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 465 for “"by products"”.
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Disinfection by-products and prenatal development
… have suggested modes of action for disinfection by-product (DBP) toxicity or teratogenicity, there is little evidence for a causal relationship between DBPs and induction of adverse outcomes in humans. This may be due, in part, to biases inherent to exposure assessment or analytical methodologies …
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American beef and its by-products
… (GMT). No. of bitstreams: 2 5959507.pdf: 3259417 bytes, checksum: 7c2acc33d7f4c37f8240538981773a07 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1899
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Granite By-Products for inverted pavement technique
As mentioned by Sardinia Region: ''Sustainable Development is what satisfies present's needs without shattering those of future generations, thanks to smart use of environmental resources and without waists''. This research aims to use a current resource available in high quantities in Sardinia to …
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Energy from sugarcane by-products : analysis for Kenya
The Kenyan sugar industry continues to face the task of being competitive in a liberalized global economy that has witnessed a trend in declining sugar prices and increasing local production costs. This dissertation attempts to investigate possible options that could assist Kenyan sugar industry to …
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Remediation of Abandoned Mines Using Coal Combustion By-products
… investigate the effectiveness of coal combustion by-products (CCBs) in encapsulation of pyrite to remediate AMD. To meet this objective, CCB-based grouts were tested for spread, slump, bleed, and strength. Pyrite was coated with grouts and laboratory tests were performed to evaluate the …
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Pavement sustainability optimization using quarry by-products and geosynthetics
… construction. The increased aggregate demand by the construction industry has resulted in increased production of quarry by-products (QB) and overall energy consumption because of the production of aggregates. The use of geosynthetics and QB in unbound material pavement applications can …
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Chlorine dioxide and by-products in water distribution systems
… States. Chlorine dioxide is associated with its byproducts chlorite and chlorate. Chlorine dioxide, chlorine, chlorite and chlorate were sampled in four distribution systems where chlorine dioxide is used for disinfection purposes: Charleston, WV, Columbus, GA, New Castle, PA, and Skagit, WA. The …
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Supercritical Technologies for the Valorization of Wine Industry By-Products
… study aim at the valorization of wine industry by products; particularly on the extraction and characterization of grape seeds oil using supercritical CO2 (SC-CO2) and polyphenols from grape skins and defatted grape seeds using subcritical water (SW) and then, modeling of the kinetics of …
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Biopeptides from food by-products: Production, fractionation and bioactivity assessment
Es bien conocida la importante generación de residuos de la industria alimentaria y la importancia de llevar a cabo procesos y desarrollar técnicas y usos finales de dichos sub-productos con el fin de avanzar hacia una industria alimentaria sostenible. En esta Tesis Doctoral se plantean procesos de …
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Relationship Between Metabolic By-Products and Nervous System Failure/Fatigue
… there were any relationships between metabolic by-products and EMG characteristics following exercise. The first investigation sought to determine changes in EMG M-wave amplitude of the gastrocnemius following the calf raise exercise. There were no significant changes in M-wave EMG amplitude …
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EXPLOITATION OF ANTIOXIDANT BIOACTIVE COMPOUNDS FROM AGRO-INDUSTRIAL BY-PRODUCTS
… to investigate how different agro-industrial by-products can be exploited to obtain extracts enriched with bioactive compounds that possess antioxidant and antiradical properties. For this purpose, plant parts that are generally discarded because they are recognized as waste or as a production …
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Comparative Cytotoxicity and Genotoxicity of Drinking Water Disinfection by -Products
… cells. The difference in the responses to DBPs by bacterial and mammalian cells suggests that the relative risks based on Salmonella alone should be questioned. The in vitro microplate based bacterial and mammalian assays developed and used in this research can be employed for screening other …
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Kinetics and Speciation of Brominated Disinfection by -Products During Ozonation
… phenoxides and HOBr. Bromination of phenols by HOBr was found to be approximately 1000 times faster than chlorination by HOCl. Thus bromination of NOM can be a major sink of bromine species even under a low bromide condition. The new method was also applied to evaluate the kinetics of the …
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Isolating Antigenotoxic Components and Antioxidants From Commercial Corn Processing by -Products
The identification and isolation of antimutagens and antioxidants are very important for setting up prevention strategies for environmental toxicants. Such research may lead to a future where agricultural crops would be raised for both their pharmaceutical and agronomic value. Opening a new niche …
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Multivariate Analysis of Disinfection By-products Formation in Drinking Water Distribution Systems
… residuals decay and unintended disinfection by-product (DBP) formations, which are associated with increased adverse health outcomes. To improve drinking water quality, in-depth understandings of disinfectant stability are required. A systematic literature review was undertaken to investigate …
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Chlorination disinfection by-products in drinking water and risk of pancreatic cancer.
… studied the effect of chlorination disinfection by-products (CDBPs) in drinking water on the risk of developing pancreatic cancer. The study was based on the case-control component of the National Enhanced Cancer Surveillance System. Incident cases and frequency-matched population controls …
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Drinking water disinfection by-products detection, formation and the precursors removal study
… are two groups of commonly found disinfection by-products (DBPs). Iodinated THMs and HAAs were observed after disinfection of water containing high level of iodide and are proved to be more toxic than their corresponding chlorinated and brominated species. In the presented dissertation, a novel …
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Analysis and occurrence of disinfection by-products in fresh and salt water
… bromate are important toxic water disinfection by-products (DBPs) that the US Environmental Protection Agency (USEPA) regulates in drinking water. Iodoacetic acids and halonitromethanes (HNMs) are the unregulated emerging DBPs that have been recently found in the disinfected drinking waters, and …
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Separation and Characterization of Unknown Halogenated Disinfection by -Products in Drinking Water
By applying the technique of quantitative structure-activity relationships, the decomposition rate constants of six iodinated trihaloacetic acids were estimated. It is quite likely that dichloroiodoacetic acid and bromochloroiodoacetic acid may be found in some drinking waters.
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