Sökning: "Andreas Roos"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Andreas Roos.

  1. 1. Renewing power : Including global asymmetries within the system boundaries of solar photovoltaic technology

    Författare :Andreas Roos; Humanekologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; solar energy; photovoltaic technology; ecologically unequal exchange; philosophical materialism; social metabolism; political artifacts; authoritarian technics; machine fetishism; environmental justice; environmental sustainability; solar power;

    Sammanfattning : Solar photovoltaic (PV) technology is one of the most favored means of mitigating climate change. At the same time, there is a growing concern over how this technology is both environmentally harmful and unevenly distributed in the world economy. LÄS MER

  3. 2. Stable high-sensitivity cardiac troponin T levels and outcomes

    Författare :Andreas Roos; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Many patients who seek medical attention because of chest pain in the emergency department (ED), without myocardial infarction (MI) as a final diagnosis, will have cardiac troponin (cTn) levels above the upper normal limit when measured with the high-sensitivity cardiac troponin T (hs-cTnT) assay. In patients with acute medical diseases other than MI which may affect hs-cTn levels, treatment strategies focus on underlying conditions. LÄS MER

  4. 3. Multi-Electron and Multi-Ion Coincidence Spectroscopy of Single-Photon Ionization Processes in Molecules

    Författare :Andreas Hult Roos; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis presents experimental investigations of multi-electron and multi-electron-multi-ion coincidence measurements of samples in the gas phase utilizing a versatile time-of-flight magnetic bottle spectrometer technique. These investigations of multiply ionized atomic and molecular species provide valuable information on, and understanding of, ionization processes and dissociation mechanisms highly relevant to the development of electronic structure theories. LÄS MER

  5. 4. Optical Characterization and Energy Simulation of Glazing for High-Performance Windows

    Författare :Andreas Jonsson; Arne Roos; Werner Platzer; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy simulations; antireflection coatings; dip-coating; optical measurements; spectrophotometer; integrating spheres; low-e windows; solar control windows; smart windows; control strategies; U value; g-value; Engineering physics; Teknisk fysik; Engineering Science; teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : This thesis focuses on one important component of the energy system - the window. Windows are installed in buildings mainly to create visual contact with the surroundings and to let in daylight, and should also be heat and sound insulating. LÄS MER

  7. 5. Optical Efficiency of Low-Concentrating Solar Energy Systems with Parabolic Reflectors

    Författare :Maria Brogren; Arne Roos; Björn Karlsson; Andreas Häberle; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Photovoltaic cells; Photovoltaic-thermal systems; Parabolic reflectors; Optical properties; Reflector materials; Optical efficiency; Accelerated ageing; Outdoor ageing; Building-integrated photovoltaics; Teknisk fysik; Engineering physics; Teknisk fysik;

    Sammanfattning : Solar electricity is a promising energy technology for the future, and by using reflectors for concentrating solar radiation onto photovoltaic cells, the cost per produced kWh can be significantly reduced. The optical efficiency of a concentrating system determines the fraction of the incident energy that is transferred to the cells and depends on the optical properties of the system components. LÄS MER