Global ETD Search
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 271 for “"volcano"”.
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DATA MINING TECHNIQUES ON VOLCANO MONITORING
… where data mining techniques are applied for volcano data analysis and surveillance purpose. In particular, an application for clustering infrasound signals and another to index an thermal image database are presented.
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Integrated geophysical studies at Masaya volcano, Nicaragua
… for the lasting, cyclic activity at Masaya volcano can lead to a better understanding of persistently degassing volcanoes. This study is greatly enhanced by the integration of dynamic micro-gravity, deformation and gas flux measurements. The acquisition of extended temporal and spatial …
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Mud Volcano Systems: Structure, Evolution and Processes
Mud volcano systems erupt sediment and fluid onto the Earth’s surface producing edifices up to 25 km3 in volume however, little is known about how such volumes are transported through the Earth’s crust. This thesis investigates whether transport is through mud-dyke-sill complexes, or is diapiric. …
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Geothermal system at Kilauea volcano, Hawaii, The
Includes bibliographical references (pages 83-86).
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First multi-year muography of Etna Volcano
… first multi-year muography experiment at Etna Volcano is presented. The Muography of Etna Volcano (MEV) project started in 2016 and the candidate took part in all activities since the beginning, as will be explained in the following. The collaboration involves physicists and engineers belonging …
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Geochemistry of Eyjafjöll, a volcano in Southern Iceland.
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Science.
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Towards Improved Volcano Monitoring via Automatic Classification of Continuous Tremor
… means to detect previously unknown patterns in volcano-seismic signals. Some of these patterns may be precursors to eruption, or change of volcanic activity state. This is particularly interesting for ‘wet’ volcanic systems such as Whakaari (White Island), which regularly produce …
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Malcolm Lowry's design-governing postures : a rhetorical analysis of Under the volcano
… reviews and critical studies done on Under the Volcano, the critical studies being organized into source, theme and technique analyses, respectively,Chapter two, "Rhetorical Analysis Defined," considers the critical theories of Edward Corbett, Mark Schorer and Wayne Booth to adumbrate the notion …
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Petrological insights into pre- and syn-eruptive degassing at Ambrym volcano, Vanuatu
… conditions and degassing processes at Ambrym volcano, a basaltic island arc volcano recently identified as a prodigious emitter of volcanic gases. Typical activity at this volcano entails heavy degassing from quasipermanent lava lakes, with Strombolian activity of fluctuating intensity. This …
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Elastic Propagation in random media: applications to the imaging of volcano structures
High-frequency seismograms contain features that reflect the random inhomogeneities of the earth. In this work I use an imaging method to locate the high contrast small- scale heterogeneity respect to the background earth medium. This method was first introduced by Nishigami (1991) and than applied …
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Petrogenesis of lavas from Volcano Azufre, Northern Chile: evidence for crustal input
… is combined with that of previously studied volcanoes of the CVZ, and specifically the Altiplano-Puna Volcanic Complex (APVC) in northern Chile, to further understand such processes that have occurred in this region. Factors that need to be taken into consideration when examining volcanoes of …
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Pre-eruptive conditions beneath Medicine Lake Volcano, California, during the Pleistocene epoch
… the preeruptive conditions beneath Medicine Lake Volcano (MLV) during the Pleistocene epoch. Prior to this investigation, the Pleistocene lavas of MLV had not been extensively studied because detailed time relations among them were not known. Recent work by Donnelly-Nolan has provided a time …
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Thermodynamic stability and activity volcano for perovskite-based oxide as OER catalyst
… Plotting of activity vs. a descriptor gives a volcano curve. However, little is known about the thermodynamic stability and the catalytic activity of perovskite surface reconstructions. Reconstructions such as defect, adsorbate, and steps are widely detected in experiments. They are caused by …
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