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 22 for “"fuel reduction"”.
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Fuel Reduction in Remote Microgrids Using Photovoltaics, Battery and Multiple Generators
… known as microgrids. Due to depleting fossil fuel reserves and environmental concerns, a large number of microgrids are adopting renewable energy sources like photovoltaics to provide power generation. However, the fluctuating nature of photovoltaic output makes them unreliable. To solve this …
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Planning with Fire: Exploring the Barriers & Opportunities Surrounding Wildfire Fuel Reduction at the Wildland Urban Interface
… the Pacific Northwest, our research explores fuel reduction as a holistic wildfire mitigation strategy. Using the Methow Valley in Washington State as a case study, we examine the barriers and opportunities surrounding fuel reduction practices at the wildland urban interface (WUI). Development …
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Long-term Effects of Prescribed Fire and Fire Surrogate Treatments on Southern Appalachian Mountain Forest Soil Chemistry
… Study was established in 2000 to determine how fuel reduction and ecosystem restoration techniques might affect ecosystem properties and processes across the United States. Soil chemistry and the southern Appalachian Mountains were an ecosystem property and ecoregion of interest, respectively. …
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Full efficiency benefits and implementation considerations for cruise altitude and speed optimization in the National Airspace system
This study examines the potential fuel burn benefits of altitude and speed optimization in the cruise phase of flight for domestic airlines in the United States. Airlines can achieve cost reductions and reduce environmental impact by making small modifications to the cruise phase operating …
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Wildland Fire in the Central Appalachian Mountains: Impacts on Above- and Belowground Resources
… management goals. These goals include hazardous fuel reduction, wildlife habitat restoration and management, and control of less desired vegetation. Research is needed to better understand the effects of wildland fire on forest ecosystems. In this study, we addressed wildland fire's effects on …
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Reducing future bushfire risk : optimal strategies for fuel load reduction
… and Life Cycle Costing (LCC) to evaluate three fuel load reduction strategies: Fuel Reduction Burning (FRB), Mechanical Fuel Load Reduction (MFLR), and their combination. The DSS quantifies environmental impacts (e.g., greenhouse gas and PM2.5 emissions), economic costs, social cost, and …
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Standing closest to the flame: Community wildfire planning and the Healthy Forest Act
… wildfire protection plans (CWPPs) to guide fuel reduction and wildfire mitigation efforts on both federal and nonfederal lands. This research examines U.S. Forest Service (USFS) and community collaboration in the development of CWPPs through a case study analysis of four communities in two …
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Seasonal responses of carbon, nitrogen, and phosphorus cycling to woodland reduction and different organic matter additions in the semiarid Great Basin
… susceptible to disturbance. We used two common fuel reduction treatments - mastication and cut-and-lop - in piñon-juniper encroached sagebrush ecosystems in the semiarid Great Basin to quantify how organic matter additions affect pools and fluxes of C, N, and P. We found that organic matter …
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Trust and human performance in automated formation flight station-keeping
… flight for precise station-keeping and resultant fuel reduction, shifting control authority from humans to machines. Accordingly, the human is not directly in the control loop, but just supervises whether or not the automation works as intended. One critical problem in AFF supervisory control is …
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Fire and Fuels: Vegetation Change Over Time in the Zuni Mountains, New Mexico
… suppression practices have allowed a buildup of fuels and caused a change in the fire-adapted ponderosa pine ecosystem such that the new ecosystem now incorporates many fire-intolerant species. As a result, the low-severity fires that the ecosystem once depended on to regenerate the forest are …
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Prescribed Fire Perspectives of African American Landowners in Alabama, Florida, and Georgia
… land management objectives, such as hazardous fuel reduction, undesired vegetation control, timber stand improvement, pest and disease reduction, and aesthetics. These individuals faced unique potential limitations including a lack of relevant information regarding prescribed fire permits, …
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Within-fire patchiness associated with prescribed burning in the northern Jarrah forests of Western Australia
… marginata) forests are managed to reduce fuel loads to protect life and property. Additionally, specific biodiversity and fuel reduction programs are completed by means of low intensity controlled burns carried out by the Parks and Wildlife Service, part of the Department of Biodiversity, …
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Estimation of potential aircraft fuel burn reduction in cruise via speed and altitude optimization strategies
… mounts, social and political pressure to reduce fuel burn and C0 2 emissions has increased accordingly, especially in the rapidly growing aviation industry. Operational improvements offer the ability to increase the performance of any aircraft immediately, by simply changing how the aircraft is …
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Variation in tree mortality and regeneration affect forest carbon recovery following fuel treatments and wildfire
Forest fuel treatments such as thinning and burning have been proposed as tools to stabilize carbon stocks in fire-prone forests in the Western U.S. Although treatments immediately reduce forest carbon storage, losses may be paid back over the long-term if treatment sufficiently reduces future …
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Changes in forest structure and composition associated with unique land use histories: Implications for restoration
… logged, fire excluded forests and caution that fuel reduction and restoration policies which do not account for the legacy of logging may be ineffective in accomplishing their desired goals.
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Variation in tree mortality and regeneration affect forest carbon recovery following fuel treatments and wildfire
Forest fuel treatments such as thinning and burning have been proposed as tools to stabilize carbon stocks in fire-prone forests in the Western U.S. Although treatments immediately reduce forest carbon storage, losses may be paid back over the long-term if treatment sufficiently reduces future …
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Changes in forest structure and composition associated with unique land use histories: Implications for restoration
… logged, fire excluded forests and caution that fuel reduction and restoration policies which do not account for the legacy of logging may be ineffective in accomplishing their desired goals.
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
… Western United States that could benefit from fuel reduction treatments to improve forest health and reduce wildfire fuels. These treatments generate forest residues that are typically piled and burned. However, with increasing concerns about energy security, high oil prices, air quality from …
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
… Western United States that could benefit from fuel reduction treatments to improve forest health and reduce wildfire fuels. These treatments generate forest residues that are typically piled and burned. However, with increasing concerns about energy security, high oil prices, air quality from …
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