Principles Of Eliminating The Impact Of Disturbances On Integrated Information And Analytical Systems,
2021
Tashkent State Technical University Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: o.zaripov@edu.uz, Phone: +998-71-246-92-36;
Principles Of Eliminating The Impact Of Disturbances On Integrated Information And Analytical Systems, Orifjon Olimovich Zaripov, Umidjon Sharabidinovich Hamrakulov, Fatima Faxritdinovna Isxakova
Chemical Technology, Control and Management
Today, production management using integrated information and analytical systems and their integration with the elements of Industry 4.0 is considered one of the most pressing problems in all areas of production. The correct formation of the structure of information systems in their development contributes to the formation of elements of Industry 4.0 and their further full and high-quality integration into other areas. When implementing these processes, one of the most important steps is to reduce the impact of disturbances on integrated information and analytical systems. Taking into account the above, the article considers mathematical models of the principles of eliminating …
Main Stages Of Automated System Of Processes For Determining And Ensuring Functional And Parametric Compatibility Of Production And Technological Systems,
2021
Tashkent State Technical University Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: websarvar@gmail.com, Phone:+998-90-331-71-51;
Main Stages Of Automated System Of Processes For Determining And Ensuring Functional And Parametric Compatibility Of Production And Technological Systems, Sarvar Botir Ugli Nabiyev
Chemical Technology, Control and Management
This article presents the main stages of the development of an automated system of processes for determining and ensuring functional and parametric compatibility (FPC) of components of production and technological systems (PTS), in particular production and technological modules (PTM) of machine-building production, respectively, based on the analysis and systematization of technological zones of loading of the main technological equipment (MTE) and the construction of coating surfaces, the main parameters of industrial robots and storage systems (SS), determination and mathematical formalization of coating surfaces and guiding planes of MTE loading zones, formation of types of analytical dependences of FPC PTM functions, …
Mathematic Simulation Of Glass Melting Process In Glass Production,
2021
professsor. Tashkent State Technical University named after Islam Karimov. 100095, university str., 2, tashkent, Republic of Uzbekistan, E-mail: shukhrat.gulyamov@mail.ru, Phone:+998-94-424-15-32;
Mathematic Simulation Of Glass Melting Process In Glass Production, Shuhrat Manapovich Gulyamov, Azamat Toirovich Rajabov, Utkir Uktam Ugli Kholmanov
Chemical Technology, Control and Management
A systematic analysis of the technological process of glass melting as an object of automatic control and management has been carried out. As an object of automatic control with distributed parameters, the mathematical description of the glassmaking furnace operation has been developed (considering the main phenomenological features of the technological mode of glassmaking).In this paper, a mathematical description of charge melting process, additional heating by electric current, bubbling, thermal conductivity and heat fluxes during the processing of molten glass have been generated. Initial conditions and simplifying assumptions have been derived. The model is based on the equations of continuity, momentum …
Development And Implementation Of Two-Dimensional Fault-Tolerant Programmable Logical Controllers,
2021
professor, Tashkent State Technical University Named After Islam Karimov, University street №2,Tashkent city, Republic of Uzbekistan, E-mail:abek71@mail.ru, Phone:+998-91-135-18-02;
Development And Implementation Of Two-Dimensional Fault-Tolerant Programmable Logical Controllers, Azizbek Nodirbekovich Yusupbekov, Nodirjon Turgunboy Ugli Tulaganov, Khurshid Salim Ugli Turaev
Chemical Technology, Control and Management
It has been revealed that a significant part of industrial control systems designed for technological facilities with more than one input and one output and the most widespread are objects with two inputs and two outputs.The article describes the programming environment for fault-tolerant two-dimensional control systems using PID controller, which software is implemented in an environment for programmable logic controllers (PLC).An experimental testing system has been implemented and software settings and regulator settings have been considered. Real-time PID controllers and filters have been implemented. It has been implemented a variation of the control system software with object imitation.
Errors Of Universal Contactless Converters Of Monitoring And Control Systems From External Magnetic Fields,
2021
Tashkent institute of irrigation and agricultural mechanization engineers Address: 39, Qori Niyaziy str., 100000, Tashkent city, Republic of Uzbekistan E-mail: 1a.plakhtiev@mail.ru, phone: + 998-90-943-59-25;
Errors Of Universal Contactless Converters Of Monitoring And Control Systems From External Magnetic Fields, A.M Plakhtiev, Gayratjon Gaziev, Yahyojon Meliboyev, Odil Doniyorov
Chemical Technology, Control and Management
In communication and communication devices, power equipment, relay protection and automation terminals, in the electric power industry of "smart" cities and homes, in industry, in railway transport, microprocessor-based relay protection and automation devices, distributed generation installations, including renewable energy sources, and electricity storage, as well as "intelligent" automated information and measurement systems are beginning to be used. Contactless converters of direct and alternating currents of control and control systems are widely used in them. Their disadvantages are a narrow range of controlled currents, large dimensions and weight. Therefore, it is important to eliminate them. The paper discusses the general principles …
Algorithms Of System Synthesis For Stabilizing Uncertain Dynamic Objects,
2021
Associate Professor, Department of Information Processing Systems and Control, Tashkent State Technical University, Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: uktammamirov@gmail.com, Phone: (90) 900-56-25).
