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Effect of Macronutrients, Cytokinins and Auxins, on <i>in Vitro</i>Organogenesis of <i>Thymus vulgaris</i>L.

American Journal of Plant Sciences 2019年第9期10卷 1482-1502页

作者： Zineb Nejjar el Ansari amina el mihyaoui Ibtissam Boussaoudi Rajae Benkaddour Ouafaa Hamdoun Houda Tahiri Alain Badoc Aicha el Oualkadi Ahmed Lamarti Laboratory of Plant Biotechnology Biology Department Faculty of Sciences Abdelmalek Essaadi University Tetouan Morocco Genetic Improvement of Plants Laboratory /National Institute of Agronomic Research (INRA) Tangier Morocco Axe MIB (Molécules d’Intéret Biologique) Unité de Recherche (Enologie EA 4577 USC 1366 INRA) UFR des Sciences Pharma-ceutiques Université de Bordeaux ISVV (Institut des Sciences de la Vigne et du Vin) Bordeaux France

The present study reports an efficient protocol for in vitro propagation of Thymus vulgaris L., an aromatic and medicinal plant in Morocco. Initially, we performed in vitro multiplication of Thymus vulgaris explants existing in the laboratory and obtained from micropropagation by shoot tip culture. Afterwards, we have evaluated the effect of six macronutrients. After that, seven cytokinins (Kin, BAP, 2iP, DPU, Adenine, Zeatine and TDZ) in three different concentrations (0.46, 0.93, 2.32 μM) have been evaluated to optimize cultures multiplication and elongation. Moreover, the effect of three auxins (IAA, IBA and NAA) at 0.57 μM, combined to 4 cytokinins (Kin, BAP, DPU and Ad.) at 0.46 μM, on shoot rooting has been studied. Thereby, MS medium has been proved the most favorable for plantlets growing. Also, we found that the addition of certain cytokinins, specifically 0.46 Kin, 0.46 and 0.93 BAP, 0.46 2iP, 0.46 DPU, 0.46 Ad. and 0.46 Zeat., ensures better multiplication and growth of vitroplants. In addition, multiplication and rooting of cultures were well optimized after addition 0.46 Kin + 0.57 IAA or NAA, 0.46 DPU + 0.57 IBA and 0.46 Ad. + 0.57 IBA combinations to the culture medium. Lastly, plantlets with roots were successfully acclimatized to ex-vitro conditions and these latter served as a source to establish in vitro culture again.

关键词： Thymus vulgaris L. Macronutrients Cytokinins Auxins In Vitro Propagation

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Hidden attractors in a new fractional-order discrete system: Chaos, complexity, entropy, and control

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Chinese Physics B 2020年第5期29卷 174-181页

作者： Adel Ouannas amina Aicha Khennaoui Shaher Momani Viet-Thanh Pham Reyad el-Khazali Laboratory of Mathematics Informatics and Systems(LAMIS)University of Laarbi TebessiTebessa12002Algeria College of Humanities and Sciences Ajman UniversityAjmanUAE Laboratory of Dynamical Systems and Control University of Larbi Ben M’hidiOum El BouaghiAlgeria Department of Mathematics Faculty of ScienceUniversity of JordanAmman 11942Jordan Nonlinear Systems and Applications Faculty of Electrical and Electronics EngineeringTon Duc Thang UniversityHo Chi Minh CityVietnam ECCE Department Khalifa UniversityAbu-Dhabi 127788United Arab Emirates

This paper studies the dynamics of a new fractional-order discrete system based on the Caputo-like difference *** is the first study to explore a three-dimensional fractional-order discrete chaotic system without *** phase portrait,bifurcation diagrams,and largest Lyapunov exponents,it is shown that the proposed fractional-order discrete system exhibits a range of different dynamical ***,different tests are used to confirm the existence of chaos,such as 0-1 test and C0 *** addition,the quantification of the level of chaos in the new fractional-order discrete system is measured by the approximate entropy ***,based on the fractional linearization method,a one-dimensional controller to stabilize the new system is *** results are presented to validate the findings of the paper.

