Prohlížení Ústřední knihovna ČVUT dle názvu

Zobrazují se záznamy 658-677 z 2019

    • Evolution and Outbursts of Cataclysmic Variables 

      Autor: Qian, S.-B.; Zhu, L.-Y.; Zhao, E.-G.; Fernández Lajús, E.; Zhang, J.; Shi, G.; Han, Z.-T.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Mass transfer and accretion are very important to understand the evolution and observational properties of cataclysmic variables (CVs). Due to the lack of an accretion disk, eclipsing profiles of polars are the best source ...

    • Evolution of Massive Population III Stars 

      Autor: Yoon, Sung-Chul
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      While the evolution of massive stars in the local Universe is dominated by mass-loss, the evolution of massive Population III stars should be dominated by rotation. An important effect of rotation is rotationally-induced ...

    • EXACT RENORMALIZATION GROUP FOR POINT INTERACTIONS 

      Autor: Turgut Teoman, Osman Teoman Turgut; Eröncel , Cem
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Renormalization is one of the deepest ideas in physics, yet its exact implementation in any interesting problem is usually very hard. In the present work, following the approach by Glazek and Maslowski in the flat space, ...

    • Exact solutions for time-dependent complex symmetric potential well 

      Autor: Khantoul, Boubakeur; Bounames, Abdelhafid
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Using the pseudo-invariant operator method, we investigate the model of a particle with a time-dependent mass in a complex time-dependent symmetric potential well V (x, t) = if (t) |x|. The problem is exactly solvable and ...

    • EXAMPLES OF QUANTUM HOLONOMY WITH TOPOLOGY CHANGES 

      Autor: Cheon , Taksu; Tanaka , Atushi; Turek , Ondřej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We study a family of closed quantum graphs described by one singular vertex of order n = 4. By suitable choice of the parameters specifying the singular vertex, we can construct a closed path in the parameter space that ...

    • Excellence in building science education: Experiences with a Central European experiment 

      Autor: Mahdavi, Ardeshir; Martens, Bob; Pont, Ulrich; Schuss, Matthias; Teufl, Helene; Berger, Christiane
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The spectrum of educational programs in building science is wide and diverse. Whereas the academic landscapes across the world vary significantly, general discourse postulates certain rather broad characterizations. For ...

    • EXCEPTIONAL POINTS IN OPEN AND PT-SYMMETRIC SYSTEMS 

      Autor: Eleuch , Hichem; Rotter , Ingrid
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Exceptional points (EPs) determine the dynamics of open quantum systems and cause also PT symmetry breaking in PT symmetric systems. From a mathematical point of view, this is caused by the fact that the phases of the ...

    • Expansion of sustainability in the ACI 318 building code 

      Autor: Kelley, Shana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The American Concrete Institute (ACI) has long recognized the growing importance of accounting for environmental sustainability in the design of concrete structures. As the next version of the ACI 318 Building Code is being ...

    • Expected Hard X-Ray and Soft Gamma-Ray from Supernovae 

      Autor: Maeda, Keiichi; Terada, Yukikatsu; Bamba, Aya
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      High energy emissions from supernovae (SNe), originated from newly formed radioactive species, provide direct evidence of nucleosynthesis at SN explosions. However, observational diculties in the MeV range have so far ...

    • Experience with sleeper substructure design for a speed of 200 kph according to the S4 standard 

      Autor: Hubáčková, Dana; Říha, Tomáš; Dušek, Erik
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The paper deals with the sleeper substructure design for a speed of 200 kph according to the Czech SŽ S4 standard. The paper includes the design of sub-ballast and capping layers. The second part of the paper is focused ...

    • Experiencing circular design: Stories of agri-food waste transformed into new materials for architecture 

      Autor: Tedesco, Silvia; Montacchini, Elena; Andreotti, Jacopo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The application of the Circular Economy model, supported by the European Commission, can be the driver of an industrial and architectural conversion and, also, an opportunity to innovate production processes through the ...