Algorithms Of System Synthesis For Stabilizing Uncertain Dynamic Objects, Uktam Farkhodovich Mamirov
Chemical Technology, Control and Management
The article deals with the formation of stable algorithms for the system synthesis for the stabilizing uncertain dynamic objects based on the method of local optimization in the presence of approximate mathematical models. The article analyzes the issues of building adaptive control systems using the concept of roughness, taking into account the assessment of the maximum allowable discrepancy between the object and its model. Some of the most constructive algorithms for determining pseudo-inverse matrices are given. When calculating the pseudo-inverse matrix of the control object, modified QR decomposition algorithms are used, obtained by deleting or assigning a column. The obtained …
Economic Feasibility Of A Methanol To Dimethyl Ether Production Process To Avoid Contract Failure Shortfalls From The Covid-19 Pandemic,
2021
University of Mississippi
Economic Feasibility Of A Methanol To Dimethyl Ether Production Process To Avoid Contract Failure Shortfalls From The Covid-19 Pandemic, Jacob Noll, Robert Wasson, Harrison Mckinnis
Honors Theses
Our team entered the 2021 AVEVA Academic Competition, where teams of undergraduate senior chemical engineering students competed across the country. The competition was composed of two parts: the base case design and the optimization of a chemical process. As part of the competition, our team is acting as the Engineering team for a fictional company that has given us this project. Due to COVID-19, our methanol producing company has lost a contract with a customer, leaving 23,000 tonnes/yr of unclaimed methanol. We have two choices with this methanol: either sell the methanol on the market at the spot price for …
Development Of An Integrated Salt Cartridge-Reverse Electrodialysis (Red) Device To Increase Electrolyte Concentrations Of Human Blood Flow To Power Biomedical Devices,
2021
University of Arkansas, Fayetteville
Development Of An Integrated Salt Cartridge-Reverse Electrodialysis (Red) Device To Increase Electrolyte Concentrations Of Human Blood Flow To Power Biomedical Devices, Caroline Campbell
Chemical Engineering Undergraduate Honors Theses
Emerging technologies in nanotechnology and biomedical sciences have led to an increase in biomedical implantable devices including cardiac pacemakers, artificial organs, drug pumps, and sensors. These devices require continuous stable and reliable power to operate, which creates the demand for the need to find a safe, reliable, and stable power source. A promising avenue for a power source for these devices is a miniaturized reverse electrodialysis (RED) biopower cell design that utilizes the salinity differences between bloodstreams that flow inside the human body. Initial results of the RED system demonstrate that higher gradient salinity differences between streams lead to a …
Machine Learning Representations For Optimization Of Process Systems,
2021
University of Arkansas, Fayetteville
Machine Learning Representations For Optimization Of Process Systems, Logan Watts
Chemical Engineering Undergraduate Honors Theses
The optimal operation of chemical processes provides the foundation for optimization problems to determine the most effective way to operate or design a given process. Chemical processes can be represented as nonlinear systems of equations with decision variables, resulting in a problem that can be solved through nonlinear solvers. The downfalls of nonlinear solvers create the need for improved methods of finding globally optimal solutions to the design or operation of a chemical process. The project will seek to evaluate the use of artificial neural networks to approximate nonlinear systems of equations for the purpose of optimizing chemical processes. The …
Thorium Dioxide Extraction From Monazite Ore,
2021
University of Tennessee, Knoxville
Thorium Dioxide Extraction From Monazite Ore, Katherine Glass
Chancellor’s Honors Program Projects
No abstract provided.
