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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Advanced Corrosion Detection Combining Chemical Odor and Magnetic Flux Measurements</title>
      <link>https://rip.trb.org/View/2221106</link>
      <description><![CDATA[It has been reported that of the over 600,000 bridges in the United States, 7.5% are structurally deficient. This is often a result of some form of corrosion whether external or internal. Common advances to monitor corrosion include magnetic flux and acoustic emission measurements. However, chemical reactions that occur during metal corrosion may generate changes in volatile organic compounds (VOCs) above and around the corroded material. Over the past 25 years the Furton group has studied the VOCs detected by canines and developed training aids for applications ranging from agricultural applications, medical applications (including COVID-19) and forensic applications including mass storage devices and we are currently studying fentanyl odors and canines ability to detect fentanyl. Although there are no reports of applying odor analysis and canine detection for the application proposed a preliminary study on dogs ability to detect corrosion under insulation in oil and gas processing plants was conducted by Schoon et al. suggesting that the application merits further attention.]]></description>
      <pubDate>Mon, 31 Jul 2023 00:02:16 GMT</pubDate>
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      <title>Use of Canines as a Corrosion Detection Device</title>
      <link>https://rip.trb.org/View/2221091</link>
      <description><![CDATA[This proposal outlines the utilization of canines for the detection of corrosion within bridges and other large concrete structures. This proposal will identify the proper techniques required to effectively and rapidly train a canine to detect corrosion and apply this detection capability to actual concrete structures. Figures of merit such as accuracy of detection and comparisons to current schemes such as magnetic flux will also be reported.
The main objective of this research is to improve the CTDOT accelerated bridge construction (ABC) decision making tool to obtain an improved tool that is more comprehensive, less subjective, and more flexible to be used by other state departments of transportation (DOTs). The improvements will be made by (1) Considering the 
benefits of ABC on roadway safety, (2) Considering the contributions of ABC to social equity and environmental justice, (3) Developing quantitative measures for the evaluation of decision criteria where possible, and (4) Using a systematic method for the determination of 
relative importance (weights) of criteria. A case study will be used to demonstrate the applicability of the improved tool.]]></description>
      <pubDate>Fri, 28 Jul 2023 08:54:05 GMT</pubDate>
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