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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 8 of 8 for “"lead isotopes"”.
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Critical Field Measurements on Superconducting Lead Isotopes
Made available in DSpace on 2015-05-12T17:12:13Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 5900496.PDF: 3322884 bytes, checksum: b7acd5bdfe709a0feef86cb12bcf2c02 (MD5) Previous issue date: 1958
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Lead isotopes as a palaeodietary tracer in southwestern South Africa
This thesis evaluates the utility of lead (Pb) isotopes, in combination with strontium (Sr) isotopes, as a geochemical tracer for studying the palaeodiets and palaeo-landscape usage in southwestern South Africa. Isotopes of light elements, carbon (C), nitrogen (N), oxygen (O), and sulphur (S), are …
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Determining the concentration and source of lead in chocolate using lead isotopes
… the world were analyzed to determine their lead concentrations and the isotopic composition of the lead. The lead isotope ratios were compared with published data from aerosols and volcanic rocks nearest to the cocoa growing regions. Samples from different countries and manufacturers were …
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Resonant photon scattering from isotopes of lead and bismuth
… Photons scattered from enriched targets of the lead isotopes and from bismuth were observed with a Ge(Li) detector. Energies and values of gr02 / Ir were determined from measurements at 127 degrees for many levels not o previously observed in photon scattering experiments. Spins of levels in …
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Advancements in Isotopic Geolocation Tools for Insect Migration Research
… Here, I develop and apply metals and metal isotopes, specifically strontium isotope ratios (⁸⁷Sr/⁸⁶Sr), to increase the spatial precision of isotope geolocation and demonstrate how isotopic geolocation tools can advance our understanding of insect migration at the population level. In the …
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Human provenancing - combined isotopic and genetic profiling of limited bone and teeth material of ancient human remains
… In recent years increasingly strontium and lead isotopes analysis have proved particularly useful as tracers for individual residency and migration. The re-occurring problem of limited sample material in archaeological and forensic investigations led to the second objective to investigate …
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Elastic photon scattering in 208Pb and 206Pb
Average elastic photon scattering cross sections were measured for 208Pb and 206Pb between 9.5 MeV and 12.0 MeV. The results indicate that there is a significant amount of fine structure in the photoabsorption cross section in 208pb in this energy region, but that 206pb has little or no fine …