Browsing Ústřední knihovna ČVUT by Title

Now showing items 1749-1768 of 2019

    • THE AHARONOV-BOHM HAMILTONIAN WITH TWO VORTICES REVISITED 

      Author: Košťáková , Petra; Stovicek , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      We consider an invariant quantum Hamiltonian H = −ΔLB + V in the L2 space based on a Riemannian manifold ˜M with a discrete symmetry group Γ. To any unitary representation Λ of Γ one can relate another operator on M = ˜M ...

    • THE ANALYSIS OF IMAGES IN N-POINT GRAVITATIONAL LENS BY METHODS OF ALGEBRAIC GEOMETRY 

      Author: Kotvytskiy , Albert; Bronza , Semen; Shablenko , Vladimir
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      This paper is devoted to the study of images in N-point gravitational lenses by methods of algebraic geometry. In the beginning, we carefully define images in algebraic terms. Based on the definition, we show that in this ...

    • The assessment of priorities in the construction of new high-speed railway lines in Czech Republic by using the stem method 

      Author: Purkart, Pavel; Kruntorád, Jan; Týfa, Lukáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The aim of the paper is to set priority of The Fast Connection sections ("Rychlá spojení" in Czech, abbreviation "RS") building mentioned above by using the STEM method. The method is used to select projects with the maximum ...

    • THE ASTRO-H MISSION 

      Author: Maeda, Yoshitomo; Takahashi, Tadayuki; Mitsuda, Kazuhisa; Kelley, Richard
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      A review of the Astro-H mission is presented here on behalf of the Astro-H collaboration. The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space ...

    • The Asymptotic Properties of Turbulent Solutions to the Navier-Stokes Equations 

      Author: Skalák , Zdenek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In this paper we study the large time behavior of solutions to the Navier-Stokes equations. We present a brief survey of results concerning energy decay, and discuss a related phenomenon of the large time energy concentration ...

    • THE AUGER ENGINEERING RADIO ARRAY 

      Author: Weidenhaupt, Klaus
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations. Its unique site, embedded into the ...

    • THE BÍLINA TUNNEL – SELECTED GEOTECHNICAL ASPECTS OF A PROPOSED UNDERGROUND STRUCTURE 

      Author: Sotorník, Viktor; Černoch, Petr; Košťál, Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Every workday the city of Bílina, with the I/13 road running through it, suffers from traffic congestion. The road is designed as dual carriageway outside Bílina but only as a single carriageway inside the city. Three ...

    • THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT 

      Author: Kolaříková, Marie; Chotěborský, Rostislav; Hromasová, Monika; Linda, Miloslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The coating on the 22MnB5 steel is intended to protect it against oxidation during the forming process. This steel is hot-pressed. A preheating before the pressing and subsequent hardening in the tool affects the properties ...

    • THE CHARACTERIZATION OF ANODIC OXIDE LAYERS ON SELECTED BIO-COMPATIBLE TITANIUM ALLOYS 

      Author: Krčil , Jan; Mára , Vladimír; Krum , Stanislav; Sobotová , Jana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Oxide layers on titanium alloy surfaces have an influence on bio-compatibility and corrosion resistance. In order to improve them, properties of oxide layers are examined. The oxide layer can be prepared by different methods ...

    • The characterization of the collimated beams of fast neutrons with the clid detection system 

      Author: Ansorge, Martin; Novák, Jan; Majerle, Mitja; Kozic, Ján
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      A new detection device for the measurements of light ions (p, d, t, α) emitted as the products of the nuclear reactions induced by fast neutrons (5-33 MeV) was recently developed at the Nuclear Physics Institute of the ...

    • The classification of eye diseases from fundus images based on CNN and pretrained models 

      Author: Benbakreti, Samir; Benbakreti, Soumia; Ozkaya, Umut
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Visual impairment affects more than a billion people worldwide due to insufficient care or inadequate vision screening. Computer-aided diagnosis using deep neural networks is a promising approach, it can analyse and process ...

