{"id":"https://openalex.org/W3098536167","doi":"https://doi.org/10.3390/e22111306","title":"Noise Reduction in Spur Gear Systems","display_name":"Noise Reduction in Spur Gear Systems","publication_year":2020,"publication_date":"2020-11-16","ids":{"openalex":"https://openalex.org/W3098536167","doi":"https://doi.org/10.3390/e22111306","mag":"3098536167","pmid":"https://pubmed.ncbi.nlm.nih.gov/33287070"},"language":"en","primary_location":{"id":"doi:10.3390/e22111306","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22111306","pdf_url":"https://www.mdpi.com/1099-4300/22/11/1306/pdf?version=1605605499","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","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/1099-4300/22/11/1306/pdf?version=1605605499","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5016726560","display_name":"Aurelio Liguori","orcid":"https://orcid.org/0000-0002-0972-3809"},"institutions":[{"id":"https://openalex.org/I4210165932","display_name":"Giustino Fortunato University","ror":"https://ror.org/0592q0v50","country_code":"IT","type":"education","lineage":["https://openalex.org/I4210165932"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Aurelio Liguori","raw_affiliation_strings":["Degree Course in Transport, University \u201cG. Fortunato\u201d, Viale Raffaele Delcogliano, 12, 82100 Benevento, Italy","Degree Course in Transport, University \"G. Fortunato\", Viale Raffaele Delcogliano, 12, 82100 Benevento, Italy"],"raw_orcid":"https://orcid.org/0000-0002-0972-3809","affiliations":[{"raw_affiliation_string":"Degree Course in Transport, University \u201cG. Fortunato\u201d, Viale Raffaele Delcogliano, 12, 82100 Benevento, Italy","institution_ids":["https://openalex.org/I4210165932"]},{"raw_affiliation_string":"Degree Course in Transport, University \"G. Fortunato\", Viale Raffaele Delcogliano, 12, 82100 Benevento, Italy","institution_ids":["https://openalex.org/I4210165932"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039152712","display_name":"Enrico Armentani","orcid":"https://orcid.org/0000-0002-3511-6121"},"institutions":[{"id":"https://openalex.org/I71267560","display_name":"University of Naples Federico II","ror":"https://ror.org/05290cv24","country_code":"IT","type":"education","lineage":["https://openalex.org/I71267560"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Enrico Armentani","raw_affiliation_strings":["Department of Chemical, Materials and Production Engineering, University of Naples \u201cFederico II\u201d, Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","Department of Chemical, Materials and Production Engineering, University of Naples \"Federico II\", Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy"],"raw_orcid":"https://orcid.org/0000-0002-3511-6121","affiliations":[{"raw_affiliation_string":"Department of Chemical, Materials and Production Engineering, University of Naples \u201cFederico II\u201d, Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","institution_ids":["https://openalex.org/I71267560"]},{"raw_affiliation_string":"Department of Chemical, Materials and Production Engineering, University of Naples \"Federico II\", Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","institution_ids":["https://openalex.org/I71267560"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063538656","display_name":"Alcide Bertocco","orcid":"https://orcid.org/0000-0003-1268-9485"},"institutions":[{"id":"https://openalex.org/I71267560","display_name":"University of Naples Federico II","ror":"https://ror.org/05290cv24","country_code":"IT","type":"education","lineage":["https://openalex.org/I71267560"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Alcide Bertocco","raw_affiliation_strings":["Department of Chemical, Materials and Production Engineering, University of Naples \u201cFederico II\u201d, Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","Department of Chemical, Materials and Production Engineering, University of Naples \"Federico II\", Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemical, Materials and Production Engineering, University of Naples \u201cFederico II\u201d, Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","institution_ids":["https://openalex.org/I71267560"]},{"raw_affiliation_string":"Department of Chemical, Materials and Production Engineering, University of Naples \"Federico II\", Piazzale V. Tecchio, 80, 80125 Napoli (NA), Italy","institution_ids":["https://openalex.org/I71267560"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085319032","display_name":"Andrea Formato","orcid":"https://orcid.org/0000-0002-5841-6661"},"institutions":[{"id":"https://openalex.org/I71267560","display_name":"University of Naples Federico II","ror":"https://ror.org/05290cv24","country_code":"IT","type":"education","lineage":["https://openalex.org/I71267560"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Andrea Formato","raw_affiliation_strings":["Department of Agricultural Science, University of Naples \u201cFederico II\u201d, Via Universit\u00e0 100, 80045 Portici (NA), Italy"],"raw_orcid":"https://orcid.org/0000-0002-5841-6661","affiliations":[{"raw_affiliation_string":"Department of Agricultural Science, University of Naples \u201cFederico II\u201d, Via Universit\u00e0 100, 80045 Portici (NA), Italy","institution_ids":["https://openalex.org/I71267560"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058161760","display_name":"Arcangelo Pellegrino","orcid":"https://orcid.org/0000-0002-1433-8892"},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Arcangelo Pellegrino","raw_affiliation_strings":["Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy","institution_ids":["https://openalex.org/I131729948"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087487622","display_name":"Francesco Villecco","orcid":"https://orcid.org/0000-0001-6545-4589"},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Francesco Villecco","raw_affiliation_strings":["Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy"],"raw_orcid":"https://orcid.org/0000-0001-6545-4589","affiliations":[{"raw_affiliation_string":"Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy","institution_ids":["https://openalex.org/I131729948"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5085319032"],"corresponding_institution_ids":["https://openalex.org/I71267560"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":3.0843,"has_fulltext":false,"cited_by_count":36,"citation_normalized_percentile":{"value":0.91571335,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"22","issue":"11","first_page":"1306","last_page":"1306"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11062","display_name":"Gear and Bearing Dynamics Analysis","score":0.9997000098228455,"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/T11062","display_name":"Gear and Bearing Dynamics Analysis","score":0.9997000098228455,"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":0.9921000003814697,"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/T10188","display_name":"Advanced machining processes and optimization","score":0.9836999773979187,"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/lubrication","display_name":"Lubrication","score":0.8298950791358948},{"id":"https://openalex.org/keywords/rotational-speed","display_name":"Rotational speed","score":0.6376182436943054},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.6354115605354309},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.516174852848053},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.4981200695037842},{"id":"https://openalex.org/keywords/viscosity","display_name":"Viscosity","score":0.46309685707092285},{"id":"https://openalex.org/keywords/mechanical-engineering","display_name":"Mechanical engineering","score":0.45418915152549744},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.40237125754356384},{"id":"https://openalex.org/keywords/mechanics","display_name":"Mechanics","score":0.3343799114227295},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.2972549796104431},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.2824048697948456},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2752889394760132},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.21616533398628235},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18809038400650024}],"concepts":[{"id":"https://openalex.org/C184608416","wikidata":"https://www.wikidata.org/wiki/Q1455803","display_name":"Lubrication","level":2,"score":0.8298950791358948},{"id":"https://openalex.org/C81063470","wikidata":"https://www.wikidata.org/wiki/Q1256787","display_name":"Rotational speed","level":2,"score":0.6376182436943054},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.6354115605354309},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.516174852848053},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.4981200695037842},{"id":"https://openalex.org/C127172972","wikidata":"https://www.wikidata.org/wiki/Q128709","display_name":"Viscosity","level":2,"score":0.46309685707092285},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.45418915152549744},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40237125754356384},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.3343799114227295},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.2972549796104431},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.2824048697948456},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2752889394760132},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.21616533398628235},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18809038400650024},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/e22111306","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22111306","pdf_url":"https://www.mdpi.com/1099-4300/22/11/1306/pdf?version=1605605499","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},{"id":"pmid:33287070","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33287070","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":"Entropy (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:32678efbf67a493ab8f6ed9a5a6d637e","is_oa":true,"landing_page_url":"https://doaj.org/article/32678efbf67a493ab8f6ed9a5a6d637e","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":"Entropy, Vol 22, Iss 11, p 1306 (2020)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1099-4300/22/11/1306/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/e22111306","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":"Entropy; Volume 