Prohlížení Acta Polytechnica dle názvu

Zobrazují se záznamy 416-435 z 880

    • INFLUENCE OF AGGRESSIVE ENVIRONMENT ON THE TENSILE PROPERTIES OF TEXTILE REINFORCED CONCRETE 

      Autor: Machovec , Jan; Reiterman , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      This article deals with the long-term durability of a relatively new composite – textile reinforced concrete (TRC). The studied composite material introduces a modern and favourite solution in contemporary architecture and ...

    • Influence of carbonation on torrent air permeability of concrete 

      Autor: Jaskulski, Roman; Kubissa, Wojciech; Zapała, Dominika
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Air permeability testing is increasingly being used to measure the impermeability of concrete and to estimate the durability of reinforced concrete structures using this property. This paper presents the results of a ...

    • INFLUENCE OF CHEMICAL POLYMER ADDITIVE ON THE PHYSICAL AND MECHANICAL PROPERTIES OF EXPANDED POLYSTYRENE CONCRETE 

      Autor: Wasiu , John; Baba , Daoud Mohammad
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      This research investigated the effect of Renolith chemical polymer additive (RCPA) on the properties of expanded polystyrene (ESP) concrete. Renolith chemical additive is a polymer-based product in a liquid form made up ...

    • INFLUENCE OF SUBSTRATE THICKNESS ON DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE PROPERTIES 

      Autor: Čech , Jan; Zemánek , Miroslav; Sťahel , Pavel; Dvořáková , Hana; Černák , Mirko
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      In presented work the influence of dielectric barrier thickness on the parameters of Diffuse Coplanar Surface Barrier Discharge was investigated. The discharge was operated at atmospheric pressure laboratory air. The ...

    • Influence of the Amount of Master Alloy on the Properties of Austenitic Stainless Steel AISI 316L Powder Sintered in Hydrogen 

      Autor: Skaloń , Mateusz; Kazior , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      AISI 316L austenitic stainless steel powder was modified with four different amounts of boron (0.1; 0.2; 0.3; 0.4 of wt. %) in the form of MasterAlloy micro-powder, and was sintered in a pure dry hydrogen atmosphere in ...

    • INFLUENCE OF THE RESULTS OF UHECR DETECTION ON THE LHC EXPERIMENTS 

      Autor: Petrukhin, Anatoly A.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The cosmic ray energy region 1015 ÷ 1017TeV corresponds to LHC energies 1 ÷ 14TeV in the center-of-mass system. The results obtained in cosmic rays (CR) in this energy interval can therefore be used for developing new ...

    • Influence of the Surface Layer when the CMT Process Is Used for Welding Steel Sheets Treated by Nitrooxidation 

      Autor: Michalec , I.; Marônek , M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Nitrooxidation is a non-conventional surface treatment method that can provide significantly improved mechanical properties as well as corrosion resistance. However, the surface layer is a major problem during the welding ...

    • Influence of Various Process Parameters on the Density of Sintered Aluminium Alloys 

      Autor: Laska , Mateusz; Kazior , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents the results of density measurements carried out on Alumix sintered parts. ECKA Alumix aluminium powders were used because of their wide application in the powder metallurgy industry. The compacts were ...

    • INFORMATION AND ANALYTICAL SYSTEM FOR HAZARD LEVEL ASSESSMENT AND EMERGENCY RISK FORECASTING 

      Autor: Yemelin V., Pavel; Kudryavtsev S., Sergey; Yemelina K., Natalya
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The purpose of the article is to present an analytical system that allows users to proces data necessary for an industrial risk analysis and management, to monitor the level of industrial safety in a given site, and to ...

    • INFRARED PHOTOLUMINESCENCE SPECTRA OF PBS NANOPARTICLES PREPARED BY LANGMUIR–BLODGETT AND LASER ABLATION METHODS 

      Autor: Remes , Zdeněk; Novak , Tomas; Stuchlik , Jiri; Stuchlikova , The-ha; Dřínek , Vladislav; Fajgar , Radek; Zhuravlev , Konstantin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      We optimized the optical setup originally designed for the photoluminescence measurements in the spectral range 400‒1100 nm. New design extends the spectral range into the near infrared region 900‒1700 nm and allows the ...

