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 16 of 16 for “"floater"”.
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Reproductive Biology of the Flat Floater Mussel, Anodonta Suborbiculata, Say, 1831 (Mollusca: Unionidae)
The flat floater mussel, Anodonta suborbiculata , is a large, distinctive freshwater bivalve that formerly occurred in shallow lentic habitats throughout the Mississippi River Drainage. The flat floater is presently rare due to habitat loss. Several aspects of the reproductive biology of this …
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Bioaccumulation and Toxicokinetics of Polycyclic Aromatic Compounds and Metals in Giant Floater Mussels (Pyganodon grandis) Exposed to a Simulated Diluted Bitumen Spill
… from naturally weathered dilbit in adult giant floater mussels (Pyganodon grandis), to determine the rates at which they were accumulated and excreted. More specifically, the bioaccumulation potential and toxicokinetic parameters of polycyclic aromatic compounds (PACs) and various metals were …
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Fully coupled dynamic analysis of a floating wind turbine system
… Drawing upon the maturity of wind turbine and floater technologies developed by the wind energy and oil and gas industries, respectively, large offshore wind energy systems have been developed and are being proposed for operation in offshore areas where environmental restrictions are less …
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A Proximate Perspective on the Cooperative Behavior of a Lekking Passerine
… courtship display behaviors wherein both floater and territory-holding males perform coordinated courtship displays. Territory-holding males sire essentially all offspring and, among territory-holders, those that are more cooperative exhibit higher reproductive success. Cooperation also …
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Dynamics of Pitching Wave Energy Converter with Resonant U-Tank Power Extraction Device
… energy converter (WEC), comprising a pitching floater integrated with a resonant U-tank (RUT) and a Wells turbine as power take-off (PTO). Theoretical formulation of a fully coupled multi-body dynamic system, incorporating the thermodynamic processes of the RUT air chamber, its interaction with …
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Advanced controls for floating wind turbines
… and wave-induced motions of the specific floater. The present work presents a simulation study of advanced controls for Tension Leg Platform (TLP) FOWT that attempts to enhance the power output of the Wind Turbine by conversion of the surge kinetic energy of the TLP into wind energy. The …
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Coupled dynamics and economic analysis of floating wind turbine systems
… loads of the wind turbine rotor on the tower and floater, the aerodynamic damping introduced by the wind turbine rotor, the hydrodynamic added mass and damping introduced by wave-body interactions, and the hydrodynamic forces caused by wave excitation.
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Drag coefficient and damping of moorings and their effect on FPSO's response
… is normally preferred to accurately predict the floater motions as well as the mooring and riser system response. The aims of this thesis are to investigate mooring line damping, drag coefficient of mooring chain and their effect on the motions of FPSOs. In particular the aim is to determine the …
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Floating offshore wind farms : demand planning & logistical challenges of electricity generation
… speeds in their onshore counterparts. By using floaters adapted from oilrigs, floating offshore wind farms can be operated with larger wind turbines for increased power generation. In the United States, floating offshore wind farms located off the coast of New England would be near large load …
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The development of a real-time wave energy device control algorithm based on artificial neural network
… mechanism at the bistable mode. Two types of floater responses are identified. The energy capture is significantly increased although the bandwidth is narrowed at the same time. The enhancement of energy absorption is mainly attributed to the tuning of the velocity phase, which occurs when the …
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Equilibrium graphs on the flat torus or finding zen amidst the bull
… graphs. We show that techniques by Cairns and by Floater and Gotsman generalize to the toroidal setting with minor modifications; our generalization of the latter also provides a short proof of a conjecture of Connelly et al. for geodesic torus triangulations. On the other hand, Alamdari et al.'s …
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The reintroduction of the Aldabra rail Dryolimnas cuvieri aldabranus to Picard Island, Aldabra Atoll
… adult survival rate of 85 %, with a fluctuating floater population. It also shows the population to be very robust to the removal of territorial birds for other proposed reintroductions, but highly vulnerable to the establishment of a predator. The soft release protocol (including a period of …
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Understanding the decline of Martial Eagles Polemaetus bellicosus in the Kruger National Park, South Africa
… ranged widely (ca. 44,000 km²) suggesting a floater population exists in the region. The death of three of these four floater individuals (two persecutions and an electrocution) indicates that adults are particularly at risk of mortality during these wide-ranging movements beyond protected …
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Development of a diet for rearing juvenile freshwater mussels
… of the rainbow mussel (Villosa iris) and giant floater (Pyganodon grandis). After 45 days post-metamorphosis, juvenile V. iris fed algae with silt exhibited a two-fold increase in shell length (532 μm), and 63.5% survival. Juvenile P. grandis exhibited similar results at 45 days …
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Site fidelity and territorial behaviour of some migratory passerine species overwintering in the Mediterranean area
… and 3) birds that did not defend territories (floaters). Both territorial and non-territorial birds seemed to be resident in the area throughout the winter. No differences in morphology or body condition were recorded between territorial and non-territorial birds. Adult males attacked …
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Ecology Of Non-Breeding And Breeding Crested Caracaras (Caracara cheriway) In Florida
Like many species, Florida's population of Northern Crested Caracaras (Caracara cheriway, hereafter "caracara") is likely declining due to loss of breeding habitat. Consequently, management-oriented restrictions on landscape modification are applied where breeding occurs, but management rarely is …