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 11 of 11 for “"U.S. Department of Energy (DOE)"”.
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Evaluation of key factors in transportation risk analysis
Pursuant to the enactment of federal legislation, the U.S. Department of Energy (DOE) is presently evaluating Yucca Mountain as a candidate site for a repository to store spent nuclear fuel (SNF) and high-level radioactive waste (HLRW). Risk analyses could be used to support transportation …
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The effects of bicarbonate and mineral surfaces on uranium immobilization under anaerobic conditions
… four decades, from 1940 through 1980, the U.S. Department of Energy (DoE) extensively mined and processed uranium at various sites. As a result, widespread uranium contamination exists in subsurface sediments and aquifers. In subsurface environments, uranium primarily exists as U(VI) or U(IV), …
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The conversion of wind power to electrical power
… that"unit sales during 1983 would be twice those of the prior 10 years combined." Most of the activity has been in the development of windfarms in the western states and Hawaii. The boom is largely due to (1) tax breaks given to alternative energy producers and (2) the Public Utilities Regulatory …
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Hydrogen storage in porous crystalline materials: insights on the role of interaction strength from simulation and machine learning
… to its carbon-free nature and relatively high energy content by mass. However, a major hurdle for its widespread adoption as a vehicular fuel is its low density at ambient conditions, posing a challenge for onboard storage. Toward fully realizing a cost-effective, hydrogen-powered fuel cell …
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An Assessment of Direct Mortality to Avifauna from Wind Energy Facilities in North Dakota and South Dakota
<p>Renewable energy sources have the potential to provide enough energy to exceed current energy demands. In the U. S., 9% of energy consumption in 2011 was derived from renewable sources. Currently, the most technically developed and cost-effective source is land-based wind energy and the U.S. …
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Model and Control System Development for a Plug-In Parallel Hybrid Electric Vehicle
The Hybrid Electric Vehicle Team (HEVT) of Virginia Tech is participating in the EcoCAR 3 Advanced Vehicle Technology Competition series organized by Argonne National Labs (ANL), and sponsored by General Motors (GM) and the U.S. Department of Energy (DOE). EcoCAR 3 is a 4-year collegiate …
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Modeling contaminant transport and fate and subsequent impacts on ecosystems
Assessing risks associated with the release of metals into the environment and managing remedial activities requires simulation tools that depict speciation and risk with accurate mechanistic models and well-defined transport parameters. Such tools need to address the following processes: (1) …
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Polar intermetallic compounds of the silicon and arsenic family elements and their ternary hydrides and fluorides
<p>An investigation has been made on the effects of hydrogen and fluoride in the solid state chemistry of alkaline-earth and divalent rare-earth metal pnictide (Pn) and tetrelide (Tt) phases A5(Pn,Tt,)3Zx, where A = Ca, Sr, Ba, Sm, Eu, Yb; Pn = As, Sb, Bi; Tt = Si, Ge, Sn, Pb and Z = H, F. Several …
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Development of a Series Parallel Energy Management Strategy for Charge Sustaining PHEV Operation
The Hybrid Electric Vehicle Team of Virginia Tech (HEVT) is participating in the 2012-2014 EcoCAR 2: Plugging in to the Future Advanced Vehicle Technology Competition series organized by Argonne National Lab (ANL), and sponsored by General Motors Corporation (GM) and the U.S. Department of Energy …
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Design, Optimization, and Integration of a SiC-Based Traction Inverter with Enhanced Current Sharing for Paralleled Discrete Devices
… and high density. According to the U.S. Department of Energy (DOE) roadmap, the 2025 targets for traction inverters include achieving a power density of 100 kW/L, reducing inverter cost to $2.7/kW, reaching efficiency of 98 %, and supporting voltage of 800 V. To meet these aggressive …
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X-ray microscope performance enhancement through control architecture change
The goal of this thesis is to apply control algorithms to improve the performance of nanopositioning devices used on the beamline in Advanced Photon Source (APS) at Argonne National Laboratory (ANL). A prototype device, better known as the Early User Instrument (EUI) was the subject of this work. …