Sökning: "Membran"

Visar resultat 11 - 15 av 138 uppsatser innehållade ordet Membran.

  1. 11. Investigating Yttrium Ruthenate Pyrochlore as an Anodic Electrocatalyst in Proton Exchange Membrane Water Electrolysis

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Kneev Sharma; [2023]
    Nyckelord :;

    Sammanfattning : As the energy transition progresses, the demand for green storage solutions is ever-increasing. Hydrogen storage is receiving increased interest and support due to its promising sustainability and flexibility. Proton-exchange, or polymer electrolyte, membrane (PEM) electrolyzers are a key technology supporting hydrogen storage systems. LÄS MER

  3. 12. In situ X-ray diffraction studies of vertically aligned CsPbBr3 nanowire arrays

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Jesper Larsson; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The past decade has seen a great interest in the development of metal halide perovskite materials for use in photo-optical devices, due to the excellent photo-optical properties of these materials. The primary limitation to industrial adoption, and the subject of much research, is the susceptibility of these materials to degradation from exposure to various factors such as air, heat and moisture. LÄS MER

  4. 13. Influence of current harmonics on the degradation of the catalyst coated membrane in PEMFC

    Master-uppsats, KTH/Kemiteknik

    Författare :Evelina Ahlén Norberg; [2022]
    Nyckelord :Proton Exchange Membrane Fuel Cell; Ripple Current; Current Harmonics; Degradation; Marine transportation; Polymerelektrolytbränslecell; Rippelström; Strömoscillation; Åldring; Sjötransport;

    Sammanfattning : Sjöfarten är idag dominerad av förbränningsmotorer som är beroende av fossila drivmedel. Elektrifiering är en av huvudstrategierna för att möjliggöra fossilfri energiförsörjning inom internationell sjöfart. LÄS MER

  5. 14. Fältstudie om kalciums betydelse för potatisens skalkvalitet och lagringsförmåga

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and Environment

    Författare :Maria Weigl; [2022]
    Nyckelord :potatiskvalitet; skalfinish; kalcium; odling; mangan; zink; potatis;

    Sammanfattning : Peel quality of the potato tuber is becoming increasingly important in potato cultivation. Consumers primarily demand potatoes that have an even, smooth, and fine peel. Tubers that have different types of scabs or other stains are rejected. In addition, farmers get paid more at higher peel quality. LÄS MER

  7. 15. Phase behavior of mixtures of polyampholytic proteins and RNA: a toy model study

    Master-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :Sonny Nilsson; [2022]
    Nyckelord :llps; biomolecular condensates; polyampholyte; polymer; demixing; mixing; RNA; protein; IDP; phase transition; aggregation; charge decoration; mixing parameter; flory-huggin; step potential; metropolis hasting; sv; Physics and Astronomy;

    Sammanfattning : Biomolecular condensates are aggregates formed from liquid-liquid phase separation through the interactions between nucleic acids and multivalent proteins. These condensates are essential for many biochemical processes inside the cell. LÄS MER