Sökning: "source reconstruction"

Visar resultat 1 - 5 av 98 avhandlingar innehållade orden source reconstruction.

  1. 1. Radome Diagnostics: utilizing Source Reconstruction based on Surface Integral Representations

    Författare :Kristin Persson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nondestructive testing; source reconstruction; diagnostics; radome; phase reconstruction; insertion phase delay IPD ; equivalent surface currents;

    Sammanfattning : In this thesis, an inverse source reconstruction method with great potential in radome diagnostics is presented. A radome is a cover that encloses an antenna in order to protect it from environmental influences. LÄS MER

  3. 2. Assessment of mobile radiometry data in radiological emergencies using Bayesian statistical methods

    Författare :Antanas Bukartas; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mobile gamma spectrometry; Gamma spectrometry; Orphan source; lost source; Ionizing radiation; Bayesian; Activity; position; activity density; reconstruction; UAV; car-borne;

    Sammanfattning : Nuclear technology and the use of radiation sources have been extensively adopted in the modern world. Despite that, a number of radiological accidents, significantly affecting population and the environment, has happened. Few of the most known are accidents in Chernobyl and Fukushima nuclear power plants. LÄS MER

  4. 3. "Ett snäpp högre" : En studie av historielärares hanterande av tankeredskap

    Författare :Martin Estenberg; Martin Stolare; Johan Samuelsson; Cecilia Axelsson Yngvéus; Karlstads universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; teaching history; historical thinking; historical thinking concepts; procedural concepts; procedural knowledge; historical knowledge; source; cause and consequence; stimulated elicitation; reconstruction; construction.; Tankeredskap; historieundervisning; historiskt tänkande; stimulated elicitation; processkunskaper; historisk kunskap; källor och källkritik; orsak och konsekvens; History; Historia;

    Sammanfattning : Abstract The aim with this study is to examine how practicing history teachers in upper secondary school deal with historical thinking concepts. The three main questions are: which concepts do teachers use in their courses and when do they use them? How can teachers’ use of different historical thinking concepts be described in terms of reconstruction and construction? What factors influence teachers when they work with historical thinking concepts? To answer these questions, the material, for example tests, lesson plans and notes of seven teachers has been analyzed. LÄS MER

  5. 4. Byggnaden som kunskapskälla : The building as a source of knowledge

    Författare :Gunnar Almevik; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Architectural conservation; historic buildings; building survey; survey methods; historical sources; building documentation; mapping; architectural drawing; architectural analysis; forensic conservation; reconstruction; historical work process; traditional building craft;

    Sammanfattning : Buildings are indeed mute, yet many historians and architects claim that they can nevertheless speak. The challenge is to understand their language. This thesis examines the building as a source of knowledge. LÄS MER

  7. 5. Unsupervised Segmentation of Head Tissues from Multi-Modal Magnetic Resonance Images: With Application to EEG Source Localization and Stroke Detection

    Författare :Mahmood Qaiser; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stroke; EEG source localization; Image segmentation; reconstruction; magnetic resonance; brain;

    Sammanfattning : The automated segmentation or labeling of individual tissues in magnetic resonance (MR) images of the human head is an essential first step in several biomedical applications. The resulting segmentation yields a patient-specific labeling of individual tissues that can be used to quantitatively characterize these tissues (e.g. LÄS MER