弱弱的问下5-Yearsci impact factorr是什么意思

弱弱的问下,PNMLGB什么意思!?_李毅吧_百度贴吧
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弱弱的问下,PNMLGB什么意思!?
弱弱的问下,PNMLGB什么意思!?
缺牙要及时修复,揭秘种植牙如何做到几十年不掉?
啪尼玛勒个比
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意思是彩色狗,掉户口!全家雅蠛蝶
胖妞没来过白带
飘过狗的有关句子
游戏特效培训,毕业年薪20w,来CGWANG吧!
飘过那个、
飘飘飘 刷屏 。
飘你麻辣隔壁
骂飘过狗的(飘 你 麻 了 个 币)
贴吧热议榜
使用签名档&&
保存至快速回贴Journal Citation Reports Help
Journal Citation Reports
The journal Impact Factor is the average number of times articles from the
journal published in the past two years have been cited in the JCR year.
The Impact Factor is calculated by dividing the number of citations in the
by the total number of articles
published in the two previous years. An Impact Factor of 1.0 means that, on
average, the articles published one or two year ago have been cited one time.
An Impact Factor of 2.5 means that, on average, the articles published one or
two year ago have been cited two and a half times. The citing works may be articles published in the same journal. However, most citing works are from different journals, proceedings, or books indexed by Web of Science.
The 5-year journal Impact Factor is the average number of times articles from the journal published in the past five years have been cited in the JCR year. It is caclulated by dividing the number of citations in the JCR year by the total number of articles published in the five previous years.
The 5-year Impact Factor is available only in JCR 2007 and subsequent years. You may calculate the 5-year Impact Factor using an earlier JCR year as a starting point by following these .
The aggregate Impact Factor for a subject category is calculated the same way
as the Impact Factor for a journal, but it takes into account the number of citations
to all journals in the category and the number of articles from all journals in
the category. An aggregate Impact Factor of 1.0 means that that, on average,
the articles in the subject category published one or two years ago have been
cited one time. The median Impact Factor is the median value of all journal
Impact Factors in the subject category.
The Impact Factor mitigates the importance of absolute citation frequencies.
It tends to discount the advantage of large journals over small journals because
large journals produce a larger body of citable literature. For the same reason,
it tends to discount the advantage of frequently issued journals over less frequently
issued ones and of older journals over newer ones. Because the journal impact
factor offsets the advantages of size and age, it is a valuable tool for journal
evaluation.
The Impact Factor Trend Graph shows the Impact Factor for a five-year period.
To view the graph, click the Impact Factor Trend button at the top of the
Journal page.
The Impact Factor Box Plot depicts the distribution of
Impact Factors for all journals in the category.查看: 4935|回复: 10||
贡献0 点铁甲币188 枚操作设备大宇DH60V,小松200-6,神刚120-3,小松60-1QQ柴油661 升在线时间50 小时主题帖子精华0阅读权限30注册时间UID70566
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TA的每日心情开心签到天数: 2 天[LV.1]初来乍到操作设备大宇DH60V,小松200-6,神刚120-3,小松60-1铁甲币188 枚精华0柴油661 升帖子
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11:41 编辑
我对这些不了解,是菜鸟一个,希望大家给我解释下,
该会员没有填写今日想说内容.
贡献0 点铁甲币188 枚拥有设备卡特彼勒320DL,点击选择设备,点击选择设备操作设备石川岛QQ柴油2877 升在线时间411 小时主题帖子精华0阅读权限150注册时间UID17235
大型矿卡, 积分 2377, 距离下一级还需 2623 积分
该用户从未签到操作设备石川岛拥有设备卡特彼勒320DL,点击选择设备,点击选择设备铁甲币188 枚精华0柴油2877 升帖子
大机头就是头大,小机头就是头小
出租各种型号挖掘机
贡献1 点铁甲币188 枚拥有设备小松PC50UU-2操作设备小松PC50UU-2居住地 揭阳柴油10603 升在线时间945 小时主题帖子精华2阅读权限200注册时间UID8600
银牌矿卡, 积分 7284, 距离下一级还需 2716 积分
TA的每日心情难过签到天数: 22 天[LV.4]偶尔看看III操作设备小松PC50UU-2居住地 揭阳拥有设备小松PC50UU-2铁甲币188 枚精华2柴油10603 升帖子
烧油多就叫大机头·········
该会员没有填写今日想说内容.
