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Showing result 1 - 5 of 11 essays matching the above criteria.

  1. 1. Investigation of Antenna Radomes in Low Earth Orbits

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Mathias Manohar Gren; [2023]
    Keywords : Materials; Science; Space; Satellites; Antenna Radomes; Beyond Gravity; Coatings; Physics; Chemistry; Low Earth Orbits; Engineering; Lunds University; Materials Chemistry; Technology and Engineering;

    Abstract : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. READ MORE

  2. 2. Multiplexing NFC Antennas : An evaluation of the technique and its limitations

    University essay from Jönköping University/JTH, Avdelningen för datavetenskap

    Author : Viktor Gustafsson; Per Ottosson; [2023]
    Keywords : AAT; BER; DSR; Impedance; Multiplexer; NFC; Wireless Technology;

    Abstract : Introduction This study aims to investigate the possibility of driving multiple NFC antennas with a single NFC-controller by using a multiplexer. An artifact was developed and experiments were conducted in order to evaluate the design choice and in addition, to observe the impact of a multiplexer in an NFC system with respect to the number of successful tag detections, bit error rate (BER), the utilization of automatic antenna tuning (AAT) and the physical distance to the NFC tag. READ MORE

  3. 3. "There's always people around to help". A study of worldviews, social practices, and autonomy in Freetown Christiania

    University essay from Lunds universitet/LUCSUS

    Author : David Amado-Blanco Gonzalez; [2022]
    Keywords : Sustainability science; inner dimensions; interstitial spaces; urban squatting; social practices; Social Sciences;

    Abstract : Sustainability science has recently seen a growth of literature focused on individuals’ “inner dimensions” as a vehicle for transformative social change, an approach argued to be too individualistic. This thesis fits between both excessively structural and individualistic models of social transformation by framing inner dimensions into a theory of social change through collective action. READ MORE

  4. 4. Centrifugal Turbopumps - Flow Physics and Modelling

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Carl Eriksson; Hampus Henåker; [2021]
    Keywords : Centrifugal Pumps; Rocket Science; Turbopumps; Two-Zone Model; Impeller; Vaneless Diffuser; Vaned Diffuser; Technology and Engineering;

    Abstract : Choices made in the early stages of a design process are crucial. They dictate many of the limitations and freedoms the designer has in later stages of the design. Informed decisions are therefore crucial at this stage. READ MORE

  5. 5. ‘Brand New Food’ - Brand Positioning of Entrepreneurial Innovation: A Multiple Case Study in the Food Industry

    University essay from Lunds universitet/Företagsekonomiska institutionen

    Author : Jamie-Lee Celine Lammers; Karoline Ryll; [2016]
    Keywords : Brand Positioning; Entrepreneurial Brand Building; Innovation and Branding; Entrepreneurial Positioning; Start-Up Branding; Start-Up Positioning; Market- and Brand-Oriented Positioning; Brand Identity Filter; Authenticity; Business and Economics;

    Abstract : While entrepreneurial brand building has received growing interest over the past years, the particular brand positioning practice around an innovation is little understood so far. The purpose of this study is to link the separate but interrelated academic domains of brand positioning, entrepreneurship and innovation and thereby to contribute to new theory building on entrepreneurial brand positioning practice. READ MORE