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 12 of 12 for “"three-dimensional maps"”.
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Three-dimensional interactive maps - theory and practice
Maps are among the oldest and the most popular forms of graphical communication, which have always been highly regarded for high efficiency of information transfer. Regardless of how efficient twodimensional maps are, three-dimensional interactive maps offer significant improvements and benefits …
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University Students' Perceptions, Interpretations, and Preferences Regarding Two -Dimensional and Three -Dimensional Concept Mapping
… showed strong support and preference for the three-dimensional concept mapping environment for viewing and comprehending complex, multiple-perspective information and resulted in five prominent conclusions emerging from this study. First, information interpretation is similar for both …
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High-order adaptive methods for computing invariant manifolds of maps
… methods for computing invariant manifolds of maps which arise in the study of dynamical systems. In order to decrease the number of points needed to compute a given curve/surface, he proposes using higher-order interpolation/approximation techniques from geometric modeling. He uses Bezier …
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Dense, sonar-based reconstruction of underwater scenes
Three-dimensional maps of underwater scenes are critical to-or the desired end product of-many applications, spanning a spectrum of spatial scales. Examples range from inspection of subsea infrastructure to hydrographic surveys of coastlines. Depending on the end use, maps will have different …
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Image guidance in cardiac electrophysiology
… the patient's body, it is possible to construct three-dimensional maps of the ventricular and atrial chambers of the heart. Each point of these maps is annotated based on bioelectrical signals recorded from the electrodes located at the tip of the catheter. These maps are then used to guide …
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Digital ear scanner : measuring the compliance of the ear
… is introduced, which is capable of generating three dimensional maps of an ear subjected to a varying pressure. Specifically a hearing aid can be constructed with allowances for the compliance of the ear and the distortions associated with jaw movement. It is shown that the information that can …
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Development of a porous piezoresistive material and its applications to underwater pressure sensors and tactile sensors
… array is inspired by the ability of fish to form three-dimensional maps of their surroundings. Fish are able to decipher various pressure waves from their surroundings using the array of pressure sensors in their lateral line sensory organs that can detect minute pressure differences. Similarly, …
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Placing outer space : an earthly ethnography of other worlds
… scientists who create high resolution and three-dimensional maps of Mars. These maps reflect the kind of place Mars is today: it is available to everyone to explore, it is displayed such that you can imagine standing on the surface, and it is presented as geologically dynamic in ways …
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Volumetric Imaging Across Spatiotemporal Scales in Biology with Fluorescence Microscopy
Quantitative three dimensional maps of cellular structure, activity and function provide the key to answering many prevalent questions in modern biological research. Fluorescence microscopy has emerged as an indispensable tool in generating such maps, but common techniques are limited by …
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Dense, sonar-based reconstruction of underwater scenes
Three-dimensional maps of underwater scenes are critical to—or the desired end product of—many applications, spanning a spectrum of spatial scales. Examples range from inspection of subsea infrastructure to hydrographic surveys of coastlines. Depending on the end use, maps will have different …
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Computational Development for Secondary Structure Detection From Three-Dimensional Images of Cryo-Electron Microscopy
… medium resolution (5-10 Å) of amino acids from three-dimensional (3D) density images, secondary structure elements (SSEs) such as alpha-helices and beta-sheets can still be detected. The accuracy of SSE detection from the volumetric protein density images is critical for <em>ab initio</em> …
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Improving the robustness of GPS direct position estimation
… reflection surfaces, estimated from available three-dimensional (3D) maps. We conducted experiments in front of the 50~m by 40~m wind tunnel located at NASA's Ames Research Center in Mountain View, California, utilizing the surface of the wind tunnel as a reflector of GPS signals. We …