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Tashkent State Technical University

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Articles 571 - 578 of 578

Full-Text Articles in Engineering

Process Modeling Of Optimum Mixing Of Cyanic Solutions With Use Of Intellectual Systems Of Measurement On A Basis To A Fuzzy Logic, O.A Jumayev, A.A Akhmatov, G.B Makhmudov Apr 2018

Process Modeling Of Optimum Mixing Of Cyanic Solutions With Use Of Intellectual Systems Of Measurement On A Basis To A Fuzzy Logic, O.A Jumayev, A.A Akhmatov, G.B Makhmudov

Chemical Technology, Control and Management

Analyzes the principles of the development of microprocessor-based intelligent measurement and control systems that operate based on fuzzy logic rules. Using the possibilities of microprocessor intelligent systems, methods of automatic adjustment of the selected regulator are based on the dynamic model of the object, using the example of the process of optimal displacement of cyanide solutions.


The Algorithm Of Classification Of Medical Data In Space Of The Informative Signs With Use Of Functions Of Range And Closeness, M.M Kamilov, A.H Nishanov, G.P Dzhurayev Apr 2018

The Algorithm Of Classification Of Medical Data In Space Of The Informative Signs With Use Of Functions Of Range And Closeness, M.M Kamilov, A.H Nishanov, G.P Dzhurayev

Chemical Technology, Control and Management

In the article, the diseases commonly associated with the diagnosis in medicine are associated with headaches, which are the most common neurological diseases. An algorithm for determining the space of informative attributes for the objects of the considered class and assigning the significance level of the selected diagnosis from a complex of diagnoses belonging to the same class, relative to others, using algorithms for computing estimates based on the features of the processes of making diagnostic decisions in medicine.


Analysis Of The Mathematical Methods For Determination Information Parameter Described By Gauss's Function, O.O Zaripov, G.Sh Abidova Apr 2018

Analysis Of The Mathematical Methods For Determination Information Parameter Described By Gauss's Function, O.O Zaripov, G.Sh Abidova

Chemical Technology, Control and Management

Results of the analysis of the mathematical methods are considered in article for determination information parameter, described by Gauss's function. It is shown that at present nanotechnologies stand out in independent scientific direction, which gives the new pulse for development of the branches of the economy. The presented curves characterizing group merged peak, described function Gausses. On base got result of the analysis of the mathematical models, defining information parameters peak, occurs the simplification at building hardware device, information parameters under investigation peak.


Algorithms Of Stable Control Of A Matrix Object In The Conditions Of Parametric Uncertainty, U.F Mamirov Apr 2018

Algorithms Of Stable Control Of A Matrix Object In The Conditions Of Parametric Uncertainty, U.F Mamirov

Chemical Technology, Control and Management

The problems of forming algorithms for stable control of a matrix object under conditions of parametric uncertainty are considered. Algorithms for managing the object under consideration using the matrix pseudoinversion procedure are given. Recurrent algorithms based on the fringing method are used for pseudo-inversion of matrices. These relations allow us to implement recurrent pseudo-inversion of matrices in the control algorithm and, thereby, realize control actions in the adaptive control system of the matrix object under uncertainty conditions.


Steady Synthesis Algorithms Of The Adaptive Observers In Control Systems Dynamic Objects, H.Z Igamberdiyev, A.H Rasulev Apr 2018

Steady Synthesis Algorithms Of The Adaptive Observers In Control Systems Dynamic Objects, H.Z Igamberdiyev, A.H Rasulev

Chemical Technology, Control and Management

The problems of synthesis of adaptive observers are considered, for linear dynamic systems containing parameter identifiers, estimators of the initial and current state vectors. For a stable estimation of object parameters, an iterative process is used, based on the normalized decomposition of the matrix operator of the identification equation. These algorithms allow the stable identification of the parameters of the controlled objects on the basis of the use of regular computational procedures and thereby improve the quality of the functioning of the adaptive observing device.


Increase Of Identification Quality On The Basis Of Genetic Adjustment Of Models Parameters For Description Non-Stationary Objects, A.R Akhatov, N.O Isroilov Apr 2018

Increase Of Identification Quality On The Basis Of Genetic Adjustment Of Models Parameters For Description Non-Stationary Objects, A.R Akhatov, N.O Isroilov

Chemical Technology, Control and Management

Paper formulated the problem of increasing the quality of identification for casual time series (CTS), representing non-stationary objects in multicontour control systems on the basis of effective search of global and local extremums when parameters of target optimization function are rational. The new approach is offered to optimization of search by consideration statistical and dynamic characteristics of CTS as specimen of population generation, and by reflection of coordinate points set in space of evolution toward optimal values of target function. The modified genetic algorithm (GA) is developed on the basis of overlapping, generalization of opportunities and use of properties of …


Development Of Algorithm Of Optimum Control Bymultidimen-Sional Discrete Dynamic Objects By Quick Criteria, I.H. Siddikov, M.O. Atajonov Apr 2018

Development Of Algorithm Of Optimum Control Bymultidimen-Sional Discrete Dynamic Objects By Quick Criteria, I.H. Siddikov, M.O. Atajonov

Technical science and innovation

The article deals with the development of a synthesis algorithm in the sense of the optimal control of multidimensional dynamic objects by the criterion of speed. To solve this problem, we propose a modified method based on the representation of a discrete system in the form of a space of state variables and using the theorem on N-intervals. When determining the values of control actions, it is proposed to use the values of predicted errors that allow improving the quality of the control process and will provide high accuracy of calculation of control actions.


Development And Realization On The Ecm Of A Mathematicalmodel Of A Friction Mechanism With A Controlled Connection Inthe Contact Zone, K.A. Karimov, A.Kh. Akhmedov Apr 2018

Development And Realization On The Ecm Of A Mathematicalmodel Of A Friction Mechanism With A Controlled Connection Inthe Contact Zone, K.A. Karimov, A.Kh. Akhmedov

Technical science and innovation

In article results of realization оn the COMPUTER of mathematical model of the developed design of the frictional mechanism of the converter of the movement with the operated communication in a zone of contact with use of external physical fields (in particular, electrorheological effect) which is one of the effective principles of precision vibromechanics are considered. For engineering applications, with use of the Maple 13 software product regularities of change of key parameters of mechanical system are defined, studied and analyzed.