Poslední příspěvky

  • ANALYSIS OF PARAMETERS AFFECTING THE QUALITY OF A CUTTING MACHINE 

    Autor: Onderová , Iveta; Šooš , Lubomír
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The quality of cutting machines is affected by several factors that can be directly or indirectly influenced by manufacturers, technicians and users of machine tools. The most critical qualitative evaluation parameters of ...
  • THE INFLUENCE OF SIZE FRACTION ON THE COMPRESSIBILITY OF PINE SAWDUST AND THE EFFECTIVENESS CRITERION FOR DENSIFICATION 

    Autor: Matúš , Miloš; Križan , Peter; Kováčová , Monika; Beniak , Juraj
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    Particulate matter from biomass, e.g. wood sawdust, is very diverse. The basic parameter describing the densification process of particulate matter is its compressibility, quantified by the coefficient of compressibility. ...
  • THE EFFECT OF ADDING HYDROGEN ON THE PERFORMANCE AND THE CYCLIC VARIABILITY OF A SPARK IGNITION ENGINE POWERED BY NATURAL GAS 

    Autor: Chríbik , Andrej; Polóni , Marián; Lach , Ján; Ragan , Branislav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    This paper deals with the influence of blending hydrogen (from 0 to 50% vol.) on the parameters and the cyclic variability of a Lombardini LGW702 combustion engine powered by natural gas. The experimental measurements were ...
  • LABORATORY EQUIPMENT FOR AUTOTHERMAL REFORMING OF ORGANIC MATTER IN SUPERCRITICAL WATER 

    Autor: Gajdoš , Matúš
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The ability of water to dissolve organic substances is very limited. However, its ability to dissolve them changes if pressure and temperature values reach the so-called critical point (p = 22.06MPa, T = 373.95 °C). Fluid ...
  • SIZE ANALYSIS OF SOLID PARTICLES AT THE EXPERIMENTAL DEVICE FOR MULTISTAGE BIOMASS COMBUSTION 

    Autor: Hrnčířová , Michaela; Špiláček , Michal; Pospíšil , Jiří
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    This paper presents the results of an analysis of ash content particles produced in biomass combustion at an experimental device. The main parts of the device are: the water heater, the gasifying chamber, the air preheater, ...
  • EXPERIMENTAL VERIFICATION OF THE STRUCTURAL AND TECHNOLOGICAL PARAMETERS OF THE PKS 

    Autor: Onderová , Iveta; Kolláth , Ludovít; Ploskuňáková , Lucia
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    This paper presents the theoretical design for experimental verification of the structural and technological parameters of the Parallel Kinematic Structure. The experimental equipment was developed at the Faculty of ...
  • AUTOMATIC BIOMASS BOILER WITH AN EXTERNAL THERMOELECTRIC GENERATOR 

    Autor: Brázdil , Marian; Šnajdárek , Ladislav; Kracík , Petr; Pospíšil , Jirí
    (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 ...
  • TECHNICAL AND ECONOMIC OPTIMIZATION OF COGENERATION TECHNOLOGY USING COMBUSTION AND GASIFICATION 

    Autor: Lisý , Martin; Baláš , Marek; Špiláček , Michal; Skála , Zdenek
    (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 ...
  • THE OPERATING LOAD OF A DISINTEGRATION MACHINE 

    Autor: Beniak , Juraj; Križan , Peter; Matúš , Miloš; Kováčová , Monika
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The process of disintegration is affected by a large number of operating and design parameters which have not previously been described in detail. This paper discusses the effect of the disintegrative surface area on the ...
  • ELIMED: MEDICAL APPLICATION AT ELIBEAMLINES STATUS OF THE COLLABORATION AND FIRST RESULTS 

    Autor: Schillaci , Francesco; Cirrone A. P., Giuseppe; Korn , George; Maggiore , Mario; Margarone , Daniele; Calabretta , Luciano; Cavallaro , Salvatore; Cuttone , Giacomo; Gammino , Santo; Krasa , Josef; Prokupek , Jan; Velyhan , Andriy; Renis , Marcella; Romano , Francesco; Tomasello , Barbara; Torrisi , Lorenzo; Cutroneo , Mariapompea; Tramontana , Antonella
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    ELI-Beamlines is one of the four pillars of the ELI (Extreme Light Infrastructure) pan-European project. It will be an ultrahigh-intensity, high repetition-rate, femtosecond laser facility whose main goal is to generate ...
  • PHOTOMETRIC ANALYSIS OF PI OF THE SKY DATA 

