Sökning: "prisms"

Visar resultat 1 - 5 av 17 uppsatser innehållade ordet prisms.

  1. 1. A field-based estimation of eagle predation and scavenging on reindeer calves : towards mitigating human-wildlife conflicts

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Aemilius Johannes Van Der Meiden; [2023]
    Nyckelord :aquila chrysaetos; haliaeetus albicilla; rangifer tarandus; predation; repelling; human-wildlife conflict;

    Sammanfattning : Eagle predation on semi-domesticated reindeer (Rangifer tarandus) calves, both golden (Aquila chrysaetos) and white-tailed eagle (Haliaeetus albicilla) is a well-known issue in Sweden. However, there is a knowledge gap regarding the balance between scavenging and hunting and the role that each of the eagle species has in this issue. LÄS MER

  3. 2. Multi-spectral X-ray imaging with a laser-plasma accelerator

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Andrea Angella; [2022]
    Nyckelord :Multi-spectral imaging; single-photon counting; X-ray absorption spectroscopy; XAS; LWFA; laser-wakefield acceleration; K-edge; imaging; metal-detection algorithm; Physics and Astronomy;

    Sammanfattning : This master thesis focuses on the creation of an algorithm to perform multispectral imaging of a metallic target using X-rays. The generation of an ultrashort high-power low-divergent X-ray beam is performed by means of a Ti:Sapphire laser driven wake-field plasma accelerator. LÄS MER

  4. 3. Ökad omvärldsuppfattning för stridsfordon 9040C

    Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Mathilda Bengmark; Emil Bergström; [2022]
    Nyckelord :;

    Sammanfattning : Stridsfordon 9040C är ett pansarskyttefordon som används inom den Svenska Försvarsmakten och som har en besättning på tre personer samt en skyttegrupp på sex personer. Samtliga i fordonet har begränsad omvärldsuppfattning vid nedluckat läge vilket motiverar till att köra i uppluckat läge. LÄS MER

  5. 4. Measuring the Pulse Duration and the Time-Dependent Polarisation State of Ultrashort Laser Pulses with the D-Scan Technique

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Atomfysik

    Författare :Daniel Díaz Rivas; [2022]
    Nyckelord :pulse characterisation; ultrashort; laser; femtosecond; dispersion scan; polarisation; wave plate; temporal reconstruction; electric field reconstruction; time-dependent polarisation; polarisation gate; Physics and Astronomy;

    Sammanfattning : Ultrashort laser pulses with time-dependent polarisation states have many applications, such as the generation of isolated attosecond pulses and the study of the optical chirality of molecules. In this project the polarisation gate, built from two quarter-wave plates of different orders, is thoroughly characterised in experiment and simulation. LÄS MER

  7. 5. Investigation of a New Method for Drone Dazzling Using Laser

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Jens Grundmark; [2021]
    Nyckelord :Drone countermeasure; Risley prisms; Camera dazzling; Laser;

    Sammanfattning : Drones have become more common, and are commercially available for consumers. Small drones can be used for unauthorized information gathering, or to cause disruptions. This has created a need for safe, effective countermeasures against drones. In this thesis, a method for countermeasures against drone imaging is investigated. LÄS MER