    • THE CONDENSATION OF WATER VAPOUR IN A MIXTURE CONTAINING A HIGH CONCENTRATION OF NON-CONDENSABLE GAS IN A VERTICAL TUBE 

      Author: Havlík , Jan; Dlouhý , Tomáš; Krempaský , Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      This paper deals with the condensation of water vapour possessing a content of noncondensable gas in vertical tubes. The condensation of pure steam on a vertical surface is introduced by the Nusselt condensation model. ...

    • The Construction of the Fast Resistive Bolometer for a SXR Measurement on the GIT-12 Facility 

      Author: Cikhardt , Jakub; Klír , Daniel; Kubeš , Pavel; Kravárik , Josef; Rezác , Karel; Šíla , Ondrej; Shishlov , Alexander V.; Labetsky , Alexey Yu.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      A lot of kinds of instruments are used for the SXR measurement at pulsed power facilities, but most of them are difficult to calibrate absolutely. For the determination of the energy of SXR radiated by the discharge on ...

    • THE COUPLED-CLUSTER APPROACH TO QUANTUM MANY-BODY PROBLEM IN A THREE-HILBERT-SPACE REINTERPRETATION 

      Author: Bishop F., Raymond; Znojil , Miloslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The quantum many-body bound-state problem in its computationally successful coupled cluster method (CCM) representation is reconsidered. In conventional practice one factorizes the groundstate wave functions |Ψ) = eS |Φ) ...

    • THE CURRENT VIEW ON THE USE OF RECONSTRUCTION MATERIALS IN DENTISTRY 

      Author: Vrbova, Radka; Bradna, Pavel; Bartos, Martin; Himmlova, Lucie; Horazdovsky, Tomas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The hardest tissue in the human body is the enamel which covers the anatomical crowns of teeth. It must be resistant to mechanical stress and the chemical attack of many substances from food, drinks and products of the ...

    • The Czech Contribution to Future Large X-Ray Astronomy Telescopes: Recent Progress 

      Author: Hudec , René; Pína , Ladislav; Inneman , Adolf; Černá , Daniela; Maršíková , Veronika; Tichý , Vladimír; Míka , Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We briefly review the recent status of the Czech contribution to future space X-ray astronomy missions with emphasis on the development of new technologies and test samples of X-ray mirrors with precise surfaces based on ...

    • THE DETAILED PRIORITY OF INTERNATIONAL FREIGHT EXPRESSES IN THE OVERLAPPING SECTION OF RFC 7 AND RFC 9 KOLÍN – CHOCEŇ 

      Author: Šrámek, Přemysl; Molková, Tatiana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The main goal of this article is to research the optimal priority of international freight expresses, especially on European freight corridors. This article shows this problem in the context in the overlapping section of ...

    • THE DEVELOPMENT OF A NEW ADSORPTION-DESORPTION DEVICE 

      Author: Gabrišová , Ľudmila; Peciar , Peter; Macho , Oliver; Juriga , Martin; Galbavá , Paulína; Nižnanská , Žofia; Kubinec , Róbert; Valent , Ivan; Peciar , Marián
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      The aim of this work was to construct a new adsorption-desorption device based on the principle of separation of volatile organic compounds, e.g., ethanol. As an adsorbent, it is possible to use granulated activated carbon ...

    • THE DISCOVERY OF THE CHANDRASEKHAR MASS AND THE CHANDRASEKHAR-EDDINGTON CONTROVERSY 

      Author: Shaviv, Giora
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The so called Chandrasekhar limiting mass is a a quantum mechanical relativistic effect. The discovery and establishment of the concept involved a major controversy between the young Chandrasekhar and the hilarious Eddington. ...

    • THE DUBINS TRAVELING SALESMAN PROBLEM WITH CONSTRAINED COLLECTING MANEUVERS 

      Author: Váňa, Petr; Faigl, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      In this paper, we introduce a variant of the Dubins traveling salesman problem (DTSP) that is called the Dubins traveling salesman problem with constrained collecting maneuvers (DTSP-CM). In contrast to the ordinary ...