Sökning: "excess yield"

Visar resultat 1 - 5 av 72 uppsatser innehållade orden excess yield.

  1. 1. Tiaminbrist på idisslare : hur vanligt är det med symtom i Sverige?

    Master-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Johan Turnstedt; [2024]
    Nyckelord :CCN; cerebrocortikal nekros; PEM; polioencefalomalaci; enkätstudie;

    Sammanfattning : Tiamin är ett vattenlösligt vitamin essentiellt för många djur, inklusive människor. Idisslare producerar normalt tillräckligt med tiamin via mikrober i våmmen, men brist kan ändå uppstå vid särskilda förhållanden. LÄS MER

  3. 2. Nutrient flow on agroforestry farms in the province of Son La in northwest Vietnam

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Vindenergi

    Författare :Tula Strotz; [2023]
    Nyckelord :Agroforestry; contouring grass rows; Guinea grass; nutrient losses; Vietnam; Gräsbarriärer; Höglandsodling; näringsförlust; Träjordbruk; Vietnam;

    Sammanfattning : The population in the high mountains of the northwest provinces of Vietnam belongs to the poorest population in the country. Among the reasons behind this are the high frequency of minority groups in the region and the infertile soils of the steep slopes. LÄS MER

  4. 3. Learning From Investor Attention: Examining the Predictive Power of Investor Attention on Market Returns with Machine Learning

    C-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Ludvig Hartler; Lukas Uhrström; [2022]
    Nyckelord :investor attention; machine learning; PLS; LSTM; stock returns;

    Sammanfattning : We study the predictive properties of investor attention on time series market returns. Extending an earlier proposed index of investor attention aggregated from twelve popularly studied attention proxies, we show that it strongly predicts excess returns on the stock market. LÄS MER

  5. 4. Increase of biogas production by incorporating residual streams from agriculture

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Stephanie Fjäll; [2022]
    Nyckelord :Anaerobic digestion; Agricultural residue; Lignocellulosic biomass; Mechanical pretreatment; Biogas production; Biorefinery; Chemical engineering; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : To expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. LÄS MER

  7. 5. Climate change mitigation from biochar production at farm level : A time dynamic LCA study of wheat

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Louise Jungefeldt; [2022]
    Nyckelord :Pyrolysis; agricultural by-products; life cycle assessment; waste valorization; carbon sequestration;

    Sammanfattning : Agricultural production in Sweden account for a large contribution of the territorial GHG emissions. System optimization, fossil fuel removal and increased circularity is therefore of great importance in order to reach the national net zero emission target by 2045. LÄS MER