Prohlížení Acta Polytechnica dle názvu
Zobrazují se záznamy 755-774 z 880
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Teaching Management at Technical Universities Business Reality in the Academic Environment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Students of technical universities often do not understand why their studies should include learning management skills (in addition to the study of economics). However, not only the experience of graduates but also the ... -
TEARING MODES GROWTH RATE AMPLIFICATION DUE TO FINITE CURRENT RELAXATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)In this work, we explore the influence of perturbative wavelengths, shorter than those usually considered, on the growth rate γ of the tearing modes. Thus, we adopt an extended form of Ohm’s law, which includes a finite ... -
TECHNICAL AND ECONOMIC OPTIMIZATION OF COGENERATION TECHNOLOGY USING COMBUSTION AND GASIFICATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)This paper presents the technical and economic optimization of new microcogeneration technology with biomass combustion or biomass gasification used for cogeneration of electrical energy and heat for a 200 kW unit. During ... -
TECHNOLOGY OF PRODUCING REINFORCED CONCRETE COLUMNS OF CIRCULAR CROSS-SECTIONAL AND INVESTIGATION OF THEIR STRAIN-STRESS STATE AT TRANSVERSE-LONGITUDINAL BENDING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The paper presents a method of producing Circular Cross-Section Columns (CCSC), which can provide sufficiently precise dimensions, with longitudinal reinforcement securely fixed in special plugs. An investigation procedure ... -
TESTING OF GLUED JOINTS ON PLASTIC PARTS MANUFACTURED USING FFF TECHNOLOGY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)The article focuses on the testing of glued joints of plastic parts manufactured by 3D rapid prototyping, using the Fused Filament Fabrication technology. The first part of the article describes the suitability of using a ... -
TESTING THE ACCURACY OF MEASURED VALUES IN CONTINUOUS LONG-TERM GEODETIC MONITORING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)widespread used method. In this paper, an analysis of the accuracy and its changes over time of the measured values in continuous geodetic monitoring is presented. For the analysis, a set of data measured in the period of ... -
TESTING THE SUITABILITY OF THE EXTRUDED POLYSTYRENE (STYRODUR) APPLICATION IN THE TRACK SUBSTRUCTURE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)Extruded polystyrene (XPS) and its excellent thermal insulation properties have been known for over 60 years. Due to its thermal, mechanical, but also deformation properties, XPS has a universal application, not only in ... -
TESTS ON 10.9 BOLTS UNDER COMBINED TENSION AND SHEAR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Prior investigations of the load-bearing capacity of bolts during fire have shown differing behaviour between bolts that have been loaded by shear or by tensile loads. A combination of the two loads has not yet been examined ... -
TeV GAMMA RAYS: OBSERVATIONS VERSUS EXPECTATIONS & THEORY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The scope of this paper is to discuss two important questions relevant for TeV γ-ray astronomy; the pursuit to reveal the origin of cosmic rays in our galaxy, and the opacity of the universe in γ-rays. The origin of cosmic ... -
THE 2H(α, γ)6LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The 2H(α, γ)6Li reaction is the leading process for the production of 6Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, ... -
THE AHARONOV-BOHM HAMILTONIAN WITH TWO VORTICES REVISITED
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)We consider an invariant quantum Hamiltonian H = −ΔLB + V in the L2 space based on a Riemannian manifold ˜M with a discrete symmetry group Γ. To any unitary representation Λ of Γ one can relate another operator on M = ˜M ... -
THE ANALYSIS OF IMAGES IN N-POINT GRAVITATIONAL LENS BY METHODS OF ALGEBRAIC GEOMETRY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)This paper is devoted to the study of images in N-point gravitational lenses by methods of algebraic geometry. In the beginning, we carefully define images in algebraic terms. Based on the definition, we show that in this ... -
THE ASTRO-H MISSION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)A review of the Astro-H mission is presented here on behalf of the Astro-H collaboration. The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space ... -
The Asymptotic Properties of Turbulent Solutions to the Navier-Stokes Equations
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)In this paper we study the large time behavior of solutions to the Navier-Stokes equations. We present a brief survey of results concerning energy decay, and discuss a related phenomenon of the large time energy concentration ... -
THE AUGER ENGINEERING RADIO ARRAY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations. Its unique site, embedded into the ... -
THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The coating on the 22MnB5 steel is intended to protect it against oxidation during the forming process. This steel is hot-pressed. A preheating before the pressing and subsequent hardening in the tool affects the properties ... -
THE CHARACTERIZATION OF ANODIC OXIDE LAYERS ON SELECTED BIO-COMPATIBLE TITANIUM ALLOYS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Oxide layers on titanium alloy surfaces have an influence on bio-compatibility and corrosion resistance. In order to improve them, properties of oxide layers are examined. The oxide layer can be prepared by different methods ... -
The classification of eye diseases from fundus images based on CNN and pretrained models
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Visual impairment affects more than a billion people worldwide due to insufficient care or inadequate vision screening. Computer-aided diagnosis using deep neural networks is a promising approach, it can analyse and process ... -
THE CONDENSATION OF WATER VAPOUR IN A MIXTURE CONTAINING A HIGH CONCENTRATION OF NON-CONDENSABLE GAS IN A VERTICAL TUBE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)This paper deals with the condensation of water vapour possessing a content of noncondensable gas in vertical tubes. The condensation of pure steam on a vertical surface is introduced by the Nusselt condensation model. ... -
The Construction of the Fast Resistive Bolometer for a SXR Measurement on the GIT-12 Facility
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)A lot of kinds of instruments are used for the SXR measurement at pulsed power facilities, but most of them are difficult to calibrate absolutely. For the determination of the energy of SXR radiated by the discharge on ...