ČVUT - elektronické publikace: Poslední příspěvky
Zobrazují se záznamy 21-40 z 1904
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Influence of carbonation on torrent air permeability of concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Air permeability testing is increasingly being used to measure the impermeability of concrete and to estimate the durability of reinforced concrete structures using this property. This paper presents the results of a ... -
Possibilities of complex numerical modelling at the Czech Geotechnical Society workplace
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)In the paper, there are examples of complex geotechnical problems in both 2D and 3D that are modelled using PLAXIS software on the specialist workstation provided by the Czech Geotechnical Society to their members. -
Evaluation of deformation and strength parameters of organic soils for the design of geotechnical structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The evaluation of deformation and strength parameters of Holocene organic soils obtained from DMT dilatometer tests based on empirical relationships and ANN Artificial Neural Networks is presented. The evaluation of undrained ... -
Geophysics for underground engineering
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The growth of underground engineering brought a need for the use of geophysical methods for research of underground constructions rather different in approach compared to that of civil engineering. These changes relate to ... -
Integrated cyclic timetable on the railways in the Karlovy Vary region
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The concept of public transport with periodic timetables has been slowly spreading in the Czech Republic for many years. Together with the announcement of tenders for the operation of compulsory transport according to the ... -
Earth structures – a summary of the last 50 years
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper discusses changes and developments in the field of Earth Structures that have been presented and discussed over the last fifty years at the annual national conferences on Foundation Engineering held (with foreign ... -
Directing classical geotechnical engineering to future challenges
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Geotechnical engineers have traditionally been focused on soil mechanics, rock mechanics and engineering geology. Thus it has been sufficient to master these topics to be recognized as a key participant in building and ... -
Assessment of structures repeatedly exposed to thermal loading and extinguishing water: a case study of a firefighting training facility
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)When designing a new structure or assessing an existing one, the risk of fire and its effect on the structure must be considered. Structures are usually assessed for fire resistance at the design stage – i.e. before the ... -
Semi-analytical approach-based studies of the squeeze film lubrication between rough porous annular discs: Rabinowitsch fluid model
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)In recent years, there has been much interest in the effects of porosity and surface roughness (SR) or geometric irregularities between two moving plates under hydrodynamic lubrication. Porous bearings are used extensively ... -
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 ... -
Long-term experience of the thermo-active ground source system at the metro station Taborstrasse in Vienna
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Four of the stations newly opened during the underground extension of the U2 line in Vienna in 2008 have been covering a large part of their heating and cooling needs for now almost one and a half decades by using geothermal ... -
Monitoring the internal structure behaviour of alkali-activated slag paste: effect of the curing mode
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper deals with the monitoring of the internal structure behaviour of an alkaliactivated slag (AAS) paste. The slag was activated with a 4M solution of sodium hydroxide. The behaviour of the internal structure of the ... -
Prediction of temperature field distribution in a gas turbine using a higher order neural network
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper presents the prediction of temperature field distribution in a single annular section using an artificial neural network (ANN). This temperature distribution is non-uniform on the outer tube due to continuous ... -
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 ... -
Experimental investigation of flow characteristics and performance parameters of a podded aft engine air intake
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This experimental study investigates the flow characteristics and performance parameters of a podded intake in aft-engine configuration at the aerodynamic interface plane (AIP), which is a typical configuration of a generic ... -
Enhancement of power transfer capacity of transmission network using multilevel multifunction inverter
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This article presents a multilevel multifunction inverter (MLMFI) with a novel controller for the grid-connection of a solar array. The aim of this work is to improve the technology of the power transfer capacity of existing ... -
Quality improvement by application of a revised standard – feasibility studies on 2500 soundings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)CPT is a geotechnical investigation method that, depending on the geology, has been proved to be an essential tool to establish the Geotechnical Design Model. However, doubt has been raised about the quality of the data. ... -
Providing stability to a highway cut in a landslide area with the use of diaphragm wall panels
(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
(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
(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 ...