Sökning: "time slice maps"

Hittade 5 uppsatser innehållade orden time slice maps.

  1. 1. Synthesizing of brain MRE wave data

    Master-uppsats, KTH/Medicinsk avbildning

    Författare :Maryia Yuliuhina; [2023]
    Nyckelord :MR elastography; brain MRE; synthetic data; computational modeling; shear wave elastography; MR-elastografi; hjärn MRE; syntetiska data; beräkningsmodellering; skjuvvåg elastografi;

    Sammanfattning : Magnetic resonance elastography (MRE) is an imaging technique that allows for non-invasive access to the physical properties of body tissues. MRE has great potential, but it is difficult to conduct research due to the time-consuming estimation of stiffness maps, which could be speeded up by using neural network. LÄS MER

  3. 2. Detecting Cardiac Pulsatility and Respiration using Multiband fMRI

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Joakim Jonsson; [2018]
    Nyckelord :fMRI; multiband; cardiac pulsation; respiration; correlation analysis; neuroimaging;

    Sammanfattning : Purpose: Arterial stiffening poses an increased risk of cerebrovascular diseases, cognitive impairments, and even dementia as cardiac pulsations reach further into the brain causing white matter hyperintensities and microbleeds. Therefore it is of interest to obtain methods to estimate and map cardiac related pulsatility in the brain. LÄS MER

  4. 3. Classification of Drill Core Textures for Process Simulation in Geometallurgy : Aitik Mine, Sweden

    Master-uppsats, Luleå tekniska universitet/Mineralteknik och metallurgi

    Författare :Glacialle Tiu; [2017]
    Nyckelord :ore texture; texture classification; Machine Learning; drill core photography; scanning electron microscope; X-ray microtomography; mineral mapping; stereology;

    Sammanfattning : This thesis study employs textural classification techniques applied to four different data groups: (1) visible light photography, (2) high-resolution drill core line scan imaging (3) scanning electron microscopy backscattered electron (SEM-BSE) images, and (4) 3D data from X-ray microtomography (μXCT). Eleven textural classes from Aitik ores were identified and characterized. LÄS MER

  5. 4. Visualizing the volcanic history of the Kaapvaal Craton using ArcGIS

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Max Adolfsson; [2014]
    Nyckelord :ArcGIS; time slice maps; geochronology; correlations; Kaapvaal Craton; Earth and Environmental Sciences;

    Sammanfattning : The Kaapvaal Craton comprises a piece of well preserved Archaean crust making it a valuable subject in the pursuit of palaeocontinental reconstruction. The aim of this study was to visualize the volcanic events of the craton through time using arcGIS and available geochronological data. LÄS MER

  7. 5. Development and implementation of air quality data mart for Ontario, Canada : a case study of air quality in Ontario using OLAP tool

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Samira Muhammad; [2010]
    Nyckelord :OLAP; data mart; multidimensional modeling; air quality; ambient air quality criteria; Canadian environment sustainability indicator; Earth and Environmental Sciences;

    Sammanfattning : This thesis describes the development and implementation of Air Quality Data Mart for Ontario Canada using Online Analytical Processing (OLAP) tool. It is followed by a case study which presents comparisons of air quality between the urban and rural areas, peak and non-peak hours, working days and weekends for various cities in Ontario. LÄS MER