Identification Of Transition Matrix Of Controlled Objects Under Parametric Uncertainty Condition,
2020
Tashkent State Technical University Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected]
Identification Of Transition Matrix Of Controlled Objects Under Parametric Uncertainty Condition, Uktam Farkhodovich Mamirov
Chemical Technology, Control and Management
The questions of formation and construction of algorithms for identification of elements of the transition matrix of controlled objects in conditions of parametric uncertainty are considered. To identify elements of the transition matrix, we suggest using a custom model based on the type of Kalman filtration equations. Algorithms for stable calculation of a pseudo-inverse matrix using matrix decomposition are analyzed. Regular algorithms for solving argumentative problems of minimization of the identification quality criterion are given. These algorithms allow us to regularize the problem of adaptive identification of the transition matrix of an object based on regular methods for minimizing functionals …
Detection Method For “Denial Of Service” Attacks On Web Applications,
2020
State Unitary Enterprise "Centre of cyber security” Address: 10A, Kirk-Kiz street, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-97-701-05-43;
Detection Method For “Denial Of Service” Attacks On Web Applications, Azizbek Ravshonbek Ugli Ibrohimov
Chemical Technology, Control and Management
A method for detecting denial-of-service attacks on web applications based on the use of a multi-layer perceptron is considered. The main issues related to the use of the neural network are described: the process of collecting and preparing statistical data, the features of forming indicators that characterize the state of the web application, as well as the issues of training and evaluating the quality of the neural network.
Structural – Parametric Analysis And Synthesis Of Glass Furnace Condition Observer,
2020
Tashkent State Technical University Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-94-408-09-02;
Structural – Parametric Analysis And Synthesis Of Glass Furnace Condition Observer, Utkir Uktam O‘G‘Li Kholmanov
Chemical Technology, Control and Management
A modified Kalman filter of the glass cooking process is synthesized, taking into account perturbations in the form of a sequence of colored noises. The possibility of expanding this filter by noise filters to improve functioning in the presence of low-frequency disturbances is studied and a corresponding estimation scheme with additional noise filters is proposed. The results of the simulation allow us to assume that low-frequency disturbances in the glass furnace act at the input and affect the state of the control object.
Ecg Processing And Analysis Technique Based On Neural Network Learning Vector Quantization,
2020
Tashkent State Technical University, Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone: +998-93-535-17-30;
Ecg Processing And Analysis Technique Based On Neural Network Learning Vector Quantization, Talat Madievich Magrupov, Sherzod Kalandarovich Nеmatov, Yokubjon Talatovich Talatov
Chemical Technology, Control and Management
The main parameters of the electrocardiogram (ECG) were processed on the basis of the neural network apparatus. A decision support algorithm for ECG analysis using a neural network for learning vector quantization is proposed. For the study was chosen such features as the duration of QRS complex, RR interval, amplitude of R-wave and the change in the slope of ST segment and heart rate, which are five inputs to the neural network learning vector quantization. Methods of pre-processing and analysis of extraction of ECG functions based on the ECG database of a medical institution in Matlab are presented. The generalized …
Optimal Ratio Of Primary And Secondary Clarifier Characteristics In Wastewater Treatment Plants,
2020
The head of department “Energy Audit”, Bukhara Engineering Technological Institute, Bukhara, Uzbekistan, E-mail: [email protected], Phone: (+99899) 7061166;
Optimal Ratio Of Primary And Secondary Clarifier Characteristics In Wastewater Treatment Plants, Makhsud Idrisovich Makhmudov, Zafarbek Esanovich Kuziev, Siroj Sobirovich Nurov, Sanjar Siroj Ugli Sidikov
Chemical Technology, Control and Management
The issues of optimization of aerobic biological wastewater treatment processes are considered. Optimal ratios of characteristics and sizes of primary and secondary sedimentation tanks, as well as their relationship with the concentration of activated sludge by volume, are revealed. Graphical representations of the dependence of the volumes of primary, secondary and total volumes of structures on the concentration of activated sludge in cleaning processes with low and high loads are obtained. Experimental studies have shown that the concentration of activated sludge in the aeration tank and the silt index directly affect the deposition characteristics of activated sludge, in particular the …
Static Characteristics Of Thermal Humidity Converters Of Liquid Materials In Continuous Flow,
2020
Tashkent State Technical University, Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan;
Static Characteristics Of Thermal Humidity Converters Of Liquid Materials In Continuous Flow, N.I. Avezova, P.R. Ismatullaev, Paraxat Matyakubova
Chemical Technology, Control and Management
Thermal systems with distributed heat sources based on a pipeline segment with radial holes are proposed for the development of designs of thermal humidity converters for liquid materials. Across the liquid flow there are tubular arguments with cylindrical heat-sensitive elements, on the surface of which the heating element winding was wound, which significantly increased their sensitivity, speed, reliability and allowed the use of standard semiconductor heat-sensitive elements.
