{"id":"https://openalex.org/W7201905970","doi":"https://doi.org/10.1016/j.ijhydene.2026.156923","title":"A multi-study data synthesis and surrogate optimization framework for speed-dependent HHO induction in SI engines","display_name":"A multi-study data synthesis and surrogate optimization framework for speed-dependent HHO induction in SI engines","publication_year":2026,"publication_date":"2026-08-01","ids":{"openalex":"https://openalex.org/W7201905970","doi":"https://doi.org/10.1016/j.ijhydene.2026.156923"},"language":"en","primary_location":{"id":"doi:10.1016/j.ijhydene.2026.156923","doi":"https://doi.org/10.1016/j.ijhydene.2026.156923","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijhydene.2026.156923","pdf_url":null,"source":{"id":"https://openalex.org/S48860480","display_name":"International Journal of Hydrogen Energy","issn_l":"0360-3199","issn":["0360-3199","1879-3487"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Hydrogen Energy","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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":"https://openalex.org/A5068726447","display_name":"Emre ARABACI","orcid":"https://orcid.org/0000-0002-6219-7246","observed_orcids":["https://orcid.org/0000-0002-6219-7246"]},"institutions":[{"id":"https://openalex.org/I48843708","display_name":"Pamukkale University","ror":"https://ror.org/01etz1309","country_code":"TR","type":"education","lineage":["https://openalex.org/I48843708"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Emre Arabac\u0131","raw_affiliation_strings":["Department of Automotive Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Automotive Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye","institution_ids":["https://openalex.org/I48843708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028149771","display_name":"Serdar Halis","orcid":"https://orcid.org/0000-0002-6099-7223","observed_orcids":["https://orcid.org/0000-0002-6099-7223"]},"institutions":[{"id":"https://openalex.org/I48843708","display_name":"Pamukkale University","ror":"https://ror.org/01etz1309","country_code":"TR","type":"education","lineage":["https://openalex.org/I48843708"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Serdar Halis","raw_affiliation_strings":["Department of Automotive Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye"],"raw_orcid":"https://orcid.org/0000-0002-6099-7223","affiliations":[{"raw_affiliation_string":"Department of Automotive Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye","institution_ids":["https://openalex.org/I48843708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056920339","display_name":"E\u015fref Bo\u011far","orcid":"https://orcid.org/0000-0003-3640-363X","observed_orcids":["https://orcid.org/0000-0003-3640-363X"]},"institutions":[{"id":"https://openalex.org/I48843708","display_name":"Pamukkale University","ror":"https://ror.org/01etz1309","country_code":"TR","type":"education","lineage":["https://openalex.org/I48843708"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"E\u015fref Bo\u011far","raw_affiliation_strings":["Department of Biomedical Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye"],"raw_orcid":"https://orcid.org/0000-0003-3640-363X","affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye","institution_ids":["https://openalex.org/I48843708"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5007131360","display_name":"\u00d6ner Atalay","orcid":"https://orcid.org/0000-0001-6142-1288","observed_orcids":["https://orcid.org/0000-0001-6142-1288"]},"institutions":[{"id":"https://openalex.org/I48843708","display_name":"Pamukkale University","ror":"https://ror.org/01etz1309","country_code":"TR","type":"education","lineage":["https://openalex.org/I48843708"]}],"countries":["TR"],"is_corresponding":true,"raw_author_name":"\u00d6ner Atalay","raw_affiliation_strings":["Department of Mechanical Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye"],"raw_orcid":"https://orcid.org/0000-0001-6142-1288","affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Faculty of Technology, Pamukkale University, Denizli, 20160, T\u00fcrkiye","institution_ids":["https://openalex.org/I48843708"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5007131360"],"corresponding_institution_ids":["https://openalex.org/I48843708"],"apc_list":{"value":3730,"currency":"USD","value_usd":3730},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"264","issue":null,"first_page":"156923","last_page":"156923"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10117","display_name":"Advanced Combustion Engine Technologies","score":0.9961000084877014,"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"}},"topics":[{"id":"https://openalex.org/T10117","display_name":"Advanced Combustion Engine Technologies","score":0.9961000084877014,"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"}},{"id":"https://openalex.org/T13990","display_name":"Engine and Fuel Emissions","score":0.0010999999940395355,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive 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/T10808","display_name":"Electric and Hybrid Vehicle Technologies","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive 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/spark-ignition-engine","display_name":"spark ignition engine","score":0.8679999709129333},{"id":"https://openalex.org/keywords/surrogate-based-optimization","display_name":"surrogate-based optimization","score":0.7829999923706055},{"id":"https://openalex.org/keywords/gaussian-process-regression","display_name":"Gaussian process regression","score":0.9769999980926514},{"id":"https://openalex.org/keywords/grey-wolf-optimizer","display_name":"grey