Sökning: "Ground Support Equipment"

Visar resultat 1 - 5 av 26 uppsatser innehållade orden Ground Support Equipment.

  1. 1. Design of a vacuum chamber for cathode testing and low power Hall Effect Thrusters : Collaborative project with OHB Sweden AB

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Andrea Martinez Sanz; [2023]
    Nyckelord :Vacuum chamber; adaptability; hollow cathode test; fluid ground support equipment; low power Hall Effect Thrusters test; Vakuumkammare; anpassningsförmåga; ihålig katod testa; flytande markstödutrustning; låg effekt Hall Effect Thrusters testa;

    Sammanfattning : Testing of hardware to be used in space sometimes involves using vacuum chambers. The need to test hollow cathodes, used as neutralizers for some Electric Propulsion Thrusters, and low power Hall Effect Thrusters at OHB Sweden requires a vacuum chamber to be upgraded. LÄS MER

  3. 2. Application of ERT for Quality Assurance in Jet Grouting Columns; A development of an alternative quality control

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Edvin Nilsagård; Rebecka Knutsson; [2022]
    Nyckelord :ert; jet grouting; quality control; pygimli; res2dinv; resistivity; Technology and Engineering;

    Sammanfattning : With the increased urbanization major cities are facing, expansion of larger facilities and households are inevitable. Expansion means larger areas of the surface needs to be used where the risk of varying subsurface soil properties increases with larger surface areas. LÄS MER

  4. 3. Är släckvatten en miljörisk vid bränder? : Möjlig påverkan på avloppsreningsverk, drickvatten, grundvatten och recipient i Stockholm.

    Magister-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Jenny Engström; [2021]
    Nyckelord :Brand; släckvatten; avloppsrening; recipient; dagvatten; dricksvatten; föroreningar;

    Sammanfattning : Extinguishing water is formed when extinguishing fires. It contains fire residues, contaminants from what has burned and what has been used to extinguish with. LÄS MER

  5. 4. Positioning in Non-Terrestrial Networks

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Soha Emara; [2021]
    Nyckelord :positioning; 5G; satellite; NTN; Technology and Engineering;

    Sammanfattning : In 5G communications, Non-terrestrial Network (NTN) is envisioned to complement Terrestrial Network (TN) to increase network availability, scalability and continuity. Positioning of User Equipment (UE) is critical for the operation of NTN. Currently, NTN uses Global Navigation Satellite System (GNSS) for positioning. LÄS MER

  7. 5. Design and Development of the Space Campus Ground Station for Small Satellites

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Martin Elfvelin; [2021]
    Nyckelord :Ground Station; Telecommunication; Small Satellites; Space Communication;

    Sammanfattning : With the launch of the first CubeSat a trend of easy access to Low Earth Orbit was started. Today many educational institutes around the world design, build and operate CubeSats for educational as well as scientific purposes. LÄS MER