Research on water flooding effect improved by vectorial well arrangement for reservoirs with permeability heterogeneity in plane;

Random Directive Vector Dimension Chain and Its Application in Machine Tool Design and Manufacture;

To solve the problems associated with Direct Torque Control(DTC) of Permanent Magnet Synchronous Mo-tor(PMSM) using conventional voltage space vectors,such as high current,flux and torque ripple,a novel DTC strategy based on voltage space vectors and stator flux linkage sectors subdivision is proposed.

This paper presents a novel speed-sensorless direct torque control method based on vectors subdivision,analyses and compares the performance of traditional six-voltage vector control and twelve-voltage vector s,finally provides the experimental results of the system implementation using dsPIC30F6010.

Calculation of Lamb wave in acoustic emission and application in monitoring impact from space debris;

Study on damage imaging for composite structure using Lamb wave;

Effects of slot defects on Lamb wave;

Design and realization of an Bi-Mode electromagnetic acoustic transducer inspection system with SH-plate waves and Lamb waves;

Dispersion analysis of Lamb waves with narrow frequency bands;

Application of improved HHT in multi-mode Lamb wavestest for laminated composite material

This paper investigates the analysis of ultrasonic Lamb wave in non-destructive testing (NDT) field and the application of time-frequency method in on-line damage monitoring of smart composite structures.