Sökning: "Ground Penetrating Radar"

Visar resultat 11 - 15 av 19 avhandlingar innehållade orden Ground Penetrating Radar.

1. 11. Remnant echoes of the past : Archaeological geophysical prospection in Sweden

   Författare :Andreas Viberg; Kerstin Lidén; Bo Olofsson; Rinita Dalan; Bruce Bevan; Neil Price; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Archaeological prospection; geophysical survey; Sweden; Ground-penetrating radar; magnetometry; Slingram; magnetic susceptibility; Neolithic; Migration period; Viking Age; Middle Ages; Öland; Gotland; Sigtuna; Lapland; Archaeological Science; laborativ arkeologi;

   Sammanfattning : The aim of this thesis has been to investigate the benefits, pitfalls and possibilities of using geophysical methods in archaeological projects. This is exemplified by surveys carried out at archaeological sites in different geographical and chronological contexts. LÄS MER

3. 12. Linking water and permafrost dynamics

   Författare :Ylva Sjöberg; Steve Lyon; Andrew Frampton; Britta Sannel; Georgia Destouni; Michelle Walvoord; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; permafrost; hydrology; arctic; modeling; streamflow; geophysical measurements; ground thermal dynamics; groundwater; Physical Geography; naturgeografi;

   Sammanfattning : The extent and dynamics of permafrost are tightly linked to the distribution and movement of water in arctic landscapes. As the Arctic warms more rapidly than the global average, profound changes are expected in both permafrost and hydrology; however, much is still not known about the interactions between these two systems. LÄS MER

4. 13. Non destructive testing methods for integrity determination of concrete structures

   Författare :Jon Rasmussen; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tillämpad geofysik; Applied Geophysics;

   Sammanfattning : The ageing of concrete structures can be a threat to human safety as well as being a huge economical factor in the near future. Lifetime prediction and damage assessment of concrete structures will be a growing part of infrastructure planning. LÄS MER

5. 14. Railway Track Stiffness : Dynamic Measurements and Evaluation for Efficient Maintenance

   Författare :Eric Berggren; Mats Berg; Laurent Schmitt; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway track stiffness; maintenance; soil dynamics; measurement; simulation; vibration; Vehicle engineering; Farkostteknik;

   Sammanfattning : Railway track stiffness (vertical track load divided by track deflection) is a basic parameter oftrack design which influences the bearing capacity, the dynamic behaviour of passing vehiclesand, in particular, track geometry quality and the life of track components. Track stiffness is abroad topic and in this thesis some aspects are treated comprehensively. LÄS MER

7. 15. Effectiveness of reclamation by backfilling and sealing at Kimheden open-pit mine, northern Sweden

   Författare :Lucile Villain; Erik Carlsson; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

   Sammanfattning : Reclamation of mine sites is a very recent concept on the scale of mining history. It involves the prevention or mitigation of the environmental impacts from mining, and the establishment of sustainable post-mining uses of the land. LÄS MER