Sökning: "GIS"

Visar resultat 21 - 25 av 240 avhandlingar innehållade ordet GIS.

  1. 21. Visualization, integration and analysis of multi-element geochemical data

    Författare :Katrin Grünfeld; Herbert Henkel; Olle Selinus; Reijo Salminen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; GIS; interactive visualization; glacial till; biogeochemistry; metals; southeastern Sweden; Geovetenskap; Earth sciences; Geovetenskap;

    Sammanfattning : generated large databases containing information on the concentrations of chemical elements in rocks, surface sediments and biogeochemical materials. Regional geochemical data being imprecise, multivariate, spatially auto-correlated and non-normally distributed pose specific problems to the choice of data analysis methods. LÄS MER

  3. 22. EstimatingChloride concentration in surface water and groundwater duet to deicing salt application

    Författare :Eva-Lotta Thunqvist; KTH; []
    Nyckelord :road; deicing salt; monitoring; chloride; catchment area; river basin; simulation; GIS; groundwater; surface water;

    Sammanfattning : A road in operation along with its traffic can pose aserious pollutant threat to groundwater and surface water inits vicinity. Examples of pollutants are metals from thecorrosion of vehicles, rails and poles and the wear of roadsurfaces and tyres; hydrocarbons from the wear of roadsurfaces, tyres, exhausts, oils; sodium chloride from roadsalt; and hazardous goods discharged in accidents. LÄS MER

  4. 23. Barns säkra tillgänglighet till skolan

    Författare :Mats Gummesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GIS; bicyclist; Accessibility; children; traffic safety; school road; pedestrian;

    Sammanfattning : Children are an exposed group in traffic as unprotected road-users. The history of traffic education and how children were looked upon in steering documents of traffic planning shows how the view of children and the traffic system from authorities and organizations have changed over time. LÄS MER

  5. 24. Clusters of urban crime and safety in transport nodes

    Författare :Adriaan Cornelis Uittenbogaard; Vania Ceccato; Mats Wilhelmsson; Alex Hirschfield; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safety; urban crime; space-time clusters; crime concentrations; GIS; environmental attributes; public transport; underground stations; transport nodes; crime prevention;

    Sammanfattning : The objective of the thesis is to provide a better understanding of the safety conditions inurban environments, particularly related to those found in transport nodes, in this case,underground stations, and surrounding areas1. First, the study starts with an analysis of theoverall city, identifying concentrations of crime in the urban fabric and then focusing on thecriminogenic conditions at and around underground stations. LÄS MER

  7. 25. Changes, Activities and Bones : Intra-site analysis of the Pitted Ware Culture site Ajvide on the Baltic Sea island of Gotland

    Författare :Alexander Sjöstrand; Sabine Sten; Paul Wallin; Gustaf Svedjemo; Kristiina Mannermaa; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Osteology; GIS; Archaeology; Stone Age; Middle Neolithic; Pitted Ware Culture; Bourdieu; practice theory; Gotland; Ajvide; ritual.; Archaeology; Arkeologi;

    Sammanfattning : In this dissertation the structure, practices and evolution of a single Pitted Ware Culture site, Ajvide on Gotland, is explored and placed within the larger Pitted Ware Culture context. The site has been excavated over a period of 24 years, making it one of the most excavated Pitted Ware Culture sites in Sweden. LÄS MER