Search for dissertations about: "constructed"

Showing result 1 - 5 of 2098 swedish dissertations containing the word constructed.

  2. 1. Arthropods in Constructed Wetlands : Ecosystem Processes and Riparian Biodiversity

    Author : David Åhlén; Peter Hambäck; Julien Pétillon; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; constructed wetlands; arthropods; community ecology; spiders; insects; hydrology; shoreline properties; primary production; greenhouse gasses; nutrients; grazing management; Ecology and Evolution; ekologi och evolution;

    Abstract : Constructed wetlands in the agricultural landscape are known to harbor immense arthropod biodiversity, however, riparian arthropod communities have often been neglected compared to aquatic communities when studying environmental responses. These wetlands are highly productive, but vary in form and composition based on its purpose, which influences the communities that inhabit them. READ MORE

  4. 2. Wastewater treatment in constructed wetlands : Effects of vegetation, hydraulics and data analysis methods

    Author : Hristina Bodin; Karin Tonderski; Jesper Persson; Stefan Weisner; Per Milberg; Hans Brix; Linköpings universitet; []
    Keywords : constructed wetland; free water surface flow; wastewater treatment; Kenya; Sweden; vegetation; harvest; Cyperus papyrus; Echinochloa pyramidalis; mass load; phosphorus; ammonium; suspended solids; pollutant removal; hydraulics; residence time distribution; data analysis methods; Konstgjorda våtmarker; avloppsvatten; vattenrening; fosfor; ammonium; partiklar; Kenya; Sverige; växter; Cyperus papyrus; Echinochloa pyramidalis; skörd; hydraulik; dataanalysmetod;

    Abstract : Degradation of water resources has become one of the most pressing global concerns currently facing mankind. Constructed Wetlands (CWs) represent a concept to combat deterioration of water resources by acting as buffers between wastewater and receiving water bodies. READ MORE

  5. 3. Constructed Wetlands and Deconstructed Discourses : Greenhouse gas fluxes and discourses on purifying capacities

    Author : Elisabeth Johansson; Bo Svensson; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; växthuseffekter; vattenrening; miljöaspekter; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : This thesis is a study within the sciences ofconstructed wetlands. It has two sections. Section one is a natural scienrific study ofgas fluxes from construcred wetlands and section two is an analysis ofhow natural sciences describe constructed wetlands. READ MORE

  6. 4. Studies in Swedish Sign Language : Reference, Real Space Blending, and Interpretation

    Author : Anna-Lena Nilsson; Brita Bergman; Terry Janzen; Stockholms universitet; []
    Keywords : HUMANIORA; HUMANITIES; Swedish Sign Language; INDEX-c; first person pronoun; non-dominant hand; buoys; Real Space blending; token blend; surrogate blend; signing space; constructed dialogue; constructed action; sign language interpreting; Sign language; Teckenspråk; Sign Language; teckenspråk;

    Abstract : This thesis comprises four separate studies of the same material: a ten-minute Swedish Sign Language monologue. Study I describes the form, meaning, and use of the sign INDEX-c, a pointing toward the chest traditionally described as a first person pronoun. READ MORE

  7. 5. Coupled Hydrological and Microbiological Processes Controlling Denitrification in Constructed Wetlands

    Author : Johan Kjellin; Anders Wörman; Sara Hallin; Barbro Ulén; Björn Klöve; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Constructed wetland; Residence time; water flow modeling; denitrification rate; Tracer experiment; denitrifying bacteria community structure; Water in nature and society; Vatten i natur och samhälle;

    Abstract : Treatment wetlands play an important role in reducing nitrogen content in wastewater and agricultural run-off water. The main removal process is denitrification and the removal efficiency depends on the hydrological and microbiological features of the wetland, especially in terms of water residence times and denitrification rates. READ MORE