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pH-indicative Films Based on Chitosan–PVA/Sepiolite and Anthocyanin from Red Cabbage: Application in Milk Packaging

Journal of Bionic Engineering 2022年第3期19卷 837-851页

作者： marya raji.lai.a.el foujji.mohamed el mehdi.mekhzoum Mounir el Achaby Hamid Essabir Rachid Bouhfid Abou el kacem Qaiss Moroccan Foundation for Advanced Science Innovation and ResearchComposites and Nanocomposites CenterRabat Design CenterRue Mohamed El JazouliMadinat El IrfaneRabat10100Morocco Faculty of Science Laboratoire de Chimie Organique Et HétérocycliqueUniversity Mohammed V in RabatRabat10100Morocco Materials Science and Nano-Engineering Department Mohammed VI Polytechnic UniversityLot 660–Hay Moulay RachidBen Guerir43150Morocco Mechanic Materialsand Composites(MMC)Laboratory of Energy EngineeringMaterials and SystemsNational School of Applied Sciences of AgadirIbn Zohr UniversityAgadir80000Morocco

Biobased smart packaging is been the most interesting research *** this study,pH-sensitive films based on anthocyanin molecules from red cabbage and sepiolite mineral nano-clay as functional additives were *** films were fabricated by casting method of blend polymer Chitosan/Poly(Vinyl Alcohol)at two fillers loading(5wt.%and 10wt.%).The structural,morphological,thermal,optical,hygroscopic,and mechanical properties as well as the pH sensitivity of films were *** thermal properties confirm that the amount of the anthocyanin in sepiolite was around 6.4%.The tensile strength and the young’s modulus of produced composites at 10wt.%sepiolite–anthocyanin content was increased to 8.90 MPa and 163 MPa,*** maximum water absorption that the films may absorb was 12.3%.pH sensitivity analysis showed that the Smart films change the color by changing the pH level,from pink at pH lower than 6 to yellow at pH higher than ***,the developed pH-sensitive films show band gaps in visible light that make them useful for monitoring milk spoilage.

关键词： Smart packaging Anthocyanin Red cabbage pH-sensitive and milk spoilage

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Optimization techniques in deep convolutional neuronal networks applied to olive diseases classification

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Artificial Intelligence in Agriculture 2022年第1期6卷 77-89页

作者： el mehdi Raouhi mohamed Lachgar a Hamid Hrimech Ali Kartit LTI Laboratory ENSAChouaib Doukkali University of El JadidaEl JadidaMorocco LAMSAD Laboratory ENSAHassan First UniversityBerrechidMorocco

Plants diseases have a detrimental effect on the quality but also on the quantity of agricultural ***,the prediction of these diseases is proving the effect on crop quality and on reducing the risk of production ***,the detection of plant diseases-either with a naked eye or using traditional methods-is largely a cumbersome process in terms of time,availability and results with a high-risk *** present work introduces a depth study of various CNN architectures with different optimization algorithms carried out for olive disease detection using classification techniques that recommend the best model for constructing an effective disease *** study presents a dataset of 5571 olive leaf images collected manually on real conditions from different regions of Morocco,that also includes healthy class to detect olive ***,one of the goals of this research was to study the correlation effects between CNN architectures and optimization algorithms evaluated by the accuracy and other performance *** highest rate in trained models was 100%,while the highest rate in experiments without data augmentation was 92,59%.Another subject of this study is the influence of the optimization algorithms on neuronal network *** a result of the experiments carried out,the MobileNet architecture using Rmsprop algorithms outperformed the others combinations in terms of performance and efficiency of disease detector.

关键词： Convolutional neuronal networks(CNN) Classification Optimization Gradient descent Plant diseases Olive dataset diseases(ODD)

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Application of four machine-learning methods to predict short-horizon wind energy

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Global Energy Interconnection 2023年第6期6卷 726-737页

作者： Doha Bouabdallaoui Touria Haidi Faissal elmariami Mounir Derri el mehdi Mellouli Laboratory LAGES Ecole Hassania des Travaux Publics(EHTP)Casablanca 20230Morocco Laboratory LESE Ecole Nationale Supérieure d’Electricitéet de Mécanique(ENSEM)Casablanca 20100Morocco Laboratory LESA School of Applied SciencesSidi Mohamed Ben Abdellah UniversityFez 30000Morocco

