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Full-Text Articles in Earth Sciences
Integrated Geophysical Methods To Characterize Subsidence In Butte, Montana, U.S.A., Kristen Prudhomme
Integrated Geophysical Methods To Characterize Subsidence In Butte, Montana, U.S.A., Kristen Prudhomme
Graduate Theses & Non-Theses
Geophysical investigations, designed to characterize unique subsidence features of unknown natural origin, provide imaging analysis of potential causes of subsidence. Recent subsidence in the alluvial plain in Butte, Montana is unrelated to historic mining in the area. This study aims to utilize a combined application of shallow electrical resistivity tomography (ERT), self-potential (SP), and frequency-domain electromagnetic (FDEM) methods in order to develop a better understanding of the particular set of hydrogeological and environmental conditions that contribute to this unique phenomena. Geophysical measurements provide lateral and vertical variations of electrical resistivity in the subsurface to a depth of 10 m while …
Investigation On Relationships Between Optical Properties And Cell Concentrations Of Microalgae, Zhaoming Zhou
Investigation On Relationships Between Optical Properties And Cell Concentrations Of Microalgae, Zhaoming Zhou
Graduate Theses & Non-Theses
Biofuel from microalgae is a very promising renewable energy resource. Growth of microalgae depends on ambient temperature, appropriate nutrients in water, and light condition for photosynthesis. As microalgae grow, the depth of light penetration decreases and the growing conditions at depth deteriorate. Monitoring of microalgae concentration during their growing phase is imperative to ensure efficiency in biomass production. Conventionally, cell concentration (number of cells per unit volume) of microalgae solution is estimated by taking images of samples under microscope and then counted and estimated using the Metallized Hemacytometer Hausser Bright-Linewe (MHHBL) method developed by Hausser Scientific. This method of measuring …