Zobrazují se záznamy 31-130 z 2210

    FEM (1)
    femtosecond beams (1)
    femtosecond electron beams (1)
    Femtosecond laser (1)
    femtosecond laser (1)
    femtosecond laser pulses,laser interaction,plasma,electron acceleration,electron spectrometer,energy measurement (1)
    femtosekundové elektrónové zväzky (1)
    femtosekundové laserové impulsy, OPCPA, jódový laser (1)
    femtosekundové laserové impulzy,interakce laseru,plazma,urychlování elektronů,elektronový spektrometr,měření energie (1)
    femtosekundové svazky (1)
    Femtosekundový laser (1)
    femtosekundový laser (1)
    Fermi coordinates (1)
    Fermiho souřadnice (1)
    Fermilab (1)
    feromagnetism (1)
    feromagnetizmus (1)
    ferromagnetic shape memory alloys (1)
    few-body systems (1)
    FGSM (1)
    fiber laser (1)
    Fibonacci (2)
    fibroblasts (1)
    fibroblasty (1)
    field crop classification (1)
    field gamma spectrometry (1)
    field of view (1)
    Filamentace (1)
    Filamentation (1)
    filtered back projection (1)
    filtro- vaná spätná projekcia (1)
    filtrování dat (1)
    financial analysis (1)
    Financial market prediction (1)
    financial market simulator (1)
    financial markets (3)
    Financial markets,Wiener process,classes of distributions,multifractal analysis,ARCH (1)
    finanční analýza (1)
    finanční trhy (3)
    Finanční trhy,Wienerův proces,třídy distribucí,multifraktální analýza,ARCH (1)
    finite dfference method (1)
    finite difference method (6)
    finite difference method,transient temperature model,fuel thermomechanics,ANDREA,TRANSURANUS,TVSA-T (1)
    Finite Element Method (1)
    finite element method (2)
    finite elements method (1)
    finite volume (1)
    finite volume method (4)
    finite-difference method (1)
    first wall (1)
    first wall materials (1)
    FISPACT (1)
    fission products (2)
    Fitz Hughův Nagumův model (1)
    FitzHugh-Nagumo model (2)
    FitzHugh-Nagumo model,invariant region,parametric study,reaction dynamics (1)
    FitzHugh-Nagumův model,invariantní region,parametrická studie,reakční dynamika (1)
    FitzHughův Nagumův model (1)
    FitzHughův-Nagumův model (1)
    FitzHughův–Nagumův model (1)
    FitzHugh–Nagumo model (1)
    fixed point of a morphism (1)
    fixed point of morphism (1)
    flame resistance (1)
    FLASH code (1)
    flavoproteinss (1)
    flexibilní provoz jaderných elektráren (1)
    Flexible operation of Nuclear Powerplants (1)
    Floquetova teorie (1)
    flow simulation on GPU (2)
    flowability (1)
    fluctuation (1)
    Fluctuations of particle number (1)
    Fluid flow numerical simulations (1)
    Fluid modeling of laser interaction with porous materials (1)
    Fluidní modelování (1)
    FLUKA (1)
    fluktuace (1)
    fluktuace anizotropního toku (1)
    Fluktuace počtu částic (1)
    fluorescence, optical spectroscopy, single molecule detection, biomolecule encapsulation (1)
    Fluoride crystal,neodymium laser,neodymium ion cluster,co-dopant,passive mode locking,saturable absorber (1)
    fluoride matrices (1)
    fluoridové matrice (1)
    Fluoridový krystal,neodymový laser,shluk neodymových iontů,kodopant,pasivní fázová synchronizace,polovodičový saturovatelný absorbér (1)
    Flux-Based Remap (1)
    focused ion beam (1)
    focused ion beam micro-machining (1)
    fokusace,PIC simulace,laser-plazma interakce,optika (1)
    fokusovaný iontový svazek (1)
    fonony (1)
    For this purpose,measurements in vitro were carried out using plastic flow phantom with the possibility to change the rate of constant flow. Spatial resolution was also altered. To simulate non-laminar flow,an artificial valve was inserted into the phantom tube. The error of eddy currents effect as well as its dependence on slice orientation was subsequently measured using a static gel phantom. Examination of two pacients,one with a healthy aortal valve and the other with a valve stenosis,were performed. These data were used to assess the error resulting from an under- and oversized ROI and from a temporal resolution.It was found out that the noise error (0.05%) of constant flow stroke volume is neglectable compared to flow fluctuations (0.25%). The partial volume effect resulted in more severe error (+0.45%) in the in vivo measurement. The error of eddy currents effect was not evaluated with certainty,we estimate a value of 3 %. An undersized ROI may result in fatal underestimation of stroke volume,whereas an oversized boundary leads to an error up to 6%. The non-laminar flow stroke volume error was of +8% in our case.The over-all error of all investigated effects combined remains below 10% for laminar flow. It is important to note,however,that not all possible sources of errors were examined and also that some of the erros were assessed in vitro only. Additionally,some of the measured data suggest a possibly not negligible stroke volume changes dependent on pacient's heart rate (1)
    Forensic audit, Investigation, System design, Database, Data collection (1)
    Forenzní audit, Vyšetřování, Návrh systému, Databáze, Sběr dat (1)
    forgetting (1)
    form application (1)
    forms of relativistic dynamics (1)
    formulářová aplikace (1)
    formy relativistické dynamiky (1)
    Fortunes algorithm (1)