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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

Simulation of plasma arc cutting /

Hendricks, Brian Reginald. January 1900 (has links)
Thesis (MTech (Mechanical Engineering))--Peninsula Technikon, 1999. / Word processed copy. Summary in English. Includes bibliographical references (leaves 66-68). Also available online.
182

Theoretical studies of the VASIMR plasma propulsion concept

Arefiev, Alexey Vladimirovich 28 August 2008 (has links)
Not available / text
183

The crossfield current-driven ion acoustic instability in a two-ion plasma.

Govender, Jagathesan. 29 November 2013 (has links)
The behaviour of the crossfield current-driven ion acoustic instability in a plasma containing two ion species is theoretically examined. In our model the electrons are assumed to be hot and the ions cold, i.e. Tₑ »Tᵢ (~ 0), where both ion species are given the same temperature. The length and time scales are such that the electrons are magnetized and the ions unmagnetized. The linearised Vlasov equation is used to set up a dispersion relation for electrostatic waves for Maxwellian equilibrium velocity distributions of the electrons and ions. For the ion acoustic wave, a study is made of the dependence of the critical electron drift velocity (Vͨₒ) required to excite an instability on several parameters. The parameters include light ion fraction, heavy to light ion mass ratio, magnetic field strength and the propagation angle. In general the maximum value of Vͨₒ is found to be smaller than that for an unmagnetized plasma. Approximate analytic solutions of the dispersion relation are used to make comparisons with solutions from the full dispersion relation. The effect of drifts due to inhomogeneities in external magnetic field, perpendicular electron temperature and electron density on the growth rate of the ion acoustic instability are investigated in the ion rest frame. Finally, in a reference frame in which the electrons are stationary, both ion species are given external drifts. The effects of the ion drift velocities (both equal and unequal), electron to ion temperature ratio, light ion fraction, and heavy to light ion mass ratio on the growth rate of the ion acoustic instability are then studied. / Thesis (M.Sc.)-University of Durban-Westville, 1987.
184

Plasma torch interaction with a melting substrate

Hill, S. D. 08 1900 (has links)
No description available.
185

An experimental study of ion behavior in the advanced toroidal facility

Wade, Mickey Ray 12 1900 (has links)
No description available.
186

Liquid and solid sample introduction into the inductively coupled plasma by direct sample insertion

Sing, Robert L. A. January 1986 (has links)
No description available.
187

Currrent disruptions in a magnetised plasma stream

Andersson, Hans January 1997 (has links)
No description available.
188

Investigation of plasma detachment from a magnetic nozzle

Chancery, William. January 2007 (has links) (PDF)
Thesis (M.S.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references (ℓ. 42-43)
189

Development of an extended magnetohydrodynamic model for anisotropic plasmas.

Miura, Ken. January 2004 (has links)
Thesis (M.A. Sc.)--University of Toronto, 2004. / Adviser: C.P.T. Groth.
190

Measurement of short-wavelength electrostatic fluctuations in a helicon plasma source

Hardin, Robert Aaron. January 1900 (has links)
Thesis (Ph. D.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains vi, 206 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.

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