Search for dissertations about: "transition-temperature"

Showing result 1 - 5 of 159 swedish dissertations containing the word transition-temperature.

  2. 1. Particle emissions from car brakes : The influence of contact conditions on the pad-to-rotor interface

    Author : Mattia Alemani; Ulf Olofsson; Jens Wahlström; Anders Söderberg; Staffan Jacobson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Car brakes emissions; transition temperature; working conditions; environmental design; pin-on-disc; Bilbromsutsläpp; övergångstemperatur; arbetsförhållanden; miljödesign; pinne-på-skiva; Machine Design; Maskinkonstruktion;

    Abstract : Due to their adverse health effects emissions have been regulated for over three decades. Brake wear particulate matter is the most important non-exhaust source, however current knowledge is mainly limited to observational studies. READ MORE

  4. 2. Water diffusion and free volume in hydrophilic polymers

    Author : Charlotte Trotzig; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; free volume; self-diffusion; degree of crystallinity; glass transition temperature; tensile storage modulus; surface tension; isotherm; HPMC; PEO; water; triacetin; clay; Macromolecular chemistry; dynamic mechanical analysis; Fysikalisk kemi; differential scanning calorimetry; nuclear magnetic resonance; positron annihilation; Makromolekylär kemi;

    Abstract : During moisture uptake in polymers, the diffusion of the water molecules is believed to occur via unoccupied voids. These voids are called free volume cavities and their sizes are continuously altered when the moisture content in the polymer is enhanced. READ MORE

  5. 3. Engineering of Pharmaceutical Particles : Modulation of Particle Structural Properties, Solid-State Stability and Tabletting Behaviour by the Drying Process

    Author : Jonas Berggren; Göran Alderborn; Graham Buckton; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutics; particle engineering; microcrystalline cellulose pellets; intragranular porosity; convective drying; tabletting behaviour; spray-dried composite particles; amorphous lactose; PVP; heat and moisture-induced crystallisation; glass transition temperature; Galenisk farmaci; Pharmaceutics; Galenisk farmaci; galenisk farmaci; Pharmaceutics;

    Abstract : Relationships between stresses during the drying process, particle structural and functional properties, and particle engineering by the drying process were addressed in this thesis. In the first part, the importance of the drying phase and the effect of the drying rate on the intragranular porosity of microcrystalline cellulose pellets were investigated. READ MORE

  6. 4. Heterogeneities in polymer gels: Effects on swelling and mechanical properties

    Author : Mikael Larsson; Chalmers tekniska högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gel; Phase separation; Heterogeneities; Polyacrylic acid.; HPMC; Glass transition temperature; Microfibrillated cellulose; Filler; Elastomer;

    Abstract : Polymeric hydrogels is a class of scientifically interesting materials that are being extensively studied. They are found in numerous applications within; drug delivery, hygiene products, food industry, analytical chemistry, etc. In addition, polymeric hydrogels have promising future applications as; cell scaffolds, implants, sensors, etc. READ MORE

  7. 5. Nanoplasmonic Sensing of Materials for Energy Applications

    Author : Ferry Nugroho; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; localized surface plasmon resonance; sensors; palladium; PIM-1; microporous polymers; nanofabrication; film thickness dependence; indirect nanoplasmonic sensing; glass transition temperature; carbon capture and storage; adsorption; polymer:fullerene blends; organic photovoltaics; alloy nanoparticles; hydrogen sensors; plasmonic sensors;

    Abstract : Sensors are omnipresent in our daily life. They are used in many applications ranging from the touch screen in our smartphones to more critical contexts such as pollution monitoring. READ MORE