Sökning: "smooth topography"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden smooth topography.

  1. 1. Can the introduction of the topographic indices in LPJ-GUESS improve the spatial representation of environmental variables?

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

    Författare :Alejandra Narváez Vallejo; [2016]
    Nyckelord :smooth topography; drainage area; slope; topographic wetness index; LPJ-GUESS; GIS; physical geography and ecosystem analysis; geography; geographic information systems; leaf area index; spatial patterns; MODIS LAI.; Earth and Environmental Sciences;

    Sammanfattning : Ecosystem modelling is an always evolving science trying to catch the complexity of the nature and its principles to model environmental responses in a realistic way. Over and over, models try to introduce more variables and interactions to achieve better representations of phenomena of interest like the responses of the ecosystem to a fast changing world (climate change, land use change). LÄS MER

  3. 2. Sliding wear performance of electroplated hard chromium and autocatalytic nickel-phosphorus coatings at elevated temperatures

    Master-uppsats, Karlstads universitet/Avdelningen för maskin- och materialteknik

    Författare :Mats Eriksson; [2014]
    Nyckelord :Tribology; sliding wear; hard chrome; electroless nickel;

    Sammanfattning : This thesis was written for a Swedish valve manufacturer to find out in what temperature regimes it was possible to replace electroplated hard chromium with autocatalytic electroless nickel-phosphorus. In this work the dry sliding wear properties of electroplated hard chromium and autocatalytic electroless nickel-phosphorus(10% P) were compared. LÄS MER

  4. 3. Vibation Reduction by Shaping the Terrain Topography

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Byggnadsmekanik

    Författare :Per Jørstad; [2012]
    Nyckelord :Technology and Engineering;

    Sammanfattning : MAX-lab is a synchrotron radiation laboratory run in cooperation between Lund University and the Swedish Research Council. It currently consists of three stor-age rings, however, construction has begun of the fourth. MAX IV will be located outside of the Lund University Faculty of Engineering campus, in the northeastern part of Lund. LÄS MER

  5. 4. Automated plane detection and extraction from airborne laser scanning data of dense urban areas

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

    Författare :Ning Zhang; [2012]
    Nyckelord :3D city modeling; classification; pattern recognition; LIDAR; physical geography; geomatics; geography; graph cuts; EM algorithm; kD tree; RANSAC; Earth and Environmental Sciences;

    Sammanfattning : Popular science Digital 3D city models are nowadays used in many GIS applications. Airborne laser scanning is rapidly developing technology that can efficiently plot the 3D shapes of everything on the earth surface. Today, organizations that are responsible for, e.g. LÄS MER

  7. 5. Composition, properties and surface structure of tribochemically deposited coatings

    Uppsats för yrkesexamina på avancerad nivå, Tillämpad materialvetenskap

    Författare :Eva-Brita Åkerlund; [2011]
    Nyckelord :WS2; Tribology; Material; Material analysis;

    Sammanfattning : Five tribochemically deposited coatings on honed cast iron cylinder liner segments has been studied with respect to surface properties, material composition, coating thickness, hardness and friction. Methods like Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), 3D topography using white light interferometry (VSI) and Electron Spectroscopy for Chemical Analysis (ESCA) were used to study the surface, coating thickness and material composition. LÄS MER