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2018

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Articles 1351 - 1380 of 8951

Full-Text Articles in Engineering

Automation Of The Calculation Of Uncertainty Measurements., O.Sh Khakimov, G.A Gaziyev Oct 2018

Automation Of The Calculation Of Uncertainty Measurements., O.Sh Khakimov, G.A Gaziyev

Chemical Technology, Control and Management

The work presented in this report described a program that allows calculating the results of direct and indirect measurements, evaluates their standard, total and extended type A and B uncertainties by reduction and linearization methods, calculate the sensitivity coefficients of the output (measured) value estimation, to changes in the estimates of input quantities (BB), the contribution of standard uncertainties (СН) ВВ to the total СН of type A and type B, determine the coverage factor, to make the budget of uncertainty of measurements.

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Models Of Multi-Ordinary Mechatronic Models Of Intellectual Robots., H.N Nazarov, N.R Matyokubov Oct 2018

Models Of Multi-Ordinary Mechatronic Models Of Intellectual Robots., H.N Nazarov, N.R Matyokubov

Chemical Technology, Control and Management

In the article mathematic description of mechatronic module in intelligent robots and robotic systems are observed. To display the structure of mechatronic modules, which consist of interrelated different electrical, magnetic and mechatron components, mathematic models by the help of multiplication theory based on relations and visualising lines and points are designed. Analytical explanation of mechantronic modele in intelligent robots is provided.

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Virtual Analyser Of Quality Of Liquid Products., U.A Ruziev, M.K Shodiev Oct 2018

Virtual Analyser Of Quality Of Liquid Products., U.A Ruziev, M.K Shodiev

Chemical Technology, Control and Management

The conceptual foundations of the construction of virtual analysers and their application in systems for monitoring the state of continuous technological processes are considered. A parametric model of process control is proposed, allowing to structure a multitude of virtual analysers and determine the types of their functionality. An approach to the problem of building a unified virtual monitoring system based on a matrix of typical virtual analysers has been studied.

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System Of Adaptive Control Of Technological Parameters Of Production Of Soda., N.U Uteuliev, N.S Yakubova, K.I Usmanov, D.B Yadgarva Oct 2018

System Of Adaptive Control Of Technological Parameters Of Production Of Soda., N.U Uteuliev, N.S Yakubova, K.I Usmanov, D.B Yadgarva

Chemical Technology, Control and Management

A systematic analysis of the existing system of analytical control of technological parameters for the production of soda ash is made. It is investigated as an adaptive control object, which operatively changes its parameters depending on the real state of the controlled technological process. A technique is proposed for determining the frequency of the removal of technological parameters, based on methods of mathematical statistics and based on the analysis of experimental data of a particular process.

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Realization Of Optical Modulators For Fiber Optic Sensors., A.M Nazarov, M.M Xasanov, A.B Jabborov, U.D Yusupova Oct 2018

Realization Of Optical Modulators For Fiber Optic Sensors., A.M Nazarov, M.M Xasanov, A.B Jabborov, U.D Yusupova

Chemical Technology, Control and Management

The principles of realization of solid-state optical modulators for building fiber-optic sensors are considered in the article. The electro-optical effect used by many optical modulators is described. Detailed volume modulators based on electro-optical and acousto-optic effects are presented. Integral-optical modulators with phase and interferometric intensity modulation, as well as pure-fiber optical modulators with phase modulation are described with description. Modulator models in the form of equivalent circuits with lumped parameters and methods for obtaining the frequency characteristics of optical modulators. The implementation of a fiber-optic frequency converter is presented, in which an acoustic wave from a sensor element perturbs two …

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Informational Effective Contact Measuring Transducers For Modern Control And Management Systems In The Agricultural Sphere., A.M Plakhtiev, E.V Ivanova Oct 2018

Informational Effective Contact Measuring Transducers For Modern Control And Management Systems In The Agricultural Sphere., A.M Plakhtiev, E.V Ivanova

Chemical Technology, Control and Management

The article shows the necessity of application of irrigation systems, power supply, control and automation of hydraulic structures and pumping stations of noncontact conversion and measurement of large direct currents with the help of effective information measuring magnetomodulation noncontact ferromagnetic converters for the needs of amelioration and irrigation in the electric power industry, and results are presented on the development of such converters .

