{"id":"https://openalex.org/A5113468634","orcid":null,"observed_orcids":[],"display_name":"Roman Ulbrich","raw_author_names":["R Ulbrich","R. Ulbrich","Roman Ulbrich","Ulbrich, R.","Ulbrich, Roman"],"full_name":"Roman Ulbrich","works_count":90,"cited_by_count":410,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":8,"i10_index":8},"ids":{"openalex":"https://openalex.org/A5113468634","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I114112103","ror":"https://ror.org/0304hq317","display_name":"Leibniz University Hannover","country_code":"DE","type":"education","lineage":["https://openalex.org/I114112103"]},"years":[1994]},{"institution":{"id":"https://openalex.org/I119217307","ror":"https://ror.org/05sj5k538","display_name":"Opole University of Technology","country_code":"PL","type":"education","lineage":["https://openalex.org/I119217307"]},"years":[2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2009,2007,2003,2002,2001,1999,1990,1987,1986,1984]}],"last_known_institutions":[{"id":"https://openalex.org/I119217307","ror":"https://ror.org/05sj5k538","display_name":"Opole University of Technology","country_code":"PL","type":"education","lineage":["https://openalex.org/I119217307"]}],"topics":[{"id":"https://openalex.org/T11382","display_name":"Fluid Dynamics and Heat Transfer","count":24,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10615","display_name":"Granular flow and fluidized beds","count":21,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10850","display_name":"Heat Transfer and Boiling Studies","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"}},{"id":"https://openalex.org/T12350","display_name":"Particle Dynamics in Fluid Flows","count":16,"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/T12282","display_name":"Mineral Processing and Grinding","count":14,"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/T10850","display_name":"Heat Transfer and Boiling Studies","value":0.0001107,"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/T12537","display_name":"Flow Measurement and Analysis","value":0.0001033,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12350","display_name":"Particle Dynamics in Fluid Flows","value":8.76e-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/T11382","display_name":"Fluid Dynamics and Heat Transfer","value":8.59e-05,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10615","display_name":"Granular flow and fluidized beds","value":8.55e-05,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.6822723746299744},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.548336923122406},{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.5395770072937012},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.52032470703125},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.5101576447486877}],"counts_by_year":[{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":5,"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":6,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":5,"oa_works_count":1,"cited_by_count":10},{"year":2013,"works_count":5,"oa_works_count":0,"cited_by_count":14},{"year":2014,"works_count":8,"oa_works_count":4,"cited_by_count":10},{"year":2015,"works_count":8,"oa_works_count":4,"cited_by_count":29},{"year":2016,"works_count":4,"oa_works_count":1,"cited_by_count":24},{"year":2017,"works_count":7,"oa_works_count":5,"cited_by_count":19},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":22},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":28},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":22},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":22},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":26},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":7}],"display_name_alternatives":["R Ulbrich","R. Ulbrich","Roman Ulbrich","Ulbrich, R.","Ulbrich, Roman"],"block_key":"r ulbrich","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113468634","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}
