Essays about: "Mattias Sjö"

Found 2 essays containing the words Mattias Sjö.

  1. 1. Methane production in Swedish freshwater lakes at different temperatures : -A laboratory study

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Mattias Edström; [2020]
    Keywords : Methane; lakes; temperature; sediment;

    Abstract : In this study, incubations of sediments from three Swedish lakes, Parsen, Södra Teden, and Venasjön, were made to examine CH4 production during different temperatures. The incubations took place in two different climate rooms, one with a decreasing temperature and one with an increasing temperature with analyses made on the temperature levels around 10 and 20°C. READ MORE

  3. 2. Flavour-ordering in the nonlinear sigma model with more derivatives and legs

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Mattias Sjö; [2019]
    Keywords : Particle physics; effective field theory; QCD; mesons; amplitudes; Physics and Astronomy;

    Abstract : We present a generalisation of the flavour-ordering method applied to the chiral nonlinear sigma model with any number of flavours. We use an extended Lagrangian with terms containing any number of derivatives, organised in a power-counting hierarchy. READ MORE