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The System Individualized Principles Of Management Of Technologies Of Field Husbandry., V.A Korolev, A.M Bashilov, Z.O Eshmuradov Oct 2018

The System Individualized Principles Of Management Of Technologies Of Field Husbandry., V.A Korolev, A.M Bashilov, Z.O Eshmuradov

Chemical Technology, Control and Management

The system and organized, local individualized agrotechnologies provide on the land ground divided into priority zones, the simultaneous parallel and interconnected performance of a complex of technological operations on production of crop production: operations on preparation of seeds of an agriculture, cultivation of seedling, laying of seedling to the soil, to cultivation of an agriculture, stimulation of her development. Interaction between the carried-out processes is carried out in real time with a possibility of necessary corrections of processes during their performance. A considerable part of technological operations realize without rendering negative impacts on an agriculture, the soil and the environment, …

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Measured Property Of Objects In Analytical Measurements., B.M Ahmedov, R.A Ibragimov, A.S Rashidov Oct 2018

Measured Property Of Objects In Analytical Measurements., B.M Ahmedov, R.A Ibragimov, A.S Rashidov

Chemical Technology, Control and Management

The paper presents analytical measurements for the study of the object under investigation, while the property of the measured objects is considered. Aspects of measurement aimed at defining the physical properties of the physical value, including the purpose and concept of measurement were defined, which includes the study or evaluation of any properties of the object in analytical measurements. The results of experiments for valid objects are presented that are determined by infinite number of properties to obtain measurement results that are adequate to the measurement purpose. For that certain properties of objects are regarded as measured values that are …

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Formalization Of Tasks Of Synthesis Of Intellectual Control Systems Of Technological Processes Of High-Speed Railway Transport., Baratov . Dilshod, Aripov Nazirjon, Ruziev Davron Oct 2018

Formalization Of Tasks Of Synthesis Of Intellectual Control Systems Of Technological Processes Of High-Speed Railway Transport., Baratov . Dilshod, Aripov Nazirjon, Ruziev Davron

Chemical Technology, Control and Management

The article describes the stages of development of high-speed rail on the Railways of Uzbekistan, peculiarities of electronic document management of technical documentation of railway automatics and telemechanics. The considered problem of synthesis of mathematical descriptions of electronic document management of technical documentation of railway automatics and telemechanics. The article describes the formalized representation of electronic document management of technical documentation of railway automatics and telemechanics.

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Modeling And Research Of Circuitsof Intelligent Sensors And Measurement Systemswith Distributed Parameters And Values., I. Siddikov, Kh. Sattarov, H. Khujamatov Oct 2018

Modeling And Research Of Circuitsof Intelligent Sensors And Measurement Systemswith Distributed Parameters And Values., I. Siddikov, Kh. Sattarov, H. Khujamatov

Chemical Technology, Control and Management

transforming circuits of intelligence transducer, current sensors - transducers, research input and output signals of intelligent sensors and measurement systems

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Sustainable Algorithms For Synthesis Of Local-Optimal Adaptive Dynamic Object Management Systems., H.Z Igamberdiyev, J.U Sevinov, A.N Yusupbekov, O.O Zaripov Oct 2018

Sustainable Algorithms For Synthesis Of Local-Optimal Adaptive Dynamic Object Management Systems., H.Z Igamberdiyev, J.U Sevinov, A.N Yusupbekov, O.O Zaripov

Chemical Technology, Control and Management

Stable algorithms for the formation of control actions in local-optimal adaptive control systems for dynamic objects are given. Considering that the initial equations for estimating the parameters of an object and a control device, as a rule, are ill-conditioned, it becomes necessary to use regular methods. The stable algorithms for finding the desired solutions based on the methods of the minimum pseudoinverse matrix and singular decomposition, which contribute to improving the accuracy of the formation of control actions, are given.

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Nonlinear Dynamics With Chaotic Processes In Biotechnology And Genetic Engineering., M.A Ismailov, M. Saidalieva, M.B Hidirova Oct 2018

Nonlinear Dynamics With Chaotic Processes In Biotechnology And Genetic Engineering., M.A Ismailov, M. Saidalieva, M.B Hidirova

Chemical Technology, Control and Management

This paper deals with modeling genetic systems activity during manipulation of an organism’s genes using biotechnology. Computational experiments show that at certain values of internal and external cellular conditions there are exist the following regimes: stationary state, auto-oscillations and chaotic behavior of gene regulatory network linkages.

