Deposition of sediment inside the conduit structures reduces the flow cross section area and increases the flow roughness which causes reduction of flow discharge passing through the conduit. Among the methods which can prevent sediment deposition is non sedimentation condition in the structure, Since the critical section of the inverted siphon in sedimentation is the outlet. In the begining of...

Inverted siphon is a kind of cross-channel building, in order to study the stress distribution law buried prestressed inverted structure. The force and deformation characteristics Xinanpu are analysed by finite element software. In establishment calculation model, arrangement reinforcement setting pier considered. A separate model used simulate effect applying initial strain, boundary condition...

This paper studies Karman vortex shedding and water-level fluctuation in the inverted siphon structure of Middle Route South-to-North Water Diversion Project (MR-SNWDP) China. Field investigations numerical simulations for outlet were performed to explore characteristics hazards vortex. Numerical results compared with measured data verify effectiveness reliability model. Based on model, it is f...

This paper uses nonlinear regression, Artificial Neural Network (ANN) and Genetic Programming (GP) approaches for predicting an important tangible issue i.e. scours dimensions downstream of inverted siphon structures. Dimensional analysis and nonlinear regression-based equations was proposed for estimation of maximum scour depth, location of the scour hole, location and height of the dune downs...

Ascidians have powerful capacities for regeneration but the underlying mechanisms are poorly understood. Here we examine oral siphon regeneration in the solitary ascidian Ciona intestinalis. Following amputation, the oral siphon rapidly reforms oral pigment organs (OPO) at its distal margin prior to slower regeneration of proximal siphon parts. The early stages of oral siphon reformation includ...