Sökning: "Jonas Dahlberg"

Hittade 5 avhandlingar innehållade orden Jonas Dahlberg.

  1. 1. Genetic predisposition to salt sensitivity and cardiovascular disease

    Författare :Jonas Dahlberg; Kardiovaskulär forskning - hypertoni; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NEDD4L; SGK-1; CVD; ischemic stroke; genetics; CVD deaths; myopcardial infarction;

    Sammanfattning : Abstract The average amount of salt ingested is about 10 grams daily compared to less than one gram in pre-historic life. Salt, althought somewhat debated, is considered a risk factor for elevated blood pressure and end organ damage beyond the blood pressure effect. LÄS MER

  3. 2. Modeling of the mechanical behavior of interfaces by using strain gradient plasticity

    Författare :Carl F. O. Dahlberg; Jonas Faleskog; Christian F. Niordson; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. On the Role of Interfaces in Small Scale Plasticity

    Författare :Carl F. O. Dahlberg; Jonas Faleskog; Lars Pilgaard-Mikkelsen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The strong evidence for a size dependence of plastic deformation in polycrystalline metalsis the basis for the research presented in this thesis. The most important parameter for this, and arguably also the most well known, is the grain size. As the size of the grains in a microstructure is decreased the yield stress increases. LÄS MER

  5. 4. Modeling framework for ageing of low alloy steel

    Författare :Magnus Boåsen; Pål Efsing; Jonas Faleskog; Carl F. O. Dahlberg; Christian Niordson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Low alloy steel; length scale effects; size effects; plasticity; cleavage fracture; brittle fracture; weakest link; ageing; weld metal; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : Ageing of low alloy steel in nuclear applications commonly takes the form as a hardening and an embrittlement of the material. This is due to the evolution of the microstructure during irradiation and at purely thermal conditions, as a combination or separate. LÄS MER

  7. 5. A Fracture Mechanics Approach to Study Hydrogen Embrittlement in High Strength Martensitic Steels

    Författare :Armin E. Halilović; Pål Efsing; Jonas Faleskog; Carl F.O. Dahlberg; Covadonga Betegon; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Mechanics; Hållfasthetslära;

    Sammanfattning : High strength steels that are subjected to hydrogen experience embrittlement where the mechanical properties are reduced, and premature failure of components may occur. Although the phenomenon has been recognized for over 150 years, it is not clear what drives embrittlement. LÄS MER