Now showing items 44-63 of 94

  • Komprimované snímání perfúzního zobrazování v MRI 

    Mangová, Marie; Rajmic, Pavel; Jiřík, Radovan (Společnost elektrotechnického inženýrství, 2013-11-20)
    Perfúzní zobrazování v MRI je lékařská diagnostická metoda, kdy pacientovi podáme kontrastní látku a poté průběžně sledujeme průběh její koncentrace v postižené oblasti. Tuto závislost můžeme přibližně matematicky popsat ...
  • Linear function blocks following recent trends in analog circuit design 

    Herencsár, Norbert (VUTIUM, 2015-10-21)
    By following the most recent trend and progress in analog signal processing, this habilitation thesis deals with the latest developments in areas such as single-ended and fully-differential first-order all-pass filter ...
  • Links Failure Analysis of Averaging Executed by Protocol Push-sum 

    Kenyeres, Martin; Kenyeres, Jozef; Škorpil, Vladislav (Hikari, 2016-08-01)
    In this paper, we examine the impact of links failure on the push-sum protocol. This protocol is very suitable for the implementation into WSNs and therefore, we verify the robustness of the unsecured execution of this ...
  • Modified GIANT Dynamic Bandwidth Allocation Algorithm of NG-PON 

    Horváth, Tomáš; Oujezský, Václav; Münster, Petr; Vojtěch, Josef; Havliš, Ondřej; Sikora, Pavel (Croatian Communications and Information Society, 2017-04-07)
    As NS-3 simulator does not support the direct mapping of Triple Play services into T-CONT and their labeling. We focus on a delay value for Triple Play services which was reduced by own modification in a GIANT algorithm. ...
  • Multifunction RF Filters Using OTA 

    Herencsár, Norbert; Vrba, Kamil (Springer, 2007-09-03)
    In this paper the procedure of RF filter design using two active elements OTA is shown. The general method of filter design using OTA amplifiers, when the fully connected feedback network was designed around the two OTA ...
  • Multivariate classification of echellograms: a new perspective in Laser-Induced Breakdown Spectroscopy analysis 

    Pořízka, Pavel; Klus, Jakub; Mašek, Jan; Rajnoha, Martin; Prochazka, David; Modlitbová, Pavlína; Novotný, Jan; Burget, Radim; Novotný, Karel; Kaiser, Jozef (Springer Nature, 2017-12-01)
    In this work, we proposed a new data acquisition approach that significantly improves the repetition rates of Laser-Induced Breakdown Spectroscopy (LIBS) experiments, where high-end echelle spectrometers and intensified ...
  • New Resistorless and Electronically Tunable Realization of Dual-Output VM All-Pass Filter Using VDIBA 

    Herencsár, Norbert; Minaei, Shahram; Koton, Jaroslav; Yuce, Erkan; Vrba, Kamil (Springer, 2013-01-07)
    In this paper, a new active element called voltage differencing inverting buffered amplifier (VDIBA) is presented. Using single VDIBA and a capacitor, a new resistorless voltage-mode (VM) first-order all-pass filter (APF) ...
  • New resistorless tunable voltage-mode universal filter using single VDIBA 

    Herencsár, Norbert; Cicekoglu, Oguzhan; Šotner, Roman; Koton, Jaroslav; Vrba, Kamil (Springer, 2013-08-01)
    To increase the universality of the recently introduced voltage differencing inverting buffered amplifier (VDIBA), this letter presents a new voltage-mode (VM) multi-input–single-output (MISO) universal filter. The proposed ...
  • New voltage-mode universal filter and sinusoidal oscillator using only single DBTA 

    Herencsár, Norbert; Koton, Jaroslav; Vrba, Kamil; Lattenberg, Ivo (Taylor & Francis, 2010-04-01)
    In this article, a new voltage-mode second-order universal frequency filter and sinusoidal oscillator using only single differential-input buffered and transconductance amplifier (DBTA) is presented. The proposed voltage-mode ...
  • Novel Algorithm in Activation Process of GPON Network 

    Horváth, Tomáš; Münster, Petr; Jurčík, Michal; Filka, Miloslav (Croatian Communications and Information Society, 2016-02-17)
    Passive optical networks are dominating access networks around the world due to its their economical aspect, bandwidth, and penetration. It is necessary to deal with specification of these networks.
  • A Novel Current-Mode SIMO Type Universal Filter Using CFTAs 

