Acta Polytechnica. 2024, vol. 64, no.2

 

Zobrazují se záznamy 1-7 z 7

    • An innovative iterative approach to solving Volterra integral equations of second kind 

      Autor: Hussein, Mohammed Abdulshareef; Jassim, Hassan Kamil; Jassim, Ali Kareem
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Many scientists have shown great interest in exploring the realm of second-kind integral equations, offering many techniques for solving them, including exact, approximate, and numerical methods. This paper introduces the ...

    • Numerical solution for stochastic Volterra-Fredholm integral equations with delay arguments 

      Autor: Yao, Kutorzi Edwin; Zhang, Yuxue; Shi, Yufeng
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      We present a method for computing the stochastic operational matrix of integration to advance the study of stochastic Volterra-Fredholm integral equations (SVFIEs) based on delay arguments. First, the method evaluates the ...

    • Precipitation of oxide dispersion strength steels after long-term annealing at temperature of 475 °C 

      Autor: Košovský, Dávid; Miglierini, Marcel; Kmječ, Tomáš; Dekan, Július; Bujdoš, Marek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Oxide dispersion strengthened steels are key alloys used in nuclear installations. Steels with chromium content of up to 10 wt % are suitable due to their advantageous properties and these alloys are used for the construction ...

    • P-LDPC coded image transmission with OFDM over underwater acoustic channel 

      Autor: Al-Kadhimi, Aymen M.; Abdelkareem, Ammar E.; Tsimenidis, Charalampos C.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Underwater environment is still an attractive area to explore and exploit by human beings. However, underwater characteristics limit communications due to harsh channel conditions, and efficient channel codes are essential ...

    • The importance of using active thermal protection following restoration work on old buildings 

      Autor: Šťastný, Patrik; Antošová, Naďa; Kalús, Daniel; Mučková, Veronika
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      The paper deals with the issue of humidity and the unhealthy environment of old buildings. Humidity is a very widespread problem not only in historical buildings, but also in newer buildings. This problem can be observed ...

    • Parametric optimisation of laser welding of stainless steel 316L 

      Autor: Butt, Adnan Qayyum; Tayyaba, Qanita; Raza, Muhammad Ali; Rehman, Abdul; Khan, Tayyab Ali; Shahzad, Muhmmad
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      This paper presents numerical and experimental studies focused on the optimisation of laser welding parameters for AISI 316L stainless steel. The focus of the numerical studies was to obtain the mathematical model with the ...

    • A practical way to apply a technique that accelerates time history analysis of structures under digitised excitations 

      Autor: Soroushian, Aram
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)
      Time history analysis using direct time integration is a versatile and widely accepted tool for analysing the dynamic behaviour of structures. In 2008, a technique was proposed to accelerate the time history analysis of ...