Sökning: "Molnar"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet Molnar.

  1. 1. Generalised stacking fault energy and plastic deformation of austenitic stainless steels

    Författare :David Molnar; Levente Vitos; Guocai Chai; Dávid Sándor Molnár; Högskolan Dalarna; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; stacking fault energy; stainless steel; plasticity; deformation; ab initio; Steel Forming and Surface Engineering; Stålformning och ytteknik; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : Austenitic stainless steels are primarily known for their exceptional corrosion resistance. They have the face centred cubic (FCC) structure which is stabilised by adding nickel to the Fe-Cr alloy. The Fe-Cr-Ni system can be further extended by adding other elements such as Mn, Mo, N, C, etc. in order to improve the properties. LÄS MER

  2. 2. Stacking fault energy and deformation behaviour of austenitic stainless steels: a joint theoretical-experimental study

    Författare :Dávid Sándor Molnár; Levente Vitos; Göran Engberg; Guocai Chai; David Molnar; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; austenitic stainless steel; deformation properties; stacking fault energy; electron backscatter diffraction; ab initio; Materials Science and Engineering; Teknisk materialvetenskap; Steel Forming and Surface Engineering; Stålformning och ytteknik;

    Sammanfattning : Austenitiska rostfria stål är främst kända för sin exceptionella korrosionsbeständighet. De har en ytcentrerad kubisk (FCC) struktur som stabiliseras genom att nickel, mangan eller kväve tillsätts till Fe-Cr legeringen. Fe-Cr-Ni-systemet kan utökas ytterligare genom tillsats av andra element såsom Mo, Cu, Ti, C, etc. LÄS MER

  3. 3. Structure and Function of the Retina in Children Born Extremely Preterm and in Children Born At Term

    Författare :Anna Molnar; Gerd E. Holmström; Eva K. B. Larsson; Sten O. Andréasson; Christopher J. Lyons; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; optical coherence tomography; multifocal electroretinogram; full-field electroretinography; extremely preterm children; retinopathy of prematurity; gestational age; gender; Ophtalmology; Oftalmiatrik;

    Sammanfattning : Background: Optical coherence tomography (OCT), multifocal electroretinography (mfERG) and full-field electroretinography (ffERG) give important information about retinal structure and function.Purpose: To collect normative data of macular Cirrus Spectral domain (SD)-OCT assessments and of mfERG measurements of healthy children (papers I and II). LÄS MER

  4. 4. Hyperglycemia in Experimental Cerebral Ischemia

    Författare :Maria Molnar; Fredrik Lennmyr; Sten Lindahl; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; brain ischemia; cardiac arrest; cytokines; gene expression; glucose; hyperglycemia; microarray; oxidative stress; pigs; rats; reperfusion; resuscitation S100β; Anaesthesiology and Intensive Care; Anestesiologi och intensivvård; Neuroscience; Neurovetenskap;

    Sammanfattning : Cerebral ischemia is a life-threatening condition associated with a substantial morbidity and mortality. Hyperglycemia, a common coexisting phenomenon in both stroke and cardiac arrest (CA), may further aggravate ischemic brain injury. To date, the therapeutic possibilities are lim-ited and the search for new treatment modalities is warranted. LÄS MER

  5. 5. In-plane tension behaviour of masonry

    Författare :Miklos Molnar; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; restrained shrinkage; cracking; movement joints; Building construction; mortar joints; KstrMasonry; masonry; in-plane tension; Byggnadsteknik; murverk; sprickor; krympning; dilatationsfogar;

    Sammanfattning : The main purpose of the present work is to increase knowledge of in-plane tension behav-iour of masonry and develop a model able to describe the impact of parameters influencing cracking caused by restrained shrinkage. In the process the mechanism of load transfer between units and mortar joints is described. LÄS MER