Sökning: "oxygen transmission rate"
Visar resultat 6 - 10 av 17 avhandlingar innehållade orden oxygen transmission rate.
6. Effects of plasticizing and crosslinking on coatings based on blends of starch-PVOH and starch-lignin
Sammanfattning : A barrier material is usually needed on a fiber-based food package to protect the packed food from gases and moisture and thus maintain its quality. Barrier materials presently used in food packaging applications are mostly petroleum-based polymers. LÄS MER
7. Growth of ZnO/GaN distributed Bragg reflectors by plasma-assisted molecular beam epitaxy
Sammanfattning : This thesis describes epitaxial growth of ZnO/GaN distributed Bragg reflectors by hybrid plasma-assisted molecular beam epitaxy on GaN(0001). The unique hybrid approach employed the same growth chamber for continuous growth of both ZnO and GaN without exposing the layers to the ambient conditions. LÄS MER
8. Pulse oximetry : methodological considerations : experimental, in vitro and human investigations
Sammanfattning : Pulse oximeters monitor non-invasively the haemoglobin oxygen saturation. Light of two specific wavelengths, red and infrared light, is shined through a tissue, usually the finger, and the intensity of the light transmitted is measured. Oxyhaemoglobin absorbs the light differently when compared to reduced haemoglobin. LÄS MER
9. Strategies to improve the aging, barrier and mechanical properties of chitosan, whey and wheat gluten protein films
Sammanfattning : Chitosan, Whey Protein Isolate (WPI) and vital wheat gluten (WG) are three biomaterials that have quite promising properties for packaging purposes. They have good film forming properties and good gas barrier properties in dry conditions. LÄS MER
10. Characterisation of Structural and Catalytic Properties of Pd Grown on MgO
Sammanfattning : In heterogeneous catalysis research, extended single-crystal surfaces of catalytic metals have been largely used to study fundamental aspects of, e.g., gas adsorption and desorption. LÄS MER