Sökning: "signal intensity"

Visar resultat 21 - 25 av 123 uppsatser innehållade orden signal intensity.

  1. 21. Gadoliniumansamling hos patienter med multipel skleros samt implementering av artificiell intelligens vid magnetresonanstomografi

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för hälsa, lärande och teknik

    Författare :Sofia Lindström; Maja Becarevic; [2021]
    Nyckelord :Gadolinium; deposition; signal intensity; magnetic resonance imaging; Xray nurse; radiographer; artificial intelligence; deep learning; multiple sclerosis; Gadolinium; ansamling; signalintensitet; magnetresonanstomografi; röntgensjuksköterska; radiografi; artificiell intelligens; deep learning; multipel skleros;

    Sammanfattning : Introduktion: Uppskattningsvis 40% av alla magnetresonanstomografiska (MRT) undersökningar som görs i Europa och USA utförs med gadoliniumbaserade kontrastmedel. Under det senaste decenniet har det i flera studier uppmärksammats att ansamling av gadolinium sker i olika strukturer i hjärnan. LÄS MER

  3. 22. Analysis of comparative filter algorithm effect on an IMU

    Kandidat-uppsats,

    Författare :Johan Åkerblom Svensson; Joakim Gullberg Carlsson; [2021]
    Nyckelord :IMU; Vibration; autonomous driving; complementary filter; accelerometer; gyroscope;

    Sammanfattning : An IMU is a sensor with many differing use cases, it makes use of an accelerometer, gyroscope and sometimes a magnetometer. One of the biggest problems with IMU sensors is the effect vibrations can have on their data. The reason for this study is to find a solution to this problem by filtering the data. LÄS MER

  4. 23. Ly-α Dayglow on Uranus : Radiative Transfer Modelling

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Jahangir Jazayeri; [2021]
    Nyckelord :Uranus; Lyman-alpha; Ly-α; resonant scattering; Rayleigh scattering; interplanetary medium; ultraviolet; hydrogen; methane; parameter study; limb brightening; Voyager 2; Ultraviolet Spectrometer;

    Sammanfattning : Uranus is one of the least explored planets in our solar system. Event though the Uranian Ly-α emission has been a subject of study for decades, there is not a consensus on the sources contribution to the total signal. LÄS MER

  5. 24. Track Before Detect in Active Sonar Systems

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Johnny Ljung; [2021]
    Nyckelord :signal processing; active sonar systems; track-before-detect; target tracking; reverberation; signalbehandling; aktiva sonarsystem; spårning innan detektion; målspårning; reverberation;

    Sammanfattning : Detection of an underwater target with active sonar in shallow waters such as the Baltic sea is a big challenge. This since the sound beams from the sonar will be reflected on the surfaces, sea surface and sea bottom, and the water volume itself which generates reverberation. LÄS MER

  7. 25. Seeing Stars - Intensity Interferometry in the Laboratory and on the Ground

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Colin Carlile; [2021]
    Nyckelord :Stellar Physics Instrumentation Interferometry Cherenkov Telescope Array Intensity Interferometry; Physics and Astronomy;

    Sammanfattning : Context Since the time of Tycho Brahe astronomy has been an observing science defined by the quality of its instrumentation. The introduction of primitive telescopes by Galileo in 1609 began a period of development of ever-larger telescopes with greater measuring precision. LÄS MER