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Algorithm For Optimization Of The Membership Function Of The Fuzzy Control Model On The Basis Of The Probabilistic Approach., I.Kh Siddikov, S.T Yunusova, R.N Izmaylova Oct 2018

Algorithm For Optimization Of The Membership Function Of The Fuzzy Control Model On The Basis Of The Probabilistic Approach., I.Kh Siddikov, S.T Yunusova, R.N Izmaylova

Chemical Technology, Control and Management

The problem of optimization of the fuzzy control model of the drying unit in the cotton ginning industry operating under conditions of a priori uncertainty is considered. As an example, the process of temperature control in a drying unit is considered. As methods of optimization, it is proposed to use probabilistic methods. As an optimization parameter, the fuzzy model membership functions are used. A comparative analysis of the results obtained on the basis of simulation modeling before and after optimization is carried out.

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Occurrent System Of Assessment Of Quality Of Corporate Information Computing Network., M. Sapaev, Z.Z Nigmatov, M.O Atajonov, Х.А Bahrieva Oct 2018

Occurrent System Of Assessment Of Quality Of Corporate Information Computing Network., M. Sapaev, Z.Z Nigmatov, M.O Atajonov, Х.А Bahrieva

Chemical Technology, Control and Management

The article analyzes the corporate network quality assessment. In the work questions of an estimation of qualitative indicators of corporate information-computed networks on the basis of neural networks are given. The main indicators are: information delay and packet loss. To evaluate the quality of the network, the use of a fuzzy model is proposed. A modeling algorithm for assessing the quality of a corporate information network is developed. The reliability of the proposed approach was verified with the help of a simulation system implemented with MatLab

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A Z-Number Valued Analytical Hierarchy Process., Lala M. Zeinalova Oct 2018

A Z-Number Valued Analytical Hierarchy Process., Lala M. Zeinalova

Chemical Technology, Control and Management

The Z-number concept is the attempt to model real-world uncertainty and relates to the issue of reliability of information, especially in the realms of economics and decision analysis. In this paper, we present an approach that can handle Z-numbers in the context of multi-criteria decision-making applying direct computations. In this paper we consider an Anаlytical Hierarchy Process based on Z-number valuations, taking into account the uncertаinty of the experts` opinion in estimаtion of the options. We considered a case of estimation of technical institutions with 7 criteria: campus infrastructure, faculty, students, academic ambience, teaching learning process, use of advance teaching …

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Formation An Informative Description Of Objects., Sh.X Fazilov, N.S Mamatov Oct 2018

Formation An Informative Description Of Objects., Sh.X Fazilov, N.S Mamatov

Chemical Technology, Control and Management

In the article considered the problem of formation an informative description of objects in classification tasks. To solve this problem, proposed the methods and algorithms based on heuristic criteria of private and generalized species.

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Implementation Of The Fuzzitic Semantic Hypernet Based On The Graphic Models To Provide The Reliability Of Information In The Systems Of Electronic Document Circulation., A.R Akhatov Oct 2018

Implementation Of The Fuzzitic Semantic Hypernet Based On The Graphic Models To Provide The Reliability Of Information In The Systems Of Electronic Document Circulation., A.R Akhatov

Chemical Technology, Control and Management

The problem is formulated for increasing the reliability of information of electronic documents (ED). The methods of increasing the reliability of information in electronic document circulation systems are investigated on the basis of search, recognition and classification of requisites, attributes, ED formats for the purpose of detection and correction of distortions. A semantic hypernet was designed on the basis of synthesis of models of stochastic search, fuzzy logic, methods of formation and use of knowledge bases (KB) with fuzzy rules and databases. The software complex is implemented as part of electronic document circulation systems.

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Principles Of Management Of Agrotechnological Systems., V.A Korolev, A.M Bashilov, V.N Toporkov, Z.O Eshmurodov Oct 2018

Principles Of Management Of Agrotechnological Systems., V.A Korolev, A.M Bashilov, V.N Toporkov, Z.O Eshmurodov

Chemical Technology, Control and Management

Modern approaches to the solution of problems of increase in the outputs and quality, reduction of cost of agricultural production, negative impacts of agropro-technologies on the environment provide consideration of transformation of energy in agroprocesses as a part of uniform agrotechnological systems. Creation of a control system of devices of different function and application on the basis of modular model doesn't demand development of difficult algorithms and schemes of management. Application of modular models, use in them standard mathematical dependences for forecasting of changes of characteristics of processes and management significantly simplifies technical realization of elements of a technogenic part …

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Intelligent Control Technology, The Reliability Of The Measuring Information., Sh.M Gulyamov, B.M Temerbekova, N.X Bobomurodov Oct 2018

Intelligent Control Technology, The Reliability Of The Measuring Information., Sh.M Gulyamov, B.M Temerbekova, N.X Bobomurodov

Chemical Technology, Control and Management

The use of excessive measuring information and the organization on this basis of metrological self-verification, self-control and self-certification, giving the measuring tools the property of intelligence, provide a significant reduction in the risk of using in monitoring and control systems of inaccurate measurement information and reduce operating costs.

