Sökning: "Particle Matters"

Hittade 5 uppsatser innehållade orden Particle Matters.

  1. 1. Environmental transformation and dissolution of Cobalt- and Nickel-based Nanoparticles in Presence of Eco-corona Biomolecules

    Master-uppsats, KTH/Yt- och korrosionsvetenskap

    Författare :Anher Saeed; [2021]
    Nyckelord :Nanoparticles; Cobalt; Nickel; Eco-corona biomolecules adsorption; Metal dissolution; Nanopartiklar; Kobolt; Nickel; Biomolekyler adsorption; Metallfrisättning;

    Sammanfattning : Den ökande trenden med att använda tillverkade nanopartiklar (NPs) i olika tillämpningar i samhället har väckt oro när det gäller deras växelverkan med naturliga ekosystem. Syftet med denna studie är att ta fram data under förhållanden som simulerar realistiska scenarios och syftar till att förstå växelverkan mellan koboltbaserade NPs (Co, Co3O4 och Co SCS) och nickelbaserade NPs (Ni, NiO och Ni SCS) med naturliga nedbrytningsprodukter (biomolekyler, ekokorona) som utsöndras från Daphnia magna. LÄS MER

  3. 2. Small Toeplitz Operators

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Stefano Decio; [2018]
    Nyckelord :Operator theory; Mathematics and Statistics;

    Sammanfattning : Toeplitz operators acting on Hilbert spaces of analytic functions are among the most well studied examples of concrete operators. In our work we are interested in a cut-off property of such operators; namely, if the operator is small enough, does it have to be zero? Or more in general, must its symbol be of a particular form? There have been several such results, and in the Hardy space the answer is classical and well known. LÄS MER

  4. 3. Investigating the GW self-energy of the homogeneous electron gas in real space

    Master-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Zhen Zhao; [2018]
    Nyckelord :GW method; self energy; screened-exchange; Coulomb-hole; Physics and Astronomy;

    Sammanfattning : The real space behavior of the GW self-energy in the electron gas model was investigated in this thesis work. The self-energy is naturally decomposed into the screened-exchange and the Coulomb-hole components. LÄS MER

  5. 4. Effect of soil tillage system and straw retention on soil aggregation and water capacity

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Emma Lindqvist; [2015]
    Nyckelord :soil; tillage; structure; aggregation; straw; water capacity;

    Sammanfattning : Arable land supplies food and it is therefore important to develop the production and land-use in a sustainable way. To grow crops for food should be both economical and environmentally sustainable and the soil structure and quality should be taken in consideration when cultivating our land. LÄS MER

  7. 5. Charging the use of studded tires in Stockholm city-A cost Benefit analysis

    Magister-uppsats,

    Författare :Ishmael Aghanifor; [2015]
    Nyckelord :Cost Benefit analysis; Studded tires; VSL; CEA; CUA; Particle Matters; Willingness to pay; Congestions charges; Morbidity and Mortality Net Social Benefits etc.;

    Sammanfattning : The stockholm county proposed legislation in 2010 on the use of studded tires in the city. The aim of the policy was to reduce the use of studded tires by 50 percent. LÄS MER