Sökning: "bipolar distribution"
Visar resultat 1 - 5 av 20 avhandlingar innehållade orden bipolar distribution.
Sammanfattning : Lyme disease is a tick-transmitted illness caused by Borrelia burgdorferi sensu lato (s.l.), a group of spirochetes with at least three human pathogenic species, B. burgdorferi sensu stricto, B. LÄS MER
Sammanfattning : This thesis investigates various discharge processes associated with upward lightning initiated from tall objects, both experimentally and theoretically, trying to bridge the knowledge-gap in understanding the mechanisms of the phenomena.Upward lightning initiation has attracted a great deal of interest during recent years due to the proliferation of tall communication towers and wind turbines. LÄS MER
Sammanfattning : Energetic-ion bombardment has become an attractive route to modify the crystal growth and deposit high quality thin films. In high-power impulse magnetron sputtering (HiPIMS) where the discharge is characterized by a significant amount of ions of the sputter-ejected atoms, energetic-ion bombardment effects could not be underestimated. LÄS MER
Sammanfattning : The immune system has been implicated in the mechanisms underlying many psychiatric disorders. Immune mediators are expressed in the central nervous system (CNS) not only in response to harmful stimuli, but also in a constitutive manner, and serve as important plasticity factors during development. LÄS MER
Sammanfattning : The superior characteristics of silicon carbide, compared with silicon, have suggested considering this material for the next generation of power semiconductor devices. Among the different power switches, the bipolar junction transistor (BJT) can provide a very low forward voltage drop, a high current capability and a fast switching speed. LÄS MER