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 204 for “"Long-Term Monitoring"”.
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Long-Term Monitoring and Evaluation of the Varina-Enon Bridge
… bridge by inspectors promoted a study regarding long-term prestress losses in the structure. For understanding and sustaining the structure throughout its remaining service life, accurately quantifying prestress losses is important. Two approaches are used to predict long-term prestress losses on …
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A tailored biocompatible neural interface for long term monitoring in neural networks
… that can record from neurons in the brain for long periods of time will be of great importance to unravel how the brain accomplishes its functions. However, current electrodes usually cause significant glia reactions and loss of neurons within the adjacent brain parenchyma. To address this …
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Long-term monitoring of vegetation dynamics in the Goegap Nature Reserve, Namaqualand, South Africa
… were removed and the reserve fenced in 1969, a long-term monitoring project was initiated to record possible vegetation changes under the reduced grazing pressure. The first monitoring was done in 1974 when two line transects, of 1 km each, were surveyed. These surveys have been repeated …
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Optimizing a long-term monitoring program to track toxic cyanobacteria blooms in a Great Lakes estuary
… to establish comprehensive but resourceful monitoring of cHAB-relevant data. We aimed to answer several questions in an effort to optimize future monitoring: (1) What are the critical environmental parameters that should be measured, and how do environmental conditions in the SLRE relate to …
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Development of an implantable sensor for continuous real-time long-term monitoring of soft tissue biomechanics
… and provide in situ, in vivo, real-time, long-term monitoring of soft tissue biomechanics. The initial goal is to create a functional sensor front-end that can differentiate materials of different stiffness. As this project is to continue beyond the thesis, this thesis will present the …
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Ecosystem impacts of variable recruitment in Antarctic krill investigated with long-term monitoring and archived ADCP backscatter data
… of the western Antarctic Peninsula. I use long-term ecological monitoring data to examine the impact of highly variable krill recruitment on a krill predator population, and I use archived backscatter data from an Acoustic Doppler Current Profiler (ADCP) to investigate biotic and abiotic …
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Effective Prestress Evaluation of the Varina-Enon Bridge Using a Long-Term Monitoring System and Finite Element Model
… in July of 2012 that prompted concerns regarding long-term prestress losses in the structure. Prestress losses could impact the future performance, serviceability, and flexural strength of the bridge. Accurately quantifying prestress losses is critical for understanding and maintaining the …
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Spatiotemporal variability in Antarctic krill (Euphausia superba) around South Georgia from Antarctic fur seal (Arctocephalus gazella) diets at two long term monitoring sites
… gazella (Peters, 1875). This study compares two long-term datasets (2008-2021) of Antarctic fur seal diet from Bird Island and King Edward Point, South Georgia, to investigate year-round krill dynamics. Foraging tracks from breeding female fur seals demonstrated that seals from the two sites …
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Development of a Field Monitoring System for the Northside Drive Bridge
… aims to create a system for real-time structural monitoring of bridges, ultimately offering a reliable method to accurately estimate a bridge’s remaining fatigue life. Standard procedures exist to calculate the remaining fatigue life of steel bridges. However, such procedures rely on conservative …
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Design and evaluation of iCalm : a novel, wrist-worn, low-power, low-cost, wireless physiological sensor module
… of the ambulatory electrocardiogram for long-term physiological monitoring has lead to the development of many new, compact sensors that have been designed with form factor and user comfort in mind. Nevertheless, there currently is no single sensor module that would be ideal to use for …
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Methods for Generalized Low-Dimensional EEG Analysis Using Transfer Learning
… nature make it infeasible for any form of long-term monitoring. It requires patients to sleep in a hospital setting for several nights while their EEG and other vitals are continuously recorded, after which a trained human clinician must manually score every 30-second block in the entire …
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Long-term properties of X-ray binaries in the magellanic clouds
Long-term variability in all types of X-ray binaries is a well established characteristic, but due to observation limitations and lack of long-term monitoring capability these variations have not been studied before in a systematic way. In this thesis, we exploit the ~ 16 yr optical light curves …
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A Quantitative Survey of the Freshwater Mussel Fauna in the Powell River of Virginia and Tennessee, and Life History Study of Two Endangered Species, Quadrula sparsa and Quadrula intermedia
… and quantitative sampling was conducted along a 165 km reach of the river from PRKM 269.4 near Dryden, VA to PRKM 104.8 near Harrogate, TN. Twenty-nine species were observed throughout the entire river, and the highest diversity of 23 species was collected at PRKM 152.6. Mussel abundances …
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Developing a cost-effective monitoring strategy for coastal cetaceans
… conservation importance through Passive Acoustic Monitoring (PAM).The harbour porpoise Phocoena phocoena was found to be the most commonly detected cetacean in Northern Irish waters exhibiting a persistent, but non-uniform distribution. The temporal distribution of this species, monitored in the …
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Parameters affecting interferometric coherence and implications for long-term operational monitoring of mining-induced surface deformation
… and the environment. Consequently, the need for long-term operational monitoring systems exists. Traditional field-based measurements are point-based meaning that the full extent of deforming areas is poorly understood. Field-based techniques are also labour intensive if large areas are to be …
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Baited remote underwater video survey of reef fish in the Stilbaai marine protected area, with an assessment of monitoring requirements
Long-term monitoring of changes in species abundance and community composition within marine protected areas (MPAs) is essential to assess whether conservation goals are being reached. The costs, logistics and sampling biases inherent to traditional monitoring methods limit sustainable monitoring …
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Establishment of permanent plots and analysis of woody vegetation in the Tennessee River Gorge, Marion and Hamilton Counties, Tennessee
… the TRG. Permanent vegetation plots for the long-term study of 13 of these communities were established in summer 2009 in order to fulfill three goals. The first goal was to provide baseline data for long-term monitoring through establishing and surveying 100 plots. The second goal was to …
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Evaluating the use of Sr, Pb, and U isotopes for fingerprinting surface and groundwaters in southern New Hampshire
… southern New Hampshire requires new methods for monitoring exploitation. In a pilot study, surface water and groundwater samples from southern New Hampshire were analyzed for Sr, Pb, and U isotopes to test if they could be used to distinguish between different reservoirs (surface waters, bedrock …
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A Re-Evaluation of the US EPA Radon Risk Categorization for Unicoi County, Tennessee.
… conducted using in-home radon concentrations, determined in a long-term monitoring study. Radon concentrations were measured in 69 homes using Electret Passive Environmental Radon Monitors (E-PERM’s), following standard methods. Radon concentrations determined in this study (avg. 4.03 ± 3.04) …
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