{"id":"https://openalex.org/A5113939356","orcid":null,"observed_orcids":[],"display_name":"Keisuke Ushijima","raw_author_names":["Keisuke USHIJIMA","Keisuke Ushijima"],"full_name":"Ushijima, Keisuke","works_count":87,"cited_by_count":785,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":13,"i10_index":16},"ids":{"openalex":"https://openalex.org/A5113939356","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I110378019","ror":"https://ror.org/049kefs16","display_name":"Southern Illinois University Carbondale","country_code":"US","type":"education","lineage":["https://openalex.org/I110378019","https://openalex.org/I2801502357"]},"years":[2005,2001]},{"institution":{"id":"https://openalex.org/I1289243028","ror":"https://ror.org/01qz5mb56","display_name":"Oak Ridge National Laboratory","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]},"years":[2005]},{"institution":{"id":"https://openalex.org/I130416959","ror":"https://ror.org/041jswc25","display_name":"Central Research Institute of Electric Power Industry","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I130416959"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I135598925","ror":"https://ror.org/00p4k0j84","display_name":"Kyushu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},"years":[2014,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999,1997,1996,1994,1992,1986,1983,1979]},{"institution":{"id":"https://openalex.org/I150744194","ror":"https://ror.org/00ntfnx83","display_name":"Waseda University","country_code":"JP","type":"education","lineage":["https://openalex.org/I150744194"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I203765153","ror":"https://ror.org/03hv1ad10","display_name":"Akita University","country_code":"JP","type":"education","lineage":["https://openalex.org/I203765153"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I22299242","ror":"https://ror.org/02kpeqv85","display_name":"Kyoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I4210091933","ror":"https://ror.org/00jgcnx83","display_name":"Nuclear Materials Authority","country_code":"EG","type":"government","lineage":["https://openalex.org/I4210091933"]},"years":[2006,2005]},{"institution":{"id":"https://openalex.org/I4210112040","ror":"https://ror.org/01cb2rv04","display_name":"National Research Institute of Astronomy and Geophysics","country_code":"EG","type":"facility","lineage":["https://openalex.org/I4210112040"]},"years":[2006]},{"institution":{"id":"https://openalex.org/I4405264767","ror":"https://ror.org/02xfpc920","display_name":"Disaster Prevention Research Institute, Kyoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242","https://openalex.org/I4405264767"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I74801974","ror":"https://ror.org/057zh3y96","display_name":"The University of Tokyo","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]},"years":[1996]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10572","display_name":"Geophysical and Geoelectrical Methods","count":69,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11609","display_name":"Geophysical Methods and Applications","count":49,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T11225","display_name":"Geothermal Energy Systems and Applications","count":31,"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/T11778","display_name":"Electrical and Bioimpedance Tomography","count":14,"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/T13067","display_name":"Geological Modeling and Analysis","count":9,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12757","display_name":"Diverse Academia and Research Topics","value":0.000545,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11225","display_name":"Geothermal Energy Systems and Applications","value":0.0003161,"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/T10572","display_name":"Geophysical and Geoelectrical Methods","value":0.0002751,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11609","display_name":"Geophysical Methods and Applications","value":0.0002458,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T11778","display_name":"Electrical and Bioimpedance Tomography","value":0.0001734,"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"}}],"x_concepts":[{"id":"111766609","wikidata":"https://www.wikidata.org/wiki/Q636340","display_name":"Geothermal gradient","score":0.9269500970840454},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.8793489933013916},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.6367597579956055},{"id":"8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","score":0.5845898985862732},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.4828132092952728}],"counts_by_year":[{"year":1979,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1983,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1986,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1992,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":2,"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":13,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":11,"oa_works_count":2,"cited_by_count":0},{"year":2002,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":5,"oa_works_count":3,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2005,"works_count":18,"oa_works_count":5,"cited_by_count":0},{"year":2006,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2014,"works_count":1,"oa_works_count":1,"cited_by_count":49},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":35},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":51},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":58},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":46},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":56},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":9}],"display_name_alternatives":["Keisuke USHIJIMA","Keisuke Ushijima"],"block_key":"k ushijima","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113939356","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}
