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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 | Coexisting tubular adenoma with a neuroendocrine carcinoma of colon allowing early surgical intervention and implicating a shared stem cell origin显示文摘High-grade colonic neuroendocrine carcinomas (NECs) are uncommon but extremely aggressive. Their co-existence with tubular adenoma (TA) has rarely been reported. We present a 68-year-old man who was found on routine colonoscopy to have multiple colorectal TAs and an ulcerated lesion in the ascending colon. Microscopically, a poorly-differentiated invasive carcinoma juxtaposed with a TA was identified. Differential diagnosis included a poorly-differentiated adenocarcinoma, medullary carcinoma, high-grade NEC and lymphoma. The immunohistochemical profile showed positive staining for keratins, synaptophysin and chromogranin but negative for LCA, CDX2, CK7, CK20, TTF-1 and PSA, supporting the NEC diagnosis. Upon subsequent laparoscopic right hemicolectomy, the tumor was identified as a 3.0 cm umbilicated and ulcerated mass with an adjacent TA. Both TA and NEC showed positive staining for β-catenin indicating a shared colonic origin. The mitotic counts (77/10 high power fields) and a high proliferation rate (75% by Ki-67) corroborated a high-grade stratification. Mutational analysis indicated a wild-type BRAF and KRAS with mismatch repair proficiency. The AJCC(7th edition) pathologic stage is p T3, p N0, p Mx. The patient received adjuvant chemotherapy with cisplatin/etoposides for three cycles and will be followed up for a year to detect recurrence. In conclusion, the co-existence of TA with high grade-NEC in our case allowed early identificationand intervention of the otherwise asymptomatic but aggressive tumor. In addition, the finding of a highgrade NEC within a large TA in this case suggests a link between the two lesions and could represent a shared stem cell origin. | Mahmoud L Soliman Ashish Tiwari Qing Zhao | 2017 | World Journal of Gastroenterology2017，23，6： | 3 |
| 3 | Perioperative risk factors associated with delayed graft function following deceased donor kidney transplantation:A retrospective,single center study显示文摘BACKGROUND There is an abundant need to increase the availability of deceased donor kidney transplantation(DDKT)to address the high incidence of kidney failure.Challenges exist in the utilization of higher risk donor organs into what appears to be increasingly complex recipients;thus the identification of modifiable risk factors associated with poor outcomes is paramount.AIM To identify risk factors associated with delayed graft function(DGF).METHODS Consecutive adults undergoing DDKT between January 2016 and July 2017 were identified with a study population of 294 patients.The primary outcome was the occurrence of DGF.RESULTS The incidence of DGF was 27%.Under logistic regression,eight independent risk factors for DGF were identified including recipient body mass index≥30 kg/m^(2),baseline mean arterial pressure<110 mmHg,intraoperative phenylephrine administration,cold storage time≥16 h,donation after cardiac death,donor history of coronary artery disease,donor terminal creatinine≥1.9 mg/dL,and a hypothermic machine perfusion(HMP)pump resistance≥0.23 mmHg/mL/min.CONCLUSION We delineate the association between DGF and recipient characteristics of preinduction mean arterial pressure below 110 mmHg,metabolic syndrome,donorspecific risk factors,HMP pump parameters,and intraoperative use of phenylephrine. | Nicholas V Mendez Yehuda Raveh Joshua J Livingstone Gaetano Ciancio Giselle Guerra George W Burke III Vadim B Shatz Fouad G Souki Linda J Chen Mahmoud Morsi Jose M Figueiro Tony M Ibrahim Werviston L DeFaria Ramona Nicolau-Raducu | 2021 | World Journal of Transplantation2021，11，4： | 2 |
| 4 | Guaranteed cost control of uncertain discrete systems with delays显示文摘 | Magdi S Mahmoud and Xie L H | 2000 | International Journal of Control2000，73，2： | 2 |
| 5 | Production of high protein quality noodles using wheat flour fortified with different protein products from lupine显示文摘 | MAHMOUD E A M NASSEF S L AMANY BASUNY M M | 2012 | Annals of Agricultural Science2012，57，2： | 1 |
| 6 | Binuclear versus mononuclear copper complexes as catalysts for asymmetric cyclo-propanation of styrene显示文摘 | Cai L S Mahmoud H Han Y | 1999 | Tetrahedron:Asymmetry1999，10，3： | 1 |
| 7 | EQCM Monitoring of Charge Transport Processes in Polyaniline Films Doped with 12-Silicomolybdic Heteropolyanion 显示文摘 | Keita B Mahmoud A Nadjo L | 1995 | J Electroanal Chem1995，386，： | 1 |
| 8 | Design of fuzzy logic control system incorporating human expert knowledge for combine harvester显示文摘 | Mahmoud O Majid L Hossein M Reza A | 2010 | Expert Systems with Applications2010，，37： | 1 |
| 9 | Detection of acidithiobacillus ferrooxidans in acid mine drainage environments using fluorescent in situ hybridization (FISH)显示文摘 | Mahmoud K K Leduc L G Ferroni G D | 2005 | Journal of Microbiological Methods2005，61，1： | 1 |
| 10 | Observer-based positive real control of uncertain linear systems显示文摘 | Mahmoud M S Soh Y C Xie L H | 1999 | Automatica1999，35，4： | 1 |
| 11 | A comparison of dexme- detomidine with propofol for magnetic resonance imaging sleep studies in children 显示文摘 | Mahmoud M Gunter J Donnelly L | 2009 | Anesth Analg2009，109，7： | 1 |
| 12 | MicroRNA-214 protects the mouse heart from ischemic injury by controlling Ca2+ overload and cell death显示文摘 | Aurora A B Mahmoud A l Luo X Johnson B A van Rooij E Matsuzaki S | 2012 | J Clin Invest2012，122，： | 1 |
| 13 | A study of dermatophytoses in Sana' a, Yemen Republic显示文摘 | Mahmoud A L E | 2002 | Mycoses2002，45，34： | 1 |
| 14 | Observer-based positive real control for uncertain linear systems显示文摘 | Mahmoud M S Soh Y C Xie L H | 1995 | Automatica1995，35，4： | 1 |
| 15 | Enzymatic hydrolysis of casein:effect of degree of hydrolysis on antigenicity and physical properties显示文摘 | Mahmoud M L Malone W I Cordle C T | 1992 | J Food Science1992，57，5： | 1 |
| 16 | Control of seismically excited cable-stayed bridge using resetting semiactive stiffness dampers 显示文摘 | He W L Agrawal A K Mahmoud K | 2001 | Journal of Bridge Engineering2001，6，6： | 1 |
| 17 | Guaranteed cost control of uncertain discrete systems with delay 显示文摘 | Mahmoud M S Xie L H | 2000 | Int J of Control2000，73，2： | 1 |
| 18 | Robust kalman filtering for discrete state-delay systems显示文摘 | Mahmoud M S Xie L Soh Y C | 2000 | IEE Proc Control Theory Appication2000，147，6： | 1 |
| 19 | Equilibrium modeling and kinetic studies on the adsorption of basic dye by a low-cost adsorbent: Coconut (Cocos nucifera) bunch waste 显示文摘 | HAMEED B H MAHMOUD D K AHMAD A L | 2008 | Journal of Hazardous Materials2008，158，： | 1 |
| 20 | Detection of acidithiobacillus ferrooxidans in acid mine drainage environments using fluorescent in situ hybridization(FISH)显示文摘 | Mahmoud K K Leduc L G Ferroni G D | 2005 | J Microbiol Methods2005，61，1： | 1 |
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