Cited half-life什么意思

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August undefined, 2024

WebA higher or lower cited half-life does not imply any particular value for a journal. For instance, a primary research journal might have a longer cited half-life than a journal that provides rapid communication of current information. Cited half-life figures may be useful to assist in collection management and archiving decisions. WebJun 10, 2014 · 被引半衰期 (Cited Half-life)，显示一份期刊从当前年度向前推算引用数占截止当前年度被引用期刊的总引用数50% 的年数，是测度期刊老化速度的一种指标。. 半衰期通常不是针对个别文献或某一组文献，而是指某一学科或专业领域的文献总和而言的。.

A Closer Look at Cited and Citing Half-Lives - Clarivate

WebSep 2, 2024 · SCI刊物还分为影响因子高区（大于1.105)、中区 (在1.105和0.422之间）和低区（小于0.422)3类。. 衡量期刊特性的，除了影响因子外，还有及时指数（Immediacy Index)和被引用半衰期（Cited Half Life)。. 及时指数是指一种期刊当年发表的文献在当年被引用的次数与当年的 ... WebNov 25, 2024 · 云尔SCI. 被引用半衰期（cited halflife）. 是计算某一期刊所登的论文平均经过多长时间，仍然还会被引用。. 计算的方法是从当年往前累计，当年被引用的论文篇数达到全部的50%时，该篇论文的出版年到当年的间隔年数即为此期刊的被引用半衰期。. 半衰期的 … cracked polished blackstone brick stairs

half-life中文_half-life是什么意思 - 爱查查

WebMay 11, 2024 · Cited Half-Life is a good measure if you are interested in looking at a journal and finding out if older or newer material is receiving attention. Conversely, … Web1. The principle of sensor digital sum calculated technology is discussed,and the application of digital sum calculated technology in steel works of Shijiazhuang Iron … WebApr 29, 2015 · By definition, half of the articles in a journal will be older than the cited half-life; the other half will be younger. The concept of half-life can also be applied to article downloads. For the entire dataset of journals, the mean weighted cited half-life was 6.5 years, which grew at a rate of 0.13 years per annum. cracked podcast money in television

[1504.07479] Cited Half-Life of the Journal Literature - arXiv.org

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http://cmte.ieee.org/tpwrd/wp-content/uploads/sites/107/2024/09/Definition.pdf Web被引用半衰期 (Cited Half-life) 是确定被引用期刊的年龄基准，表征的是一份期刊从当前年度向前推算引用数占截止当前年度被引用期刊的总引用数50%的年数。. 简单说就是指期刊达到50%被引用率所需要的时间，这个指标可以衡量期刊老化速度快慢的程度。. 被引 ... diverging stacked bar charts excelWebWhat is Cited Half-life. 1. A measure developed by the Institute for Scientific Information (ISI) of the number of publication years from the current year which account for 50% of … diverging trajectory

"WebJun 30, 2024 · 30 June 2024. Clarivate has released the 2024 update to its annual Web of Science Journal Citation Reports (JCR). The annual JCR release enables the research community to evaluate the world’s high-quality academic journals using a range of indicators, descriptive data and visualisations. The reports are used by academic … " - Cited half-life什么意思

Cited half-life什么意思

Webget a life 好好享受生活，过有意义的生活. get a life 可不是“得到一条命”，这里的 life 指的是生活。. 如果外国人觉得朋友的生活太无趣了，过的没意义，就会说 get a life ，劝他们跳出一成不变的生活，找点有意思、有意义的事情去做，这样才是真正在享受生活 ... WebDec 18, 2013 · Measuring usage half-life–the median age of articles downloaded from a publisher’s website–just 3% of journals had half-lives shorter than 12 months. Nearly 17% of all journals had usage half-lives exceeding six years. While journal usage half-lives were typically shorter for journals in the Health Sciences (median half-life: 25-36 months ...

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http://tul.blog.ntu.edu.tw/archives/2692 WebJul 7, 2016 · SCI (Science Citation Index)是ISI（Institute Scientific Information）做的数据库，其特点为：. 1.SCI不是出版商，只是数据库，不是具体某篇文章内容版权的拥有者；所以在SCI里面，能看到只是题目+摘要+参考文献；. 2.SCI自己有一个自己确定的期刊列表，SCI只是从出版商处抓取 ...

WebJan 6, 2024 · This metric is based on the articles published by a journal over 5 calendar years. h is the largest number of articles that have each been cited h times. A journal with an h5-index of 43 has published, within a 5-year period, 43 articles that each have 43 or more citations. Journal Cited Half-Life WebJan 27, 2016 · 6. Without further ado. 这句在YouTube视频里经常听到，那些YouTubers在视频开头往往先介绍这个视频是干什么的，再顺便扯几句近期生活，然后在切入正题之前，有时会用这么一句"Without further ado, let's get started."这句话的意思就类似于“废话少说，让我们开始吧。. ”. Ado ...

WebWhat is Cited Half-life. 1. A measure developed by the Institute for Scientific Information (ISI) of the number of publication years from the current year which account for 50% of the current citations received by a journal (Reitz, 2004). Learn more in: Citation Based Indicators in Evaluation of Quality and Performance of Research and Researchers. WebOct 18, 2024 · Cited half-life와 Citing half-life 지수가 더 정확한 값으로 계산되었습니다. JCR DATA는 Cited half-life DATA 값을 최대 10년까지 표기하고 있으며, 10년 이전의 DATA의 경우에는 “>10.0”으로 표기하였습니다. 이번 업데이트를 …

WebFeb 17, 2024 · For example, in JCR 2001 the journal Crystal Research and Technology has a cited half-life of 7.0. That means that articles published in Crystal Research and Technology between 1995-2001 (inclusive) account for 50% of all citations to articles from that journal in 2001. Only journals cited 100 or more times in the JCR year have a cited …

Web1.519. 0.924. Impact factors are generally calculated based on a three-year period. For example, the 2024 impact factor for a journal would be calculated as follows: 2024 Impact Factor = A / B. where A = number of times articles published in 2024-2024 were cited during 2024 and B = number of articles published in 2024-2024. diver helmet illustrationWebIt has a half-life of about 41/2 billion years . 它的半衰期大约为45亿年。 The half-life of francium is 22 minutes . 钫的半衰期是22分钟。 Evolutionists have recently learned that … diver hector badoWeb被引用半衰期 (Cited Half-life)，确定被引用期刊的年龄基准，显示一份期刊从当前年度向前推算引用数占截止当前年度被引用期刊的总引用数50%的年数。这一数字有助于图书馆确定期刊采购和期刊馆藏的策略。 diverging stacked bar chart template