wolf optimizer","score":0.8399999737739563},{"id":"https://openalex.org/keywords/engine-thermal-efficiency","display_name":"engine thermal efficiency","score":0.6880000233650208},{"id":"https://openalex.org/keywords/fuel-conservation","display_name":"fuel consumption reduction","score":0.8949999809265137},{"id":"https://openalex.org/keywords/combustion-instability","display_name":"combustion instability","score":0.8330000042915344}],"concepts":[{"id":"https://openalex.org/C81692654","wikidata":"https://www.wikidata.org/wiki/Q225926","display_name":"Kriging","level":2,"score":0.7623000144958496},{"id":"https://openalex.org/C131675550","wikidata":"https://www.wikidata.org/wiki/Q7646884","display_name":"Surrogate model","level":2,"score":0.5608000159263611},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5175999999046326},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.5041999816894531},{"id":"https://openalex.org/C49937458","wikidata":"https://www.wikidata.org/wiki/Q2599292","display_name":"Probabilistic logic","level":2,"score":0.45570001006126404},{"id":"https://openalex.org/C68387754","wikidata":"https://www.wikidata.org/wiki/Q7271585","display_name":"Schedule","level":2,"score":0.4535999894142151},{"id":"https://openalex.org/C105923489","wikidata":"https://www.wikidata.org/wiki/Q133235","display_name":"Combustion","level":2,"score":0.44940000772476196},{"id":"https://openalex.org/C61326573","wikidata":"https://www.wikidata.org/wiki/Q1496376","display_name":"Gaussian process","level":3,"score":0.44850000739097595},{"id":"https://openalex.org/C45882903","wikidata":"https://www.wikidata.org/wiki/Q5042317","display_name":"Fuel efficiency","level":2,"score":0.4287000000476837},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.41359999775886536},{"id":"https://openalex.org/C2778565505","wikidata":"https://www.wikidata.org/wiki/Q2207566","display_name":"Spec#","level":2,"score":0.35920000076293945},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.34779998660087585},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.34290000796318054},{"id":"https://openalex.org/C107551265","wikidata":"https://www.wikidata.org/wiki/Q1458245","display_name":"Displacement (psychology)","level":2,"score":0.3319000005722046},{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.3199000060558319},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.31630000472068787},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.3133000135421753},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.29840001463890076},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.2825999855995178},{"id":"https://openalex.org/C103697071","wikidata":"https://www.wikidata.org/wiki/Q39558","display_name":"Gasoline","level":2,"score":0.2806999981403351},{"id":"https://openalex.org/C62200009","wikidata":"https://www.wikidata.org/wiki/Q2994681","display_name":"Thrust specific fuel consumption","level":3,"score":0.27480000257492065},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.26809999346733093},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.26440000534057617},{"id":"https://openalex.org/C156273044","wikidata":"https://www.wikidata.org/wiki/Q4913766","display_name":"Bin","level":2,"score":0.26159998774528503},{"id":"https://openalex.org/C174379495","wikidata":"https://www.wikidata.org/wiki/Q3523888","display_name":"Thermal hydraulics","level":3,"score":0.26159998774528503},{"id":"https://openalex.org/C21880701","wikidata":"https://www.wikidata.org/wiki/Q2144042","display_name":"Process engineering","level":1,"score":0.2556000053882599},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2515000104904175}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.ijhydene.2026.156923","doi":"https://doi.org/10.1016/j.ijhydene.2026.156923","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.ijhydene.2026.156923","pdf_url":null,"source":{"id":"https://openalex.org/S48860480","display_name":"International Journal of Hydrogen Energy","issn_l":"0360-3199","issn":["0360-3199","1879-3487"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Hydrogen Energy","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9853000044822693,"id":"https://metadata.un.org/sdg/7"},{"display_name":"Industry, innovation and infrastructure","score":0.5378999710083008,"id":"https://metadata.un.org/sdg/9"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W422250738","https://openalex.org/W2039133306","https://openalex.org/W2061438946","https://openalex.org/W2129339844","https://openalex.org/W3008320384","https://openalex.org/W3103675312","https://openalex.org/W3135997938","https://openalex.org/W3161277505","https://openalex.org/W3199911621","https://openalex.org/W3212074863","https://openalex.org/W4205238155","https://openalex.org/W4285401257","https://openalex.org/W4308034893","https://openalex.org/W4308127045","https://openalex.org/W4381431236","https://openalex.org/W4384038546","https://openalex.org/W4389750082","https://openalex.org/W4390122725","https://openalex.org/W4391756043","https://openalex.org/W4399251117","https://openalex.org/W4399859281","https://openalex.org/W4403145447","https://openalex.org/W4411895432","https://openalex.org/W4411973046","https://openalex.org/W7131818585"],"related_works":["https://openalex.org/W6922433694","https://openalex.org/W4313253605","https://openalex.org/W4404735414","https://openalex.org/W2604620664","https://openalex.org/W3161277505","https://openalex.org/W2900614333","https://openalex.org/W7220978981","https://openalex.org/W7203898968","https://openalex.org/W3096473159","https://openalex.org/W7215988273"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2026-08-08T00:00:00"}