贡献0 点铁甲币188 枚拥有设备三一200,pc200;,神钢SK210LC-8-domesticQQ居住地 衡阳柴油1824 升在线时间329 小时主题帖子精华0阅读权限100注册时间UID30176
摊铺机, 积分 1747, 距离下一级还需 253 积分
TA的每日心情开心签到天数: 16 天[LV.4]偶尔看看III居住地 衡阳拥有设备三一200,pc200;,神钢SK210LC-8-domestic铁甲币188 枚精华0柴油1824 升帖子
PC200-6有6D95和6D102发动机
我不[img][url][b
贡献0 点铁甲币188 枚操作设备大宇DH60V,小松200-6,神刚120-3,小松60-1QQ柴油661 升在线时间50 小时主题帖子精华0阅读权限30注册时间UID70566
推土机, 积分 346, 距离下一级还需 154 积分
TA的每日心情开心签到天数: 2 天[LV.1]初来乍到操作设备大宇DH60V,小松200-6,神刚120-3,小松60-1铁甲币188 枚精华0柴油661 升帖子
此楼为楼主
& & 我之前就开200-6的,你说的两者有啥区别
该会员没有填写今日想说内容.
贡献0 点铁甲币188 枚拥有设备三一200,pc200;,神钢SK210LC-8-domesticQQ居住地 衡阳柴油1824 升在线时间329 小时主题帖子精华0阅读权限100注册时间UID30176
摊铺机, 积分 1747, 距离下一级还需 253 积分
TA的每日心情开心签到天数: 16 天[LV.4]偶尔看看III居住地 衡阳拥有设备三一200,pc200;,神钢SK210LC-8-domestic铁甲币188 枚精华0柴油1824 升帖子
缸径95毫米和102毫米
我不[img][url][b
贡献0 点铁甲币188 枚QQ柴油797 升在线时间92 小时主题帖子精华0阅读权限50注册时间UID15704
挖掘机, 积分 568, 距离下一级还需 432 积分
该用户从未签到铁甲币188 枚精华0柴油797 升帖子
一体缸盖是小机头,六个分开的是大机头,不知道是这样吗?
一挖一麻袋,一挖还是一麻袋。
贡献0 点铁甲币188 枚QQ居住地 盐城柴油455 升在线时间93 小时主题帖子精华0阅读权限50注册时间UID64248
挖掘机, 积分 578, 距离下一级还需 422 积分
TA的每日心情开心签到天数: 2 天[LV.1]初来乍到居住地 盐城铁甲币188 枚精华0柴油455 升帖子
不知道学习
贡献14 点铁甲币188 枚拥有设备柳工225C操作设备柳工225CQQ居住地 乐山柴油11887 升在线时间950 小时主题帖子精华14阅读权限200注册时间UID20229
银牌矿卡, 积分 6524, 距离下一级还需 3476 积分
TA的每日心情开心签到天数: 1 天[LV.1]初来乍到操作设备柳工225C居住地 乐山拥有设备柳工225C铁甲币188 枚精华14柴油11887 升帖子
我也不知道
贡献0 点铁甲币188 枚柴油98 升在线时间58 小时主题帖子精华0阅读权限30注册时间UID189150
推土机, 积分 292, 距离下一级还需 208 积分
TA的每日心情开心签到天数: 14 天[LV.3]偶尔看看II铁甲币188 枚精华0柴油98 升帖子
小松里面康明斯发动机的叫大机头,小松自己的发动机叫小机头,
晋升为银牌矿卡用户组
自己的设备上带有铁甲车贴
2012优秀会员
2012年度评选出的铁甲论坛优秀会员
2012上海宝马展
2012上海宝马展
2011优秀会员
2011年度评选出的铁甲论坛优秀会员
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