Sökning: "dual energy"

Visar resultat 6 - 10 av 113 uppsatser innehållade orden dual energy.

  1. 6. Improving proton therapy planning with photon-counting spectral computed tomography

    Master-uppsats, KTH/Fysik

    Författare :Karin Larsson; [2023]
    Nyckelord :Proton therapy; Medical imaging; Computed Tomography; Protonterapi; Medicinsk avbildning; Datortomografi;

    Sammanfattning : Proton radiation therapy is an alternative to conventional photon radiation therapy, which accounts for the majority of radiation treatments today. The rationale for using protons in radiation therapy lies in their dose deposition properties; photons deposit a radiation dose inversely proportional to the energy, and therefore tissue depth, while protons exhibit a sharp Bragg peak when traversing matter. LÄS MER

  3. 7. Preparedness of Construction SMEs for climate adaptation-related renovation services : An analysis of companies in the Kronoberg region

    Master-uppsats, Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)

    Författare :Rida Naeem; [2023]
    Nyckelord :Construction sector; Buildings; Small and Medium-sized Enterprises SMEs ; Climate change; Kronoberg region;

    Sammanfattning : Climate change presents a significant global challenge, affecting various aspects such as rising sea levels, extreme weather events, and altered precipitation patterns. Climate adaptation and climate mitigation are two fundamental strategies for addressing climate change. LÄS MER

  4. 8. Analysis of performance data of wind turbines for polar regions

    L3-uppsats, Uppsala universitet/Högenergifysik

    Författare :Arnau Serra Garet; [2023]
    Nyckelord :;

    Sammanfattning : The Radio Neutrino Observatory in Greenland is situated at Summit Station. Due to its isolatedlocation the main power to support the autonomous radio stations is solar energy. However,during the winter months when there is no sun another strategy needs to be found. LÄS MER

  5. 9. The Impact of China's Digital Economy Development on Carbon Emissions - Taking 31 Key Cities as Evidence

    Kandidat-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Chu Han Qin; [2023]
    Nyckelord :Digital economy; Carbon emissions; Low-carbon development; Information and communication technology ICT ; Inverted U-shape; Environmental Kuznets Curve EKC ; Business and Economics; Social Sciences;

    Sammanfattning : Environmental deterioration led by global warming is accelerating, and low-carbon development has become a global consensus. China, as the world's largest developing country, has also responded to low-carbon development and proposed a "30.60" dual-carbon target aimed at reducing carbon emissions. LÄS MER

  7. 10. Experimental Study of Flow Fields in Moving Bed Biofilm Reactors

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

    Författare :Shea Nee Chew; [2023]
    Nyckelord :Moving bed biofilm reactors; Biofilm carriers; Mechanical mixing; Mixer configurations; Carrier mixing; Biofilmsreaktorer med rörlig bädd; Biofilmsbärare; Mekanisk blandning; Blandarkonfigurationer; Bärarblandning;

    Sammanfattning : With the rise in global energy prices, as well as energy consumption being the largest source of greenhouse gas emissions, biofilm-based systems utilized for wastewater treatment, such as moving bed biofilm reactors (MBBRs), have grown in popularity for their lower energy consumption compared to conventional activated sludge processes. However, this technology requires large amounts of energy to constantly distribute and suspend its biofilm carrier within the reactor by either aerators or mechanical mixers. LÄS MER