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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 111 to 120 of 10382 (0.033 seconds)| 111 |
Magnetic interatomic coupling in ironSmall, L. M. January 1984 (has links)
No description available.
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| 112 |
Spin-dependent transport in artificial structuresBlundell, Stephen John January 1993 (has links)
No description available.
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| 113 |
New techniques in NMR spectroscopyStonehouse, Jonathan January 1995 (has links)
No description available.
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| 114 |
Chemical remanent magnetisation and phase transformations in iron oxide mineralsGoss, K. J. January 1987 (has links)
Chemical remanent magnetisation (CRM) occurs as the result of the acquisition of remanence by a rock through chemical change or mineral growth. Despite the important role CRM plays in rock magnetic and palaeomagnetic processes (as a mechanism by which rocks acquire a primary remanence or as a feature of post- depositional alteration) there are few studies of this process to date. This dissertation investigates the effect of phase and chemical change on the magnetic and remanence carrying properties of some geologically important iron oxide minerals. The mineral systems studied are: the goethite-hematite, the magnetite-maghemile-hematite and the lepidocrocite-maghemite-hematite systems. The mineralogy of these systems is studied using transmision electron microscopy, thermogravimetry and x-ray diffraction methods. A transformation mechanism for the dehydration reaction of goethite is presented. The cation distribution of maghemite and its intrinsic magnetic properties are investigated. The process of CRM is simulated in the systems goethite-hematite and lepidocrocite-maghemite-hematite and the results correlated with theoretical predictions of CRM intensity, blocking volume and their dependence on mineral growth rate. A self-reversal in the maghemite-hematite system is reproduced. The low temperature oxidation of magnetite to maghemite and hematite (for example in basalts) and the low temperature dehydration reactions of goethite and lepidocrocite (as occur, for example, in sediments) are important mineral transformations. The results and conclusions of this study are extrapolated to geological environments and time scales, in particular with reference to red bed palaeomagnetism.
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| 115 |
Selective pulses in NMRRourke, David E. January 1992 (has links)
No description available.
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| 116 |
Magnetic investigations of some low dimensional solidsMeakin, J. I. January 1986 (has links)
No description available.
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| 117 |
Solid-State NMR studies of inorganic materialsBarras, Jamie January 1994 (has links)
No description available.
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| 118 |
MR indicators of structure and function in the rat brain and kidney in vivoBurdett, Newman Grenville January 1995 (has links)
No description available.
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| 119 |
The characterisation of colloids and macromolecules by linear magnetic birefringenceWilson, Stephen Ronald January 1997 (has links)
No description available.
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| 120 |
Computer aided modelling of the digital magnetic record and replay processesAstbury, David Alan January 1989 (has links)
No description available.
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