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.
Results
Showing 1 to 20 of 87 for “"Plunging"”.
-
Analysis and Modeling of Plunging Flows
… to the field observations, we found that the plunging flows in the field could be different from those in current theoretical and laboratory scale modeling. In particular, two unusual and speculated observations drew our attention: Fleenor and Schladow (2000) reported an exceptionally high …
-
The mermaids dive for freedom: Voices of feminist community activists plunging through neoliberal times
This thesis is based on a narrative inquiry with three feminist community activists. Its purpose is to provide a resource to support the radical praxis of feminist community educators in a neoliberal context which has appropriated both community education and feminism for a labour market agenda. It …
-
The Effects of Basin Slope and Boundary Friction on the Character and Plunge Location of Hyperpycnal Flows Entering a Laterally Unbounded Basin
… plumes in river mouth discharges. The plunging of high density flows in two dimensional channels has been extensively studied before. A fundamental assumption in these studies is that the flow is laterally confined. These studies allow the flow to plunge only in two directions, the …
-
Geology of the Millers Cove area, Roanoke, Craig and Montgomery counties, Virginia
… Mountain is formed by the overturned northeast plunging Cove Mountain anticline and Dragons Tooth syncline. To the southwest the anticline passes beneath the Pulaski fault. The extension of the anticline to the northeast is unknown but it may be continuous with the Broad Run anticline. The …
-
Robust Nonlinear Estimation and Control Applications using Synthetic Jet Actuators
… vibrational motions in the rocking, pitching and plunging displacements of an aircraft wing. To address this, the use of synthetic jet actuators (SJAs) in UAV flight control systems is becoming popular as a practical alternative and to mechanical deflection surfaces.</p> <p>Synthetic jet actuators …
-
Tectonics of the lower Susquehhanna River region, southeastern Pennsylvania and northern Maryland: late proterozoic rifting to late paleozoic dextral transpression
… During stage one σ1 and σ3 were shallowly plunging, with σ2 steeply plunging. During stage two σ1 and σ2 were shallowly plunging, with σ3 steeply plunging. The structural evolution and associated change in stress array suggests unroofing during transpression, consistent with the decrease in …
-
Proterozoic history of the Idaho Springs-Ralston shear zone: evidence for a widespread ca. 1.4 Ga orogenic event in central Colorado, The
… NE-trending axial planes and shallowly NE-plunging fold hinge lines. SE of the IRSZ they also plunge shallowly NE, but axial planes dip shallowly ENE. We suggest that the isoclinal F1 folds are folded first by asymmetric NW-side-up meter-scale F2 folds, followed by a several km-scale …
-
STRUCTURAL AND KINEMATIC INVESTIGATION OF THE DADEVILLE COMPLEX-BREVARD ZONE CONTACT (SOUTHERN APPALACHIANS): POLYPHASE EMPLACEMENT OF AN ALLOCHTHONOUS TERRANE ON THE LAURENTIAN MARGIN
… (D2). D2 created the shallowly east or west plunging mineral lineations and also refolded F1 to create doubly-plunging hinges. Both deformational events occurred during the Acadian/Neoacadian orogeny at peak amphibolite-facies metamorphism. The DC was accreted onto Laurentia in two stages …
-
Geometry, kinematics and age of the northern half of the White Mountain shear zone, eastern California and Nevada
… dipping foliation and associated shallowly plunging NNE to NW-trending stretching lineations. S-C fabrics observed in outcrop, microstructural shear sense indicators and kilometer-scale foliation geometry all indicate dextral movement. Localized discrete zones of coeval steeply plunging …
-
Laboratory measurements of the sound generated by breaking waves
… observed immediately following the impact of the plunging wave crest. The origin of this low frequency signal was found to be the pulsating cylinders of air which are entrained by the plunging waves. The pulsation frequency correlated with both the wave slope and dissipation. Following the …
-
Orientations and magnitudes of paleostress in the Great Valley Province of northern Virginia
… results in this second set of compression axes plunging to either the SE or NW, sub-parallel to the regional thrust transport direction. The third pattern, originating from early cements, places compression directions plunging to the NE-SW at angles which are sub-parallel to bedding. These …
-
Numerical Study in Wind Energy Extraction from Controlled Limit-Cycle Oscillations in Modified Glauert Airfoil
… controllers show success in amplifying plunging LCO motion by activating SJAs with the natural frequency of plunging. When the low fidelity tool is complete, it can be used for fast structural, control, and geometric optimization to further increase the energy harvesting potential of the …
-
Modeling the Dynamics of Black Hole Systems and the Ringdown of Black Hole Spacetimes
… equation to calculate the worldline for plunging bodies with varying orbital geometries. Perturbations about Kerr spacetime are a linear superposition of quasinormal modes, and we calculate the amplitude of these mode frequencies as excited by a plunging body. The key result is that the …
-
The optimization of a dual foil flapping device
… propulsion would be great. A dual foil pitching-plunging device is used to replicate the basic swimming motion of a dolphin. Numerical simulations are used to predict the behavior of a single foil configuration and its wake. The numerical results are used to predict the behavior of the device and …
-
Structural analysis of the north-central Glennie Domain and controls on gold mineralization in the Santoy Gap Hanging Wall deposit, Seabee area, northern Saskatchewan
… (AP) 160°/82° (hinge line (HL) steep, doubly-plunging); Area 2: AP 346°/79°, HL 55° → 002°; Area 3: AP 347°/72°, HL 65° →124°. F4 was quantified in Areas 1 and 3 as SW-trending, open and moderately-steeply inclined with a gently-moderately NE-plunging fold axis. Average F4 attitudes are – Area …
-
Unsteady Nonlinear Aerodynamic Modeling and Applications
… loads on an NACA-0012 airfoil undergoing a plunging motion under various operating conditions. We supplement these measurements with flow visualization to obtain better insight into phenomena causing enhanced lift. For the model, we present the frequency response function for the airfoil at …
-
Shear zones of the Maud Belt, Antarctica : kinetics and deformation mechanisms
… are found in the study areas, a weak, shallow plunging, E-trending lineation that occurs within the host rock and always alongside a well developed, shallow plunging, SE-trending lineation. Within the shear zones only the SE-trending lineation is found. The presence of only the SE-trending …
-
Robust and Adaptive Nonlinear Control of Limit Cycle Oscillations in UAVs Using Synthetic Jet Actuators
… as vibrational motions in the pitching and plunging displacements of an aircraft wing. Even in low Reynolds number (low-Re) fight regimes, LCO can exceed the limiting boundary for safe UAV fight. Further, as practical considerations motivate the design of smaller, lighter weight UAVs, there …
-
Kinematics and timing of the Pinto shear zone, New York Mountains, northeastern Mojave Desert, California
… top-to-the S-SW shearing, parallel to a S-SW plunging lineation, suggesting the Pinto shear zone is a normal fault. Hanging-wall deformation is accommodated by antithetic high-angle faulting localized along porphyry dike margins. Deformation fabric within the shear zone grades structurally …
Page 1 of 5