Sökning: "observational method"

Visar resultat 11 - 15 av 162 avhandlingar innehållade orden observational method.

1. 11. Simulating observational probes of reionization

   Författare :Hannes Jensen; Garrelt Mellema; Adam Lidz; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomy; astronomi;

   Sammanfattning : The time in the history of the Universe when the first stars and galaxies formed and ionized the gas in the intergalactic medium is known as the Epoch of Reionization. This transformative time period, which took place within the first billion years after the Big Bang, is still relatively unexplored due to the significant difficulties associated with observing so far back in time. LÄS MER

3. 12. Value of Information Analysis in Rock Engineering Investigations

   Författare :Miriam Zetterlund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Observational Method; Rock mass characterisation; Value of Information;

   Sammanfattning : A challenge in rock engineering is to strike a balance between a reasonable level of investigation and uncertainty in the geological conditions. Value of Information Analysis (VOIA) provides support for decisions about investigation strategies. LÄS MER

4. 13. On reliability-based design of rock tunnel support

   Författare :William Bjureland; Stefan Larsson; Fredrik Johansson; Johan Spross; Lars Rosén; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rock engineering; reliability-based design; Eurocode 7; observational method; tunnel engineering; Bergmekanik; sannolikhetsbaserad dimensionering; Eurokod 7; observationsmetoden; tunnelbyggnation.; Byggvetenskap; Civil and Architectural Engineering;

   Sammanfattning : Tunneling involves large uncertainties. Since 2009, design of rock tunnels in European countries should be performed in accordance with the Eurocodes. The main principle in the Eurocodes is that it must be shown in all design situations that no relevant limit state is exceeded. LÄS MER

5. 14. On the Use of Engineering Geological Information in Rock Grouting Design

   Författare :Sara Kvartsberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Observational method; Transmissivity distribution; Grouting; Design class; Geological prognosis; Fractured rock; Hydraulic domain; Tunnels;

   Sammanfattning : Underground rock construction is dependent on appropriate assessments of the geological settings at the project site. Relevant geological information must be collected, interpreted and communicated clearly with the aid of engineering geological prognoses. LÄS MER

7. 15. Influence of dietary carbohydrates on plasma fatty acid composition : Results from interventional and observational studies

   Författare :Mohammed F. Bajahzer; Ulf Risérus; Lena Ohlsson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; carbohydrates and fat metabolism; Nutrition; Nutrition;

   Sammanfattning : Given reporting bias in dietary questionnaires, biomarkers offer objective assessments. Measuring circulating fatty acid (FA) composition is an established method for evaluating dietary fat quality. However, the influence of carbohydrates and sugars on plasma FA composition is less clear. LÄS MER