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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 21 to 30 of 7387 (0.037 seconds)Spelling suggestions: "subject:"then impact"" "subject:"them impact""
| 21 |
Use of 3-D visualisation tools in the EIA process : is it effective in enhancing public involvement? /Lung, Hon-kei, William. January 2005 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2005.
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| 22 |
Structural arrangements and geometric effects on plastic deformations in collisionsShu, Dongwei January 1990 (has links)
No description available.
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| 23 |
Noise emission from rock impactsDoyle, A. J. January 1984 (has links)
No description available.
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| 24 |
Impact and fracture properties of infra-red and optical transmitting materialsHand, R. J. January 1987 (has links)
The liquid impact properties of a range of infra-red and optical transmitting materials have been investigated using the liquid jet impact technique. In particular the effects of temperature and pre-existing stress fields on the liquid impact performance of certain materials have been examined. Consideration of these aspects of liquid impact has been supplemented by measurements of related fracture properties. The correlation between liquid jet impact and liquid drop impact has been re-examined for normal impact by comparing impacts on perspex. This correlation has been extended to consider angled impact. Components that are subjected to liquid impact may simultaneously be subjected to elevated temperatures. A system has been developed to allow experimental investigation of the liquid impact performance of materials at elevated temperatures. Preliminary results were obtained on a polymer (PEEK). The amount of damage resulting from liquid impact increased with temperature. Subsequently two brittle materials (glass and zinc sulphide) were investigated. Thermal shock has been shown to be the dominant failure mechanism for these materials at temperatures of 300<SUP>o</SUP>C and greater. Pre-existing stresses in a material can affect not only its static but also its dynamic loading response. The liquid impact performance and some associated fracture properties of toughened glass systems have been investigated. Chemically and thermally toughened systems were compared. There is a small increase in the threshold velocity for the toughened glasses considered compared to soda-lime glass. The toughening stresses distributions led to differences in the behaviour under single and multiple impact. A novel computer simulation of liquid impact onto pre-stressed substrates has been developed. It is based on the interaction of a model Rayleigh surface wave with a flaw distribution. Good agreement with experiment was obtained for a thermal toughening stress distribution.
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| 25 |
Understanding the Impact of Disasters on the Lives of Children and YouthBorden, Lynne 10 1900 (has links)
3 pp. / Promoting the health and well-being of families during difficult times.
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| 26 |
Planning and control for environmental policy : a study in PortugalPinho, Paulo Manuel Neto da Costa January 1985 (has links)
No description available.
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| 27 |
The influence of tempering on the impact behaviour of steel cooled at different rates after austenisingKohlahi-Aval, J. January 1988 (has links)
No description available.
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| 28 |
Vibro-impact dynamics of engineering systemsWagg, David James January 1999 (has links)
No description available.
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| 29 |
Metal complexation capacity measurements in natural waters and their microbiological significancePlummer, D. H. January 1986 (has links)
No description available.
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| 30 |
Psychosocial considerations in the surgical management of early breast cancer patientsMorris, J. M. January 1987 (has links)
No description available.
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