A Study Of Static And Dynamic Characteristics Of Multifunctional Signal Converters,
2020
Tashkent University of Information Technologies named after Muhammad al-Khwarizmi Address: 108, Amir Temur st., 100200, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-94-343-54-91
A Study Of Static And Dynamic Characteristics Of Multifunctional Signal Converters, Akmal Abdumalikov
Chemical Technology, Control and Management
The issues of continuity, accuracy, speed and reliability of signal conversion, which are the main problems of quality control and management of production processes, remain relevant. Research shows that in practice there are different signal variables, the study of which is highly formalized in a number of modeling tasks and basic classification studies, in particular transients in converters, its sources and elements requires a unified mathematical approach, that is, visual, highly formalized modeling and research based on it. The paper presents a graph model of multifunctional signal converters that provide microprocessor and electronic devices with signals in the form of …
A Study Of Security Problems In Big Data And Their Solutions,
2020
Tashkent University of Information Technologies named after Muhammad al-Khwarizmi Address: 108, Amir Temur st., 100200, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-93-508-31-23
A Study Of Security Problems In Big Data And Their Solutions, Nozima Akhmedova
Chemical Technology, Control and Management
Statistical data on information security that concerns Big Data and is the most important for enterprises are provided. Based on this data, we studied problems such as the lack of big data practices and protection, the lack of techniques for protecting big data, the lack of standards for protecting big data, the lack of regulation of big data and ecosystems, security problems in Big Data, and proposed several proposals to improve the security of systems that use this technology.
Capacity Transformer Of Coaxial And Cylindrical Form Of Humidity Meter,
2020
Doctor of technical sciences, Professor, Information processing, and control systems department at Tashkent State Technical University named after Islam Karimov, Tashkent, Uzbekistan, E-mail: [email protected];
Capacity Transformer Of Coaxial And Cylindrical Form Of Humidity Meter, Erkin Uljaev, Utkirjon Murodillaevich Ubaydullaev, Shohrux Nurali O'G'Li Narzullaev
Chemical Technology, Control and Management
The question of development and calculation of construction of a coaxial and cylindrical form of the capacity transformer of a humidity meter is considered. As basic data, the sizes and the materials ditches allowing to measure the humidity of different volumes of bulks from 5 to 50 gr are selected. As materials of a ditch, plastic are selected, and as tanks, the magnetizing materials are selected. It is briefly cited the advantages and disadvantages of ways to measure humidity and the basic dielectric characteristics of capacitive converters. The electrical replacement scheme of the proposed capacitive converter was provided and the …
Reliable Risk Assessment Method For Effective Organization Of Information Security At Enterprise,
2020
Tashkent University of Information Technologies named after Muhammad al-Khwarizmi Address: 118, Amir Temur st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-97-751-16-97
Reliable Risk Assessment Method For Effective Organization Of Information Security At Enterprise, Fayzullajon Bakhtiyorovich Botirov
Chemical Technology, Control and Management
The problems of the new industry 4.0 automation paradigm are considered and the latest technologies in the field of information and communication technologies that stimulate it are analyzed, including cyber-physical systems, cloud computing, the Internet of things and big data. Some methods of multidimensional, multi-faceted industrial representation and analysis of big data are proposed. The basics of big data processing using granular computing methods have been developed. Marked the emergence of the problem of creation of special cognitive tool for constructing artificial agents, understanding integrated intelligence enterprises. In the process of information protection at the enterprise, it is proposed to …
Analysis Of Information Security System Standards And Key Aspects Of Security Control,
2020
Tashkent University of Information Technology named after Muhammad al-Khwarizmi Address: 108, Amir Temur street, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-99-835-67-30
Analysis Of Information Security System Standards And Key Aspects Of Security Control, Abduhalil Abdujalilovich Ganiyev
Chemical Technology, Control and Management
The standards of the information security management system (IMS) are considered and the main aspects of information security management are studied, in particular the international standard ISO/IEC 27001, the Process approach to the management of IS, the stages of development of the information security management system. The measures taken for the organization of information security management systems are defined. Organizational measures include the implementation of information security management systems in the organization.
