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根据科学文献集聚与离散规律．认为核心期刊质量指标Ｚ主要取决于两个因素；一是核心期刊累积信息百分率ａ，二是在统计范围内核心期刊占所有被引用、被摘录期刊总数的百分率ｂ·Ｚ与ａ成正比，与ｂ成反比．即．Ｚ值越大则核心期刊质量越高．据此，对１０个实例核心期刊质量进行了分析．
According to scientific literature clustering and discrete rules. Considering that the quality index Z of core journals mainly depends on two factors: one is the percentage of accumulated information in core journals a and the other is the percentage of core journals in the statistical range which are quoted. The percentage b · Z of extracted journals is proportional to a and b is inversely proportional. which is. The higher the Z value, the higher the quality of core journals. Accordingly, the quality of 10 core journals is analyzed.