{"id":"https://openalex.org/A5080658773","orcid":null,"observed_orcids":[],"display_name":"Charles U. Ugwu","raw_author_names":["C UGWU","C. U. Ugwu","C.U. Ugwu","Charles  U. Ugwu","Charles U. Ugwu","Charles U.UGWU","Charles Ugwu"],"full_name":"Charles U. Ugwu","works_count":32,"cited_by_count":3904,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":13,"i10_index":17},"ids":{"openalex":"https://openalex.org/A5080658773","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]},"years":[2011,2008,2007,2005,2003,2001]},{"institution":{"id":"https://openalex.org/I4405282994","ror":"https://ror.org/00th4sq50","display_name":"Okinawa Industrial Technology Center","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4405282994"]},"years":[2011,2010,2009]},{"institution":{"id":"https://openalex.org/I530967","ror":"https://ror.org/05g13zd79","display_name":"Toronto Metropolitan University","country_code":"CA","type":"education","lineage":["https://openalex.org/I530967"]},"years":[2014]},{"institution":{"id":"https://openalex.org/I73613424","ror":"https://ror.org/01703db54","display_name":"National Institute of Advanced Industrial Science and Technology","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]},"years":[2011]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10476","display_name":"Algal biology and biofuel production","count":16,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10661","display_name":"biodegradable polymer synthesis and properties","count":12,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10864","display_name":"Fluid Dynamics and Mixing","count":10,"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/T10932","display_name":"Microbial Metabolic Engineering and Bioproduction","count":9,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10236","display_name":"Aquatic Ecosystems and Phytoplankton Dynamics","count":6,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T14285","display_name":"Biopolymer Synthesis and Applications","value":0.0001747,"subfield":{"id":"https://openalex.org/subfields/2402","display_name":"Applied Microbiology and Biotechnology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10476","display_name":"Algal biology and biofuel production","value":0.0001074,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10864","display_name":"Fluid Dynamics and Mixing","value":5.55e-05,"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/T12093","display_name":"Greenhouse Technology and Climate Control","value":4.61e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10661","display_name":"biodegradable polymer synthesis and properties","value":4.51e-05,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.6889345645904541},{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.5740198493003845},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.40495893359184265},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.2309715747833252},{"id":"54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","score":0.15578565001487732}],"counts_by_year":[{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":3,"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":6,"oa_works_count":2,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":127},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":179},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":199},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":205},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":195},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":219},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":229},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":260},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":299},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":327},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":340},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":314},{"year":2024,"works_count":1,"oa_works_count":0,"cited_by_count":307},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":280},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":211}],"display_name_alternatives":["C UGWU","C. U. Ugwu","C.U. Ugwu","Charles  U. Ugwu","Charles U. Ugwu","Charles U.UGWU","Charles Ugwu"],"block_key":"c ugwu","works_api_url":"https://api.openalex.org/works?filter=author.id:A5080658773","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5080658773","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}