{"id":"https://openalex.org/W2944167101","doi":"https://doi.org/10.3390/s19092128","title":"Numerical Study on Ultrasonic Guided Waves for the Inspection of Polygonal Drill Pipes","display_name":"Numerical Study on Ultrasonic Guided Waves for the Inspection of Polygonal Drill Pipes","publication_year":2019,"publication_date":"2019-05-08","ids":{"openalex":"https://openalex.org/W2944167101","doi":"https://doi.org/10.3390/s19092128","mag":"2944167101","pmid":"https://pubmed.ncbi.nlm.nih.gov/31071986"},"language":"en","primary_location":{"id":"doi:10.3390/s19092128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19092128","pdf_url":"https://www.mdpi.com/1424-8220/19/9/2128/pdf?version=1557309230","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/19/9/2128/pdf?version=1557309230","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5022624345","display_name":"Xiang Wan","orcid":"https://orcid.org/0000-0002-4634-4277"},"institutions":[{"id":"https://openalex.org/I110440473","display_name":"Xi'an University of Science and Technology","ror":"https://ror.org/046fkpt18","country_code":"CN","type":"education","lineage":["https://openalex.org/I110440473"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiang Wan","raw_affiliation_strings":["School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China","institution_ids":["https://openalex.org/I110440473"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050343451","display_name":"Xuhui Zhang","orcid":"https://orcid.org/0000-0002-5216-1362"},"institutions":[{"id":"https://openalex.org/I110440473","display_name":"Xi'an University of Science and Technology","ror":"https://ror.org/046fkpt18","country_code":"CN","type":"education","lineage":["https://openalex.org/I110440473"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xuhui Zhang","raw_affiliation_strings":["School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China"],"raw_orcid":"https://orcid.org/0000-0002-5216-1362","affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China","institution_ids":["https://openalex.org/I110440473"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100716008","display_name":"Hongwei Fan","orcid":"https://orcid.org/0000-0002-9891-0568"},"institutions":[{"id":"https://openalex.org/I110440473","display_name":"Xi'an University of Science and Technology","ror":"https://ror.org/046fkpt18","country_code":"CN","type":"education","lineage":["https://openalex.org/I110440473"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongwei Fan","raw_affiliation_strings":["School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China","institution_ids":["https://openalex.org/I110440473"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066720416","display_name":"Peter W. Tse","orcid":"https://orcid.org/0000-0002-6796-7617"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Peter W. Tse","raw_affiliation_strings":["Department of Systems Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Systems Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China","institution_ids":["https://openalex.org/I168719708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101984011","display_name":"Ming Dong","orcid":"https://orcid.org/0000-0003-1155-8547"},"institutions":[{"id":"https://openalex.org/I110440473","display_name":"Xi'an University of Science and Technology","ror":"https://ror.org/046fkpt18","country_code":"CN","type":"education","lineage":["https://openalex.org/I110440473"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ming Dong","raw_affiliation_strings":["School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China","institution_ids":["https://openalex.org/I110440473"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5104388153","display_name":"Hongwei Ma","orcid":"https://orcid.org/0000-0001-6159-3960"},"institutions":[{"id":"https://openalex.org/I110440473","display_name":"Xi'an University of Science and Technology","ror":"https://ror.org/046fkpt18","country_code":"CN","type":"education","lineage":["https://openalex.org/I110440473"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongwei Ma","raw_affiliation_strings":["School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi\u2019an University of Science and Technology, Xi\u2019an 710054, China","institution_ids":["https://openalex.org/I110440473"]},{"raw_affiliation_string":"Shaanxi Key Laboratory of Mine Mechanical and Electrical Equipment Intelligent Monitoring, School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China","institution_ids":["https://openalex.org/I110440473"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5050343451"],"corresponding_institution_ids":["https://openalex.org/I110440473"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":0.7489,"has_fulltext":true,"cited_by_count":16,"citation_normalized_percentile":{"value":0.63451028,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"19","issue":"9","first_page":"2128","last_page":"2128"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10662","display_name":"Ultrasonics and Acoustic Wave Propagation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10662","display_name":"Ultrasonics and Acoustic Wave Propagation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11609","display_name":"Geophysical Methods and Applications","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12169","display_name":"Non-Destructive Testing Techniques","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/drill","display_name":"Drill","score":0.8930920362472534},{"id":"https://openalex.org/keywords/drill-pipe","display_name":"Drill pipe","score":0.7230033874511719},{"id":"https://openalex.org/keywords/ultrasonic-sensor","display_name":"Ultrasonic sensor","score":0.708051323890686},{"id":"https://openalex.org/keywords/drilling","display_name":"Drilling","score":0.6305109858512878},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.4861835837364197},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.428117573261261},{"id":"https://openalex.org/keywords/structural-engineering","display_name":"Structural