Sökning: "Straight Edge"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden Straight Edge.

  1. 1. Methods for determining focal point and delay for ultrasound arrays and multichannel electronics

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Svante Rosenlind; [2023]
    Nyckelord :Focusing algorithms; k-wave; Spatiotemporal inverse filter; Gerchberg- Saxton algorithm; Focused ultrasound; Technology and Engineering;

    Sammanfattning : High intensity focused ultrasound is a growing technique for tissue ablation, among other uses, and given its destructive capabilities, there is a need for control of where the energy is delivered. There exist a number of methods for focusing such ultrasound arrays, but these often assume prior knowledge of the impulse response, or require extensive full-system simulations. LÄS MER

  3. 2. Development of a Low Noise Drone Propeller Using CFD Simulations

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Axel Schulz; [2023]
    Nyckelord :Drone Propeller Low Noise Computational Fluid Dynamics CFD; Technology and Engineering;

    Sammanfattning : Noise pollution generated by drones has in recent years become a concern for humans and wildlife and has in some regions resulted in regulatory backlash. This thesis investigates the possibilities of developing a low noise drone propeller using computational fluid dynamics (CFD) simulations. LÄS MER

  4. 3. Effektivisering av kedjesågning

    M1-uppsats, KTH/Produktionsutveckling

    Författare :Pajtim Haziri; [2023]
    Nyckelord :Cutting Teeth; Saw Chains; Chainsaw; Speed; Power; Modification; Original; Faster; Increased; energy consumption; Skärtänder; Sågkedjor; Kejdesåg; Effekt; Modifikation; Original; Energiförbrukning;

    Sammanfattning : Logosol AB i Härnösand, Sverige är en sågverkstillverkare som bland annat utvecklar bandsågar och kedjesågverk. Målet med detta examensarbete är att effektivisera kedjesågning i längsgåendesågning genom att justera skärtänderna på sågkedjor. LÄS MER

  5. 4. Simulations of experimental crack development in ceramic material with notched specimen

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Clas Dahlin; [2022]
    Nyckelord :Solid Mechanics; Fracture mechanics; Ceramics; Dynamics; Ballistics; Hållfasthetslära; Brottmekanik; Keramer; Dynamik; Ballistik;

    Sammanfattning : Low-density armour often uses ceramic materials, as their high compressive strength and relatively low weight make the material ideal for moving in the field. The ballistic protection works by redirecting the plastic flow of the projectile radially, which reduces penetration. LÄS MER

  7. 5. Att lära sig sluta missbruka : En studie av kamratstöd på Internet

    Kandidat-uppsats, Malmö universitet/Institutionen för socialt arbete (SA)

    Författare :Matilda Haglund; [2021]
    Nyckelord :drug abuse; internet communities; peer support; outsiders; social learning theory;

    Sammanfattning : Traditional help services have problems reaching out to people with substance abuseproblems. Some individuals choose to seek help for recovery from anonymous others online. LÄS MER