Publication Information

{'id': 'https://openalex.org/W2018733613', 'doi': 'https://doi.org/10.2514/6.1999-3288', 'title': 'On the velocity gradient tensor and fluid feature extraction', 'display_name': 'On the velocity gradient tensor and fluid feature extraction', 'publication_year': 1999, 'publication_date': '1999-08-22', 'ids': {'openalex': 'https://openalex.org/W2018733613', 'doi': 'https://doi.org/10.2514/6.1999-3288', 'mag': '2018733613'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.2514/6.1999-3288', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306497257', 'display_name': '14th Computational Fluid Dynamics Conference', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'conference'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'proceedings-article', 'indexed_in': ['crossref'], '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/A5056647443', 'display_name': 'Robert Haimes', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I63966007', 'display_name': 'Massachusetts Institute of Technology', 'ror': 'https://ror.org/042nb2s44', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I63966007']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Robert Haimes', 'raw_affiliation_strings': ['MIT, Cambridge, Ma.#TAB#'], 'affiliations': [{'raw_affiliation_string': 'MIT, Cambridge, Ma.#TAB#', 'institution_ids': ['https://openalex.org/I63966007']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5074943736', 'display_name': 'David Kenwright', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1280536761', 'display_name': 'Ames Research Center', 'ror': 'https://ror.org/02acart68', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1280536761', 'https://openalex.org/I4210124779']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'David Kenwright', 'raw_affiliation_strings': ['NASA, Ames Research Center, Moffett Field, CA'], 'affiliations': [{'raw_affiliation_string': 'NASA, Ames Research Center, Moffett Field, CA', 'institution_ids': ['https://openalex.org/I1280536761']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 5.035, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 94, 'citation_normalized_percentile': {'value': 0.988943, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 95, 'max': 96}, 'biblio': {'volume': None, 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10360', 'display_name': 'Fluid Dynamics and Turbulent Flows', 'score': 0.9995, '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'}}, 'topics': [{'id': 'https://openalex.org/T10360', 'display_name': 'Fluid Dynamics and Turbulent Flows', 'score': 0.9995, '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/T11254', 'display_name': 'Fluid Dynamics and Vibration Analysis', 'score': 0.9918, '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/T10173', 'display_name': 'Computational Fluid Dynamics and Aerodynamics', 'score': 0.9886, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/structure-tensor', 'display_name': 'Structure tensor', 'score': 0.4111125}], 'concepts': [{'id': 'https://openalex.org/C155281189', 'wikidata': 'https://www.wikidata.org/wiki/Q3518150', 'display_name': 'Tensor (intrinsic definition)', 'level': 2, 'score': 0.6158083}, {'id': 'https://openalex.org/C52622490', 'wikidata': 'https://www.wikidata.org/wiki/Q1026626', 'display_name': 'Feature extraction', 'level': 2, 'score': 0.55267316}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.46919295}, {'id': 'https://openalex.org/C4725764', 'wikidata': 'https://www.wikidata.org/wiki/Q844704', 'display_name': 'Extraction (chemistry)', 'level': 2, 'score': 0.46224713}, {'id': 'https://openalex.org/C113315163', 'wikidata': 'https://www.wikidata.org/wiki/Q7625159', 'display_name': 'Structure tensor', 'level': 3, 'score': 0.4111125}, {'id': 'https://openalex.org/C154945302', 'wikidata': 'https://www.wikidata.org/wiki/Q11660', 'display_name': 'Artificial intelligence', 'level': 1, 'score': 0.37750304}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.32742044}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.24379575}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.19875416}, {'id': 'https://openalex.org/C43617362', 'wikidata': 'https://www.wikidata.org/wiki/Q170050', 'display_name': 'Chromatography', 'level': 1, 'score': 0.14846373}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.14321554}, {'id': 'https://openalex.org/C115961682', 'wikidata': 'https://www.wikidata.org/wiki/Q860623', 'display_name': 'Image (mathematics)', 'level': 2, 'score': 0.10354322}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.2514/6.1999-3288', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306497257', 'display_name': '14th Computational Fluid Dynamics Conference', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'conference'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 22, 'referenced_works': ['https://openalex.org/W1976638764', 'https://openalex.org/W1990122019', 'https://openalex.org/W2032687946', 'https://openalex.org/W2033528644', 'https://openalex.org/W2044574716', 'https://openalex.org/W2056363605', 'https://openalex.org/W2079380280', 'https://openalex.org/W2097556103', 'https://openalex.org/W2098819183', 'https://openalex.org/W2100350068', 'https://openalex.org/W2124120255', 'https://openalex.org/W2125638038', 'https://openalex.org/W2171904101', 'https://openalex.org/W2956819335', 'https://openalex.org/W2965892125', 'https://openalex.org/W3013911745', 'https://openalex.org/W3143189107', 'https://openalex.org/W3143721798', 'https://openalex.org/W3147583786', 'https://openalex.org/W4233285401', 'https://openalex.org/W4240558544', 'https://openalex.org/W4242926086'], 'related_works': ['https://openalex.org/W2623954137', 'https://openalex.org/W2535084101', 'https://openalex.org/W2376369230', 'https://openalex.org/W2138109609', 'https://openalex.org/W2059613462', 'https://openalex.org/W2039401989', 'https://openalex.org/W2000165426', 'https://openalex.org/W1999619734', 'https://openalex.org/W1988092434', 'https://openalex.org/W1566340526'], 'abstract_inverted_index': {'A': [0], '3-D': [1], 'Computational': [2], 'Fluid': [3], 'Dynamics': [4], 'flow': [5], 'field': [6, 88], 'may': [7], 'contain': [8], 'many': [9], 'topological': [10], 'features': [11, 31], 'such': [12], 'as': [13, 93], 'vortex': [14], 'cores,': [15], 'separation': [16], 'surfaces,': [17, 19], 'shock': [18], 'and': [20, 58, 62], 'recirculation': [21], 'bubbles.': [22], 'We': [23], 'describe': [24], 'several': [25], 'techniques': [26, 50], 'that': [27, 36], 'identify': [28], 'these': [29, 78], 'global': [30], 'using': [32], 'local': [33], 'analytical': [34], 'tests': [35], 'can': [37, 90], 'applied': [38], 'independently': [39], 'to': [40, 79], 'any': [41], 'point': [42, 56], 'or': [43], 'cell': [44], 'in': [45], 'a': [46], 'vector': [47], 'field.': [48], 'These': [49], 'draw': [51], 'on': [52], 'concepts': [53], 'from': [54], 'critical': [55], 'theory': [57], 'phase': [59], 'plane': [60, 82], 'analysis': [61], 'utilize': [63], 'the': [64, 80, 84, 94], 'velocity': [65], 'gradient': [66], 'tensor.': [67], 'For': [68], 'this': [69], '3x3': [70], 'tensor': [71], 'an': [72], 'eigen-analysis': [73], 'produces': [74, 83], '3': [75], 'eigenvalues.': [76], 'Mapping': [77], 'complex': [81], 'classification': [85], 'signature.': [86], 'Vector': [87], 'topology': [89], 'be': [91], 'used': [92], 'foundation': [95], 'of': [96], 'automated': [97], 'fluid': [98], 'feature': [99], 'extraction.': [100]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2018733613', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 7}, {'year': 2019, 'cited_by_count': 4}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 6}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 3}, {'year': 2013, 'cited_by_count': 7}, {'year': 2012, 'cited_by_count': 4}], 'updated_date': '2024-12-13T20:45:45.038714', 'created_date': '2016-06-24'}