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Zobrazují se záznamy 19459-19478 z 56012

    • Measurement of local mechanical characteristics of marble by broadband ultrasonic structuroscopy 

      Autor: Kravcov A.; Shibaev I.
      (University of Mysore, 2019)
      The internal structure of marble is investigated. A precise measurement of the speeds of longitudinal and moving waves in marble samples. The internal structure of samples is visualised and localised microcracks. The ...

    • Measurement of multi-antenna communication channels - study of upper bound channel capacity based on eigenvalue decomposition 

      Autor: Tomáš Janák; Vedoucí práce: Karásek Rostislav; Oponent práce: Walter Michael
      (České vysoké učení technické v Praze. Vypočetní a informační centrum.Czech Technical University in Prague. Computing and Information Centre., 2019-06-03)
      Tématem této práce je posouzení kvality bezdrátového přenosu uvnitř budovy, zejména s ohledem na využití multianténních systémů. Obsahem práce jsou teoretické základy bezdrátové komunikace pro MIMO kanály, kdy jsou brány ...

    • MEASUREMENT OF NEUTRON SPATIAL DISTRIBUTION OF THE BNCT EPITHERMAL BEAM AT THE REACTOR LVR-15 

      Autor: Rabochová, Michaela; Vinš, Miroslav; Šoltés, Jaroslav; Michalcová, Božena
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      In this study, a measurements of neutron field using a special positioning device with a 6Li + Si detector and image plate is described. The measurements were provided for Boron Neutron Capture Therapy (BNCT) channel of ...

    • Measurement of Nonlinearity as a Diagnostic Tool for Quality Determination of Lead-Free Solder Joints 

      Autor: Duraj, Aleš; Bušek, David; Mlích, Andrej
      (IEEE, 2007-05)
      At present there are directions RoHS-WEEE in European Union which restrict the use of certain hazardous substances in new electric and electronic products. Therefore mass usage of lead-free soldering in electronic production ...

    • MEASUREMENT OF O2 IN COMBUSTION CHAMBER WITH AN ANALYSIS OF THE BURN OUT RATIO 

      Autor: Bartoš O.; Kolovratník M.; Janeba B.
      (Association for Promotion of Holistic Approach to Environment, 2015)
      An aim of this experimental research work was to achieve more detailed information about the combustion process in pulverized coal boilers. An O2 analyser was developed and manufactured for the measurement of O2volumetric ...

    • Measurement of O2 in the Combustion Chamber of Apulverized Coal Boiler 

      Autor: Janeba , Břetislav; Kolovratník , Michal; Bartoš , Ondřej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Operational measurements of the O2 concentration in the combustion chamber of a pulverized coal boiler are not yet common practice. Operators are generally satisfied with measuring the O2 concentration in the second pass ...

    • Measurement of solid particle emissions from oxy-fuel combustion of biomass in fluidized bed 

      Autor: Červený, Ondřej; Vybíral, Pavel; Hemerka, Jiří; Mareš, Luďek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The presented work summarizes the results of the measurement of solid particle emissions from an experimental 30 kW combustion unit. This unit has been used for the research of oxy-fuel combustion of biomass in a fluidized ...

    • MEASUREMENTS ON THE VT 400 AIR TURBINE 

      Autor: Klimko , Marek; Okresa , Daniel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      This paper presents a basic description of measurements on the experimental air turbine located in the laboratories of the Department of Power System Engineering (KKE). The research on this turbine focuses on the flow in ...

    • Measuring with Magnetoresistive Sensors 

      Autor: Vopálenský, Michal
      (2014-09-09)

    • Measuring circularity from buildings to neighbourhoods 

      Autor: Gomes , Vanessa; Valdivia, Sara; Pulgrossi, Lizzie; Gomes da Silva, Maristela
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The circular economy (CE) aims to eliminate the concept of pollution and waste generation, maintain the integrity of the product over several use cycles, and focus on closing material and energy loops. Circularity metrics ...

