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| 1 | Optimization and design of an aircraft's morphing wing-tip demonstrator for drag reduction at low speeds, Part II- Experimental validation using Infra-Red transition measurement from Wind Tunnel tests显示文摘In the present paper, an ‘in-house' genetic algorithm was numerically and experimentally validated. The genetic algorithm was applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface morphing. The optimization was performed for 16 flight cases expressed in terms of various combinations of speeds, angles of attack and aileron deflections. The displacements resulted from the optimization were used during the wind tunnel tests of the wing tip demonstrator for the actuators control to change the upper surface shape of the wing. The results of the optimization of the flow behavior for the airfoil morphing upper-surface problem were validated with wind tunnel experimental transition results obtained with infra-red Thermography on the wing-tip demonstrator. The validation proved that the 2D numerical optimization using the ‘in-house' genetic algorithm was an appropriate tool in improving various aspects of a wing's aerodynamic performances. | Andreea Koreanschi Oliviu Sugar Gabor Joran Acotto Guillaume Brianchon Gregoire Portier Ruxandra Mihaela Botez Mahmoud Mamou Youssef Mebarki | 2017 | Chinese Journal of Aeronautics2017，30，1： | 10 |
| 2 | Bleeding Dieulafoy's-like lesions of the gut identified by capsule endoscopy显示文摘Dieulafoy's-like lesions (DLs-like) represent a cause of obscure gastrointestinal bleeding, enteroscopy being the main diagnostic and therapeutic procedure. Frequently, more than one enteroscopy is needed to identify the bleeding vessel. In our practice, video capsule endoscopy (VCE) identified and guided therapy in four cases of DLs-like; three of them were localized on the small bowel. We report, for the first time, a diagnosis of colonic DL-like performed by colon capsule endoscopy. Two patients presented with severe cardiovascular disorders, being hemodynamically unstable during VCE examination. Based on the VCE findings, only one invasive therapeutic procedure per patient was necessary to achieve hemostasis. VCE and enteroscopy may be regarded as complementary procedures in patients with gut DLs-like. | Lidia Ciobanu Oliviu Pascu Brindusa Diaconu Daniela Matei Cristina Pojoga Marcel Tantu | 2013 | World Journal of Gastroenterology2013，19，29： | 8 |
| 3 | Optimization and design of an aircraft's morphing wing-tip demonstrator for drag reduction at low speed, Part Ⅰ–Aerodynamic optimization using genetic, bee colony and gradient descent algorithms显示文摘In this paper, an ‘in-house' genetic algorithm is described and applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface morphing. The algorithm's performances were studied from the convergence point of view, in accordance with design conditions. The algorithm was compared to two other optimization methods,namely the artificial bee colony and a gradient method, for two optimization objectives, and the results of the optimizations with each of the three methods were plotted on response surfaces obtained with the Monte Carlo method, to show that they were situated in the global optimum region. The optimization results for 16 wind tunnel test cases and 2 objective functions were presented. The 16 cases used for the optimizations were included in the experimental test plan for the morphing wing-tip demonstrator, and the results obtained using the displacements given by the optimizations were evaluated. | Andreea Koreanschi Oliviu Sugar Gabor Joran Acotto Guillaume Brianchon Gregoire Portier Ruxandra Mihaela Botez Mahmoud Mamou Youssef Mebarki | 2017 | Chinese Journal of Aeronautics2017，30，1： | 8 |
| 4 | A new non-linear vortex lattice method:Applications to wing aerodynamic optimizations显示文摘This paper presents a new non-linear formulation of the classical Vortex Lattice Method(VLM) approach for calculating the aerodynamic properties of lifting surfaces. The method accounts for the effects of viscosity, and due to its low computational cost, it represents a very good tool to perform rapid and accurate wing design and optimization procedures. The mathematical model is constructed by using two-dimensional viscous analyses of the wing span-wise sections,according to strip theory, and then coupling the strip viscous forces with the forces generated by the vortex rings distributed on the wing camber surface, calculated with a fully three-dimensional vortex lifting law. The numerical results obtained with the proposed method are validated with experimental data and show good agreement in predicting both the lift and pitching moment, as well as in predicting the wing drag. The method is applied to modifying the wing of an Unmanned Aerial System to increase its aerodynamic efficiency and to calculate the drag reductions obtained by an upper surface morphing technique for an adaptable regional aircraft wing. | Oliviu Sugar Gabor Andreea Koreanschi Ruxandra Mihaela Botez | 2016 | Chinese Journal of Aeronautics2016，29，5： | 6 |
| 5 | Central migration of neuronal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | Hu ZQ Ulfendahla N Olivius NP | 2004 | Brain Research2004，1026，： | 1 |
| 6 | Central migration of neurohal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | Hu Z Ulfendahl M Olivius NP | 2004 | Brain Res2004，1026，： | 1 |
| 7 | NGF stimulates extensive neurite outgrowth from implanted dorsal root ganglion neu- rons following transplantation into the adult rat inner ear显示文摘 | Hu Z Ulfendahl M Olivius NP | 2005 | Neurobiology Of Disease2005，18，： | 1 |
| 8 | Central migration of neuronal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | Hu Z Ulfendahl M Olivius NP | | 0，，01： | 1 |
| 9 | Central migration of neuronal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | Hu ZQ Ulfendahla N Olivius NP | 2004 | Brain Research2004，1026，： | 1 |
| 10 | Ventral approach to rat inner ear preserves cochlear function显示文摘 | Qiu J Olivius P Tong B | 2007 | Acta Otolaryngol2007，127，3： | 1 |
| 11 | Survival of neuronal tissue following xenograft implantation into the adult rat inner ear 显示文摘 | Hu Z Ulfendahl M Olivius NP | 2004 | Exp Nem-ol2004，185，1： | 1 |
| 12 | Central migration of neuronal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | HU Z ULFENDAHL M OLIVIUS N P | 2004 | Brain Res2004，1026，： | 1 |
| 13 | Why do couples discontinue invitro fertilization treatment? A cohort study显示文摘 | Olivius C Friden B Borg G | 2004 | Fertil Steril2004，81，2： | 1 |
| 14 | Why do couples discontinue in vitro fertilization treatment?A cohort study显示文摘 | Olivius C Friden B Borg G | | 0，，： | 1 |
| 15 | NGF stimulates extensive neurite outgrowth from implanted dorsal root ganglion neurons following transplantation into the adult rat inner ear显示文摘 | Zhengqing Hu Mats Ulfendahl N. Petri Olivius | 2004 | Neurobiology of Disease2004，，1： | 1 |
| 16 | Fibrinoid reaction after extracapsular cataract extraction and relationship to exfoliation syndrome显示文摘 | Walinder PEK Olivius EOP Nordell SI Thorburn WE | 1989 | J Cataract Refract Surg1989，15，： | 1 |
| 17 | Central migration of neu- ronal tissue and embryonic stem ceils following transplanta- tion along the adult auditory nerve 显示文摘 | Hu Z Ulfendahl M Olivius N P | 2004 | Brain Res2004，1026，： | 1 |
| 18 | Why do couples discontinue in vitro fertilization treatment? A cohort study显示文摘 | Olivius C Friden B Borg G | 2004 | Fertil Steril2004，81，2： | 1 |
| 19 | Central migration of neuronal tissue and embryonic stem cells following transplantation along the adult auditory nerve显示文摘 | Zhengqing Hu Mats Ulfendahl N. Petri Olivius | 2004 | Brain Research2004，，1： | 1 |
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