Index Catalog // ScholarsArchive@OSU

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

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

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

Experimental Characterization of a Supercritical Carbon Dioxide Microchannel Solar Thermal Receiver

Creator:: L'Estrange, Thomas
Abstract:: Characterization of a microchannel solar thermal receiver for supercritical carbon dioxide (sCO₂) is presented. The receiver design is based on conjugate computational fluid dynamics and heat transfer simulations as well as thermo-mechanical stress analysis. Two lab scale receivers with a 2x2 cm² absorber area are fabricated and experimentally characterized -...
Resource Type:: Masters Thesis
Full Text:: circular microchannels by drilling and welding headers to the 18 channel section. This device

A comparison of the value of forest plans developed under three levels of detail regarding management intentions

Creator:: Hirte, Sarah Rebecca
Abstract:: In the field of forest planning, assumptions regarding the appropriate modeling of management behavior, translated through management prescriptions, minimum harvest ages, green-up periods, and other variables are needed if a stand-level optimization process is not used to guide the selection of stand management regimes Forest planners thus generally have a...
Resource Type:: Masters Thesis

Snow Grain Evolution in Forested and Open Regions – Implications for Remote Sensing

Creator:: Weiss, Sydney G.
Abstract:: Snow water equivalent (SWE) is a critical measurement in hydrology and water resources management. Microwave remote sensing can estimate snow water equivalent (SWE). However, the algorithms used to estimate SWE require snow grain size information. Thus, determining snow grain size is pertinent to estimate SWE. Currently, there are several models...
Resource Type:: Masters Thesis

Unsaturated Soils and Foundation Design : Theoretical Considerations for an Effective Stress Framework

Creator:: Baker, Josiah D.
Abstract:: This study presents the theoretical background necessary to model the bearing capacity of shallow and deep foundations in partially saturated soils. The conventional bearing capacity equations for shallow and deep foundations and the 𝛽-method for deep foundation side resistance have been modified to include the effects of matric suction and...
Resource Type:: Masters Thesis
Full Text:: ′ = 20°). .........................................................119 Figure 5-24. Calculated bearing

Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections

Creator:: Kopper, Neil H.
Abstract:: Isolated approaches at signalized intersections with posted speed limits of 45 mph or greater generally experience large numbers of rear-end and angle collisions. A combination of less attentive drivers, high operating speeds, and less than ideal intersection characteristics can result in crash frequencies well above expected rates. A number of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Accuracy assessment of LiDAR point cloud geo-referencing

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

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

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

Differentiating transportation modes using Bluetooth sensor data

Experimental Characterization of a Supercritical Carbon Dioxide Microchannel Solar Thermal Receiver

A comparison of the value of forest plans developed under three levels of detail regarding management intentions

Snow Grain Evolution in Forested and Open Regions – Implications for Remote Sensing

Unsaturated Soils and Foundation Design : Theoretical Considerations for an Effective Stress Framework

Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections

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