{"id":"https://openalex.org/A5111527281","orcid":null,"observed_orcids":[],"display_name":"Fred K. Choy","raw_author_names":["Choy, F. K.","Choy, Fred K.","Choy. F. K.","F. CHOY","F. Choy","F. K. CHOY","F. K. Choy","F.K. Choy","FRED CHOY","Fred Choy","Fred K. Choy"],"full_name":"Fred K. Choy","works_count":98,"cited_by_count":2270,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":24,"i10_index":44},"ids":{"openalex":"https://openalex.org/A5111527281","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I110152177","ror":"https://ror.org/02kyckx55","display_name":"University of Akron","country_code":"US","type":"education","lineage":["https://openalex.org/I110152177"]},"years":[2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987]},{"institution":{"id":"https://openalex.org/I2799786008","ror":"https://ror.org/059fqnc42","display_name":"Glenn Research Center","country_code":"US","type":"facility","lineage":["https://openalex.org/I2799786008","https://openalex.org/I4210124779"]},"years":[1993,1991]}],"last_known_institutions":[{"id":"https://openalex.org/I110152177","ror":"https://ror.org/02kyckx55","display_name":"University of Akron","country_code":"US","type":"education","lineage":["https://openalex.org/I110152177"]}],"topics":[{"id":"https://openalex.org/T11062","display_name":"Gear and Bearing Dynamics Analysis","count":66,"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/T12206","display_name":"Vibration and Dynamic Analysis","count":42,"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","count":34,"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/T10220","display_name":"Machine Fault Diagnosis Techniques","count":29,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T13451","display_name":"Mechanical Engineering Research and Applications","count":19,"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"}}],"topic_share":[{"id":"https://openalex.org/T11062","display_name":"Gear and Bearing Dynamics Analysis","value":0.000284,"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","value":0.0001447,"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/T12435","display_name":"Bladed Disk Vibration Dynamics","value":0.0001439,"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/T12206","display_name":"Vibration and Dynamic Analysis","value":0.0001361,"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/T10220","display_name":"Machine Fault Diagnosis Techniques","value":0.0001171,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.7537010908126831},{"id":"66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","score":0.7127242684364319},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.6102980971336365},{"id":"78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","score":0.5379098057746887},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.41771167516708374}],"counts_by_year":[{"year":1987,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1991,"works_count":11,"oa_works_count":4,"cited_by_count":0},{"year":1992,"works_count":9,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":6,"oa_works_count":3,"cited_by_count":0},{"year":1994,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":1995,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":1997,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":2,"cited_by_count":74},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":85},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":104},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":115},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":122},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":107},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":108},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":117},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":84},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":116},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":108},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":95},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":61},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":77},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":60}],"display_name_alternatives":["Choy, F. K.","Choy, Fred K.","Choy. F. K.","F. CHOY","F. Choy","F. K. CHOY","F. K. Choy","F.K. Choy","FRED CHOY","Fred Choy","Fred K. Choy"],"block_key":"f choy","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111527281","awards_count":1,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5111527281","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}