Prohlížení Acta Polytechnica CTU Proceedings. 2023 ( vol. 40-45) dle názvu
Zobrazují se záznamy 1-20 z 85
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AI-assisted study of auxetic structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)In this study, the viability of using machine learning models to predict stress-strain curves of auxetic structures based on geometry-describing parameters is explored. Given the computational cost and time associated with ... -
An exploratory gallery for Luka tunnel on the D3 motorway
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The Luka tunnel is designed for the 0302 Jílové – Hostěradice section of the D3 motorway. This has a length of 1843m and will consist of two tunnel tubes of T 9.5/100 category. It is proposed that a 1354m long exploratory ... -
Analysis of objective eye tracking data used for vehicle assessment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper describes the application of eye tracking technology in the automotive industry in the context of vehicle assessment in customer clinics. The paper presents the mentioned technology, the applied experimental ... -
Analysis of peel and shear strains in cracked lap shear specimens subjected to fatigue loading using digital image correlation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Adhesive bonding presents many advantages, such as efficient manufacturing and improved structural performance [1]. However, in structures subjected to fatigue, cracks might initiate and propagate in joints, leading to ... -
Analysis of tunnel excavation based on linear DFN-FEM modelling
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Simulations of tunnel excavations have to take into account the natural occurrence of joints and faults in the surrounding rock mass, which dominantly control its mechanical response. In this paper, we present work in ... -
Application of cold atmospheric plasma for mold inactivation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Mold growth in indoor interiors is an increasing problem that has adverse effects on both occupants and building materials. The aim of this study was to present the new environmentally friendly method (cold atmospheric ... -
Application of ontology/conceptual modelling in the context of risk identification at level crossings
(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 ... -
Artificial intelligence in operational applications of railway infrastructure manager
(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 ... -
Asynchronous time integration while achieving zero interface energy
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This contribution deals with an asynchronous direct time integration of the finite-element model. The proposed method is applied to the phenomenon of wave propagation through an elastic linear continuum. The numerical model ... -
Bacterially induced calcite formation at the surface of recycled concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The construction industry is one of the main sources of greenhouse gas emissions, and portland cement production is responsible for approximately 8 % of anthropogenic CO2 emissions. Microbially induced calcium precipitation ... -
Bar-supported and unsupported dental implants: a QCT-FEA study in human maxilla
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Two variants of implant-supported overdentures (IODs) were investigated by quantitative computed tomography-assisted finite element method (QCT-FEA) on a patient-specific CTreconstructed model of human maxilla. The analyzed ... -
Benchmark VERCORS 2022: blind prediction of time-dependent behavior of concrete containment building with low and high-fidelity models
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The VERCORS program aims to acquire an extensive experimental dataset collected to provide a solid basis for numerical modeling of concrete containment buildings (CCBs). In order to cover the entire life-span of a real ... -
Benefits of remote control on the railway lines
(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 ... -
Collapse potential and ultrasonic pulse velocity of loess soils after treatment with expanded perlite and metakaolin
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Collapsible soils, including loess, can support heavy loads at their natural humidity but then collapse rapidly and lose a substantial volume when the humidity increases. Soil collapse potential at different immersion ... -
Comparison of behaviour of burnt beams models with effective and actual residual cross-sections in three point bending test
(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 ... -
Computed tomography system with strict real-time synchronization for in-situ 3D analysis of periodically vibrating objects
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)In the contribution, we present a laboratory system capable of X-ray computed tomography (XCT) scanning of an periodically moving or oscillating object. The system is an in-house developed XCT setup with electromagnetic ... -
Considerations on an embedded pile’s effective length in an analytical calculation according to the commentary on the STN 73 1002 standard
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The analytical model for calculating the bearing capacity of a pile, presented in the commentary to STN 73 1002 – Pile Foundations, gives a recommendation to reduce the pile’s length in the calculation of the shaft resistance. ... -
Cooperation of active steering control of wheelsets with subsystems of an autonomous urban rail vehicle
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The paper presents the motivations for the application of actively controlled elements in the running gear of a rail vehicle and the challenges that need to be addressed before deploying vehicles with actively controlled ... -
Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)One of the ways to use the treated gypsum waste is in gypsum mixtures for the production of gypsum blocks. Gypsum blocks can be used in standard interior as well as exterior applications and are made of gypsum, water, PP ... -
Design of a network of cycling routes in the Kutná Hora district
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Cycling is a dynamically expanding transport mode of today. At the same time, cycling is an alternative to individual car transport as well as to public transport. The basis of a good cycling infrastructure is a comprehensive ...