{"id":"https://openalex.org/A5088694174","orcid":null,"observed_orcids":[],"display_name":"MA Chang-xun","raw_author_names":["MA Chang-xun","Ma Changxun"],"full_name":"MA Chang-xun","works_count":3,"cited_by_count":18,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5088694174","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I139660479","ror":"https://ror.org/00f1zfq44","display_name":"Central South University","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]},"years":[2011]},{"institution":{"id":"https://openalex.org/I56934997","ror":"https://ror.org/03yph8055","display_name":"Changsha University of Science and Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I56934997"]},"years":[2012,2011]}],"last_known_institutions":[{"id":"https://openalex.org/I56934997","ror":"https://ror.org/03yph8055","display_name":"Changsha University of Science and Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I56934997"]}],"topics":[{"id":"https://openalex.org/T10220","display_name":"Machine Fault Diagnosis Techniques","count":2,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10876","display_name":"Fault Detection and Control Systems","count":2,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T11372","display_name":"Hydraulic and Pneumatic Systems","count":2,"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/T10571","display_name":"Robotic Mechanisms and Dynamics","count":1,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T11394","display_name":"Dynamics and Control of Mechanical Systems","count":1,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T13050","display_name":"Oil and Gas Production Techniques","value":1.22e-05,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"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/T11372","display_name":"Hydraulic and Pneumatic Systems","value":1.21e-05,"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/T10220","display_name":"Machine Fault Diagnosis Techniques","value":8.1e-06,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10876","display_name":"Fault Detection and Control Systems","value":6.9e-06,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10571","display_name":"Robotic Mechanisms and Dynamics","value":3.7e-06,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.5155594348907471},{"id":"11394606","wikidata":"https://www.wikidata.org/wiki/Q1972552","display_name":"Hydraulic machinery","score":0.48461994528770447},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.4399195909500122},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.4185834228992462},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.1573619246482849}],"counts_by_year":[{"year":2011,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["MA Chang-xun","Ma Changxun"],"block_key":"c ma","works_api_url":"https://api.openalex.org/works?filter=author.id:A5088694174","awards_count":0,"updated_date":"2026-10-27T12:30:23","created_date":"2016-06-24T00:00:00"}