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The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
Ultrasonics is a bimonthly peer-reviewed scientific journal published by Elsevier and covering research on theory and application of ultrasonics in physics, biology, chemistry, medicine, underwater acoustics, industry, materials characterization, control, and other disciplines.
Journal ranking is widely used in academic circles in the evaluation of an academic journal's impact and quality. Journal rankings are intended to reflect the place of a journal within its field, the relative difficulty of being published in that journal, and the prestige associated with it.
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
It was founded in 1954 under the name Transactions of the IRE Professional Group on Ultrasonic Engineering. The journal covers the fundamental research and technical advances in ultrasonics, ferroelectrics, piezoelectrics and frequency control. Its editor-in-chief is Alfred C. H. Yu (University of Toronto). [1]
Journal of Manufacturing and Materials Processing: 2017 2504-4494 Journal of Marine Science and Engineering: 2013 2077-1312 Journal of Molecular Pathology: 2020 2673-5261 Journal of Nanotheranostics: 2020 2624-845X Journal of Nuclear Engineering: 2020 2673-4362 Journal of Open Innovation: Technology, Market, and Complexity: Economics 2015 2199-8531
While these journals still did not receive an impact factor until the next year, they did contribute citations to the calculation of other journals' impact factors. [ 4 ] [ 5 ] In July 2022, Clarivate announced that journals in the ESCI obtain an impact factor effective from JCR Year 2022 first released in June 2023.
The values for Nature journals lie well above the expected ca. 1:1 linear dependence because those journals contain a significant fraction of editorials. CiteScore was designed to compete with the two-year JCR impact factor, which is currently the most widely used journal metric. [7] [8] Their main differences are as follows: [9]