Prohlížení Acta Polytechnica dle názvu
Zobrazují se záznamy 336-355 z 880
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Finding Hidden Treasures: Investigations in US Astronomical Plate Archives
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)We report here on an ongoing investigation of US astronomical plate archives and tests of the suitability of transportable scanning devices for in situ digitization of archival astronomical plates. -
FINITE ELEMENT ANALYSIS OF AORTAL BIFURCATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Arterial bifurcations loaded by internal pressure represent significant stress concentrators. Increased mechanical stress inside arterial wall probably accelerates pathogenic processes at these places. Stress concentration ... -
FINITE ELEMENT MODELLING AND SIMULATION OF VEHICLE IMPACT ON STEEL SAFETY BARRIERS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)This paper deals with a FEA simulation of the vehicle crash with steel safety barriers in ANSYS LS-DYNA® 15.0. Two types of safety barriers are used: JSNH4/H2 and JSAM-2/H2. A geometrical model of the barrier in the Modeler ... -
Flexible Multi-Electrode Array for Medical Applications
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)A flexible multi-electrode array (MEA) with an embedded silicon chip for electrical stimulation of neurons or for recording action potentials has been manufactured and characterized. Possible improvements for medical ... -
FMEA and FTA Analyses of the Adhesive Joining Process using Electrically Conductive Adhesives
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper introduces a formulation of appropriate risk estimation methods that can be used for improving of processes in the electronics area. Two risk assessment methods have been chosen with regard to the specifics of ... -
FOREWORD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2021) -
FOREWORD: THREE QUARTERS A CENTURY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Foreword -
FORMATION CONTROL OF MULTIPLE UNICYCLE-TYPE ROBOTS USING LIE GROUP
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)In this paper the formation control of a multi-robots system is investigated. The proposed control law, based on Lie group theory, is applied to control the formation of a group of unicycle-type robots. The communication ... -
Fractal Dimension Estimation in Diagnosing Alzheimer’s Disease
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Estimated entropies from a limited data set are always biased. Consequently, it is not a trivial task to calculate the entropy in real tasks. In this paper, we used a generalized definition of entropy to evaluate the ... -
FRACTIONAL CALCULUS AND LAMBERT FUNCTION I. LIOUVILLE–WEYL FRACTIONAL INTEGRAL
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)The interconnection between the Liouville–Weyl fractional integral and the Lambert function is studied. The class of modified Abel equations of the first kind is solved. A new integral formula for the Gamma function and ... -
Fractional multi-loop active disturbance rejection control for a lower knee exoskeleton system
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)Rehabilitation Exoskeleton is becoming more and more important in physiotherapists’ routine work. To improve the treatment performance, such as reducing the recovery period and/or monitoring and reacting to unpredictable ... -
FROM GALACTIC TO EXTRAGALACTIC JETS: A REVIEW
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)An analysis of the data that have recently become available from observing campaigns, including VLA, VLBA, and satellite instruments, shows some remarkable similarities and significant differences in the data from some ... -
From positional representation of numbers to positional representation of vectors
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)To represent real m-dimensional vectors, a positional vector system given by a non-singular matrix M ∈ ℤm×m and a digit set Ɗ ⊂ ℤm is used. If m = 1, the system coincides with the well known numeration system used to ... -
From quartic anharmonic oscillator to double well potential
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Quantum quartic single-well anharmonic oscillator Vao(x) = x2 + g2x4 and double-well anharmonic oscillator Vdw(x) = x2(1−gx)2 are essentially one-parametric, they depend on a combination (g2ℏ). Hence, these problems are ... -
Functional aerodynamics and its influence on the energy and thermal mode of a naturally ventilated double-skin transparent façade
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)This article deals with the dynamics of airflow through a cavity. In windless conditions, where a natural flow causes the flow of air in the cavity, the overall aerodynamic resistance of the cavity is the important aerodynamic ... -
FUNCTIONAL REALIZATIONS OF LIE ALGEBRAS AS NOETHER POINT SYMMETRIES OF SYSTEMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)Functional realizations of Lie algebras are applied to the problem of determining Lie and Noether point symmetries of Lagrangian systems in N dimensions, particularly in the plane. This encompasses both the case of ... -
Fundamental Research on Hydraulic Systems Driven by Alternating Flow
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper presents a new approach to rotary hydraulic systems, and the functional principles of rotary hydraulic systems that can work using alternating flows. Hydraulic transmissions using alternating flows are based on ... -
FURTHER GENERALISATIONS OF THE KUMMER-SCHWARZ EQUATION: ALGEBRAIC AND SINGULARITY PROPERTIES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The Kummer–Schwarz Equation, 2y'y'''− 3(y'')2 = 0, has a generalisation, (n − 1)y(n−2)y(n) − ny(n−1)2 = 0, which shares many properties with the parent form in terms of symmetry and singularity. All equations of the class ... -
GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Supernova remnants, owing to their strong shock waves, are likely sources of Galactic cosmic rays. Studies of supernova remnants in X-rays and gamma rays provide us with new insights into the acceleration of particles to ... -
GALACTIC CENTER MINISPIRAL: INTERACTION MODES OF NEUTRON STARS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Streams of gas and dust in the inner parsec of the Galactic center form a distinct feature known as the Minispiral, which has been studied in radio waveband as well as in the infrared wavebands. A large fraction of the ...