Sökning: "mass spektroskopi"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden mass spektroskopi.

  1. 1. Record of the end-Triassic mass extinction in shallow marine carbonates: the Lorüns section (Austria)

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Linus Brakebusch; [2022]
    Nyckelord :sedimentology; geochemistry; ooids; oolites; oncoids; oncolites; Triassic; Jurassic; Rhaetian; Hettangian; ocean acidification; Earth and Environmental Sciences;

    Sammanfattning : The end-Triassic mass extinction (ETE) was one of the five big mass extinctions of the Phanerozoic and occurred ~201 Ma ago. Research agrees that the main triggering factor for the ETE was the eruptions of the Central Atlantic Magmatic Volcanic Province (CAMP), linked to the break-up of the supercontinent Pangaea. LÄS MER

  3. 2. Evaluation of the recyclabillity of a lignin-based biopolymer

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Materialvetenskap

    Författare :Eric Hacksell; [2021]
    Nyckelord :recycling; recyclability; lignin; Renol; PP; mechanical recycling; Recyclass; återvinning; lignin; Renol; återvinningsbarhet; Recyclass;

    Sammanfattning : The use of plastic materials has changed the packaging industry, the construction industry, the automotive industry, and many others drastically. Plastics are also abundant in our everyday life. However, its downsides in the society are undeniable and are starting to get attention from law makers, the general public and industries alike. LÄS MER

  4. 3. Archaeologic inspection of the Milky Way using vibrations of a fossil : Seismic, spectroscopic and kinematic characterization of a binary metal-poor Halo star

    Kandidat-uppsats, Uppsala universitet/Observationell astrofysik

    Författare :Amanda Byström; [2020]
    Nyckelord :Milky Way; Halo; galactic archaeology; asteroseismology; binary star; CEMP stars; CEMP-r s stars; stellar age; stellar mass; chemical abundance pattern; Gaia-Enceladus; Gaia-Sausage; Sequoia; spectroscopy; metal-poor;

    Sammanfattning : The Milky Way has undergone several mergers with other galaxies during its lifetime. The mergers have been identified via stellar debris in the Halo of the Milky Way. The practice of mapping these mergers is called galactic archaeology. To perform this archaeologic inspection, three stellar features must be mapped: chemistry, kinematics and age. LÄS MER

  5. 4. Development of a method that quantifies the filtration efficiency of soft particles in drop-in fuels

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Swarga Shriharsha; [2019]
    Nyckelord :;

    Sammanfattning : The global carbon footprint is increasing with course of time. World is moving towards fossil free and reduce the dependency of fossil fuels to meet their daily needs. Transportation industry is the major user of fossil fuels today and major contributor to the CO2 emissions which leads to global warming. LÄS MER

  7. 5. Detection of glass in RDF using NIR spectroscopy

    Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Philip Hedlund; [2018]
    Nyckelord :NIR; spectroscopy; RDF; glass; CFB; boiler; performance; losses; NIR; spektroskopi; RDF; glas; CFB; panna; prestanda; förluster;

    Sammanfattning : Purpose of this study was to investigate the possibilities of using Near-infrared (NIR) spectroscopy to detect glass in refuse derived fuel (RDF) as well as what on-line data of glass content could be used for in terms of boiler operation and performance determination. Sample configurations were done with dried RDF (to prevent mass loss due to moisture and spectroscopic disturbance) and increasing concentrations of colored soda-lime glass, total of 100 samples. LÄS MER