Sökning: "water mist"
Visar resultat 6 - 10 av 10 avhandlingar innehållade orden water mist.
6. Lithium-ion Battery Safety - Assessment by Abuse Testing, Fluoride Gas Emissions and Fire Propagation
Sammanfattning : Lithium-ion batteries offer high energy and power densities as well as long life time but have a more narrow stability window compared to other battery types and contain reactive and flammable materials. In case of overheating the battery cell can release gas (vent) and, at temperatures of about 150-200 °C, a so called thermal runaway can occur, that is a rapid self-heated temperature increase which is typically accompanied with a large release of smoke and gas, fire and a potential cell case explosion or gas explosion. LÄS MER
7. Additive Manufacturing and Integration of 3D MEMS using Ultrafast Lasers and Magnetic Assembly
Sammanfattning : The geometry of MEMS devices is limited by the technologies used to fabricate them. Today, microsystems are manufactured with patterning technologies that allow only for 2D and 2.5D geometries. LÄS MER
8. Physiological adaptations in two ecotypes of Fucus vesiculosus and in Fucus radicans with focus on salinity
Sammanfattning : The in origin intertidal marine brown alga Fucus vesiculosus L. grow permanently sublittoral in the brackish Bothnian Sea, side by side with the recently discovered F. radicans L. Bergström et L. LÄS MER
9. Everything has its processes, one could say : a longitudinal study following students' ideas about transformations of matter from age 7 to 16
Sammanfattning : This thesis concerns students’ learning and meaning-making in science. The theoretical framework builds upon Human Constructivism. This perspective underlines the unique interplay that occurs between thinking, feeling, and acting in human meaning-making and also stresses the important role of language in learning processes. LÄS MER
10. Everything has its processes, one could say - A longitudinal study following students’ ideas about transformations of matter from age 7 to 16
Sammanfattning : Denna avhandling handlar om elevers lärande och meningsskapande i naturvetenskap. Det teoretiska ramverket bygger på Human Constructivism. Detta perspektiv framhåller det unika samspel som äger rum mellan tankar, känslor och handlingar då människor skapar mening. Perspektivet betonar också språkets viktiga roll i lärandeprocesser. LÄS MER