Search for dissertations about: "Anomalous resistivity"
Showing result 1 - 5 of 11 swedish dissertations containing the words Anomalous resistivity.
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1. Resistivity investigation and monitoring for detection of internal erosion and anomalous seepage in embankment dams
Abstract : Methods for monitoring seepage and detecting internal erosion are essential for the safety evaluation of embankment dams. Internal erosion is one of the major reasons for embankment dam failures, and there are several tenths of thousands of large embankment dams in the world. READ MORE
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2. Plasma cloud penetration across magnetic boundaries
Abstract : .... READ MORE
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3. Cluster Observations and Theoretical Explanations of Broadband Waves in the Auroral Region
Abstract : Broadband extremely low-frequency wave emissions below the ion plasma frequency have been observed by a number of spacecraft and rockets on auroral field lines. The importance of these broadband emissions for transverse ion heating and electron acceleration in the auroral regions is now reasonably well established. READ MORE
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4. Monitoring of tailings dams with geophysical methods
Abstract : Several dam failure accidents have occurred during the last years and mine tailings dam failures are occurring at relatively high rates. Studies of past earth dam failures show embankment dam problems and failures are often related to internal erosion in one way or another. READ MORE
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5. Three-dimensional forward modelling and inversion of controlled-source electromagnetic data using the edge-based finite-element method
Abstract : Electromagnetic geophysical methods are applied to investigate anomalous subsurface structures exhibiting contrasts in electrical resistivity, as for example in mineral exploration or geothermal areas. When evaluating electromagnetic data, one big challenge is to account for full three-dimensional measurement setups and subsurface scenarios. READ MORE