Sökning: "scattered light"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden scattered light.

  1. 1. Synchrotrons as a Source for Soft X-Ray Lithography

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Thomas Joseph Grandsaert Jr; [2021]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : To move to lower modes in extreme ultra-violet lithography (EUVL) technology (and keep up with Moore’s law), new sources of soft X-ray radiation must be developed. It is clear from previous studies that Free Electron Lasers (FELs) can easily meet the in-band power requirements at these lower wavelength modes, however detailed studies for insertion devices (undulators) as a soft X-ray lithography (SXL) source are due for a re-evaluation. LÄS MER

  2. 2. Orð Víkinganna. The level and scale of literacy in the Viking World : The cases of Birka and Sigtuna.

    Master-uppsats, Uppsala universitet/Institutionen för arkeologi och antik historia

    Författare :Themistoklis Zacharopoulos; [2021]
    Nyckelord :Viking Age; Sweden; literacy; Birka; Sigtuna; runes; inscriptions; styli; writing tools; GIS; archaeolinguistics; archaeological research; Vikingatiden; Sverige; läs och skrivkunnighet; Birka; Sigtuna; runor; inskriptioner; styli; skrivverktyg; GIS; arkeolingvistik; arkeologisk forskning;

    Sammanfattning : This thesis aims to study the level and scale of literacy as it expanded in Viking towns during the 8th-12th century. In order to get an understanding of this spread, I have worked with two case-studies of Viking towns, as they were founded and prospered during and by the end of the Viking Age in Sweden; the town of Birka located in Björkö Island in Lake Mälaren, and the town of Sigtuna located in the province of Uppland, in central Sweden. LÄS MER

  3. 3. Towards a Climatology of Polar Stratospheric Cloudsbased on observation with the IRF lidar

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Oliver Willbrink; [2021]
    Nyckelord :;

    Sammanfattning : The effect that the Polar stratospheric clouds (PSCs) have on the destruction of ozone in the polar vortex is well known. The study of these clouds is therefore highly relevant and important. A tool that can be used to gather parameters needed to describe the PSC is a lidar (Light Detection and Ranging). LÄS MER

  4. 4. Analysis of stellar spectra with machine learning

    Master-uppsats, Lunds universitet/Institutionen för teoretisk fysik; Lunds universitet/Astronomi; Lunds universitet/Institutionen för astronomi och teoretisk fysik

    Författare :Alvaro Segovia Otero; [2020]
    Nyckelord :Galactic Archaeology; machine learning; chemical abundances; FGK stars; Physics and Astronomy;

    Sammanfattning : Researchers in the field of Galactic Archaeology have entered the era of industrial revolution. Upcoming surveys are planning on observing tens of millions of stars and high precision and accuracy must be ensured when deriving their stellar parameters and elemental abundances. LÄS MER

  5. 5. Method for coupling modulatedscattered light from free flyinginsects to harmonics and theirrelative phases

    Master-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk statistik

    Författare :Martin Patricks; Ludvig Anderberg; [2020]
    Nyckelord :frequency estimation; phase estimation; matched phase reassignment; entomologic lidar; modulation spectroscopy; scattered light; Technology and Engineering;

    Sammanfattning : Using laser it is possible to measure the backscattered light from insects. The resulting signal can then be analysed in order to potentially determine the species of the insect. LÄS MER