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 11 of 11 for “"directional dependence"”.
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Directional Dependence and Polarization Anisotropy in Pump-probe Microscopy
… my experimental results regarding the directional dependence of pump-probe signals. I upgrade imaging system for angle-resolved measurements, and use melanin particles and gold nanoparticles to study the role of scattering in the generation of pump-probe signals. The results show the …
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Modelling-based design of anisotropic piezocomposite transducers and multi-domain analysis of smart structures
… and to have at the same time high direction-dependence. The equivalent properties of Macro Fiber Composites are determined via the Asymptotic Homogenisation Method (AHM) with an analytical solution and with a numerical solution via FEM which takes into account the effect of the electrodes. …
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Elastic and viscous anisotropy in Earth's mantle : observations and implications
… thesis I address the topic of anisotropy - the directional dependence of physical properties of rocks - from two complementary angles: I use seismic anisotropy to detect deformation in the mantle, and I demonstrate the importance of accounting for rheological anisotropy in mantle flow models. …
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Geometrically Nonlinear Stress Recovery in Composite Laminates
… in<br />structures. However, because of the directional dependence of the properties of<br />composite materials, additional failure modes appear that are absent in<br />homogeneous, isotropic materials. Therefore, a stress analysis of a composite<br />laminate is not complete without an …
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Design and characterization of next-generation tissue equivalent proportional counters for use in low energy neutron fields
… the optimized instruments as well as the directional dependence of these instruments’ sensitivity and dose equivalent energy response for each of the three above mentioned neutron fields will be presented. This thesis presents two novel compact designs for TEPCs that may be suitable for …
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Improving High Sensitivity GNSS Receiver Performance in Multipath Environments for Vehicular Applications
… in the high sensitivity receiver. Multipath directional-dependence phenomenon (i.e., the variation resulting from the direction of travel of the user) is observed during this process; and the multipath maximum Doppler offset and minimum Doppler offset are derived and verified by the real …
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Electron Hydrodynamics in Crystalline Solids: Microscopic Origins, Mesoscopic Size Effects, and Macroscopic Observables
… observations of the non-monotonic temperature-dependence and directional-dependence of electron flow in bulk WTe2 and PdCoO2 respectively are elucidated. The thesis concludes with a discussion on the importance of the presented results in the broader context of the field of electron …
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Magnetoelectric laminated composites and devices
… biases. Besides, the laminates have a good directional dependence of the magnetic field: it can only sense the magnetic field along its longitudinal direction. Symmetric bimorph and differential mode magnetoelectric laminates have been designed to reject (decrease) thermal and vibration …
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Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
… properties as well as seismic properties. The directional dependence of geomechanical properties should be taken into account in order for operators to optimize hydraulic fracture design and to develop the field more efficiently. In addition, I investigate implications of the modeling results …
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Retrieval of earthquake source parameters in inhomogeneous anisotropic mediawith application to swarm events in West Bohemia in 2000
… wavefield. Conversely, seismic anisotropy, i.e. directional dependence of elastic properties, has been observed in the earth's crust and mantle such as in West Bohemia. In comparison to isotropy, anisotropy causes modifications in wave amplitudes and shear-wave splitting. In this work, effects of …
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Biomineralized Composites: Material Design Strategies at Building-Block and Composite Levels
… For the crossed-lamellar M. diadema shell, directional dependence of the shell property was revealed, where the transversal direction (perpendicular to the growth line) represents both the stronger and tougher direction, but the longitudinal direction is more resistant to notches and …