Sökning: "degradation environment"

Visar resultat 6 - 10 av 353 avhandlingar innehållade orden degradation environment.

  1. 6. Användning av tillgängliga klimat- och miljödata vid livslängdsbedömningar av byggnader

    Författare :Kjell Westberg; KTH; []
    Nyckelord :service life planning; degradation environment; degradation agents; transformation; buildings; structures; maintenance intervals; meteorological data; climate data; environmental data; air pollutions;

    Sammanfattning : Since there is a demand to achieve improved precision ofestimations of the service life of a building and itsmaintenance intervals, in international organisations tasks arerunning to establish methods, models and standards for servicelife estimations. However, exact estimations are not feasibleat a reasonable cost. LÄS MER

  3. 7. Archaeological Perspectives on Risk and Community Resilience in the Baringo Lowlands, Kenya

    Författare :Nik Petek; Paul Lane; Matthew Davies; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Risk spiral; community resilience; archaeology; pastoralism; Baringo; Kenya; history; Ilchamus; Njemps; spatial statistics; East Africa; Holocene; environment; environmental degradation; colonialism; ethnogenesis; community conformity; survey; remote sensing; habitation; subsistence; Archaeology; Arkeologi;

    Sammanfattning : This historical ecological research provides a detailed insight into the risk avoidance and resilience building strategies in the Lake Baringo basin in Kenya through the lens of archaeology. It explores how changes in subsistence, habitation, and landscape shaped each other and how that affected the available strategies of risk avoidance and resilience building. LÄS MER

  4. 8. Colonisation and PAH degradation by wood-rotting fungi in contaminated soil

    Författare :Erik Andersson; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; agricultural hydrology; Soil Science; Bioteknik; Biotechnology; PLFA; PAH metabolites; PAH; degradation; contaminated soil; soil; brown-rot fungi; white-rot fungi; Colonisation; fungal growth; Lantbrukshydrologi; marklära; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Sammanfattning : Bioremediation of soils is considered a low-cost alternative to other remediation techniques. Its ability to remove a number of different pollutants has been demonstrated, relying mainly on the activities of indigenous soil bacteria. LÄS MER

  5. 9. Microplastics in the urban environment : Concentrations and composition in stormwater sediments and UV-degradation of common litter

    Författare :Lisa Öborn; Helene Österlund; Maria Viklander; Mats Gustafsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microplastic; stormwater; sediment; VA-teknik; Urban Water Engineering;

    Sammanfattning : Microplastics (MPs) are small pieces of plastic material including tyre wear particles (TWPs) smaller than 5000 µm. One of the primary pathways through which MPs including TWPs enter aquatic and marine environments is stormwater runoff from urban areas. LÄS MER

  7. 10. Reactors and biosensors for improved microbial degradation of acetonitrile

    Författare :Kristina Håkansson; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Bioteknik; denitrification; nitrification; on-line analysis and control; Clark electrode; biosensor; biofilm process; acetonitrile; microbial degradation;

    Sammanfattning : Biodegradation is becoming an attractive mode of operation for eliminating toxic chemicals released from industrial processes or already present in the environment. One needs, however, not only to identify organisms capable of degrading such chemicals, but also to address the issue of whether these chemicals, after being degraded, will be toxic to the degrading organisms if present in high concentrations. LÄS MER