{"id":"https://openalex.org/A5111992267","orcid":null,"observed_orcids":[],"display_name":"H.J. Holland","raw_author_names":["H J Holland","H. Holland","H. J. Holland","H.J Holland","H.J. Holland","Holland, H.J."],"full_name":"H. J. Holland","works_count":85,"cited_by_count":1605,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":18,"i10_index":37},"ids":{"openalex":"https://openalex.org/A5111992267","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1338503839","ror":"https://ror.org/02tfv4t78","display_name":"Corning (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I1338503839"]},"years":[1987]},{"institution":{"id":"https://openalex.org/I94624287","ror":"https://ror.org/006hf6230","display_name":"University of Twente","country_code":"NL","type":"education","lineage":["https://openalex.org/I94624287"]},"years":[2023,2022,2020,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994]}],"last_known_institutions":[{"id":"https://openalex.org/I94624287","ror":"https://ror.org/006hf6230","display_name":"University of Twente","country_code":"NL","type":"education","lineage":["https://openalex.org/I94624287"]}],"topics":[{"id":"https://openalex.org/T12139","display_name":"Advanced Thermodynamic Systems and Engines","count":63,"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/T11774","display_name":"Adsorption and Cooling Systems","count":26,"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/T13200","display_name":"Spacecraft and Cryogenic Technologies","count":21,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11803","display_name":"Superconducting and THz Device Technology","count":20,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11808","display_name":"Superconducting Materials and Applications","count":19,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T13640","display_name":"Ranque-Hilsch vortex tube","value":0.0012459,"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/T12139","display_name":"Advanced Thermodynamic Systems and Engines","value":0.0006101,"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/T13200","display_name":"Spacecraft and Cryogenic Technologies","value":0.0002729,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11803","display_name":"Superconducting and THz Device Technology","value":0.0001709,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11774","display_name":"Adsorption and Cooling Systems","value":0.0001694,"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"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7758171558380127},{"id":"116915560","wikidata":"https://www.wikidata.org/wiki/Q83504","display_name":"Nuclear engineering","score":0.6674326658248901},{"id":"97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","score":0.6431511640548706},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.6164213418960571},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.360576331615448}],"counts_by_year":[{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":3,"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":8,"oa_works_count":2,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":7,"oa_works_count":5,"cited_by_count":0},{"year":2008,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":3,"oa_works_count":1,"cited_by_count":48},{"year":2013,"works_count":6,"oa_works_count":2,"cited_by_count":69},{"year":2014,"works_count":3,"oa_works_count":2,"cited_by_count":41},{"year":2015,"works_count":4,"oa_works_count":4,"cited_by_count":50},{"year":2016,"works_count":5,"oa_works_count":5,"cited_by_count":48},{"year":2017,"works_count":6,"oa_works_count":6,"cited_by_count":81},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":37},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":75},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":39},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":59},{"year":2023,"works_count":2,"oa_works_count":2,"cited_by_count":75},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":65},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":31}],"display_name_alternatives":["H J Holland","H. Holland","H. J. Holland","H.J Holland","H.J. Holland","Holland, H.J."],"block_key":"h holland","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111992267","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5111992267","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}