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| 1 | 3-D NUMERICAL SIMULATION OF CONVOY-GENERATED WAVES IN A RESTRICTED WATERWAY显示文摘We consider waves generated by the passing of convoys in a restricted waterway. The magnitude of these waves depends mainly on the geometrical and kinematical parameters of the convoy, such as the speed and the hull geometry. The objective of this study is to predict the relationship between these geometrical and kinematical parameters and the amplitude of ship-generated waves as well as the water plane drawdown. Numerical simulations are conducted by solving the 3-D Navier-Stokes equations along with the standard k model for turbulent processes. The results are compared first with the empirical model and second with experimental measurements performed by the French company Compagnie National du Rh ne (CNR). | OUAHSINE Abdellatif SMAOUI Hassan SERGENT Philippe | 2012 | Journal of Hydrodynamics2012，24，3： | 9 |
| 2 | Impacts of ship movement on the sediment transport in shipping channel显示文摘The duration of ship-generated waves(wake waves) and accelerated currents can generate significant influences on the sediment transport. A 3-D numerical model is presented to estimate these effects. The hydrodynamic model is the 3-D Reynolds averaged Navier-Stokes(RANS) equations including the standard k-ε model while the 3-D convection-diffusion model is for the resuspended sediment transport. This hydro-sedimentary model is firstly validated with the trench experimental results, and then applied to the open channel with a moving ship. The computed results demonstrate that the resuspension generation mainly depends on ship speeds, barge number, and the relative distance away from ship. The acceleration effects of ship on the sediment transport are analyzed as well. | JI Sheng-cheng OUAHSINE Abdellatif SMAOUI Hassan SERGENT Philippe JING Guo-qing | 2014 | Journal of Hydrodynamics2014，26，5： | 1 |
| 3 | 3D Modeling of sediment movement by ships-generated wakes in confined shipping channel显示文摘Ship-generated waves and return currents are capable of re-suspending significant quantities of bottom and bank sediments.However,most of the previous studies done on the subject do not show how and where sediment is re-suspended by the wakes and the directions of net transport.In this paper,a 3D numerical model based on hydro-sedimentary coupling is presented to search the relationship between the sediment movement,and the pattern of ship-generated waves around and far away from the vessel and the return currents around the ships.The hydrodynamic model is based on 3D Navier-Stokes equations including the standard k-ε model for turbulence processes,and the sediment transport model is based on a 3D equation for the re-suspended sediment transport.The computation results show that the areas of sediment concentration and transport(whether by resuspension or by the bedload) depend mainly on the position,the speed of the ship in the waterways,the kinematics of ship-generated waves and on the return flows.Thus,a map of sediment distribution and the modes of sediment transport generated by the passage of the ship are presented. | Shengcheng JI Abdellatif OUAHSINE Hassan SMAOUI Philippe SERGENT | 2014 | International Journal of Sediment Research2014，29，1： | 1 |
| 4 | Helical CT in acute lower gastrointestinal bleeding显示文摘 | Olivier Ernst Philippe Bulois Sophie Saint-Drenant Christophe Leroy Jean-Claude Paris Géraldine Sergent | 2003 | European Radiology2003，，1： | 1 |
| 5 | Helical CT in acute lower gastrointestinal bleeding显示文摘 | Olivier Ernst Philippe Bulois Sophie Saint-Drenant Christophe Leroy Jean-Claude Paris Géraldine Sergent | 2003 | European Radiology2003，，1： | 1 |
| 6 | Atrial 栓塞由门静脉 embolization 引起了: 由经皮的退却和 stenting 的治疗显示文摘 Hepatectomy remains the only curative treatment for many primary and secondary liver cancers.Portal vein embolization(PVE) has been used to increase the volume of the future liver remnant and thus lower the risk of small-for-size syndrome and postoperative liver failure.This technique has proven its safety,with a low post-procedure morbidity rate.Here,we describe a very rare case in which a young patient suffered a glue embolism to the right atrial cavity following PVE in preparation for a major hepatectomy for colorectal metastasis.The foreign body was withdrawn from the heart with a femoral,percutaneous device and trapped against the wall of the femoral vein with a self-expanding metal stent.Our report shows that this previously unknown complication of PVE can be resolved without recourse to sternotomy and open heart surgery. | Ahmed Fouad Bouras Stéphanie Truant Jean-Paul Beregi Geraldine Sergent Olivier Delemazure Guido Liddo Gilles Lebuffe Philippe Zerbib Franois-René Pruvot Emmanuel Boleslawski | 2012 | World Journal of Hepatology2012，4，12： | 0 |
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