Acta Polytechnica CTU Proceedings. 2016 ( vol. 3-6): Poslední příspěvky
Zobrazují se záznamy 21-40 z 60
-
DATABASE FINLIV – FOCUS ON STAIRCASE METHOD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This paper introduces FinLiv database focused on gathering, manipulating and providing experimental static and fatigue data. One of its new features is the ability to include also fatigue tests realized by the staircase method. -
SEMI-ACTIVE DAMPING PERFORMANCE OF IRON PARTICLE FILLED SILICONE RUBBER
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The aim of this work was to design, produce and evaluate a demonstrator to visualize the magneto-induced damping behaviour of materials. In contrast to standard materials, the damping coefficient of iron particle filled ... -
ANALYSIS OF WELDED POLYPROPYLENE STRUCTURES: COMBINATION OF EXPERIMENTS AND SIMULATIONS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The effect of joining by extrusion welding on the tensional stiffness and strength of a Polypropylene copolymer was analysed. Short-term and creep tests with laboratory specimens were conducted. Welded joint sub-components ... -
FLEXIBILITY TEST OF THE TOOLS OF ANGIOPLASTY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Coronary angioplasty is a procedure used to treat the narrowed coronary arteries. Physicians operate with many different tools during the intervention, the main devices are the following: guidewires, guiding catheters, ... -
PROTON RADIOGRAPHY WITH THE PIXEL DETECTOR TIMEPIX
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This article presents the processing of radiographic data acquired using the position-sensitive hybrid semiconductor pixel detector Timepix. Measurements were made on thin samples at the medical ion-synchrotron HIT [1] in ... -
POST CRITICAL HEAT TRANSFER AND FUEL CLADDING OXIDATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The knowledge of heat transfer coefficient in the post critical heat flux region in nuclear reactor safety is very important. Although the nuclear reactors normally operate at conditions where critical heat flux (CHF) is ... -
THERMAL-HYDRAULIC ANALYSIS OF IRT-4M IN REACTIVITY INSERTION ACCIDENT AT VR-1 REACTOR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The paper deals with thermal-hydraulic analysis during reactivity insertion accident, i.e. a step increase of nuclear system reactivity by 0.7 eff, at VR-1 Reactor. The reactor utilizes IRT-4M type of fuel assemblies, and ... -
STUDY OF IDENTIFICATION OF TWO-PHASE FLOW PARAMETERS BY PRESSURE FLUCTUATION ANALYSIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This paper deals with identification of parameters of simple pool boiling in a vertical rectangular channel by analysis of pressure fluctuation. In this work is introduced a small experimental facility about 9 kW power, ... -
ASSESSMENT OF BURNABLE ABSORBER FUEL DESIGN BY UWB1 DEPLETION CODE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)UWB1 depletion code is being developed as a fast computational tool for the study of burnable absorbers in University of West Bohemia in Pilsen, Czech Republic. Research of fuel depletion aims at development and introduction ... -
QUENCH FRONT PROPAGATION IN THE ANNULAR CHANNEL
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Understanding the quench front propagation during bottom core reflooding is crucial for the effective cooling during the LOCA accident. The results presented in this paper were obtained on an experimental loop with an ... -
VALIDATION OF CUTTING FORCE CHARACTERISTIC FOR COMPLEX TOOLPATH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)In the design phase of the milling process, there is a great need for the prediction of the cutting force, the required torque and power of the spindle. These informations could be used to optimize the tool path and improve ... -
THERMO-VISCOELASTIC CHARACTERIZATION OF POLYMER LAMINATE FILMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The investigated material - laminate is intended as a substrate for small electronic components, electrodes and printed circuits, which are processed onto the laminate prior to thermoforming. The placement of the electronic ... -
PARCS/TRACE COUPLING METHODOLOGY FOR ROD EJECTION ON VVER 1000 REACTOR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The rod ejection (RE) is a design basis accident in accordance with NUREG-0800 and usually studied using point kinetics. In this paper a methodology and a 3D kinetic model is prepared (PARCS), coupled with a thermal hydraulic ... -
MODERNIZATION OF RAILWAY STATIONS CESKA LIPA AND KARLOVY VARY WITH THE EXPECTED CO-FINANCING FROM EUROPEAN FUNDS FORM OPD2
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The article describes the planned modernization of railway stations in Ceská Lípa and Karlovy Vary, their scope and financing. The emphasis is laid on the expected co-financing of these projects from European structural ... -
ASSETS OF MODEL METRO STATION AND THEIR CRITICALITY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The paper deals with the identification of protected assets in the model metro station, which is a part of critical infrastructure in Praha; and with the identification of their criticality. A metro station is used by a ... -
CRITICALLITY OF TRANSPORTATION INFRASTRUCTURE IN THE CZECH REPUBLIC
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The paper deals with transportation infrastructure criticality because this quantity determines the State capability to overcome the critical conditions and to ensure the inhabitants survival. The criticality rates for ... -
CURRENT CHALLENGES FOR RESEARCH ACTIVITIES IN THE FIELD OF RAILWAY INFRASTRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The increasing importance of railway systems, arising from both national and European strategic documents, leads to increasing demands on its infrastructure. Transport development in the European territory is defined in ... -
DEPLOYMENT OF ERTMS IN CZECH REPUBLIC
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The article describes current situation and expected deployment of international standard for automatic rail vehicle protection in Czech Republic for period 2014 – 2020. Article introduces expected status in 2020 and ... -
MONITORING OF TRACK SECTIONS WITH LONG-PITCH CORRUGATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The focus of this paper lies on monitoring of the track sections with rail corrugations caused by wheel sliding. Short waves on the running surface of the rail head on low rail are typical for this defect. Long-pitch ... -
THE PRIORITY OF INTERNATIONAL FREIGHT EXPRESSES IN THE OVERLAPPING SECTION OF RFC 7 AND RFC 9 KOLÍN - CESKA TREBOVA
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This article deals with the railway traffic control and railway traffic equipment in terms of implementation of TSI. The main goal is to research the optimal priority of international freight expresses, especially in the ...