Early-warning signals for impending regime shifts are highly desirable,because it is often difficult to revert a system ......

Hemodynamic low-frequency (~0.1 Hz) spontaneous oscillations as detected in the brain by nearinfrared spectroscopy have ......

针对地震资料处理中存在的时差、相位差问题,提出了一种时差、相位差自动识别校正方法。该方法以希尔伯特变换和相对熵算法为理论......