Sökning: "sandra"

Visar resultat 1 - 5 av 235 avhandlingar innehållade ordet sandra.

  1. 1. Microphysical Properties of Snow Crystals Using Ground-Based In-Situ Instrumentation : Hunting Snowflakes

    Författare :Sandra Vázquez Martín; Thomas Kuhn; Salomon Eliasson; Sandra Yuter; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Atmosfärsvetenskap; Atmospheric science;

    Sammanfattning : Understanding what happens to hydrometeors, such as atmospheric snow particles (ice crystals, snow crystals, and snowflakes) in clouds is crucial for improving meteorolog-ical forecast and climate models. Consequently, improved predictions of the precipitation amount reaching the ground (snowfall) require accurate knowledge of the microphysical properties of ice crystals, such as their size, cross-sectional area, shape, fall speed, and mass. LÄS MER

  3. 2. Adventures of III-V Semiconductor Surfaces

    Författare :Sandra Benter; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; III-V; semiconductor surfaces; Bismuth; InAs; GaAs; droplets; STM; XPS; XPEEM; ARPES; Fysicumarkivet A:2023:Benter;

    Sammanfattning : Tailoring the surface composition and morphology of materials to enable new electronic devices is important for a wide range of applications such as quantum computing or spintronics. A fundamental understanding of the changes induced in the surface during different process steps can help to establish new synthesis routes as well as devices. LÄS MER

  4. 3. Caught Between Spaces : Socio-Environmental Vulnerability in Formal and Informal Peri-Urban Bogotá and Soacha, Colombia

    Författare :Sandra Valencia; LUCSUS; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; peri-urban area; urban-rural interface; socio-environmental change; wellbeing; vulnerability; Colombia; Bogotá; Soacha; informality; formalization; political ecology; stadsnära; periurbana områden; periurbanisering; Colombia; formalisering; informell bosättning;

    Sammanfattning : The world is rapidly urbanizing. To contribute to the understanding of the socio-environmental changes brought about by urban sprawl and densification, this thesis examines wellbeing and vulnerability in low-income peri-urban areas in and around Bogotá, Colombia. LÄS MER

  5. 4. Optical investigations and characterization of soot of different morphology and maturity

    Författare :Sandra Török; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Laser-induced incandescence; Extinction; Elastic light scattering; mini-CAST; Soot; Brown carbon; Black carbon; Maturity; Morphology; Fysicumarkivet A:2021:Török;

    Sammanfattning : The formation path from small poorly absorbing incipient soot to larger fractal-like strongly absorbing black soot is extensive, and along this path the optical and physicochemical properties of the soot evolve. Soot emitted into the atmosphere may originate from some stage of this process, which will result in a wide spectrum of carbonaceous aerosols in the atmosphere which may interact with the sun and influence the radiative balance of the earth. LÄS MER

  7. 5. Interfacial colloidal particle films and their structure formation

    Författare :Sandra Rödner; KTH; []
    Nyckelord :crystallisation; colloids; structure; monolayer; evaporation; salt;

    Sammanfattning : Abstract to“Interfacial colloidal particle films andtheir structure formation”; a licentiate thesis, whichwill be presented by Sandra Rödner in Q2, 29 November 2002at 13.00.Colloidal particles can be made to organise themselves intoordered arrays. LÄS MER