Prohlížení Acta Polytechnica dle názvu
Zobrazují se záznamy 111-130 z 880
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Application of the Source-Jerk method using a neutron generator in a subcritical reactor
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)This paper describes the application of the Source-Jerk method using a neutron generator in the VR-1 reactor. The experiments were carried out on a shutdown reactor with subcriticality greater than -10 βeff. A D-D neutron ... -
APPLICATION OF THE TEMPERATURE OSCILLATION METHOD IN HEAT TRANSFER MEASUREMENTS AT THE WALL OF AN AGITATED VESSEL
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The Temperature Oscillation Infra-Red Thermography (TOIRT) was used to measure convective heat transfer coefficients at the inner vertical wall of an agitated and baffled vessel. Two impellers were used: an axial six-blade ... -
APPROACHES TO THE GAS CONTROL IN UCG
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Underground Coal Gasification represents an alternative for conventional coal mining. This technology is also less expensive than traditional mining. It is expected that coal will be an important energy source in the coming ... -
ARGO-YBJ: STATUS AND HIGHLIGHTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The ARGO-YBJ experiment has been gathering data steadily since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300m a.s.l., 606 g/cm2). ARGO-YBJ is confronting various open problems in Cosmic Ray ... -
ARTIFICIAL NEURAL NETWORK APPROACH FOR THE IDENTIFICATION OF CLOVE BUDS ORIGIN BASED ON METABOLITES COMPOSITION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)This paper examines the use of an artificial neural network approach in identifying the origin of clove buds based on metabolites composition. Generally, large data sets are critical for an accurate identification. Machine ... -
Assessing the efficacy of flat-plate solar collectors using nanofluids in the climatic context of Kirkuk city, Iraq
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Solar energy is a key renewable energy source. Research and development have focused on enhancing the heat transfer coefficient, heat gain, and practical efficiency of solar systems. The aim of this study is to evaluate ... -
Assessment of external interface of autonomous vehicles
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)The paper deals with the problem of a communication interface between autonomous vehicles (AV) and pedestrians. The introduced methodology for assessing new and existing e-HMI (external HMI) contributes to traffic safety ... -
ASSESSMENT OF POSTURAL INSTABILITY IN PATIENTS WITH A NEUROLOGICAL DISORDER USING A TRI-AXIAL ACCELEROMETER
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Current techniques for quantifying human postural stability during quiet standing have several limitations. The main problem is that only two movement variables are evaluated, though a better description of complex ... -
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 ... -
Assessment of the effectiveness of lubrication of Ti-6Al-4V titanium alloy sheets using radial basis function neural networks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)The aim of the research presented in this article was to determine the value of the friction coefficient using a simple tribological test and to build an empirical model of friction with the use of radial basis function ... -
ASTRONOMICAL GLASS PLATE NEGATIVES: MONITORING OF EMULSION LAYER DETERIORATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)One of the techniques for making photographic negatives most used in the history of photography were gelatin glass plates. This technique was used not only in the artistic field but also and mainly in the scientific field. ... -
ASTRONOMICAL PLATE ARCHIVES AND SUPERMASSIVE BLACK HOLE BINARIES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The recent extensive digitisation of astronomical photographic plate archives, the development of new dedicated software and the use of powerful computers have for the first time enabled effective data mining in extensive ... -
Astroparticle Physics Today
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)In this short review paper I will draw attention to the most important steps made in the past decade toward a better understanding of the physics governing our Universe. The results that I will discuss are drawn from the ... -
Atmospheric Argon Free burning Arcs with a Simplified Unified Model Using CFD-Arc Modeling
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Free burning arcs, where the work piece acts as an anode, are frequently used for a number of applications. Our investigation is exclusively concerned with a simplified unified model of arcs and their electrodes under ... -
AUTOMATIC BIOMASS BOILER WITH AN EXTERNAL THERMOELECTRIC GENERATOR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)This paper presents the design and test results of an external thermoelectric generator that utilizes the waste heat from a small-scale domestic biomass boiler with nominal rated heat output of 25 kW. The low-temperature ... -
AUTOMATIC CLASSIFICATION OF POINT CLOUDS FOR HIGHWAY DOCUMENTATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)Mobile laser scanning systems confirmed the capability for detailed roadway documentation. Hand in hand with enormous datasets acquired by these systems is the increase in the demands on the fast and effective processing ... -
AUTOMATIC EEG CLASSIFICATION USING DENSITY BASED ALGORITHMS DBSCAN AND DENCLUE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)Electroencephalograph (EEG) is a commonly used method in neurological practice. Automatic classifiers (algorithms) highlight signal sections with interesting activity and assist an expert with record scoring. Algorithm ... -
AUTOMATIC RECONSTRUCTION OF ROOF MODELS FROM BUILDING OUTLINES AND AERIAL IMAGE DATA
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The knowledge of roof shapes is essential for the creation of 3D building models. Many experts and researchers use 3D building models for specialized tasks, such as creating noise maps, estimating the solar potential of ... -
AUTOMATIC WINDING GENERATION USING MATRIX REPRESENTATION - ANFRACTUS TOOL 1.0
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)This paper describes an original approach dealing with AC/DC winding design in electrical machines. A research software called “ANFRACTUS Tool 1.0”, allowing automatic generation of all windings in multi-phases electrical ... -
AUTOMORPHISMS OF ALGEBRAS AND ORTHOGONAL POLYNOMIALS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)Suitable automorphisms together with complete classification of representations of some algebras can be used to generate some sets of orthogonal polynomials “at no cost”. This is also the case of nonstandard Klimyk-Gavrilik ...