Sökning: "absorptivity"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet absorptivity.

  1. 1. Characterization of Lamps of IRF Solar Simulator

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Mrunmayee Sonna; [2023]
    Nyckelord :IRF; Solar simulator; Characterization; Thermal simulations; Systema-Thermica; Autodesk Inventor; correlated results;

    Sammanfattning : The Swedish Institute of Space Physics (IRF) at Kiruna focuses on research activities in the ionosphere, magnetosphere, and upper atmosphere of the planet as well as the development and production of various sensors and detectors for space research. The test facility includes the IRF SpaceLab which is equipped with multiple testing equipment. LÄS MER

  3. 2. Temperature-dependent waterbinding on potassiumbirnessite : A potential sorbent for atmospheric water harvesting

    Kandidat-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Hanna Oderstad; [2022]
    Nyckelord :;

    Sammanfattning : The nanolayered manganese oxide birnessite (MnO2) is a naturally occurring mineralin soils and sediments. Its ability to capture and store water within its interlayers, andits great solar absorptivity, could be a part of the solution to global water shortage. LÄS MER

  4. 3. Enzymatic Modification of the Interaction Between Lignin and Recycled Cellulose Fibers

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Manfred Klug; [2019]
    Nyckelord :Lignin; Pulp and Paper; Recycling; Biotechnology; Enzyme technology; Laccases; Chemical Engineering; Kemiteknik; Technology and Engineering;

    Sammanfattning : The pulp and paper industry have been a growing market during the last decades. Due to higher environmental concerns among people, the recycling of papers has become an even more important part of the industry. Recycled paper fibers however are of lower quality than virgin fibers. LÄS MER

  5. 4. Single-Layer Metamaterial Absorber for Radar Application

    Master-uppsats, Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Författare :Motasim Ahmed; [2016]
    Nyckelord :Metamaterials Absorber;

    Sammanfattning : In the radar systems, the crosstalk or antenna-to-antenna interference between the radar antennas is useful in some cases. However in some application the received signal is too weak such as wall crack detection and it might affect the accuracy of the radar system. LÄS MER

  7. 5. Design, Construct and Test of Ultra-Wide Band Triple-layer Meta-material Absorber

    Master-uppsats, Högskolan i Gävle/Elektronik

    Författare :Pu Sun; [2016]
    Nyckelord :;

    Sammanfattning : In this paper, the design, simulation, fabrication and measurement of an ultra-wideband (UWB) meta-material absorber (MMA) is presented. The proposed MMA is planned to place between transmitter antenna and receiver antenna in a radar detection system in order to reduce the crosstalk. LÄS MER