Essays about: "Oljud"

Showing result 1 - 5 of 10 essays containing the word Oljud.

  1. 1. DRONAR: Obstacle echolocation using ego-noise

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Henrik Nilsson; [2023]
    Keywords : Drone; Autonomous systems; Obstacle avoidance; Sound; Noise; Planning; SONAR; Ego-noise; Multi-rotor aerial vehicle; Unmanned areal vehicle; Drönare; Autonoma system; Hinderundvikning; Ljud; Oljud; Planering; SONAR; Egenljud; Multirotorfordon; Obemannat luftfordon;

    Abstract : You do not want your drone to crash. Therefore, safety systems should be put in place to prevent such an event, and obstacle avoidance is a major part of this. Today, the most successful techniques use cameras or light detection and ranging (LIDAR) to find and avoid obstacles; but to improve resiliency, multiple systems should be used. READ MORE

  3. 2. Development of Acoustic Simulation Methods for Exhaust Systems

    University essay from KTH/Optimeringslära och systemteori

    Author : Christin Friberg Femling; [2021]
    Keywords : Optimization; Acoustic Optimization; Systems Engineering; Engine Acoustics; Vehicle Acoustics; Internal Combustion Engine Acoustics; Exhaust Orifice Noise; Pass-by Noise; Optimering; Akustisk optimering; Systemteknik; Motorakustik; Fordonsakustik; Akustik hos Förbränningsmotorer; Avgasljud;

    Abstract : Noise pollution is a growing concern due to its harmfulness to human health. Heavy vehicles powered by internal combustion engines stands for a major part of the environmental noise, why noise reduction is an increasing priority in enginve development. READ MORE

  4. 3. Characterization of InAs-Al semiconductor-superconductor hybrid devices

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Markus Aspegren; [2020]
    Keywords : quantum dot; superconductivity; quantum transport; josephson junction; spectroscopy; yu-shiba-rusinov; hybrid devices; sub-gap states; quantum computer; majorana bound state; bogoliubov quasiparticle; Physics and Astronomy;

    Abstract : In this thesis we study charge and spin transport through InAs-Al nanowire superconductor-semiconductor hybrid devices. We focus on assessing the quality of the InAs-Al contact interface when using a weak HCl acid to wet-etch the nanowire surface prior to metal evaporation. READ MORE

  5. 4. Two-dimensional Study of Blade Profiles for a Savonius Wind Turbine

    University essay from Uppsala universitet/Elektricitetslära

    Author : Johanna Sundberg; Martina Lundberg; Julia Solhed; Aikaterini Manousidou; [2020]
    Keywords : Savonius rotor; vertical axis wind turbines; Ansys Fluent; k-omega SST; overlap ratio; blade arc angle;

    Abstract : A Savonius wind turbine is a self-starting vertical axis rotor. It can be designed to be compact in size and also produces less noise which makes it suitable to integrate into urban spaces such as rooftops and sign-poles. READ MORE

  6. 5. Noise-free distortion pedal for electric guitars : Designing and constructing a unique distortion pedal for live playing guitarists

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Tobias Almqvist; David Nordberg; [2019]
    Keywords : Electric guitar; effect pedal; audio muting; noise removal; noise gate; Elektrisk gitarr; effektpedal; ljuddämpning; brusbortagning; brusgrind;

    Abstract : Guitarists using effect pedals to alter the way their guitar sounds often face the problem of loud noise when they want their guitars to be completely silent. This can be the result of using a distortion pedal which works well when you’re playing, but not when you have a brief pause. READ MORE