The aerodynamic performance of an oscillating pitching and plunging foil operating in the energy harvesting mode is investigated. Experiments are conducted in a closed-loop recirculating wind tunnel at Reynolds numbers of 24,000 to 48,000, and reduced frequencies (k = fc/u) of 0.042 to 0.083. Foil kinematics are varied through the...
This paper is concerned with the determination of
gallium arsenide resistivity by measurement of attenuation of microwave energy at 7500 megacycles transmitted
through a slice.
The first section of this paper describes gallium
arsenide properties as compared to silicon, germanium,
silicon carbide, and diamond. A description is then
given of...
This thesis is a study of certain costs relevant to the repair of
process line equipment. A specific production configuration is studied
through computer simulation and statistics. The significance of the
simulated costs are investigated and related to practical production
problems.
Costs relevant to the "permanent repair" of production equipment...
This study of the immediate, localized effects of a small dredging
operation on the benthic invertebrate community in the shipping
channel of Coos Bay, Oregon, was designed: 1) to measure the extent
of the physical removal of benthic macro- and meiofauna by hopper
dredging; 2) to record the subsequent benthic...
Part I. The total synthesis of (+)-leptosphaerin (2), a metabolite of the marine
Ascomycete Leptosphaeria Oraemaris (Linder) was achieved, unambiguously
establishing both the relative and absolute stereochemistry of this natural product. This
synthesis also resolved the long-standing question of which of the isomeric structures 1
or 2 correctly represents the...
Traditional interpretations of James Joyce's Dubliners have often focused on the pervasive "paralysis" of the city, covered in the stories' range of "childhood, adolescence, maturity, and public life." However, these approaches have limited their focus on the women in the stories, often spotlighting the male characters--and the author--through a Freudian...
Many economically important Pacific salmon fisheries along the west coast of North America are mixed-stock, recreational systems, in which managers strive to account for interactions between fish, anglers, and management policy while balancing fishery access against conservation of vulnerable stocks. Specific challenges facing fisheries managers include limited control over angling...
Small rivers, such as those that line the Oregon coast, have been shown to deliver significant concentrations of suspended sediments and nutrients to estuaries and the coastal ocean during wet seasons during which winds are predominantly downwelling-favorable. The fate of the buoyant source water and of any suspended or dissolved...
William James came of age at a time of great social and intellectual change in the United States. During this period, new professional identities proliferated, and a new culture of professionalization developed with important ramifications for conceptions of individual and social identity. Professionalization was also closely related to key intellectual...