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T-hour Unit Hydrograph (TUH) is widely used in simulating surface runoff process in river basins. Traditional ways, like the Least Squared (LS) method, of deriving the TUHs are prone to produce a saw-tooth TUH, because of the mistaken data, or/and simplification of the hydrological process (to be linear) of the river basin. This paper applies a so-called Goal Attainment (GA) method to obtain an optimal...
Cuions were implanted to A304 stainless steel by MEVVA ion source. After heat treatment, X-ray show that the precipitation phase is Cu3Fe4 and Cu4Fe although the phase diagram show the solid solution. The implantation process were simulated by molecular dynamic software for the diffusion paths of Cu ion. The simulation result show that: during implant process, Cu ions were implanted to stainless steel...
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