{"id":"https://openalex.org/A5000805504","orcid":null,"observed_orcids":[],"display_name":"Tomotsugu Demachi","raw_author_names":["Tomotsugu DEMACHI","Tomotsugu Demachi"],"full_name":"Demachi,  Tomotsugu","works_count":37,"cited_by_count":503,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":8,"i10_index":8},"ids":{"openalex":"https://openalex.org/A5000805504","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I112524849","ror":"https://ror.org/00xy44n04","display_name":"Yamagata University","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]},"years":[2014,2009,2004]},{"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":[2020,2018,2015,2012,2011]},{"institution":{"id":"https://openalex.org/I4405287273","ror":"https://ror.org/04n4s5p20","display_name":"Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4405287273"]},"years":[2020,2015,2012,2011]}],"last_known_institutions":[{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},{"id":"https://openalex.org/I4405287273","ror":"https://ror.org/04n4s5p20","display_name":"Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4405287273"]}],"topics":[{"id":"https://openalex.org/T10110","display_name":"earthquake and tectonic studies","count":33,"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/T13800","display_name":"Earthquake and Disaster Impact Studies","count":16,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","count":10,"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/T12424","display_name":"Earthquake Detection and Analysis","count":10,"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/T13177","display_name":"Geological and Geophysical Studies","count":9,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"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/T12424","display_name":"Earthquake Detection and Analysis","value":0.0001171,"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/T10110","display_name":"earthquake and tectonic studies","value":7.78e-05,"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/T13800","display_name":"Earthquake and Disaster Impact Studies","value":6.47e-05,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","value":4.2e-05,"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/T11405","display_name":"Geophysics and Gravity Measurements","value":3.73e-05,"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"}}],"x_concepts":[{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.9051918983459473},{"id":"165205528","wikidata":"https://www.wikidata.org/wiki/Q83371","display_name":"Seismology","score":0.899295449256897},{"id":"13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","score":0.76601243019104},{"id":"77928131","wikidata":"https://www.wikidata.org/wiki/Q193343","display_name":"Tectonics","score":0.4261086583137512},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.37417322397232056}],"counts_by_year":[{"year":2004,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":4,"oa_works_count":2,"cited_by_count":13},{"year":2013,"works_count":3,"oa_works_count":0,"cited_by_count":30},{"year":2014,"works_count":6,"oa_works_count":1,"cited_by_count":43},{"year":2015,"works_count":4,"oa_works_count":1,"cited_by_count":29},{"year":2016,"works_count":3,"oa_works_count":0,"cited_by_count":33},{"year":2017,"works_count":3,"oa_works_count":0,"cited_by_count":27},{"year":2018,"works_count":2,"oa_works_count":0,"cited_by_count":46},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2020,"works_count":2,"oa_works_count":1,"cited_by_count":32},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":55},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":25},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":21}],"display_name_alternatives":["Tomotsugu DEMACHI","Tomotsugu Demachi"],"block_key":"t demachi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5000805504","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5000805504","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}
