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101 0 $aeng
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181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aAutomated broken spike detection $ephase I
210  1$aWashington, DC :$cU.S. Department of Transportation, Federal Railroad Administration, Office of Research, Development and Technology,$dApril 2021.
215   $a1 online resource (vii, 46 pages) $ccolor illustrations
300   $a"DOT/FRA/ORD-21/17."
300   $a"Final report, April 2021."
300   $a"Authors: Yin Gao, Anish Poudel, Brian Linderman"--Report documentation page.
300   $a"Performing organization: Transportation Technology Center, Inc."--Report documentation page.
320   $aIncludes bibliographical references (page 37).
517   $aAutomated broken spike detection 
606   $aNails and spikes$zUnited States$xTesting
606   $aNondestructive testing$zUnited States
606   $aUltrasonic testing$zUnited States
606   $aNails and spikes$xTesting$2fast
606   $aNondestructive testing$2fast
606   $aUltrasonic testing$2fast
607   $aUnited States$2fast
608   $aTechnical reports.$2fast
608   $aTechnical reports.$2lcgft
615  0$aNails and spikes$xTesting.
615  0$aNondestructive testing
615  0$aUltrasonic testing
615  7$aNails and spikes$xTesting.
615  7$aNondestructive testing.
615  7$aUltrasonic testing.
700   $aGao$b Yin$01358215
702   $aPoudel$b Anish
702   $aLindeman$b Brian
712 02$aUnited States.$bFederal Railroad Administration.$bOffice of Research, Development and Technology,
712 02$aTransportation Technology Center, Inc.
801  0$bGPO
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996   $aAutomated broken spike detection$93452516
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