Prohlížení Ústřední knihovna ČVUT dle názvu

Zobrazují se záznamy 340-359 z 2019

    • COMPARING THE HOEK-BROWN AND MOHR-COULOMB FAILURE CRITERIA IN FEM ANALYSIS 

      Autor: Poklopová, Tereza; Pavelcová, Veronika; Šejnoha, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      This paper revisits the issue of a potential substitutions of the Hoek-Brown failure model by the standard Mohr-Coulomb model in the stability analysis of rock masses. The derivation of equivalent shear strength parameters ...

    • Comparision of the walk techniques for fitness state space analysis in vehicle routing problem 

      Autor: Agárdi, Anita; Kovács, László; Bányai, Tamás
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The Vehicle Routing Problem (VRP) is a highly researched discrete optimization task. The first article dealing with this problem was published by Dantzig and Ramster in 1959 under the name Truck Dispatching Problem. Since ...

    • COMPARISON BETWEEN 2D TURBULENCE MODEL ESEL AND EXPERIMENTAL DATA FROM AUG AND COMPASS TOKAMAKS 

      Autor: Ondac , Peter; Horacek , Jan; Seidl , Jakub; Vondrácek , Petr; Müller Werner, Hans; Adámek , Jirí; Nielsen Henry, Anders
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      In this article we have used the 2D fluid turbulence numerical model, ESEL, to simulate turbulent transport in edge tokamak plasma. Basic plasma parameters from the ASDEX Upgrade and COMPASS tokamaks are used as input for ...

    • Comparison between concrete stress diagrams according to the Brazilian standard ABNT NBR 6118: 2014 

      Autor: Oliveira, Victor Hugo Dalosto de; Carvalho, Rodolfo Alves; Borges, Luana Ferreira; Martins, Paulo Chaves de Rezende; Neves, Rodolfo Rabelo; Siqueira, João Paulo de Almeida; Oliveira, Gabriel Yves da Silva; Anhaia, Cintia Adriana Azevedo de Liz
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This study aims to compare methods for the determination of concrete properties by means of the stress diagrams present in the Brazilian standard ABNT NBR 6118: 2014. The area under the stress diagram, the internal reactions, ...

    • COMPARISON OF ACTUAL GROUND SETTLEMENTS IN TUNNELLING EXCAVATION TO MODEL PREDICTIONS 

      Autor: Saplachidi , Alexandra; Vougioukas , Emmanouil
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      It has been discovered that the underground structures are vulnerable to seismic phenomena mainly due to permanent ground deformations caused by earthquakes rather than the dynamic seismic movement itself. Several models ...

    • COMPARISON OF AXIAL FAN ROTOR EXPERIMENTAL DATA WITH CFD SIMULATION 

      Autor: Prachař , Aleš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      Data obtained from an experimental simulation on a new test rig for axial fans are compared to a CFD simulation. The Edge solver is used and the development needed for the simulation (boundary conditions, free stream ...

    • Comparison of behaviour of burnt beams models with effective and actual residual cross-sections in three point bending test 

      Autor: Keřková Kucíková, Lucie; Šejnoha, Michal; Janda, Tomáš; Padevět, Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      Glued laminated timber beams exposed to fire of a variable duration were tested in three point bending. Three types of model geometries taking into account the effect of burning were created. Each model was examined for ...

    • COMPARISON OF CLASSICAL AND INTERACTIVE MULTI-ROBOT EXPLORATION STRATEGIES IN POPULATED ENVIRONMENTS 

      Autor: Kalde , Nassim; Simonin , Olivier; Charpillet , François
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Multi-robot exploration consists in coordinating robots for mapping an unknown environment. It raises several issues concerning task allocation, robot control, path planning and communication. We study exploration in ...

    • COMPARISON OF COOLING SCHEMES FOR HIGH HEAT FLUX COMPONENTS COOLING IN FUSION REACTORS 

      Autor: Domalapally , Phani Kumar; Entler , Slavomir
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Some components of the fusion reactor receives high heat fluxes either during the startup and shutdown or during the operation of the machine. This paper analyzes different ways of enhancing heat transfer using helium and ...

    • COMPARISON OF DRYING SHRINKAGE AND DRYING CREEP KINETICS IN CONCRETE 

      Autor: Dohnalová, Lenka; Havlásek, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The aim of this paper is to show and compare the time evolution of drying shrinkage and drying creep in concrete from three different perspectives. The first one analyzes the basic equations defined in the most common ...

