39 resultados para ISLAND FILMS

em Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland


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Abstract: Readin films through political classics

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Selostus: Syötävien gluteenikalvojen valmistus, ominaisuudt ja eräät käyttösovellukset

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The plane wave electromagnetic interference (EMI) shielding properties of DC sputtered Ni79Fe16Mo5 and copper layers were studied according to ASTM D 4935-89 on frequency range of 50 MHz – 2.5 GHz and RF magnetic shielding effectiveness by shielded magnetic loop probes. Results show that Ni79Fe16Mo5 provides better RF magnetic shielding above the layer thickness of approximately 120 nm. Copper provides better plane wave shielding effectiveness. The effect of shield internal interfaces was studied by depositing thin multilayer structures with and without a dielectric spacer layer.

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Digitoitu 10. 6. 2008.

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Due to font problem on the tilte field the titlte of the thesis is corrected here. The title of the thesis is: Magnetic Perovskites Sr2FeMoO6 and La(1-x)Ca(x)MnO3: Synthesis, Fabrication and Characterization of Nanosized Powders and Thin Films

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This work aimed to find out the suitability of foam as medium in application of thin liquid films. This consists of research over phenomena related to foam physics and behaviour. Solutions and mixtures to be foamed, foaming agents, foam generation and application methods were evaluated. Over the evaluated solutions and mixtures coating paste and CMC did not foam well. Latex and PVA solutions were foamable and the best solution for foam use was starch. PVA and casein can be used as foaming agents, but the best results were achieved with sodium dodecyl sulphate (SDS). SDS works well with starch solutions producing fine and stable foam. Foaming was done with simple mixers where pressurized air was fed to the solution. The foaming works fine when enough shear force is used together with sufficient foaming agent concentration. Foam application with curtain, rod and cylinder methods with a gap between the application device and paper were not usable because of high coating amount. Coating amounts were smallest with the blade method which achieved 0.9 g/m2 starch layer. Although some strength decrease was expected because of the foaming agent, it dit not have significant effect. The targeted coating amount of 0.5 g/m2 was not achieved due to the limitations with the methods. More precise foam application methods are needed. Continuous foam generation and feed to the paper surface with controllable device such as application teeth could improve the results.

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Due to font problem on the tilte field the titlte of the thesis is corrected here. The title of the thesis is: Superconducting properties and their enhancement in ReBa2Cu3O7-delta (RE = Y and Gd) films prepared by pulsed laser deposition

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Att ett geografiskt territorium uppnår autonomi förklaras ofta av skillnad I etnicitet, språk eller religion. En region som skiljer sig i någon av dessa kulturella aspekter från övriga regioner i ett land anses därför ha större sannolikhet att utveckla autonomi. Pär M. Olausson visar i sin avhandling att kulturella aspekter inte är den viktigaste förklaringen till att vissa öar utvecklar autonomi. Kulturella aspekter är bara en del i förklaringen till varför vissa öar utvecklar autonomi medan andra förblir en integrerad del av moderlandet. Kulturella aspekter måste kombineras med andra aspekter för att utgöra en tillräcklig förklaring till skillnaden i autonomi. Bland de autonoma regionerna i världen idag utgör öar en klar majoritet. Öar anses ofta ha speciella egenskaper som gör att de skiljer sig från fastlandet. Känslan av samhörighet och gemenskap är ofta starkare på öar pga deras ofta isolerade läge vilket i sin tur anses förklara varför många öar utvecklar autonomi. Genom att studera både autonoma och icke-autonoma öar visar Olausson att autonomi kan förklaras av att ön ligger längre än 1 000 km från fastlandet eller att den skiljer sig från fastlandet i någon av de kulturella aspekterna, att den har varit ockuperad av främmande stat och därmed avskiljd från övriga landet eller utgjort en egen stat. Den viktigaste förklaringen till varför vissa öar utvecklar autonomi men inte andra är emellertid öns strategiska betydelse.