    Autor: Opiela , Rafał; Małek , Katarzyna; Mankiewicz , Lech; Siudek , Małgorzata; Sokołowski , Marcin; Zarnecki Filip, Aleksander
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    Pi of the Sky is a system of two wide field of view robotic telescopes, which search for short timescale astrophysical phenomena, especially for prompt optical GRB emissions. The system was designed for autonomous operation, ...
  • USING PHOTOPLETHYSMOGRAPHY IMAGING FOR OBJECTIVE CONTACTLESS PAIN ASSESSMENT 

    Autor: Koeny , Marcus; Blanik , Nikolai; Yu , Xinchi; Czaplik , Michael; Walter , Marian; Rossaint , Rolf; Blazek , Vladimir; Leonhardt , Steffen
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    This work presents an extension to the known Analgesia Nociception Index (ANI), which provides an objective estimation of the current depth of analgesia. An adequate “measure” would facilitate so-called balanced anesthesia. ...
  • ON OBSERVATIONAL PHENOMENA RELATED TO KERR SUPERSPINARS 

    Autor: Stuchlik , Zdenek; Schee , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    We investigate possible signatures of a Kerr naked singularity (superspinar) in various observational phenomena. It has been shown that Kerr naked singularities (superspinars) have to be efficiently converted to a black ...
  • INCYLINDER MASS FLOW ESTIMATION AND MANIFOLD PRESSURE DYNAMICS FOR STATE PREDICTION IN SI ENGINES 

    Autor: Sławomir , Wojnar; Rohal-Ilkiv , Boris; Šimončic , Peter; Honek , Marek; Jozef , Csambál
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The aim of this paper is to present a simple model of the intake manifold dynamics of a spark ignition (SI) engine and its possible application for estimation and control purposes. We focus on pressure dynamics, which may ...
  • STATISTICAL PROPERTIES OF GRB AFTERGLOW PARAMETERS AS EVIDENCE OF COSMOLOGICAL EVOLUTION OF THEIR HOST GALAXIES 

    Autor: Beskin , Gregory; Oganesyan , Gor; Greco , Giuseppe; Karpov , Sergey
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The results of a study of 43 peaked R-band light curves of optical counterparts of gamma-ray bursts with known redshifts are presented. The parameters of optical transients were calculated in the comoving frame, and then ...
  • SEARCH FOR ISOLATED BLACK HOLES: PAST PRESENT FUTURE 

    Autor: Karpov , Sergey; Beskin , Grigory; Plokhotnichenko , Vladimir
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The critical property of a black hole is the presence of an event horizon. It may be detected only by means of a detailed study of the emission features of its surroundings. The temporal resolution of such observations has ...
  • LOWMASS BINARY XRAY SOURCES: MONITORING WITH VARIOUS SATELLITES 

    Autor: Šimon , Vojtěch
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    We show the importance of observing low-mass binary (LMXB) X-ray sources with the X-ray monitors onboard satellites. This enables us to study the physical processes governing the longterm activity of LMXBs. They are excellent ...
  • IMPACT OF STRAIN RATE ON MICROALLOYED STEEL SHEET BREAKING 

    Autor: Mihaliková , Mária; Német , Miroslav; Vojtko , Marek
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    Strain rate is a significant external factor and its influence on material behavior in forming process is a function of its internal structure. The contribution is analysis of the impact of loading rate from 1.6 x 10-4 ...
  • THE COUPLEDCLUSTER APPROACH TO QUANTUM MANYBODY PROBLEM IN A THREEHILBERTSPACE REINTERPRETATION 

    Autor: Bishop F., Raymond; Znojil , Miloslav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    The quantum many-body bound-state problem in its computationally successful coupled cluster method (CCM) representation is reconsidered. In conventional practice one factorizes the groundstate wave functions |Ψ) = eS |Φ) ...
  • A BOSEEINSTEIN CONDENSATE WITH PTSYMMETRIC DOUBLEDELTA FUNCTION LOSS AND GAIN IN A HARMONIC TRAP: A TEST OF RIGOROUS ESTIMATES 

    Autor: Haag , Daniel; Cartarius , Holger; Wunner , Günter
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
    We consider the linear and nonlinear Schrödinger equation for a Bose-Einstein condensate in a harmonic trap with PT-symmetric double-delta function loss and gain terms. We verify that the conditions for the applicability ...

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