{"id":"https://openalex.org/W623333357","doi":"https://doi.org/10.1201/b16631-53","title":"Overview of Data Centers Energy Efficiency Evolution","display_name":"Overview of Data Centers Energy Efficiency Evolution","publication_year":2011,"publication_date":"2011-01-01","ids":{"openalex":"https://openalex.org/W623333357","doi":"https://doi.org/10.1201/b16631-53","mag":"623333357"},"language":"en","primary_location":{"id":"mag:623333357","is_oa":false,"landing_page_url":"http://kth.diva-portal.org/smash/record.jsf?pid=diva2:481690","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"type":"article","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/A5027003862","display_name":"S. Lennart Johnsson","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"S. Lennart Johnsson","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5027003862"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7589,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.81453259,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"983","last_page":"1028"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9902999997138977,"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/computer-science","display_name":"Computer science","score":0.46829548478126526}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46829548478126526}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:623333357","is_oa":false,"landing_page_url":"http://kth.diva-portal.org/smash/record.jsf?pid=diva2:481690","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8899999856948853,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W38800468","https://openalex.org/W1494187440","https://openalex.org/W1967138129","https://openalex.org/W1985358918","https://openalex.org/W1987367825","https://openalex.org/W1999101084","https://openalex.org/W1999280617","https://openalex.org/W2002401904","https://openalex.org/W2007648666","https://openalex.org/W2022325078","https://openalex.org/W2047263658","https://openalex.org/W2060204338","https://openalex.org/W2096062109","https://openalex.org/W2112181056","https://openalex.org/W2118955868","https://openalex.org/W2134807578","https://openalex.org/W2144546330","https://openalex.org/W2146638694","https://openalex.org/W2154212251","https://openalex.org/W2160165792","https://openalex.org/W2171935755","https://openalex.org/W2800905263","https://openalex.org/W3203992401"],"related_works":["https://openalex.org/W1577164063","https://openalex.org/W1590802493","https://openalex.org/W289312537","https://openalex.org/W1590020271","https://openalex.org/W208885265","https://openalex.org/W32385821","https://openalex.org/W1521139320","https://openalex.org/W2528797319","https://openalex.org/W3099749812","https://openalex.org/W1563588644","https://openalex.org/W2531220550","https://openalex.org/W1565833649","https://openalex.org/W1590773558","https://openalex.org/W115385261","https://openalex.org/W1539189700","https://openalex.org/W1993739778","https://openalex.org/W342677887"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}