Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2345863917', 'doi': None, 'title': 'High Speed PLL Frequency Synthesizer by the Reference Frequency Control Method', 'display_name': 'High Speed PLL Frequency Synthesizer by the Reference Frequency Control Method', 'publication_year': 1999, 'publication_date': '1999-10-28', 'ids': {'openalex': 'https://openalex.org/W2345863917', 'mag': '2345863917'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'http://ci.nii.ac.jp/naid/110003318390', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764844976', 'display_name': 'Technical report of IEICE. ICD', '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': 'journal'}, '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/A5101047752', 'display_name': 'Yasuaki Sumi', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Yasuaki Sumi', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5089649971', 'display_name': 'Hidekazu Ishii', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Hidekazu Ishii', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5029282928', 'display_name': 'Shigeki Obote', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Shigeki Obote', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5018573049', 'display_name': 'Naoki Kitai', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Naoki Kitai', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5103709050', 'display_name': 'Yutaka Fukui', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Yutaka Fukui', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5100897518', 'display_name': 'Yoshio Itoh', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Yoshio Itoh', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 56}, 'biblio': {'volume': '99', 'issue': '398', 'first_page': '1', 'last_page': '7'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11429', 'display_name': 'Semiconductor Lasers and Optical Devices', 'score': 0.918, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic 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/T11429', 'display_name': 'Semiconductor Lasers and Optical Devices', 'score': 0.918, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic 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/pll-multibit', 'display_name': 'PLL multibit', 'score': 0.65713954}], 'concepts': [{'id': 'https://openalex.org/C12707504', 'wikidata': 'https://www.wikidata.org/wiki/Q52637', 'display_name': 'Phase-locked loop', 'level': 3, 'score': 0.8502284}, {'id': 'https://openalex.org/C182099602', 'wikidata': 'https://www.wikidata.org/wiki/Q2660678', 'display_name': 'Frequency synthesizer', 'level': 4, 'score': 0.77497494}, {'id': 'https://openalex.org/C77881186', 'wikidata': 'https://www.wikidata.org/wiki/Q7119642', 'display_name': 'PLL multibit', 'level': 4, 'score': 0.65713954}, {'id': 'https://openalex.org/C25915539', 'wikidata': 'https://www.wikidata.org/wiki/Q220786', 'display_name': 'Automatic frequency control', 'level': 2, 'score': 0.47306168}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.4145785}, {'id': 'https://openalex.org/C47446073', 'wikidata': 'https://www.wikidata.org/wiki/Q5165890', 'display_name': 'Control theory (sociology)', 'level': 3, 'score': 0.32563615}, {'id': 'https://openalex.org/C2775924081', 'wikidata': 'https://www.wikidata.org/wiki/Q55608371', 'display_name': 'Control (management)', 'level': 2, 'score': 0.31135675}, {'id': 'https://openalex.org/C134652429', 'wikidata': 'https://www.wikidata.org/wiki/Q1052698', 'display_name': 'Jitter', 'level': 2, 'score': 0.114237845}, {'id': 'https://openalex.org/C76155785', 'wikidata': 'https://www.wikidata.org/wiki/Q418', 'display_name': 'Telecommunications', 'level': 1, 'score': 0.110812634}, {'id': 'https://openalex.org/C154945302', 'wikidata': 'https://www.wikidata.org/wiki/Q11660', 'display_name': 'Artificial intelligence', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'http://ci.nii.ac.jp/naid/110003318390', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764844976', 'display_name': 'Technical report of IEICE. ICD', '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': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Affordable and clean energy', 'score': 0.59, 'id': 'https://metadata.un.org/sdg/7'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W645961113', 'https://openalex.org/W610005407', 'https://openalex.org/W385200339', 'https://openalex.org/W3145870900', 'https://openalex.org/W3143711510', 'https://openalex.org/W2948508422', 'https://openalex.org/W2934170323', 'https://openalex.org/W2924880650', 'https://openalex.org/W2886676512', 'https://openalex.org/W2862937977', 'https://openalex.org/W2844169839', 'https://openalex.org/W2820516596', 'https://openalex.org/W2816887089', 'https://openalex.org/W2785642899', 'https://openalex.org/W2753386931', 'https://openalex.org/W2561762822', 'https://openalex.org/W2371350995', 'https://openalex.org/W2232508203', 'https://openalex.org/W2078452748', 'https://openalex.org/W1852649466'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2345863917', 'counts_by_year': [], 'updated_date': '2024-12-07T20:54:53.395012', 'created_date': '2016-06-24'}