{"id":"https://openalex.org/W3157494057","doi":"https://doi.org/10.3390/rs13091757","title":"Aerial Mapping of Odorous Gases in a Wastewater Treatment Plant Using a Small Drone","display_name":"Aerial Mapping of Odorous Gases in a Wastewater Treatment Plant Using a Small Drone","publication_year":2021,"publication_date":"2021-04-30","ids":{"openalex":"https://openalex.org/W3157494057","doi":"https://doi.org/10.3390/rs13091757","mag":"3157494057"},"language":"en","primary_location":{"id":"doi:10.3390/rs13091757","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13091757","pdf_url":"https://www.mdpi.com/2072-4292/13/9/1757/pdf?version=1620351901","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/13/9/1757/pdf?version=1620351901","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5017696252","display_name":"Javier Burgu\u00e9s","orcid":"https://orcid.org/0000-0002-7327-6396"},"institutions":[{"id":"https://openalex.org/I4210132884","display_name":"Barcelona Institute of Science and Technology","ror":"https://ror.org/03kpps236","country_code":"ES","type":"education","lineage":["https://openalex.org/I4210132884"]},{"id":"https://openalex.org/I4210147769","display_name":"Institute for Bioengineering of Catalonia","ror":"https://ror.org/056h71x09","country_code":"ES","type":"facility","lineage":["https://openalex.org/I4210132884","https://openalex.org/I4210147769","https://openalex.org/I4387153040"]},{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Javier Burgu\u00e9s","raw_affiliation_strings":["Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Marti i Franqu\u00e9s 1, 08028 Barcelona, Spain","Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10-12, 08028 Barcelona, Spain","The Barcelona Institute of Science and Technology, Carrer del Comte d\u2019Urgell 187, 08036 Barcelona, Spain","The Barcelona Institute of Science and Technology, Carrer del Comte d'Urgell 187, 08036 Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Marti i Franqu\u00e9s 1, 08028 Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]},{"raw_affiliation_string":"Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10-12, 08028 Barcelona, Spain","institution_ids":["https://openalex.org/I4210147769"]},{"raw_affiliation_string":"The Barcelona Institute of Science and Technology, Carrer del Comte d\u2019Urgell 187, 08036 Barcelona, Spain","institution_ids":["https://openalex.org/I4210132884"]},{"raw_affiliation_string":"The Barcelona Institute of Science and Technology, Carrer del Comte d'Urgell 187, 08036 Barcelona, Spain","institution_ids":["https://openalex.org/I4210132884"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063466955","display_name":"Mar\u00eda Deseada Esclapez Vicente","orcid":"https://orcid.org/0000-0003-2946-9841"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mar\u00eda Deseada Esclapez","raw_affiliation_strings":["Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain"],"affiliations":[{"raw_affiliation_string":"Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076481446","display_name":"Silvia Do\u00f1ate","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Silvia Do\u00f1ate","raw_affiliation_strings":["Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain"],"affiliations":[{"raw_affiliation_string":"Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101581733","display_name":"L. Pastor","orcid":"https://orcid.org/0000-0002-0279-1948"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Laura Pastor","raw_affiliation_strings":["Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain"],"affiliations":[{"raw_affiliation_string":"Depuraci\u00f3n de Aguas del Mediterr\u00e1neo (DAM), Avenida Benjam\u00edn Franklin 21, Parque Tecnol\u00f3gico, 46980 Paterna, Spain","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064169996","display_name":"Santiago Marco","orcid":"https://orcid.org/0000-0003-2663-2965"},"institutions":[{"id":"https://openalex.org/I4210132884","display_name":"Barcelona Institute of Science and Technology","ror":"https://ror.org/03kpps236","country_code":"ES","type":"education","lineage":["https://openalex.org/I4210132884"]},{"id":"https://openalex.org/I4210147769","display_name":"Institute for Bioengineering of Catalonia","ror":"https://ror.org/056h71x09","country_code":"ES","type":"facility","lineage":["https://openalex.org/I4210132884","https://openalex.org/I4210147769","https://openalex.org/I4387153040"]},{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Santiago Marco","raw_affiliation_strings":["Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Marti i Franqu\u00e9s 1, 08028 Barcelona, Spain","Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10-12, 08028 Barcelona, Spain","The Barcelona Institute of Science and Technology, Carrer del Comte d\u2019Urgell 187, 08036 Barcelona, Spain","The Barcelona Institute of Science and Technology, Carrer del Comte d'Urgell 187, 08036 Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Marti i Franqu\u00e9s 1, 08028 Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]},{"raw_affiliation_string":"Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 10-12, 08028 