Sökning: "non-equilibrium"
Visar resultat 1 - 5 av 30 uppsatser innehållade ordet non-equilibrium.
1. Mathematical Modeling and Simulation of Cryogenic Liquid Hydrogen Storage
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : Liquid hydrogen is an attractive alternative to fossil fuels in the aviation industry, but storing it both before and during flights introduces many challenges pertaining to the cryogenic liquid conditions required. Having reliable models to predict the dynamical behavior inside the storage tank is therefore of great interest. LÄS MER
2. Electron-skyrmion systems, in and out of equilibrium, and isolated or contacted to reservoirs
Magister-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionenSammanfattning : A Kondo lattice skyrmion model in contact with a macroscopic environment is simulated to explore skyrmion dynamics, which is an extension of previous work. The system is simulated using non-equilibrium Green's functions within the generalized Kadanoff-Baym ansatz and the wide band limit. LÄS MER
3. An alternative explanation for scale-free speed correlations in starling flocks: coarse-graining in time
Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)Sammanfattning : In a celebrated series of experimental observations, starling flocks have been shown to be characterized by scale-free, long-ranged spatial correlations in their velocity fluctuations. While this is expected for velocity orientation correlations on the basis of simple symmetry-breaking arguments, the same scaling-free behaviour for speed (i.e. LÄS MER
4. Black Holes of the First Stars
Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : In this report, we constrain properties of foreground objects in the Milky Way that have the potential of being confused with accretion disks of Population III stellar- mass black holes at high redshift. Following Windhorst et al. (2018), a model for multicolour accretion disks of Population III stellar-mass black holes is presented. LÄS MER
5. Doping Layers in Quantum Cascade Lasers: A study in doping density, position and migration effects
Master-uppsats, Lunds universitet/Matematisk fysikSammanfattning : Quantum Cascade Lasers (QCLs) consist of several semiconductor materi- als sandwiched together. The QCL achieves stimulated emission in the mid-IR (m-IR) to the THz region of the electromagnetic spectrum by inter-subband transitions. These parts of the electromagnetic spectrum are hard to lase in with conventional means. LÄS MER