Sökning: "fixed pitch"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden fixed pitch.

  1. 1. PTZ Camera Tampering Correction Using IMUs

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Ludvig Hansson; Måns Lindeberg; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The Pan-Tilt-Zoom (PTZ) camera is a type of camera that covers large areas, up to 360°, in addition to zoom. Some of these cameras are susceptible to tampering, which means that an additional angle measurement feedback is necessary to detect such attempts. This thesis has evaluated the possibility of using MEMS-based IMUs to solve this problem. LÄS MER

  3. 2. Techno-economic study for a 50 MW PV plant in Nigeria

    Master-uppsats, Högskolan Dalarna/Energiteknik

    Författare :Jacob Kelly; [2021]
    Nyckelord :Photovoltaics; monofacial; bifacial; fixed mounting; single-axis tracking; inverter loading ratio; utility PV plant; solar farm; LCOE optimisation; Nigeria;

    Sammanfattning : As part of Nigeria’s drive to increase electricity production capacity and shift to renewable sources, a new 50 MW photovoltaic (PV) plant is proposed for a town in north-west Nigeria. Rather than using conventional monofacial modules and fixed mounting, it is of interest to consider a selection of new technologies which are attracting growing attention in the global utility PV market. LÄS MER

  4. 3. Analysis and Initial Optimization of The Propeller Design for Small, Hybrid-Electric Propeller Aircraft

    Master-uppsats, KTH/Flygdynamik

    Författare :Ali Alshahrani; [2020]
    Nyckelord :Electric; hybrid; Propeller; Optimization; variable pitch; fixed pitch; blades number; Eldrivet; hybrid; Propeller; Optimering; justerbar vinkel; fast vinkel; bladnummer;

    Sammanfattning : This thesis focuses on the optimization of the electric aircraft propeller in order to increaseflight performance. Electric aircraft have limited energy, particularly the electricmotor torque compared to the fuel engine torque. For that, redesign of the propeller forelectric aircraft is important in order to improve the propeller efficiency. LÄS MER

  5. 4. Perceptuell Tonhöjd : en undersökning om skillnaden mellan hur människor uppfattar sångröst och frekvensnivån som räknas ut av datoralgoritmer

    Kandidat-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Marilia Bognandi; Fredrik Wallén; [2014]
    Nyckelord :;

    Sammanfattning : Det finns idag diverse datorprogram som använder sig av olika typer av datoralgoritmer för att ta fram noter i sång som t.ex. ScoreCloud och Magic Stave. Dock är det inte trivialt för sådana program att approximera tonhöjden i sång. LÄS MER

  7. 5. The development of a vertical axis tidal current turbine

    Master-uppsats, KTH/Energiteknik

    Författare :Daniel Brinck; Nicklas Jeremejeff; [2013]
    Nyckelord :vertical axis; H-shaped; Darrieus; tidal current; turbine; matlab; double multiple streamtube model; optimization;

    Sammanfattning : Globally the amount of electricity produced each year is increasing significantly. Between 1980 and 2010 the average increase was 407 billion kWh per year. LÄS MER