Now showing items 9-28 of 37

    • Estimation of Amount of Scattered Neutrons at Devices PFZ and GIT12 by MCNP Simulations 

      Author: Šíla , Ondrej; Kubeš , Pavel; Kravárik , Josef; Rezác , Karel; Klír , Daniel; Cikhardt , Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Our work is dedicated to pinch effect occurring during current discharge in deuterium plasma, and our results are connected with two devices – plasma focus PFZ, situated in the Faculty of Electrical Engineering, CTU, Prague, ...
    • Fractal Dimension Estimation in Diagnosing Alzheimer’s Disease 

      Author: Hubata-Vacek , Václav; Kukal , Jaromír; Rusina , Robert; Buncová , Marie
      (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 ...
    • Growth and Physical Structure of Amorphous Boron Carbide Deposited by Magnetron Sputtering on a Silicon Substrate with a Titanium Interlayer 

      Author: Caniello , Roberto; Vassallo , Espedito; Cremona , Anna; Grosso , Giovanni; Dellasega , David; Canetti , Maurizio; Miorin , Enrico
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Multilayer amorphous boron carbide coatings were produced by radiofrequency magnetron sputtering on silicon substrates. To improve the adhesion, titanium interlayers with different thickness were interposed between the ...
    • HighSpeed Monitoring of Dust Particles in ITER ELMs Simulation Experiments with QSPA Kh50 

      Author: Makhlaj , Vadym A.; Garkusha , Igor E.; Aksenov , Nikolay N.; Chuvilo , Alexander A.; Landman , Igor S.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Dust generation under powerful plasma stream impacts has been studied in ITER ELM simulation experiments with QSPA Kh-50 plasma accelerator. Repetitive plasma exposures of tungsten have been performed by 0.25 ms plasma ...
    • Ignition Features of PlasmaBeam Discharge in GasDischarge Electron Gun Operation 

      Author: Tutyk , Valery A.; Ovcharuk , Anatoliy N.; Gasik , Michail I.; Maslenikov , Dmitriy V.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The current paper presents the results of experimental researches to determine the mode features of plasma-beam discharge (PBD) generation by an electron beam injected by a low-vacuum gasdischarge electron gun (LGEG) with ...
    • In memory of Alois Apfelbeck: An Interconnection between CayleyEisensteinPólya and Landau Probability Distributions 

      Author: Vojta , Vladimír
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The interconnection between the Cayley-Eisenstein-Pólya distribution and the Landau distribution is studied, and possibly new transform pairs for the Laplace and Mellin transform and integral expressions for the Lambert W ...
    • Inactivation of Candida albicans by Corona Discharge: The Increase of Inhibition Zones Area After Far Subsequent Exposition 

      Author: Fantova , Vladyslava; Bujaček , Karol; Kříha , Vítězslav; Julák , Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The cold atmospheric pressure plasma generated by the negative corona discharge has inhibition effect on the microorganism growth. This effect is well-known and it can be demonstrated on the surface of cultivation agar ...
    • Instability Growth Rate Dependence on Input Parameters During the Beam–Target Plasma Interaction 

      Author: Horký , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The two-stream instability without magnetic field is described by the well-known Buneman dispersion relation. For more complicated situations we need to use the Generalized Buneman Dispersion Relation derived by Kulhánek, ...
    • Local Magnetohydrodynamic Characteristics of the Plasma Stream generated by MPC 

      Author: Cherednychenko , Tatyana N.; Garkusha , Igor E.; Chebotarev , Vladimir V.; Solyakov , Dmytro G.; Petrov , Yuriy V.; Ladygina , Maryna S.; Eliseev , Dmytro V.; Chuvilo , Alexander A.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This paper investigates the spatial distributions of electrical current which flows inside the plasma stream generated by a magnetoplasma compressor (MPC). Two different modes of MPC operation with different gas supply ...
    • LongLived Plasma Process Created by Impulse Discharge in MicroDisperse Droplet Environment 

