Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Gas discharges"”.
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Electrical, Optical and acoustic diagnostics of atmospheric pressure gas discharges
… investigations of atmospheric pressure gaseous discharges, operating in owing helium and helium with low concentrations (0.1 - 1 %) of gas admixtures, together with novel biomedical surface functionalisations. The initial body of this work focuses on comprehensive electrical and optical …
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An experimental study of the rotational distribution of N₂⁺B (v) states excited by electron beam impingement upon helium and nitrogen gas mixtures
… may be induced by various methods, including gas discharges, flowing afterglows and electron beams. The first negative nitrogen bands, N₂⁺(B²Σᵤ⁺- X²Σ<sub>g</sub>⁺), have been observed with relatively high intensity from small quantities of nitrogen in helium, also induced by such methods. …
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Characterization of Microwave Discharge Plasmas for Surface Processing
… in air at ƒ = 9.5 GHz. Low temperature MW discharges have been proven to posses attractive properties for plasma cleaning and etching of niobium surfaces of superconductive radio frequency (SRF) cavities. Plasma based surface modification technologies offer a promising alternative for …
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Barrierenentladung zum Abbau von Schadstoffen in motorischen Verbrennungsabgasen
… engines, plasmachemical methods for exhaust gas treatment are currently taken into consideration world-wide. Especially non-thermal atmospheric pressure gas discharges, such as barrier discharges, point towards possibilities of extending the limits of present catalytic methods. In barrier …
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Plasma-water interface reactions caused by positive corona and glow discharges
… and positive plasma produced by two types of gas discharges: corona discharge producing low energy drift positive ions and glow discharge producing energetic positive ions. A nine-needle electrode was developed to initiate d.c. corona discharge in nitrogen and oxygen. The experiments with a …
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Μελέτη της δημιουργίας και διάδοσης κύματος ιονισμού σε ηλεκτρικές εκκενώσεις που παράγουν ψυχρό πλάσμα: Εφαρμογή στην αλληλεπίδραση πλάσματος-επιφάνειας
Το αντικείμενο της παρούσας εργασίας είναι η θεωρητική μελέτη κυμάτων ιονισμού που παράγονται κατά τη δημιουργία ηλεκτρικών εκκενώσεων ψυχρού πλάσματος. Μια πολύ χαρακτηριστική περίπτωση κύματος ιονισμού είναι ο streamer. Προκειμένου να μελετήσουμε τη συμπεριφορά του, αναπτύξαμε ένα δισδιάστατο …