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  • Subjective approach to optimal cross-sectional design of biodegradable magnesium alloy stent undergoing heterogeneous corrosion 

    Author: Zarei, Najmeh; Anvar, Seyed Ahmad; Goenezen, Sevan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    Existing biodegradable Magnesium Alloy Stents (MAS) have several drawbacks, such as high restenosis, hasty degradation, and bulky cross-section, that limit their widespread application in a current clinical practice. To ...
  • Preliminary prospects of a Carnot-battery based on a supercritical CO2 Brayton cycle 

    Author: Rindt, Karin; Hrdlička, František; Novotný, Václav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    As a part of the change towards a higher usage of renewable energy sources, which naturally deliver the energy intermittently, the need for energy storage systems is increasing. For the compensation of the disturbance in ...
  • Process optimization and performance evaluation of a downdraft gasifier for energy generation from wood biomass 

    Author: Daniyan, Ilesanmi; Ale, Felix; Uchegbu, Ikenna Damian; Bello, Kazeem; Osazele, Momoh
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    In recent time, due to the increasing demand for energy and the need to address environment-related issues, a great deal of focus has been given to alternative sources of energy, which are green, sustainable and safe. This ...
  • Assessment of external interface of autonomous vehicles 

    Author: Orlický, Adam; Mashko, Alina; Mík, Josef
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The paper deals with the problem of a communication interface between autonomous vehicles (AV) and pedestrians. The introduced methodology for assessing new and existing e-HMI (external HMI) contributes to traffic safety ...
  • On reducing CO2 concentration in buildings by using plants 

    Author: Franek, Ondřej; Jarský, Čeněk
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The article deals with the implementation of plants in the indoor environment of buildings to reduce the concentration of CO2. Based on a specified model representing the internal environment of an office space, it was ...
  • STUDY ON MCNP6 MODEL IN THE CALCULATION OF KINETIC PARAMETERS FOR PEBBLE BED REACTOR 

    Author: Zuhair,; Suwoto,; Setiadipura, Topan; Su'ud, Zaki
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
    When conducting a nuclear reactor transient analysis, the most important parameter, called the kinetic parameter, is required. The calculation of kinetic parameters can be conducted using several methods. The deterministic ...
  • Water-air ejector with conical-cylindrical mixing chamber 

    Author: Sliusenko, Andrii; Ponomarenko, Vitalii; Forostiuk, Inna
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    In the paper, the hydrodynamics of the liquid-gas mixture in the mixing chamber of the ejectors at different spatial positions was analyzed and the comparative study of such ejectors was carried out. It was found that a ...
  • Determination of bond model for 7-wire strands in pretensioned concrete beam 

    Author: Parkhats, Vadzim; Krzywoń, Rafał; Hulimka, Jacek; Kubica, Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    A correct choice of a bond model for prestressing tendons is crucial for the right modelling of a structural behaviour of a pretensioned concrete structure. The aim of this paper is the determination of an optimal bond ...
  • Application of additional insulation to ETICS on surfaces with biocorrosion 

    Author: Antošová, Naďa; Šťastný, Patrik; Petro, Marek; Krištofič, Štefan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The paper presents partial outputs from an experiment that demonstrated the impact of applying an additional insulation on an existing contact insulation system with a green-algae surface. The aim was mainly to detect the ...
  • Comparision of the walk techniques for fitness state space analysis in vehicle routing problem 

    Author: 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 ...
  • Design development and study of an elastic sectional screw operating tool 

    Author: Hevko, Roman; Zalutskyi, Sergii; Tkachenko, Ihor; Lyashuk, Oleg; Trokhaniak, Oleksandra
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The results of an elastic sectional screw operating tool development and its production technique are presented in the article under consideration. The operating tool has been made to fix the elastic sections, providing ...
  • Cavitation wear of Eurofer 97, Cr18Ni10Ti and 42HNM alloys 

    Author: Rostova, Hanna; Voyevodin, Victor; Vasilenko, Ruslan; Kolodiy, Igor; Kovalenko, Vladimir; Marinin, Vladimir; Zuyok, Valeriy; Kuprin, Alexander
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The microstructure, hardness and cavitation wear of Eurofer 97, Cr18Ni10Ti and 42HNM have been investigated. It was revealed that the cavitation resistance of the 42HNM alloy is by an order of magnitude higher than that ...
  • Delamination of polyimide in hydrofluoric acid 

    Author: Al-mashaal, Asaad K. Edaan; Cheung, Rebecca
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    Wet etching is a critical fabrication step for the mass production of micro and nanoelectronic devices. However, when an extremely corrosive acid such as hydrofluoric (HF) acid are used during etching, an undesirable damage ...
  • Performance characteristics of low carbon waste material to stabilise soil with extremely high plasticity 

    Author: Al-Baidhani, Ali; Al-Taie, Abbas Jawad
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
    The application of low-carbon and natural materials to mitigate the undesired properties of difficult soils is considered as a sustainable solution to the issues regarding these soils. Selecting some natural materials, of ...
  • Orthonormal polynomial projection quantization: an algebraic eigenenergy bounding method 

    Author: Handy, Carlos R.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    The ability to generate tight eigenenergy bounds for low dimension bosonic or ferminonic, hermitian or non-hermitian, Schrödinger operator problems is an important objective in the computation of quantum systems. Very few ...
  • Linearised coherent states for non-rational SUSY extensions of the harmonic oscillator 

    Author: Contreras-Astorga, Alonso; Fernández C., David J.; Muro-Cabral, César
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    In this work, we derive two equivalent non-rational extensions of the quantum harmonic oscillator using two different supersymmetric transformations. For these extensions, we built ladder operators as the product of the ...
  • Generalized three-body harmonic oscillator system: ground state 

    Author: Escobar-Ruiz, Adrian M.; Montoya, Fidel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    In this work we report on a 3-body system in a d−dimensional space ℝd with a quadratic harmonic potential in the relative distances rij = |ri −rj| between particles. Our study considers unequal masses, different spring ...
  • Time-dependent mass oscillators: constants of motion and semiclasical states 

    Author: Zelaya, Kevin
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    This work reports the construction of constants of motion for a family of time-dependent mass oscillators, achieved by implementing the formalism of form-preserving point transformations. The latter allows obtaining a ...
  • Photonic graphene under strain with position-dependent gain and loss 

    Author: Castillo-Celeita, Miguel; Contreras-Astorga, Alonso; Fernández C., David J.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    We work with photonic graphene lattices under strain with gain and loss, modeled by the Dirac equation with an imaginary mass term. To construct such Hamiltonians and their solutions, we use the free-particle Dirac equation ...
  • From quartic anharmonic oscillator to double well potential 

    Author: Turbiner, Alexander V.; del Valle, Juan Carlos
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
    Quantum quartic single-well anharmonic oscillator Vao(x) = x2 + g2x4 and double-well anharmonic oscillator Vdw(x) = x2(1−gx)2 are essentially one-parametric, they depend on a combination (g2ℏ). Hence, these problems are ...

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