Prohlížení Acta Polytechnica. 2013, vol. 53, no. 2 dle názvu
Zobrazují se záznamy 12-31 z 39
-
Growth and Physical Structure of Amorphous Boron Carbide Deposited by Magnetron Sputtering on a Silicon Substrate with a Titanium Interlayer
(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 ... -
High-Speed Monitoring of Dust Particles in ITER ELMs Simulation Experiments with QSPA Kh-50
(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 Plasma-Beam Discharge in Gas-Discharge Electron Gun Operation
(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 Cayley-Eisenstein-Pólya and Landau Probability Distributions
(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
(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
(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
(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 ... -
Long-Lived Plasma Process, Created by Impulse Discharge in Micro-Disperse Droplet Environment
(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
(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
(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
(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 Laser-Generated Plasmas
(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 ... -
Physical and Electrical Properties of Yttria-Stabilized Zirconia Thin Films Prepared by Radio Frequency Magnetron Sputtering
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)This paper presents the electrophysical characteristics of a 7 mol.% yttria-stabilized zirconia (YSZ) thin film deposited by radio-frequency magnetron sputtering. In order to form the crystallinestructure, the deposited ... -
Pin Hole Discharge Creation in Na2SO4 Water Solutions
(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
(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
(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
(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 Micro-Pinch with the Boron-Containing Target
(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 Ultra-High Power Laser Beams
(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 ... -
Systems of Electronic Overcurrent Protection in Pulse Power Generator Operating on Plasma Load
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Schematic peculiarities of pulsed power source and modulator-shaper for working on high instability plasma load are discussed. In its construction should be provided for several levels of overcurrent protection. First of ...