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 46 for “"Site Characterization"”.
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Site characterization using drone based photogrammetry
An emerging topic in geotechnical site characterization is using drones for rock mass characterization through Structure from Motion (SfM) photogrammetry. This study highlights a series of surveys utilizing a DJI Mavic II drone performed between July and August 2022 at an abandoned quarry in Clear …
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Soil and Site Characterization Using Electromagnetic Waves
Success in geotechnical analysis, design, and construction invariably requires that we have proper knowledge and understanding of (1) the strength, (2) the fluid flow properties, and (3) the stress-deformation behavior of the earth materials. These important engineering properties are primarily …
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Environmental site characterization via artificial neural network approach
… the potential use of ANNs for profiling and characterization of various environmental sites. A static ANN with back-propagation algorithm was used to model the environmental containment at a hypothetical data-rich contaminated site. The performance of the ANN profiling model was then compared …
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Site Characterization, Sustainability Evaluation and Life Cycle Emissions Assessment of Underground Coal Gasification
… A protocol for the selection of suitable sites for UCG projects is presented in this study. The site selection criteria are developed based on successes and failures of previous experiments and pilot studies. The criteria take into account the site characteristics, coal quality parameters, …
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Genomic Analysis of Human and Mouse Guanine-7-Methyltransferase with Active Site Characterization
… or 86.5% within the C-terminal domain. Active site characterization of mouse and human guanine-7-methyltransferase indicates a cysteine residue is important to proper enzyme activity. Enzyme activity was completely eliminated when N-ethylmaleimide (NEM) was added to the assay mixture. When the …
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Seismic site characterization using broadband and DAS ambient vibration measurements on Mt Etna, Italy
… to be valuable tools to gain insight into local site effects by ambient noise measurements. Here, the two methods are employed to assess the subsurface velocity structure at the Piano delle Concazze area on Mt Etna. Volcanic tremor records from an array of 26 broadband seismometers is processed …
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Seismic Site Characterization for the Deep Science and Engineering Laboratory (DUSEL) at Kimballton, Virginia
… facilities for long term study. To date, eight sites in North America have been proposed to host DUSEL. One of these sites, known as Kimballton, is located near Butt Mountain in Giles County in southwestern Virginia. Two seismic lines were acquired along the top of Butt Mountain in June of 2004 …
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Development of a Pre-Impact Environmental Site Characterization for the Bryan Mound, Texas Strategic Petroleum Reserve
This thesis presents a model for developing site-specific contingency plans to be used during spill response, remediation, and post-spill monitoring using the Strategic Petroleum Reserve's Bryan Mound site as a case study. Bird and vegetation observations provide baseline data for biological …
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Advancement of Using Portable Free Fall Penetrometers for Geotechnical Site Characterization of Energetic Sandy Nearshore Areas
… lightweight tools used for rapid and economic characterization of surficial subaqueous sediments. PFFPs vary in weight, shape and size with options for using add-on units. The different configurations enable deployments in various environments and water depths, including the nearshore zone …
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Seismic site characterization through joint modeling of complementary data functionals, with applications to Santo Domingo, Dominican Republic.
We present a strategy for determining seismic "site characterization" through joint modeling of horizontal to vertical spectral ratios (HVSR) and surface wave dispersion, performed via refraction microtremor (ReMi). Fitting of data functionals by synthetics is driven by global optimization. The …
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Applications of Roll-Along Electrical Resistivity Surveying in Conjunction with Other Geophysical Methods for Engineering and Environmental Site Characterization
… and gravity surveying in geophysical characterization of sites with a specific environmental or engineering problem. Three examples are presented where resistivity surveying provided vital constraints on acquisition and interpretation of other data in chaotic terrane. A commercially …
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The development of a remotely piloted vehicle (RPV) with real-time position measurement (RtPM) for hazardous waste site characterization
… of mobile robotics to hazardous waste site characterization, with the specific emphasis of employing the laser-based positioning measurement system developed by Spatial Positioning Systems, inc. (SPSi) for tracking a mobile robot and geographically tagging collected environmental data. …
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Seismic site characterization via joint modeling of horizontal-to-vertical spectral ratios and surface wave dispersion : developing and validating a geophysical tool for deciphering Quaternary stratigraphic architecture of the Monahans dune field, West Texas.
Quaternary deposition for the Monahans dune system is reflected in its stratigraphic architecture through various periods of dune accretion, stabilization, and erosion as well as buried clay, carbonate-rich soils, and playa lake deposits. The complex and discontinuous stratigraphy of Monahans is …
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Thermal considerations in the drift due to the emplacement of a horizontal high level nuclear waste container
The Yucca Mountain Site Characterization Project is investigating the feasibility of locating a high level radioactive nuclear waste repository at Yucca Mountain, Nevada. The design of waste containers to be used for the long term storage of the high level nuclear waste has progressed from the …
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Extraction, transport, and transformation of poly- and perfluoroalkyl substances in soils impacted by aqueous film-forming foam
… and transformation of PFASs at AFFF-impacted sites, with a particular focus on zwitterionic and cationic compounds. The first research objective was to develop a soil extraction method to enhance the recovery of all PFASs. The second research objective was to conduct a comprehensive site …
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Investigation of the Relationships Between Geotechnical Sediment Properties and Sediment Dynamics Using Geotechnical and Geophysical Field Measurements
… economic and useful tool for rapid geotechnical site characterization and uppermost sediment layer investigation. Acoustic methods have been used to assess seabed layering, scour evolution, and seabed morphology. However, there still exist major limitations in using these methods for …
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Tavis Mining Highway Stability Study - Methods Overview and Sensitivity Study
… studies at the mine. As well, a basic site characterization is provided highlighting the general geologic and hydrologic features of the Riverdale field. A compilation of the fundamental numerical techniques and theory behind a geotechnical study of this nature is provided, as well as a …
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Cost-Savings of Implementing Site-Specific Ground Motion Response Analysis in Design of Mississippi Embayment Bridges
<p>Deep dynamic site characterization and a site-specific ground motion response analysis (SSGMRA) were conducted for a bridge site in Monette, Arkansas. The SSGMRA indicated the design acceleration response spectrum determined using the American Association of State Highway and Transportation …
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Use of log normal transformation in environmental statistics
… contaminant concentrations from a Superfund site typically appears to be log normal and the concentration data is log-transformed so that the classical statistical methods based on normal distribution can be used. USEPA guidance documents on statistical evaluation of attainment of cleanup …
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