Fujio Cho Legacy Lecture Notes,
2020
Toyota Motor Corporation, Japan
Fujio Cho Legacy Lecture Notes, Fujio Cho, Kozo Saito
Institute of Research for Technology Development Textbook Gallery
The Fujio Cho legacy lecture was created in 2013 as part of UK Institute of Research for Technology Development (IR4TD)’s True Lean Systems program to assist industrial clients to transform their organizations to a True Lean organization by effectively using principles and tools of Toyota Production System (TPS). During the years 1987-1994, Cho and Saito worked together to layout the foundation of the now well-established Toyota-University of Kentucky relationship on R&D, True Lean Systems, and production engineering, housed in IR4TD, the Toyota endowed Institute established in 2007 with the support from the Commonwealth of Kentucky under the research competitiveness trust …
University Startup Accelerators: Startup Launchpads Or Vehicles For Entrepreneurial Learning?,
2020
California Polytechnic State University, San Luis Obispo
University Startup Accelerators: Startup Launchpads Or Vehicles For Entrepreneurial Learning?, Lynn E. Metcalf, Thomas M. Katona, Jonathan L. York
Industrial Technology and Packaging
Over the past decade, universities have invested heavily in startup accelerator programs; however, their role in the university entrepreneurial ecosystem is ambiguous. Are university startup accelerators intended to educate or are they created to facilitate business starts and to contribute to regional economic development? In contrast, most private-sector startup accelerators serve a consistent and differentiated role in the entrepreneurial ecosystem—they provide programming and resources to startups to increase the probability of a return on investment. Understanding the role of university startup accelerators is an important precursor to evaluating their impact and whether or not the return is worth the considerable …
Study Of Rheological Properties Of Solutions And Pulp During Dicalcium Phosphate Formation Process,
2020
PhD student, Navoi Branch of the Academy of sciences of the Republic Uzbekistan, 210100, Uzbekistan, Navoi, E-mail: [email protected], Phone: +99891-438-21-21;
Study Of Rheological Properties Of Solutions And Pulp During Dicalcium Phosphate Formation Process, Navruzbek Ibraimovich Khurramov, Tulkin Isamurodovich Nurmurodov, Nilufar Negboevna Bozorova, Zarifa Umarovna Karimova
Chemical Technology, Control and Management
This article presents the rheological properties of suspensions obtained on the basis of nitric acid decomposition of unfired phosphorites of the Central Kyzylkum, as well as the chemical compositions of dicalcium phosphate and solid residues after the filtration process. The mass-spectral analysis of the pure dicalcium phosphate salt obtained by ammonization of the liquid part separated from the solid residue and subjected to filtration was studied.
Developing Highly Efficient Industrial Contact Heat Exchanger,
2020
Doctor of Technical Sciences, Professor, Department of Chemical Technology, Navoi State Mining Institute, Address: Galaba shoh st., 210100, Navai city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-94-377-46-44;
Developing Highly Efficient Industrial Contact Heat Exchanger, Khoshim Shayimovich Bakhronov, Abdumalik Abduvahobovich Akhmatov, Yorkin Bakhodirovich Kadirov
Chemical Technology, Control and Management
The paper presents the results of an experimental study of the intensification of heat transfer of a swirling flow in a cylindrical channel with two tangential and axial swirlers. During the experiments, such parameters were measured as: air flow in front of the vortex apparatus; hot water consumption; pressure drop in the vortex apparatus; temperature of working media at the inlet to the apparatus and at the outlet of it. A method for intensifying the heat transfer process, which is based on swirling a gas stream by its tangential supply, has been developed and investigated. Experimental studies of the intensity …
Image Processing Of Technological Objects,
2020
Ph.D., Associate Professor, Tashkent University of Information Technology named after Muhammad Al Kwarazmi, Tashkent, Uzbekistan Phone: 93-5535563, E-mail: [email protected]
Image Processing Of Technological Objects, Lyudmila Petrovna Varlamova
Chemical Technology, Control and Management
The article considers the problem of creating a smoke detection and fire detection system for technological objects. Fire detection is carried out using a vision system. Monitoring of technological objects is carried out using an unmanned aerial vehicle. For further actions, processing and classification of images is necessary. When observing the technological apparatuses of the chemical and petrochemical industry, problems arise associated with the large size, distribution and extent of objects. There may be situations in which there are violations of the technological regulations and, as a result, the occurrence of fire, fire and smoke. Using the technology of unmanned …
Analysis Of Information Security Methods In Biosystems And Application Of Intelligent Tools In Information Security Systems,
2020
Tashkent University of Information Technologies named after Muhammad al-Khwarizmi Address: 108, Amir Temur st., 100200, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-91-162-42-70.
