Sökning: "Arne Roos"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Arne Roos.

  1. 1. Optical selectivity of some metal oxides for solar energy applications

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Arne Roos; [1983]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  2. 2. Alternative Stable States in Size-Structured Communities Patterns, Processes, and Mechanisms

    Detta är en avhandling från Umeå : Ekologi, miljö och geovetenskap

    Författare :Arne Schröder; Lennart Persson; André M. de Roos; Tim Benton; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biomass overcompensation; Chaoborus; emergent Allee effect; Heterandria formosa; juvenile recruitment bottlenecks; ontogenetic niche shifts; Poecilia reticulata; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Sammanfattning : Alternative stable states have been, based on theoretical findings, predicted to be common in ecological systems. Empirical data from a number of laboratory and natural studies strongly suggest that alternative stable states also occur in real populations, communities and ecosystems. LÄS MER

  3. 3. Preparation and Characterisation of Sputtered Titanium- and Zirconium Nitride Optical Films

    Detta är en avhandling från Uppsala : Uppsala University

    Författare :Kent Andersson; Arne Roos; M. Georgson; [1993]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Multilayered interference coatings based on titanium- and zirconium nitride and designed for solar control have been prepared using reactive d c magnetron sputtering. Preparation effects and degradation mechanisms were investigated. It was shown that the quality of the nitride strongly depends on the degree of crystallinity in the underlying oxide. LÄS MER

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

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Andreas Jonsson; Arne Roos; Werner Platzer; [2009]
    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; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP 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

  5. 5. Optical Characterisation of Miniature Structures and Translucent Sheets for Daylighting Applications

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Jacob Jonsson; Arne Roos; Helen Rose-Wilson; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Photospectrometry; Light scattering; Optical characterisation; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Sammanfattning : For a long time spectrophotometry has been a powerful method of determining optical material properties. Since the technique measures the parameters of interest, reflectance and transmittance, it is in general easy to use and interpret. LÄS MER