Sökning: "Lighter Than Air Technology"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Lighter Than Air Technology.

1. 1. Validation of a method utilising MR images for dose planning of prostate cancer treatment : Validation of new coil technology applied on the pelvis region of healthy volunteers

   Master-uppsats, Linköpings universitet/Institutionen för hälsa, medicin och vård

   Författare :Tova Rung; [2022]
   Nyckelord :Synthetic CT; Air coil;

   Sammanfattning : By generating a synthetic CT image (sCT) directly from the MRI, the electron density can be calculated, and the CT examination can be excluded from the patient flow minimizing the risk of uncertainties in the registration. Basing the radiation treatment process solely on MR images is called MRI-only and is beneficial for the patient as it can provide more accurate radiation treatment than the standardised treatment with fewer CT examinations and possibly a more cost-effective radiation treatment process. LÄS MER

3. 2. Terra Nova : Mobility For The Future of The Planet

   Master-uppsats, Umeå universitet/Designhögskolan vid Umeå universitet

   Författare :David Wolter; [2021]
   Nyckelord :Future Mobility; Lighter Than Air Technology; Sustainable Design; Vertical Mobility; Speculative Design;

   Sammanfattning : The project is inspired by the idea of trying to simplify and create understanding on a broader level regarding the issues of climate change within the author’s field of design. How can design help us understand the relevance of acting now by visualizing how a potential future might look if action is not taken. LÄS MER

4. 3. Refined model for calculating the dynamic amplification factor for road bridges

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Jens Bergenudd; [2020]
   Nyckelord :Dynamics; Dynamic amplification factor; Dynamic impact factor; Platooning; Soil-structure interaction; Vehicle-bridge interaction; Technology and Engineering;

   Sammanfattning : The objective of the thesis is to simulate and evaluate vehicle-bridge interaction (VBI) due to road surface irregularities and soil-structure interaction (SSI) with different vehicle models and suspension properties. Parameter studies will be carried out for integral and slab bridges. LÄS MER

5. 4. Thrust Performance and Heat Load Modelling of Pulse Detonation Engines

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

   Författare :Konstantin Ragozin; [2020]
   Nyckelord :Pulse Detonation; PDE; Heat Modelling; Thrust Modelling;

   Sammanfattning : Pulse Detonation Engines (PDEs) are propulsion systems that use repeated detonations to generate thrust. Currently in early stages of development, PDEs have been theorised to have advantages over current deflagration based engines. LÄS MER

7. 5. Design of Ultra High Performance Fibre Reinforced Concrete Bridges : A Comparative Study to Conventional Concrete Bridges

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Viktor Eriksson; [2019]
   Nyckelord :Bridge design; CO2 emissions; Mechanical properties and behaviour; Straight short steel fibres; UHPC; UHPFRC; Bro dimensionering; CO2 utsläpp; Korta raka stålfibrer; Mekaniska egenskaper och beteende; UHPC; UHPFRC;

   Sammanfattning : The use of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) in the construction industry started in the 1990s and has since then been used for bridges all over the world. The mechanical properties and the dense matrix result in lower material usage and superior durability compared to conventional concrete, but the implementation of UHPFRC in the Swedish industry has been delayed. LÄS MER