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Fuzzy Task Of Rational Distribution Resources Of Dynamic Programming., O.M Ismailov, M.M Fozilova Oct 2018

Fuzzy Task Of Rational Distribution Resources Of Dynamic Programming., O.M Ismailov, M.M Fozilova

Chemical Technology, Control and Management

The article considers one of the management tasks - resource allocation for indistinctly given initial information, which is both theoretical and practical interest.

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Expanding The Possibilities Of Instruments To Improve The Information Reliability Of Electronic Documents Of Industrial Management Systems., I.I Jumanov, Kh.B Karshiev Oct 2018

Expanding The Possibilities Of Instruments To Improve The Information Reliability Of Electronic Documents Of Industrial Management Systems., I.I Jumanov, Kh.B Karshiev

Chemical Technology, Control and Management

The possibilities of tools to increase the reliability of the transmission of electronic documents in industrial control systems for use in various subject areas of data processing optimization are explored and expanded. A semantic search hyperset was designed, a software and algorithmic complex was implemented, which demonstrated an improvement in the reliability of information compared to existing technologies.

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Method Of Solving Incorrect Tasks Formed By Construction Of Fuzzy Models Assessing The Weakly Formallized Processes., D.T Muxamediyeva, X.A Primova Oct 2018

Method Of Solving Incorrect Tasks Formed By Construction Of Fuzzy Models Assessing The Weakly Formallized Processes., D.T Muxamediyeva, X.A Primova

Chemical Technology, Control and Management

The article examines the improvement of the method for obtaining a fuzzy and fuzzy-stable solution to incorrect problems arising in the construction of a model for estimating the state of weakly formalizable processes using various membership functions based on the theory of fuzzy sets. The proposed method makes it possible to construct a correct fuzzy model of weakly formalizable processes.

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Mathematical Modeling Of A Gas Burner Of Combustion Of Natural Gas In Glass Furnaces., N.X Bobomurodov, U.U Holmanov Oct 2018

Mathematical Modeling Of A Gas Burner Of Combustion Of Natural Gas In Glass Furnaces., N.X Bobomurodov, U.U Holmanov

Chemical Technology, Control and Management

The mathematical modeling of processes, flowing gas burners of glass melting furnaces, is performed. Models are proposed in the form of equations for the material and heat balance with the physical variables of natural gas and air entering the burner. Calculations of the calorific value of gas fuel are performed, the equations of combustion of simple gases, the consumption of the oxidizer and the amount of products of complete combustion are given in theoretical conditions.

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The Problem Of Phasification Of The Parameters Of The Storage Process Of A Sportshead Oil Raw Material When Building A Fuzzy Regulator., N.A Kabulov Oct 2018

The Problem Of Phasification Of The Parameters Of The Storage Process Of A Sportshead Oil Raw Material When Building A Fuzzy Regulator., N.A Kabulov

Chemical Technology, Control and Management

the article proposes an automated intelligent process control system for the storage of perishable oilseed raw materials based on phase-control. To solve the problem of phasing the process parameters, the modified Saaty method is used. In order to optimize the description, the obtained membership functions were approximated in the Maple symbolic mathematics package.

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Equations And Transfer Functions Of Main Elements Of A Multi-Motorized Automated Electric Drive Of Pumping Unit., M.M Khamudkhanov, Sh.B Umarov Oct 2018

Equations And Transfer Functions Of Main Elements Of A Multi-Motorized Automated Electric Drive Of Pumping Unit., M.M Khamudkhanov, Sh.B Umarov

Chemical Technology, Control and Management

In this very article the principle of building an energy-sufficient multi-engine automated drive of water-lifting pumping unit is suggested, its main electromechanical ratios are given and equations are obtained that define the dynamics of the system and main elements were put into transfer functions.