Barcelona, Spain","institution_ids":["https://openalex.org/I4210147769"]},{"raw_affiliation_string":"The Barcelona Institute of Science and Technology, Carrer del Comte d\u2019Urgell 187, 08036 Barcelona, Spain","institution_ids":["https://openalex.org/I4210132884"]},{"raw_affiliation_string":"The Barcelona Institute of Science and Technology, Carrer del Comte d'Urgell 187, 08036 Barcelona, Spain","institution_ids":["https://openalex.org/I4210132884"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5017696252"],"corresponding_institution_ids":["https://openalex.org/I4210132884","https://openalex.org/I4210147769","https://openalex.org/I71999127"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":5.8906,"has_fulltext":true,"cited_by_count":43,"citation_normalized_percentile":{"value":0.96144736,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":"13","issue":"9","first_page":"1757","last_page":"1757"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12321","display_name":"Insect Pheromone Research and Control","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1109","display_name":"Insect 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"}},"topics":[{"id":"https://openalex.org/T12321","display_name":"Insect Pheromone Research and Control","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1109","display_name":"Insect 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/T11821","display_name":"Odor and Emission Control Technologies","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/1508","display_name":"Process Chemistry and Technology"},"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/T12120","display_name":"Air Quality Monitoring and Forecasting","score":0.9940000176429749,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/drone","display_name":"Drone","score":0.7596792578697205},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.7479427456855774},{"id":"https://openalex.org/keywords/wastewater","display_name":"Wastewater","score":0.4791561961174011},{"id":"https://openalex.org/keywords/greenhouse-gas","display_name":"Greenhouse gas","score":0.46930578351020813},{"id":"https://openalex.org/keywords/sewage-treatment","display_name":"Sewage treatment","score":0.4299647808074951},{"id":"https://openalex.org/keywords/environmental-engineering","display_name":"Environmental engineering","score":0.4078218340873718},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.07982039451599121}],"concepts":[{"id":"https://openalex.org/C59519942","wikidata":"https://www.wikidata.org/wiki/Q650665","display_name":"Drone","level":2,"score":0.7596792578697205},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7479427456855774},{"id":"https://openalex.org/C94061648","wikidata":"https://www.wikidata.org/wiki/Q336191","display_name":"Wastewater","level":2,"score":0.4791561961174011},{"id":"https://openalex.org/C47737302","wikidata":"https://www.wikidata.org/wiki/Q167336","display_name":"Greenhouse gas","level":2,"score":0.46930578351020813},{"id":"https://openalex.org/C57442070","wikidata":"https://www.wikidata.org/wiki/Q221275","display_name":"Sewage treatment","level":2,"score":0.4299647808074951},{"id":"https://openalex.org/C87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","level":1,"score":0.4078218340873718},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.07982039451599121},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/rs13091757","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13091757","pdf_url":"https://www.mdpi.com/2072-4292/13/9/1757/pdf?version=1620351901","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:diposit.ub.edu:2445/176931","is_oa":true,"landing_page_url":"http://hdl.handle.net/2445/176931","pdf_url":null,"source":{"id":"https://openalex.org/S4306401653","display_name":"Dip\u00f2sit Digital de la Universitat de Barcelona (Universitat de Barcelona)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I71999127","host_organization_name":"Universitat de Barcelona","host_organization_lineage":["https://openalex.org/I71999127"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Articles publicats en revistes (Enginyeria Electr\u00f2nica i Biom\u00e8dica)","raw_type":"info:eu-repo/semantics/publishedVersion"},{"id":"pmh:oai:doaj.org/article:e5c1026515d74f14845d02307304e7b2","is_oa":true,"landing_page_url":"https://doaj.org/article/e5c1026515d74f14845d02307304e7b2","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 13, Iss 9, p 1757 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/13/9/1757/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs13091757","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs13091757","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13091757","pdf_url":"https://www.mdpi.com/2072-4292/13/9/1757/pdf?version=1620351901","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Clean water and sanitation","score":0.8700000047683716,"id":"https://metadata.un.org/sdg/6"}],"awards":[{"id":"https://openalex.org/G2293209160","display_name":null,"funder_award_id":"2017 SGR 172","funder_id":"https://openalex.org/F4320321505","funder_display_name":"Generalitat de Catalunya"},{"id":"https://openalex.org/G4754130158","display_name":null,"funder_award_id":"2017 