      Author: Olszewski , Serge; Lisitchenko , Tamara; Yukhymenko , Vitalij
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The processes of organic compound (phenol and cation-active surfactants) destruction in water solutions, which stay under the influence of plasma treatment have been investigated in different dynamic plasma-liquid systems ...
    • Materials for Fusion Applications 

      Author: Matějíček , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      An overview of materials foreseen for use or already used in fusion devices is given. The operating conditions, material requirements and characteristics of candidate materials in several specific application segments are ...
    • Modification of Composite Material Fillers by Atmospheric Plasma Discharge 

      Author: Tichy , David; Hajkova , Pavlina
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This work is focused on the observation of the influence of cold atmospheric dielectric barrier discharge (DBD) on a modification of textile samples. The main objective of the experiment is to research wettability change ...
    • Multigroup Approximation of Radiation Transfer in SF6 Arc Plasmas 

      Author: Bartlova , Milada; Aubrecht , Vladimir; Bogatyreva , Nadezhda; Holcman , Vladimir
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The first order of the method of spherical harmonics (P1-approximation) has been used to evaluate the radiation properties of arc plasmas of various mixtures of SF6 and PTFE ((C2F4)n, polytetrafluoroethylene) in the ...
    • Nuclear Fusion Effects Induced in Intense LaserGenerated Plasmas 

      Author: Torrisi , Lorenzo; Cavallaro , Salvatore; Cutroneo , Mariapompea; Krasa , Josef
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Deutered polyethylene (CD2)n thin and thick targets were irradiated in high vacuum by infrared laser pulses at 1015W/cm2 intensity. The high laser energy transferred to the polymer generates plasma, expanding in vacuum at ...
    • Pin Hole Discharge Creation in Na2SO4 Water Solutions 

      Author: Hlavatá , Lucie; Serbanescu , Rodica; Hlochová , Lenka; Kozáková , Zdenka; Krčma , František
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This work deals with the diaphragm discharge generated in water solutions containing Na2SO4 as a supporting electrolyte. The solution conductivity was varied in the range of 270 ÷ 750 µScm-1. The batch plasma reactor with ...
    • Plasma–Surface Interactions Under High Heat and Particle Fluxes 

      Author: Temmerman , Gregory De; Bystrov , Kirill; Liu , Feng; Liu , Wei; Morgan , Thomas; Tanyeli , Irem; Berg , Miranda van den; Xu , Haiyan; Zielinski , Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The plasma-surface interactions expected in the divertor of a future fusion reactor are characterized by extreme heat and particle fluxes interacting with the plasma-facing surfaces. Powerful linear plasma generators are ...
    • Positioning of the Precursor Gas Inlet in an Atmospheric Dielectric Barrier Reactor and its Effect on the Quality of Deposited TiOx Thin Film Surface 

      Author: Píchal , Jan; Klenko , Julia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Thin film technology has become pervasive in many applications in recent years, but it remains difficult to select the best deposition technique. A further consideration is that, due to ecological demands, we are forced ...
    • Predictive Models in Diagnosis of Alzheimer’s Disease from EEG 

      Author: Tylova , Lucie; Kukal , Jaromir; Vysata , Oldrich
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The fluctuation of an EEG signal is a useful symptom of EEG quasi-stationarity. Linear predictive models of three types and their prediction error are studied via traditional and robust measures. The resulting EEG ...
    • Proton and radiation of the MicroPinch with the BoronContaining Target 

      Author: Gurin , Anatolii A.; Adamenko , Andrii S.; Adamenko , Stanislav V.; Kuzmenko , Mykola M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Using ion pinhole camera and track detectors, the image of hot spot is recorded in a pulsed diode micro-pinch equipped with a solid anode target. The track image is a record of repeated fronts of fast protons with energies ...
    • Stimulated Raman Backscattering in Plasma — a Promising Tool for the Generation of UltraHigh Power Laser Beams 

      Author: Turčičová , Hana; Huynh , Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In the last fifteen years stimulated Raman backscattering (SRBS) in plasma has been intensively elaborated as a promising tool on the way towards high intense lasers. There are several advantages of this technique in ...