3 resultados para Refuse composting
em DRUM (Digital Repository at the University of Maryland)
Resumo:
In the fall of 1989, emergency excavation was undertaken in conjunction with restoration work at the John Brice II (Jennings-Brice) House, 18AP53. The exact date of construction for this brick home is problematic, and it was hoped that archaeological investigation could provide conclusive evidence to firmly establish the structure's date of construction. Excavation of one 5 X 5 ft. unit revealed the presence of 10 separate soil layers and four features of note, described in detail below. Unfortunately, no builders trench or similar feature by which we might date the house's construction was recovered. Future plans and possibilities for excavation at the property are outlined with the hopes of performing subsequent work at this rich site. We anticipate a focus on the arrangement and changes in use of the houselot, amassing evidence to support the presence of a vernacular garden on the property during the 18th century, as well as researching refuse disposal patterns, and clues to changing lifeways through the 18th century.
Resumo:
Biogas is a mixture of methane and other gases. In its crude state, it contains carbon dioxide (CO2) that reduces its energy efficiency and hydrogen sulfide (H2S) that is toxic and highly corrosive. Because chemical methods of removal are expensive and environmentally hazardous, this project investigated an algal-based system to remove CO2 from biogas. An anaerobic digester was used to mimic landfill biogas. Iron oxide and an alkaline spray were used to remove H2S and CO2 respectively. The CO2-laden alkali solution was added to a helical photobioreactor where the algae metabolized the dissolved CO2 to generate algal biomass. Although technical issues prevented testing of the complete system for functionality, cost analysis was completed and showed that the system, in its current state, is not economically feasible. However, modifications may reduce operation costs.
Resumo:
Despite a current emphasis in Romantic scholarship on intersubjectivity, this study suggests that we still have much to learn about how theories of intersubjectivity operate in Romantic-era writings that focus on the family—the most common vehicle for exploring relationships during the period. By investigating how sympathy, intimacy, and fidelity are treated in the works of Mary Hays, Felicia Hemans, and Mary Shelley, this dissertation discovers the presence of an “ethics of refusal” within women’s Romantic-era texts. Texts that promote an ethics of refusal, I argue, almost advocate for a particular mode of relating within a given model of the family as the key to more equitable social relations, but, then, they ultimately refuse to support any particular model. Although drawn towards models of relating that, at first, seem to offer explicit pathways towards a more ethical society, texts that promote an ethics of refusal ultimately reject any program of reform. Such rejection is not unaccountable, but stems from anxieties about appearing to dictate what is best for others when others are, in reality, other than the self. In this dissertation, I draw from feminist literary critiques that focus on ethics; genre-focused literary critiques; and studies of sympathy, intimacy, and fidelity that investigate modes of relating within the context of literary works and reader-textual relations. Psychoanalytic theory also plays an important role within my third chapter on Mary Shelley’s novel Falkner. Scholarship that investigates the dialectical nature of Romantic-era literature informs my entire project. Through theorizing and studying an ethics of refusal, we can more fully understand how intersubjective modes functioned in Romantic literature and discover a Romanticism uniquely committed to attempting to turn dialectical reasoning into a social practice.