Sökning: "Daniel Eriksson"

Visar resultat 6 - 10 av 32 avhandlingar innehållade orden Daniel Eriksson.

1. 6. Numerical models for degradation of concrete in hydraulic structures due to long-term contact with water

   Författare :Daniel Eriksson; Anders Ansell; Richard Malm; Erik Nordström; Katja Fridh; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; degradation; deterioration mechanisms; hydraulic structures; air-entrained concrete; multiphase model; long-term moisture conditions; pore size distribution; freezing; partially saturated; finite element method; Civil and Architectural Engineering; Byggvetenskap;

   Sammanfattning : The durability of concrete is of major concern in all types of concrete structures where the combined effect of exposure conditions and the type and quality of the concrete material usually determines the rate of degradation. Furthermore, there are synergy effects between different deterioration mechanisms, which means that the combined rate of degradation is higher than the sum of the individual rates of each mechanism. LÄS MER

3. 7. Perturbative Methods in General Relativity

   Författare :Daniel Eriksson; Michael Bradley; Gert Brodin; Lászlo Árpád Gergely; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; General relativity; perturbation theory; photon-photon scattering; cosmology; FRW models with cosmological constant; Bianchi type V; slowly rotating stars; Hartle formalism; Physics; Fysik;

   Sammanfattning : Einstein's theory of general relativity is a cornerstone in the process of gaining increased understanding about problems of gravitational nature. It can be applied to problems on the huge length scales of cosmology and as far as we know it does not break down before the Planck scale is approached. LÄS MER

4. 8. Adipose markers of metabolic outcome after weight loss

   Författare :Daniel Eriksson Hogling; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Adipose tissue is closely linked to metabolic disturbances in obesity. Bariatric surgery such as roux-en-Y gastric bypass (RYGB) remains the most effective treatment of obesity and obesity-related disease. LÄS MER

5. 9. Energy and Environmental Factors in Food and Beverage Production Systems : An Analysis of Tomatoes, Whisky, and Beer

   Författare :Daniel Danevad; Karl Hillman; Ola Eriksson; Hanna Tuomisto; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; environmental systems analysis; waste management; import; local resources; food production; beverage production; circularity; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : Given the anticipated global population of approximately 10 billion by 2050, the task of ensuring adequate sustenance for all within the constraints of Earth's limited resources presents a significant challenge. The production of food and beverages demands considerable energy investment, as well as other essential resources such as water and nutrients. LÄS MER

7. 10. The influence of social relationships and leisure activity on adult cognitive functioning and risk of dementia : Longitudinal population-based studies

   Författare :Daniel Eriksson Sörman; Michael Rönnlund; Anna Sundström; Lars-Göran Nilsson; Martin Lövdén; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cognitive functioning; cognition; memory; dementia; Alzheimer’s disease; cognitive reserve; reverse causality; old age; middle age; leisure activity; social relationships; social network; longitudinal; Psychology; psykologi;

   Sammanfattning : Today, as we live longer, dementia diseases are becoming more prevalent around the world. Thus, further knowledge of how to maintain levels of cognitive functioning in old age and how to identify factors that postpone the onset of dementia are of acute interest. Lifestyle patterns and social life are important aspects to consider in this regard. LÄS MER