SGR 1721","funder_id":"https://openalex.org/F4320335162","funder_display_name":"Departament d'Universitats, Recerca i Societat de la Informaci\u00f3"},{"id":"https://openalex.org/G5658388395","display_name":null,"funder_award_id":"CERCA","funder_id":"https://openalex.org/F4320321505","funder_display_name":"Generalitat de Catalunya"},{"id":"https://openalex.org/G7355274407","display_name":null,"funder_award_id":"2017 SGR 1721","funder_id":"https://openalex.org/F4320321505","funder_display_name":"Generalitat de Catalunya"},{"id":"https://openalex.org/G8970473815","display_name":null,"funder_award_id":"2017 SGR","funder_id":"https://openalex.org/F4320321505","funder_display_name":"Generalitat de Catalunya"}],"funders":[{"id":"https://openalex.org/F4320315803","display_name":"Centres de Recerca de Catalunya","ror":null},{"id":"https://openalex.org/F4320321505","display_name":"Generalitat de Catalunya","ror":"https://ror.org/01bg62x04"},{"id":"https://openalex.org/F4320335162","display_name":"Departament d'Universitats, Recerca i Societat de la Informaci\u00f3","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3157494057.pdf","grobid_xml":"https://content.openalex.org/works/W3157494057.grobid-xml"},"referenced_works_count":22,"referenced_works":["https://openalex.org/W1621068464","https://openalex.org/W2047802029","https://openalex.org/W2064127932","https://openalex.org/W2069168969","https://openalex.org/W2090197503","https://openalex.org/W2102488189","https://openalex.org/W2131339013","https://openalex.org/W2742892949","https://openalex.org/W2793389809","https://openalex.org/W2888261815","https://openalex.org/W2890779567","https://openalex.org/W2892641787","https://openalex.org/W2913038313","https://openalex.org/W2945996237","https://openalex.org/W2953647162","https://openalex.org/W2972981691","https://openalex.org/W2974434404","https://openalex.org/W2985275805","https://openalex.org/W2999809186","https://openalex.org/W3044263433","https://openalex.org/W3098539868","https://openalex.org/W4301000019"],"related_works":["https://openalex.org/W2739351539","https://openalex.org/W2064727257","https://openalex.org/W4224324761","https://openalex.org/W4379988150","https://openalex.org/W3111315037","https://openalex.org/W4362470469","https://openalex.org/W2392480823","https://openalex.org/W4308333929","https://openalex.org/W4388943160","https://openalex.org/W4394593659"],"abstract_inverted_index":{"Wastewater":[0],"treatment":[1],"plants":[2],"(WWTPs)":[3],"are":[4],"sources":[5],"of":[6,29,31,65,80,124,163,185],"greenhouse":[7],"gases,":[8],"hazardous":[9],"air":[10],"pollutants":[11],"and":[12,22,37,51,82],"offensive":[13],"odors.":[14],"These":[15],"emissions":[16],"can":[17,195],"have":[18],"negative":[19],"repercussions":[20],"in":[21,91,160],"around":[23],"the":[24,27,35,109,122,125,141,152,161,171,186,192],"plant,":[25],"degrading":[26],"quality":[28],"life":[30],"surrounding":[32],"neighborhoods,":[33],"damaging":[34],"environment,":[36],"reducing":[38],"employee\u2019s":[39],"overall":[40],"job":[41],"satisfaction.":[42],"Current":[43],"monitoring":[44,135],"methodologies":[45],"based":[46,99],"on":[47,100],"fixed":[48],"gas":[49,167],"detectors":[50],"sporadic":[52],"olfactometric":[53],"measurements":[54,158],"(human":[55],"panels)":[56],"do":[57],"not":[58],"allow":[59],"for":[60,87,134,151,206],"an":[61,78],"accurate":[62],"spatial":[63],"representation":[64],"such":[66,139],"emissions.":[67,155],"In":[68],"this":[69],"paper":[70],"we":[71],"use":[72],"a":[73,92,115,164,207],"small":[74],"drone":[75,110],"equipped":[76],"with":[77,118],"array":[79],"electrochemical":[81],"metal":[83],"oxide":[84],"(MOX)":[85],"sensors":[86],"mapping":[88],"odorous":[89],"gases":[90],"mid-sized":[93],"WWTP.":[94],"An":[95],"innovative":[96],"sampling":[97,113],"system":[98,194],"two":[101],"(10":[102],"m":[103],"long)":[104],"flexible":[105],"tubes":[106],"hanging":[107],"from":[108,114,121],"allowed":[111],"near-source":[112],"safe":[116],"distance":[117],"negligible":[119],"influence":[120],"downwash":[123],"drone\u2019s":[126],"propellers.":[127],"The":[128,156],"proposed":[129,193],"platform":[130],"is":[131,204],"very":[132],"convenient":[133],"hard-to-reach":[136],"emission":[137,173,202],"sources,":[138],"as":[140],"plant\u2019s":[142],"deodorization":[143],"chimney,":[144],"which":[145,201],"turned":[146],"out":[147],"to":[148,199],"be":[149,197],"responsible":[150,205],"strongest":[153],"odor":[154],"geo-localized":[157],"visualized":[159],"form":[162],"two-dimensional":[165],"(2D)":[166],"concentration":[168],"map":[169],"revealed":[170],"main":[172],"hotspots":[174],"where":[175],"abatement":[176],"solutions":[177],"were":[178],"needed.":[179],"A":[180],"principal":[181],"component":[182],"analysis":[183],"(PCA)":[184],"multivariate":[187],"sensor":[188],"signals":[189],"suggests":[190],"that":[191],"also":[196],"used":[198],"trace":[200],"source":[203],"certain":[208],"measurement.":[209]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":12},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":2}],"updated_date":"2026-04-18T07:56:08.524223","created_date":"2025-10-10T00:00:00"}