Sökning: "TFMS"

Hittade 2 avhandlingar innehållade ordet TFMS.

1. 1. Ultra-short-chain perfluoroalkyl acids : Environmental occurrence, sources and distribution

   Författare :Maria Björnsdotter; Ingrid Ericson Jogsten; Anna Kärrman; Leo W. Y. Yeung; Tom Harner; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PFASs; TFA; TFMS; point sources; precursors; solar radiation; atmospheric oxidation; atmospheric deposition; flux; Arctic;

   Sammanfattning : Ultra-short-chain perfluoroalkyl acids (PFAAs) is a group of highly fluorinated and very stable chemicals. Their small molecular structure in combination with the acidic functional group result in highly polar compounds and concern has been raised as these substances may threaten our drinking water supplies. LÄS MER

3. 2. A Low-Leakage Linear Transverse-Flux Machine for a Free-Piston Generator

   Författare :Waqas Arshad; KTH; []
   Nyckelord :Free-piston generators; linear machines; transverse-flux machines; hybrid vehicles; electrical machines design;

   Sammanfattning : The presented work is about a new low-leakage lineartransverse-flux electrical machine.The machine is dimensionedfor a free-piston generator. The intended application is inseries-hybrid vehicles. The free-piston generator is anintegration of a free-piston combustion engine with a linearelectrical machine. LÄS MER