Renewable energy has garnered attention due to the need for sustainable energy *** power has emerged as an alternative that has contributed to the transition towards cleaner *** the importance of wind energy grows,it can be crucial to provide forecasts that optimize its performance *** intelligence(AI)methods have risen in prominence due to how well they can handle complicated systems while enhancing the accuracy of *** study explored the area of AI to predict wind-energy production at a wind farm in Yalova,Turkey,using four different AI approaches:support vector machines(SVMs),decision trees,adaptive neuro-fuzzy inference systems(ANFIS)and artificial neural networks(ANNs).Wind speed and direction were considered as essential input parameters,with wind energy as the target parameter,and models are thoroughly evaluated using metrics such as the mean absolute percentage error(MAPE),coefficient of determination(R~2),and mean absolute error(MAE).The findings accentuate the superior performance of the SVM,which delivered the lowest MAPE(2.42%),the highest R~2(0.95),and the lowest MAE(71.21%)compared with actual values,while ANFIS was less effective in this *** main aim of this comparative analysis was to rank the models to move to the next step in improving the least efficient methods by combining them with optimization algorithms,such as metaheuristic algorithms.

关键词： Wind Energy Prediction Support Vector Machines Decision Trees Adaptive Neuro-Fuzzy Inference Systems Artificial Neural Networks

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Primary Pituitary Abscess Gland Mimicking Adenoma: A Rare Case Report

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Open Journal of Modern Neurosurgery 2022年第3期12卷 167-174页

作者： Dimbi Jose Alingar Djimrabeye mehdi Hakkou Adyl Melhaoui Abdessamad el Ouahabi Service de neurochirurgie de l’H?pital Des Spécialités Rabat Morocco Faculté de médecine et pharmacie Université Mohamed V Rabat Morocco

Pituitary abscess gland is an uncommon lesion on sellar region. Clinical diagnosis is not easy to make and it is difficult to make difference from other pituitary lesions on clinical and sometimes on Neuroimaging. This pathology is characterized by vague symptoms, headaches, generalized tiredness and hypopituitarism manifestations. A 35-year-old woman was admitted to neurosurgery with complaints of headaches and blurred vision. MRI of the head revealed a suprasellar mass that was centrally hyperintense lesion on T2-weighted images with peripheral hypointensity. Treatment of the lesion of this lesion pituitary area through a transsphenoidal approach and spectrum antibiotic therapy with ceftriaxone metronidazole and vancomycin for 6 weeks. The patient continues to have pituitary insufficiency and is treated with oral hydrocortisone. After the diagnosis, the surgery and antibiotics should be commenced rapidly. Our aim is to report this rare case and to show how sometimes it is difficult to make diagnosis and clinical features vary mimicking other pituitary lesions before pre-operative and how to manage pituitary abscess gland. The outcome is usually good with proper treatment.

关键词： Pituitary Abscess Endoscopy Transsphenoidal Antibiotics

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Surgery in the Acute Phase of Infective Endocarditis: 5 Years after Our Initial Experience

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World Journal of Cardiovascular Diseases 2016年第8期6卷 275-284页

作者： Youssef el Bekkali Noureddine Atmani Siham Bellouize mohamed Drissi Younes Moutakiallah mehdi Bamous Abdessamad Abdou Fouad Nya Anis Seghrouchni Mahdi Aithoussa Brahim Amahzoune Abdedaim Hatim Ghadbane Abdelatif Boulahya Cardiac Surgery Department Mohammed V Military Hospital Rabat Morocco Reanimation of Cardiac Surgery Department Mohamed V Medical Faculty Rabat Morocco

Aim: Comparing the results of acute phase infectious endocarditis surgery between two periods. Methods and Results: The study is about 2 series, series A between 1993 and 1997, and series B between 1998 and 2012, respectively 13 and 51 patients. The two periods were similar concerning the number of patients per year, which was 3.12 cases/year for series A and 3.64 cases/year for series B. The authors noted a change in epidemiological profile, with an increase of median age (31 y.o for series A and 37 y.o for series B), and the emergency of endocarditis on prosthetic valve (none on series A and 8 cases for series B). Surgical indications and results didn’t change too much, hospital mortality rate was 15.3% for series A and 17.6% for series B. Conclusion: Infectious endocarditis is still a major public healthcare problem in developing countries, despite the development of diagnostic tools and patient care. Prevention is still the major asset in the treatment of this disease.

