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Showing result 1 - 5 of 108 swedish dissertations matching the above criteria.

2. 1. Vapor phase deposition of WO and WC

   Author : Per Tägtström; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; vapor deposition; ALE; CVD; tungsten oxide; epitaxy; nanocrystals; tungsten carbide; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

   Abstract : WO3 and WC are two compounds that are widely used for a number of different thin film applications. In this thesis, these compounds have been deposited using two different deposition methods: atomic layer epitaxy (ALE) and chemical vapor deposition (CVD). READ MORE

4. 2. Covalent Vapor-Phase Grafting of Degradable Polymers

   Author : Martina Källrot; Ann-Christine Albertsson; Maria Nowokowska; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vapor-phase grafting; covalent surface modification; functionalization; solvent-free grafting; sub-micron patterned topography; scaffolds; degradable polymers; poly L-lactide ; poly ε-caprolactone ; poly trimethylene carbonate ; poly L-lactide-co-glycolide ; poly 1; 5-dioxepan-2-one-co-L-lactide ; poly ε-caprolactone-co-L-lactide ; N-vinylpyrrolidone; maleic anhydride; acrylamide; acrylic acid; hyaluronic acid; in vitro degradation; Gasfasympning; kovalent ytmodifiering; funktionalisering; lösningsmedelsfri ympning; sub-micrometer mönstrad topografi; nedbrytbara polymerer; poly L-laktid ; poly ε-kaprolakton ; poly trimetylen karbonat ; poly L-laktid-co-glykolid ; poly 1; 5-dioxepan-2-one-co-L-laktid ; poly ε-kaprolakton-co-L-laktid N-vinylpyrrolidon; maleinsyraanhydrid; akrylamid; akrylsyra; hyaluronsyra; in vitro nedbrytning; Polymer chemistry; Polymerkemi;

   Abstract : Gasfasympning är en del i den moderna strategin för optimering av den molekylära designen av biomaterial. Kovalent ytmodifiering med hydrofila vinylmonomerer och koppling med bioaktiva grupper används för att öka biokompatibiliteten och bioaktiviteten hos biomaterialen.. READ MORE

5. 3. Characterization of WC-Co tools used for machining of Alloy 718 under the influence of high-pressure coolant supply

   Author : Philipp Hoier; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; erosion; surface-modifications; High-pressure coolant supply; Alloy 718; tool wear; vapor-barrier;

   Abstract : The use of high-pressure jets for supply of coolant to the cutting zone has the potential to significantly increase the productivity and process stability when machining difficult-to-cut materials such as Ni-based superalloys. Apart from better chip-breakability, the jets enable the coolant to reach closer to the cutting edge and hence enhance its capability to dissipate heat. READ MORE

6. 4. Epitaxy and characterization of SiGeC layers grown by reduced pressure chemical vapor deposition

   Author : Julius Hållstedt; KTH; []
   Keywords : Silicon germanium carbon SiGeC ; Epitaxy; Chemical vapor deposition CVD ; Loading effect; High resolution x-ray diffraction HRXRD ; Hall measurements; Atomic force microscopy AFM .;

   Abstract : Heteroepitaxial SiGeC layers have attracted immenseattention as a material for high frequency devices duringrecent years. The unique properties of integrating carbon inSiGe are the additional freedom for strain and bandgapengineering as well as allowing more aggressive device designdue to the potential for increased thermal budget duringprocessing. READ MORE

7. 5. Skin hydration - How water and osmolytes influence biophysical properties of stratum corneum

   Author : Sebastian Björklund; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Stratum corneum; diffusive transport; permeability; flow-through cell; Franz cell; transdermal drug delivery; water activity; vapor pressure; osmotic gradient; relative humidity; ceramide; free fatty acid; cholesterol; keratin filaments; natural moisturizing factor NMF ; urea; glycerol; molecular mobility; 13C natural-abundance solid-state NMR; polarization transfer; isothermal calorimetry; impedance spectroscopy; X-ray diffraction;

   Abstract : The outermost layer of skin (i.e., the stratum corneum, SC) is the interface that separates the water-rich inside of the body from the relatively dry external environment. SC forms an effective permeability barrier, which has to be overcome in transdermal drug delivery. READ MORE