Sökning: "rivers"

Visar resultat 6 - 10 av 208 avhandlingar innehållade ordet rivers.

  1. 6. Shallow Brooks and Rivers Wide : A Study of Lexical and Semantic Change in English Nouns Denoting Watercourse

    Författare :Gabriella Rundblad; Dieter Kastovsky; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; English language; Engelska språket; English; engelska;

    Sammanfattning : This study is intended to provide new insight into the change and stability of lexical fields by means of a new theoretical model for the identification, description and interpretation of the mechanisms of lexical and semantic change.The first part of the study is a detailed investigation of the origin and innovation of the nouns within the lexical field ‘watercourse’ in order to be able to account for the patterns of creation, especially in relation to the current status of the nouns. LÄS MER

  3. 7. Fate of perfluoroalkyl acids in the aquatic environment with a focus on mass balance studies

    Författare :Marko Filipovic; Urs Berger; Michael McLachlan; Crispin Halsall; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PFAA; PFOS; AFFF; tap water; ground water; WWTP; mass balance; atmospheric deposition; rivers; Baltic Sea; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Perfluoroalkyl substances (PFASs) are man-made chemicals. Their unique properties make them beneficial for a wide range of industrial and consumer product applications, such as in aqueous film forming foam (AFFF), durable water repellent clothing, hydraulic oils and food packaging materials. LÄS MER

  4. 8. Provenance, transport, and the fate of organic matter and sediments drained through Himalayan Rivers in Nepal

    Författare :Rajendra Bhandari; Joyanto Routh; Subodh Sharma; Åsa Danielsson; Rajendra Joshi; Mead Allison; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Himalayan rivers; Biomarkers; Isotopes; OC flux; RUSLE; Himalayafloder; biomarkörer; isotoper; OC flux; RUSLE;

    Sammanfattning : Despite its small area (ca. 595,000 km2), the Himalayan region transfers disproportionally high amounts of sediments and organic matter (OM) through a network of rivers into the oceanic sink. LÄS MER

  5. 9. Downstream migration of salmonids in regulated rivers : Non-conventional methods for fish diversion

    Författare :Johan Leander; Jonatan Klaminder; Micael Jonsson; Gustav Hellström; Paul Kemp; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fish migration; Fish passage; Fish guidance; Hydropower; Atlantic salmon; Brown trout; Bubble barrier; Non-physical barrier;

    Sammanfattning : Passages through hydropower plants can be fatal for downstream migrating salmonids (Salmo spp.). This is particularly true for large adults that are returning to the ocean after spawning. LÄS MER

  7. 10. Hydraulic Modelling of Dynamics in Regulated Rivers

    Författare :Anton Burman; J. Gunnar I. Hellström; Knut Alfredsen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : The Nordic countries hold a significant portion of the European hydropower production. One advantage of hydropower is its ability to store water in reservoirs in times when the energy demand is low. LÄS MER