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 20 of 5974 for “"Removal"”.
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Microbial contaminant removal and alternative nitrogen removal pathways in denitrifying bioreactors
… and low-cost technology for the effective removal of nitrogen (N) from water by enhancing denitrification (i.e. the bacterial conversion of nitrate [NO3-] to N gas). To date, studies on denitrifying bioreactors have mainly focused on the ability of, and factors influencing, the removal of …
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Binder removal in ceramics
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1990.
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The Investigation of Nitrite Accumulation and Biological Phosphorus Removal in an Intermittently Aerated Process Combining Shortcut Nitrogen Removal and Sidestream Biological Phosphorus Removal
… Road Sanitation District's biological nutrient removal pilot, located at the Chesapeake-Elizabeth WWTP in Virginia Beach, VA. The pilot is operated in an A/B process with a high-rate, carbon-diverting A-stage, followed by a biological nitrogen removal B-stage containing four intermittently …
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Virus Removal by Resinous Sorbents
Made available in DSpace on 2015-05-12T22:37:15Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511717.PDF: 6745005 bytes, checksum: b356d29bba38e0e2f7fc9d16a05f3826 (MD5) Previous issue date: 1974
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Virus Removal by Chemical Coagulation
Made available in DSpace on 2014-12-08T23:57:20Z (GMT). No. of bitstreams: 1 7013275.pdf: 3885482 bytes, checksum: 851571426cc61690afba6997d0ef8d5a (MD5) Previous issue date: 1969
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Exploring constraint removal motion planners
… cover solution. We introduce the notion of removal importance for obstacles and the family of iterative obstacle removing RRTs (IOR-RRTs). This family of algorithms operate similarly to the RRT but iteratively tolerate more collisions in trying to identify a path. One member of the family …
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A system for heparin removal
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1985.
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Motion blur removal from photographs
One of the long-standing challenges in photography is motion blur. Blur artifacts are generated from relative motion between a camera and a scene during exposure. While blur can be reduced by using a shorter exposure, this comes at an unavoidable trade-off with increased noise. Therefore, it is …
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Mechanism study of virus removal in membrane filtration and the application to improve virus removal
… outbreaks of virus infection without sufficient removal. Membrane bioreactor (MBR) has shown its promise to remove virus in municipal wastewater treatment, but the major concern is the trade-off between the water permeate flux and the virus removal efficiency. The objective of this study is to …
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Grease removal by a completely mixed activated sludge plant and methods for enhancing grease removal
… of blending and the addition of a surfactant on removal efficiencies were determined. Blended and unblended raw sewage containing grease was studied to obtain a comparison between the removal efficiencies by organisms acclimated to a synthetic substrate and organisms naturally present in raw …
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Effects of Integrated Fixed Film Activated Sludge on nitrogen removal in biological nutrient removal systems
… in a bench scale biological nutrient removal (BNR) process configured as a Virginia Initiative Project (VIP) process. The IFAS systems consisted of a sponge - like biomass support system (Captor) operated in the aerobic zone of two independent treatment trains, and a fibrous biomass …
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Removal of Biofilm through Controlled Cavitation
… has to be consideration towards prevention and removal of bacterial contamination. Bacterial contamination or rather degradation of materials was considered of negligible importance. Bacterial degradation can be serious for long-term manned space mission, more so because there is no way to …
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The Impacts of Road Capacity Removal
… ratios to increase to a critical level. The pre-removal traffic distribution was distorted in the case studies, with high V/C ratios on freeways and low V/C ratios on streets. Removing the freeways caused a more balanced distribution in some cases; however the exact nature of the redistribution …
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Artifact removal in digital retinal images
… systems.;This work aims to develop an artifact removal strategy able to improve the effectiveness of retinal image grading, in particular for retinal feature segmentation. First, a large group of statistical parameters designed to measure image quality have been selected from the literature. A …
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