    • COMPARISON OF ENERGY FLOW STREAM AND ISENTROPIC METHOD FOR STEAM TURBINE ENERGY ANALYSIS 

      Autor: Blažević , Sebastijan; Mrzljak , Vedran; Anđelić , Nikola; Car , Zlatan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      In this paper, a comparison of two different methods for a steam turbine energy analysis is presented. A high-pressure steam turbine from a supercritical thermal power plant (HPT) was analysed at three different turbine ...

    • COMPARISON OF EXPLORATION STRATEGIES FOR MULTI-ROBOT SEARCH 

      Autor: Kulich , Miroslav; Juchelka , Tomáš; Přeučil , Libor
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Searching for a stationary object in an unknown environment can be formulated as an iterative procedure consisting of map updating, selection of a next goal and navigation to this goal. It finishes when the object of ...

    • COMPARISON OF FAILURE CRITERIA FOR WOOD IN TENSILE-SHEAR STRESS STATE 

      Autor: Šmídová, Eliška; Kabele, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      An orthotropic failure criterion enhancing the Lourenco's criterion by a shear strength multiplier and a maximum shear strength upper bound has been recently proposed and validated for timber under tensile and shear loading ...

    • Comparison of FETI-based domain decomposition methods for topology optimization problems 

      Autor: Medřický, Tomáš; Doškář, Martin; Pultarová, Ivana; Zeman, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      We critically assess the performance of several variants of dual and dual-primal domain decomposition strategies in problems with fixed subdomain partitioning and high heterogeneity in stiffness coefficients typically ...

    • COMPARISON OF LANGUAGE SUBSET AND LANGUAGE EXTENSION BY SAFE RELATED INFORMATION APPROACH TO SAFE SYSTEM DEVELOPMENT 

      Autor: Brandejský, Tomáš; Fábera, Vít
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Presented contribution is dedicated to discussion of two different approaches into increase of programming language safety. They are language subset and extension of original safety mechanisms. As examples we used MISRA ...

    • COMPARISON OF MATHEMATICAL MODELS FOR HEAT EXCHANGERS OF UNCONVENTIONAL CHP UNITS 

      Autor: Durcansky , Peter
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      An unconventional CHP unit with a hot air engine is designed as the primary energy source with fuel in the form of biomass. The heat source is a furnace designed for combustion of biomass, whether in the form of wood logs ...

    • COMPARISON OF METHODS USED FOR SEISMIC ANALYSIS OF STRUCTURES 

      Autor: Čada, Petr; Máca, Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      This paper investigates effects of the seismic load to a structure. The article describes main methods of the definition and practical application of the seismic load based on the Standard Eurocode 8. There was made a ...

    • COMPARISON OF Mo COATING DEPOSITED BY TWAS AND APS SinplexPro THERMAL SPRAY TECHNIQUES 

      Autor: Houdková, Šárka; Antoš, Jakub; Šulcová, Petra; Lencová, Kateřina; Hajšman, Jan; Burdová, Karolína; Duliškovic, Josef
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      The wear resistant Mo coatings were deposited using SmartArc Electric Arc Wire Spray System and advanced SinplexPro high throughput atmospheric plasma spray gun. The coatings were analyzed in terms of microstructure, ...

    • COMPARISON OF OPTICAL METHODS FOR CHARACTERIZATION OF GLASS MOSAIC WEATHERING 

      Autor: Kocour, Vladimir; Petranova, Veronika; Valach, Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      The work presented in this paper is a part of research project supported by Ministry of Culture and devoted to conservation of precious mosaic of "Last Judgement" on St. Vitus Cathedral in Prague. The aim of the project ...

    • COMPARISON OF PARAMETERS OF SURFACE INTEGRITY OF MACHINED DUPLEX AND AUSTENITE STAINLESS STEELS IN RELATION TO TOOL GEOMETRY 

      Autor: Čapek, Jiří; Pitrmuc, Zdeněk; Kolařík, Kamil; Beránek, Libor; Ganev, Nikolaj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The goal of this contribution was to describe parameters of surface integrity of two machined materials; austenite and duplex stainless steel. Residual stresses and presence of straininduced martensite were studied as a ...