{"id":"https://openalex.org/A5111858500","orcid":null,"observed_orcids":[],"display_name":"Da Hai Ren","raw_author_names":["Da Hai Ren","Da Ren"],"full_name":"Da Hai Ren","works_count":13,"cited_by_count":75,"summary_stats":{"2yr_mean_citedness":8.0,"h_index":3,"i10_index":1},"ids":{"openalex":"https://openalex.org/A5111858500","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1320553840","ror":"https://ror.org/03g03ge92","display_name":"Amgen (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I1320553840"]},"years":[2011,2010]},{"institution":{"id":"https://openalex.org/I143413998","ror":"https://ror.org/041j8js14","display_name":"Qingdao University of Science and Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I143413998"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I157507598","ror":"https://ror.org/00d7f8730","display_name":"Shenyang University of Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I157507598"]},"years":[2024,2022,2021,2019]},{"institution":{"id":"https://openalex.org/I99065089","ror":"https://ror.org/03cve4549","display_name":"Tsinghua University","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]},"years":[2015,2014,2013]}],"last_known_institutions":[{"id":"https://openalex.org/I157507598","ror":"https://ror.org/00d7f8730","display_name":"Shenyang University of Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I157507598"]}],"topics":[{"id":"https://openalex.org/T10278","display_name":"Electric Motor Design and Analysis","count":3,"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/T10504","display_name":"Sensorless Control of Electric Motors","count":3,"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/T10131","display_name":"Gold and Silver Nanoparticles Synthesis and Applications","count":2,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T10412","display_name":"Microfluidic and Capillary Electrophoresis Applications","count":2,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11255","display_name":"Microfluidic and Bio-sensing Technologies","count":2,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T13871","display_name":"Melamine detection and toxicity","value":0.000206,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food 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/T12850","display_name":"Field-Flow Fractionation Techniques","value":4.31e-05,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11255","display_name":"Microfluidic and Bio-sensing Technologies","value":2.14e-05,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T12340","display_name":"Anodic Oxide Films and Nanostructures","value":1.64e-05,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"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/T10504","display_name":"Sensorless Control of Electric Motors","value":1.38e-05,"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":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7270937561988831},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.5121867060661316},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.5035330653190613},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.4872516691684723},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.3583495616912842}],"counts_by_year":[{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2013,"works_count":3,"oa_works_count":2,"cited_by_count":6},{"year":2014,"works_count":2,"oa_works_count":2,"cited_by_count":7},{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":2},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2021,"works_count":1,"oa_works_count":0,"cited_by_count":5},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":6}],"display_name_alternatives":["Da Hai Ren","Da Ren"],"block_key":"d ren","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111858500","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}