Economic Feasibility Of Mixed Plastic Waste Pyrolysis Using Twin Reactor System In Northwest Arkansas,
2021
University of Arkansas, Fayetteville
Economic Feasibility Of Mixed Plastic Waste Pyrolysis Using Twin Reactor System In Northwest Arkansas, Carol Rogers, Patricia Means, Renato Gonzalez, Kaida Sheets, Hayden Townsend
Chemical Engineering Undergraduate Honors Theses
Plastic waste generation is increasing at an unsustainable rate while recycling solutions remain stagnant. As a chemical means of recycling, mixed plastic waste pyrolysis can generate synthetic oil appropriate for use as fuel in power generation from plastic waste that otherwise accumulates in landfills. With the scaling of a commercial plastic pyrolysis process in Northwest Arkansas (NWA) modeled after an operational sawdust pyrolysis unit in Huntsville, Arkansas, economic analysis resulted in 26.3% internal rate of return. Therefore, construction of a commercial mixed plastic-to-fuel pyrolysis plant is economically justified and should be pursued. To effectively implement the proposed design, NWA must …
Design, Analysis, And Optimization Of A Process To Produce Dimethyl Ether From Methanol,
2021
University of Mississippi
Design, Analysis, And Optimization Of A Process To Produce Dimethyl Ether From Methanol, Thomas Mathwig
Honors Theses
The company that the engineering team works for is facing a contract loss with one of its customers of methanol. To avoid economic losses, a process has been proposed for converting the unused methanol to dimethyl ether (DME) through a dehydration reaction. After a preliminary simulation of the base case and optimization of the distillation column, an Equivalent Annual Operating Cost (EAOC) of $140,000 was calculated for the column. The EAOC was the sum of the annualized capital investment and the annual operating cost. Determining the process to be worth pursuing, a Toller was brought in to provide rental equipment …
Diagnóstico Y Evaluación Ambiental De Los Residuos Sólidos En Plazas De Mercado De Montería Y Propuestas De Aprovechamiento,
2021
Universidad de La Salle, Bogotá
Diagnóstico Y Evaluación Ambiental De Los Residuos Sólidos En Plazas De Mercado De Montería Y Propuestas De Aprovechamiento, Camilo Andrés Hernández Almentero
Ingeniería Ambiental y Sanitaria
En este trabajo se busca implementar una propuesta de aprovechamiento de residuos por medio del cual se puedan dar un uso responsable a los residuos generados en la plaza de mercado sur de Montería-Córdoba, con ayuda de la recopilación de datos en políticas de gestión y manejo de residuos sólidos del municipio y de la empresa prestadora del servicio de aseo municipal. De manera análoga, se estarán realizando diversas visitas para observar y tener un mayor enfoque del entorno para poder definir de manera correcta las problemáticas de acumulación de residuos orgánicos que se puedan estar presentando. Se busca realizar …
To Increasing The Absorption Area Of Column Apparatus With Tubular Lattice Nozzles,
2021
Doctor of technical scienses, professor, Tashkent Chemical Technological Institute, Tashkent, Republic of Uzbekistan, Phone:+998974009701;
To Increasing The Absorption Area Of Column Apparatus With Tubular Lattice Nozzles, Nurmukhamedov Habibulla Sagdullaevich, Batir Babatulaev, Elbek Mavlanov, Samukdjan Nigmadjanov
Chemical Technology, Control and Management
The problem of creating a compact refrigeration zone for absorbers with tubular-lattice nozzles made of pipes with spiral turbulators is discussed. Research has been carried out on the influence of the groove depth h/D and α/αгл of the step of their placement t/D on the degree of heat transfer intensification α/αо in the transition region of the gas-liquid flow. An intensification of heat transfer has been achieved only by increasing the groove depth from h/D = 0,003 to 0,095 and the optimal pitch of the grooves, the intensity of heat transfer is 2 or more times. Research has …
Development Of A New Technology For Obtaining The Substance Of The Drug Acetamizole,
2021
Academy of Sciences Republic of Uzbekistan Acad. S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Bd. 77 Mirzo Ulugbek st., 100170, Tashkent. E-mail: 1sarvar-saidov-1989@bk.ru
Development Of A New Technology For Obtaining The Substance Of The Drug Acetamizole, Sarvar Saidov, Asqar Abdurazakov, Rixsibay Karimov, Mavluda Baltabayeva
Chemical Technology, Control and Management
The main goal of this work is to obtain a preparation of acetamizole based on local raw materials by a more convenient method of acylation of 2-methoxycarbonylaminobenzimidazole with glacial acetic acid, this synthesis method is proposed for the first time. On the basis of the conducted experiments, favorable conditions for the reaction were found, the influence of the nature of the acid, the temperature, the duration of the reaction and other factors on the course of the reaction was studied, the technology was developed and implemented at the experimental production of "IHRV AN RUz". Based on experiments conducted by scientists …
Analysis Of Consistency Of Similarity Predicates To Measures Of Similarity And Advantages Of Their Application In Digital Systems For Solving Intellectual Problems,
2021
Tashkent State Technical University Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: mm.abdullaev@yandex.ru, Phone: +998 90-187-01-73
