Sökning: "parent material"

Visar resultat 1 - 5 av 87 avhandlingar innehållade orden parent material.

  1. 1. Becoming a Parent of a Child with Intellectual Disability

    Författare :Petra Boström; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :Parent; Perceptions; Parental Representations; Temperament; Parent Agreement.;

    Sammanfattning : When a child is diagnosed with intellectual disability (ID) parents’ reactions differ; some parents experience increased levels of stress and depression, while others find meaning in the duty of caring for a child with special needs. Parents’ reactions to diagnosis have also been found to be versatile within the person, with many parents expressing emotions that may be contradictory. LÄS MER

  2. 2. Properties in New Complex Perovskite-Related Materials, a Matter of Composition and Structure

    Författare :Samrand Shafeie; Gunnar Svensson; Jekabs Grins; John T. S. Irvine; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Perovskite; XANES; XRPD; NPD; TEC; TEM; SEM; TGA; SAED; HREM; thermal expansion; Seebeck coefficient; electronic conductivity; SOFC materials; magnetic susceptibility; Perovskit; XANES; XRPD; NPD; TEC; TEM; SEM; TGA; SAED; HREM; termisk expansion; Seebeck koefficient; elektrisk ledningsförmåga; SOFC material; magnetiska egenskaper; materialkemi; Materials Chemistry;

    Sammanfattning : This PhD thesis presents investigations of perovskite-related compounds in systems of interest for applications in components in solid oxide fuel cells. The compound compositions derive from substitutions in the parent compounds LaCoO3, LaCrO3 and SrFeO3. LÄS MER

  3. 3. Biogeochemical Interactions between Soil, Soil Solution and Stream Water

    Författare :Jenny Vestin; Arne Stuanes; Mittuniversitetet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; discharge area; dissolved organic carbon; Norway spruce; parent material; recharge area; Chemistry; Kemi;

    Sammanfattning : .... LÄS MER

  4. 4. Traces in Earth's geological record of the break-up of the L-chondrite parent body 470 Ma

    Författare :Carl Alwmark; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; L chondrite; Middle Ordovician; extraterrestrial material; meteorite flux; Sweden;

    Sammanfattning : This thesis deals with signatures in sediments on Earth related to the L-chondrite parent body break-up event at 470 Ma. The aim of this thesis is twofold: (1) investigate if the increased flux of extraterrestrial material to Earth, following the disruption of the L-chondrite parent body included larger, asteroid-sized bodies (2) try to develop new methods and tools for finding and classifying relict cosmic material in sediments. LÄS MER

  5. 5. Industrial Alloys Studied by Surface Sensitive Techniques

    Författare :Lisa Rullik; Synkrotronljusfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; aluminum alloy; brazing; AA 6063; duplex stainless steel; SAF 2507; XPS; APXPS; XPEEM; XRR; microstructure; aluminiumlegering; hårdlödning; AA 6063; duplexstål; SAF 2507; XPS; APXPS; XPEEM; XRR; mikrostruktur;

    Sammanfattning : This thesis reports on surface studies of industrial materials whose importance for society manifests in the vast range of applications. In industrial materials alloying is performed in order to improve the parent material's physical and mechanical properties such as strength, corrosion and wear resistance, as well as high temperature performance in comparison to the pure metal. LÄS MER