engineering","score":0.405087411403656},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.35043397545814514},{"id":"https://openalex.org/keywords/mechanical-engineering","display_name":"Mechanical engineering","score":0.30514684319496155}],"concepts":[{"id":"https://openalex.org/C173736775","wikidata":"https://www.wikidata.org/wiki/Q58964","display_name":"Drill","level":2,"score":0.8930920362472534},{"id":"https://openalex.org/C2776088076","wikidata":"https://www.wikidata.org/wiki/Q4199385","display_name":"Drill pipe","level":3,"score":0.7230033874511719},{"id":"https://openalex.org/C81288441","wikidata":"https://www.wikidata.org/wiki/Q20736125","display_name":"Ultrasonic sensor","level":2,"score":0.708051323890686},{"id":"https://openalex.org/C25197100","wikidata":"https://www.wikidata.org/wiki/Q890886","display_name":"Drilling","level":2,"score":0.6305109858512878},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.4861835837364197},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.428117573261261},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.405087411403656},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.35043397545814514},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.30514684319496155},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.3390/s19092128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19092128","pdf_url":"https://www.mdpi.com/1424-8220/19/9/2128/pdf?version=1557309230","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:31071986","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/31071986","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:pure.atira.dk:publications/11d6d8fd-8d43-4f9e-8fb8-5694b391c7ad","is_oa":true,"landing_page_url":"https://hdl.handle.net/2031/11d6d8fd-8d43-4f9e-8fb8-5694b391c7ad","pdf_url":"https://scholars.cityu.edu.hk/files/33118443/31.pdf","source":{"id":"https://openalex.org/S7407055387","display_name":"CityU Scholars","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Wan, X, Zhang, X, Fan, H, Tse, P W, Dong, M & Ma, H 2019, 'Numerical Study on Ultrasonic Guided Waves for the Inspection of Polygonal Drill Pipes', Sensors (Basel, Switzerland), vol. 19, no. 9. https://doi.org/10.3390/s19092128","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:726499d90f8f4260bedb7e3e5f86e466","is_oa":true,"landing_page_url":"https://doaj.org/article/726499d90f8f4260bedb7e3e5f86e466","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 19, Iss 9, p 2128 (2019)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/19/9/2128/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/s19092128","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:6539063","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6539063","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s19092128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19092128","pdf_url":"https://www.mdpi.com/1424-8220/19/9/2128/pdf?version=1557309230","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2944167101.pdf","grobid_xml":"https://content.openalex.org/works/W2944167101.grobid-xml"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W1669738201","https://openalex.org/W1974240985","https://openalex.org/W1988347487","https://openalex.org/W2016939973","https://openalex.org/W2039856673","https://openalex.org/W2051586925","https://openalex.org/W2054764478","https://openalex.org/W2085094541","https://openalex.org/W2101138193","https://openalex.org/W2115677911","https://openalex.org/W2121075244","https://openalex.org/W2141442318","https://openalex.org/W2191439764","https://openalex.org/W2531660289","https://openalex.org/W2546848453","https://openalex.org/W2760050602","https://openalex.org/W2760631115","https://openalex.org/W2767768229","https://openalex.org/W2768333251","https://openalex.org/W2774814661","https://openalex.org/W2789505094","https://openalex.org/W2793438604","https://openalex.org/W2811384785","https://openalex.org/W2889370912","https://openalex.org/W2900967284","https://openalex.org/W4251571283","https://openalex.org/W6754336806"],"related_works":["https://openalex.org/W2366259689","https://openalex.org/W2747852726","https://openalex.org/W3160236466","https://openalex.org/W3002748439","https://openalex.org/W2028725533","https://openalex.org/W2914305898","https://openalex.org/W2383434491","https://openalex.org/W2945734014","https://openalex.org/W4236170482","https://openalex.org/W2070073127"],"abstract_inverted_index":{"The":[0,18,116,131,150],"polygonal":[1,22,60,82,97,103,145,170],"drill":[2,16,23,61,83,98,104,146,171],"pipe":[3,24],"is":[4,39,52,64,71,93,124,160],"one":[5],"of":[6,20,35,40,102,134,169],"the":[7,36,44,111,155,167],"most":[8,46],"critical":[9],"yet":[10],"weakest":[11],"part":[12],"in":[13,138],"a":[14,21,59,161],"high-torque":[15],"machine.":[17],"inspection":[19,50,168],"to":[25,31,67,75,80,95,126],"avoid":[26],"its":[27],"failure":[28],"and":[29,54,142,163],"thus":[30],"ensure":[32],"safe":[33],"operation":[34],"drilling":[37],"machine":[38],"great":[41],"importance.":[42],"However,":[43],"current":[45],"frequently":[47],"used":[48],"ultrasonic":[49,89,135,156],"method":[51,79,165],"time-consuming":[53],"inefficient":[55],"when":[56],"dealing":[57],"with":[58],"pipe,":[62],"which":[63],"normally":[65],"up":[66],"several":[68],"meters.":[69],"There":[70],"an":[72,77,88],"urgent":[73],"need":[74],"develop":[76],"efficient":[78],"inspect":[81,96],"pipes.":[84,99,172],"In":[85],"this":[86],"paper,":[87],"guided":[90,136,157],"wave":[91,158],"technique":[92,123,159],"proposed":[94],"Dispersion":[100],"curves":[101],"pipes":[105,147],"are":[106,148],"firstly":[107],"derived":[108],"by":[109],"using":[110,120],"semi-analytical":[112],"finite":[113],"element":[114],"method.":[115],"ALID":[117],"(absorbing":[118],"layer":[119],"increasing":[121],"damping)":[122],"applied":[125],"eliminate":[127],"unwanted":[128],"boundary":[129],"reflections.":[130],"propagation":[132],"characteristics":[133],"waves":[137],"normal,":[139],"symmetrically":[140],"damaged,":[141],"asymmetrically":[143],"damaged":[144],"studied.":[149],"results":[151],"have":[152],"shown":[153],"that":[154],"promising":[162],"effective":[164],"for":[166]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}