Sökning: "DEF"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet DEF.

  1. 1. Mikroproportionering av cement : För minskning av koldioxidutsläpp

    Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Ahmad Haj Hamido; Majd Eddin Salem; [2023]
    Nyckelord :limestone; concrete; strength; partial substitute.; kalksten; betong; tryckhållfasthet; ersättning för cement.;

    Sammanfattning : This study has investigated the effect of replacing limestone with different percentages of limestone powder (5%, 10% and 15%) using the T KS method on the compressive strength of the mortar. The results have shown that the compressive strength of the mortar has decreased with curing time (at day 14) and with an increase in the proportion of limestone powder, contrary to what has been expected. LÄS MER

  3. 2. A Comparative Analysis of the Performance of Euro-Denominated Green and Conventional Bonds

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Liina-Johanna Leeve; Lois Anum; [2019]
    Nyckelord :Green Bonds; Conventional Bonds; Sustainable Investments; Corporate Bonds; Fama-Macbeth Regression; Fama-French Model; Matching Principle; Merton Model; Business and Economics;

    Sammanfattning : The green bond market has seen exponential growth since its boom in 2013 but literature on this topic is considered woefully inadequate. This research paper therefore seeks to compare the performance of European green bonds against its conventional counterparts. LÄS MER

  4. 3. The Dissipating Energy Flow method for analysing generator contribution to power system damping -- evaluation and interpretation

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Hampus Möller; [2019]
    Nyckelord :Electromechanical oscillations; small-signal stability; energy flow; PMU measurements; forced oscillations; dissipating energy.; Technology and Engineering;

    Sammanfattning : Electromechanical oscillations is a power system phenomenon where generator rotors oscillate, leading to oscillatory power flows. Damping of such oscillations is important for system stability. Forced oscillations is a special case where one faulty component is the source of the oscillation. LÄS MER

  5. 4. Performance Evaluation of Green and Conventional Bonds by Common Factor Models

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Wilhelm Asker; Jens Malm; [2018-07-04]
    Nyckelord :;

    Sammanfattning : Together with increased sustainable awareness, companies and municipalities all over the world seek funds to conduct Green projects. The rapid growth of interest in sustainability has led to an additional investment opportunity for investors. LÄS MER

  7. 5. Numerical analysis of Urea-SCR sprays under cross-flow conditions

    Master-uppsats, KTH/Mekanik

    Författare :Jakob Heide; [2016]
    Nyckelord :Lagrangian Particle Tracking; Selective Catalyst Reduction; droplet;

    Sammanfattning : The mixing and evaporation of Diesel Exhaust Fluid (DEF) inside an Urea Selective Catalyst Reduction (SCR) chamber has been numerically investigated. The first task in this work has been to first look into the numerical framework and assess the models available in a commercial CFD software (ANSYS Fluent 14.5). LÄS MER