Sökning: "ice growth"
Visar resultat 21 - 25 av 71 avhandlingar innehållade orden ice growth.
21. Freezing Temperature Flows in Railway Tunnels and its Consequence on the Rock Supporting Structure, the Rock and the Reinforcing Elements
Sammanfattning : Water in the surrounding rock mass flows into the tunnel via naturally occurring joints and via cracks caused by the blasting used to excavate the tunnel. The most common method in Sweden to reduce or prevent leakage problems are first and foremost the use of grouting. LÄS MER
22. Essays on Economic Modeling of Climate Change
Sammanfattning : Structural change in a two-sector model of the climate and the economy introduces issues concerning substitutability among goods in a two-sector economic growth model where emissions from fossil fuels give rise to a climate externality. Substitution is modeled using a CES-production function where the intermediate inputs differ only in their technologies and the way they are affected by the climate externality. LÄS MER
23. Frost-induced deterioration of concrete in hydraulic structures : Interactions between water absorption, leaching and frost action
Sammanfattning : Frost deterioration of concrete can result in severe consequences to the safety, durability and functionality of a structure since it impairs the strength of the concrete. Frost damage may occur to structures that are in contact with water and subjected to frost action. LÄS MER
24. Sjötransporter och regional omvandling : Regleringen av den norrländska vintersjöfarten 1940-1975
Sammanfattning : This licentiate thesis investigates the decision-making process behind the regulation of winter shipping along the coast of the northern part of Sweden, the Norrland region, in the period 1940-1975. The licentiate thesis examines two aspects of this decision-making process. LÄS MER
25. Traumatic high-load injuries in the adolescent spine. Clinical, radiological and experimental studies
Sammanfattning : Background: Disc degeneration and other radiological abnormalities are highly frequent among young athletes in sports with great demands on the back. It has also been reported that athletes with these abnormalities have more back pain than other athletes and non-athletes. LÄS MER