Sökning: "Terrain"

Visar resultat 21 - 25 av 160 avhandlingar innehållade ordet Terrain.

  1. 21. Quantity and quality of soil organic matter in permafrost terrain

    Författare :Gustaf Hugelius; Peter Kuhry; Philip Wookey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carbon; soil organic matter; soil organic carbon; permafrost; arctic; upscaling; peat plateau; cryoturbation; active layer; thermokarst; carbon nitrogen ratio; stable isotopes; humification; Physical geography; Naturgeografi; geografi med naturgeografisk inriktning; Physical Geography;

    Sammanfattning : High latitude terrestrial ecosystems are considered key components in the global carbon (C) cycle and hold large reservoirs of soil organic carbon (SOC). Much of this is stored as soil organic matter (SOM) in permafrost soils and peat deposits and is vulnerable to remobilization under future global warming. LÄS MER

  3. 22. Coherent CO2 laser radar in active imaging systems

    Författare :Dietmar Letalick; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Q-switching; atmospheric turbulence; coherent laser radar; terrain segmentation; heterodyne detection; range-based object detection; imaging laser radar; co2 laser;

    Sammanfattning : .... LÄS MER

  4. 23. Geographic Indexing and Data Management for 3D-Visualisation

    Författare :Patrik Ottoson; KTH; []
    Nyckelord :geographic visualisation; virtual reality; geographic indexing; spatial indexing; ellipsoidal quadtrees; global geographic databases; quadtrees; data fusion; data compression; wavelets; terrain models; elevation models;

    Sammanfattning : .... LÄS MER

  5. 24. Collaborative Process Change by Inscription - a Contested Terrain for Interaction Designers

    Författare :Pär-Ola Zander; Institutionen för informatik; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Activity Theory; CSCL; Representation; Collaborative writing; Interaction Design; Dialectical Materialism; Inscription;

    Sammanfattning : Inscriptions, i.e. the result of how users write, draw, sketch, model or paint or otherwise create persistent content are an important object of study in interaction design. LÄS MER

  7. 25. From Art Galleries to Terrain Modelling --- A Meandering Path through Computational Geometry

    Författare :Mikael Hammar; Data Vetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; system; numerisk analys; Datalogi; systems; control; numerical analysis; Approximation Algorithms; Computational Geometry; Online Algorithms; Art Gallery Problem; Linear Search; Traveling Salesman Problem; R-Tree; Delaunay Triangulation; Polygon Exploration; Computer science; Shortest Watchman Routes; kontroll; Mathematics; Matematik;

    Sammanfattning : We give approximation and online algorithms as well as data structures for some well studied problems in computational geometry. The thesis is divided into three parts. In part one, we study problems related to guarding, exploring and searching geometric environments. LÄS MER