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The Intellectual System Of Automatic Control At Enrichment Of Technogenic Waste In The Fluidized Layer., B.I Yunusov, A.A Artiqov, I.I Yunusov, F.O Qosimov Oct 2018

The Intellectual System Of Automatic Control At Enrichment Of Technogenic Waste In The Fluidized Layer., B.I Yunusov, A.A Artiqov, I.I Yunusov, F.O Qosimov

Chemical Technology, Control and Management

In management of difficult technological processes the intellectual systems of automatic control are successfully applied. Among intellectual control systems the greatest distribution was gained by indistinct control systems. For design of the indistinct regulator the mathematical model of continuous and periodic processes of enrichment of technogenic waste of the mining and metallurgical plants (MMP) is constructed. Existence of indistinct sets the dispersion of the sizes of the separated particles, difference of a form of particles of real disperse materials from spherical, change of humidity of particles seasonally demand accounting of such factors as. Besides impact change of a consumption of …

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About Optimization Technological Process Of Primary Cotton Raw Processing., N.Z Kamalov, J.N Kamalov, Kh.N Kamalov, S.N Kamalov Oct 2018

About Optimization Technological Process Of Primary Cotton Raw Processing., N.Z Kamalov, J.N Kamalov, Kh.N Kamalov, S.N Kamalov

Chemical Technology, Control and Management

The methods of optimization of the class of separation processes on the example of the technological process of raw cotton ginning are given. Algorithms of multi-criteria optimization are presented. The problem is solved with the use of an automatic optimization system, which provides for the correction of the coefficients of the mathematical model of the process at certain intervals, and the solution of the problem of optimal control of the process of Ginning clap raw cotton.

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Datanet: Deep Learning Based Encrypted Network Traffic Classification In Sdn Home Gateway, Pan Wang, Feng Ye, Xuejiao Chen, Yi Qian Oct 2018

Datanet: Deep Learning Based Encrypted Network Traffic Classification In Sdn Home Gateway, Pan Wang, Feng Ye, Xuejiao Chen, Yi Qian

Department of Electrical and Computer Engineering: Faculty Publications

A smart home network will support various smart devices and applications, e.g., home automation devices, E-health devices, regular computing devices, and so on. Most devices in a smart home access the Internet through a home gateway (HGW). In this paper, we propose a software-defined network (SDN)-HGW framework to better manage distributed smart home networks and support the SDN controller of the core network. The SDN controller enables efficient network quality-of-service management based on real-time traffic monitoring and resource allocation of the core network. However, it cannot provide network management in distributed smart homes. Our proposed SDN-HGW extends the control to …

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Automated And Optimized Sensor Deployment Using Building Models And Electromagnetic Simulation, Chunhee Cho, Jeewoong Park, Kyungki Kim Oct 2018

Automated And Optimized Sensor Deployment Using Building Models And Electromagnetic Simulation, Chunhee Cho, Jeewoong Park, Kyungki Kim

Civil and Environmental Engineering and Construction Faculty Research

With the advent of wireless sensing technology and interest in tracking resources, researchers have developed advanced tracking algorithms by using one or more sensor systems for improved accuracy and reliability of tracking. The objective of this research lies in another aspect−deployment−of tracking that has received only little attention until now. The research explores a method for sensor deployment particularly designed for the building in which the sensors are used. To tailor our solution to a specific building, we integrate a building information model with an electromagnetic energy analysis. By using such a model, the system extracts the properties of building …

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Tissue Oxygen Saturation Predicts Response To Breast Cancer Neoadjuvant Chemotherapy Within 10 Days Of Treatment, Jeffrey M. Cochran, David R. Busch, Anais Leproux, Zheng Zhang, Thomas D. O'Sullivan, Albert E. Cerussi, Philip M. Carpenter, Rita S. Mehta, Darren Roblyer, Wei Yang, Keith D. Paulsen, Brian Pogue, Shudong Jiang, Peter A. Kaufman Oct 2018

Tissue Oxygen Saturation Predicts Response To Breast Cancer Neoadjuvant Chemotherapy Within 10 Days Of Treatment, Jeffrey M. Cochran, David R. Busch, Anais Leproux, Zheng Zhang, Thomas D. O'Sullivan, Albert E. Cerussi, Philip M. Carpenter, Rita S. Mehta, Darren Roblyer, Wei Yang, Keith D. Paulsen, Brian Pogue, Shudong Jiang, Peter A. Kaufman

Dartmouth Scholarship

Ideally, neoadjuvant chemotherapy (NAC) assessment should predict pathologic complete response (pCR), a surrogate clinical endpoint for 5-year survival, as early as possible during typical 3- to 6-month breast cancer treatments. We introduce and demonstrate an approach for predicting pCR within 10 days of initiating NAC. The method uses a bedside diffuse optical spectroscopic imaging (DOSI) technology and logistic regression modeling. Tumor and normal tissue physiological properties were measured longitudinally throughout the course of NAC in 33 patients enrolled in the American College of Radiology Imaging Network multicenter breast cancer DOSI trial (ACRIN-6691). An image analysis scheme, employing z-score normalization to …

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