Based on finite-difference time-domain(FDTD) method,the wave propagation and localization in two-dimensional defect-containing piezoelectric phononic crystals a
According to the disadvantages of traditional mechanical gyro inertial measurement unit(’IMU’) for steering system not being available for missile attitude co
This paper proposes a novel clamping device for leveling equipment mounted on offshore oil platform jacket,which solves the problem of leveling equipment clampi