Index Catalog // ScholarsArchive@OSU

Alkali-silica reaction in concrete containing recycled concrete aggregates

Creator:: Adams, Matthew P.
Abstract:: Using recycled concrete aggregate (RCA) as a replacement for natural aggregate in new concrete is a promising way to increase the overall sustainability of new concrete. This has been hindered, however, by a general perception that RCA is a sub-standard material due to the lack of technical guidance, specifically related...
Resource Type:: Masters Thesis

Analysis of spatial data from terrain models for landslide predictive mapping

Creator:: Santha, Rubini
Abstract:: Landslides are a pervasive hazard that can result in substantial damage to properties and loss of life throughout the world. To understand the nature and scope of the hazard, landslide hazard mapping has been an area of intense research by identifying areas most susceptible to landslides in order to mitigate...
Resource Type:: Dissertation
Full Text:: using 10 m, 30 m and 50 m resolution datasets obtained from ASTER (Advance Space borne Thermal

Safety and efficiency benefits of traffic signal countdown timers : a driving simulator study

Creator:: Islam, Mohammad Rabiul
Abstract:: Traffic signal countdown timers (TSCT) are innovative, practical and cost effective technologies with the potential to improve efficiency and safety at signalized intersections. The purpose of these devices is to assist motorists in decision making at signalized intersections with real time signal change information. While successful implementation of these devices...
Resource Type:: Dissertation
Full Text:: ), Gail (from Dixon Recreation Center), Farid Sharder, Zafor Khan, grad school folks at Kearney 211, and

Height Modernization from Static GPS Networks in Oregon: Evaluating NGS Guidelines and OPUS-Projects

Creator:: Kerr, Darren J.
Abstract:: Determining accurate elevations is important for many engineering and scientific applications, and finding these heights via GNSS increases efficiency and significantly reduces the costs as compared to precise geodetic leveling. The National Geodetic Survey (NGS) has published guidelines for determining both ellipsoidal and orthometric heights with GPS to within 2...
Resource Type:: Masters Thesis
Full Text:: refined product. Thanks to Michael Eddy, Michael Bunn, Farid Javadnejad, and Dan Gillins for their

Implementing High Dynamic Range (HDR) Photography to Improve 3D Laser Scanning Point Cloud Visualization and Segmentation

Creator:: Mahmoudabadi, Hamid
Abstract:: This research explores several novel approaches to improve visualization and segmentation of point clouds acquired with 3D laser scanning. 3D laser scanning is used in a wide variety of applications including surveying and mapping, transportation asset management, facilities management, building information modeling, crime scene investigations, cultural heritage and geologic instigations....
Resource Type:: Dissertation

Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

Creator:: Gillins, Matthew N.
Abstract:: Bridge inspections are vital for monitoring the health and serviceability of transportation infrastructure throughout the world. However, inspections can be logistically-challenging, expensive, and dangerous. For example, inspections may require climbing, as well as the use of scaffolding, ladders, rescue boats, bucket trucks, and/or under-bridge inspection vehicles. Small, multirotor unmanned aircraft...
Resource Type:: Masters Thesis
Full Text:: Oregon State University, Farid Javadnedjad, Chase Simpson, and Jonathan Burnett for their assistance in

Hybrid Survey Networks : Combining Real-time and Static GNSS Observations for Optimizing Height Modernization

Creator:: Weaver, Brian Jerald
Abstract:: To derive ellipsoid heights on passive marks with cm-level accuracy, many current specifications require the collection and adjustment of long-duration, static Global Navigation Satellite System (GNSS) sessions. To increase efficiency, a survey procedure that includes real-time kinematic vectors from a real-time GNSS network (RTN) was evaluated. Thirty different “hybrid” networks...
Resource Type:: Masters Thesis
Full Text:: other survey related topics. Oregon State University graduate civil engineering students Farid

Small Unmanned Aircraft Systems (UAS) for Engineering Inspections and Geospatial Mapping

Creator:: Javadnejad, Farid
Abstract:: Small unmanned aircraft systems (UAS) carrying consumer-grade nonmetric cameras are increasingly utilized to generate high-resolution 3D geospatial data. Low cost, ease of operation, widespread availability and low altitude maneuvering capabilities of UAS, as well as the rapid development of technology and methods, make UAS-based photogrammetry applicable to many civil engineering...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Farid

A New Bonding Model for the Particulate Simulation of Bio-Cemented Sand (with a Side Excursion on Percolation in Granular Mixtures)

Creator:: Khoubani, Ali
Abstract:: Bio-cementation is a promising method for the liquefiable mitigation of loose saturated sands. In the improvement process a bacterium that can be found naturally in soil deposits is fed urea. The bacterium consumes and breaks down the urea to form ammonium and carbonate. In the presence of calcium, calcium carbonate...
Resource Type:: Dissertation
Full Text:: Cement Density (kg/m3) 2650 3150 Particle Radius (mm) 1.0 0.05(a) Normal stiffness (N/m) 5×106 5×106

Investigation of Multi-constellation RTK GNSS Survey Productivity and Coordinate Accuracy

Creator:: Jamieson, Marian H.
Abstract:: This study evaluates the productivity and accuracy of surveys completed with single-base real-time kinematic (RTK) Global Navigation Satellite Systems (GNSS) using four different GNSS constellation combinations: (1) GPS-only, (2) GPS+GLONASS, (3) GPS+Galileo+BeiDou, and (4) GPS+GLONASS+Galileo+BeiDou. For this comparison, we set up a test site consisting of 20 stations ranging with...
Resource Type:: Masters Thesis
Full Text:: analysis. Dr. Farid Javadnejad graciously developed and ran Skyplotter for this research. Lastly, I

ScholarsArchive@OSU

Alkali-silica reaction in concrete containing recycled concrete aggregates

Analysis of spatial data from terrain models for landslide predictive mapping

Safety and efficiency benefits of traffic signal countdown timers : a driving simulator study

Height Modernization from Static GPS Networks in Oregon: Evaluating NGS Guidelines and OPUS-Projects

Implementing High Dynamic Range (HDR) Photography to Improve 3D Laser Scanning Point Cloud Visualization and Segmentation

Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

Hybrid Survey Networks : Combining Real-time and Static GNSS Observations for Optimizing Height Modernization

Small Unmanned Aircraft Systems (UAS) for Engineering Inspections and Geospatial Mapping

A New Bonding Model for the Particulate Simulation of Bio-Cemented Sand (with a Side Excursion on Percolation in Granular Mixtures)

Investigation of Multi-constellation RTK GNSS Survey Productivity and Coordinate Accuracy

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