Essays about: "trees"

Showing result 1 - 5 of 901 essays containing the word trees.

  1. 1. SLAMIt A Sub-Map Based SLAM System : On-line creation of multi-leveled map

    University essay from Linköpings universitet/DatorseendeLinköpings universitet/Tekniska fakulteten

    Author : Karl Holmquist; [2017]
    Keywords : SLAM; Kinect 2; Sub-map; Loop-closure; Object detection; CENTAURO EU-project;

    Abstract : In many situations after a big catastrophe such as the one in Fukushima, the disaster area is highly dangerous for humans to enter. It is in such environments that a semi-autonomous robot could limit the risks to humans by exploring and mapping the area on its own. READ MORE

  2. 2. Invasive Phytophthora species affecting broadleaved tree species in urban and landscape settings in Southern Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Mimmi Blomquist; [2017]
    Keywords : fagus sylvatica; phytophthora; forest; pathogen; invasive; P.gonapodyides; pildammsparken; Sweden;

    Abstract : Phytophthora translates to ‘plant destroyer’ and are fungal-like, hemibiotrophic plant pathogens. Phytophthora was discovered in the mid 19th century, as the causal agent of the widespread collapse of potato crops throughout Europe. READ MORE

  3. 3. Occurrence and distribution of Phytophthora spp. : affecting European beech (Fagus sylvatica) within Söderåsen National Park

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Adriaan Van Tour; [2017]
    Keywords : Phytophthora cambivora; Söderåsen National Park; beech; fagus sylvatica; Phytophthora plurivora; soil baiting; tissue plating; environmental sequencing;

    Abstract : There has been an increase of damage on beech in Europe since the 1990s, especially in central Europe and Germany. The first report on beech in Sweden was in 2010 in Malmö and since then there have been additional observations of symptomatic beech trees at multiple locations, among which Söderåsens national park is one such location. READ MORE

  4. 4. Reconstruction of trees from 3D point clouds

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Martin Stålberg; [2017]
    Keywords : Bayes; Bayesian inference; point cloud; pointcloud; 3D; tree; trees; reconstruction; Matlab; Povray; Arbaro; model; LIDAR; Hough transform; cylinder; geometry; heuristic; Australia; Australian Centre for Field Robotics; spherical grid; icosahedron; likelihood; intersection; artificial data; color encoded; depth map; coordinate map; ray tracing;

    Abstract : The geometrical structure of a tree can consist of thousands, even millions, of branches, twigs and leaves in complex arrangements. The structure contains a lot of useful information and can be used for example to assess a tree's health or calculate parameters such as total wood volume or branch size distribution. READ MORE

  5. 5. Tree establishment under high browsing pressure in Eriksberg Wildlife Park, Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Peteris Virs; [2017]
    Keywords : Browsing; ; ; seedling protection; forest regeneration; Eriksberg Wildlife Park;

    Abstract : The aim of the study was to investigate under which conditions (in terms of topography, amount of rocks, presence of thorny bushes, visibility, etc.) temperate trees can establish under very high browsing pressure. The study was conducted in Eriksberg Wildlife Park (EWP), Blekinge, Sweden. READ MORE