Prohlížení Acta Polytechnica dle názvu

Zobrazují se záznamy 467-486 z 880

    • Long-Lived Plasma Process, Created by Impulse Discharge in Micro-Disperse Droplet Environment 

      Autor: Olszewski , Serge; Lisitchenko , Tamara; Yukhymenko , Vitalij
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The processes of organic compound (phenol and cation-active surfactants) destruction in water solutions, which stay under the influence of plasma treatment have been investigated in different dynamic plasma-liquid systems ...

    • Low earth orbit nanosatellite: influence of heat dissipation on passive thermal analysis 

      Autor: Akka, Amine; Benabdelouahab, Farid; Yerrou, Randa
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The use of small satellites in ambitious missions presents challenges related to thermal breakdowns as one of the critical issues contributing to their failure. Heat dissipation and thermal management are still the major ...

    • LOW LEAKAGE CHARGE RECYCLING TECHNIQUE FOR POWER MINIMIZATION IN CNTFET CIRCUITS 

      Autor: Kavitha , Manickam; Kalpana M., Alagar
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Carbon Nanotube Field Effect Transistor (CNTFET) is one of the most promising candidates in the near future for digital design due to its better electrostatics and higher mobility characteristics. Parameters that determine ...

    • LOW-MASS BINARY X-RAY SOURCES: MONITORING WITH VARIOUS SATELLITES 

      Autor: Šimon , Vojtěch
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      We show the importance of observing low-mass binary (LMXB) X-ray sources with the X-ray monitors onboard satellites. This enables us to study the physical processes governing the longterm activity of LMXBs. They are excellent ...

    • Luiza: Analysis Framework for GLORIA 

      Autor: Żarnecki , Aleksander Filip; Piotrowski , Lech Wiktor; Mankiewicz , Lech; Małek , Sebastian
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The Luiza analysis framework for GLORIA is based on the Marlin package, which was originally developed for data analysis in the new High Energy Physics (HEP) project, International Linear Collider (ILC). The HEP experiments ...

    • MAGNETRON SPUTTERING WITH HOT SOLID TARGET: THERMAL PROCESSES AND EROSION 

      Autor: Borduleva Olegovna, Alena; Bleykher Alekseevna, Galina; Sidelev Vladimirovich, Dmitrii; Krivobokov Pavlovich, Valeriy
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      This work focuses on erosion and thermal processes taking place on the surface of the titanium target in magnetron sputtering. The study was carried out using magnetron sputtering systems (MSS) with different thermal ...

    • Marine diesel engines operating cycle simulation for diagnostics issues 

      Autor: Minchev, Dmytro S.; Varbanets, Roman A.; Alexandrovskaya, Nadiya I.; Pisintsaly, Ludmila V.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The ongoing monitoring of marine diesel engines helps to detect the deviations of its parameters early and prevent major failures. But the experimental diagnostics data are generally limited, so frequently, it isn’t possible ...

    • Massive Parallelization of Multibody System Simulation 

      Autor: Valášek , Michael; Mráz , Ladislav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with the decrease in CPU time necessary for simulating multibody systems by massive parallelization. The direct dynamics of multibody systems has to be solved by a system of linear algebraic equations. ...

    • Materials for Fusion Applications 

      Autor: Matějíček , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      An overview of materials foreseen for use or already used in fusion devices is given. The operating conditions, material requirements and characteristics of candidate materials in several specific application segments are ...

    • MATHEMATICAL ALGORITHM OF FUZZY LOGIC CONTROLLER FOR MULTILEVEL INVERTER CREATING VERTICAL DIVIDED VOLTAGE 

      Autor: Can , Erol
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      A 9-level inverter with a boost converter has been controlled with a fuzzy logic controller and a PID controller for regulating output voltage applications on resistive (R) and inductive (L), capacitance (C). The mathematical ...

    • MAXIMAL SUBSETS OF PAIRWISE SUMMABLE ELEMENTS IN GENERALIZED EFFECT ALGEBRAS 

      Autor: Riečanová , Zdenka; Janda , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We show that in any generalized effect algebra (G;⊕, 0) a maximal pairwise summable subset is a sub-generalized effect algebra of (G;⊕, 0), called a summability block. If G is lattice ordered, then every summability ...

    • Maxwell-Chern-Simons-Higgs theory 

      Autor: Kulshreshtha, Usha; Kulshreshtha, Daya Shankar; Sihagb, Bheemraj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      We consider the three dimensional electrodynamics described by a complex scalar field coupled with the U(1) gauge field in the presence of a Maxwell term, a Chern-Simons term and the Higgs potential. The Chern-Simons term ...

    • Measurement of a quantum particle position at two distant locations: a model 

      Autor: Dittrich, Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      A simplified one-dimensional model of measurement of the position of a quantum particle by two distant detectors is considered. Detectors are modelled by quantum particles bounded in potential wells with just two bound ...

    • 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 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 ...

    • 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 DISINTEGRATION OF WHEAT STRAW BY ROLLER-PLATE GRIND SYSTEM WITH SHARP-EDGED SEGMENTS 

      Autor: Kratky , Lukas; Jirout , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Colloid mills and extruders are widely used for disintegrating wet fibrous biomass. However, their main disadvantages are a high energy requirement in the range of hundreds or thousands of kWh per ton of material, and the ...

    • MECHANICAL PROPERTIES OF PVA NANOFIBER TEXTILES WITH INCORPORATED NANODIAMONDS, COPPER AND SILVER IONS 

      Autor: Indrová , Kateřina; Prošek , Zdeněk; Topič , Jaroslav; Ryparová , Pavla; Nežerka , Václav; Tesárek , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      The unique properties of nanotextiles based on poly(vinyl-alcohol) (PVA) manufactured using electrospinning method have been known and exploited for many years. Recently, the enrichment of nanofiber textiles with nanoparticles, ...