    • Measuring Repeatability of the Focus-variable Lenses 

      Autor: Řezníček J.
      (Czech Technical University in Prague, 2014)
      In the field of photogrammetry, the optical system, usually represented by the glass lens, is used for metric purposes. Therefore, the aberration characteristics of such a lens, inducing deviations from projective imaging, ...

    • MEASURING SUPERMASSIVE BLACK HOLE SPINS IN AGN 

      Autor: Brenneman, Laura
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Measuring the spins of supermassive black holes (SMBHs) in active galactic nuclei (AGN) can inform us about the relative role of gas accretion vs. mergers in recent epochs of the life of the host galaxy and its AGN. Recent ...

    • Measuring Transient I/V Turn-On Behavior of a Power MOSFET without a Current Sensor 

      Autor: Helmut, Dennis; Groos, Gerhard; Wachutka, Gerhard; Schrag, Gabriele
      (České vysoké učení technické v Praze. České centrum IET, 2021)
      Double pulse test (DPT) is usually used to characterize and verify turn-on/turn-off operation of power switches. Yet, new high frequency switching devices based on SiC and GaN technologies require much more elaborate ...

    • MECHANICAL AND CHEMICAL ACTIVATION OF BLAST FURNACE SLAG AND ITS INFLUENCE ON THE MECHANICAL PROPERTIES OF THE RESULTING CEMENT PASTE 

      Autor: Horych, Jan; Tesárek, Pavel; Prošek, Zdeněk
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The usage of waste materials is a very important global topic. The large amount of waste everywhere in the world needs to be processed or disposed. Landfilling is not an option anymore, because of European legislation and ...

    • Mechanical and durability performance of cementitious matrices with low cement and different additions 

      Autor: Soldado, Eliana; Antunes, Ana; Costa, Hugo; Carmo, Ricardo; Júlio, Eduardo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Nowadays, the decarbonization of the concrete sector is a priority to counteract the global environmental harmful. Knowing that Portland cement is responsible for significant anthropogenic emissions worldwide, the optimization ...

    • MECHANICAL AND IMAGE ANALYSIS OF ADHESION BETWEEN MINERAL AGGREGATE AND BITUMINOUS BINDER 

      Autor: Trejbal, Jan; Valentová, Tereza; Nežerka, Václav; Semerák, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      Asphalt mixtures often fail due to poor interaction between mineral aggregate and bituminous binder. Therefore, many efforts are being made on adhesion improvement between the two materials. In this work, paving grade ...

    • MECHANICAL AND OPTICAL INVESTIGATION OF LASER WELDED STRUCTURAL STEEL - POLY(METHYL-METHACRYLATE) HYBRID JOINT STRUCTURES 

      Autor: Csizér, Tamás; Temesi, Tamás; Molnár, László
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Modern welding processes that can easily be automated (such as friction stir welding, laser welding and ultrasonic welding) are gaining popularity in joining metal-polymer hybrid structures. This field of science is ...

    • Mechanical and physical properties of cement mixtures for 3D processing 

      Autor: Litoš, Jiří; Šána, Vladimír; Uhlík, Adam; Kolář, Karel; Nguyen, Markéta
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      In this paper, information about cementitious composite materials for further 3D processing is discussed and supplemented. Many of the research in this area focuses primarily on cement composites suitable for 3D printing. ...

    • MECHANICAL AND STRUCTURAL PROPERTIES OF COLLAGEN NANOFRIBROUS LAYERS UNDER SIMULATED BODY CONDITIONS 

      Autor: Říhová, Jitka; Suchý, Tomáš; Vištejnová, Lucie; Horný, Lukáš; Šupová, Monika
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The theme of this paper is the analysis of mechanical and structural properties of nanofibrous COL under simulated body conditions and in the presence of osteoblasts and dermal fibroblasts. COL were prepared by electrostatic ...

    • Mechanical characteristics of historical beams of Picea spp. wood. 

      Autor: Sotomayor Castellanos Javier Ramón; Vedoucí práce: Kuklík Petr
      (České vysoké učení technické v Praze. Vypočetní a informační centrum., 2012-07-27)