关键词： discrete chaos discrete fractional calculus hidden attractor

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Advancements,strategies,and prospects of solid oxide electrolysis cells(SOECs):Towards enhanced performance and large-scale sustainable hydrogen production

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Journal of Energy Chemistry 2024年第7期94卷 688-715页

作者： amina Lahrichi Youness el Issmaeli Shankara S.Kalanur Bruno G.Pollet Green Hydrogen Lab(GH2Lab) Hydrogen Research Institute(HRI)Universitédu QuébecàTrois-Rivières(UQTR)3351 boulevard des ForgesTrois-RivièresQuébec G9A 5H7Canada

Solid oxide electrolysis cells(SOECs)represent a crucial stride toward sustainable hydrogen generation,and this review explores their current scientific challenges,significant advancements,and potential for large-scale hydrogen *** SOEC technology,the application of innovative fabrication tech-niques,doping strategies,and advanced materials has enhanced the performance and durability of these systems,although degradation challenges persist,implicating the prime focus for future *** we provide in-depth analysis of the recent developments in SOEC technology,including Oxygen-SOECs,Proton-SOECs,and ***,Hybrid-SOECs,with their mixed ionic conducting electrolytes,demonstrate superior efficiency and the concurrent production of hydrogen and *** with the capacity to harness waste heat,these advancements in SOEC technology present signif-icant promise for pilot-scale applications in *** review also highlights remarkable achieve-ments and potential reductions in capital expenditure for future SOEC systems,while elaborating on the micro and macro aspects of sOECs with an emphasis on ongoing research for optimization and *** concludes with the potential of SOEC technology to meet various industrial energy needs and its significant contribution considering the key research priorities to tackle the global energy demands,ful-fillment,and decarbonization efforts.

关键词： Solid oxide electrolysis cells Proton-SOECs Oxygen-SoECs Hybrid-SOECs Intermediate-high temperature electrolysers Hydrogenproduction

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Airstacknet: A Stacking Ensemble-Based Approach for Air Quality Prediction

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Computers, Materials & Continua 2023年第1期74卷 2073-2096页

作者： Amel Ksibi amina Salhi Ala Saleh Alluhaidan Sahar A.el-Rahman Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadhSaudi Arabia electrical Engineering Department Faculty of Engineering-ShoubraBenha UniversityCairoEgypt

The quality of the airwe breathe during the courses of our daily lives has a significant impact on our health and well-being as ***,personal air quality measurement remains *** this study,we investigate the use of first-person photos for the prediction of air *** main idea is to harness the power of a generalized stacking approach and the importance of haze features extracted from first-person images to create an efficient new stacking model called AirStackNet for air pollution *** consists of two layers and four regression models,where the first layer generates meta-data fromLight Gradient Boosting Machine(Light-GBM),Extreme Gradient Boosting Regression(XGBoost)and CatBoost Regression(CatBoost),whereas the second layer computes the final prediction from the meta-data of the first layer using Extra Tree Regression(ET).The performance of the proposed AirStackNet model is validated using public Personal Air Quality Dataset(PAQD).Our experiments are evaluated using Mean Absolute Error(MAE),Root Mean Square Error(RMSE),Coefficient of Determination(R2),Mean Squared Error(MSE),Root Mean Squared Logarithmic Error(RMSLE),and Mean Absolute Percentage Error(MAPE).Experimental Results indicate that the proposed AirStackNet model not only can effectively improve air pollution prediction performance by overcoming the Bias-Variance tradeoff,but also outperforms baseline and state of the art models.

关键词： Personal air quality prediction airstacknet ensemble learning feature extraction stacking

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Research on Privacy Preservation and Verifiability in Federated Learning Under Resource Heterogeneity

Research on Privacy Preservation and Verifiability in Federa...

