As an attempt, the Kalman filter was used to study the anomalous variations of ionospheric Total Electron Content(TEC) before and after Wenchuan Ms8.0 earthquak
Nothofagus is regarded as a key group for interpreting Southern Pacific biogeographical history.Based on a molecular phylogenetic tree, a quantitative dispersal
Objective To test a modified otologic drill under different drilling conditions for its ability toidentify drilling faults and stop drilling.MethodsBased on for