{"id":"https://openalex.org/A5003554291","orcid":"https://orcid.org/0000-0002-3714-6068","observed_orcids":["https://orcid.org/0000-0002-3714-6068"],"display_name":"Nagaratnam Sivakugan","raw_author_names":["N Sivakugan","N. SIVAKUGAN","N. Sivakugan","Nagaratnam Sivakugan","Sivakugan N.","Sivakugan Nagaratnam","Sivakugan, N.","Sivakugan, Nagaratnam"],"full_name":"Nagaratnam Sivakugan","works_count":301,"cited_by_count":5925,"summary_stats":{"2yr_mean_citedness":0.3181818181818182,"h_index":41,"i10_index":113},"ids":{"openalex":"https://openalex.org/A5003554291","orcid":"https://orcid.org/0000-0002-3714-6068","observed_orcids":["https://orcid.org/0000-0002-3714-6068"]},"affiliations":[{"institution":{"id":"https://openalex.org/I12079687","ror":"https://ror.org/05jhnwe22","display_name":"Edith Cowan University","country_code":"AU","type":"education","lineage":["https://openalex.org/I12079687"]},"years":[2010,2009]},{"institution":{"id":"https://openalex.org/I127339247","ror":"https://ror.org/020qm1538","display_name":"California State University System","country_code":"US","type":"education","lineage":["https://openalex.org/I127339247"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I142732210","ror":"https://ror.org/0051w2v06","display_name":"University of Engineering and Technology Lahore","country_code":"PK","type":"education","lineage":["https://openalex.org/I142732210"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I16292982","ror":"https://ror.org/011gmn932","display_name":"National Institute of Technology Rourkela","country_code":"IN","type":"education","lineage":["https://openalex.org/I16292982"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I204824540","ror":"https://ror.org/00jtmb277","display_name":"University of Wollongong","country_code":"AU","type":"education","lineage":["https://openalex.org/I204824540"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I219193219","ror":"https://ror.org/02dqehb95","display_name":"Purdue University West Lafayette","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]},"years":[2020,1988,1987]},{"institution":{"id":"https://openalex.org/I2799617873","ror":"https://ror.org/05tmv0d13","display_name":"American Society of Civil Engineers","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I2799617873"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I43522216","ror":"https://ror.org/03e26wv14","display_name":"California State University, Sacramento","country_code":"US","type":"education","lineage":["https://openalex.org/I43522216"]},"years":[2020,2010]},{"institution":{"id":"https://openalex.org/I47818738","ror":"https://ror.org/04wq8zb47","display_name":"Sultan Qaboos University","country_code":"OM","type":"education","lineage":["https://openalex.org/I47818738"]},"years":[1994,1993,1990,1989]},{"institution":{"id":"https://openalex.org/I56404289","ror":"https://ror.org/01kh5gc44","display_name":"Indian Institute of Technology BHU","country_code":"IN","type":"education","lineage":["https://openalex.org/I56404289","https://openalex.org/I91357014"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I57093077","ror":"https://ror.org/031rekg67","display_name":"Swinburne University of Technology","country_code":"AU","type":"education","lineage":["https://openalex.org/I57093077"]},"years":[2016]},{"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":[2020]},{"institution":{"id":"https://openalex.org/I86467917","ror":"https://ror.org/04gsp2c11","display_name":"James Cook University","country_code":"AU","type":"education","lineage":["https://openalex.org/I86467917"]},"years":[2026,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2001,1997,1994]},{"institution":{"id":"https://openalex.org/I91357014","ror":"https://ror.org/04cdn2797","display_name":"Banaras Hindu University","country_code":"IN","type":"education","lineage":["https://openalex.org/I91357014"]},"years":[2010,2009]}],"last_known_institutions":[{"id":"https://openalex.org/I86467917","ror":"https://ror.org/04gsp2c11","display_name":"James Cook University","country_code":"AU","type":"education","lineage":["https://openalex.org/I86467917"]}],"topics":[{"id":"https://openalex.org/T10233","display_name":"Geotechnical Engineering and Soil Mechanics","count":175,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T11375","display_name":"Geotechnical Engineering and Soil Stabilization","count":164,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T11046","display_name":"Geotechnical Engineering and Analysis","count":85,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T12865","display_name":"Tailings Management and Properties","count":57,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T13772","display_name":"Geomechanics and Mining Engineering","count":57,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"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/T12865","display_name":"Tailings Management and Properties","value":0.0010831,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T13046","display_name":"Electrokinetic Soil Remediation Techniques","value":0.0005389,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11375","display_name":"Geotechnical Engineering and Soil Stabilization","value":0.0004712,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T10233","display_name":"Geotechnical Engineering and Soil Mechanics","value":0.0003961,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T11046","display_name":"Geotechnical Engineering and Analysis","value":0.0002987,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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":"187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","score":0.8534009456634521},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8520846366882324},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.6810592412948608},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.6747999787330627},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.667719841003418}],"counts_by_year":[{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1989,"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":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":12,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":16,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":15,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":23,"oa_works_count":3,"cited_by_count":0},{"year":2012,"works_count":16,"oa_works_count":5,"cited_by_count":108},{"year":2013,"works_count":28,"oa_works_count":0,"cited_by_count":209},{"year":2014,"works_count":18,"oa_works_count":3,"cited_by_count":181},{"year":2015,"works_count":25,"oa_works_count":4,"cited_by_count":202},{"year":2016,"works_count":13,"oa_works_count":5,"cited_by_count":243},{"year":2017,"works_count":15,"oa_works_count":4,"cited_by_count":261},{"year":2018,"works_count":14,"oa_works_count":2,"cited_by_count":311},{"year":2019,"works_count":4,"oa_works_count":0,"cited_by_count":367},{"year":2020,"works_count":7,"oa_works_count":1,"cited_by_count":515},{"year":2021,"works_count":13,"oa_works_count":2,"cited_by_count":591},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":542},{"year":2023,"works_count":3,"oa_works_count":1,"cited_by_count":595},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":577},{"year":2025,"works_count":10,"oa_works_count":0,"cited_by_count":531},{"year":2026,"works_count":11,"oa_works_count":2,"cited_by_count":373}],"display_name_alternatives":["N Sivakugan","N. SIVAKUGAN","N. Sivakugan","Nagaratnam Sivakugan","Sivakugan N.","Sivakugan Nagaratnam","Sivakugan, N.","Sivakugan, Nagaratnam"],"block_key":"n sivakugan","works_api_url":"https://api.openalex.org/works?filter=author.id:A5003554291","awards_count":0,"updated_date":"2026-11-09T14:06:01","created_date":"2016-06-24T00:00:00"}