Analysis Of Information Security Methods In Biosystems And Application Of Intelligent Tools In Information Security Systems, Sherzod Sayfullaev
Chemical Technology, Control and Management
In this paper, the methods of information protection in bio systems are studied. The paper considers the use of intelligent tools in information security systems and the use of adaptive information security systems. Several articles on the field of information protection in bio systems are analyzed. Disadvantages and advantages of neural network technologies in modern information security systems are described. The characteristics of bio systems and the specificity of DNA, the main features of the DNA code that provide information security and functional stability of bio systems data protection structure. Application of intelligent tools to create a comprehensive adaptive protection …
Electronic Spam Filtering Based On Neural Networks,
2020
SIC ICT of TUIT, Tashkent, Uzbekistan, E-mail: [email protected], Phone: +998 71 234 07 92;
Electronic Spam Filtering Based On Neural Networks, Tulkun Fayzievich Bekmuratov, Fayzullajon Bakhtiyorovich Botirov, Elshod Dilshod Ugli Haydarov
Chemical Technology, Control and Management
This article analyzes the problem of filtering spam messages and addressing spam messages, Bayesian theorems based on artificial intelligence, LVQ algorithms (LVQ learning vector quantization) and a filtering scheme for systems based on neural networks. The direct construction of an effective neural network model of spam filtering using database recognition technology is considered. The parameters of access to the neural network how to include predefined statistical and non-statistical attributes of messages are given. The structure of neural network technology for classifying emails is also considered. The procedure for analyzing incoming data using the tool included in the analytical platform Deductor …
Improving The Electrochemical Method Of Wastewater Treatment,
2020
Tashkent Pharmaceutical Institute, 45 Aybek Street,UzbekistanTashkent 100015 E-mail: [email protected], Phone: +998974649525;
Improving The Electrochemical Method Of Wastewater Treatment, Dilrabo Akramovna Muhammadieva, Diyor Asadullaevich Hadjibaev, Furkat Ilyasovich Erkabaev
Chemical Technology, Control and Management
With an electrochemical method of wastewater treatment, the preliminary isolation of iron, calcium and magnesium compounds from them contributes to a more intensive recovery process. The purpose of this work is to improve the efficiency of electrochemical treatment of industrial wastewater contaminated with chromium(III) and chromium(VI) ions. The research has determined the optimal conditions for increasing the yield of chromium in the Park during electrochemical treatment of chromate-containing wastewater by using modified bentonite for pre - treatment of wastewater. Pre-softening of wastewater with modified bentonite before electrochemical treatment made it possible to increase the current yield of chromium from 17% …
New Methods For Obtaining Quality Drinking Water In A Water Treatment Plant,
2020
Tashkent State Technical University, Address: 2 Universitetskaya st., 100095, Tashkent city, Republic of Uzbekistan E-mail: [email protected], Phone:+998-90-806-40-25;
New Methods For Obtaining Quality Drinking Water In A Water Treatment Plant, Djaloliddin Nosirovich Muxiddinov, Nilufar Abdusomi Qizi Yunusova, Islom Abdisalim Ugli Daynovov
Chemical Technology, Control and Management
The article discusses modern methods, the scientific justification and the study of effective technologies in water treatment schemes for the removal of pollution of natural and man-made origin to produce high-quality drinking water. And also the proposed water treatment plant has a high resource and the ability to effectively purify water from a large number of contaminants and can be used to purify and provide high-quality drinking water to small settlements and industrial facilities located away from transport highways, as well as residential facilities of social institutions, enterprises Catering.
