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| 1 | 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 |
| 2 | 苄基异喹啉化合物Mollinedine的抗实验性心律失常作用显示文摘Mollinedine(Moll)5mg/kg,iv可显著提高恒速iv哇巴因诱发豚鼠心律失常的用量;显著降低大鼠iv CaCl2的死亡率;预防氯仿引起小鼠心室纤颤的发生;对抗大鼠心肌缺血复灌引起的心律失常;但对iv乌头碱诱发大鼠心律失常的作用无效。小鼠恒速iv Moll随剂量增加,心电图PR间期、QRS明显延长。Moll 5mg/kg iv能降低麻醉大鼠的收缩压、舒张压,左心室压、左室压的变化速率。降压与抑制心肌收缩力作用时间较短,很快可恢复到给药前水平。由此说明,Moll具有抗实验性心律失常作用。 | 胡国胜 钱家庆 Jose A. Lpez Youssef Aly Lan K.Wong Paul L.Schiff Jr | 1990 | 同济医科大学学报1990，19，1： | 2 |
| 3 | Active learning of deep surrogates for PDEs:application to metasurface design显示文摘Surrogate models for partial differential equations are widely used in the design of metamaterials to rapidly evaluate the behavior of composable components.However,the training cost of accurate surrogates by machine learning can rapidly increase with the number of variables.For photonic-device models,we find that this training becomes especially challenging as design regions grow larger than the optical wavelength.We present an active-learning algorithm that reduces the number of simulations required by more than an order of magnitude for an NN surrogate model of optical-surface components compared to uniform random samples.Results show that the surrogate evaluation is over two orders of magnitude faster than a direct solve,and we demonstrate how this can be exploited to accelerate large-scale engineering optimization. | Raphaël Pestourie Youssef Mroueh Thanh V.Nguyen Payel Das Steven G.Johnson | 2020 | npj Computational Materials2020，，1： | 2 |
| 4 | Simulated polarimetric signatures of primitive geometrical shapes显示文摘 | Cameron W L Youssef N N Leung L K | 1996 | IEEE Trans Geosci Remote Sens1996，34，3： | 1 |
| 5 | Hashash,Nonlinear Ground-Response Analysis of Turkey Flat Shallow Stiff-soil Site to Strong Ground Motion显示文摘 | Annie 0 L Kwok Jonathan P Stewart Youssef M A | 2008 | Bulletin ot' the Seis- mological Society of America February2008，98，： | 1 |
| 6 | Effect of simultane-ous down-regulation of pectate lyase and endo-(3-l,4-glucanasegenes on strawberry fruit softening显示文摘 | YOUSSEF S M IRAIDA A L^PEZ-ARANDA J M’ RAFAELS VICTORIANO V GIORGIO C ROSARIO B-P FERNAN-DO P-A OUESADA M A MERCADO J A | 2013 | Molecular Breeding2013，31，： | 1 |
| 7 | Incidence and Diversity of Nestyphodium Fungal Endophytes in Tall Fescue from Morocco, Tunisia, and Sardinia显示文摘 | Clement S L Elberson L R Youssef N N | 2001 | Crop Science2001，41，： | 1 |
| 8 | Nanocrystalline AI- Mg alloy with ultrahigh strength and good ductility 显示文摘 | Youssef K M Scattergood R O Murty K L | 2006 | Scripts Materialia2006，54，2： | 1 |
| 9 | Simulated Polarimetric Signatures of Primitive Geometrical Shapes 显示文摘 | Cameron W L Youssef N N Leung L K | 1996 | IEEE Transactions on Geoscience and Remote Sensing1996，34，3： | 1 |
| 10 | 显示文摘 | Kepley CL Youssef L Andrews RP | 1999 | Allergy Clin Immunol1999，104，21： | 1 |
| 11 | Antagonistic control of disease resistance protein stability in the plant immune system 显示文摘 | HOLT III B F YOUSSEF B DANGL J L | 2005 | Science2005，309，5： | 1 |
| 12 | Evolution of missing colorectal liver metastases following inductive chemotherapy and hepatectomy 显示文摘 | Elias D Youssef O Sideris L | 2004 | J Surg 0ncol2004，86，1： | 1 |
| 13 | Integrating genetic algorithms,tabu search,and simulated annealing for the unit commitment problem显示文摘 | Mantawy A H Abdel-Magid Youssef L Selim Shokri Z | 1999 | IEEE Trans on Power Systems1999，14，3： | 1 |
| 14 | Photoinitiated cross-linking of a thiol-methacrylate system显示文摘 | LECAMP L HOULLIER F YOUSSEF B | 2001 | Polymer2001，42，： | 1 |
| 15 | Adolescent constipation: evaluation and management 显示文摘 | Youssef NN Sanders L Di Lorenzo C | 2004 | Adolesc Med Clin2004，15，1： | 1 |
| 16 | Statins as potential therapeutil agents in neuroinf cammatory disorders显示文摘 | Stwe O Youssefs S steinman L ea al | 2003 | Curr Opin Neurol2003，16，3： | 1 |
| 17 | Bionanocomposites based on poly(3-caprolactone)-grafted cellulose nanocrystals by ring-opening polymerization显示文摘 | Youssef H Anne L G~ Nancy S | 2008 | J Mater Chem2008，18，41： | 1 |
| 18 | Statins as potential therapeutic agents in neuro-inflammatory显示文摘 | Stuve O Youssef S Steinman L | 2003 | Curr Opin Neurol2003，16，3： | 1 |
| 19 | Cisplafin induced damage in kidney genomic DNA and nephrotoxicity in male rats: the protective effect of grape seed proanthocyanidin extract显示文摘 | SAAD A A YOUSSEF M I EL-SHENNAWY L K | 2009 | Food and Chemical Toxicology2009，47，7： | 1 |
| 20 | Long-term outcomes of renal tumor radio frequency ablation stratified by tumor diameter: size matters显示文摘 | BEST S L PARK S K YOUSSEF R F | 2012 | J Urol2012，187，4： | 1 |
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