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 “"Welders"”.
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Aerosol Samplers Comparison: IOM Dual Sampler (Inhalable & Respirable) vs Conventional Methods for Assessing Welders Exposure to Manganese
Occupational exposure to airborne manganese (Mn) is currently determined using National Institute for Occupational Safety and Health (NIOSH) and Occupational Safety and Health Administration (OSHA) analytical methods for particulate not otherwise regulated. The Institute of Occupational Medicine …
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The development of welding fumes health risk assessment tool for automotive component related industries
… for a single constituent. However, in reality, welders are simultaneously exposed to multiple welding fume constituents at once. To fulfill this gap, welding fumes health index was developed by assigning doses rating and health risk rating to the multiple constituent of welding fumes and …
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Manganese and health in the welding environment
There are approximately 0.5 million full-time welders in the U.S., with even more workers welding intermittently. Over the past thirty years there has been increased interest in the effects of welding fume on the health of these workers. Manganese is an essential element in the making of all steel …
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The development of a low-cost welding simulator based on augmented reality
… potential applications, from training novice welders to generating synthetic data for various research and industrial purposes.
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A Proposed Algorithm for the Identification of Occupational COPD in a Cohort of Washington Workers
… workers, firefighters, truck drivers and welders, among others, and there was overlap in occupations and hazards between Occupational COPD groups. Conclusions: This comprehensive algorithm provides a framework for Occupational COPD surveillance and diagnosis and could be used to influence …
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OXIDATION AND REDUCTION SYNTHESIS OF SURFACE ENHANCED TITANIUM-BASED ELECTRODES FOR ELECTROLYTIC CAPACITORS
… for supplying power pulses, for example in spot welders. Titanium-based oxides with high dielectric constants are candidate for the dielectric layer in electrolytic capacitors. The research in the thesis focuses on fabrication methods to form surface-enhanced titanium-based electrodes with …
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Resource constrained scheduling problem at U.S. Naval Shipyards
… approximately thirty shops (e.g. electricians, welders, and pipefitters). The system complexity, the tight spaces, the operational nuclear reactor, the challenges inherent in repair, and resource competition all contribute to a dense integrated schedule. Minimizing the overall length of each …
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Winter Limnological Conditions in a PRAIRIE Pothole and the Application of Molecular Oxygen
… in 127,440 L o2 gas capacity tanks, rubber welders hose, and graphite air stones comprised the molecular oxygenation apparatus. Oxygenation employing 3 different strategies, resulted in 711,400 liters of oxygen gas being expended under the ice with few positive effects noted in reducing …
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Exposure, telomere length, and cancer risk
… on telomere length; in the second study 101 welders, 34 diesel-exposed workers and 127 controls were examined to elucidate the effect of exposure to particles on telomere length; in the third study 202 women exposed to arsenic via drinking water were analysed for effects of arsenic exposure …
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Ultrastructural characterization of ultraviolet induced corneal disease : an animal model
… and photokeratitis. "Snow blindness" and "arc welders eye" are further examples of acute ultraviolet damage specifically to the surface of the cornea. On the other hand, chronic exposure to ultraviolet radiation is thought to be responsible for pterygia, climatic droplet keratopathy Hill and …
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An evaluation of the AWS Entry Level Welder Training Program
1 PDF file (vi, 158 pages)
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Women In Wartime Shipyards: Operating A Drill Press Was Like Using An Egg Beater
<p>This research examines the duality of the roles of American women during World War II. The research draws upon oral histories, newspaper accounts and advertisements, music and films of the time, letters and family scrapbooks, and primary and secondary sources. Most prior research focuses on …