Essays about: "Josefin Lund"

Showing result 6 - 8 of 8 essays containing the words Josefin Lund.

1. 6. On-line estimation of junction temperatures in power modules

   University essay from Lunds universitet/Industriell elektroteknik och automation

   Author : Josefin Lund; [2014]
   Keywords : junction temperature estimation; foster circuit; thermal Ohms law; thermal resistance; thermal capacitance; time constant; Technology and Engineering;

   Abstract : It is critical for the durability of power modules to maintain low enough temperature in their components (IGBTs and diodes). The goal of this project was to examine methods to estimate the junction temperature of components in an IGBT module in real-time. READ MORE

3. 7. Optimal Control Algorithms for Klystron Efficiency in ESS

   University essay from Lunds universitet/Institutionen för reglerteknik

   Author : Josefin Berner; Aminda Ingulfson; [2012]
   Keywords : European Spallation Source ESS ; Particle accelerator; PI controller; MPC controller; Klystron; Cavity; Matlab; Simulink; Technology and Engineering;

   Abstract : European Spallation Source (ESS) is a linear particle accelerator planned to be built in Lund, Sweden. There is a need to control the electric field in the cavities in the particle accelerator, according to given specifications of the field. READ MORE

4. 8. Investigating the evolutionary consequences of sexual conflict through pollen and pistil traits in several Collinsia heterophylla (Plantaginaceae) populations

   University essay from Lunds universitet/Examensarbeten i biologi

   Author : Evan Hersh; [2012]
   Keywords : Biology and Life Sciences;

   Abstract : Abstract Sexual selection is considered to be one of the most important processes influencing the evolution and diversification of species. Sexual conflict, a subset of sexual selection theory, describes how opposing interests in the male and female reproductive systems can lead to one sex increasing its fitness at a cost to the other sex. READ MORE