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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 | 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 |
| 3 | Proportional fuzzy feed-forward architecture control validation by wind tunnel tests of a morphing wing显示文摘In aircraft wing design,engineers aim to provide the best possible aerodynamic performance under cruise flight conditions in terms of lift-to-drag ratio.Conventional control surfaces such as flaps,ailerons,variable wing sweep and spoilers are used to trim the aircraft for other flight conditions.The appearance of the morphing wing concept launched a new challenge in the area of overall wing and aircraft performance improvement during different flight segments by locally altering the flow over the aircraft's wings.This paper describes the development and application of a control system for an actuation mechanism integrated in a new morphing wing structure.The controlled actuation system includes four similar miniature electromechanical actuators disposed in two parallel actuation lines.The experimental model of the morphing wing is based on a full-scale portion of an aircraft wing,which is equipped with an aileron.The upper surface of the wing is a flexible one,being closed to the wing tip;the flexible skin is made of light composite materials.The four actuators are controlled in unison to change the flexible upper surface to improve the flow quality on the upper surface by delaying or advancing the transition point from laminar to turbulent regime.The actuators transform the torque into vertical forces.Their bases are fixed on the wing ribs and their top link arms are attached to supporting plates fixed onto the flexible skin with screws.The actuators push or pull the flexible skin using the necessary torque until the desired vertical displacement of each actuator is achieved.The four vertical displacements of the actuators,correlated with the new shape of the wing,are provided by a database obtained through a preliminary aerodynamic optimization for specific flight conditions.The control system is designed to control the positions of the actuators in real time in order to obtain and to maintain the desired shape of the wing for a specified flight condition.The feasibility and effectiveness of the developed control system by use of a proportional fuzzy feed-forward methodology are demonstrated experimentally through bench and wind tunnel tests of the morphing wing model. | Michel Joёl Tchatchueng Kammegne Ruxandra Mihaela Botez Lucian Teodor Grigorie Mahmoud Mamou Youssef Mebarki | 2017 | Chinese Journal of Aeronautics2017，30，2： | 6 |
| 4 | 2010-2015年全球实验室网络支持的消除麻疹和风疹工作的进展显示文摘2012年,世界卫生大会(World Health Assembly)签署全球疫苗行动计划(Global Vaccine Action Plan,GVAP),该计划旨在2020年前消除世界卫生组织(World Health Qrganization,WHO)5个区域的麻疹和风疹。2013年9月,WHO 6个区域的所有国家都已确立消除麻疹的目标,其中3个区域还确立了消除风疹和先天性风疹综合征的目标. | mick n.mulders paul a.rota joseph p.icenogle kevin e.brown makoto takeda gloria j.rey myriam c.ben mamou annick r.g.a.dosseh charles r.byabamazima hinda j.ahmed sirima pattamadilok yan zhang marta gacic-dobo peter m.strebel james l.goodson 周惠嘉(翻译) | 2018 | 上海预防医学2018，30，2： | 4 |
| 5 | Mammalian target of rapamycin inhibitors are associated with lower rates of hepatocellular carcinoma recurrence after liver transplantation: a systematic review显示文摘 | Evangelos Cholongitas Chrysanthi Mamou Kryssia I. Rodríguez‐Castro Patrizia Burra | 2014 | Transpl Int2014，，10： | 2 |
| 6 | Reaction of hydroxyl radicals with polyethylene oxide in aqueous solution显示文摘 | Matheson M S Mamou A Silverman J | 1973 | The Journal of Physical Chemistry1973，77，： | 1 |
| 7 | A skinning approach for dynamic 3d mesh compression显示文摘 | MAMOU K ZAHARIA T PRETEUX F | 2007 | Comput Animat Virtual Worlds2007，17，34： | 1 |
| 8 | High-Frequency Chirp Ultrasound Imaging with an Annular Array for Ophthalmologic and Small-Animal Imaging显示文摘 | Jonathan Mamou Orlando Aristizábal Ronald H. Silverman Jeffrey A. Ketterling Daniel H. Turnbull | 2009 | Ultrasound in Medicine & Biology2009，，7： | 1 |
