Sökning: "irregular terrain"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden irregular terrain.

  1. 1. Assessing tree modeling algorithm from terrestrial laser scanning in Rumperöd mixed forest

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Stig Sand; [2023]
    Nyckelord :Terrestrial laser scanning; Hough transform algorithm; TreeLS; Rumperöd; Biology and Life Sciences;

    Sammanfattning : Recent technological advancements have revolutionized tree inventory methods for the forest industry. The development of terrestrial laser scanning (TSL) and automatized tree recognition software to estimate crucial tree parameters such as diameter at breast height (DBH) has made the inventory work faster and more reliable. LÄS MER

  3. 2. Islamiska staten : en revolution eller något annat?

    Uppsats för yrkesexamina på grundnivå, Försvarshögskolan

    Författare :Peter Johansson; [2020]
    Nyckelord :Islamiska staten; IS; ISIS; hybridkrigföring; McCulloh; revolution; Guevara;

    Sammanfattning : Since the cold war, contemporary warfare is more frequently fought between state and non-state actors. The Islamic State is a non-state actor who in a short period of time reached major achievements. Some scientists consider the Islamic State’s warfare as a developing trend of irregular warfare. LÄS MER

  4. 3. High-fidelity 3D acoustic simulations of wind turbines with irregular terrain and different atmospheric profiles

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Erik Hedlund; [2016]
    Nyckelord :wave propagation; irregular terrain; high-order finite difference methods;

    Sammanfattning : We study noise from wind turbines while taking irregular terrain and non-constant atmosphere into consideration. We will show that simulating the distribution of 3D acoustic waves can be done by using only low frequencies, thus reducing the computational complexity significantly. .. LÄS MER

  5. 4. Dynamic Creation of Multi-resolution Triangulated Irregular Network

    Master-uppsats,

    Författare :Emil Bertilsson; [2015]
    Nyckelord :Triangulated Irregular Network; View dependent terrain generation; Level of detail;

    Sammanfattning : Context. Triangulated irregular network (TIN) can produce terrain meshes with a reduced triangle count compared to a regular grid. At the same time, TIN meshes are more challenging to optimize in real-time in comparison to other approaches. Objectives. LÄS MER

  7. 5. Accuracy assessment in glacier change analysis

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Inese Linuza; [2014]
    Nyckelord :Physical Geography and Ecosystem analysis; GIS; accuracy assessment; glaciology; Digital Elevation Models DEMs ; interpolation; Earth and Environmental Sciences;

    Sammanfattning : This thesis assesses the accuracy of digital elevation models (DEM) generated from contour lines and LiDAR points (Light Detection and Ranging) employing several interpolation methods at different resolutions. The study area is Jostefonn glacier that is situated in Sogn og Fjordane county, Norway. LÄS MER