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作者： amina el GARNE 济南大学

学位级别：硕士

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Impact of the Inlet Flow Angle and Outlet Placement on the Indoor Air Quality

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Fluid Dynamics & Materials Processing 2024年第11期20卷 2603-2616页

作者： Ikram Mostefa Tounsi Mustapha Boussoufi amina Sabeur Mohammed el Ganaoui Laboratoire des Sciences et Ingénierie Maritimes Facultéde Génie Mécanique.Universitédes Sciences et de la Technologie d’Oran Mohammed BoudiafBP 1505 El M’NaouerOran31000Algérie Laboratoire LERMAB IUT Longwy Universitéde LorraineNancy54000France

This study aims to optimize the influence of the inlet inclination angle on the Indoor Air Quality(IAQ),heat,and temperature distribution in mixed convection within a two-dimensional square cavityfilled with an air-CO_(2)*** air-CO_(2)mixture enters the cavity through two inlet openings positioned at the top wall,which is set at the ambient temperature(TC).Three values of the Reynolds numbers,ranging from 1000 to 2000,are considered,while the Prandtl number is kept constant(Pr=0.71).The temperature distribution and streamlines are shown for Rayleigh number(Ra)equal to 104,three inlet inclination anglesϕ(0,π/6 andπ/4)and three CO_(2)concentrations values(1500,2500,3500 ppm)applied at both hot vertical walls(maintained at a constant temperature TH).Afinite volume method is used under the assumption of two-dimensional laminarflow to solve the NavierStokes and energy *** results indicate that inlet inclination angle has an impact on the indoor air quality(IAQ),which,in turn,affects the heat transfer distribution and thermal comfort within the cavity.

关键词： Mixed convection air-CO_(2) mixture inlet inclination angles laminarflow indoor air quality

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Efficiency and degradation products elucidation of the photodegradation of mefenpyrdiethyl in water interface using TiO_2 P-25 and Hombikat UV100

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Journal of Environmental Sciences 2012年第9期24卷 1686-1693页

作者： amina Chnirheb Mourad Harir Basem Kanawati Mohammed el Azzouzi Istvan Gebefgi Philippe Schmitt-Kopplin Department of BioGeoChemistry and Analytik German Research Center for Environmental HealthHelmholtz Center MunichIngoldstdter Landstraβe 1D-85764 NeuherbergGermany University Mohammed V-Agdal Faculty of SciencesAvenue Ibn BatoutaBP 1014 RabatMorocco. Lehrstuhl fr Chemische-Technische Analyse und Chemische Lebensmitteltechnologie Technische Universitt MuenchenWeihenstephaner Steig 2385354 Freising-WeihenstephanGermany

The photodegradation of mefenpyrdiethyl （MFD）, an herbicide safener, was investigated in aqueous suspensions by using Degussa P-25 and Hombikat UV100 titanium oxide under simulated sunlight irradiation. The effects of initial concentration of the herbicide, pH, catalysts and hydrogen peroxide doses as well as their combinations were studied and optimized. Accordingly, the kinetic parameters were determined and the effectiveness of the processes was assessed by calculating the rate constants. A pseudo first-order kinetics was observed. Under experimental conditions, the degradation rate constants were strongly influenced using P-25 and no noticeable effect was observed for Hombikat UV100. DFT calculations with B3LYP/6-311＋G（2d,p）//B3LYP/6-31＋G（d,p） level of theory were performed to check whether significant conformational changes occur when the charge state of the MFD substrate changes and whether these changes could play a role in the dependency of photodegradation rate constant on the studied pH. High resolution mass spectrometry （FT-ICR/MS） was implemented to identify the main degradation products.

关键词： photodegradation mefenpyrdiethyl P-25/Hombikat UV100 kinetic degradation products

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A new correlation-based approach for ensemble selection in random forests

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International Journal of Intelligent Computing and Cybernetics 2021年第2期14卷 251-268页

作者： Mostafa el Habib Daho Nesma Settouti Mohammed el Amine Bechar amina Boublenza Mohammed Amine Chikh Biomedical Engineering Laboratory University of TlemcenTlemcenAlgeria

Purpose-Ensemble methods have been widely used in the field of pattern recognition due to the difficulty offinding a single classifier that performs well on a wide variety of *** the effectiveness of thesetechniques,studies have shown that ensemble methods generate a large number of hypotheses and thatcontain redundant classifiers in most *** works proposed in the state of the art attempt to reduce allhypotheses without affecting ***/methodology/approach-In this work,the authors are proposing a pruning method that takes intoconsideration the correlation between classifiers/classes and each classifier with the rest of the *** authorshave used the random forest algorithm as trees-based ensemble classifiers and the pruning was made by atechnique inspired by the CFS(correlation feature selection)***-The proposed method CES(correlation-based Ensemble Selection)was evaluated onten datasets from the UCI machine learning repository,and the performances were compared to sixensemble pruning *** results showed that our proposed pruning method selects a smallensemble in a smaller amount of time while improving classification rates compared to the ***/value-CES is a new ordering-based method that uses the CFS *** selects,in a shorttime,a small sub-ensemble that outperforms results obtained from the whole forest and the other state-of-thearttechniques used in this study.

