Ústav teoretické a experimentální elektrotechniky

 

Recent Submissions

  • A Sensor System for Detecting and Localizing Partial Discharges in Power Transformers with Improved Immunity to Interferences 

    Drexler, Petr; Čáp, Martin; Fiala, Pavel; Steinbauer, Miloslav; Kadlec, Radim; Kaška, Miloš; Kočiš, Lubomír (MDPI, 2019-02-22)
    The paper reports on the solution, principles, and application results related to a system for diagnosing main transformers in power plants via the radiofrequency method. The subject of the diagnostics is the occurrence ...

  • A Non-Destructive Impedance Method Using Resonance to Evaluate the Concentration of Steel Fibers in Concrete 

    Bachorec, Tibor; Fiala, Pavel; Steinbauer, Miloslav; Roubal, Zdeněk (De Gruyter, 2018-10-08)
    Steel-fiber reinforced concrete is a composite material characterized by outstanding tensile properties and resistance to cracking. The concrete, however, exhibits such characteristics only on the condition that the steel ...

  • An Experiment to Prove the Effect of Low-Level Magnetic Fields Resulting from Ionospheric Changes on Humans 

    Hanzelka, Michael; Dan, Jiří; Holcner, Vladan; Dohnal, Přemysl; Kadlec, Radim (De Gruyter, 2017-02-27)
    The investigation presented in the paper was performed in the laboratories of the Department of Theoretical and Experimental Electrical Engineering, Faculty of Electrical Engineering and Communication, Brno University of ...

  • New Approaches to Implementing the SmartJacket into Industry 4.0 

    Marcoň, Petr; Arm, Jakub; Benešl, Tomáš; Zezulka, František; Diedrich, Christian; Schröder, Tizian; Belyaev, Alexander; Dohnal, Přemysl; Kříž, Tomáš; Bradáč, Zdeněk (MDPI, 2019-04-02)
    The paper discusses the possibilities of incorporating sensors and indicators into the environment of an Industry 4.0 digital factory. The concept of Industry 4.0 (I4.0) is characterized via a brief description of the RAMI ...

  • The Asset Administration Shell of Operator in the Platform of Industry 4.0 

    Marcoň, Petr; Zezulka, František; Arm, Jakub; Benešl, Tomáš; Veselý, Ivo; Bradáč, Zdeněk; Diedrich, Christian; Schröder, Tizian; Belyaev, Alexander (IEEE, 2018-12-05)
    We discuss the Asset Administration Shell (AAS) concept of Industry 4.0 (I4.0), characterizing the current status of industrial automation and outlining the advantages of more deeply digitized manufacturing where the AAS ...

  • A Novel Tool for Supervised Segmentation Using 3D Slicer 

    Chalupa, Daniel; Mikulka, Jan (MDPI, 2018-11-12)
    The rather impressive extension library of medical image-processing platform 3D Slicer lacks a wide range of machine-learning toolboxes. The authors have developed such a toolbox that incorporates commonly used machine-learning ...

  • Testing an Impedance Non-destructive Method to Evaluate Steel-Fiber Concrete Samples 

    Komárková, Tereza; Fiala, Pavel; Steinbauer, Miloslav; Roubal, Zdeněk (Institute of Measurement Science of Slovak Academy of Sciences, 2018-03-01)
    The paper discusses tests related to the evaluation of the density and orientation of fibers in a composite material. Compared to the approaches used to date, the proposed technique is based on the evaluation of the ...

  • The Effect of a Spiral Gradient Magnetic Field on the Ionic Conductivity of Water 

    Bartušek, Karel; Marcoň, Petr; Fiala, Pavel; Máca, Josef; Dohnal, Přemysl (MDPI, 2017-09-02)
    We discuss the experimental verification of changes in the structure of a liquid water sample inserted in a special spiral “gradient” magnetic field. The magnetic flux components are characterized by a high degree of ...

  • A Real Model of a Micro-Grid to Improve Network Stability 

    Marcoň, Petr; Szabó, Zoltán; Veselý, Ivo; Zezulka, František; Sajdl, Ondřej; Roubal, Zdeněk; Dohnal, Přemysl (MDPI, 2017-07-30)
    This paper discusses the smart energy model of a smart grid using a significant share of renewable energy sources combined with intelligent control that processes information from a smart metering subsystem. An algorithm ...

  • Soft-tissues image processing: comparison of traditional segmentation methods with 2D active contour methods 

    Mikulka, Jan; Gescheidtová, Eva; Bartušek, Karel (De Gruyter Open, 2012-07-31)
    The paper deals with modern methods of image processing, especially image segmentation, classification and evaluation of parameters. It is focused primarily on processing medical images of soft tissues obtained by magnetic ...

  • The Evaluation of Noise Spectroscopy Tests 

    Fiala, Pavel; Drexler, Petr; Nešpor, Dušan; Szabó, Zoltán; Mikulka, Jan; Polívka, Jiří (MDPI, 2016-12-10)
    The paper discusses mathematical tools to evaluate novel noise spectroscopy based analysis and describes, via physical similarity, the mathematical models expressing the quantitative character of the modeled task. Using ...

  • MRI-Based Visualization of the Relaxation Times of Early Somatic Embryos 

    Mikulka, Jan; Vlachová Hutová, Eliška; Kořínek, Radim; Marcoň, Petr; Dokoupil, Zdeněk; Gescheidtová, Eva; Havel, Ladislav; Bartušek, Karel (De Gruyter, 2016-04-15)
    The large set of scientific activities supported by MRI includes, among others, the research of water and mineral compounds transported within a plant, the investigation of cellular processes, and the examination of the ...

  • GPU-Accelerated Reconstruction of T2 Maps in Magnetic Resonance Imaging 

    Mikulka, Jan (De Gruyter Open, 2015-08-12)
    The main tissue parameters targeted by MR tomography include, among others, relaxation times T1 and T2. This paper focuses on the computation of the relaxation time T2 measured with the Spin Echo method, where the sensing ...

  • Measuring Light Air Ions in a Speleotherapeutic Cave 

    Roubal, Zdeněk; Bartušek, Karel; Szabó, Zoltán; Drexler, Petr; Überhuberová, Jarmila (Institute of Measurement Science, Slovak Academy of Sciences, 2017-01-25)
    The paper deals with a methodology proposed for measuring the concentration of air ions in the environment of speleotherapeutic caves, and with the implementation of the AK-UTEE-v2 ionmeter. Speleotherapy, in the context ...

  • Characterization of the Embryogenic Tissue of the Norway Spruce Including a Transition Layer between the Tissue and the Culture Medium by Magnetic Resonance Imaging 

    Kořínek, Radim; Mikulka, Jan; Hřib, Jiří; Hudec, Jiří; Havel, Ladislav; Bartušek, Karel (De Gruyter Open, 2017-02-25)
    The paper describes the visualization of the cells (ESEs) and mucilage (ECMSN) in an embryogenic tissue via magnetic resonance imaging (MRI) relaxometry measurement combined with the subsequent multi-parametric segmentation. ...