With the data of daily precipitation and daily evaporation,dynamic drought index was calculated and compared with the identification standard of drought grade to qualify the severity of drought.According to the dynami...With the data of daily precipitation and daily evaporation,dynamic drought index was calculated and compared with the identification standard of drought grade to qualify the severity of drought.According to the dynamic drought index,a regional drought identifying system was developed for the watershed between the reach of the Yangtze River and Huaihe River in Anhui Province by using VC++ working platform and Access database.This drought identifying system would be very useful to forecast and early warn the happening of drought in this area.展开更多
[目的/意义]将无偏指标引入评价体系对某一研究领域的核心作者进行准确识别。本文构建了一个研究领域规范化的引文影响力指标,提出了综合多指标的核心作者识别方法。[方法/过程]本研究基于Web of Science数据库,以某一研究领域的学术论...[目的/意义]将无偏指标引入评价体系对某一研究领域的核心作者进行准确识别。本文构建了一个研究领域规范化的引文影响力指标,提出了综合多指标的核心作者识别方法。[方法/过程]本研究基于Web of Science数据库,以某一研究领域的学术论文为数据基础,利用普赖斯定律确定核心作者候选人,综合发文量、被引频次、h指数以及研究领域规范化后的引文影响力4个指标,利用综合指数法和熵值法确定每位学者的最后得分,将高于100分的学者确定为该研究领域内的核心作者。[结果/结论]最后,利用上述方法在DNA计算领域进行了应用分析,按照综合得分k>100的标准遴选出DNA计算领域的32位核心作者。展开更多
基金Supported by Special Fund for Public Welfare Meteorology Industry (GYHY201106029)
文摘With the data of daily precipitation and daily evaporation,dynamic drought index was calculated and compared with the identification standard of drought grade to qualify the severity of drought.According to the dynamic drought index,a regional drought identifying system was developed for the watershed between the reach of the Yangtze River and Huaihe River in Anhui Province by using VC++ working platform and Access database.This drought identifying system would be very useful to forecast and early warn the happening of drought in this area.
文摘[目的/意义]将无偏指标引入评价体系对某一研究领域的核心作者进行准确识别。本文构建了一个研究领域规范化的引文影响力指标,提出了综合多指标的核心作者识别方法。[方法/过程]本研究基于Web of Science数据库,以某一研究领域的学术论文为数据基础,利用普赖斯定律确定核心作者候选人,综合发文量、被引频次、h指数以及研究领域规范化后的引文影响力4个指标,利用综合指数法和熵值法确定每位学者的最后得分,将高于100分的学者确定为该研究领域内的核心作者。[结果/结论]最后,利用上述方法在DNA计算领域进行了应用分析,按照综合得分k>100的标准遴选出DNA计算领域的32位核心作者。
