Now showing items 848-867 of 1126

  • Radiant wall cooling with pipes arranged in insulation panels attached to facades of existing buildings 

    Šimko, Martin; Krajčík, Michal; Šikula, Ondřej (EDP Sciences, 2019-08-13)
    Radiant systems are being increasingly used for space heating and cooling of buildings. The contemporary research of radiant systems addresses mainly floor and ceiling structures. Research regarding the possibilities of ...
  • Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles 

    Šetka, Milena; Calavia, Raul; Vojkůvka, Lukáš; Llobet, Eduard; Drbohlavová, Jana; Vallejos Vargas, Stella (Springer Nature, 2019-06-11)
    Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles, respectively and tested upon ammonia exposure using Raman and X-ray photonelectrone spectroscopy (XPS). Characterization of both nanomaterilas ...
  • Raw materials for mullite grog manufacturing 

    Nevřivová, Lenka (IOP Publishing, 2018-07-07)
    The primary condition for manufacturing is the correct choice of raw material, a suitable treatment facility, and a kiln capable of firing at temperatures above 1400 °C. This paper assesses some local raw materials for ...
  • Reactivity of meta-talc in sodium hydroxide medium 

    Bednárek, Jan; Ptáček, Petr; Šoukal, František; Havlica, Jaromír; Novotný, Radoslav; Másilko, Jiří; Šiler, Pavel (IOP Publishing, 2018-07-12)
    This work deals with the reactivity of XRD amorphous delaminated and dehydroxylated talc phase (meta-talc), in alkali medium. Talc ore Luzenac H70 was treated in a stirred ball mill (attritor) for 30; 60 and 90 min with ...
  • 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 ...
  • Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations 

    Mačák, Jaromír; Schimmel, Jiří (Springer Nature, 2011-04-07)
    The designing of algorithms for real-time digital simulation of analog effects and amplifiers brings two contradictory requirements: accuracy versus computational efficiency. In this paper, the simulation of a typical ...
  • Realisations of single-resistance-controlled quadrature oscillators using a generalised current follower transconductance amplifier and a unity-gain voltage-follower 

    Herencsár, Norbert; Vrba, Kamil; Koton, Jaroslav; Lahiri, Abhirup (Taylor & Francis, 2010-08-01)
    This article presents realisations of single-resistance-controlled-oscillators (SRCOs) using the recently proposed modern active building block (ABB), namely the generalised current follower transconductance amplifier ...
  • Realization of first-order current-mode filters with low number of MOS transistors 

    Yuce, Erkan; Minaei, Shahram; Herencsár, Norbert; Koton, Jaroslav (World Scientific Publishing Company, 2013-01-14)
    In this paper, a new current-mode (CM) circuit for realizing all of the first-order filter responses is suggested. The proposed configuration contains low number of components, only two NMOS transistors both operating in ...
  • Reconciliation of Decision-Making Heuristics Based on Decision Trees Topologies and Incomplete Fuzzy Probabilities Sets 

    Doubravský, Karel; Dohnal, Mirko (PLOS, 2015-07-09)
    Complex decision making tasks of different natures, e.g. economics, safety engineering, ecology and biology, are based on vague, sparse, partially inconsistent and subjective knowledge. Moreover, decision making economists ...
  • Reconfigurable Fractional-Order Filter with Electronically Controllable Slope of Attenuation, Pole Frequency and Type of Approximation 

    Jeřábek, Jan; Šotner, Roman; Dvořák, Jan; Polák, Josef; Kubánek, David; Herencsár, Norbert; Koton, Jaroslav (World Scientific Publishing, 2017-03-09)
    This paper presents design of electronically reconfigurable fractional-order filter that is able to be configured to operate as fractional-order low-pass filter (FLPF) or fractional-order high-pass filter (FHPF). Its slope ...
  • Reconstruction of an ellipse from its raster image 