关键词： Ensemble pruning Random forest Tree selection Correlation CFS CES

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Effect of the synthesis route on the structural and dielectric properties of SrBi1.8Y0.2Nb2O9 ceramics

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International Journal of Minerals,Metallurgy and Materials 2018年第11期25卷 1304-1312页

作者： Mohamed Afqir amina Tachafine Didier Fasquelle Mohamed elaatmani Jean-Claude Carru Abdelouahad Zegzouti Mustapha el Hammioui Laboratoire des Sciences des Matériaux Inorganiques et leurs Applications Facultédes Sciences SemlaliaUniversitéCadi AyyadMarrakech 40000Maroc Unite de Dynamique et Structure des Materiaux Moleculaires Universite du Littoral-Cote d’OpaleCalais 62100France Laboratoire de recherche sur la réactivitédes matériaux et l’optimisation des procédés Facultédes Sciences SemlaliaUniversitéCadi Ayyad 40000MarrakechMaroc

This work is devoted to the synthesis and characterization of yttrium-doped SrBi_2Nb_2O_9 ceramics prepared by three methods: solid state reaction, co-precipitation, and hydrothermal. Multiple characterizations, specifically scanning electron microscopy(SEM), X-ray powder diffraction(XRD), and Fourier transform infrared spectroscopy(FTIR), were used to validate the structural feature. The crystallite size was estimated by Scherrer's formula and the Williamson–Hall plot. The effect of the process on the band intensities of the FTIR spectra was investigated. The crystallite size and microstructure of ceramics prepared from different synthesis processes were strongly influenced by the sinterability. SEM images revealed nanograin ceramics for materials prepared by co-precipitation and hydrothermal methods and micrograin ceramics prepared by the solid state method. The synthesized compounds underwent phase transitions at 480–465°C. The dielectric and electrical properties of these Y-doped SrBi_2Nb_2O_9 ceramics appear to be dependent on the grain size.

关键词： Aurivillius,synthesis routes crystallite size microstructure dielectric

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Prenatal exposure to the fluoride containing psychiatric drug fluoxetine and anti-oxidative alterations in the neonatal rat brain

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BIOCelL 2019年第2期43卷 65-71页

作者： RAMESA SHAFI BHAT amina el GEZEERY ABIR BEN BACHAN MONA AWAD ALONAZI LEENA SALEH ALSUHAIBANI AFAF el-ANSARY Biochemistry Department College of ScienceKing Saud University Human Genetic Department Medical Research instituteAlexandria UniversityEgypt Central Laboratory Female Centre for Scientific and Medical StudiesKing Saud UniversitySaudi Arabia Medicinal Chemistry Department National Research CentreDokkiCairoEgypt

Fluoride is a key ingredient of many psychiatric drugs like fluoxetine(Prozac■Fluoxetine■).Pregnant women frequently use this drug as they suffer from depression and anxiety disorders during this *** is able to reach the fetus through the placenta and passes to the newborn through *** the present study,female Wistar rats were treated with 5,10,and 20 mg/L fluoxetine(containing 94% fluorides)from pregnancy day 10 to day *** delivery,the levels of the enzymatic antioxidants in the brain of their offspring at postnatal day 2 were *** results showed that,in all fluoxetine exposed groups compared with the control group,there was a significant decrease(P0.05)in the activity of malondialdehyde and creatine *** results suggest that fluoxetine may be a developmental neurotoxicant due to presence of fluoride hence must be used carefully during pregnancy.

关键词： Antidepressant Brain Neonate Prozac Oxidative stress

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