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.
Results
Showing 1 to 20 of 813 for “"resistivity"”.
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Borehold resistivity inversion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1997.
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Electrical resistivity changes in tuffs
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1979.
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Resistivity interpretation in geophysical prospecting
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology, 1959.
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Rock resistivity and geo-engineering parameters
Includes bibliographical references (pages 91-95).
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Laboratory Resistivity Measurements for Soil Characterization
<p>Field based electrical resistivity measurements, such as electrical resistivity tomography (ERT) and capacitively coupled resistivity (CCR), are geophysical methods that offer a non-destructive and rapid means to collect continuous data. As such, ERT and CCR are becoming increasingly popular …
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Deep structure resistivity measurements in Massachusetts
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1960.
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Quantitative analysis of earth resistivity data
Thesis. (Ph.D.) Massachusetts Institute of Technology. Dept. of Geology and Geophysics, 1956.
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Resistivity methods in prospecting for ground water
Digitized by Kansas Correctional Industries
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Wettability assessment using resistivity and NMR measurements
… of geophysical measurements such as electrical resistivity and Nuclear Magnetic Resonance (NMR). One advantage of geophysical measurements is their applicability for laboratory and in-situ borehole environments. Furthermore, they are quick, non-invasive measurements, and can provide …
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Accuracy and resolution in 2D resistivity inversion
Two-dimensional resistivity inversion employing regularization enforces a constraint of smoothness that minimizes error and avoids unrealistically complex solutions to the inverse problem. The insensitivity of surface array data to deeper targets typically presents an under-determined problem for …
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Investigating the Performance Of Electrical Resistivity Arrays
… to evaluate the performance of five electrical resistivity arrays, with the primary criteria being the reproduction of sharp model boundaries. 2D synthetic noise free data were calculated simulating a modern fixed spacing multi-electrode cable. Twelve 2D synthetic models, resembling a number of …
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Boundary element direct current resistivity model to aid in the interpretation of an underground DC resistivity multicomponent survey, A
Includes bibliographical references.
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Characterizing soil erosion potential using electrical resistivity imaging
… also influence soil in situ bulk electrical resistivity (ER) measurements. The objective of this study was to characterize soil erosion potential by correlating the in situ ER of soil with erodibility measured in the Kansas State University Erosion Function Apparatus (KSU-EFA). ER surveys …
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Investigation of clay-organic reactions using complex resistivity
Includes bibliographical references (pages 367-374).
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Kernel function in direct-current resistivity sounding, The
Includes bibliographical references.
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Resistivity in Contemporary Art Biennials: A Synchronic Analysis
… constitutes it through, what I call, biennial resistivity. Biennial resistivity utilises the qualifiers of the "biennial of resistance" to become a conceptual rather than geographical framework. As this dissertation demonstrates, biennial resistivity amplifies the post/decolonial resistive …
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Resistivity anomalies for ferromagnetic metals at Curie points
<p>We have investigated the resistivity anomalies of ferromagnetic metals at the Curie point using the itinerant model. The nature of these resistivity anomalies is related to phase transitions of second kind. Current theory describing these anomalies is based on the localized model of the magnetic …
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Optimal experimental design applied to DC resistivity problems
… which is demonstrated by application to DC resistivity problems. The primary goal is to minimize inversion model errors and uncertainties, where the inversion is approached via nonlinear least squares with L1 smoothness constraints. An equally important goal is to find ways to expedite …
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Liner characterisation and leak detection using electrical resistivity techniques
The resistivity of soil ranges from 7-15 Ωm for Leachate #1 to 20-50 Ωm for Leachate #2. The resistivity decreases with an increase in the proximity to the leak point. Furthermore, the resistivity values obtained with water were nearly 10 times the values observed with landfill leachate as the …
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Dissolution-enlarged fractures imaging using electrical resistivity tomography (ERT)
… terms of physical properties, such as electrical resistivity.</p><p>Electrical resistivity tomography (ERT) was used as the primary geophysical tool to image the subsurface in a karst terrain in Greene County, Missouri. Pattern, orientation and density of the joint sets were interpreted from ERT …
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