TY - SER AU - Hwang, G. J AU - Cheng, K.C. TI - Finite Amplitude Convection with Longitudinal Vortices in Plane Poiseuille Flow-The Effect of Uni for m Axial Temperature Gradient KW - Finite Amplitude Convection KW - Longitudinal Vortex Rolls KW - Steady Hydrodynamically ER -