Sökning: "tunn film"

Visar resultat 11 - 15 av 27 uppsatser innehållade orden tunn film.

  1. 11. Modelling Competitive Sorption of Per- and Polyfluoroalkyl Substances (PFASs) to Soil and Sorbents

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Linnea Georgii; [2021]
    Nyckelord :PFAS; modelling; competitive sorption; adsorption; isotherms; PFAS; modellering; konkurrenseffekter; adsorption; isotermer;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) have become contaminants of increasing concern to society due to the contamination of drinking water and the ecosystem. A better understanding of the sorption and transport of PFASs in soil systems is urgently needed, however there have been few studies dedicated to investigating competitive sorption among PFASs, and there is no available model to model such effects. LÄS MER

  3. 12. Converting Poultry Feather Waste into Bioplastics using Green Modifying Agents

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Marc Jirström; [2021]
    Nyckelord :polymer technology; materials science; renewable materials; Technology and Engineering;

    Sammanfattning : Handling of problematic waste material, and the use of fossil-based and non-biodegradable plastics are two major sustainability challenges. By developing solutions that convert waste material to bioplastics, it is possible to address both these issues. LÄS MER

  4. 13. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Jonathan Peterson; [2020]
    Nyckelord :Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Sammanfattning : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. LÄS MER

  5. 14. Extraction Replicas of Common Engineering Alloys for Analysis of Small Precipitates

    Master-uppsats, KTH/Materialvetenskap

    Författare :Monika Rolinska; [2020]
    Nyckelord :Extraction replica; transmission electron microscopy; materials characterization; precipitation; Extraktionsrepliker; transmissionselektronmikroskopi; materialkaraktarisering; utskiljningar;

    Sammanfattning : Characterization of small precipitates is important for development of new alloys. One inherent  difficulty  in  characterisation  of  small  precipitates  with  electron microscopy techniques  while  the  particles  are  embedded  in  the  matrix,  is  that the surrounding bulk material will contribute to the analysed signal- limiting, for example, the quantification of the composition of particles. LÄS MER

  7. 15. Stress-free titanium-based thin films for inner ear microphones : The last missing part of a technology for totally implantable hearing aid implants

    Master-uppsats, Linköpings universitet/Tunnfilmsfysik

    Författare :Dina Ehsan; [2020]
    Nyckelord :Stress-free; thin films; in situ; titanium; compressive; tensile;

    Sammanfattning : An implantable hearing aid device is being developed by a project group which is part of an EU initiative. This device contains a diaphragm consisting of a submicron thick freestanding titanium film, which should be free of internal stresses. LÄS MER