The overall bending of circular ring shells subjected to bending moments and lateral forces is discussed. The derivation of the equations was based upon the the
The steady oil production and pressure distribution formulae of vertically fractured well for power-law non-Newtonian fluid were derived on the basis of the ell
Bifurcations of subharmonic solutions of order m of a planar periodic perturbed system near a hyperbolic limit cycle are discussed. By using a Poincare map and