{"id":"https://openalex.org/W2070542243","doi":"https://doi.org/10.1007/s12239-010-0056-7","title":"Experimental investigation of the valvetrain friction in actual engine operation conditions","display_name":"Experimental investigation of the valvetrain friction in actual engine operation conditions","publication_year":2010,"publication_date":"2010-06-26","ids":{"openalex":"https://openalex.org/W2070542243","doi":"https://doi.org/10.1007/s12239-010-0056-7","mag":"2070542243"},"language":"en","primary_location":{"id":"doi:10.1007/s12239-010-0056-7","doi":"https://doi.org/10.1007/s12239-010-0056-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s12239-010-0056-7","pdf_url":null,"source":{"id":"https://openalex.org/S93626530","display_name":"International Journal of Automotive Technology","issn_l":"1229-9138","issn":["1229-9138","1976-3832"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","cwts-core","dongbi-c","jufo-1","kci-registered","norway-1","poland-100","russia-white-list-2"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Automotive Technology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"S. Kang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"S. Kang","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-744, Korea","Seoul National Univ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-744, Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"Seoul National Univ","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110053494","display_name":"Sang Ken Kauh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"S. K. Kauh","raw_affiliation_strings":["School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-744, Korea","Seoul National Univ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-744, Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"Seoul National Univ","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"last","author":{"id":null,"display_name":"K. -P. Ha","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1284277383","display_name":"Kia Motors (South Korea)","ror":"https://ror.org/05rv8ev82","country_code":"KR","type":"company","lineage":["https://openalex.org/I1284277383"]},{"id":"https://openalex.org/I49946491","display_name":"Hyundai Motors (South Korea)","ror":"https://ror.org/016kvft77","country_code":"KR","type":"company","lineage":["https://openalex.org/I197312522","https://openalex.org/I49946491"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"K. -P. Ha","raw_affiliation_strings":["Power Train R&D Center, Hyundai Motor Company & Kia Motor Corporation, 772-1 Jangduk-dong, Hwaseong-si, Gyeonggi, 445-706, Korea","Hyundai Motor Company and Kia Motor Corporation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Power Train R&D Center, Hyundai Motor Company & Kia Motor Corporation, 772-1 Jangduk-dong, Hwaseong-si, Gyeonggi, 445-706, Korea","institution_ids":["https://openalex.org/I1284277383","https://openalex.org/I49946491"]},{"raw_affiliation_string":"Hyundai Motor Company and Kia Motor Corporation","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I139264467"],"apc_list":{"value":3190,"currency":"USD","value_usd":3190},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.21938085,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"11","issue":"4","first_page":"455","last_page":"460"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12907","display_name":"Mechanical Engineering and Vibrations Research","score":0.37549999356269836,"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"}},"topics":[{"id":"https://openalex.org/T12907","display_name":"Mechanical Engineering and Vibrations Research","score":0.37549999356269836,"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"}},{"id":"https://openalex.org/T11138","display_name":"Tribology and Lubrication Engineering","score":0.28369998931884766,"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"}},{"id":"https://openalex.org/T10117","display_name":"Advanced Combustion Engine Technologies","score":0.1754000037908554,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/friction-mean-effective-pressure","display_name":"friction mean effective pressure","score":0.8040000200271606},{"id":"https://openalex.org/keywords/torque-fluctuation","display_name":"torque fluctuation","score":0.6779999732971191},{"id":"https://openalex.org/keywords/secondary-oscillations","display_name":"secondary oscillations","score":0.7540000081062317},{"id":"https://openalex.org/keywords/fuel-efficiency","display_name":"fuel economy","score":0.6769999861717224}],"concepts":[{"id":"https://openalex.org/C144171764","wikidata":"https://www.wikidata.org/wiki/Q48103","display_name":"Torque","level":2,"score":0.7224684953689575},{"id":"https://openalex.org/C138027316","wikidata":"https://www.wikidata.org/wiki/Q13707","display_name":"Camshaft","level":2,"score":0.6440941691398621},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.6137959957122803},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.5107154846191406},{"id":"https://openalex.org/C118817141","wikidata":"https://www.wikidata.org/wiki/Q1154740","display_name":"Sprocket","level":2,"score":0.4680345356464386},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.4375941753387451},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.43023502826690674},{"id":"https://openalex.org/C128143373","wikidata":"https://www.wikidata.org/wiki/Q1789953","display_name":"Mean effective pressure","level":4,"score":0.41624388098716736},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.41086524724960327},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3523763418197632},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.321222722530365},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.21383550763130188},{"id":"https://openalex.org/C511840579","wikidata":"https://www.wikidata.org/wiki/Q12757","display_name":"Internal combustion engine","level":2,"score":0.16662496328353882},{"id":"https://openalex.org/C25797200","wikidata":"https://www.wikidata.org/wiki/Q828137","display_name":"Compression ratio","level":3,"score":0.16249459981918335},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.11981964111328125},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.07405495643615723},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s12239-010-0056-7","doi":"https://doi.org/10.1007/s12239-010-0056-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s12239-010-0056-7","pdf_url":null,"source":{"id":"https://openalex.org/S93626530","display_name":"International Journal of Automotive Technology","issn_l":"1229-9138","issn":["1229-9138","1976-3832"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","cwts-core","dongbi-c","jufo-1","kci-registered","norway-1","poland-100","russia-white-list-2"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Automotive Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W209900879","https://openalex.org/W1494253824","https://openalex.org/W1577973727","https://openalex.org/W1597328362","https://openalex.org/W1875889482","https://openalex.org/W1987212361","https://openalex.org/W1993214718","https://openalex.org/W2160456562","https://openalex.org/W2213072840","https://openalex.org/W2246767889"],"related_works":["https://openalex.org/W1535967577","https://openalex.org/W4254705116","https://openalex.org/W4238105163","https://openalex.org/W4239815666","https://openalex.org/W2283536487","https://openalex.org/W2146446654","https://openalex.org/W2088048631","https://openalex.org/W1914700883","https://openalex.org/W1875889482","https://openalex.org/W3016040116"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-09-27T08:07:27.782135","created_date":"2016-06-24T00:00:00"}
