- 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 381 to 390 of 3480 (0.026 seconds)| 381 |
Novel optical methods for flowmetering and electric current sensingChu, Beatrice C. B. January 1992 (has links)
No description available.
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| 382 |
On-line detection of fault conditions in controlled industrial processesGomm, James Barry January 1991 (has links)
No description available.
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| 383 |
Pulse width modulation video for optical fibre transmissionBerry, M. C. January 1983 (has links)
No description available.
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| 384 |
A comparison between the Weibull and lognormal models used to analyse reliability dataLiu, Chi-Chao January 1997 (has links)
No description available.
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| 385 |
The political economy of technology development : a case study of Korea's electronics industryCyhn, Jin W. January 2001 (has links)
No description available.
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| 386 |
Multiprocessor control and data analysis for a coherent auroral radarFoster, David George January 1982 (has links)
No description available.
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| 387 |
Strain analysis using ESPI applied to fracture mechanicsMoore, Andrew J. January 1993 (has links)
Electronic speckle pattern interferometry (ESPI) has become an established technique for surface deformation studies. However, difficulties remain in the practical use of ESPI, primarily because results require skilled and time-consuming interpretation. The work reported here has enabled automated acquisition and processing of ESPI displacement data. Further processing has enabled the components of surface strain and stress to be, determined automatically. Such measurements are of great importance for experimental fracture mechanics studies, a quantitative approach to measuring the severity of defects in a loaded structure. Having established the importance of experimental optical methods in fracture mechanics, and the particular advantages of ESPI, a study has been undertaken to determine whether ESPI can be used for quantitative fracture mechanics measurements. Automated analysis for in-plane displacement measurements with ESPI was achieved by the phase-stepping technique. Numerical differentiation of the displacement data allowed surface strain to be evaluated. The accuracy of such measurements was investigated, particularly with regard to speckle noise inherent in the data. Speckle noise limits the accuracy of all measurements, and a practical threshold for displacement and strain of ±0.03~m and ±6~strain was found. From these considerations, two new phase-stepping algorithms have been proposed for ESPI. The first offers improved accuracy by the way it eliminates speckle noise; the second has allowed phase-stepping of ESPI addition fringes for the first time. · In the past ESPI has been restricted to uniaxial measurements. A new interferometer design enabled displacement to be measured along two axes simultaneously: extension to three-dimensional sensitivity is discussed. Automated displacement and strain measurements, recorded with the dual-sensitivity interferometer, are presented for a cantilever loaded at its free end.
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| 388 |
Modelling and analysis of noise in advanced avalanche photodetectorsBurns, Mark James January 1993 (has links)
No description available.
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| 389 |
Design and realisation strategies for very high bit-rate optical receiversLane, Philip Mark January 1992 (has links)
No description available.
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| 390 |
Plankton population density measurement by acousto-electronic testingOrgill, Christopher H. January 1990 (has links)
No description available.
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