Search for dissertations about: "urban size"

Showing result 1 - 5 of 136 swedish dissertations containing the words urban size.

  2. 1. Traffic-related pollutants in urban snow : Concentrations, size fractionation, and release with snowmelt

    Author : Arya Vijayan; Maria Viklander; Helene Österlund; Göran Blomqvist; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Urban snow; Traffic pollution; Suspended solids; Metals; PAHs; Tire and Road wear Particles T RWPs ; Microplastics MPs ; Size fractionation; VA-teknik; Urban Water Engineering; Centrumbildning - Centrum för dagvattenhantering DRIZZLE ; Centre - Centre for Stormwater Management DRIZZLE ;

    Abstract : In urban areas with seasonal snow, traffic-related pollutants such as solid particles, metals, chloride, organic pollutants, and microplastics (MPs) can be temporarily stored in snowbanks along roads and streets. When the snow melts, it releases the accumulated pollutants and the resulting snowmelt with diverse pollutants may partly infiltrate into the ground, or enter storm sewers and eventually be discharged into, and impact on, the receiving waters. READ MORE

  4. 2. Seed predation in relation to crop size and stand size of hazel Corylus avellana L. and beech Fagus sylvatica L

    Author : Urban Wästljung; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  5. 3. Impartial Games and Recursive Functions

    Author : Urban Larsson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Algorithmically undecidable; Beatty sequences; Blocking maneuver; Cellular automaton; Comply maneuver; Complementary sequences; Dictionary process; Dual game; Game complexity; Game convergence; Game reflexivity; Heap game; Impartial game; Invariant subtraction game; Move-size dynamic; Nim; P-equivalence; Rule 110; Splitting sequences; *-operator; Subtraction game; Take-away game; Turing complete; Wythoff Nim; Turing complete;

    Abstract : Interest in 2-player impartial games often concerns the famous theory of Sprague-Grundy. In this thesis we study other aspects, bridging some gaps between combinatorial number theory, computer science and combinatorial games. READ MORE

  6. 4. Stellar Surface Structures and the Astrometric Serach for Exoplnaets

    Author : Urban Eriksson; Lindegren Lennart; Kristianstad University; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astrometry; astronomy;

    Abstract : Measuring stellar parallax, position and proper motion is the task of astrometry. With the development of new and much more accurate equipment, different noise sources are likely to affect the very precise measurements made with future instruments. READ MORE

  7. 5. Islet amyloid polypeptide in the control of food intake : an experimental study in the rat

    Author : Urban Arnelo; Karolinska Institutet; Karolinska Institutet; []
    Keywords : body weight; glucose metabolism; IAPP; meal patterns; monoamines; neuropeptides; radioimmunoassay; rats; satiety;

    Abstract : Control of food intake and satiety are physiologically complex processes, that only partly are understood. Several hormonal peptides have been proposed to mediate satiety. Islet amyloid polypeptide (IAPP) is a recently discovered 37 amino acid peptide, mainly produced by the pancreatic ß-cells. READ MORE