Sökning: "field experiment"

Visar resultat 1 - 5 av 919 uppsatser innehållade orden field experiment.

  1. 1. Decay Chains of Fast Alpha Emitters in the Actinide Region

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Tanvir Sayed; [2024]
    Nyckelord :alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

    Sammanfattning : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. LÄS MER

  3. 2. Public goods games for collective agri-environmental contracts design

    Master-uppsats, SLU/Dept. of Economics

    Författare :Riccardo Spada; [2024]
    Nyckelord :Framed field experiment; Cooperation; Collective action; Heterogeneous endowment;

    Sammanfattning : This thesis conducts a structured literature review of public goods games (PGG) experiments to analyze the differences between laboratory and field studies and to understand whether farmers cooperate more or less than standard PGG subjects. In addition, novel data on public goods games conducted on European farmers from Germany, Hungary, Netherlands, and Poland are analyzed to understand the effect of heterogeneous starting endowments on cooperation. LÄS MER

  4. 3. Greenhouse gas emissions from peat soil thawing in spring : a comparison between fertilized and unfertilized soil

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Fanny Otterlin Karlsson; [2024]
    Nyckelord :agricultural soil; carbon dioxide; freeze-thaw cycles; nitrous oxide; soil temperature; water content;

    Sammanfattning : Peat soils drained for agriculture and forestry contribute to a significant amount of greenhouse gas emissions. Nitrous oxide is a greenhouse gas with high warming potential and agriculture in general accounts for about 70 % of nitrous oxide emissions. LÄS MER

  5. 4. Miljöfaktorers påverkan på nettoförflyttning hos mördarsnigel, Arion vulgaris

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Författare :Richard Danielsson; [2024]
    Nyckelord :Arion vulgaris; dispersal movement; pit tagging; Arion vulgaris; förflyttning; mördarsnigel; telemetri;

    Sammanfattning : The Spanish slug, Arion vulgaris, is an invasive species in Sweden and the rest of northern Europe, dispersing rapidly and widely and it has become a significant pest for both gardening enthusiasts and commercial farmers. In this study, I examined the relationship between dispersal movements and temperature, relative humidity, illuminance, and individual body mass of the slugs. LÄS MER

  7. 5. Sudetisk lärk – ett alternativ för sydsvenska skogar?

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Ella Bjelkered; [2024]
    Nyckelord :Lärk; förädling; Larix; klimatförändringar; skogsbruk;

    Sammanfattning : Den svenska skogsbranschen möter betydande utmaningar med de globala klimatförändringarna som hotar framtida råvaruförsörjning. Högst troligtvis bidrar klimatförändringar till ökade stormar och en övergång till varmare och torrare förhållanden. LÄS MER