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.
Results
Showing 1 to 19 of 19 for “"water testing"”.
-
Design and construction of a propeller open water testing apparatus and testing of a stereolithography 3D printed model propeller
… the design and construction of a propeller open water testing apparatus for educational and experimental use at MIT. This test apparatus was built as an inexpensive alternative to conducted in-house model scale marine propeller testing. A complimentary study was conducted to explore the process …
-
Bench Scale Analysis Of Experimental Fouling-resistent Low Pressure Reverse Osmosis Membranes Using High Organic Surface Water And Synthetic Colloidal Water
… membrane treatment for the production of potable water has become more prevalent in today's industry. As drinking water regulations become more stringent this trend is expected to continue. Widespread use is also a result of membrane treatment being the best available treatment in many cases. …
-
SH-3 helicopter/global positioning system integration analysis
… would only be possible after thorough over-water testing of the high dynamic set. The actual velocity accuracy of GPS receivers in a hovering helicopter is the main question yet to be answered. The overall mission effectiveness of the GPS equipped SH-3 Helicopter should be significantly …
-
Addressing produce safety educational resources for non- English speaking growers in the Midwest
… biological soil amendments, agricultural water testing, and visitor protocols; (2) culturally appropriate characters; (3) simple, clear language that resonates with the growers; and (4) dissemination through accessible platforms like YouTube and WhatsApp. Based on these findings, two …
-
Achieving Environmental Justice for the Community of Opportunity, Montana: An Assessment of Superfund Concerns
… residents have voiced concerns about their well water, windblown dust, and other issues since at least the late 1990s. Furthermore, the community has been subjected to ongoing environmental injustices: they feel they have been left to bear an unfair environmental burden without compensation and …
-
Achieving Environmental Justice for the Community of Opportunity, Montana: An Assessment of Superfund Concerns
… residents have voiced concerns about their well water, windblown dust, and other issues since at least the late 1990s. Furthermore, the community has been subjected to ongoing environmental injustices: they feel they have been left to bear an unfair environmental burden without compensation and …
-
Variations of Physical and Chemical Parameters Within a Shallow Wind Influenced Lake
… point for future developments in terms of water quality and useage of the defined area. Procedure. Lake Easter, Polk County, Iowa, was studied from April 18 to July 2, 1969. Samples of the water were taken from three sites and from the top and bottom water. Samples were tested for …
-
Multi-body Dynamics Simulation and Analysis of Wave-adaptive Modular Vessels
… with the final model being validated against on-water testing data from a 12-ft unmanned prototype WAM-V. The first of these simulations serves primarily as a tool to evaluate WAM-V™ response characteristics with respect to a variety of parametric variations. The modeling environment is …
-
The Kuils River multiple: versions of an urban river on the edge of Cape Town, South Africa
… and in turn shape the river. The management of water (in pipes and rivers) and the development of water infrastructure are deeply rooted in societal development agendas that, over time, have been embedded in discourses of empire, economic growth, state formation, sustainability and technological …
-
A field-based study of alternative microbial indicator tests for drinking water quality in Northern Ghana
Safe drinking water is essential for human survival, yet it is unavailable to over 1 billion of the world's people living in poverty (World Bank, 2009). The current methods used to identify drinking water sources are inadequate, with almost 40 percent of "safe" sources containing unsafe levels of …
-
Detection of Environmental Contaminants in Water Utilizing Raman Scanning for E. coli Phenotype Changes
… to quickly and accurately detect contaminants in water samples through phenotype changes in E. coli measured through SERS. Contaminated Luria-Bertani (LB) media was inoculated with LB with an OD600 of 1, grown for two hours, and then dried on a flat piece of aluminum foil. These samples were then …
-
The effects of environmental nickel toxicity upon survival, growth, reproduction, fecundity, and lifespan of nematodes Caenorhabditis elegans, Pristionchus pacificus, and Caenorhabditis briggsae
… species that have been used in sediment and water testing of contaminated environmental samples. Nematodes lend themselves perfectly to liquid and sediment assays due to their easy recovery, handling, distinction between larva and adults, and short life cycle. In this study, we used three …
-
Investigation of the Effect of Superhydrophobic Coatings on the Performance of Heat Exchangers
… they retained significant amounts of condensed water when they were used to cool air to below the dew point. This condensed water affected both the stability of the coatings and the resistance to air flow through the heat exchangers. An alternative approach to preparing superhydrophobic coatings …
-
Tailored water treatment in distributed wastewater reclamation: investigation of biological stability, and energy and nutrient recovery
Distributed non-potable water reclamation (DNWR) is emerging as a new model that couples local water resources with local users, tailoring local water treatment to the needs of the end-users. Yet, there are barriers that must be addressed—DNWR plants are likely to be near homes and businesses, and …
-
Relationships Between Hybrid Poplar Tree Extractives and Ground Water Contamination at a Phytoremediation Site
… (PAH) had entered the site soil and ground water. After planting, a seasonal ground water testing program began that monitored the progress of remediation by measuring the concentration of the 10 predominant PAHs in the contaminant plume: naphthalene, acenaphthylene, acenaphthene, fluorene, …
-
Beyond Water Regulation: Contamination of Private Wells, Citizen Science, and Corrosion of Household Plumbing
The US Safe Drinking Water Act (SDWA), established in 1974, has improved water quality nationwide through the introduction of maximum contaminant levels, source water protection, and treatment guidelines and requirements. Despite the obvious success many important water quality issues are not …
-
Developing a system to measure rheology of conditioned soil for soft-ground TBM tunneling
… need in infrastructure such as transportation, water, sewer, utilities, storage space, etc., the world has witnessed rapid expansion of the tunneling and underground construction industry in the past few decades. Among all tunnel construction methods, the growth of soft-ground tunneling using …
-
Green Technologies and Sensor Networks for BMP Evaluation in Stormwater Retention Ponds and Wetlands.
… is to examine and develop new techniques in stormwater Best Management Practices (BMP) for nutrient and erosion reduction and monitoring by incorporation of low impact green technologies and sensor networks. Previous research has found excessive nutrient loading of nitrogen and phosphorus species …