Sökning: "local space"

Visar resultat 11 - 15 av 703 avhandlingar innehållade orden local space.

1. 11. Discrete Scale-Space Theory and the Scale-Space Primal Sketch

   Författare :Tony Lindeberg; Jan-Olof Eklundh; Jan. J Koenderink; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer vision; low-level processing; scale-space; diffusion; Gaussian filtering; discrete smoothing; primal sketch; segmentation; descriptive elements; scale detection; image structure; focus-of-attention; tuning low-level processing; blob detection; edge detection; edge focusing; histogram analysis; junction classification; perceptual grouping; texture analysis; critical points; classification of blob events; bifurcations; drift velocity; density of local extrema; multi-scale representation; digital signal processing; Computer Science; Datalogi;

   Sammanfattning : This thesis, within the subfield of computer science known as computer vision, deals with the use of scale-space analysis in early low-level processing of visual information. The main contributions comprise the following five subjects:The formulation of a scale-space theory for discrete signals. LÄS MER

3. 12. Cascading extinctions in food webs : local and regional processes

   Författare :Anna Eklöf; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cascading extinctions; complexity; connectance; dispersal; food web; local dynamics; regional dynamics; resistance; spatial structure; species loss;

   Sammanfattning : Ecological communities all over the world are loosing biodiversity due to different kinds of human activities and there is an urgent need of understanding how those losses affect the function of the ecosystems on which we all depend. The community's response to species losses is likely to depend on both the structure of the local community as well as its interactions with surrounding communities. LÄS MER

4. 13. Local magnetic susceptometry : Visualizing functional properties of novel materials

   Författare :Ziyan Gu; K. V. Rao; Robert D. Shull; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap;

   Sammanfattning : One of the rapidly growing instrumentation technologies of late has been Surface Probe Microscopy. Since the award of the Nobel Prize in 1986, this form of instrumentation has expanded into various fascinating forms and is successfully enabling investigations at a nano-scale. LÄS MER

5. 14. Space and Place : Perspectives on outdoor teaching and learning

   Författare :Emilia Fägerstam; Lars Owe Dahlgren; Per Andersson; Katherine Stewart; Johan Öhman; Arne N. Jordet; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Outdoor teaching and learning; nature; school grounds; theory of place; Undervisning och lärande utomhus; natur; skolgård; platsteori;

   Sammanfattning : This thesis aims to explore teachers’ and students’ experience and perception of outdoor teaching and learning. Further, it aims to explore influences of outdoor teaching on academic performance in biology and mathematics. The contexts for the thesis are a Swedish high school and Australian environmental education centres. LÄS MER

7. 15. Space and Sensibility : Young Men’s Risk-Taking with Motor Vehicles

   Författare :Tanja Joelsson; Jeff Hearn; Carina Listerborn; Aretun Åsa; Tracey Skelton; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Gender; masculinity; age; class; place; spatial boredom; risk­‐taking; violence; violations; ethnography; Kön; maskulinitet; ålder; klass; plats; rumslig tristess; risktagande; våld; kränkning; etnografi;

   Sammanfattning : In this ethnographic study of “Volvo greasers” [Volvoraggare] in a peri-urban community in Sweden, risk-taking practices with motor vehicles, such as speeding and drifting, are explored and analyzed in relation to age, gender, class and place. Young men’s risk-taking with motor vehicles regularly generates public debate as a traffic safety issue, often resulting in various policy suggestions, such as curfews or raising of the driving licence age. LÄS MER