    • Inherited Properties of Effect Algebras Preserved by Isomorphisms 

      Autor: Paseka , Jan; Riečanová , Zdenka
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We show that isomorphism of effect algebras preserves properties of effect algebras derived from effect algebraic sum ? of elements. These are partial order, order convergence, order topology, existence of states and other ...

    • INHIBITION OF CANDIDA ALBICANS GROWTH ON SURFACES TREATED BY DIELECTRIC BARRIER DISCHARGE WITH VARIOUS BARRIERS 

      Autor: Sláma , Jan; Kríha , Vítezslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Discharges generating low temperature plasma at atmospheric pressure have the potential to treat surfaces biologically contaminated by organic matter in a non-destructive manner. We have been studying ways of inhibiting ...

    • INITIAL FOLLOW-UP OF OPTICAL TRANSIENTS WITH COLORES USING THE BOOTES NETWORK 

      Autor: Caballero-Garcia D., Maria; Jelinek , M.; Castro-Tirado , A.; Hudec , R.; Cunniffe , R.; Rabaza , O.; Sabau-Graziati , L.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      The Burst Observer and Optical Transient Exploring System (BOOTES) is a network of telescopes that allows the continuous monitoring of transient astrophysical sources. It was originally devoted to the study of the optical ...

    • INJECTION MOLDING AND STRUCTURAL ANALYSIS IN METAL TO PLASTIC CONVERSION OF BOLTED FLANGE JOINT BY CAE 

      Autor: Blaško, Marian; Tittel, Viktor; Náplava, Antonín; Ondruška, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Many metal parts in various applications are being replaced by plastic parts. There are several reasons for that depending on actual application - minimize part cost, enhance corrosion resistance, integrating more components ...

    • Instability Growth Rate Dependence on Input Parameters During the Beam–Target Plasma Interaction 

      Autor: Horký , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The two-stream instability without magnetic field is described by the well-known Buneman dispersion relation. For more complicated situations we need to use the Generalized Buneman Dispersion Relation derived by Kulhánek, ...

    • INTEGRAL METHODS FOR DESCRIBING PULSATILE FLOW 

      Autor: Hromadka , David; Chlup , Hynek; Žitný , Rudolf
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      This paper presents an approximate solution of the pulsatile flow of a Newtonian fluid in the laminar flow regime in a rigid tube of constant diameter. The model is represented by two ordinary differential equations. The ...

    • Integration of Autonomous UAVs into Multi-agent Simulation 

      Autor: Selecký , Martin; Meiser , Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In recent years, Unmanned Aerial Vehicles (UAVs) have attracted much attention both in the research field and in the field of commercial deployment. Researchers recently started to study problems and opportunities connected ...

    • Integration of the Watcher Telescope into the Sierra Stars Observatory Network – Lessons Learned for GLORIA 

      Autor: Topinka , Martin; Hanlon , Lorraine; Meehan , Seamus
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The UCD Watcher robotic telescope is planning to participate in the Sierra Stars Observatory Network (SSON), a US-based organisation that provides astronomical images upon request to subscribing users, who are typically ...

    • INTELLIGENT CONTROLLER FOR TRACKING A 14-INCH CELESTRON TELESCOPE 

      Autor: Attia A., Abdel-Fattah
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The paper proposes a design of two fuzzy and Proportional-Integral-Derivative (PID) controllers for a position tracking of the 1400 Celestron telescope. The position responses; right ascension and declination in such a way ...

    • Intervals in Generalized Effect Algebras and their Sub-generalized Effect Algebras 

      Autor: Riečanová , Zdenka; Zajac , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We consider subsets G of a generalized effect algebra E with 0∈G and such that every interval [0, q]G = [0, q]E ∩ G of G (q ∈ G , q ≠ 0) is a sub-effect algebra of the effect algebra [0, q]E. We give a condition on E and ...