Procházení Acta Polytechnica. 2014, vol. 54 dle data publikování

Zobrazují se záznamy 1-20 z 73

    • 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. ...

    • COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM 

      Autor: Socha , Vladimir; Kutilek , Patrik; Cakrt , Ondrej; Cerny , Rudolf
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Assessments of body-segment angular movements are very important in the rehabilitation process. Head angular movements are measured and analyzed for use in studies of stability and posture. However, there is no methodology ...

    • 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 ...

    • BEYOND THE STANDARD MODEL OF THE DISC–LINE SPECTRAL PROFILES FROM BLACK HOLE ACCRETION DISCS 

      Autor: Sochora , Vjaceslav; Karas , Vladimír; Svoboda , Jirí; Dovciak , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The strong gravitational field of a black hole has distinct effects on the observed profile of a spectral line from an accretion disc near a black hole. The observed profile of the spectral line is broadened and skewed by ...

    • INHIBITION OF CANDIDA ALBICANS GROWTH ON SURFACES TREATED BY DIELECTRIC BARRIER DISCHARGE WITH VARIOUS BARRIERS 

      Autor: Sláma , Jan; Kríha , Vítezslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Discharges generating low temperature plasma at atmospheric pressure have the potential to treat surfaces biologically contaminated by organic matter in a non-destructive manner. We have been studying ways of inhibiting ...

    • 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 ...

    • ON TWO WAYS TO LOOK FOR MUTUALLY UNBIASED BASES 

      Autor: Kibler R., Maurice
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Two equivalent ways of looking for mutually unbiased bases are discussed in this note. The passage from the search for d+1 mutually unbiased bases in Cd to the search for d(d+1) vectors in Cd2 satisfying constraint relations ...

    • DIRAC AND HAMILTON 

      Autor: Leach G. L., P.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Dirac devised his theory of Quantum Mechanics and recognised that his operators resembled the canonical coordinates of Hamiltonian Mechanics. This gave the latter a new lease of life. We look at what happens to Dirac’s ...

    • LOCAL VELOCITY PROFILES MEASURED BY PIV IN AN VESSEL AGITATED BY RUSHTON TURBINE 

      Autor: Šulc , Radek; Pešava , Vít; Ditl , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The hydrodynamics and flow field were measured in an agitated vessel using 2-D Time Resolved Particle Image Velocimetry (2-D TR PIV). The experiments were carried out in a fully baffled cylindrical flat bottom vessel 300 ...

    • INFRARED PHOTOLUMINESCENCE SPECTRA OF PBS NANOPARTICLES PREPARED BY LANGMUIR–BLODGETT AND LASER ABLATION METHODS 

      Autor: Remes , Zdeněk; Novak , Tomas; Stuchlik , Jiri; Stuchlikova , The-ha; Dřínek , Vladislav; Fajgar , Radek; Zhuravlev , Konstantin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      We optimized the optical setup originally designed for the photoluminescence measurements in the spectral range 400‒1100 nm. New design extends the spectral range into the near infrared region 900‒1700 nm and allows the ...

    • OBLIQUE MAGNETIC FIELDS AND THE ROLE OF FRAME DRAGGING NEAR ROTATING BLACK HOLE 

      Autor: Karas , Vladimír; Kopáček , Ondřej; Kunneriath , Devaky
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Magnetic null points can develop near the ergosphere boundary of a rotating black hole by the combined effects of strong gravitational field and the frame-dragging mechanism. The induced electric component does not vanish ...

    • INFLUENCE OF SUBSTRATE THICKNESS ON DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE PROPERTIES 

      Autor: Čech , Jan; Zemánek , Miroslav; Sťahel , Pavel; Dvořáková , Hana; Černák , Mirko
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      In presented work the influence of dielectric barrier thickness on the parameters of Diffuse Coplanar Surface Barrier Discharge was investigated. The discharge was operated at atmospheric pressure laboratory air. The ...

    • DEPOSITION CARBON NANOSTRUCTURES BY SURFATRON GENERATED DISCHARGE 

      Autor: Davydova , Marina; Smid , Jiri; Hubicka , Zdenek; Kromka , Alexander
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Carbon nanostructures were deposited by surface wave discharge using various Ar/CH4/ CO2 gas mixture ratios. The morphology was controlled by adjusting of gas concentration and was investigated by scanning electron microscopy ...

    • SHAPE OF A NUCLEUS GROWING ON STRONGLY CURVED SURFACE OF A NANOFIBER 

      Autor: Sveshnikov , Alexey; Demo , Pavel; Kožíšek , Zdeněk; Tichá , Petra
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The equilibrium shape of a critical nucleus has strong impact on important parameters of nucleation theory, such as nucleation rate. While on the flat substrate the growing nucleus has a shape of a spherical cap, a shape ...

    • AUTOMORPHISMS OF ALGEBRAS AND ORTHOGONAL POLYNOMIALS 

      Autor: Gromada , Daniel; Pošta , Severin
      (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 ...

    • EFFECTIVE USE OF ROTARY FURNACE SHELL HEAT 

      Autor: Lisuch , Julius; Dorcak , Dusan; Spisak , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Significant proportion of the total energy expenditure for the heat treatment of raw materials are heat losses through the shell of rotary furnace. Currently, the waste heat is not used in any way and escapes into the ...

    • FACT — STATUS AND FIRST RESULTS 

      Autor: Dorner , Daniela; Biland , A.; Bretz , T.; Buss , J.; Einecke , S.; Eisenacher , D.; Hildebrand , D.; Knoetig L., M.; Krähenbühl , T.; Lustermann , W.; Mannheim , K.; Meier , K.; Neise , D.; Overkemping , A.-K.; Paravac , A.; Pauss , F.; Rhode , W.; Ribordy , M.; Steinbring , T.; Temme , F.; Thaele , J.; Vogler , P.; Walter , R.; Weitzel , Q.; Zänglein , M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      FACT is the first imaging Cherenkov telescope based on a camera using solid state photosensors (Geigermode Avalanche Photodiodes G-APD aka SiPM). Since October 2011, it has been taking data regularly. Apart from commissioning ...

    • STATIC TESTS OF UNCONVENTIONAL PROPULSION UNITS FOR ULTRALIGHT AIRPLANES 

      Autor: Helmich , Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper presents static tests of a new unconventional propulsion unit for small aviation airplanes. Our laboratory stand – a fan drive demonstrator – enables us to compare various design options. We performed experiments ...

    • EXACT RENORMALIZATION GROUP FOR POINT INTERACTIONS 

      Autor: Turgut Teoman, Osman Teoman Turgut; Eröncel , Cem
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Renormalization is one of the deepest ideas in physics, yet its exact implementation in any interesting problem is usually very hard. In the present work, following the approach by Glazek and Maslowski in the flat space, ...

    • 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 ...