{"id":"https://openalex.org/W1925281282","doi":"https://doi.org/10.1109/apmc.1999.833735","title":"An alternative test for evaluating transformer-oil deterioration using microwaves","display_name":"An alternative test for evaluating transformer-oil deterioration using microwaves","publication_year":2003,"publication_date":"2003-01-22","ids":{"openalex":"https://openalex.org/W1925281282","doi":"https://doi.org/10.1109/apmc.1999.833735","mag":"1925281282"},"language":"en","primary_location":{"id":"doi:10.1109/apmc.1999.833735","doi":"https://doi.org/10.1109/apmc.1999.833735","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apmc.1999.833735","pdf_url":null,"source":{"id":"https://openalex.org/S4363608315","display_name":"Asia-Pacific Microwave Conference (APMC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"1999 Asia Pacific Microwave Conference. APMC'99. Microwaves Enter the 21st Century. Conference Proceedings (Cat. No.99TH8473)","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113721775","display_name":"Salah I. Al-Mously","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S.I. Al-Mously","raw_affiliation_strings":["Faculty of Electronics Engineering, Nasser Nations University, Bani Walid, Libya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Electronics Engineering, Nasser Nations University, Bani Walid, Libya","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002974207","display_name":"Asif Ahmed","orcid":"https://orcid.org/0000-0001-9957-5338","observed_orcids":["https://orcid.org/0000-0001-9957-5338"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A.Y. Ahmed","raw_affiliation_strings":["Faculty of Electronics Engineering, Nasser Nations University, Bani Walid, Libya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Electronics Engineering, Nasser Nations University, Bani Walid, Libya","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.15221583,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"884","last_page":"887"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11343","display_name":"Power Transformer Diagnostics and Insulation","score":0.6929000020027161,"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"}},"topics":[{"id":"https://openalex.org/T11343","display_name":"Power Transformer Diagnostics and Insulation","score":0.6929000020027161,"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/T11607","display_name":"Microwave and Dielectric Measurement Techniques","score":0.30469998717308044,"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/T10511","display_name":"High voltage insulation and dielectric phenomena","score":0.0017000000225380063,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/transformer-oil","display_name":"transformer oil","score":0.7590000033378601},{"id":"https://openalex.org/keywords/microwave-dielectric-measurement","display_name":"microwave dielectric measurement","score":0.8059999942779541},{"id":"https://openalex.org/keywords/complex-permittivity","display_name":"complex permittivity","score":0.996999979019165},{"id":"https://openalex.org/keywords/loss-tangent","display_name":"loss tangent","score":0.8109999895095825},{"id":"https://openalex.org/keywords/x-band","display_name":"X-band","score":0.843999981880188},{"id":"https://openalex.org/keywords/ku-band","display_name":"Ku-band","score":1.0},{"id":"https://openalex.org/keywords/short-circuited-waveguide","display_name":"short-circuited waveguide","score":0.9340000152587891}],"concepts":[{"id":"https://openalex.org/C97274863","wikidata":"https://www.wikidata.org/wiki/Q1040795","display_name":"Dissipation factor","level":3,"score":0.7824249267578125},{"id":"https://openalex.org/C181335627","wikidata":"https://www.wikidata.org/wiki/Q901418","display_name":"Transformer oil","level":4,"score":0.7775193452835083},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.661212682723999},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.6450949907302856},{"id":"https://openalex.org/C168651791","wikidata":"https://www.wikidata.org/wiki/Q211569","display_name":"Permittivity","level":3,"score":0.5700653791427612},{"id":"https://openalex.org/C133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","level":2,"score":0.5443548560142517},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5306153893470764},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.48198145627975464},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4476189911365509},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.42836302518844604},{"id":"https://openalex.org/C91066073","wikidata":"https://www.wikidata.org/wiki/Q1417868","display_name":"Dielectric loss","level":3,"score":0.42601025104522705},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3188640773296356},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.13659602403640747}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/apmc.1999.833735","doi":"https://doi.org/10.1109/apmc.1999.833735","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apmc.1999.833735","pdf_url":null,"source":{"id":"https://openalex.org/S4363608315","display_name":"Asia-Pacific Microwave Conference (APMC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"1999 Asia Pacific Microwave Conference. APMC'99. Microwaves Enter the 21st Century. Conference Proceedings (Cat. No.99TH8473)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W569069139","https://openalex.org/W1552552843","https://openalex.org/W1981182303","https://openalex.org/W1991159378","https://openalex.org/W2006415218","https://openalex.org/W2016775142","https://openalex.org/W2035822545","https://openalex.org/W2036321297","https://openalex.org/W2082941244","https://openalex.org/W2095107693","https://openalex.org/W2117536898","https://openalex.org/W2125510348","https://openalex.org/W2150293638","https://openalex.org/W2949041084","https://openalex.org/W3150359633","https://openalex.org/W4210616605","https://openalex.org/W4298270571"],"related_works":["https://openalex.org/W2338150605","https://openalex.org/W2015469607","https://openalex.org/W2165864469","https://openalex.org/W2137238182","https://openalex.org/W2119335518","https://openalex.org/W7058485805","https://openalex.org/W3208547748","https://openalex.org/W2053372334","https://openalex.org/W2005226054","https://openalex.org/W2946758030"],"abstract_inverted_index":{"This":[0],"paper":[1],"describes":[2],"the":[3,8,27,34,62,67,71,82,86,105],"sensitivity":[4],"of":[5,14,20,37,65,85],"microwaves":[6],"to":[7,54,97],"chemical":[9],"and":[10,41,70,93],"physical":[11],"specification":[12],"variation":[13],"a":[15,21],"power":[16,22],"transformer-oil.":[17],"The":[18],"evaluation":[19,102],"transformer-oil":[23,79,101],"deterioration":[24],"by":[25],"measuring":[26],"complex":[28],"permittivity":[29],"(complex":[30],"dielectric":[31,68],"constant)":[32],"in":[33],"frequency":[35],"range":[36],"X-band":[38],"(8.5-10.5":[39],"GHz)":[40],"Ku-band":[42],"(17.63-18.07":[43],"GHz)is":[44],"investigated.":[45],"A":[46],"completely":[47],"filled":[48],"short-circuited":[49],"waveguide":[50],"technique":[51],"is":[52,59],"used":[53],"perform":[55],"these":[56],"measurements.":[57],"It":[58],"shown":[60],"that":[61],"microwave":[63],"measurement":[64,87,108],"both":[66],"constant":[69],"loss":[72],"tangent":[73],"can":[74],"be":[75],"successfully":[76],"implemented":[77],"for":[78,100],"evaluation.":[80],"Moreover,":[81],"low":[83],"cost":[84],"set-up":[88],"together":[89],"with":[90],"its":[91],"simplicity":[92],"safety":[94],"encourage":[95],"us":[96],"recommend":[98],"it":[99],"rather":[103],"than":[104],"traditional":[106],"high-voltage":[107],"techniques.":[109]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-05T09:50:58.205359","created_date":"2016-06-24T00:00:00"}