Prohlížení Acta Polytechnica dle názvu
Zobrazují se záznamy 51-70 z 880
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Accelerometer-assisted PPG Measurement During Physical Exercise Using the LAVIMO Sensor System
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)A method is presented for long-term monitoring of vital signs tested during physical exercise. The system is based on reflective photoplethysmography (PPG), whose main component is a micro-optoelectronic sensor. The sensor ... -
ACCRETION DISKS WITH A LARGE SCALE MAGNETIC FIELD AROUND BLACK HOLES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)We consider accretion disks around black holes at high luminosity, and the problem of the formation of a large-scale magnetic field in such disks, taking into account the non-uniform vertical structure of the disk. The ... -
Active disturbance rejection control-based anti-coupling method for conical magnetic bearings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Conical-shape magnetic bearings are currently a potential candidate for various magnetic force-supported applications due to their unique geometric nature reducing the number of required active magnets. However, the bearing ... -
AD HOC TEAMWORK BEHAVIORS FOR INFLUENCING A FLOCK
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)Ad hoc teamwork refers to the challenge of designing agents that can influence the behavior of a team, without prior coordination with its teammates. This paper considers influencing a flock of simple robotic agents to ... -
ADAPTIVE DISTRIBUTION OF A SWARM OF HETEROGENEOUS ROBOTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)We present a method that distributes a swarm of heterogeneous robots among a set of tasks that require specialized capabilities in order to be completed. We model the system of heterogeneous robots as a community of species, ... -
ADAPTIVE WAVELETS SLIDING MODE CONTROL FOR A CLASS OF SECOND ORDER UNDERACTUATED MECHANICAL SYSTEMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)The control of underactuated mechanical systems (UMS) remains an attracting field where researchers can develop their control algorithms. To this date, various linear and nonlinear control techniques using classical and ... -
Additive Laser Barcode Printing on High Reflective Stainless Steel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)In this paper, the process of an additive laser marking on stainless steel parts for barcode printing is presented. It is based on the use of one transition metal oxide chemically-well bonded to the stainless steel substrate, ... -
Adhesive Bonding of Aluminium Alloy A5754 by Epoxy Resins
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Joining thin sheets of aluminium and its alloys is a promising area in the field of joining materials. Nowadays, joining methods that do not melt the material itself are increasingly being utilised. This paper deals with ... -
ADSORPTION OF CATIONIC DYE FROM AQUEOUS SOLUTION USING COMPOSITE CHICKEN EGGSHELL - ANTHILL CLAY: OPTIMIZATION OF ADSORBENT PREPARATION CONDITIONS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)A composite adsorbent was prepared from anthill and eggshell mixture, using an incipient wetness impregnation method and it was used for an adsorption of cationic dye (methylene blue, MB) from an aqueous solution. The ... -
Advanced Functions of a Modern Power Source for GMAW Welding of Steel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper evaluates the use of a modern welding power source equipped with advanced arc control functions. At the Laboratory of Welding Technologies of CTU in Prague we have focused on GMAW welding of steel using Sigma ... -
AERODYNAMIC LOAD OF AN AIRCRAFT WITH A HIGHLY ELASTIC WING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)In this article, a method for calculation of air loads of an aircraft with an elastic wing is presented. The method can predict a redistribution of air loads when the elastic wing deforms. Unlike the traditional Euler or ... -
AGILE DATA CENTER AT ASDC AND AGILE HIGHLIGHTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)We present an overview of the main AGILE Data Center activities and the AGILE scientific highlights during the first 5 years of operations. AGILE is an ASI space mission in joint collaboration with INAF, INFN and CIFS, ... -
ALGEBRAIC DESCRIPTION OF SHAPE INVARIANCE REVISITED
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)We revisit the algebraic description of shape invariance method in one-dimensional quantum mechanics. In this note we focus on four particular examples: the Kepler problem in flat space, the Kepler problem in spherical ... -
Algorithms for Solving Darcian Flow in Structured Porous Media
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)This paper presents several algorithms that were implemented in DRUtES [1], a new open source project. DRUtES is a finite element solver for coupled nonlinear parabolic problems, namely the Richards equation with the dual ... -
ALTERNATIVE SELECTION FUNCTIONS FOR INFORMATION SET MONTE CARLO TREE SEARCH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)We evaluate the performance of various selection methods for the Monte Carlo Tree Search algorithm in two-player zero-sum extensive-form games with imperfect information. We compare the standard Upper Confident Bounds ... -
AN AIRPLANE WITH UNCONVENTIONALLY PLACED PROPELLER POWER UNIT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The significance of the influence of operating propellers on the aircraft aerodynamic characteristics is well-known. Wind tunnel testing of an airplane model with operating propellers is a complex task regarding the required ... -
AN ANALYSIS OF SPATIAL STRUCTURE OF URBAN REGIONAL NETWORKS USING GIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)Road network is the foundation of the urbanization process. Initially, it represented an indispensable part not only for the very existence of cities but also for their further economic and social development. Gradually ... -
AN ANALYSIS OF THE LIQUID FILMS BREAK-UP USING THE COMPUTER VISION TECHNIQUE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)The aim of this paper is to introduce a novel approach for analysing the droplet formation in a transonic flow. The method suggested in this work is based on the combination of the measured data from the wind tunnel by an ... -
An Application of the Individual Channel Analysis and Design Approach to Control of a Two-input Two-output Coupled-tanks System
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Frequency-domain methods have provided an established approach to the analysis and design of single-loop feedback control systems in many application areas for many years. Individual Channel Analysis and Design (ICAD) is ... -
AN EXPERIMENTAL ASSESSMENT OF THE PLATE HEAT EXCHANGER CHARACTERISTICS BY WILSON PLOT METHOD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)An aim of this paper is suggestion of the evaluation method based on the experimental data and the Wilson plot method for the Plate Heat Exchangers (PHE). For the purpose of the project the new experimental loop was built ...