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 “"Water quality -- Measurement."”.
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Smart-phone-based electrochemical sensor for environmental applications
… ionic sensor that performs electrochemical measurement by using audio jack of a smart phone. This platform was used to measure nitrate concentration using a few microliter liquid samples on field along with providing geospatial map locations through a wireless network. This compact MoboSens …
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AN INVESTIGATION OF SHORT RANGE ELECTROMAGNETIC WAVE COMMUNICATION FOR UNDERWATER ENVIRONMENTAL MONITORING UTILISING A SENSOR NETWORK PLATFORM
Current state of the art water communications systems rely on optical and acoustic propagation. But these have underperformed in many applications. Wireless Sensor Network (WSN) using radio communication underwater is state of the art. The frequency of operation and the antenna are the big …
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Metadata Analysis of the Montana Department of Environmental Quality's Reference Stream Project Datasets
… State of Montana between the natural science of water quality measurement and the actual practices to which water quality management research is put. These discordances can be the source of misunderstandings about the purposes and uses for which data were collected. Moreover, miscues regarding …
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Metadata Analysis of the Montana Department of Environmental Quality's Reference Stream Project Datasets
… State of Montana between the natural science of water quality measurement and the actual practices to which water quality management research is put. These discordances can be the source of misunderstandings about the purposes and uses for which data were collected. Moreover, miscues regarding …
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Using temperature profiles to investigate the hyporheic zone in an agricultural drainage ditch
… decades, there has been much research on ground water/surface water interaction and hyporheic zone processes in natural rivers and streams. Research into natural systems has revealed significant ground water/surface water interaction and a complex variability that depends primarily on surface …
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Effects of land use on biotic integrity in ridge and valley streams in the Chattanooga Metropolitan Area, Tennessee-Georgia
… and are part of the Nickajack Reservoir watershed in the Tennessee River system. Study sites were characterized in terms of water quality, habitat, and fish assemblages. Relationships among these features and land use, at both the riparian and watershed scales, were examined. A total of …
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Deep reinforcement learning for adaptive monitarizacion and patrolling of water resources with unmanned surface vehicles
… ecosystems and for human interest. Large water bodies such as lakes, rivers, and reservoirs deserve special attention as strategic resources for human development. However, monitoring these resources involves significant human efforts and high costs. The use of autonomous surface vehicles …
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Development of a Procedure to Evaluate Groundwater Quality and Potential Sources of Contamination in the East Texas Basin
… and anthropogenic contaminant sources of groundwater quality in the East Texas Basin. Four aquifers were studied, Sparta, Queen City, Carrizo and Wilcox. In this study, Carrizo- Wilcox is considered as one aquifer, and Sparta-Queen City as another. These aquifers were divided into depth …
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Storm Water System Monitoring for the Small Municipality Under Phase II of the National Pollutant Discharge Elimination System
Storm water quality can have a significant impact on receiving water bodies. The chief recipients of these impacts are aquatic life in the receiving water body and downstream water users. Over the last few decades, legislation, regulations, institutions and facilities have evolved to recognize the …
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Evaluation of the Chlorophyll/Fluorescence Sensor of the YSI Multiprobe: Comparison to an Acetone Extraction Procedure
The purpose of this study was to examine the suitability of the YSI model 6600 Environmental Monitoring System (multiprobe) for long term deployment at a site in Lewisville Lake, Texas. Specifically, agreement between a laboratory extraction procedure and the multiprobe chlorophyll/fluorescence …
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Water quality trends in the Eerste River, Western Cape, 1990 - 2005
… investigatge temporal and spatial trends in the water quality of the Eerste River between 1990 and 2005. The study results revealed that the major trends in the water quality of the Eerste River are more spatial than temporal.