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 43 for “"Woody Biomass"”.
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Social Acceptance of Woody Biomass Energy: Expectations, Risks, and Uncertainties in Montana
… factors that characterize social acceptance of biomass energy are critical to future development, but not well defined. Using content analysis, I examined 187 articles related to biomass energy from the five largest newspapers according to circulation in Montana. To identify concepts that …
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Social Acceptance of Woody Biomass Energy: Expectations, Risks, and Uncertainties in Montana
… factors that characterize social acceptance of biomass energy are critical to future development, but not well defined. Using content analysis, I examined 187 articles related to biomass energy from the five largest newspapers according to circulation in Montana. To identify concepts that …
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A Comparison of Chipper Productivity, Chip Characteristics, and Nutrient Removals from Two Woody Biomass Harvesting Treatments
… The objective of this study was to compare two biomass harvesting treatments with regard to the characteristics of the chips they produced, chipper productivity, nutrient removals, and site disturbance. The first biomass harvesting treatment was an integrated harvest where roundwood was …
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The Prevalence and Operational Feasibility of Utilizing Pre-commercially Thinned Pine as a Woody Biomass Energy Source
… for forest products. Increased demand for woody biomass energy may provide landowners and harvesting contractors an opportunity to utilize PCT residues as a woody biomass energy feedstock, which may wholly or partially offset PCT costs. However, little information is available regarding …
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Assessing the woody biomass supply chain in the Pacific Northwest and Great Lakes regions: Investigating policy as drivers of change
… need for clean and accessible energy sources, woody biomass has long been entertained as a potential prospect. As energy markets and business operations are influenced by political decisions, it is essential to know the relationship between policy impacts on business innovation and investment …
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Assessment of Woody Biomass and Solar Energy Resources with Remote Sensing and GIS Techniques : A Regional Study in the High Mountains of the Eastern Pamirs (Tajikistan)
… ceratoides, Artemisia spp.), as the only woody vegetation, are of central importance in this context by representing a key thermal energy resource. But despite their relevance for sustainable development, neither an assessment of woody biomass quantities nor an evaluation of potential …
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Aboveground woody biomass estimation of green ash trees (Fraxinus pennsylvanica Marsh.) along Colorado's Northern Front Range in response to the invasive emerald ash borer (Agrilus plannipenis Fairmaire)
… will need to predict and budget for woody debris disposal from EAB-killed trees. Though existing green ash biomass predictive equations exist, most were developed for areas outside the arid West and generally represent only trees in natural forests, with full, healthy crowns. This …
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Are forests restricted by nutrient poor soils? : an analysis of soil nutrient stocks and associated vegetation in the fynbos biome, South Africa
The realized woody biomass of the Fynbos Biome in the Western Cape, South Africa falls below the climatic potential to support woody biomass. The lack of substantial tracts of woody forests has long puzzled ecologists, although patchy nutrient distribution and fire disturbance are thought to play a …
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Uncertainty, Emerging Biomass Markets, and Land Use
… dissertation, we study the effects of emerging biomass markets on land use changes between alternatives of agricultural production, conventional timber production, and forest woody biomass production for energy use. Along with the uncertainty associated with woody biomass prices and rents, …
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Environmental and economic assessment of alternative transportation fuels
… fuel, and middle distillate fuel derived from woody biomass for use in aviation or road transport. The use of LNG as a supplemental aircraft fuel is considered in the context of the Lockheed Martin C- 1 30H and C-130J transport aircraft. We estimate the cost of retrofitting these aircraft to …
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Compaction behavior, mechanical properties, and moisture resistance of torrefied and non-torrefied biomass pellets
Biomass properties have a potential to be improved by torrefaction, a thermal pretreatment process that removes hemicellulose. The intent in using torrefaction for biomass is to increase the carbon content and calorific value, as well as reduce the hydrophilic nature of woody-biomass. To facilitate …
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A stochastic techno-economic comparison of alternative jet fuel production pathways
… (AF) using corn grain, sugarcane, and herbaceous biomass; conventional gasification and Fischer-Tropsch (FT) using municipal solid waste; aqueous phase processing (APP) using woody biomass; hydrothermal liquefaction (HTL) using woody biomass; and fast pyrolysis and hydroprocessing (FPH) using corn …
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Multiple scattering of microwaves from soil surface and vegetation canopies
… with canopy constituents larger than 21 cm (e.g. woody biomass). It introduces only one new variable, [omega]₁ representing scattering from these constituents, making it almost as computationally efficient to implement as the commonly used tau-omega (zeroth-order) model. With concerns for …
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Natural resource degradation and household time allocation among rural activities : empirical evidence from Uganda
… of environmental degradation, such as loss of woody biomass, on household welfare may have been understated and less recognized. Some economists point to the development of alternative (substitute) fuels and new technology, use of fertilizers and controlled population growth as the solutions to …
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Hydrogen-Rich Syngas Derived from Smouldering Biomass and Hydrocarbon Wastes
… the smouldering system which completely treated woody biomass and coal tar while generating hydrogen. The maximum hydrogen concentration achieved in the smouldering system was 33.7% resulting in a net energy positive syngas. Evidence suggests that both heterogenous gasification and the water gas …
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Field emission measurements of solid fuel stoves in Yunnan, China
… Province, China. Fuel mixtures included coal, woody biomass, and agricultural waste. Compared to previously published emission measurements of similar stoves, these measurements have higher CO and PM2.5 emission factors. Real-time data show two distinct burn phases: a devolatilization phase …
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