Search for dissertations about: "removal rates"
Showing result 1 - 5 of 170 swedish dissertations containing the words removal rates.
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1. Colonoscopy : Introduction and development, completion rates, complications and cancer detection
Abstract : In a population-based study in the county of Södermanland, 6066 colonoscopies performed in 4304 patients from 1979 to 1995 inclusive were evaluated. As indications, bleeding increased and polyps and unclear x-ray findings decreased. Surveillance (cancer, polyps, colitis) was fairly stable. READ MORE
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2. Nitrogen removal in treatment wetlands : Factors influencing spatial and temporal variations
Abstract : Decreasing the nitrogen transport from land to surrounding seas is a major task throughout the world to limit eutrophication of the coastal areas. Several approaches are currently used, including the establishment of wetlands, to decrease the transport of nitrogen. READ MORE
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3. Aspects of oral implant technology and osseointegration
Abstract : Behandling med käkbensförankrade tandimplantat är en vanlig metod för att ersätta förlorade tänder hos helt och partiellt tandlösa patienter. Trots att implantatbehandling uppvisar en långsiktigt hög lyckande- och överlevnadsfrekvens (90–95% efter 10 år) så förekommer implantatförluster och marginal benförlust kring implantaten under det första året efter insättning och/eller belastning, vilket kan försämra det estetiska resultatet. READ MORE
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4. Through air drying : Thermographic studies of drying rates, drying non-uniformity and infrared assisted drying
Abstract : The removal of water is an integral part of papermaking. The drying process is responsible for a great share of the energy used in the paper machine. Premium grade tissue products are dried by through air drying. Large volumes of natural gas are burned to heat the air drawn through the paper web to achieve the drying. READ MORE
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5. Microbial nitrate removal from mining waters
Abstract : Mining activities cause high levels of nitrogen in the process water. The nitrogen originates from the blasting procedure, where undetonated explosives in the form of ammonium nitrate dissolve in the water. Part of the water is discharged to receiving water bodies where it may cause environmental problems. READ MORE