7 research outputs found

    Mathematical model of integrated thermal apparatus

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    Mathematical model for the integrated thermal apparatus was developed. It consists of program modules from which individualfurnace model can be generated. For the model generation elementary balance method was used. Generation of the individual modelincludes model formulation and parameters determination. Model formulation is based on first principles, heuristics and empirical results.Parameters determination is generally based on priory information, but it has to take into account specific conditions. The developed modelwas adapted for real time applications. For quantitative application developed model has to be calibrated. For the calibration theoperational furnace can be used. For model calibration of not existing furnace the priory knowledge and physical model can be used.Presented model was calibrated on experimental furnace. The results were gained by simulations

    Proceedings of the 12th International Conference on Kinanthropology

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    Proceedings of the 12th Conference of Sport and Quality of Life 2019 gatheres submissions of participants of the conference. Every submission is the result of positive evaluation by reviewers from the corresponding field. Conference is divided into sections – Analysis of human movement; Sport training, nutrition and regeneration; Sport and social sciences; Active ageing and sarcopenia; Strength and conditioning training; section for PhD students

    FRACTIONAL-ORDER STATE SPACE MODELS

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    Abstract: In this paper we will present some alternative types of mathematical description and methods of solution of the fractional-order dynamical system in the state space. We point out the difference in the true sense of the name „state “ space for the integer-order and fractional-order system and the importance of the initialization function for the fractionalorder system. Some implications concerning the state feedback control theory are discussed. Presented are the results of simulations. Key words: fractional-order system, state space model, initialization problem

    MATHEMATICAL MODEL OF THE THEORETICAL TEMPERATURE OF THE BLAST FURNACE

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    Abstract: In this contribution we will present a description of the mathematical model of the blast furnace theoretical temperature combustion. The developed mathematical model served for analysis, monitoring, and control of the theoretical temperature. At the end we will present the results of analysis obtained with the model at parameter optimisation of the mixed blast furnace wind parameters. Key words: blast furnace, theoretical combustion temperature, mathematical model.

    Aplikácia metodiky AEO pri registrácii silanizácie gumárenských zmesí

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    Existuje celá řada experimentálních metod zaměřených na zkoumání strukturálních transformaci (DTA , X - Ray , TSDC , .. ). Tyto metody se liší od sebe spektrem kvantitativních ukazatelů a jejich použití je omezeno povahou zkoumané struktury a procesu. V jistém smyslu, je také možné uvažovat o silanizaci pryžové směsi jako o strukturální transformaci. Je to proměna nezesítěné struktury na zesítěnou. Nicméně , specifičnost uvedené transformace je , že se vyskytuje postupně, formou chemické reakce . Experimentální sledování proměn neuspořádané pryžové směsi může být docela obtížné . Příspěvek se zabývá teoretickými principy experimentální metodiky , které jsme nazvali AER (analýza elektrické odozvy) . Uvedená metodika identifikaci pryžových směsí v průběhu silanizace . Pozornost je zaměřena na modelování možné elektrické odezvy na chemické reakce v systému, skládající se z několik součástí. Výsledky modelu jsou porovnány s experimentálními daty AER měřenými při silanizaci reakce zejména kaučukových směsí.There are a number of experimental methods aimed at the investigation of structural transformations (DTA, X-Ray, TSDC, ...). These methods differ from each other by a spectrum of quantitative indicators and their application is limited by the nature of investigated structures and processes. In a sense, it is also possible to consider the silanization of rubber mixtures as a structural transformation. This is a transformation from the unlinked to crosslinked structure. However, the specificity of mentioned transformation is, that it occurs gradually, by the form of a chemical reaction. Experimental observation of transformations of disordered rubber mixtures type structures can be quite difficult. The contribution deals with theoretical principles of experimental methodology, which we have called AER (Analysis of the Electrical Response). We analyze mentioned methodology just in connection with its application for the identification of rubber mixtures silanization. Our attention is focused on the modeling of a possible electrical response of a chemical reaction in system consisting of several components. Results of the model are compared with experimental data AER measured during silanization reaction in particular rubber mixtures.
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