Prohlížení Acta Polytechnica CTU Proceedings. 2017 ( vol. 7-13) dle názvu
Zobrazují se záznamy 1-20 z 115
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1D HERMITE ELEMENTS FOR C1-CONTINUOUS SOLUTIONS IN SECOND GRADIENT ELASTICITY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)We present a modified strain gradient theory of elasticity for linear isotropic materials in order to account for the so-called size effect. Additional material length scale parameters are introduced and the problem of ... -
ADAPTIVE QUASICONTINUUM SIMULATION OF ELASTIC-BRITTLE DISORDERED LATTICES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The quasicontinuum (QC) method is a computational technique that can efficiently handle atomistic lattices by combining continuum and atomistic approaches. In this work, the QC method is combined with an adaptive algorithm, ... -
ADHESION OF BIOCOMPATIBLE TiNb COATING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Preparation of a coating with a high quality requires good adhesion of the film to the substrate. The paper deals with the adhesion of biocompatible TiNb coating with different base materials. Several materials such as ... -
AFFECTIVE COMPUTING AND AUGMENTED REALITY FOR CAR DRIVING SIMULATORS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Car simulators are essential for training and for analyzing the behavior, the responses and the performance of the driver. Augmented Reality (AR) is the technology that enables virtual images to be overlaid on views of the ... -
AN INTELLIGENT CO-DRIVER SURVEILLANCE SYSTEM
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)In recent years many car manufacturers developed digital co-drivers , which are able to monitor the driving behaviour of a car. Sensors in the car measure if a car passes speed limits, leaves its lane, or violates other ... -
AN ISSUE OF INTELLIGENT ROAD TRANSPORT IN KAZAKHSTAN
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The article reviewed the road transport sector of the Republic of Kazakhstan and found a significant role in ensuring road transport of freight and passengers. Shown needs to improve the work of transport-communication ... -
ANALYSIS OF COMPETITIVENESS OF RAILWAY PASSANGER TRANSPORT BETWEEN RAKOVNÍK AND PRAGUE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This paper deals with the issue of railway connection between Rakovník and Prague. Initially, there is made an analysis of the transport supply and analysis of modal split. Additionally, an operation concept is suggested ... -
ANALYSIS OF DYNAMIC EFFECTS ACTING ON RAILWAY CROSSINGS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The paper is focused on measurement and analysis of dynamic effects on railway turnouts. Two same-type turnouts with different fastening elasticity were chosen. Attention was focused mainly on the crossing part of the ... -
ANALYSIS OF STORED DATA HELP TO PROPOSE AND GENERATE NEW TRACKS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)During experiments on vehicle simulators a large amount of data is stored. On these data, it is possible to trace some similarities in the behavior of drivers in certain areas or when performing the same task. We can assume ... -
ARTIFICIAL NEURAL NETWORK FOR MODELS OF HUMAN OPERATOR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This paper presents a new approach to mental functions modeling with the use of artificial neural networks. The artificial neural networks seems to be a promising method for the modeling of a human operator because the ... -
ASSESSMENT OF 2D-DIC STOCHASTIC PATTERNS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Cost of experimental testing of materials and structures subjected to mechanical loading often constitutes a significant portion of a project budget. Therefore a collection of data in a maximum possible amount is desirable. ... -
AUTOMATIC GENERATION OF ROAD INFRASTRUCTURE IN 3D FOR VEHICLE SIMULATORS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)One of the modern methods of testing new systems and interfaces in vehicles is testing in a vehicle simulator. Providing quality models of virtual scenes is one of tasks for driver-car interaction interface simulation. ... -
BaTiO3 FILMS DEPOSITED ONTO TiNb AND Ti SUBSTRATES - AMOUNT AND STABILITY OF BARIUM
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)BaTiO3 films deposited onto TiNb and Ti substrates using hydrothermal synthesis method were studied in the presented work. These films are supposed to improve properties of bone implants due to their ferroelectric behaviour, ... -
CANT EXCESS AND CANT DEFICIENCY EVALUATION IN RELATION TO TRAIN SPEED
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The paper deals with the evaluation of measured speeds of the vehicles on the chosen sections of the railway network in the Czech Republic. In connection with the phased implementation of the AVV system (automatic train ... -
COMPARATIVE ANALYSIS OF BEARING CAPACITY OF REINFORCED AND NON-REINFORCED RAILWAY EMBANKMENT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)A comparative analysis using the programme ANSYS (FEM) deals with the generation of the computation model and with the assessment of the influence of the geogrids and the vertical lime-cement columns on the bearing capacity ... -
COMPARISON OF FAILURE CRITERIA FOR WOOD IN TENSILE-SHEAR STRESS STATE
(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 LANGUAGE SUBSET AND LANGUAGE EXTENSION BY SAFE RELATED INFORMATION APPROACH TO SAFE SYSTEM DEVELOPMENT
(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 METHODS USED FOR SEISMIC ANALYSIS OF STRUCTURES
(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 PARAMETERS OF SURFACE INTEGRITY OF MACHINED DUPLEX AND AUSTENITE STAINLESS STEELS IN RELATION TO TOOL GEOMETRY
(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 ... -
COMPARISON OF VIRTUAL FIELDS METHOD, PARALLEL NETWORK MATERIAL MODEL AND FINITE ELEMENT UPDATING FOR MATERIAL PARAMETER DETERMINATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Extracting material parameters from test specimens is very intensive in terms of cost and time, especially for viscoelastic material models, where the parameters are dependent of time (frequency), temperature and environmental ...