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 14 of 14 for “"Direct water"”.
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Fog Harvesting: Inspired by Spider Silk
The water crisis has been an increasing challenge in some places in the world. One proposed solution that has drawn lots of attention is fog harvesting. A commonly used fog collector is a vertical mesh, usually made of poly materials. Small water droplets can easily get pinned and quick evaporation …
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A water and greenhouse gas inventory for hygroscopic and conventional evaporative building-scale cooling systems
Freshwater scarcity is a major threat to the resilience of our society, and the challenges are only being exacerbated by the worsening impacts of climate change. The U.S. Department of Defense's Environmental Security Technology Certification Program demonstrated a novel heating, ventilation, and …
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Honeycomb structured porous films from different polymer architectures - preparation, mechanism, analysis and post-treatment
… cold-stage casting technique, casting on water technique and emulsion casting technique all based in either direct water introduction to the system or indirect condensation from the environment showed to be viable options for casting of high quality porous materials. The control and study …
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A Hydrodynamic Sensory Antenna Used By Killifish for Nocturnal Hunting
… sensitivity and improve the detection of directionality. The surfacefeeding killifish Aplocheilus lineatus is able to hunt in darkness by detecting surface capillary waves with the lateral-line system atop its head. This cephalic lateral line consists of 18 stereotyped mechanosensitive …
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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 …
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Assessment of water footprint for better water management in Oshana region, Namibia
Researchers have created a variety of water footprint concepts and technologies in response to growing concerns about the pressure on the world's water resources. Water footprint involves the direct and indirect water use of a consumer or a product. This study, therefore, examines the water …
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Impacts of reducing shipboard NOx̳ and SOx̳ emissions on vessel performance
… gas scrubbers, and four pre-combustion systems, direct water injection (DWI), fuel-water emulsification, exhaust gas recycle (EGR) and scavenge air moistening (SAM). The published performance impacts are applied to the vessels traveling on a hypothetical route comparing new transit times and …
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An analysis of water pricing and consumption variations within the occupied West Bank
International disputes over access to water resources can act as a catalyst for conflict or cooperation amongst nations. In the case of Israel and the occupied West Bank, water conflict further exacerbates preexisting political tension, and yet a peaceful and equitable solution between these …
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Control configured design for smooth, highly-maneuverable, underwater vehicles
… the development of a new type of robotic underwater vehicle designed specifically for the inspection of critical infrastructures such as boiling water reactor nuclear power plants. These applications require vehicles that can access confined areas, maneuver precisely, and move easily in several …
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The blue city: Urban metabolism and the energy-water nexus
… an increased demand for resources including water, food, and energy. The study of resource consumption in cities and urban environments, therefore, offers potential for conservation and efficiency increases. Water resources are integral to the necessary functioning of the city and its future …
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Fate and Transport of Endocrine Disrupting Compounds during Wastewater Treatment: The Role of Colloidal and Particulate Material
… (EDCs) in treated effluents from biological wastewater treatment facilities has prompted wide-spread interest in the behavior of these contaminants during the activated sludge process. The yeast-estrogen screen (YES) was used to quantify the estrogenic activity of samples taken from different …