    Herencsár, Norbert; Koton, Jaroslav; Vrba, Kamil; Mišurec, Jiří (Hikari Ltd., 2009-02-01)
    In this paper a new active element for the realization of current-mode analog blocks Current Follower Transconductance Amplifier (CFTA) is presented. The element is a combination of the Current Follower (CF) and the Balanced ...
  • Novel first-order all-pass filter applications of z-copy voltage differencing current conveyor 

    Šotner, Roman; Herencsár, Norbert; Jeřábek, Jan; Vrba, Kamil; Dostál, Tomáš; Jaikla, Winai; Metin, Bilgin (NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR), 2015-08-05)
    The application of z-copy voltage differencing current conveyor (ZC-VDCC) in simple and interesting first-order all-pass sections has been studied in the present paper. The solutions presented here have presumptions for ...
  • A Novel Pseudo-Differential Integer/Fractional-Order Voltage-Mode All-Pass Filter 

    Herencsár, Norbert; Šotner, Roman; Kartci, Aslihan; Vrba, Kamil (IEEE, 2018-05-08)
    The paper presents the first- (integer) and fractional-order case studies of a novel pseudo-differential (P-D) voltage-mode all-pass filter (APF) employing a single differential voltage current conveyor (DVCC), one resistor, ...
  • A Novel Unique Parameter for Increasing of Security in GPON Networks 

    Horváth, Tomáš; Münster, Petr; Filka, Miloslav (Croatian Communications and Information Society, 2016-07-01)
    Passive optical networks are widely used because of their sufficient bandwidth and low price of individual elements. Based on the European Commission, The Czech Republic ISPs have to ensure 30 Mbit/s (in existing networks) ...
  • Optimized High Resolution 3D Dense-U-Net Network for Brain and Spine Segmentation 

    Kolařík, Martin; Burget, Radim; Uher, Václav; Říha, Kamil; Dutta, Malay Kishore (MDPI, 2019-02-15)
    The 3D image segmentation is the process of partitioning a digital 3D volumes into multiple segments. This paper presents a fully automatic method for high resolution 3D volumetric segmentation of medical image data using ...
  • Orthogonality is superiority in piecewise-polynomial signal segmentation and denoising 

    Novosadová, Michaela; Rajmic, Pavel; Šorel, Michal (Springer Open, 2019-01-25)
    Segmentation and denoising of signals often rely on the polynomial model which assumes that every segment is a polynomial of a certain degree and that the segments are modeled independently of each other. Segment borders ...
  • Parkinson Disease Detection from Speech Articulation Neuromechanics 

    Gomez-Vilda, Pedro; Mekyska, Jiří; Manuel Ferrandez, Jose; Palacios-Alonso, Daniel; Gómez-Rodellar, Andrés; Rodellar Biarge, María Victoria; Galáž, Zoltán; Smékal, Zdeněk; Eliášová, Ilona; Košťálová, Milena; Rektorová, Irena (Frontiers, 2017-08-25)
    Aim: The research described is intended to give a description of articulation dynamics as a correlate of the kinematic behavior of the jaw-tongue biomechanical system, encoded as a probability distribution of an absolute ...
  • Positioning Information Privacy in Intelligent Transportation Systems: an Overview and Future Perspective 

    Ometov, Aleksandr; Bezzateev, Sergey; Davydov, Vadim; Shchesniak, Anna; Mašek, Pavel; Lohan, Elena Simona; Koucheryavy, Yevgeni (MDPI, 2019-03-26)
    Today, one of the most promising markets in the world is related to vehicular niche. At the same time, one of the challenges for enabling autonomous cars in the Intelligent Transportation Systems (ITS) is the positioning ...
  • Practical Design of Fractional-Order Oscillator Employing Simple Resonator and Negative Resistor 

    Šotner, Roman; Jeřábek, Jan; Domanský, Ondřej; Herencsár, Norbert; Kartci, Aslihan; Dvořák, Jan (IEEE, 2018-11-08)
    This contribution presents straightforward design of a fractional-order oscillator employing novel simple impedance inverter (implementing differential voltage current conveyor transconductance amplifier as active element) ...
  • A Practical Perspective on 5G-Ready Highly Dynamic Spectrum Management with LSA 

    Mašek, Pavel; Mokrov, Evgeny; Zeman, Kryštof; Ponomarenko-Timofeev, Aleksei; Pyattaev, Alexander; Nesterov, Sergey; Andreev, Sergey; Hošek, Jiří; Samouylov, Konstantin; Koucheryavy, Yevgeni (Hindawi, 2018-07-24)
    A diversity of wireless technologies will collaborate to support the fifth-generation (5G) communication networks with their demanding applications and services. Despite decisive progress in many enabling solutions, ...