Essays about: "noise measurements"

Showing result 11 - 15 of 366 essays containing the words noise measurements.

  1. 11. Optimization of b-value Acquisition and Parameter Estimation of Intravoxel Incoherent Motion Measurements

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Ivan Rashid; [2023]
    Keywords : Medicine and Health Sciences;

    Abstract : Radiotherapy is commonly used for cancer treatment, given to approximately half of all cancer patients in Sweden. Despite its widespread usage, there is currently no non-invasive and reliable imaging method that can identify regions of radiation resistance. READ MORE

  3. 12. Phase Noise Performance of a PLL Frequency Synthesizer when Powered by Silent Switchers

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

    Author : Sampriti Basu; [2023]
    Keywords : Silent Switcher; PLL synthesizer; Phase noise; PCB implementation.; Silent Switcher; PLL-synthesizer; fasbrus; PCB-implementering.;

    Abstract : In use today are ‘normal’ DC-DC switching regulators with considerable switching noise and ringing, which is bad for noise-sensitive applications. This project involves a solution based on ‘Silent Switchers’ to prove its effectiveness in reducing noise. READ MORE

  4. 13. Reprocessing weather data from Smart Stake weather stations on the Greenland ice sheet

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Leon Lovén; [2023]
    Keywords : ice sheet; data processing; weather station; Greenland; GEUS; Smart Stake; istäcke; databehandling; väderstation; Grönland; GEUS;

    Abstract : To identify a climate trend, a lot of data is required for the conclusion to be accurate. A trend can require 30 years worth of measurements in order to say anything with certainty about how the climate is changing. It is therefore important to utilize every source of data in climate research. READ MORE

  5. 14. Phase Unwrapping MRI Flow Measurements

    University essay from Uppsala universitet/Avdelningen Vi3

    Author : Mio Liljeblad; [2023]
    Keywords : phase unwrapping; computer vision; cine MRI; NMR; flow measurements; velocity encoding; venc; energy minimization; magnetic resonance; cardiac MRI; sinotubuar junction; pulmonary artery; ascending descending aorta; laplacian algorithm; iterative graph cuts; IGC; sequential tree-reweighted message passing; TRW-S; velocity to noise ratio; VNR; retrospective wrapping; energy formulation;

    Abstract : Magnetic resonance images (MRI) are acquired by sampling the current of induced electromotiveforce (EMF). EMF is induced due to flux of the net magnetic field from coherent nuclear spins with intrinsic magnetic dipole moments. READ MORE

  6. 15. Acoustic Characterization of Catalyst

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Surachit Dokson; [2023]
    Keywords : ;

    Abstract : The WHO has set a sound level threshold of 55 dB, beyond which noise is considered harmful to humans when exposed for an extended period of time. It is, however, estimated by the European Environmental Agency that over 110 million people in the EU are regularly exposed to levels of traffic noise above 55 dB. READ MORE