Zobrazují se záznamy 41-60 z 2019

    • Providing stability to a highway cut in a landslide area with the use of diaphragm wall panels 

      Autor: Fišer, Zdeněk; Kopecký, Miloslav; Ondrášik, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The route of the D1 highway in the Lietavská Lúčka - Dubná Skala section near Žilina is taken forward by a 17 m deep cut in a section about 300 m long. The first proposed solution of the highway route was based on the ...
    • Application of an artificial intelligence segmentation for deep hyperthermia treatment planning in the pelvic region 

      Autor: Drizdal, Tomas; Novak, Marek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      During a microwave hyperthermia oncology treatment, the target region temperature is elevated to the temperatures of 40–44 °C, which improves the therapeutic effect of a standard radiotherapy and/or chemotherapy treatments. ...
    • 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 ...
    • Determining 3D coordinates based on the track geometry description 

      Autor: Hlubuček, Adam
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This paper is focused on the data description of the railway infrastructure. Its aim is to present the possibilities of constructing of linear elements representing tracks in 2D and their subsequent transformation into 3D ...
    • Evaluation of ATLHAMC12 subchannel code for total loss of flow scenario 

      Autor: Křeček, Tomáš; Foral, Štěpán
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The ALTHAMC12 subchannel code is a new subchannel code developed by the ALVEL company. The code is intended for DNBR safety analyses of the Czech nuclear power plants. In order to validate the code, a code to code comparison ...
    • Artificial intelligence in operational applications of railway infrastructure manager 

      Autor: Šrámek, Přemysl; Široký, Jaromír; Vojtek, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The main goal of this article is to present the possibility of using artificial intelligence in operational application of railway infrastructure manager. Railway 4.0 can be controlled fully digitally – operational ...
    • Simulation assessment of the headway under the ETCS L3 

      Autor: Nachtigall, Petr; Tischer, Erik
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This paper deals with a simulation assessment of the impact of the introduction of ETCS L2 and L3 on the capacity of railway lines. The simulation itself is carried out in the OpenTrack simulation software, especially in ...
    • Recycled materials for sublayers 

      Autor: Svoboda, Richard; Hubáčková, Dana; Valehrach, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The article focuses on the recycled materials used in sleeper substructure. In the introduction, it summarizes the requirements for bearing layers of railway substructure and recycling of waste construction materials. The ...
    • Proposal of operational concept for bulk substrates transport by freight trains and its application within case study of aggregate transport for construction of Vlachovice dam 

      Autor: Jacura, Martin; Týfa, Lukáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Railway freight transport represents an advantageous way for regular transport of bulk substrates. As a result of changes within the industry and energy sectors as well as in the field of consumer behaviour, such business ...
    • Length of transfer time between connecting trains – is there an ideal value? 

      Autor: Froněk, Jan; Chlumecký, Jaroslav; Vymětal, Daniel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Quality public transport is an essential part of global mobility. In general, there is an effort to ensure that as many transport users as possible use public transport. The public transport subsystems also include rail ...
    • Effect of heat-treatment on material properties of L-DED printed austenistic alloy 08CH18N10T for nuclear reactor applications 

      Autor: Jedlan, Štěpán; Ševeček, Martin; Prantl, Antonín; Hodek, Josef; Podaný, Pavel; Brázda, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This paper deals with the evaluation of material properties of the additively manufactured austenistic alloy 08CH18N10T, which is widely used in the Czech Republic nuclear power plants Temelín and Dukovany and other VVER ...
    • Ecological solutions for freight trains 

      Autor: Chýle, Martin; Drábek, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The article presents the potential of freight railway transport in terms of saving of emissions and maximizing the efficiency of operation. Attention is paid to the transport of freight trains on electrified lines with ...
    • The influence of the construction of tram fronts on the consequences of accidents with passenger cars 

      Autor: Seidl, Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      In recent years, there has been a large increase in passenger and public transport in cities. An increase in traffic flow results in an increasing risk of accidents. Manufacturers and operators of trams are increasingly ...
    • The measurement of the influence of the adhesion loss on the dynamic load of the drive reaction rod on the roller rig 

      Autor: Dybala, Vojtěch
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The dynamic behaviour and dynamic phenomena in traction drives of railway vehicle has been studied for decades. Generally, in these days the motivation for this research is to look for answers related with service problems, ...
    • Application of ontology/conceptual modelling in the context of risk identification at level crossings 

      Autor: Kohout, Tomáš; Nouzovský, Luboš; Vrtal, Pavel; Kocián, Karel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This conference paper discusses a new analytical approach to the evaluation of traffic safety at the railway crossings. The new method is based on the use of ontological principles. The ontological tools present a comprehensive ...
    • Integral railway interlocking system and its assessment according to European standards 

      Autor: Brandejský, Tomáš; Fábera, Vít; Leso, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      This paper analyses the component of the Integrated Interlocking System which forms the central logical and functional unit implementing all logical and computational functions necessary for railway traffic control in the ...
    • Simulation of the compression test of the Zr1Nb fuel cladding ring 

      Autor: Smolík , Vojtěch; Endrychová, Alžběta; Krejčí, Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Fuel cladding is a first protective barrier against the loss of fission products that must withstand extreme conditions, from normal operation to final and interim dry storage. This hostile environment results in mechanical ...
    • Expert questionnaire on the issue of economical use of the railway traffic path capacity and buildings preparation on the railway 

      Autor: Purkart, Pavel; Vodák, David
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The railway traffic path capacity and the issue of railway buildings planning are topics that are widely discussed in professional groups. Experts often do not the same opinions on these topics. The issue of the allocation ...
    • Neutronic analysis of a heat-pipe cooled reactor 

      Autor: Sabol, Josef; Frýbort, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Heat-pipe cooled reactors belong to the group of nuclear reactors using heat pipes filled with liquid metals (such as sodium or potassium) to cool the core. Due to the passive heat removal system, there is no need to use ...
    • Benefits of remote control on the railway lines 

      Autor: Křižan, Lukáš; Vojtek, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Railway transport in the Czech Republic largely uses transit corridors, which are significantly more used than the rest of the railway network. This assumption leads to an increase in the safety of these lines and gradual ...