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Visar resultat 1 - 5 av 26 uppsatser som matchar ovanstående sökkriterier.
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)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
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)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
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)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
4. Positioning in Non-Terrestrial Networks
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : 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
5. Design and Development of the Space Campus Ground Station for Small Satellites
Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : 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