Sökning: "Exact analytical"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden Exact analytical.

  1. 1. Spatial analysis of lipids in tissue samples applying mass spectrometry imaging

    Författare :Masoumeh Dowlatshahi Pour; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SIMS; MALDI; Mass spectrometry imaging; Lipid; ME-SIMS; Sample preparation;

    Sammanfattning : Lipids are important naturally occurring components in all living cellular organisms. They serve as the main building blocks of cellular membranes, participate in many signaling pathways and are also stored as an energy source. LÄS MER

  3. 2. Modelling of fracture toughness using peridynamics : A Study of J-integral, essential work and homogenisation

    Författare :Christer Stenström; Pär Jonsén; Kjell Eriksson; Ugo Galvanetto; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Peridynamics; J-integral; Essential work of fracture; Nonlocal methods; Meshless; Meshfree; Fracture; Crack tip; Exact analytical; Center cracked tension; Double edge notched tensile; fracture toughness; Peridynamik; Brottmekanik; Sprickspets; Brottseghet; Spänningsintensitet; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Fracture toughness is one of the most important properties of a material. Being able toaccurately estimate the energy that goes into forming new crack surfaces is essential for the development of new materials, quality assurance, structural monitoring and failure analysis. LÄS MER

  4. 3. Fractionation of the stable silicon isotopes studied using MC-ICP-MS : analytical method developments and applications in geochemistry

    Författare :Emma Engström; Ben Reynolds; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : In spite of the high Si abundance in natural systems, expected significant mass-dependent fractionations, and the importance of the element in many areas of the Earth sciences (focusing on e.g. LÄS MER

  5. 4. The Urban Tapestry : Essays on the Relationship Between Social Networks and Residential Segregation

    Författare :Laura Fürsich; Maria Brandén; Benjamin Jarvis; Sarah Valdez; Peter Rich; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social networks; Segregation; Agent-based modeling; Social infrastructure; Residential choice; Analytical sociology; Register data;

    Sammanfattning : Dominant explanations of segregation argue that patterns of spatial residential sorting are shaped by the aggregation of individual residential choices, guided by discrimination, differences in resources, and preference-based explanations of neighborhood ethnic composition. However, research on social networks indicates that social influence can serve as a driver of collective outcomes that result in social organization. LÄS MER

  7. 5. Fractionation of the stable silicon isotopes : analytical method developments and selected applications in geochemistry

    Författare :Emma Engström; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : During the last few decades, variations in the 'natural' isotopic abundances of stable elements (termed 'fractionation') have received considerable interest from the scientific community. Though analytical methods and techniques for the measurement of isotopic abundances with adequate figures of merit have been available for light elements (e.g. LÄS MER