黑道凶日研究

STUDY ON THE HEIDAO INAUSPICIOUS DAY

本文提出的优势期和优势值是灾害年内出现机会最多的日期和强度，其中优势期就是黑道凶日。统计表明，黑道凶日位于节气日和节气之间的黄金分割日及其附近，在时空分布上具有许多特点。

The dominating date and dominating value put forward by this paper are the date and intensity that disaster has the most chance to occur in a year,and the dominating date is the heidao inauspicious day.The statistics demonstrates that the heidao inauspicious day is at and near the solar term day and golden section day between the solar terms and has many special features in time and space distribution.