Sökning: "polarisation"

Visar resultat 11 - 15 av 146 avhandlingar innehållade ordet polarisation.

  1. 11. Electrochemical performance of porous MCFC cathodes

    Författare :Carina Lagergren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; molten carbonate fuel cell; MCFC cathode; LiCoO2; NiO; porous electrode; polarisation; performance; reaction mechanisms; conductivity; Chemical engineering; Kemiteknik;

    Sammanfattning : .... LÄS MER

  3. 12. An Experimental and Theoretical Study of the Mass Transport in Lithium-Ion Battery Electrolytes

    Författare :Andreas Nyman; Göran Lindbergh; Mårten Behm; Signe Kjelstrup; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium‐ion batteries; Electrolytes; Transport properties; Conductivity; Diffusion coefficients; Transport number; Maxwell-Stefan equation; Simulations; Mathematical analysis; Polarization; Hybrid electric vehicles; Litiumjonbatterier; Aprotiska elektrolyter; Transport egenskaper; Konduktivitet; Diffusion koefficienter; Transporttal; Maxwell-Stefans ekvation; Simuleringar; Matematisk analys; Polarisation; Elhybridfordon; Electrochemistry; Elektrokemi;

    Sammanfattning : Lithium‐ion batteries are particularly suitable as energy storage solutions in high power applications, such as hybrid electric vehicles. It is generally considered that one of the processes that limit the power density for lithium‐ion batteries is the mass transport in the electrolyte. LÄS MER

  4. 13. Magnetic fields of cool active stars

    Författare :Lisa Rosén; Oleg Kochukhov; Eric Stempels; Andrew Collier Cameron; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stars: magnetic field; stars: late-type; stars: activity; stars: imaging; polarisation; starspots; Astronomy; Astronomi;

    Sammanfattning : Magnetic fields are present throughout the universe and are very important for many astrophysical processes. Magnetic field influences a star throughout its life and affects nearby objects such as planets. LÄS MER

  5. 14. "Den katolicerande riktningen i vår kyrka" : Högkyrklig rörelse och identitet i Svenska kyrkan 1909–1946

    Författare :Carl Sjösvärd Birger; Stina Fallberg Sundmark; Carola Nordbäck; Anders Jarlert; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; High Church movement; collective identity; high churchmanship; uses of the past; clergy; ecclesiastical movement; catholicity; renewal movement; network; glocal; polarisation; Högkyrklighet; kyrklig rörelse; kyrklig förnyelse; församlingsrörelse; katolicitet; Gunnar Rosendal; kollektiv identitet; historiebruk; Svenska kyrkan; glokal; polarisering; ämbetsfrågan; Church History; Kyrkohistoria;

    Sammanfattning : The purpose of this study is to investigate high churchmanship in the Church of Sweden during the first half of the 20th century from the perspective of movement and identity. Published and unpublished sources have been studied in order to reconstruct the network, organization, practices, strategies and self-understanding of the movement in relation to its national and international context. LÄS MER

  7. 15. Mathematical Models for Investigation of Performance, Safety, and Aging in Lithium-Ion Batteries

    Författare :Tommy Georgios Zavalis; Göran Lindbergh; Mårten Behm; Yann Bultel; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lithium-ion battery; modeling; electrochemical processes; impedance; polarization; performance; safety; aging; power optimized battery; litiumjonbatteri; modellering; elektrokemiska processer; impedans; polarisation; prestanda; säkerhet; åldring; effektoptimerat batteri;

    Sammanfattning : Rechargeable lithium-ion batteries have both the power and energy capabilities to be utilized in hybrid electric vehicles and other power demanding applications. However, there are obstacles primarily related to reliability in safety and lifetime. Additionally, there is still room for improvement in the battery performance. LÄS MER