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| 1 | Systematic design method for PI controller with Virtual Resistor-based Active Damping of LCL filter显示文摘The Virtual Resistor based Active Damping(VR-AD) is widely employed in converters connected to the grid via LCL filters in order to mitigate the inherent resonance of the filters. Nevertheless, in digitally controlled systems, the PWM and the calculating delays modify the system characteristics in terms of frequency and phase, thus destabilizing the system and degrading the VR-AD performances, mainly in low switching frequencies. Moreover, the stability of the system is greatly affected under weak grid operation characterized by large grid impedance variation. This paper solves these problems by proposing a systematic, robust and optimized design procedure of voltage oriented PI control(VOC) with VRAD. The considered design procedure ensures robust control(sufficient stability margins) and high quality of grid current(reduced steady-state error and minimized THD value) despite the negative impact of digital time delay, grid impedance variation and filter parameters change. Simulation and experimental results are presented to show robustness and efficiency of the suggested design procedure. | Marwa Ben Said-Romdhane Mohmed Wissem Naouar Ilhem Slama-Belkhodja | 2018 | Global Energy Interconnection2018,1,3: | 4 |
| 2 | Association of hepatitis C virus infection and diabetes in central Tunisia显示文摘AIM:To investigate hepatitis C virus(HCV) seroprevalence in Tunisian patients with diabetes mellitus and in a control group.METHODS:A cross-sectional study was conducted to determine the HCV seroprevalence in 1269 patients with diabetes(452 male,817 female) and 1315 nondiabetic patients,attending health centers in Sousse,Tunisia.HCV screening was performed in both groups using a fourth-generation enzyme immunoassay.RESULTS:In the diabetic group,17(1.3%) were found to be HCV-infected compared with eight(0.6%) in the control group,although the difference was not significant(P=0.057).Quantitative PCR was performed in 20 patients.Eleven patients were positive and showed HCV genotype 1b in all cases.CONCLUSION:Frequency of HCV antibodies was low in patients with diabetes and in the control group in central Tunisia,with no signifi cant difference between the groups. | Naoufel Kaabia Elhem Ben Jazia Ines Slim Imen Fodha Wissem Hachfi Rafika Gaha Mabrouk Khalifa Aoutef Hadj Kilani Halim Trabelsi Ahmed Abdelaziz Fethi Bahri Amel Letaief | 2009 | World Journal of Gastroenterology2009,15,22: | 2 |
| 3 | Antioxidant and free radical-scavenging properties of three flavonoids isolated from the leaves of Rhamnus alaternus L. (Rhamnaceae) : A structure-activity relationship study显示文摘 | Rebai Ben Ammar Wissem Bhouri Mohamed Ben Sghaier Jihed Boubaker Ines Skandrani Aicha Neffati Ines Bouhlel Soumaya Kilani Anne-Marie Mariotte Leila Chekir-Ghedira Marie-Geneviève Dijoux-Franca Kamel Ghedira | 2009 | Food Chemistry2009,,1: | 2 |
| 4 | FPGA - Based Predictive Current Controller for Synchronous Machine Speed Drive 显示文摘 | Moharned Wissem Naouar | 2008 | IEEE TRANSACTIONS ON POWER ELECTRONICS2008,23,4: | 1 |
| 5 | Effect of growth stage on the content and composition of the essential oil and phenolic fraction of sweet marjoram ( Origanum majorana L.)显示文摘 | Ibtissem Hamrouni Sellami Emna Maamouri Thouraya Chahed Wissem Aidi Wannes Mohamed Elyes Kchouk Brahim Marzouk | 2009 | Industrial Crops & Products2009,,3: | 1 |
| 6 | Effectiveness of intravenous magnesium on postoperative pain after abdominal surgery versus placebo:double blind randomized controlled trial显示文摘 | Jaoua H Zghidi SM Wissem L | 2010 | Tunis Med2010,88,5: | 1 |
| 7 | Valorization of three varieties of grape显示文摘 | Moufida S T Ines O Wissem A W | 2009 | Industrial Crops and Products2009,30,: | 1 |
| 8 | Unusual Presentation of a Colonic Sarcoidosis显示文摘 | Sami Daldoul Wissem Triki Kaouther El Jeri Abdeljelil Zaouche Yasuhiko Sugawara | 2012 | Case Reports in Medicine2012,,: | 1 |
| 9 | Anti-lipid peroxidation and induction of apoptosis in the erythroleukaemic cell line K562 by extracts from (Tunisian) Rhamnus alaternus L. (Rhamnaceae)显示文摘 | RebaiBen Ammar Aicha Neffati Ines Skandrani MohamedBen Sghaier Wissem Bhouri Kamel Ghedira Leila Chekir-Ghedira | 2011 | Natural Product Research2011,,11: | 1 |
| 10 | Lipid, fatty acid and tocol distribution of coriander fruit’s different parts显示文摘 | Jazia Sriti Wissem Aidi Wannes Thierry Talou Baya Mhamdi Ghaith Hamdaoui Brahim Marzouk | 2009 | Industrial Crops & Products2009,,2: | 1 |
