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.
Results
Showing 1 to 20 of 28 for “"surface mapping"”.
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Multisource Remote Sensing based Impervious Surface Mapping
Impervious surface (IS) not only serves as a key indicator of urbanization, but also affects the micro-ecosystem. Therefore, it is essential to monitor IS distribution timely and accurately. Remote sensing is an effective approach as it can provide straightforward and consistent information over …
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Experimental and computational magnetic surface mapping of the HIDRA stellarator
… employed to experimentally measure the magnetic surfaces for rotational transform values of 1/3, 1/4 and 1/5. The electron gun used consists of a tungsten filament and fires free electrons at adjustable radial positions in the direction of the field. A moving rod covered with a zinc oxide (ZnO) …
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Land Cover and Impervious Surface Mapping Using Multispectral Airborne Laser Scanner Data
Impervious surfaces are land covers that do not allow water penetration. Water runoff from impervious surfaces can cause major flooding in extreme climates; therefore, mapping such surface covers in urban areas is of great importance for water resources, climatology, and urban studies. Automated …
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Multi-bounce Returns for Specular Surface Mapping from Consumer-grade Flash LiDAR
… LiDAR on portable smartphones for 3D specular surface reconstruction. This is an important research problem as most traditional LiDAR systems fail to detect specular surfaces. As mirror and glass are everywhere, vision systems failing to detect specular surface can be detrimental. Applications …
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The Use of ECG Body Surface Mapping in the Early Stages of Myocardial Infarction
The goal of this work was to develop an ECG Body Surface Mapping system and use it in patients in the early stages of myocardial infarction. Treatment with intracoronary streptokinase provided an opportunity to obtain a correlation between occluded artery and mapping findings, I a time frame where …
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Surface mapping based on the correlated emission of ions and electrons from hypervelocity C60 impacts
High resolution mapping of molecular species, specifically sub-micrometer spatial resolution mapping, is at the forefront of recent interest in Secondary Ion Mass Spectrometry (SIMS). Large projectiles, e.g. C60, Au400, display high quasi-molecular ion yields with reduced fragment ion yields …
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A bacterial algorithm for surface mapping using a Markov modulated Markov chain model of bacterial chemotaxis
… In this thesis we introduce an algorithm for surface mapping, which tracks the motion of a bacteria-like software agent (based on a low-level model of the biochemical network responsible for chemotaxis) on a surface or objective function. Towards that end, a discrete Markov modulated Markov …
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Virtual source aperture ultrasonic imaging for non destructive testing
… different propagation modes. 2 • Creation of a surface mapping algorithm for VSA inspections of components with nonplanar surfaces (complex geometry). The FMC algorithm provides the highest quality images overall. However, for a relatively small loss (a few dB) in image quality, much higher …
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Combinatorial models for surface and free group symmetries
… Harvey allows combinatorial representation of a surface mapping class group by describing its action on simple closed curves. Similar complexes of spheres, free factors, and free splittings allow combinatorial representation of the automorphisms of a free group. We consider a Birman exact …
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Impervious Surfaces Mapping Using High Resolution Satellite Imagery
In recent years, impervious surfaces have emerged not only as an indicator of the degree of urbanization, but also as an indicator of environmental quality. As impervious surface area increases, storm water runoff increases in velocity, quantity, temperature and pollution load. Any of these …
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Gravity profile evaluation of geological cross-sections through the Southern Appalachians in Frederick County, Virginia
… Frederick County, Virginia is known mostly from surface mapping. Based on this work are interpretations of the subsurface geology including cross sections which have been constrained by the surface geology and by the method of area balancing based upon palinspastic reconstruction. With the intent …
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High resolution, in-situ studies of seawater carbonate chemistry and carbon cycling in coastal systems using CHANnelized Optical System II
… to tropical storm and nor’easter systems. Towed surface mapping deployments across Waquoit Bay, MA, highlighted the export of DIC from salt marshes through tidal water. High resolution (<100 m) data collected during ROV deployments over deep coral mounds on the West Florida Slope revealed a much …
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High resolution, in-situ studies of seawater carbonate chemistry and carbon cycling in coastal systems using CHANnelized Optical System II
… to tropical storm and nor’easter systems. Towed surface mapping deployments across Waquoit Bay, MA, highlighted the export of DIC from salt marshes through tidal water. High resolution (<100 m) data collected during ROV deployments over deep coral mounds on the West Florida Slope revealed a much …
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Simultaneous Three-Dimensional Mapping and Geolocation of Road Surface
This thesis paper presents a simultaneous 3D mapping and geolocation of road surface technique that combines local road surface mapping and global camera localization. The local road surface is generated by structure from motion (SFM) with multiple views and optimized by Bundle Adjustment (BA). A …
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Signal processing in biological cells : proteins, networks, and models
… considered in a preliminary way by presenting a surface mapping algorithm based on bacterial chemotaxis.
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Rotation studies in fusion plasmas via imaging X-ray crystal spectroscopy
… advantage of toroidal symmetry and magnetic flux surface mapping it is possible to perform spectral tomography with a single fan of views. This combination of spatially resolved spectra and tomographic techniques has allowed for local measurement of a number of plasma parameters from line …
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Cenozoic Evolution of the Gold Creek Basin, Western Montana: Mapping and Documenting the Geology of the Rock Creek Lake 7.5' USGS Quadrangle
This thesis presents results from 1:24,000 scale surface mapping and related analysis of geology within the Rock Creek Lake 7.5’ USGS Quadrangle in western Montana. The purpose of this study is to 1) document the Cenozoic structural evolution and sedimentary fill record associated with tectonic …
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Cenozoic Evolution of the Gold Creek Basin, Western Montana: Mapping and Documenting the Geology of the Rock Creek Lake 7.5' USGS Quadrangle
This thesis presents results from 1:24,000 scale surface mapping and related analysis of geology within the Rock Creek Lake 7.5’ USGS Quadrangle in western Montana. The purpose of this study is to 1) document the Cenozoic structural evolution and sedimentary fill record associated with tectonic …
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Geology of the Roberts Hill area in the Hudson Valley fold-thrust belt, Greene County, eastern New York
… at a depth of several hundred meters below the surface. Mapping of a 5 km-long segment of the HVB that includes Roberts Hill, near the belt's northern end (17 km NNE of Catskill), was conducted to characterize how the HVB changes progressively to the north. This mapping reveals a duplex …
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