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  • Accuracy assessment of LiDAR point cloud geo-referencing

    Creator:
    Williams, Keith E.
    Abstract:
    Three-dimensional laser scanning has revolutionized spatial data acquisition and can be completed from a variety of platforms including airborne (ALS), mobile (MLS), and static terrestrial (TLS) laser scanning. MLS is a rapidly evolving technology that provides increases in efficiency and safety over static TLS, while still providing similar levels of...
    Resource Type:
    Masters Thesis
    Full Text:
    -reflective targets. This methodology incorporates total station validation of a scanners point cloud to

  • Environmental Impacts of Renewable Energy (solar and wind) on Water, Food and Energy Nexus

    Creator:
    Hassanpour Adeh, Elnaz
    Abstract:
    Rapid increasing of renewable energies and the knowledge about their environmental effects are very limited. As a result, the renewable energies (e.g. solar or wind energies) will play a vital role in the future because it is well accepted by environmental friendly industries. This dissertation presents the modeling, data analysis...
    Resource Type:
    Dissertation
    Full Text:
    , Purdue University Airport (KLAF) weather station

  • Modeling and optimization of radio frequency identification networks for inventory management

    Creator:
    Suriya, Atipong
    Abstract:
    Stock loss and out-of-stocks are outcomes of poorly designed inventory management systems and can lead to significant revenue losses. Inventory management systems (IMS) based on radio frequency identification (RFID) have the potential to minimize these losses if they are properly designed and deployed. However, the placement of RFID readers to...
    Resource Type:
    Dissertation
    Full Text:
    . The Circular Antenna Coverage Model Formulation..................................... 61 4.2.1. CAC

  • Assessment of Airborne Light Detection and Ranging (LiDAR) for use in common forest engineering geomatic applications

    Creator:
    Craven, Michael B.
    Abstract:
    Airborne Light Detection and Ranging (LiDAR) has become a popular remote sensing technology to create digital terrain models and provide forest inventory information. However, little research has been done to investigate the accuracy of using airborne LiDAR to perform measurement tasks common to Forest Engineering. This thesis contains two manuscripts...
    Resource Type:
    Masters Thesis
    Full Text:
    receiver ................................. 19 Figure 2.5: Nikon Nivo 5c Total Station

  • Landscape Inventory and Harvest Strategies for Individual Western Juniper in Eastern Oregon

    Creator:
    Schriver, Robert
    Abstract:
    Western juniper is a native species in eastern Oregon that became invasive during the last century since its range increased fivefold from 1936 to 1988. Western juniper’s ability to absorb rainfall and groundwater has deleterious effects on stream flow and sensitive sage grouse habitat in eastern Oregon. New methods of...
    Resource Type:
    Masters Thesis
    Full Text:
    relative circular shape of tree crowns, as seen from nadir. A wavelet, like the Mexican hat function is

  • An application of regression tree methodology in freeway travel time estimation using speed as a proxy

    Creator:
    Wang, Lijuan
    Abstract:
    Accurate freeway travel time estimation is of increasing importance for the travelers’ information and route guidance system. A non-parametric statistical methodology known as regression trees is deployed in this research for dynamically and accurately estimating freeway travel times for the I5-I205 loop in the Portland Metro area of Oregon using...
    Resource Type:
    Masters Thesis
    Full Text:
    Influence area around the detector station ........................................................30 9.1

  • Application of GNSS for Vertical Reference Determination

    Creator:
    Kim, Su-Kyung
    Abstract:
    Vertical datum is a reference system used for specifying the elevation of specific points on or near the Earth. Precise and accurate definition and realization of vertical references are, therefore, crucial to ensure consistency between height measurements. The vertical datums can be divided into two categories: 1) vertical geodetic datums...
    Resource Type:
    Dissertation
    Full Text:
    sentinel station used in the experiment. ...................................................... 39 Figure

  • Forest biomass estimation with hemispherical photography for multiple forest types and various atmospheric conditions

    Creator:
    Clark, Joshua Andrew
    Abstract:
    The importance of accurately identifying inventories of domestic energy, including forest biomass, has increasingly become a priority of the US government and its citizens as the cost of fossil fuels has risen. It is useful to identify which of these resources can be processed and transported at the lowest cost...
    Resource Type:
    Dissertation
    Full Text:
    specific size (circular area, 0.04 hectare). A brief overview of hemispherical photography is included

  • Optimizing the primary forest products supply chain : a multi-objective heuristic approach

    Creator:
    Hamann, Jeff D.
    Abstract:
    This thesis is a collection of four submitted manuscripts that present methods to assist forest ecosystem service managers wanting to develop operational sampling, monitoring, and production plans for a set of specific quantifiable ecosystem services, which are formulated as a series of general multi-objective optimization problems. The problems are solved...
    Resource Type:
    Dissertation

  • Differentiating transportation modes using Bluetooth sensor data

    Creator:
    Bathaee, Nadia
    Abstract:
    State departments of transportation, transportation consultants, and other transportation agencies are always in need of data that can be used to better understand how different modes of transportation use the road and highway systems. A variety of automatic data collection technologies have been used to gather these data including video...
    Resource Type:
    Masters Thesis
    Full Text:
    ............................................................................................................ 119 LIST OF FIGURES Figure Page Figure 1: Categories of Clustering Methods (V