基于神经网络的电离层F2层临界频率预测方法
基于神经网络的电离层F2层临界频率预测方法-Based on neural network of ionospheric layer F2 critical frequency forecasting methods based on neural network of ionospheric layer F2 critical frequency forecasting methods
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.017011s ]
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:0.093558s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001181s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001173s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000927s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003529s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000884s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004040s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014965s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001192s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 248396 [ RunTime:0.015201s ]