Analysis Of Consistency Of Similarity Predicates To Measures Of Similarity And Advantages Of Their Application In Digital Systems For Solving Intellectual Problems, Makhmudjon Abdullaev, Nodira Batirdjanovna Alimova
Chemical Technology, Control and Management
The results of the analysis of the correspondence of similarity predicates to similarity measures used in various metric methods used for signal classification and the feasibility of using similarity predicates in the construction of digital systems for solving intellectual problems, for which the simplification of computational operations is of no small importance, are presented. Some general and distinctive features of the similarity predicate are considered in comparison with the euclidean metric in relation to one-dimensional and two-dimensional spaces, and generalized to the case of n-dimensional metric spaces. The expediency of using methods based on the calculation of similarity predicates, which …
Methodology For Determination And Assessment Of Uncertainty Sources Of Textile Materials Total Thermal Resistance,
2021
Uzbek Agency for standardization, metrology and certification Adress: 333-a, Farobiy st., 100049, Tashkent city, Republic of Uzbekistan, E-mail: abduraufabdukayumov@gmail.com, Phone: +998-98-368-07-37
Methodology For Determination And Assessment Of Uncertainty Sources Of Textile Materials Total Thermal Resistance, Abdurauf Abdurashidovich Abdukayumov, Ortagoli Sharipovich Hakimov
Chemical Technology, Control and Management
The problems of improving of methods for determination of the total thermal resistance of textile materials are considered. A comparative analysis of the applied methods based on stationary and non-stationary heat exchange is performed. A higher accuracy of non-stationary methods based on measuring the cooling time of a heat cell with subsequent determination of the cooling rate and the total thermal resistance of the material under study is noted. A method is proposed for estimating the variance of the main values required for calculating the total thermal resistance of materials. The results of the study of the relationship between sources …
Mathematical Model Of A System For Controlling And Diagnosing The Safety State Of Oil And Gas Territory,
2021
Doctor of Technical Sciences, Professor, Department of Information Processing Systems and Management, Tashkent State Technical University. Tashkent city, Republic of Uzbekistan,Tel .: (99) 919-71-64 (m.),
Mathematical Model Of A System For Controlling And Diagnosing The Safety State Of Oil And Gas Territory, Erkin Uljaev, Utkirjon Murodillaevich Ubaydullaev, Gayrat Bakhtiyarovich Tadzhitdinov, Sherzod Kholmuminovich Eshkuvatov
Chemical Technology, Control and Management
In this article, the way of creation mathematical model of a control system and diagnostics of the security status of the oil and gas territory is considered. For performing diagnostics of the safety of a status of the oil and gas territory as a mathematical apparatus it is suggested to use a boolean algebra. The main controlled objects and their technological parameters which define safety, integrity of saving, operational carrying out monitoring status as separate objects and all oil and gas territory, prediction of the expected threats, economic social, and economic damage are selected. For the creation of a mathematical …
Estimating The Bubbling Process Of Ozone-Containing Gases In The Water,
2021
Tashkent State Agrarian University, Address:2 University st.,100110, Tashkent city, Republic of Uzbekistan Phone: +998 981017350.
Estimating The Bubbling Process Of Ozone-Containing Gases In The Water, M.P. Parpiev, А.А. Simonov, Aleksey Kamardin, Abdulaziz M. Nazarov
Chemical Technology, Control and Management
Theoretical estimates were made and significant factors of dissolution of ozone-containing gases in water during bubbling in tanks were determined. The expediency of using microbubbles for more efficient saturation of water and aqueous solutions with ozone and generation of ozone with maximum concentration is shown. It is shown that when bubbling gas in water, including ozone-containing gas, the most important indicator is the volume gas content, which determines the ratio of the volume of the gas phase to the volume of the gas-liquid mixture in the contact apparatus. In the presence of a set of bubbles in the water, the …
Calculate The Reliability Of The Bts-Bsc Network With The Reserved Line Connection,
2021
Tashkent University of Information Technologies Named after Muhammad Al-Khwarizmi, Tashkent city, Republic of Uzbekistan
Calculate The Reliability Of The Bts-Bsc Network With The Reserved Line Connection, Dilmurod Davronbekov, Utkir Karimovich Matyokubov
Chemical Technology, Control and Management
The issue of reserving communication lines between the base station and the mobile network base station controller which are considered as one system is considered. Analytical expressions have been developed for calculating the reliability of the system for various options for backing up communication lines between the base station and the base station controller. The results of research and calculations of reliability for ten different types of backup communication lines of the base station and the base station controller are presented.
