{"id":"https://openalex.org/W3025880922","doi":null,"title":"Hardware development and performance testing of an acoustical positioning device","display_name":"Hardware development and performance testing of an acoustical positioning device","publication_year":1976,"publication_date":"1976-09-01","ids":{"openalex":"https://openalex.org/W3025880922","mag":"3025880922"},"language":"en","primary_location":{"id":"mag:3025880922","doi":null,"is_oa":false,"landing_page_url":"https://ui.adsabs.harvard.edu/abs/1976ESASP.114..333L/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S4306509711","display_name":"ESASP","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"ESASP","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5109238356","display_name":"Ernst G\u00fcnter Lierke","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"E. G. Lierke","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5109238356"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.73134328,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"114","issue":null,"first_page":"333","last_page":"339"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.5692999958992004,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.5692999958992004,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T12449","display_name":"Spacecraft Design and Technology","score":0.18379999697208405,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T14214","display_name":"Space Exploration and Technology","score":0.045499999076128006,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/hardware-development","display_name":"hardware development","score":0.9330000281333923},{"id":"https://openalex.org/keywords/performance-testing","display_name":"performance testing","score":0.8989999890327454},{"id":"https://openalex.org/keywords/underwater-localization","display_name":"underwater localization","score":0.5260000228881836}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.522917628288269},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.38238152861595154}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:3025880922","doi":null,"is_oa":false,"landing_page_url":"https://ui.adsabs.harvard.edu/abs/1976ESASP.114..333L/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S4306509711","display_name":"ESASP","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"ESASP","raw_type":null}],"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/W4236533376","https://openalex.org/W2311765411","https://openalex.org/W2745995877","https://openalex.org/W4255984206","https://openalex.org/W4256668180","https://openalex.org/W2103312289","https://openalex.org/W4236081564","https://openalex.org/W4252397322","https://openalex.org/W7054812142","https://openalex.org/W4238007910"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2020-05-21T00:00:00"}