关键词： Infectious Endocarditis Acute Phase Surgery

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Comprehensive review of autoantibodies in patients with hyper-IgM syndrome

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Cellular & Molecular Immunology 2018年第6期15卷 610-617页

作者： mohamed-Ridha Barbouche Qubo Chen Marco Carbone Imen Ben-Mustapha Zakera Shums mehdi Trifa Federica Malinverno Francesca Bernuzzi Haiyan Zhang Nourhen Agrebi Gary L Norman Christopher Chang M Eric Gershwin Pietro Invernizzi Laboratory of Immunology Institute Pasteur de Tunis and Faculty of MedicineUniversity Tunis El Manar1002 TunisTunisia Humanitas Clinical and Research Center 20089 RozzanoItaly Clinical Laboratory Guangdong Provincial Hospital of Chinese medicine510000 GuangzhouChina Division of Gastroenterology and Center for Autoimmune Liver Diseases Department of Medicine and SurgeryUniversity of Milan-Bicocca20900 Monza(MB)Italy Department of Research and Development Inova Diagnostics92131 San DiegoCAUSA Department of Anesthesia and Intensive Care Children Hospital Bechir HamzaTunis and Faculty of MedicineUniversity Tunis El Manar1007 TunisTunisia Division of Gastroenterology and Hepatology Key Laboratory of Gastroenterology and HepatologyMinistry of HealthStateKey Laboratory for Oncogenes and Related GenesRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Institute of Digestive Disease200001 ShanghaiChina Division of Rheumatology Allergy and Clinical ImmunologyUniversity of California at Davis95616 DavisCAUSA

Hyper-immunoglobulin M syndrome is an X-linked primary immunodeficiency disease caused by mutations in the CD40 ligand *** CD40 ligand has been recently highlighted as playing a key role in the pathogenesis of primary biliary *** the present study,we assessed an extensive set of serum autoantibodies in a series of well-defined patients with hyper-immunoglobulin M ***,liver-related and liver-not-related autoantibodies IgG,IgM and IgA were tested by elISA and standard indirect immunofluorescence in HEp-2 cells in 13 Tunisian patients(8 males and 5 females,aged 1–12 years)with hyper-immunoglobulin M syndrome during 1995–2012 and,as controls,21 age-and gender-matched blood *** level of IgM antibody against MIT3 was significantly higher in patients than in controls(35.8 vs 10.7,P=0.002).Half of the hyperimmunoglobulin M syndrome patients were found to be anti-MIT3 IgM positive vs none of the controls(Po0.0001).Twenty-three percent of patients were found to be anti-sp100 antibody positive vs only 0.05%of *** immunofluorescence,92.3%of patients were MIT3 IgM positive vs none of the *** conclusion,the IgM class of anti-MIT3 antibodies was shown to be present by both elISA and immunofluorescence in most of the patients with hyper-immunoglobulin M *** presence of the hallmark of primary biliary cholangitis,a disease where the CD40 ligand is a key player,in an immunodeficiency disease caused by mutations in the CD40 ligand gene is very intriguing and opens new scenarios in understanding the immune pathogenesis of primary biliary cholangitis.

关键词： immunoglobulin M autoantibodies immunodeficiency hyper-immunoglobulin M syndrome primary biliary cholangitis

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Mechanical and Metallurgical Characterization of HSLA X70Welded Pipeline Steel Subjected to Successive Repairs

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Acta Metallurgica Sinica(English Letters) 2016年第6期29卷 568-576页

作者： Bouzid Maamache Mabrouk Bouabdallah Abdelhalim Brahimi Youcef Yahmi Billel Cheniti Brahim mehdi Research Center in Industrial Technologies(CRTI) P.O.Box 6416014 CheragaAlgeria Laboratoire des Aeronefs Universite de Blidal09000 BlidaAlgeria LGSDS Ecole Nationale PolytechniqueEl Harrach16200AlgiersAlgeria LTSM Universite de Blidal09000 BlidaAlgeria ICMMO/SP2M Bat 410Universite Paris-Sud 1191405Orsay CedexFrance

The aim of this work is to study the influence of successive weld repairs on the microstructure and the mechanical behavior of the heat-affected zone（HAZ） of an HSLA X70 steel. Detailed microstructural examination combined to grain size measurement showed that beyond the second weld repair, the microstructure of the HAZ undergoes significant change in the grain morphology and grain growth. The results of the X-ray diffraction analyzed using MAUD software indicated an increase in the crystallite size and a decrease in the dislocation density according to the number of weld repair operations. Consequently, a loss of mechanical properties, namely the yield strength and the toughness with the number of weld repairs, was recorded. Beyond the second weld repair operation, the properties of the welded joint do not fulfill the standards applied in piping industry.

关键词： HSLA X70 steel Successive weld repair Heat affected zone Dislocation density

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