Considering the condition that modern spacecraft are always of large flexible appendages and the fact that the flexible vibration often degrades the control system performance,this paper employs a method that consists of a feedforward compensator and a feedback control loop to fulfill attitude maneuver rapidly with little residual vibration.

Time delay filter is a new method to reduce residual vibration of flexible system.

A new technique for deriving high robust time delay filter using zero placement was proposed in discrete time domain to reduce residual vibration in an uncertain system.

Input shaping technology is widely used to reduce residual vibrations of flexible systems.

Many simulations show that input shapers designed with the new method can reduce the expected level of residual vibration.

A new method-Complex Number algorithm is presented in this paper,which shows the pulses of input shaper with the complex numbers according to the residual vibration of system,and turns the operation of input shaper into mathematical operation,deriving out the expression formulae of ZV and ZVD input shapers, and analyzes their response speed and robustness.

Studies on the applying of special seed coat agent to cotton and the residue dynamics of Furadan;

Establishment of Extraction and Detection and the Residue Dynamics of Nitrobenzene in Soil;

Study on residue dynamics of carbendazim in Vanilla planifolia Andrew and soil

Study on residual dynamics of triadimefon in litchi and soil;

Study on residual dynamics and safety assessment of triazole fungicides in banana;

Residual Dynamics in Rape and Photolysis of Clopyralid;