{"id":"https://openalex.org/W2011901016","doi":"https://doi.org/10.1121/1.380964","title":"Nonspherical acoustic lens study","display_name":"Nonspherical acoustic lens study","publication_year":1976,"publication_date":"1976-05-01","ids":{"openalex":"https://openalex.org/W2011901016","doi":"https://doi.org/10.1121/1.380964","mag":"2011901016"},"language":"en","primary_location":{"id":"doi:10.1121/1.380964","doi":"https://doi.org/10.1121/1.380964","is_oa":false,"landing_page_url":"https://doi.org/10.1121/1.380964","pdf_url":null,"source":{"id":"https://openalex.org/S11296630","display_name":"The Journal of the Acoustical Society of America","issn_l":"0001-4966","issn":["0001-4966","1520-8524","1520-9024"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","ccf-b","cwts-core","dongbi-b","erih-plus","jufo-3","ki-jl-1","medline","norway-2","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320226","host_organization_name":"Acoustical Society of America","host_organization_lineage":["https://openalex.org/P4310320226"],"host_organization_lineage_names":["Acoustical Society of America"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of the Acoustical Society of America","raw_type":"journal-article"},"volume":null,"type":"article","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/A5109838913","display_name":"Kevin T. Corbett","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I17626003","display_name":"University of Rhode Island","ror":"https://ror.org/013ckk937","country_code":"US","type":"education","lineage":["https://openalex.org/I17626003"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kevin T. Corbett","raw_affiliation_strings":["University of Rhode Island, Kingston, Rhode Island 02881"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Rhode Island, Kingston, Rhode Island 02881","institution_ids":["https://openalex.org/I17626003"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029323703","display_name":"F. H. Middleton","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I17626003","display_name":"University of Rhode Island","ror":"https://ror.org/013ckk937","country_code":"US","type":"education","lineage":["https://openalex.org/I17626003"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"F. H. Middleton","raw_affiliation_strings":["University of Rhode Island, Kingston, Rhode Island 02881"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Rhode Island, Kingston, Rhode Island 02881","institution_ids":["https://openalex.org/I17626003"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109922463","display_name":"Robert L. Sternberg","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I17626003","display_name":"University of Rhode Island","ror":"https://ror.org/013ckk937","country_code":"US","type":"education","lineage":["https://openalex.org/I17626003"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. L. Sternberg","raw_affiliation_strings":["University of Rhode Island, Kingston, Rhode Island 02881"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Rhode Island, Kingston, Rhode Island 02881","institution_ids":["https://openalex.org/I17626003"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I17626003"],"apc_list":null,"apc_paid":null,"fwci":0.5798,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.65759208,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"59","issue":"5","first_page":"1104","last_page":"1109"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10822","display_name":"Acoustic Wave Phenomena Research","score":0.48969998955726624,"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"}},"topics":[{"id":"https://openalex.org/T10822","display_name":"Acoustic Wave Phenomena Research","score":0.48969998955726624,"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/T11698","display_name":"Underwater Acoustics Research","score":0.15639999508857727,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10662","display_name":"Ultrasonics and Acoustic Wave Propagation","score":0.1462000012397766,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/vacuum-casting","display_name":"vacuum casting","score":0.7120000123977661},{"id":"https://openalex.org/keywords/beam-pattern","display_name":"beam pattern","score":0.7590000033378601},{"id":"https://openalex.org/keywords/sidelobe-level","display_name":"sidelobe level","score":0.6700000166893005},{"id":"https://openalex.org/keywords/f-number","display_name":"f-number","score":0.5019999742507935},{"id":"https://openalex.org/keywords/lens-manufacturing","display_name":"lens fabrication","score":0.3779999911785126}],"concepts":[{"id":"https://openalex.org/C15336307","wikidata":"https://www.wikidata.org/wiki/Q1766051","display_name":"Lens (geology)","level":2,"score":0.8107845783233643},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.718975305557251},{"id":"https://openalex.org/C166923610","wikidata":"https://www.wikidata.org/wiki/Q6673925","display_name":"Main