Sökning: "Ocean"
Visar resultat 1 - 5 av 458 avhandlingar innehållade ordet Ocean.
1. The Anthropocene Ocean : Risks and opportunities for global sustainability
Sammanfattning : Humans have become a dominant force of planetary change. This epoch, referred to as the Anthropocene, implies profound alterations to the Earth’s marine and terrestrial ecosystems upon which so many people depend. LÄS MER
2. Tracing pathways in the ocean circulation : A temperature and salinity perspective
Sammanfattning : The ocean circulation plays an essential role in our climate system. It redistributes heat, salt, carbon and other tracers across the globe, making the climate of Earth more moderate. This thesis targets density differences that are driving the ocean circulation. These differences are caused by changes in temperature and salinity. LÄS MER
3. Narrow-pore zeolites and zeolite-like adsorbents for CO2 separation
Sammanfattning : A range of porous solid adsorbents were synthesised and their ability to separate and capture carbon dioxide (CO2) from gas mixtures was examined. CO2 separation from flue gas – a type of exhaust gas from fossil fuel combustion that consists of CO2 mixed with mainly nitrogen and biogas (consists of CO2 mixed with mainly methane) were explicitly considered. LÄS MER
4. Ocean circulation in the Amundsen Sea, West Antarctica
Sammanfattning : The increase of mass loss from the Antarctic Ice Sheet is a significant contribution to global sea level rise. The most rapid changes are occurring in the Amundsen Sea area, where the thinning of the floating glaciers is assumed to be driven by the ocean. LÄS MER
5. Design and Optimization of CO2 sorbents for Point Source Emissions and Direct Air Capture
Sammanfattning : This thesis presents a comprehensive study on the design and optimization of CO2 sorbents, targeting two distinct applications: CO2 capture from point source emissions and Direct Air Capture (DAC). The research first introduces Na2HfO3 as a potential CO2 sorbent for point source emissions, using the molten salt effects of Na2CO3 and the thermal stability of HfO2. LÄS MER