We present a design method for calculating and optimizing sound absorption coefficient of multi-layered porous fibrous metals(PFM) in the low frequency range. P
To change flight direction, flying animals modulate aerodynamic force either relative to their bodies to generate torque about the center of mass, or relative t
The stability of partly liquid filled spacecraft with flexible attachment was investigated in this paper.Liquid sloshing dynamics was simplified as the spring–
Reinstallation of mobile jack-up rigs next to existing footprints is a problematic operation because the spudcan located near the footprints is subjected to ecc
The effect of piezoelectricity on phonon properties and thermal conductivity of gallium nitride(Ga N)nanofilms is theoretically investigated. The elasticity mod