22; Issue 11; Pages: 1306","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7712307","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7712307","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":"Entropy (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/e22111306","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22111306","pdf_url":"https://www.mdpi.com/1099-4300/22/11/1306/pdf?version=1605605499","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.8399999737739563,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W3098536167.pdf"},"referenced_works_count":52,"referenced_works":["https://openalex.org/W1964702573","https://openalex.org/W1972281866","https://openalex.org/W2006662046","https://openalex.org/W2023871616","https://openalex.org/W2032032016","https://openalex.org/W2058317230","https://openalex.org/W2091630122","https://openalex.org/W2130166830","https://openalex.org/W2133708802","https://openalex.org/W2469467851","https://openalex.org/W2504557117","https://openalex.org/W2576215667","https://openalex.org/W2594535340","https://openalex.org/W2609546373","https://openalex.org/W2617758388","https://openalex.org/W2623554742","https://openalex.org/W2741030676","https://openalex.org/W2753935263","https://openalex.org/W2850092478","https://openalex.org/W2888388442","https://openalex.org/W2892666044","https://openalex.org/W2903854667","https://openalex.org/W2923716677","https://openalex.org/W2924502565","https://openalex.org/W2948607826","https://openalex.org/W2951223885","https://openalex.org/W2958907482","https://openalex.org/W2959930990","https://openalex.org/W2968708071","https://openalex.org/W2972576425","https://openalex.org/W2976552073","https://openalex.org/W2978899847","https://openalex.org/W2989052101","https://openalex.org/W2991029363","https://openalex.org/W2994239313","https://openalex.org/W2997338476","https://openalex.org/W3005044949","https://openalex.org/W3015013980","https://openalex.org/W3015080314","https://openalex.org/W3021694898","https://openalex.org/W3033694736","https://openalex.org/W3033998285","https://openalex.org/W3034092183","https://openalex.org/W3036548030","https://openalex.org/W3052836725","https://openalex.org/W3082515012","https://openalex.org/W3093260788","https://openalex.org/W3208230679","https://openalex.org/W3211244972","https://openalex.org/W6641358960","https://openalex.org/W6779641100","https://openalex.org/W6836166156"],"related_works":["https://openalex.org/W4375864176","https://openalex.org/W2365326462","https://openalex.org/W2709480652","https://openalex.org/W2524102925","https://openalex.org/W3143848964","https://openalex.org/W2044482983","https://openalex.org/W2074259782","https://openalex.org/W1981799021","https://openalex.org/W4226264597","https://openalex.org/W3185723476"],"abstract_inverted_index":{"This":[0],"article":[1],"lists":[2],"some":[3],"tips":[4],"for":[5,113],"reducing":[6],"gear":[7,135],"case":[8],"noise.":[9],"With":[10],"this":[11],"aim,":[12],"a":[13,60,156],"static":[14,115],"analysis":[15,64,116],"was":[16,65,68,122,154],"carried":[17],"out":[18],"in":[19,46,96,109],"order":[20,47,97],"to":[21,48,55,98,130,178],"describe":[22],"how":[23],"stresses":[24],"resulting":[25],"from":[26,51,128],"meshing":[27],"gears":[28],"affect":[29],"the":[30,41,52,74,79,89,110,114,126,134,139,143,146,150,174],"acoustic":[31,147],"emissions.":[32,148],"Different":[33,82],"parameters":[34,83],"were":[35,84],"taken":[36,170],"into":[37,171,182],"account,":[38],"such":[39,87],"as":[40,88],"friction,":[42,90],"material,":[43,92],"and":[44,54,93,117],"lubrication,":[45,91],"validate":[49],"ideas":[50],"literature":[53],"make":[56,99],"several":[57],"comparisons.":[58,102],"Furthermore,":[59],"coupled":[61],"Eulerian-Lagrangian":[62],"(CEL)":[63],"performed,":[66],"which":[67],"an":[69],"innovative":[70],"way":[71],"of":[72,78],"evaluating":[73],"sound":[75],"pressure":[76],"level":[77],"aforementioned":[80],"gears.":[81],"considered":[85,155],"again,":[86],"rotational":[94,140],"speed,":[95],"different":[100],"research":[101,181],"The":[103],"analytical":[104],"results":[105],"agreed":[106],"with":[107],"those":[108],"literature,":[111],"both":[112],"CEL":[118,151],"analysis-for":[119],"example,":[120],"it":[121],"shown":[123],"that":[124,180],"changing":[125],"material":[127],"steel":[129],"ductile":[131],"iron":[132],"improved":[133],"noise,":[136],"while":[137],"increasing":[138],"speed":[141],"or":[142,162],"friction":[144],"increased":[145],"Regarding":[149],"analysis,":[152],"air":[153],"perfect":[157],"gas,":[158],"but":[159],"its":[160],"viscosity":[161],"another":[163],"state":[164,179],"equation":[165],"could":[166],"have":[167],"also":[168],"been":[169],"account.":[172],"Therefore,":[173],"above":[175],"allowed":[176],"us":[177],"these":[183],"scientific":[184],"fields":[185],"will":[186],"bring":[187],"about":[188],"reliable":[189],"results.":[190]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":13},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":3}],"updated_date":"2026-05-22T06:13:13.366637","created_date":"2025-10-10T00:00:00"}