| 9 | Groundwater evo- lution in the continental intercalaire aquifer of southern Algeria and Tunisia:trace element and isotopic indicators 显示文摘 | Edmunds W M Guendouz A H Mamou A | 2003 | Applied Geo- chemistry2003，18，6： | 1 |
| 10 | A perspective on high-frequency ultrasound for medical applications显示文摘 | Mamou J Aristiz d ba O Silverman RH | 2010 | PhysicsProcedia2010，3，1： | 1 |
| 11 | Design and experimental testing of a control system for a morphing wing model actuated with miniature BLDC motors显示文摘The paper deals with the design and experimental validation of the actuation mechanism control system for a morphing wing model.The experimental morphable wing model manufactured in this project is a full-size scale wing tip for a real aircraft equipped with an aileron.The morphing actuation of the model is based on a mechanism with four similar in house designed and manufactured actuators,positioned inside the wing on two parallel lines.Each of the four actuators used a BrushLess Direct Current(BLDC)electric motor integrated with a mechanical part performing the conversion of the angular displacements into linear displacements.The following have been chosen as successive steps in the design of the actuator control system:(A)Mathematical and software modelling of the actuator;(B)Design of the control system architecture and tuning using Internal Model Control(IMC)methodology;(C)Numerical simulation of the controlled actuator and its testing on bench and wind tunnel.The morphing wing experimental model is tested both at the laboratory level,with no airflow,to evaluate the components integration and the whole system functioning,but also in the wind tunnel,in the presence of airflow,to evaluate its behavior and the aerodynamic gain. | Teodor Lucian GRIGORIE Shehryar KHAN Ruxandra Mihaela BOTEZ Mahmoud MAMOU Youssef MéBARKI | 2020 | Chinese Journal of Aeronautics2020，33，4： | 1 |
| 12 | Groundwater evolution in the Continental Intercalaire aquifer of southern Algeria and Tunisia: trace element and isotopic indica- tors 显示文摘 | EDMUNDS W M GUENDOUZ A H MAMOU A | 2003 | Applied Geochemistry2003，18，6： | 1 |
| 13 | Determiningthe source of nosocomial transmission in hemodialy-sis units in Tunisia by sequencing NS5B and E2 se-quences of HCV显示文摘 | Hmaied F Ben Mamou M Dubois M | 2007 | J Med Virol2007，79，： | 1 |
| 14 | Quantitative ultrasound in cancer imaging显示文摘 | Feleppa EJ Mamou J Porter CR | 2011 | Semin Oncol2011，38，1： | 1 |
| 15 | Three-dimensional quantitative ultrasound to guide pathologists towards metastatic foci in lymph nodes显示文摘 | Mamou J Saegusa-Beecroft E Coron A | 2012 | Conf Proc IEEE Eng Med Biol Soc2012，2012，： | 1 |
| 16 | Groundwater evolution in the Continental Intercalaire aquifer of southern Algeria and Tunisia:trace element and isotopic indicators显示文摘 | Guendouz A H Mamou A Moulla A Shand P Zouari K | 2003 | Applied Geochemistry2003，18，： | 1 |
| 17 | Entire-volume serial histological examination for detection of micrometastases in lymph nodes of colorectal cancers 显示文摘 | Hata M Machi J Mamou J | 2011 | Pathol Oncol Res2011，17，： | 1 |
| 18 | Chirp-coded excitation imaging with a high-frequency ultrasound annular array显示文摘 | Mamou J Riverside Res Ketterling JA | 2008 | Ultrasonics2008，55，2： | 1 |
| 19 | High-Frequency Chirp Ultrasound Imaging with an annular array for ophthalmoIogic and small-animal imaging显示文摘 | Mamou J Aristiz:ibal O Silverman RH | 2009 | Ultrasound Med Biol2009，35，7： | 1 |
| 20 | XML Repository and Active Views Demonstration 显示文摘 | Serge 'Abiteboul Vincent Aguilera Sebastien Ailleret Bernd Amann Sophie Chet Brendan Hills Frederic Hubert Jean - Claude Mamou Amelie Marian Laurent Mignet Tova Milo Cassio Souza dos Santos xruno Tessier Anne- Marie Vercoustre | 1999 | VLDB1999，，： | 1 |
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