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 8 of 8 for “"Radial structure"”.
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Constraining the Radial Structure of Seismic Attenuation using Multiple S-Wave Datasets
… constraints on Earth's thermal and chemical structure due to its strong sensitivity to temperature and presence of volatiles. This study investigates the radial Q structure of Earth's mantle using amplitude measurements from core-diffracted S waves (Sdiff) and core-reflected S waves (ScS), …
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Authigenic analcite in the Golden Valley Formation southwestern North Dakota
… are recognized: (1) spherulites with an internal radial structure; (2) spherulites with a massive center and a peripheral radial structure; and (3) spherulites lacking an internal radial structure or having a poorly-defined internal structure. The spherulites occur individually and as coalesced …
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Perception of Heading From Optical Flow: Effects of Conflicting Velocity and Trajectory Information
… visual information for determining heading: the radial trajectories of optical flow, and invariant sources of trajectory information in retinal flow. The present research presents an alternative source of information for determining heading based on gradients of statistical properties of retinal …
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Dissonant Neighbours Progression and Radiality in Welsh and English Poetic Narrative to c. 1250
… where, and why we find temporal progression and radiality in the poetic narrative of both literatures. The term ‘radiality’ is discussed by Joseph Clancy, who, in introducing his translations of medieval Welsh poems, describes them as generally having ‘“radial” structure, circling about, …
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Structure, Dynamics and Association of Thermosensitive Core-Shell Particles
… SAXS and DLS have been used to investigate the structure and swelling of the particles. The micrographs show directly inhomogeneities of the network. Moreover, a buckling of the shell from the core particle was observed. The buckling increases with decreasing degree of crosslinking. A comparison …
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Unveiling the History and Nature of the Milky Way with Galactic Surveys and Numerical Simulations
… this thesis presents new measurements of the structure of our Galaxy and new insights into aspects of its history of assembly and evolution which have a strong influence on its α-element abundances. Providing a baseline constraint on future models for the formation of the Galaxy, I present a …
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The Low Frequency Edge Oscillation in Alcator C-Mod and ASDEX Upgrade I-Mode
… which is thought to exist at the bottom of the radial electric field well. Its frequency structure is observed to depend on electron temperature and is modulated by the sawtooth heat pulse. Previous work has established that the LFEO is a Geodesic Acoustic Mode (GAM). The GAM is a toroidally and …
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The challenges of working and studying at a satellite campus : a case study of the Riverside Campus of the Durban University of Technology
Submitted in fulfillment for the Degree of Doctor of Technology: Business Administration, Durban University of Technology, Durban, South Africa, 2014.