    • EXPERIMENT EPSP - STAVBA ZÁTKY PRO HLUBINNÉ ÚLOŽIŠTĚ RADIOAKTIVNÍCH ODPADŮ V RÁMCI EVROPSKÉHO PROJEKTU DOPAS 

      Autor: Dvořáková M.; Hanusová I.; Svoboda J.; Vencl M.
      (Český tunelový komitet, 2014)
      Mezinárodní projekt DOPAS (Demonstration of Plugs and Seals), kterého se účastní 14 evropských organizací (Posiva, ANDRA, DBE-TEC, GRS, Nagra, NDA, SÚRAO, SKB, ČVUT, NRG, GSL, BTECH, VTT, ÚJV Řež, a. s.) je zaměřen na ...

    • EXPERIMENTAL ANALYSIS FOCUSED ON THE MATERIAL CHARACTERISTICS OF THE CEMENT-BASED POLYMER-MODIFIED MORTARS 

      Autor: Kucharczyková, Barbara; Šimonová, Hana; Halamová, Romana; Kocáb, Dalibor; Alexa, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The article deals with the experimental analysis focused on the development of the physical and mechanical characteristics of the cement-based polymer-modified mortars (PCM) during ageing. Two different commercial products ...

    • Experimental analysis of the railway truss bridge using modern methods 

      Autor: Kálalová, Petra; Polák, Michal; Stančík, Vojtěch
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Experimental analyses of civil engineering structures have been carried out for decades. While in the past, mainly static load tests of new structures were performed, a few severe accidents with fatal results caused a lot ...

    • EXPERIMENTAL AND NUMERICAL ASSESSMENT OF A LAST STAGE ST BLADE DAMPING AT LOW LOAD OPERATION 

      Autor: Bessone, Andrea; Carassale, Luigi; Guida, Roberto; Kubín, Zdeněk; Lo Balbo, Antonio Alfio; Brunenghi, Michela Marrè; Pinelli, Lorenzo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      As LP steam turbines are requested to work at strong part-loads, LSB stalled and unstalled flutter may occur. Testing on a downscaled steam turbine in T10MW test plant have been carried out to measure LSB aggregated damping ...

    • EXPERIMENTAL AND NUMERICAL INVESTIGATION OF CEMENT PASTE MICROSTRUCTURE AND ITS HYDRATION UNDER SHORT-TERM EXPOSURE TO ACETONE 

      Autor: Khmurovska, Yuliia; Štemberk, Petr; Němeček, Jiří; Doleželová, Magdaléna
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      The solvent exchange methods are commonly used in order to arrest cement hydration reaction. This paper presents preliminary results of experimental investigation of cement paste microstructure under short-term (24 hours) ...

    • EXPERIMENTAL AND NUMERICAL RESEARCH ON FLOW IN THE LAST STAGE OF 1090MW STEAM TURBINE 

      Autor: Hoznedl, Michal; Sedlák, Kamil
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The paper deals with experimental and numerical research in the last stage of real 1090MW steam turbine with the last steel blade length 1220mm placed in nuclear power station. The last stage was equipped with twelve static ...

    • EXPERIMENTAL AND NUMERICAL STUDY OF CONTROLLED FLUTTER TESTING IN A LINEAR TURBINE BLADE CASCADE 

      Autor: Sláma, Václav; Rudas, Bartoloměj; Eret, Petr; Tsymbalyuk, Volodymyr; Ira, Jiří; Macalka, Aleš; Pinelli, Lorenzo; Vanti, Federico; Arnone, Andrea; Lo Balbo, Antonio Alfio
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      In this paper, experimental testing of flutter and numerical simulations using a commercial code ANSYS CFX and an in-house code TRAF are performed on an oscillating linear cascade of turbine blades installed in a subsonic ...

    • Experimental and simulation study of CO2 breakthrough curves in a fixed-bed adsorption process 

      Autor: Nedoma, Marek; Staf, Marek; Hrdlička, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This paper focuses on the laboratory experiments of low-temperature adsorption of CO2 at elevated pressure and on the validation of our mathematical model with the data obtained. The numerical approach uses fitting of ...

    • EXPERIMENTAL CHARACTERIZATION OF A MAGNETOHYDRODYNAMIC POWER GENERATOR UNDER DC ARC PLASMA 

      Autor: Ayeleso Oluwaseun, Ayokunle; Kahn T. E., Mohamed
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The generation of electric power through the conventional systems (thermal and hydroelectric) is no longer sufficient to meet the increasing industrial and commercial usage. Therefore, an alternative energy conversion ...