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 36 for “"Water Monitoring"”.
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Wireless sensor network for ground-water monitoring
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Evaluation of filter pack dewatering on Voc concentrations in a simulated low-yield monitoring well
… to investigate the physical process of dewatering the filter-pack of a low-yield ground-water monitoring well and determine if this process effects the concentration of dissolved volatile organic compounds (VOCs). It was hypothesized that losses of VOCs would be observed as a result of an …
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Mapping and Modeling Chlorophyll-a Concentrations in the Lake Manassas Reservoir Using Landsat Thematic Mapper Satellite Imagery
Carried out in collaboration with the Occoquan Water Monitoring Lab, this thesis presents the results of research that sought to ascertain the spatial distribution of chlorophyll-a concentrations in the Lake Manassas Reservoir using a combination of Landsat TM satellite imagery and ground based …
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Divergent Selection for Water Conversion Ratio in Broiler Populations
<p>Water scarcity is a global reality and with the anticipated population growth, freshwater resources will be further strained to meet both human needs and agriculture applications. To ensure a water sustainable and food secure future, all aspects of agriculture must become more efficient. Two …
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The Economic Impact in Stanislaus and San Joaquin Counties if a Fruit and Vegetable Processor Left as a Result of Changes in the Food Processing Byproduce Use Program
… that the program negatively impacts local groundwater. The Regional Water Quality Control Board proposed that the County institute water monitoring which would increase program expenses. In response to this proposal, participants investigated the impact of the cost increase and some have …
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Filling Conservation Gaps For Gulf Sturgeon (Acipenser desotoi) Using Specialized Acoustic Transmitters
… Acoustic telemetry has been a common method of monitoring GS; however, due to data from this methodology being presence-absence, inferences must be made on why GS are where they are and what they are experiencing there. Recent innovations in acoustic transmitters, such as InnovaSea<sup>TM</sup> …
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Bivalve molluscs as environmental monitors and tools for sustainable water management
Freshwater environments are capable of providing a wide range of vital ecosystem services, from basic provision of drinking water to energy production, waste removal to recreation. Well-managed water resources allow such precious services to be preserved. However, anthropogenic influences have led …
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Current Ground Motions in Montgomery, West Liberty, and Northern Harris Counties Derived from Continuous GPS Motions
… (< 3 mm/ year) as a result of enforced groundwater regulations. Slight land rebound has been observed along the Houston Ship Channel area since 2005. However, GPS observations indicate that subsidence rates over about 2 cm/year are occurring in the southern part of Montgomery county and the …
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Multivariate Analysis of Canadian Water Quality Data
Physical-chemical water quality data from lotic water monitoring sites across Canada were integrated into one dataset. Two overlapping matrices of data were analyzed with principal component analysis (PCA) and cluster analysis to uncover structure and patterns in the data. The first matrix (Matrix …
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Benthic Community Responses to Hypoxic Conditions in the Lower Rappahannock River, Virginia
… 15, 20, and 25 m) extending upwards from the deepwater Virginia Benthic Biological Monitoring Station LE3.4 located in the deep basin just inside the mouth of the Rappahannock River. Infaunal species diversity, richness, biomass, and density were measured along with the vertical depth distribution …
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Chip-Scale Gas Chromatography
… applications such as breath analysis and water monitoring is also demonstrated. Moreover, a nanotechnology based scheme for enhancing the adsorption capacity of the microfabricated pre-concentrator is also described.
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Three-Dimensional Passivated-Electrode Insulator-Based Dielectrophoresis (3D-PiDEP)
The focus of this research is the isolation of waterborne pathogens which are one of the grand challenges to human health, costing the lives of about 2.5 million people worldwide each year. The aim was to develop new microfluidic techniques for selectively concentrating and detecting waterborne …
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A Modified Bayesian Power Prior Approach with Applications in Water Quality Evaluation
… an issue frequently encountered in environmental water quality evaluation. Many times, the sample size of water monitoring data is too small to have adequate power. Here, we present a Bayesian power prior approach by incorporating the current data and historical data and/or the data collected at …
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Novel Time-Integrated Quantification of Sediment-Associated Fecal Indicator Bacteria in Rural Alabama Creek with Straight Pipes
… periodic grab sampling to monitor surface water fecal contamination. While technically simple, grab samples alone are inadequate to monitor enteric pathogens in a body of water due to the highly variable nature of surface water microbes. We present the novel use of the bi-directional …
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Ground Water Flow and Water Resources Investigation of the Auburn, Summers and Shakertown Springs Karst Ground Water Basins, Logan and Simpson Counties, Kentucky
… springs, Auburn and Summers Springs, to meet its water requirements. Besides being extremely vulnerable to contamination, the springs often discharge and insufficient volume of water needed for public consumption and dilution of the City’s treated wastewater. Thus the City wishes to find an …
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DYNAMICS OF GLOBAL SURFACE WATER 1999 - PRESENT
Inland surface waters are critical to life, supplying fresh water and habitat, but are constantly in flux. There have been considerable advances in surface water monitoring over the last decade, though the extent of surface water has not been well-quantified per international reporting standards. …
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Biodegradation of Fuel Oxygenates in Northeastern United States Aquifers with an Analysis of Underground Storage Tank Leaks
… spills impacting subsurface soils and groundwater. The success of this method has depended, for the most part, on the biodegradation of those gasoline constituents that dissolve into groundwater and transport with the groundwater most readily.</p> <p>One of the most mobile components of …
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Impact of Animal Waste Best Management Practices on the Bacteriological Quality of Surface Water
An extensive 10 year monitoring project was initiated in 1986 to examine the effects of a combination of BMPs on surface water quality within a watershed with complex land use. This research specifically examined bacteriological water quality and BMP impacts. Bimonthly grab samples were collected …
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Investigation and development of titanium nitride solid-state potentiometric pH sensor
… parameter in various fields like, drinking water monitoring, food preparation, biomedical and environmental applications. The most common device for pH sensing is the conventional pH glass electrode. While glass electrodes have several advantages, such as Nernstian sensitivity, superior ion …
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