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 51 for “"Area coverage"”.
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The macroecological distribution of avian functional diversity: environment, extinction risk and protected area coverage
… species are less likely to inhabit protected areas (12% of land surface) and analyses show they are associated with particular regions of trait space (those related to higher habitat strata, feeding at lower trophic levels and smaller body size) compared to better protected, wide-ranging …
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Coordinated Sensor-Based Area Coverage and Cooperative Localization of a Heterogeneous Fleet of Autonomous Surface Vessels (ASVs)
Sensor coverage with fleets of robots is a complex task requiring solutions to localization, communication, navigation and basic sensor coverage. Sensor coverage of large areas is a problem that occurs in a variety of different environments from terrestrial to aerial to aquatic. In this thesis we …
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Optical In-Process Monitoring Tools for Laser Powder Bed Fusion: Verifying Powder Area Coverage of a Layer Setup
… for quantifying a layer setup through powder area coverage. Several tests were performed to look at the camera repeatability across one or several locations by analyzing image intensity values in ImageJ. Another test was performed to determine if there was a linear correlation between layer …
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Thermal Characterization of Die-Attach Degradation in the Power MOSFET
… caused by changes in die-attach voided area. These experimental results and simulations can then be used to create predictions of the thermal performance of a particular power semiconductor module at various stages of die-attach fatigue. In the results and simulations presented, a …
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Seasonal and inter-annual variability of SST and chlorophyll-a off Angola
… a 5-day composite of SeaWiFS GAC (4.5 km 'Global Area Coverage') images. Such images were available on a format comparable with the Meteosat SST composite images and covered the period 1998 to 2004.
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Large-area lightweight organic photovoltaics
… of manufacturing techniques amenable for large-area coverage and material sets with sufficient mechanical resilience to withstand day-to-day human handling. Herein, we present vapor-deposited fabrication of large-area ultra-lightweight organic photovoltaics, reinforcement of such large-area …
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Fabrication and tribology of composite coatings incorporating solid lubricant micro-reservoirs
… Reservoir diameter (4 and 9 microm) and area coverage (2% and 10%) were the primary variables, and it was found that the larger diameter reservoirs (9 microm) and higher area coverage values (10%) were more beneficial in providing lubricant storage and replenishment in the wear track. …
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MIMO radar: signal processing, waveform design, and applications to synthetic aperture imaging
… techniques to improve the image quality and area-coverage rate of synthetic aperture imaging systems. A signal processing architecture for MIMO radar is used to understand the applicability of MIMO for synthetic aperture radar (SAR) and synthetic aperture sonar (SAS) systems. MIMO SAR/SAS is …
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Flexible and foldable single-crystalline silicon electronics for various applications
… approaches that enable electronic devices with area coverage, conformal electronics, mechanical properties, or geometrical form features that would be impossible to achieve using traditional, wafer-based technologies. This thesis presents the fabrications of three different ultrathin silicon …
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Distributed Target Detection and Coverage for Holonomic UAVs
… an uncovered target. In doing so, agents' search area is discretized into a grid, where the average percent coverage of each tile is monitored with respect to each agent's field-of-view. Once all agents are covering targets and the average area-coverage value stabilizes, PPD terminates. …
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Flexible in-pipe leak detection sensor module design and fabrication
… the pipe centerline along with the effective area coverage of the leak by the sensor. The results show robust performance under large variations.
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Reconfigurable satellite constellations for geo-spatially adaptive Earth observation missions
… monitoring capability from space. The wide-area coverage and fast responses provided ReCon can complement high-resolution imagery provided by UAS. A newly proposed ReCon framework improves the model fidelity of previous approaches by utilizing Satellite Tool Kit (STK) simulations and Earth …
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Application of Model-Based Systems Engineering (MBSE) to compare legacy and future forces in Mine Warfare (MIW) missions
… on two measures of effec-tiveness (MOEs): area coverage rate sustained (ACRS) and percent clearance of mines. The systems engineering (SE) approach used to address stakeholder needs identified foundational requirements and developed functional and physi-cal architectures for simulation in …
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Polarimetric SAR for the monitoring of agricultural crops
… to provide fine spatial resolution and a wide area coverage, both in day and night time and almost under all weather conditions, make it a key tool for agricultural applications, including the monitoring and the estimation of phenological stages of crops. The monitoring of crop phenology is …
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Commercialization potential of dye-sensitized mesoscopic solar cells
… threedimensional network provides high surface area coverage for the photogeneration process and percolation of charges. In the thesis, we will review the current research efforts to optimize the DSC performance and develop probable applications to complement existing solid-state photovoltaic …
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Interactions between currents and the spatial structure of aquatic vegetation
… is examined. Seagrass beds range in their coverage from continuous meadows, to spotty swaths dominated by discrete patches. The relationship between this area coverage and tidal currents, explained by the principles of percolation theory, helps describe why certain distributions of seagrass …
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Integration of hydraulic model (HEC-RAS) and geographical information system (GIS) in development flood evacuation center along Sembrong River sea
… of this study are to determine flood prone area of Sembrong River in two-dimensional (2D) view by using HEC-RAS, to evaluate the suitability of current location of evacuation centers and to develop a new evacuation center and its access route by using GIS. HEC-RAS was utilized to produce an …
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Atomic Oxygen Effects on Particulate Contamination and Short Beam Strength of Carbon Composites
… such as on solar panels; their large surface area therefore is a potential contamination source to sensitive components. The Space Environments and Testing Lab at California Polytechnic State University, San Luis Obispo (Cal Poly SLO) includes an apparatus that can simulate AO in the LEO …
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Measuring Accessibility to Primary Care Physicians in the Nashville Metropolitan Statistical Area
… prompted a government legislation to designate areas where shortage in the delivery of primary care services occurs. The implemented systems (e.g., HPSA, MUA, and MUP) analyze utilization of health services within confined administrative units and fail to account for spatial interactions that …
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NATURE-BASED SOLUTIONS FOR FLOOD RISK MITIGATION: MAPPING AND HYDROLOGICAL MODELING IN AN UNDER-RESOURCED URBAN AREA ON THE MISSISSIPPI GULF COAST
… communities. I also found that impervious area coverage, followed by precipitation, is heavily influential on flooding hazard in this area. I then investigated several NBS within a vulnerable parcel of concern to stakeholders, testing the efficacy of permeable pavement, infiltration …
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