Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2749813559', 'doi': None, 'title': 'Subsonic sphere drag measurements at intermediate Reynolds numbers', 'display_name': 'Subsonic sphere drag measurements at intermediate Reynolds numbers', 'publication_year': 1969, 'publication_date': '1969-07-01', 'ids': {'openalex': 'https://openalex.org/W2749813559', 'mag': '2749813559'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/api/citations/19690021231/downloads/19690021231.pdf', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5090227219', 'display_name': 'James A. Nicholls', 'orcid': 'https://orcid.org/0000-0002-9325-563X'}, 'institutions': [{'id': 'https://openalex.org/I4210111179', 'display_name': 'Michigan United', 'ror': 'https://ror.org/0291ys696', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I4210111179']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'J. A. Nicholls', 'raw_affiliation_strings': ['Michigan Univ. Ann Arbor, MI United States'], 'affiliations': [{'raw_affiliation_string': 'Michigan Univ. Ann Arbor, MI United States', 'institution_ids': ['https://openalex.org/I4210111179']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5073821102', 'display_name': 'Kenneth R. Sivier', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'K. R. Sivier', 'raw_affiliation_strings': [], 'affiliations': []}], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 10, 'citation_normalized_percentile': {'value': 0.573058, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 83, 'max': 84}, 'biblio': {'volume': None, 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12350', 'display_name': 'Turbulent Interactions with Dispersed Particles and Droplets', 'score': 0.9947, '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/T12350', 'display_name': 'Turbulent Interactions with Dispersed Particles and Droplets', 'score': 0.9947, '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/T10360', 'display_name': 'Turbulent Flows and Vortex Dynamics', 'score': 0.9921, 'subfield': {'id': 'https://openalex.org/subfields/2206', 'display_name': 'Computational Mechanics'}, '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/T12081', 'display_name': 'Aerodynamics of High-Speed Trains and Vehicles', 'score': 0.9767, '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/drag-equation', 'display_name': 'Drag equation', 'score': 0.66782475}, {'id': 'https://openalex.org/keywords/reynolds-number-scaling', 'display_name': 'Reynolds Number Scaling', 'score': 0.63338}, {'id': 'https://openalex.org/keywords/drag-reduction', 'display_name': 'Drag Reduction', 'score': 0.615681}, {'id': 'https://openalex.org/keywords/hydrodynamic-turbulence', 'display_name': 'Hydrodynamic Turbulence', 'score': 0.54188}, {'id': 'https://openalex.org/keywords/inertial-particles', 'display_name': 'Inertial Particles', 'score': 0.52972}, {'id': 'https://openalex.org/keywords/large-eddy-simulation', 'display_name': 'Large-Eddy Simulation', 'score': 0.52559}, {'id': 'https://openalex.org/keywords/wave-drag', 'display_name': 'Wave drag', 'score': 0.44498822}], 'concepts': [{'id': 'https://openalex.org/C72921944', 'wikidata': 'https://www.wikidata.org/wiki/Q206621', 'display_name': 'Drag', 'level': 2, 'score': 0.7820914}, {'id': 'https://openalex.org/C182748727', 'wikidata': 'https://www.wikidata.org/wiki/Q178932', 'display_name': 'Reynolds number', 'level': 3, 'score': 0.7775624}, {'id': 'https://openalex.org/C107568529', 'wikidata': 'https://www.wikidata.org/wiki/Q9300786', 'display_name': 'Drag equation', 'level': 5, 'score': 0.66782475}, {'id': 'https://openalex.org/C72117827', 'wikidata': 'https://www.wikidata.org/wiki/Q1778961', 'display_name': 'Drag coefficient', 'level': 3, 'score': 0.5676731}, {'id': 'https://openalex.org/C57879066', 'wikidata': 'https://www.wikidata.org/wiki/Q41217', 'display_name': 'Mechanics', 'level': 1, 'score': 0.5036685}, {'id': 'https://openalex.org/C190895693', 'wikidata': 'https://www.wikidata.org/wiki/Q7975302', 'display_name': 'Wave drag', 'level': 4, 'score': 0.44498822}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.41972947}, {'id': 'https://openalex.org/C120338312', 'wikidata': 'https://www.wikidata.org/wiki/Q5304818', 'display_name': 'Drag divergence Mach number', 'level': 4, 'score': 0.385921}, {'id': 'https://openalex.org/C153294291', 'wikidata': 'https://www.wikidata.org/wiki/Q25261', 'display_name': 'Meteorology', 'level': 1, 'score': 0.32986528}, {'id': 'https://openalex.org/C196558001', 'wikidata': 'https://www.wikidata.org/wiki/Q190132', 'display_name': 'Turbulence', 'level': 2, 'score': 0.1823942}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/api/citations/19690021231/downloads/19690021231.pdf', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.43, 'id': 'https://metadata.un.org/sdg/13', 'display_name': 'Climate action'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W856280919', 'https://openalex.org/W842417756', 'https://openalex.org/W796682872', 'https://openalex.org/W362209310', 'https://openalex.org/W345951897', 'https://openalex.org/W3089183408', 'https://openalex.org/W2521409576', 'https://openalex.org/W2295750489', 'https://openalex.org/W2181855227', 'https://openalex.org/W215607766', 'https://openalex.org/W2103862315', 'https://openalex.org/W2090968961', 'https://openalex.org/W2062029899', 'https://openalex.org/W1993791979', 'https://openalex.org/W1992876130', 'https://openalex.org/W1975394912', 'https://openalex.org/W1596030805', 'https://openalex.org/W1554152558', 'https://openalex.org/W1494774473', 'https://openalex.org/W1487989655'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2749813559', 'counts_by_year': [{'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-09-11T21:08:11.729069', 'created_date': '2017-08-31'}