Sökning: "Operational eciency"

Hittade 5 uppsatser innehållade orden Operational eciency.

  1. 1. Experimental study on stepped spray deflectors for planning hull

    Master-uppsats, KTH/Marina system

    Författare :Luca Castaldi; [2020]
    Nyckelord :;

    Sammanfattning : Planning vessels can reach high operational speeds thanks to their hull design. Some hull forms will develop large volumes of spray attached to the hull surface. The whisker spray is a thin layer consisting in droplets of water which can ac-count for a large proportion of the total resistance. LÄS MER

  3. 2. Motor system design for large UAV

    Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Daniel Hedlund; [2017]
    Nyckelord :;

    Sammanfattning : This thesis investigates the viability of creating a fully electrical motorsystem for a large UAV capa-ble of VTOL. As of today only relatively small UAV's use fully electrical motors as their only sourceof propulsion, larger UAV's have to rely on more traditional combustion or jet engines. LÄS MER

  4. 3. The Fundamentals to Fuel the Future

    Kandidat-uppsats, KTH/Energiteknik

    Författare :Fabian Källström; [2016]
    Nyckelord :;

    Sammanfattning : The following report is a comparison study of the alternative for the future automobile sector, where the fuels in focus are bioethanol, bio gas, electrical vehicles and hydrogen gas. Through this comparison one or multiple of fuels will be decided to be the better solution for a future without greenhouse emissions. LÄS MER

  5. 4. Operation of the expanded Blue Metro Line in Stockholm

    Master-uppsats, KTH/Transportplanering, ekonomi och teknik

    Författare :Soumela Peftitsi; [2016]
    Nyckelord :Train scheduling; Metro operation; Operational eciency; Urban rail;

    Sammanfattning : Since the population growth of Stockholm Region is rapid, leading to larger demand on Public Transport and especially metro, four Municipalities of the Region have agreed on the expansion of the metro network. Blue metro line will be extended to Nacka and Hagsatra in the south and Barkarby in the north of the Swedish capital. LÄS MER

  7. 5. Micro-Power Inverter-Based Continuous-Time Sigma-Delta Modulator for Biosensor Applications

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Jiazuo Chi; [2014]
    Nyckelord :;

    Sammanfattning : Biosensor applications have made promising progress during the last decade, presenting potentials and challenges at the same time. Meanwhile, digital signal processing (DSP) has become even more powerful than before, due to Moore's Law. LÄS MER