Essays about: "Gas Mass Composition"
Showing result 1 - 5 of 38 essays containing the words Gas Mass Composition.
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1. Selected PFAS in the water treatment at the waste-to-energy plant in Umeå : Investigating concentration and composition of selected PFAS in different water treatment steps
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : The present study investigated the changes in concentration and composition of five selected PFAS substances in the water treatment at the waste-to-energy plant in Umeå. The five PFAS were PFHxA, PFHpA, PFOA, PFHxS and PFOS. As PFAS exists in a variety of consumer products, they will to some extent end up in waste incineration. READ MORE
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2. Analysis of fatty acids in fatty acid-based herbicides by gas chromatography
University essay from Lunds universitet/Kemiska institutionenAbstract : Fatty acids-based herbicides are considered to be a green alternative to synthesized weed control products. However, the environmentally sustainable effect of those herbicides needs more investigation to be confirmed. READ MORE
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3. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli
University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserAbstract : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. READ MORE
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4. Properties of the Optical Hot Spots in the Circumstellar Ring of SN 1987A
University essay from KTH/FysikAbstract : The proximity of Supernova 1987A provides a great opportunity to study the aftermath of the impact of the ejecta with the dense clumps (observed as ”hot spots”) located in the equatorial circumstellar ring. This thesis examines the properties of the clumps by using Hubble Space Telescope optical imaging taken with the F625W and F675W broad filters between 1994 and 2022. READ MORE
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5. Forming wide-orbit planets via pebble accretion
University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionenAbstract : The possibility that detected substructures in protoplanetary disks, such as gaps, rings and cavities, are created by distant protoplanets has prompted an inquiry into the mechanism responsible for their formation. These wide-orbit young bodies are likely to form relatively rapidly in the outer regions of circumstellar disks. READ MORE