzbekistan, 100011. E-mail: [email protected], Phone: +998938032741;
Development Of The Computer Model Of The Waste Water Treatment Process Using Ion-Exchange Resins In The Matlab Program, Jaloliddin Abdurazzakovich Eshbobaev, Bakhodir Tajiddinovich Khamidov, Adham Tilovovich Norkobilov, Orifjon Sharipovich Kodirov
Chemical Technology, Control and Management
In this work, a mathematical model of industrial wastewater treatment technology was formed. First, wastewater treatment technologies were analyzed and the technology of ion-exchange resin treatment was selected. A water purification device using ion-exchange resins was made, and tested on the Kungrad soda plant and the results were obtained. According to these results, it was determined that the cleaning coefficient of the device is up to 98-99%. In this article, a mathematical model of a wastewater treatment device using ion-exchange resins was developed using the stoichiometric matrix method. After the mathematical model of the process was found, a graph of …
The Morphology Analysis Of Soil In Remote Sensing Image Processing,
2023
Digital technologies and artificial intelligence research institute, Tashkent, Uzbekistan. E-mail: [email protected];
The Morphology Analysis Of Soil In Remote Sensing Image Processing, Mirzayan Mirzaaxmedovich Kamilov, Mirzaakbar Xakkulmirzayevich Hudayberdiev, Bobomurod Mamitjonovich Tojiboev
Chemical Technology, Control and Management
This article analyzed various techniques used in satellite image processing to analyze soil morphology. Analysis of soil morphology using satellite imagery plays a crucial role in soil science research, Land Management, and environmental monitoring. It provides an economical and efficient means of studying large-scale soil variability, providing information on land sustainable use, resource management and soil conservation decisions.
Computer Training Systems For Training Engineering Personnel For Control Industrial Enterprises,
2023
Doctor of Technical Sciences, Professor of the Department of Automation of Production Processes, Tashkent State Technical University named after Islam Karimov. Address: 100095, University str. 2, Tashkent, Uzbekistan. E-mail: [email protected], Phone: +998-94-612-67-08.
Computer Training Systems For Training Engineering Personnel For Control Industrial Enterprises, Yusuf Shodiyevich Avazov, Kamola Rustamovna Abdullaeva
Chemical Technology, Control and Management
A principle has been proposed for constructing computer simulators for improving the qualifications of process control operators at industrial enterprises and for training students of higher educational institutions. The capabilities of a computer simulator that can be used as a digital assistant are revealed. Their architecture for building digital simulators is proposed. From the architecture it is clear that the computer simulator consists of two systems. The training process management system and the server of the computerized simulator are combined into a digital simulator. Simulators in this category provide student operators with the opportunity to develop skills in self-control of …
Topological Interpolation Method For Modeling Dynamic Systems,
2023
Tashkent State Technical University, Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan, E-mail: [email protected], Phone: +998-90-359-52-68;
Topological Interpolation Method For Modeling Dynamic Systems, Isamiddin Xakimovich Siddikov, Dilnoza Maxamadjanovna Umurzakova
Chemical Technology, Control and Management
The method of simulation structural-complex continuous-discrete control systems is discussed. For simulation and calculation of dynamic processes in continuous-discrete systems topological interpolation method is proposed, based on application of hybrid methods of space of state variables and interpolation of signals. The essence of the method is that the dynamics of the investigated system, considered at the final interval, is broken down into subintervals, on each of which the processes are described by linear ordinary system differential equations. The computational efficiency of the proposed method was evaluated by comparison with standard methods such as the Runge-Kutta-Merson method. The use of this …
Intellectualization Of The Process Of Monitoring Of Complex Technological Productions,
2023
Belarusian State Technological University, Minsk, Republic of Belarus, Address: 220006, Minsk, st. Sverdlov, 13a, Phone: 8 (017) 327 23 97;
Intellectualization Of The Process Of Monitoring Of Complex Technological Productions, Dmitry Semenovich Karpovich, Umidjon Abdimajitovich Ruziev
Chemical Technology, Control and Management
The article deals with the creation of intelligent monitoring systems for complex technological processes. The methods and models of the intellectualization of information processing systems are analyzed. The advantages of using intelligent measuring instruments in monitoring systems are given, which allow obtaining reliable information necessary for the effective control of complex technological processes. The issues of using intelligent measuring instruments in monitoring systems are considered. A block diagram of intelligent monitoring of signal processing of complex production processes has been proposed. An algorithm for parametric correction of intelligent measuring instruments in monitoring systems has been developed. A model of a …
Investigation Of Magnetic Circuits Of Differential Transformer Displacement Sensors,
2023
Tashkent State Transport University, Address: Temiryulchilar street, 1 st avenue 100167, Tashkent, Uzbekistan, E-mail: [email protected], Phone: +998904265341;
Investigation Of Magnetic Circuits Of Differential Transformer Displacement Sensors, Sulton Fayzullaevich Amirov, Absaid Khurramovich Sulliev, Shukhrat Azamatovich Sharapov
Chemical Technology, Control and Management
The article examines the magnetic circuits of both existing and developed differential transformer displacement sensors for large linear displacements. These circuits are characterized by a specific distribution structure of magnetic resistance parameters in long ferromagnetic cores and the magnetic capacitance between them. It is shown that in the existing sensor, the distribution of working magnetic flux along the length of the ferromagnetic cores has a nonlinear nature, resulting in a nonlinear relationship between the output signal in the form of electromotive force and the input linear displacement of the sensor. It has been established that by selecting the law of …
Prediction Using Fire Data Based On Machine Learning Algorithms,
2023
Digital technologies and Artificial intelligence development Research Institute, Tashkent, Uzbekistan. E-mail: [email protected].
Prediction Using Fire Data Based On Machine Learning Algorithms, Oybek Zokirovich Koraboshev
Chemical Technology, Control and Management
In this article, the process of real-time prediction of the dynamics of fire development in non-stationary and gas-fired areas is carried out by developing a real-time prediction method based on artificial intelligence and deep machine learning (Deep Machine Learning) algorithms. The most commonly used KNN algorithm, CVM algorithm, Random Forest algorithm and Naive Bayes algorithm were used for prediction fire situations.
