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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 558 for “"Rare Earth"”.
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Detection of rare earth elements and rare earth oxides with hyperspectral spectroscopy
The continuously increasing demand for rare earth elements in technical components of modern technologies, brings the detection of new deposits closer into the focus of global exploration. One promising method to globally map important deposits might be remote sensing, since it has been used for a …
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Thermoelectric transport in rare-earth compounds
… on the thermoelectric transport properties of rare-earth compounds containing Ce, Eu, and Yb. These systems have been investigated either to study fundamental problems or to evaluate their potential for thermoelectric applications.
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Magnetism in crystalline rare-earth compounds
… largely due to the complex behaviour of rare-earth ions. The technique of choice is diffraction; shown to pro- vide the most lucid of results in this field of research. Neutron powder diffraction, a well established tool for determining magnetic structures, has been employed in order to …
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Photoluminescence Properties of Rare Earth Niobium Containing Oxides and Flux Synthesis of Rare Earth Transition Metal Containing Oxides
… My works have been focused on the preparation of rare-earth and transition metal containing oxides using hydroxide flux route, which has resulted in the synthesis of several oxides, namely Dy3TaO7, LaCoO3 and LaFeO3.</p>
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Novel rare-earth-doped planar waveguide lasers
… This thesis reports a series of studies of rare-earth-doped planar waveguide lasers, exploiting and extending the diverse range of possibilities that can be applied to planar technology. The areas investigated include the characterisation of guided-wave lasers produced by novel fabrication …
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X-ray dichroism of rare earth materials
Contains fulltext : mmubn000001_086249649.pdf (Publisher’s version ) (Open Access)
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Investigation of Rare-Earth Doped Barium Titanate
Made available in DSpace on 2014-12-05T22:57:02Z (GMT). No. of bitstreams: 1 5904576.pdf: 2919994 bytes, checksum: 7cdf26d7ea08f532595247cdf679a0ef (MD5) Previous issue date: 1959
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Raman scattering in heavy rare earth metals
… energy agrees with and corroborates earlier infrared resonance measurements in bulk Dy. The observation of the optical spin wave in ferromagnetic Dy is forbidden by Raman selection rules. The optical spin wave in spiral phase Dy was not observed. The light scattering observation of spin waves in …
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Rare earth fractionation in Hawaiian volcanic rocks.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. Ph.D.
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Rare-earth distributions in the marine environment.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1966.
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The marine geochemistry of the rare earth elements
… developed for the determination of 12 of the 14 Rare Earth Elements (REE) in seawater. Initial extractions of the REE by chelating ion exchange chromatography is followed by cation exchange for removal of co-extracted U and remaining traces of major ions. Finally traces of U are removed by anion …
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Temperature measurement using rare earth doped fibre fluorescence
… intensity ratio was studied using six different rare earth ions, doped into a variety of glasses and crystals to investigate the feasibility of developing an accurate, low cost temperature sensor.
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Coherent Processes in Rare-Earth-Ion-Doped Solids
… which have been experimentally implemented using rare-earth-ion-doped crystals. The rare-earths are a class of elements that have in common, an atomic structure that allows for very long lifetimes as well as coherence times, both on optical transitions and on spin transitions. These ions can be …
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Photophysics of Rare Earth Chelates Under High Pressure
… energies, and decay times of several tris rare earth betadiketonates has been investigated in crystalline and plastic media over the pressure range of 0-120 kilobars. Temperature studies were also conducted from 110 to 300 K. The optical properties of Eu dibenzoylmethide and Eu …
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Low-Temperature Properties of Aluminum - Rare-Earth Alloys
Made available in DSpace on 2015-05-12T22:38:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7309868.PDF: 3473362 bytes, checksum: ecbebcca08d45ac4b2a9a079ab4ffacc (MD5) Previous issue date: 1972
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