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 10 of 10 for “"geometric constraint"”.
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Applications of differential geometry to high spin field theories
… of methods of differential geometry to the constraint analysis of relativistic high spin field theories. As a starting point the coordinate dependent descriptions of the Lagrangian and Dirac-Bergmann constraint algorithms are reviewed for general second order systems. These two algorithms …
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On Non-rigid Linkages
… purposeful motion, elastic deformation, and geometric constraint simultaneously. Existing analytical tools do not fully describe such systems, particularly in regimes involving large shape change, changing constraint sets, or transitions between rigid and non-rigid modes of motion. This …
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Curve evolution and estimation-theoretic techniques for image processing
… The key behind this approach is the use of geometric curve evolutions which maximally separate a predetermined set of statistics within the image. In addition, by introducing a geometric constraint on the segmenting curve, we modify this segmentation algorithm to produce a geometric …
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Spatial reasoning for computer aided design, manufacturing and process planning
Reasoning about geometric relations and construction of scenes satisfying them are critically important tasks in computer-aided design, manufacturing and process planning. This work addresses these tasks by producing a centralized server for static and dynamic geometric reasoning. Static reasoning …
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Chemical and enzymatic tools to study proteins in their native cellular environment
… than aryl azide and diazirine, its high geometric constraint to its proximal crosslinkable C-H bonds may decrease its crosslinking yield. Knowing the protein structure and amino acid environment surrounding benzophenone could help in choosing the most optimal position for the …
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Stress and creep damage evolution in materials for ultra-supercritical power plants
… with the effects of residual stresses and constraint on Type IV cracking. In the first part of this work, the residual stresses in a 25.4 mm thick, 324 mm diameter pipe girth weld, made in a P91 steel pipe, have been measured in both the as-welded and post weld heat treated (PWHT) …
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From Shadows to Hotspots: Imaging of Inner Protoplanetary Disc Structure
… inner disc structure, providing observational constraints that advance both disc physics theory and planet formation models. Using CHARA/MIRC-X and VLTI/PIONIER data, I present my published paper with the first well-resolved characterisation of the innermost disc around the T Tauri star HD …
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Real-time Dense Simultaneous Localisation and Mapping over Large Scale Environments
… 2) estimating a dense photometric camera pose constraint in conjunction with a dense geometric constraint and jointly optimising for a camera pose estimate; 3) optimising the dense map by means of a non-rigid space deformation parameterised by a loop closure constraint; and, 4) intelligently …
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Dynamic wetting of soft materials and applications of dynamic tensiometry
… of individual fibers in each bundle imposes a geometric constraint on the maximum oleophobicity that can be achieved solely by modifying the surface energy of the coating. I demonstrate how the introduction of an additional higher order micro /nano-texture on the fibers (n = 3) is necessary to …
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An Assessment of Hypocenter Errors Associated with the Seismic Monitoring of Induced Hydro-fracturing in Hydrocarbon Reservoirs
… reduced location error and removed horizontal geometric bias observed in the two-well case. Seismic event data recorded during hydro-fracture treatments could potentially be used for three-dimensional joint hypocenter-velocity tomography. This would require observation wells close enough to …