Sökning: "electric field measurements"
Visar resultat 16 - 20 av 175 avhandlingar innehållade orden electric field measurements.
16. Electromagnetic transformer modelling including the ferromagnetic core
Sammanfattning : In order to design a power transformer it is important to understand its internal electromagnetic behaviour. That can be obtained by measurements on physical transformers, analytical expressions and computer simulations. LÄS MER
17. On the Design of Electric Traction Machines : Design and Analysis of an Interior Permanent Magnet Synchronous Machine for Heavy Commercial Vehicles
Sammanfattning : Recent years have proven the benefits of electrifying the road bound vehicle fleet. With new components entering, the general understanding as well as the components as such needs to be improved. LÄS MER
18. Electric Charges on Insulator Surfaces and their Influence on Insulator Performance
Sammanfattning : AbstractPolymeric materials used in high voltage insulation systems are subjected to electric fields which can be strong enough to initiate electrical discharges in the surrounding gas environment. Generated electrical charges may be deposited on polymer surfaces and alter electric field distributions, thus affecting insulation performance and their corresponding breakdown characteristics. LÄS MER
19. Effects of impurities on charge transport in graphene field-effect transistors
Sammanfattning : In order to push the upper frequency limit of high speed electronics further, thereby extending the range of applications, new device technologies and materials are continuously investigated. The 2D material graphene, with its intrinsically extremely high room temperature charge carrier velocity, is regarded as a promising candidate to push the frequency limit even further. LÄS MER
20. Filtration of Microcrystalline and Microfibrillated Cellulose: The impact of ions and electric field
Sammanfattning : Dewatering plays an essential role in the processing of microcrystalline cellulose (MCC) and microfibrillated cellulose (MFC), as their commercial attractiveness in many applications is limited by the high water content of the products. Filtration is the most common mechanical dewatering technique, but the filtration of these materials results in filter cakes with high filtration resistance. LÄS MER