Prohlížení Acta Polytechnica. 2013, vol. 53, no. 2 dle názvu
Zobrazují se záznamy 18-37 z 39
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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 ... -
The Construction of the Fast Resistive Bolometer for a SXR Measurement on the GIT-12 Facility
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)A lot of kinds of instruments are used for the SXR measurement at pulsed power facilities, but most of them are difficult to calibrate absolutely. For the determination of the energy of SXR radiated by the discharge on ... -
The Formation of a Power Multi-Pulse Extreme Ultraviolet Radiation in the Pulse Plasma Diode of Low Pressure
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)In this paper results are presented on experimental studies of the temporal characteristics of spike extreme ultraviolet (EUV) radiation in the spectral range of 12.2 ÷ 15.8 nm from the anode region of high-current (I = ... -
The Influence of Nitrogen in Ar+N2 Mixture on Parameters of High-Temperature Device with Electric Arc
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)The paper presents the results of numerous experiments carried out on a high temperature device consisting of an arc heater with intensively blasted electric arc and reaction chambers connected to its output. The influence ... -
The Process of Plasma Chemical Photoresist Film Ashing from the Surface of Silicon Wafers
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)At present, the research for finding new technical methods of treating materials with plasma, including the development of energy and resource saving technologies for microelectronic manufacturing, is particularly actual.In ... -
The Research on Atmospheric Pressure Water Vapour Plasma Generation and Application for the Destruction of Wastes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)In the Lithuanian Energy Institute an experimental atmospheric pressure Ar/water vapour plasma torch has been designed and tested. The power of plasma torch was estimated 40 ÷ 69 kW, the mean temperature of plasma jet at ... -
Thomson Parabola Spectrometer for Energetic Ions Emitted from Sub-ns Laser Generated Plasmas
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)Laser-generated plasmas were obtained in high vacuum by irradiating micrometric thin films (Au, Au/Mylar, Mylar) with the Asterix laser at the PALS Research Infrastructure in Prague. Irradiations at the fundamental wavelength, ...