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Phase Transition of YBO3
(2006)
Phosphors and Coatings
(2006)
Medizinprodukte für Senioren
(2006)
Verloren im Ballungsraum Intensivstation - Kommunikation zwischen Mensch und Maschine im Krankenhaus
(2006)
Ergonomics in Product Design
(2006)
Kooperation Theorie-Praxis
(2006)
Was will der Patient? Neues Bewertungsmodell zur Entgeltbemessung der "Wahlleistung Unterkunft"
(2006)
Papier ade? – Aktuelle Ergebnisse des IT-Reports Gesundheitswesen der Fachhochschule Osnabrück
(2006)
Association between cardiovascular risk factors and erectile dysfunction – a population-based study
(2006)
Current self-sustained oscillations in a Townsend discharge are studied analytically. The proposed method for solving simple equations is applicable even when the Townsend coefficient of electron reproduction g (the main factor governing the oscillations) cannot be determined theoretically. The coefficient g is related to the discharge current-voltage characteristic, which can be obtained experimentally or from numerical simulations. Self-oscillating solutions (limit cycles) are found under various conditions. The mechanisms governing the excitation and stabilization of the solutions obtained are interpreted. It is shown that the waveform of the undamped oscillations may change significantly (the current peaks are smoothed, and the oscillation period decreases) when a weak constant cathode current, which is presumably related to the emission caused by slowly diffusing metastable molecules, is included in the equations.
Self-sustained current oscillations in a Townsend discharge that is excited in a short plane discharge gap and is uniform along the electrode surface are investigated experimentally. A thin semiconductor plane serves as a discharge cathode, a ballast resistor, and an additional capacitor in the dc power supply circuit. The domain of existence and the frequency and waveform, of oscillations are determined over a wide pressure range.
Central or decentral? Tailored solutions for course evaluation as a tool for quality development
(2006)
Der Pariser Immobilienmarkt
(2006)
Beratungsdiagnostik
(2006)
Förderpläne - kein Problem
(2006)
Process Driven Value Assessment of ERP Solutions: An Overview on the Extended SAP Methodology
(2006)
Enterprise System Introduction with Controlling Enabled Configurative Information Models 2006
(2006)
Währungsumrechnung
(2006)
Latente Steuern
(2006)