Sökning: "diffusion processes"
Visar resultat 11 - 15 av 150 uppsatser innehållade orden diffusion processes.
11. Numerical Simulations of Metal Recovery for Battery Recycling
Master-uppsats, KTH/ProcessteknologiSammanfattning : Den pågående elektrifieringen av transport och samhälle kräver utveckling av nya metoder för återvinning av batterier. Hydrometallurgi som fokuserar på selektiv kristallisation av metaller är ett intressant alternativ för dessa ändamål. Dessa system kan studeras genom modellering och simulering. LÄS MER
12. Tool to assess the cost of hydrogen considering its supply chain : A case study of Germany, France and Spain until 2030
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Hydrogen is envisioned to become a fundamental energy vector within the decarbonization of the energy systems. Despite already being employed in several industries, its production comes almost completely from processes based on fossil fuels. LÄS MER
13. Hawkes Processes on Socialand Mass Media: : A Causal Study of the #BlackLivesMatter Movement inthe Summer of 2020
Master-uppsats, Uppsala universitet/Statistik, AI och data scienceSammanfattning : In this work we study interactions in social media and the reports in mass media during the Black LivesMatter (BLM) protests following the death of George Floyd. We implement open-source pipelines to process the data at scale and employ the self-exciting counting process known as Hawkes process to address our main question: is there a causal relation between interactions in social media and reports of street protests in mass media? Specifically, we use distributed label propagation to identify such interactions in Twitter, that supported the BLM movement, and compared the timing of these interaction to those of news reports of street protests mentioning George Floyd, via the Global Database of Events, Language, and Tone (GDELT) Project. LÄS MER
14. T HE GENDER EQUALITY CHARADE A Critical Perspective on the Adoption and Implementation of 40/60 Gender Quota in Malawi
Master-uppsats, Göteborgs universitet/Institutionen för kulturvetenskaperSammanfattning : While gender quotas have been widely adopted by countries around the world as an affirmative action to enhance women’s participation and representation in politics and other public spheres, the impact of the phenomenon continue to vary across national borders. Notably, substantive research suggests that gender quotas promote representational equality and improve women's participation in politics and other spheres of public life. LÄS MER
15. Risk Assessment of International Mixed Asset Portfolio with Vine Copulas
Kandidat-uppsats, Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakultetenSammanfattning : This thesis gives an example of assessing the risk of a financial portfolio with international assets, where the assets may be of different classes, by the use of Monte Carlo simulation and Extreme Value Theory. The simulation uses univariate modelling, models of the assets’ returns as stochastic processes, as well as vine copulas to create dependency between the variables. LÄS MER
