Prohlížení Acta Polytechnica dle názvu
Zobrazují se záznamy 739-758 z 880
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STUDY OF L–H TRANSITION AND PEDESTAL WIDTH BASED ON TWO-FIELD BIFURCATION AND FIXED POINT CONCEPTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The L–H transition in magnetic confinement plasmas is investigated on the basis of concepts of two-field bifurcation and fixed-point stability. A set of heat and particle transport equations with both neoclassical and ... -
STUDY OF SAMPLES STRENGTH OF MATERIAL FORMED BY THE PROCESSES OF COMPACTION EXTRUSION AND TUMBLING GRANULATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)In a period of industrial expansion, protection of the environment is often neglected during the mass manufacture of products. One of the problems of our society that is necessary to face at present is the provision, ... -
Study of Silicon Photomultipliers for the GRIPS Calorimeter Module
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)GRIPS is a proposed gamma-ray (200 keV to 80 MeV) astronomy mission, which incorporates a pair-creation and Compton scattering telescope, along with X-ray and infrared telescopes. It will carry out a sensitive all-sky ... -
Study of surface roughness with MHD and couple stress fluid on porous curved annular plates
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The purpose of this article is to examine the effect of surface roughness on porous curved annular plates lubricated with couple stress fluid in the presence of magnetic field. The MHD-Stochastic Reynolds equation is derived ... -
STUDY OF SYNTHETIC DYE REMOVAL USING FENTON/TiO2, FENTON/UV, AND FENTON/TiO2/UV METHODS AND THE APPLICATION TO JUMPUTAN FABRIC WASTEWATER
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)Synthetic dyes were commonly used in textile industries such as Jumputan fabric industries in South Sumatera. Most of these industries were categorized as a home industry without a wastewater treatment plant, so the ... -
STUDY OF THE TIME DEPENDENCE OF RADIOACTIVITY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The activity of a 137Cs source was measured using a germanium detector installed deep underground in the Gran Sasso Laboratory. In total about 5100 energy spectra, one hour measuring time each, were collected and used to ... -
STUDY ON MCNP6 MODEL IN THE CALCULATION OF KINETIC PARAMETERS FOR PEBBLE BED REACTOR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)When conducting a nuclear reactor transient analysis, the most important parameter, called the kinetic parameter, is required. The calculation of kinetic parameters can be conducted using several methods. The deterministic ... -
Subjective approach to optimal cross-sectional design of biodegradable magnesium alloy stent undergoing heterogeneous corrosion
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)Existing biodegradable Magnesium Alloy Stents (MAS) have several drawbacks, such as high restenosis, hasty degradation, and bulky cross-section, that limit their widespread application in a current clinical practice. To ... -
SUITABLE PRODUCTION TOOLS SELECTION WITH THE USE OF EVOLUTIONARY ALGORITHMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)This paper deals with the use of a production equipment simulation in the design of production systems, more specifically the welding equipment in the automotive industry. Based on the simulation results, a matrix, which ... -
SUPERNOVA 1987A: CELEBRATING A SILVER JUBILEE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The story of the SN 1987A explosion is briefly reviewed. Although this supernova was somewhat peculiar, the study of SN 1987A has clarified quite a number of important aspects of the nature and the properties of supernovae, ... -
SURFACE CONSOLIDATION OF WALL PAINTINGS USING LIME NANO-SUSPENSIONS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Within the field of the conservation of historical and cultural monuments, lime nanosuspensions are still a relatively new and unexplored material. This study examines their effect on the consolidation of architectural ... -
SURVEY OF SELECTED PROCEDURES FOR THE INDIRECT DETERMINATION OF THE GROUP REFRACTIVE INDEX OF AIR
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)The main aim of the research was to evaluate numeric procedures of the indirect determination of the group refractive index of air and to choose the suitable ones for requirements of ordinary and high accuracy distance ... -
Swanson Hamiltonian revisited through the complex scaling method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In this work, we study the non-hermitian PT-symmetry Swanson Hamiltonian in the framework of the Complex Scaling Method. We show that by applying this method we can work with eigenfunctions that are square-integrable both ... -
Synthesis of Mechanisms by Methods of Nonlinear Dynamics
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper deals with a new method for parametric kinematic synthesis of mechanisms. The traditional synthesis procedure based on collocation, correction and optimization suffers from the local minima of objective functions, ... -
SYSTEM FOR MEASURING KINEMATICS OF VESTIBULAR SYSTEM MOVEMENTS IN NEUROLOGICAL PRACTICE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The article deals with the design of a system for studying kinematics of movement of the vestibular system. Up to now there has not existed a system which would enable to measure the kinematic quantities of movement of the ... -
Systems of Electronic Overcurrent Protection in Pulse Power Generator Operating on Plasma Load
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Schematic peculiarities of pulsed power source and modulator-shaper for working on high instability plasma load are discussed. In its construction should be provided for several levels of overcurrent protection. First of ... -
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 ...