An experimental study was conducted to investigate fluctuating lifts on a square-section and a equilateral triangle-section cylinder when it was subjected to air/water two-phase crossflow.

This paper presents the experimental investigations into the fluctuating lift acting on a circular cylinder when it is subjected to air/ water two phase cross flow.

It is found that the fluctuating lift coefficient reduces with increase of void fraction and Reynolds number.

Methods Five patients with anomalous origin of one pulmonary artery from the ascending aorta were treated with surgical repair from March 1993 to August 2001 Four cases were right pulmonary artery from ascending aorta(RPA-AAO) and patent ductus arterious.

Material and Methods: The overloaded heart failure models of Wistar rat with ascending aorta banding were made and to prepare the isolated cardiac myocytes and the samples of SEM of cytoskeleton with Triton x 100 were prepared.

Although EVR is one of the most important methods to treat aortic aneurysm and dissection, up to now, it is not an available method to reconstruct the aortic arch to cure the affections in ascending aorta and aortic arch.

In this paper,it is suggested that the activities of melt include: inducing shear zones or fault by changing the model of crustal stress;affecting the deformation of orogenic belts by accommodating large displacement between massifs;inducing the rapid pulse uplift of orogenic belts or extensional collapse.