Search for dissertations about: "time variability"

Showing result 11 - 15 of 764 swedish dissertations containing the words time variability.

  2. 11. The impact of wind power variability on the least-cost dispatch of units in the electricity generation system

    Author : Lisa Göransson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wind power; intermittency; wind-thermal system; variability; cycling costs; electricity generation system; dispatch modeling; variation management;

    Abstract : This thesis investigates the dynamics of electricity generation systems that involve high levels of wind power. Methods to account for wind power variability in electricity-dispatch models are explored, and the impact of wind power variability on the optimal output of the generation units, so as to meet the system load with the lowest possible cost (economic dispatch), is analyzed for several systems, for both regional and European cases. READ MORE

  4. 12. Accretion and time variability of T Tauri stars

    Author : Erik Gullbring; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Stars; Stjärnor;

    Abstract : .... READ MORE

  5. 13. Antibodies for better or worse or Antibody variability in an egg-laying mammal and a novel strategy in the treatment of allergies

    Author : Jeannette Johansson; Kjell-Olov Grönvik; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; Antibody; variability; platypus; allergy; vaccine; adjuvant; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi; Molecular Immunology; molekylär immunologi;

    Abstract : Antibodies are a central part of the immune defense system, and a large variability in their specificity is needed in order to be able to react against all possible foreign substances we may encounter during our lives. In this thesis, results are presented from investigations into how an egg-laying mammal, the Australian duck-billed platypus (Ornithorhynchus anatinus) creates antibody variability. READ MORE

  6. 14. Solar Variability Assessment in the Built Environment : Model Development and Application to Grid Integration

    Author : David Lingfors; Joakim Widén; Jan Kleissl; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solar Variability; Photovoltaics; Grid Integration; Distributed Generation; LiDAR; GIS; Engineering Science; Teknisk fysik;

    Abstract : During the 21st century there has been a rapid increase in grid-connected photovoltaic (PV) capacity globally, due to falling system component prices and introduction of various economic incentives. To a large extent, PV systems are installed on buildings, which means they are widely distributed and located close to the power consumer, in contrast to conventional power plants. READ MORE

  7. 15. Spatiotemporal streamflow variability in a boreal landscape : Importance of landscape composition for catchment hydrological functioning

    Author : Reinert Huseby Karlsen; Jan Seibert; Kevin Bishop; Thomas Grabs; Sarah E. Godsey; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; streamflow; catchment hydrology; boreal; water balance; spatiotemporal variability; landscape analysis; climate change; recession curve; Hydrology; Hydrologi;

    Abstract : The understanding of how different parts of a landscape contribute to streamflow by storing and releasing water has long been a central issue in hydrology. Knowledge about what controls streamflow dynamics across landscapes can further our understanding of how catchments store and release water, facilitate predictions for ungauged catchments, and improve the management of water quality and resources. READ MORE