Sökning: "reflector"

Visar resultat 16 - 20 av 58 uppsatser innehållade ordet reflector.

  1. 16. Pearls as bycatch mitigation strategy for Harbour porpoise (Phoecena phoecena)

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Sara Gustafsson; [2020]
    Nyckelord :harbour porpoise; bycatch mitigation; acoustic reflector; pearl; gillnet; F-POD; click rate; click behaviour; inter-click-interval; terminal buzz; diel phase; GAM;

    Sammanfattning : One of the major threats to harbour porpoise population sustainability is thought to be the high incidence of bycatch specifically in gillnets. This study aims to examine the use of acrylic class pearls developed in an earlier study as acoustic reflectors on gillnets in an effort to increase their visibility to echolocating harbour porpoises in the lumpsucker fishery in Kattegatt. LÄS MER

  3. 17. FraMe : Design and construction of an automatically framing camera mount

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :ANTON GRAHN; ADAM THÅLIN; [2020]
    Nyckelord :Mechatronics; Raspberry Pi; Camera; Infrared; Video tracking; Mekatronik; Raspberry Pi; Kamera; IR; Bildspårning;

    Sammanfattning : The scope of this bachelor’s thesis was to investigate the use of infrared light to track an object in an image. The goal of the report was to build a full-scale prototype of a camera mount to understand what type of setup is ideal for delivering good tracking performance with infrared (IR) light, an IR-camera and a reflector. LÄS MER

  4. 18. Mätosäkerhet i höjd vid stationsetablering med RUFRIS

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Erik Melcher; [2020]
    Nyckelord :RUFRIS; fri station; stationsetablering; nätverks-RTK; höjdmätning;

    Sammanfattning : Traditionellt är avvägning den metod som används vid höjdsättning av nyetablerade stompunkter. Men det är en teknik som kan vara både kostsam och tidskrävande, i synnerhet då avståndet till närmsta anslutningsnät är ansenligt. Den här studien undersöker en alternativ metod till avvägning, RUFRIS-metoden. LÄS MER

  5. 19. Acoustic Characterization of the Cellulose-coated Perfluorocarbon Droplets based on Phase Velocity Measurements

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Emma Lindroth; [2020]
    Nyckelord :Ultrasound; Droplets; Contrast agent; Cellulose; Perfluorocarbon; Acoustic characterization; Non-destructive evaluation; Phase velocity; Bulk modulus; Compressibility;

    Sammanfattning : Today, microbubbles are one of the most commonly used ultrasound contrast agents, since their high compressibility results in a strongly scattered signal. Despite this advantage, microbubbles experience limitations by the decreased stability and large diameter. LÄS MER

  7. 20. Design and Mathematical Modelling of a Solar Carport with Flat Reflector

    Master-uppsats, Högskolan Dalarna/Energiteknik

    Författare :Suriya Srinivasan; [2019]
    Nyckelord :Reflector; PV system; Solar Carport;

    Sammanfattning : As the world is moving towards the renewable energy, there is increase in usage of the electric vehicles in transport sector. This has led to more consumption of electricity from the grid and thus affecting its stability. LÄS MER