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 46 for “"relative orientation"”.
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Relative orientation with limited control in close range Photogrammetry
… points as required for a conventional absolute orientation procedure. The thesis investigates the replacement of the traditional control network by a few control distances measured between well-defined artificial markers or natural feature points. The measured distances must then serve to reduce …
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The Application and Analysis of Automated Triangulation of Video Imagery by Successive Relative Orientation
… of images using an automated approach. Automatic orientation of strips of video frame imagery would facilitate the construction of three dimensional models with less demand on a human operator for tedious measurement. Often one has no control points, so only relative orientation is possible. The …
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Density functional theory investigations of graphene-based heterostructures
… strengths of these dipoles are sensitive to the relative orientation between the two graphene layers and between the graphene and palladium (111). Additionally, the binding energy of graphene on palladium (111) depends on its orientation. We elucidate the physical origin of the effect of growing …
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Image understanding and feature extraction for applications in industry and mapping
… is undertaken. An algorithm for determining relative orientation parameters incorporating the epipolar line constraint is investigated and compared with a standard relative orientation algorithm. In conclusion a basic system that can be automated based on some novel techniques in conjunction …
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Part I. Stereochemical Studies on the Addition of Allylsilanes to Aldehydes. Part II. Stereochemical Studies on the Addition of Allylmetal Reagents to Acetals
… model systems were investigated to determine the relative disposition of double bonds in the transition structure of the allylmetal-aldehyde condensation. The next model system incorporated a deuterium label to allow an unbiased assessment of the syn versus anti S$\sb{\rm E}\sp\prime$ pathways. …
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An assessment of subscale notched specimens for composites shear property measurement
… dependence of the measured shear modulus on the relative orientation of the specimen in the panel is identified. The application of the subscale, circular notched specimens to obtain the shear modulus of the SMC material is discussed.
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Nanoscale Josephson Devices
… using a Co/Cu/Fe20Ni80 barrier. In this case the relative orientation of the magnetic moments of the Co and Fe20Ni80 could be changed with an applied magnetic field. The magnetoresistance and critical current of the device showed a strong correlation, implying a direct influence of the magnetic …
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Plasmonic nanostructures and metamaterials for nanoscale light-matter interaction
… The effect of interparticle spacing and relative orientation of the nanocubes in the nanocube chains has also been analyzed. The band-edge lattice plasmon waves in plasmonic nanoantenna arrays have been studied and utilized for surface-enhanced Raman spectroscopy. Superchiral spectroscopy …
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Analysis of molecular conformations using relative planes
… research an innovative approach to calculate the relative displacement and orientation of every possible pair of rings in a given molecule was designed, tested, and implemented in the "Planes" program. Planes were defined from each of the ring substructures and the displacement and rotation of one …
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Electromagnetic formation flight of satellite arrays
… which can be quickly exhausted while maintaining relative orientation. Furthermore, the total required propellant mass is highly dependant on [delta]V, which requires propellant mass to increase exponentially. Additional problems posed by propellant include optical contamination, plume …
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Six degrees of freedom estimation using monocular vision and moiré patterns
… the vision-based estimation of the position and orientation of an object using a single camera relative to a novel target that incorporates the use of moire patterns. The objective is to acquire the six degree of freedom estimation that is essential for the operation of vehicles in close …
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Effect of two-module-docked spacecraft configurations on spatial orientation
… a person in one module to mentally visualize the relative orientation of the other module, and spatial relationships of surfaces in it. Spacecraft and space station modules are typically connected differently in space from the way they would be in training simulators on Earth. The local visual …
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Ontwikkeling van spirocyclische vitamine D3 analoga met potentiële dissociatie van biologische activiteiten
… configurations (indicated by cis and trans, cf. relative orientation of the O22 and C14), all features that have been shown to promote dissociation of activities (1). The synthesis of the analogues involves first the enantioselective synthesis of a spirocyclic compound. Next, the nor‐A‐ring and …
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Methods and good practice guidelines for human joint kinematics estimation through magnetic and inertial wearable sensors
… this end, it is first required to estimate the orientation of the MIMUs by means of a sensor fusion algorithm (SFA). After that, the relative orientation is computed and then decomposed to obtain the joint angles. However, the MIMUs do not provide a direct output of the physical quantity of …
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Optical Properties of Individual Nano-Sized Gold Particle Pairs
… vicinity: the distance between them, and their relative orientation with respect to the polarisation of the excitation light. These properties are subject of three chapters: One section examines the distance-dependent and orientation-sensitive scattering cross section (SCS) of two equally sized …
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Wide-angle Lens Camera Calibration using Automatic Target Recognition
… frame through a series of simulated or measured orientations and matching to signalized targets already detected in the image to a very high degree of accuracy. Through calibration of this system and rigorous modelling of its intrinsic properties, it became apparent that there was ambiguity in …
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Improved wave functions for quantum Monte Carlo
… anisotropy is outlined. Terms that depend on the relative orientation of electrons are also introduced and applied. This Jastrow factor is applied to electron gases, atoms and molecules and is found to give significant improvement at both VMC and DMC levels. Similar generalizations to backflow …
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Development of new parameters for structure determination and dynamic investigations on biomacromolecules by NMR
… torsion angle [chi] in RNA, which defines the relative orientation of the nucleobases in respect to the ribose moiety (Duchardt et al., 2004). [Chi] was derived from the angle dependence of carbon-hydrogen dipole-dipole, nitrogen chemical shift anisotropy cross-correlated relaxation rates …
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Characterization of DNA Binding Activities at Vertebrate Telomeres
… a bipartite DNA site with each Myb domain. The relative orientation and spacing of the two sites does not affect binding. We propose a model for TRF1 binding that predicts the existence of a flexible region, located between the highly conserved dimerization and DNA binding domains, that would …
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Metamaterial enhanced coupling
… field coupling is extremely sensitive to the relative orientation of the two metamaterials, and results in mode splitting between the two resonators. By manipulating their lateral displacement, the coupling, and the mode splitting, can be altered. In this way, an unprecedented modulation of …
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