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Land-Sea Connection Of Microplastic Fiber Pollution In Frenchman Bay, Maine, Grace A. Johnson
Land-Sea Connection Of Microplastic Fiber Pollution In Frenchman Bay, Maine, Grace A. Johnson
Electronic Theses and Dissertations
Global plastic production has been increasing over the past 50 years and is causing an increase in plastic waste entering the oceans. Plastic in the ocean is broken down into microplastics by a variety of physical, chemical, and biological processes. This study investigates the extent and potential sources of microplastic fiber pollution in Frenchman Bay, Maine, a coastal bay with complex geomorphology, numerous estuaries and many small tributaries that bring freshwater into it. Frenchman Bay is an important factor in Maine’s economy through its impact on tourism and commercial fishing. It is also a semi-sheltered coastal bay with some freshwater …
Use Of Gis To Find Optimum Locations For Anaerobic Digestion Or Composting Facilities In Maine, Usha Humagain
Use Of Gis To Find Optimum Locations For Anaerobic Digestion Or Composting Facilities In Maine, Usha Humagain
Electronic Theses and Dissertations
As per US EPA, in 2017, 41 million tons of food waste was generated, but only 6.3% was diverted from landfills (US EPA, 2020). When landfilled or incinerated, organic waste (food waste, sludge, manure, agricultural waste) causes environmental pollution through greenhouse gas emissions, land, water, and air pollution. In contrast, if we compost or digest organic waste, we can generate soil additives and a mixture of methane and carbon dioxide gas to produce electricity or energy. Both digestion and composting reduce greenhouse gas emissions, improve the land through additives, and boost the economy. Many countries are adopting anaerobic digestion and …
Design, Optimization, And Testing Of A Cross-Flow Tidal Turbine, Megan Colleen Swanger
Design, Optimization, And Testing Of A Cross-Flow Tidal Turbine, Megan Colleen Swanger
Electronic Theses and Dissertations
This thesis is a summary of testing conducted with a Darrieus style cross-flow tidal turbine. Many locations around the world have locations suitable for tidal turbine energy, including the Cobscook Bay in Eastport, Maine. Cross-flow turbines are likely to have a smaller impact on the environment compared to axial flow turbines due to their operation at lower tip speed ratios. Since very little experimental data is available presently for cross-flow turbines, this study provides an expansive set of performance data for two NACA series blade profiles of the same chord length. One blade profile was used in two different orientations …
Effects Of Frost Heave On A Soil Nail Wall In Brunswick, Maine, Sandra Mcrae Duchesne
Effects Of Frost Heave On A Soil Nail Wall In Brunswick, Maine, Sandra Mcrae Duchesne
Electronic Theses and Dissertations
Soil nail walls have been used as retaining structures worldwide since the early 1970s. The technology is particularly well suited for constructing walls in areas with limited overhead clearance and maneuvering room for heavy equipment, such as highway bridge underpasses. However, designers have been reluctant to experiment with soil nailing in areas with cold-weather climates and frost-susceptible soils, due to the lack of quantifiable data on the behavior of these walls when subjected to freezing conditions. The University of Maine collaborated with the Maine Department of Transportation (MDOT) in a research initiative on the first soil nail wall project in …
The Study Of Relief Map Construction And The Construction Of A Relief Map Of The Mt. Katahdin Area In Maine, Winston Churchill Robbins
The Study Of Relief Map Construction And The Construction Of A Relief Map Of The Mt. Katahdin Area In Maine, Winston Churchill Robbins
Electronic Theses and Dissertations
The project of the construction of a relief map of the Mt. Katahdin area is a step toward the construction of a relief map of the State, by serving to create added interest in such a project and to solve some of the technical problems. The Mt. Katahdin area was chosen for this project because topographical data was available for building a relief map of Maine’s most prominent topographic feature and because of the familiarity of the writer with this section.
An Investigation Of The Suitability Of Pinus And Chamaecyparis From Fukien Province, China For Pulp And Paper Manufacture, Tsung Ho Wang
An Investigation Of The Suitability Of Pinus And Chamaecyparis From Fukien Province, China For Pulp And Paper Manufacture, Tsung Ho Wang
Electronic Theses and Dissertations
No abstract provided.