lobe","level":3,"score":0.6734043955802917},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5682419538497925},{"id":"https://openalex.org/C181856588","wikidata":"https://www.wikidata.org/wiki/Q2040092","display_name":"Side lobe","level":3,"score":0.5665504932403564},{"id":"https://openalex.org/C82552819","wikidata":"https://www.wikidata.org/wiki/Q193540","display_name":"Focal length","level":3,"score":0.5079842209815979},{"id":"https://openalex.org/C136525101","wikidata":"https://www.wikidata.org/wiki/Q5428139","display_name":"Fabrication","level":3,"score":0.5073091387748718},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.46956467628479004},{"id":"https://openalex.org/C555745239","wikidata":"https://www.wikidata.org/wiki/Q133220","display_name":"Sonar","level":2,"score":0.4599669575691223},{"id":"https://openalex.org/C98083399","wikidata":"https://www.wikidata.org/wiki/Q3246517","display_name":"Underwater","level":2,"score":0.45036813616752625},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.44294026494026184},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.24255624413490295},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.18672236800193787},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1369362771511078},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0915224552154541},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.07729291915893555},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","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/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1121/1.380964","doi":"https://doi.org/10.1121/1.380964","is_oa":false,"landing_page_url":"https://doi.org/10.1121/1.380964","pdf_url":null,"source":{"id":"https://openalex.org/S11296630","display_name":"The Journal of the Acoustical Society of America","issn_l":"0001-4966","issn":["0001-4966","1520-8524","1520-9024"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","ccf-b","cwts-core","dongbi-b","erih-plus","jufo-3","ki-jl-1","medline","norway-2","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320226","host_organization_name":"Acoustical Society of America","host_organization_lineage":["https://openalex.org/P4310320226"],"host_organization_lineage_names":["Acoustical Society of America"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of the Acoustical Society of America","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2003315429","https://openalex.org/W2566206726","https://openalex.org/W2022421835","https://openalex.org/W2067196751","https://openalex.org/W2168206604","https://openalex.org/W2369582889","https://openalex.org/W1627848635","https://openalex.org/W2168882958","https://openalex.org/W2065489603","https://openalex.org/W1975968463"],"abstract_inverted_index":{"A":[0],"successful":[1],"short":[2],"focal":[3],"length":[4],"radar":[5],"lens":[6,19,51,79,126,142,182],"design":[7,74],"technique":[8],"was":[9,25,75,143,183],"adapted":[10],"to":[11,132,160],"the":[12,28,49,53,58,63,69,88,93,95,125,136,141,146,164,181],"problem":[13],"of":[14,37,48,55,117,124,140,180],"nonspherical":[15],"thin":[16],"underwater":[17],"acoustic":[18,115],"development":[20],"and":[21,62,65,81,110,153,169],"construction.":[22],"The":[23,43,73,120,138,177],"motivation":[24],"furnished":[26],"by":[27],"many":[29],"sonar":[30],"requirements":[31],"for":[32,92],"small":[33],"size":[34,80],"lenses":[35,96],"capable":[36],"operation":[38],"in":[39,102,127],"a":[40,46,78],"scanning":[41,122],"mode.":[42],"paper":[44],"includes":[45],"discussion":[47],"computer-aided":[50],"design,":[52],"fabrication":[54],"casting":[56,60],"molds,":[57],"vacuum":[59,104],"process,":[61],"pattern":[64],"gain":[66,139],"measurements":[67],"on":[68],"final":[70],"rubber":[71],"lenses.":[72],"accomplished":[76],"using":[77,113],"frequency":[82,116],"that":[83],"would":[84],"be":[85,133],"compatible":[86],"with":[87],"test":[89],"tank":[90],"available":[91],"work.":[94],"constructed":[97],"were":[98,111,157,172],"about":[99,151,184],"7":[100],"in.":[101],"diameter,":[103],"cast":[105],"from":[106,135,158],"3120":[107],"RTV":[108],"rubber,":[109],"tested":[112],"an":[114],"185":[118],"KHz.":[119],"useful":[121],"range":[123],"these":[128],"tests":[129],"turned":[130],"out":[131],"\u00b120\u00b0":[134],"axis.":[137],"20":[144],"dB,":[145],"main":[147,165],"lobe":[148],"beam":[149],"width":[150],"4\u00b0,":[152],"ths":[154],"side":[155],"lobes":[156],"12":[159],"19":[161],"dB":[162],"below":[163],"lobe.":[166],"Total":[167],"absorption":[168],"reflection":[170],"losses":[171],"less":[173],"than":[174],"1":[175],"dB.":[176],"F":[178],"number":[179],"1.3.":[185],"Subject":[186],"Classification:":[187],"[43]30.80,":[188],"[43]30.82,":[189],"[43]30.25.":[190]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2016-06-24T00:00:00"}
