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 24 for “"Range extension"”.
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What is driving the range extension of Gibbula umbilicalis (Gastropda, Trochidae) in the eastern English Channel?.
… on the south coast of England. Since 2000 the range of Gibbula umbilicalis has extended 140km eastwards with records now present as far along the coast as Kent. Since the 1990s temperatures in the English Channel have increased faster (and to higher levels) than during any other period …
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Geology of the Northern Alto Relex Area, Big Bend National Park, Brewster County, Texas
… by high-angle normal faults from Basin and Range extension. During the Laramide Orogeny and Basin and Range extension, the underlying basement shear zone called, the Texas Lineament, was reactivated creating a transpressional and transtensional regimes. The general geology of this area was …
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Electrostatic micro actuators for mirror and other applications
… Mirror systems, with a large, stable, analog range of operation. In addition fast prototyping methods are in demand for the proof of concept fabrication of these mirror designs. This dissertation addresses these research topics by presenting 1) a general capacitance-based quasi-static design …
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ENGINEERING PHAGE HOST RANGE PROMISCUITY
… it is also a key factor dictating host range specificity. Viunalikeviruses are lytic-tailed phages with dsDNA genomes of ~150 kbp that exhibit extensive sequence homologies within the family and generalised transduction capacity. The Viunalikeviruses are virulent phages, and …
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Structural Analysis of the Northwest Wind Mountain Quadrangle, New Mexico: Proterozoic Shearing to Cenozoic Brittle Faulting in the Burro Mountains
… faults as normal and strike-slip faults during extension related to the formation of the Basin and Range and the Rio Grande Rift starting at ~37 Ma.</p> <p> Evidence for northeast (031<sup>o</sup>; N31<sup>o</sup>E) shearing during accretion of the Mazatzal Province is recorded by southwest …
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A Descriptive Survey of Freshwater Unionidae Bivalves in Five Creeks Located in West Central Georgia
… the best data available at this time, there is a range extension into the Chattahoochee River System of one species, Anodonta peggyae Johnson, 1965. Factors that appear to limit the distribution and abundance of Unionidae species include heavy siltation caused by anthropogenic stream-side …
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Pluton source varition over two magmatic pulses in the White-Inyo range, central-eastern California : implications for paleozoic and mesozoic tectonic reconstructions
… uses compositions of plutons in the White-Inyo Range (WIR) of central-eastern California, which is an important tectonic boundary as it is the easternmost extent of the Mesozoic Cordilleran arc and the western edge of Basin and Range extension. The main goal of this dissertation is to understand …
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A Vascular Flora of the Manter and Salmon Creek Watersheds, Tulare County, California
… in the study area, representing an eastward range extension of 26 km (16 mi). The results include a complete description of vegetation and habitats, as well as an annotated checklist with descriptions of local abundance, habitat types, and a voucher citation for each taxon documented.</p>
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Robust control of a surge and rotating stall in an axial compressor
… axial compressor. Instead of achieving extension of linearly stable operating range, this research is focused on the followings: (1). The operability of the compressor, the ability of maintaining the stable operations of the compressor near the operating points in the presence of the …
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Structural Analysis of Rock Canyon Near Provo, Utah
… (near Provo, Utah) provides insight into Wasatch Range tectonics and fold-thrust belt kinematics. Excellent exposures along the E-W trending canyon allow the use of digital photography in conjunction with traditional field methods for a thorough analysis of Rock Canyon's structural features. …
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Performance analysis of cooperative communication for wireless networks
… performance under imperfect relaying, and study range extension and energy efficiency offered by the system when compared to a traditional system.
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A Novel Distractive and Mobility-Enabling Lumbar Spinal Orthosis for Treating Mechanical Low Back Pain
… maintain spinal off-loading throughout extended ranges of movement. The research objectives were to a) Design a new orthosis that reduced bending moment build up and sustained spinal off-loading throughout daily living ranges of flexion and extension movement, b) Test the new orthosis prototype …
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The kanarra fold-thrust system -- The leading edge of the sevier fold-thrust belt, southwest Utah
… restored to Cretaceous time (i.e., pre-Basin and Range extension) demonstrate the formation of a composite anticline- syncline pair and fold accommodation thrust faulting are linked in the development of this Sevier structure. A previously unrecognized thrust, the Red Rock Trail thrust, formed due …
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The Burrowing Barnacles (Cirripedia, Acrothoracica) of South Africa
… different species of coralline algae across a range of sites up to 900 km apart. These are the first unequivocal records of living acrothoracicans burrowing into coralline red algae. Further inspections of coralline algae in this and other regions will likely reveal many more new host records …
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Slow modulation of cochlear response by the olivocochlear efferent system elicited by sustained noise or threshold elevation in the contralateral ear
… acoustic trauma, anti-masking, and dynamic range extension. Second, we investigated the LOC bilateral balancing model, which proposes that the LOC system acts to balance long-term average neural output from both cochleae, which would be important for binaural processing of sounds. For this, …
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Ecological and Genetic Connectivity of Shrews (Sorex spp.) across Interstate-90 in the Washington Cascade Range
… – at sites on the eastern slopes of the Cascade Range where wildlife crossing structures will be built in the future. My main objectives were to verify shrew species composition, assess population genetic structure relative to the highway, and determine whether shrew abundance varied among macro- …
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Active control of rotating stall in a transonic compressor stage with inlet distortion
… and to extend the compressor stable operating range. Results for radial and circumferential inlet distortion are reported. First, the effects of radial distortion on the compressor performance and the dynamic behavior were investigated. Control laws were designed using empirical transfer …
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Microwave Lens Designs: Optimization, Fast Simulation Algorithms, and 360-Degree Scanning Techniques
… simulation algorithms, and 360-degree scanning range extension. First, a minimum-phase-error, non-focal lens design method is proposed. It does not require a specific number of foci along the beam contour; however, minimum phase errors for all beam ports are able to be achieved. The proposed …
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An assessment of Quality Deer Management on a private hunt club in the Virginia Piedmont
… Virginia, during 2003-2006. I examined home range dynamics of male white-tailed deer (Odocoileus virginianus), deer/hunter interactions, and aspects of population dynamics. I also developed a new rocket net method to capture deer using a remote video system that was more efficient than …
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Structural Analysis of Ernst Tinaja Canyon Focusing on Strike-Slip Faulting and Folding, Big Bend National Park, Texas
… Orogeny, Tertiary volcanism, and Basin and Range extension. The study area is in Big Bend National Park on the western slopes of the Sierra Del Carmen range at Ernst Tinaja, an erosional pothole in the Cretaceous Buda Limestone. The pothole is in a narrow slot canyon that also features …
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