- About
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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.
Search results
Showing 361 to 370 of 12301 (0.02 seconds)| 361 |
The concept, design and experimental evaluation of an "acoustic sub-seabed interrogator"Guigne, Jacques Yves January 1986 (has links)
No description available.
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| 362 |
LMTO studies of transition metals : non-collinear magnetism and axial pressuresCrockford, Derek John January 1990 (has links)
No description available.
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| 363 |
Magneto-elastic processes in polycrystalline ferromagnetsMaylin, M. G. January 1994 (has links)
No description available.
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| 364 |
Technologies for photonic integrationGibbon, Mark January 1995 (has links)
No description available.
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| 365 |
Novel combinatorial approaches to protein binding inhibitorsSanders, Ian January 1998 (has links)
No description available.
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| 366 |
Simulation of organic light emitting devicesBlades, Christopher David James January 2000 (has links)
No description available.
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| 367 |
An ultrasonic study of refractory hard ceramicsDodd, Simon Peter January 2002 (has links)
No description available.
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| 368 |
Hollow core optical fibre based gas discharge laser systemsLove, Adrian January 2018 (has links)
The humble electrically pumped gas laser has undergone little development in its fifty year life span due to the lack of an effective method to confine light within a hollow waveguide of any appreciable length in which an electrical discharge could be contained. New technologies in the field of anti-resonant guiding hollow core fibres present an opportunity to re-invent the gas laser. A recent breakthrough in the field demonstrated that DC pumped glow discharges of a helium and xenon gas mixture could not only be sustained in such a fibre, but also exhibited signs of gain on a number of mid-IR neutral xenon laser lines. The research presented in this thesis is a continuation of that project. The system was redesigned to incorporate two mirrors so that a cavity could be constructed. The previously hinted at gain on the 3:51 μm xenon line was confirmed through a series of CW measurements of the cavity, as was a polarisation of the laser due to a polarisation dependent output coupler. Further observation of the discharges revealed that they were of a pulsed nature, and that the mid-IR laser light was present in the discharge afterglow. A response to the cavity mirrors was observed in this afterglow pulse on the 3:11 and 3:36 μm xenon lines in addition to the 3:51 μm line previously seen. Through fast detection a modulation of the output power due to cavity mode beating effects was detected. The high gain and narrow bandwidth of the xenon laser lines resulted in a frequency pulling effect, and the mode separation in the 'hot' laser cavity was measured to be lower than in the 'cold' cavity. It was observed through pressure optimisation experiments in helium-xenon that higher output powers could be achieved by using lower partial pressures of xenon. This was exploited with neon-xenon mixtures, where the lower ionisation potential of neon allowed a lower pressure of xenon. Discharges were also achieved in helium-neon and argon gas mixtures.
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| 369 |
Experimental and theoretical determination of nonlinear pressure fields in biological fluidsVerma, Prashant K. January 1995 (has links)
No description available.
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| 370 |
Dielectric and ultrasonic studies of polyethylene plaques and cable insulationFanggao, Chang January 1996 (has links)
No description available.
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