    Hrdina, Jaroslav; Pavlík, Jan (Academic Publications, Ltd, 2015-04-14)
    Motivated by practical application, we investigate the ways how to obtain a description of an ellipse whose circumscribed rectangle is known exactly and whose coordinates of touching points are known up to a certain ...
  • Referencing in Scientific Practice: a Course for PhD. Students at BUT 

    Janečková, Hana (2017-09-20)
    The Central Library at Brno University of Technology (BUT) has a wide range of information literacy courses, workshops and instructions for students and academic staff. In the last three years PhD. students have become the ...
  • Registration of retinal sequences from new video-ophthalmoscopic camera 

    Kolář, Radim; Tornow, Ralf-Peter; Odstrčilík, Jan; Labounková, Ivana (BioMed Central, 2016-05-20)
    Analysis of fast temporal changes on retinas has become an important part of diagnostic video-ophthalmology. It enables investigation of the hemodynamic processes in retinal tissue, e.g. blood-vessel diameter changes as a ...
  • Release of ammonia from conventional power plant fly ash after the introduction of SNCR process 

    Beranová, Denisa; Opravil, Tomáš; Ptáček, Petr; Snop, Roman (IOP Publishing, 2018-07-12)
    The paper deals with a study of various factors affecting the release of ammonia from conventional power plant fly ash after introduction of SNCR (Selective non-catalytic reduction). SNCR is a method of flue gas denitrification ...
  • Reliability Analysis of Thin-walled Cylindrical Shells 

    Kala, Zdeněk (De Gruyter Open, 2015-12-31)
    The subject of the article is the verification of the reliability of thin-walled rotationally symmetric cylindrical shells, using probabilistic approaches. Internal forces and stress of the shell are analysed assuming a ...
  • Remote operation of the GOLEM tokamak with hydrogen and helium plasmas 

    Svoboda, Vojtěch; Dvornova, Anastasiia; Dejarnac, Renaud; Procházka, Michal; Zapryanov, Stanislav; Akhmetzhanov, Ruslan; Bogdanova, Maria; Dimitrova, Miglena; Dimitrov, Zhivko; Dřímalková, Lucie; Ivanov, Krasimir; Kruglov, Kirill; Marinova, Plamena; Masherov, Pavel; Mogulkin, Andrey; Mlynář, Jan; Stockel, Jan; Volynets, Andrey (IOP Science, 2016-11-04)
    The GOLEM tokamak was operated remotely via internet connection during the 6th International Workshop and Summer School on Plasma Physics. Performances of hydrogen and helium discharges are compared in this paper. It is ...
  • Repairing composite using hazardous waste containing heavy metals 

    Žlebek, Tomáš; Hodul, Jakub; Drochytka, Rostislav (IOP Publishing, 2018-07-16)
    This research deals with the possibility of using hazardous waste in epoxy resinbased polymeric substances. More specifically, it is the use of neutralising galvanic sludge (NGS), which produces as a by-product in the ...
  • Reported Hydration Beliefs and Behaviors without Effect on Plasma Sodium in Endurance Athletes 

    Chlíbková, Daniela; Rosemann, Thomas; Nikolaidis, Pantelis T.; Knechtle, Beat; Bednář, Josef (Frontiers, 2017-05-02)
    In summary, hydration beliefs and behaviours in the endurance athletes do not appear to affect the development of EAH.
  • Research Results in the Field of Information Support for Innovation Activities 

    Žižlavský, Ondřej; Šmakalová, Petra (Mendelova univerzita v Brně, 2011-06-28)
    The paper deals with an actual issue focused on one of the world wide problem - effective development of an innovation process in the company. Just innovation is deemed as an essential part of companys efficiency and its ...
  • Research to improve traction and dynamic quality of locomotives 

    Píštěk, Václav; Kučera, Pavel (JVE International, 2017-09-27)
    The article reviews and analyzes available theoretical and experimental studies aimed at improving the tractive and dynamic characteristics of locomotives. Based on the information received, the authors formulated the ...