高斯脉冲的峰值频率。把各阶导函数的ESD作为α的函数，确定其峰值频率的数值。-Gaussian pulse of peak frequency. The derivative function of the ESD as a function of α, determine the frequency of its peak value.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001114s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.074735s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000962s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000906s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003144s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000807s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001088s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 211898 [ RunTime:0.011883s ]
