Sökning: "accessible surface area"

Visar resultat 6 - 10 av 47 avhandlingar innehållade orden accessible surface area.

  1. 6. Shipborne geophysical study of an Ordovician-Silurian carbonate platform, Fårö - Hiiumaa area, northeastern Baltic Sea

    Författare :Igor Tuuling; Jan Bergström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Historical Geology and Paleontology; historisk geologi och paleontologi;

    Sammanfattning : The lithological-stratigraphical subdivision, the internal structure and the present relief of the Lower Paleozoic bedrock sequence was investigated by means of high resolution shallow marine seismic reflection profiling in the northeastern Baltic Sea.The Cambrian, as well as the lowermost Silurian layers, show rapidly changing lithologies and thicknesses and provide no trans-Baltic seismic reflectors. LÄS MER

  3. 7. A Topographic Study of Functional Surfaces

    Författare :Robert Ohlsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cylinder bore; 3D surface roughness; topography; expert system; AFM; relocation; replication; instrumentation; functional demands;

    Sammanfattning : Surface topography through the years has taken on increased importance, because of the rise in quality demands. The surface often has to meet additional functional demands when products become more complex in accordance with customer preferences. LÄS MER

  4. 8. Eastern equatorial Pacific bulk sediment properties and paleoceanography since the late Neogene

    Författare :Daniele Reghellin; Helen K. Coxall; Jan Backman; Gerald R. Dickens; Steve Hovan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Paleoceanography; late Neogene; eastern equatorial Pacific; deep sea sediments; bulk sediment; stable isotopes; surface mixed layer; sediment physical properties; Marine Geology; maringeologi;

    Sammanfattning : Reconstructing eastern equatorial Pacific (EEP) oceanography since the late Neogene (about 8 million years ago, Ma) is a central topic in current paleoceanographic investigations. The reason for this is two-fold. LÄS MER

  5. 9. An add-on filter technique to improve micropollutant removal and water quality in on-site sewage treatment facilities

    Författare :Wen Zhang; Gunno Renman; Erik Kärrman; Carlos Alberto Arias; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Micropollutant; on-site sewage facilities; physicochemical properties; pore structure; sorbents; surface functional group; Mark- och vattenteknik; Land and Water Resources Engineering;

    Sammanfattning : Onsite sewage treatment facilities (OSSFs) in Sweden currently release significant amounts of nitrogen (N) and phosphorus (P) into groundwater or/and receiving water bodies. Micropollutants (MPs) have been found in both surface water and groundwater, indicating insufficient removal of MPs by OSSFs. LÄS MER

  7. 10. Efficient Winter Road Maintenance : A Study of Technical and Contractual Issues

    Författare :Adel Abdi; Hans Lind; Björn Birgisson; Lars Silver; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate; road climate and weather; road surface roughness; road friction; winter tyre; winter maintenance tools; RWIS; weather station; winter maintenance; contract type; road maintenance contract; winter maintenance contract; partnering; strategic alliance; public procurement; tender; incentives; bundling services; payment mechanism; remuneration models; Civil and Architectural Engineering; Byggvetenskap;

    Sammanfattning : Since ancient times, roads have tied people and cultures together. Roads have been createdwith the aim of facilitating trade and cultural exchange among different regions in the world. LÄS MER