| 11 | Relationship correlation of antioxidant and antiproliferative capacity of Cyperus rotundus products towards K562 erythroleukemia cells显示文摘 | Soumaya Kilani-Jaziri Aicha Neffati Ilef Limem Jihed Boubaker Ines Skandrani Mohamed Ben Sghair Ines Bouhlel Wissem Bhouri Anne Marie Mariotte Kamel Ghedira Marie-Genviève Dijoux Franca Leila Chekir-Ghedira | 2009 | Chemico-Biological Interactions2009,,1: | 1 |
| 12 | Endocrine disrupting chemicals and human health risk assessment: A critical review 显示文摘 | Benoit R Wissem M Aziza I H H | 2013 | Critical Reviews in Environmental Science and Technology2013,21,4: | 1 |
| 13 | Antioxidant activities of the essential oils and methanol extracts from myrtle ( Myrtus communis var. italica L.) leaf, stem and flower显示文摘 | Wissem Aidi Wannes Baya Mhamdi Jazia Sriti Mariem Ben Jemia Olfa Ouchikh Ghaith Hamdaoui Mohamed Elyes Kchouk Brahim Marzouk | 2010 | Food and Chemical Toxicology2010,,5: | 1 |
| 14 | Valorization of three varieties of grape显示文摘 | Moufida S T Ines O Wissem A W | 2009 | Industrial Crops and Products2009,30,: | 1 |
| 15 | Perinatally discovered complete tubular colonic duplication associated with anal atresia显示文摘 | Mohamed A. Jellali Mongi Mekki Jamel Saad Ahmed Zrig Imene Elanes Walid Mnari Mezri Maatouk Wissem Harzallah Samir Toumi Imed Krichène Randa Salem Abdellatif Nouri Mondher Golli | 2012 | Journal of Pediatric Surgery2012,,6: | 1 |
| 16 | Cost-effective CMOS-compatible gratingcouplers with backside metal mirror and 69% couplingefficiency 显示文摘 | Wissem Sfar Zaoui Maria Felix Rosa Wolfgang Vo-gel | 2012 | Opt Express2012,20,26: | 1 |
| 17 | A Granger-Causality analysis between FDI and trade:An empirical comparative study显示文摘 | WISSEM A | 2002 | :942002,,: | 1 |
| 18 | TVT-O for the Treatment of Female Stress Urinary Incontinence: Results of a Prospective Study after a 3-Year Minimum Follow-Up显示文摘 | David Waltregny Yves Gaspar Olivier Reul Wissem Hamida Pierre Bonnet Jean de Leval | 2007 | European Urology2007,,2: | 1 |
| 19 | One Step Regioselective Acylation of Polyphenolic Wood Extractive and Its Application for Wood Treatment显示文摘This study evaluated the methods of grafting commercial catechin with fatty acids,namely capric acid(C10),lauric acid(C12),and myristic acid(C14)through esterification.Specimens of beech wood(Fagus sylvatica L.)were impregnated with catechin and modified catechin-fatty acids,separately,at a 5%concentration diluted in ethanol using vacuum pressure treatment and subjected to leaching.The weight percentage gain before leaching(WPG),after leaching(WPGAL),and weight loss due to leaching(PL)were investigated.Both leached and unleached samples were tested against white-rot fungi(Trametes versicolor)in Petri-dishes for twelve weeks.Results show that samples treated with modified catechin-fatty acids provide improved resistance towards leaching.Catechin-C14 was found to be more promising,possibly due to its chain length.The decay weight loss for samples treated with modified catechin-fatty acids does not differ significantly between the samples that leached and not.Despite the antifungal properties of catechin,the treatment with catechin alone was insufficient to protect wood samples from fungi.Further,it is recommended to increase the concentration level of modified catechin to obtain a significant effect on the decay resistance. | Wissem Sahmim Georges Eid Febrina Dellarose Boer Hubert Chapuis Philippe Gérardin Christine Gérardin-Charbonnier | 2022 | Journal of Renewable Materials2022,10,6: | 0 |
| 20 | Feasibility Study of the Synthesis of Isocyanate-Free Polyurethanes from Catechin显示文摘With the current trend of increasing efforts to develop non-isocyanate-based polyurethanes(NIPUs),this study aimed to check the feasibility of the development of a method using cyclic carbonate modified catechin and amine to synthesis non-isocyanate urethane with the objective to further extend these results to polyurethane synthesis.The methods used in this study consist of four steps:glycidilation of catechin,hydrolysis of epoxide,cyclic carbonate synthesis,and carbamate synthesis through condensation of butylamine.The resulting products were analyzed using FTIR(Fourier transform infrared)spectroscopy and NMR(nuclear magnetic resonance)spectroscopy.The results showed that carbamate could be successfully obtained through this four-steps synthesis,opening the possibility to further developments for the synthesis of polyurethanes starting from catechin and condensed tannins. | Wissem Sahmim Febrina Dellarose Boer Hubert Chapuis Firmin Obounou-Akong Antonio Pizzi Philippe Gérardin Christine Gérardin-Charbonnier | 2022 | Journal of Renewable Materials2022,10,5: | 0 |