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Visar resultat 1 - 5 av 52 uppsatser som matchar ovanstående sökkriterier.
1. Methanobacterium cauma sp. nov., a hydrogenotrophic, halotolerant methanogen from an active serpintinization system at Chimaera seep
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : The archaeal branch of life represents some of the oldest life forms on Earth. Archaea are believed to have diverged from Prokaryotes roughly 3.5 billion years ago and it’s theorized that biological methane production started around this time as well. This would make methanogenesis one of the oldest metabolisms on our planet. LÄS MER
2. Possibilities of Reducing Internal Scrap Rates and Increase Scrap Recyclability of Dilute Copper Alloys from Vertical Upwards Continuous Cast (VUCC) Process
Master-uppsats, Lunds universitet/Centrum för analys och syntesSammanfattning : Copper and copper alloys are important material systems for the electrification of society. The high workability of the materials makes them appropriate in numerous different applications which require highly conductive properties. LÄS MER
3. CO2 Sequestration by Bio-Accelerated Silicate Weathering
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Human-caused emissions of CO2 and other greenhouse gases are an established reason for the climate changes that affect planet Earth. Negative emission technologies (NETs), for example, bio-accelerated silicate weathering bioreactors, seek to capture and store carbon from the atmosphere. LÄS MER
4. Forming wide-orbit planets via pebble accretion
Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionenSammanfattning : 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. LÄS MER
5. Bringing nuance back to the carbon offsetting debate : evidence of a transition, calls for a transformation
Master-uppsats, SLU/Dept. of Urban and Rural DevelopmentSammanfattning : Climate change caused by the increase in anthropogenic emissions is currently increasing the frequency and severity of extreme weather events globally (IPCC, 2022) which is having devastating impacts on humans and non-human living beings globally. Rapid and deep decarbonisation is required to achieve the goals of the Paris Agreement and ensure a safe and habitable planet for the future of humanity. LÄS MER