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Rooted Tree Optimization for Wind Turbine Optimum Control Based on Energy Storage System

Computers, Materials & Continua 2023年第2期74卷 3977-3996页

作者： Billel Meghni Afaf Benamor oussama hachana Ahmad Taher Azar Amira Boulmaiz Salah Saad El-Sayed M.El-kenawy Nashwa Ahmad Kamal Suliman Mohamed Fati Naglaa K.Bahgaat Department of Electrical Engineering Badji Mokhtar UniversityLSEM LaboratoryAnnaba23000Algeria Department of Electrical Engineering Biskra UniversityLGEB LaboratoryBiskra07000Algeria Department of Drilling and Rig Mechanics Ksadi Merbah UniversityOuargla30000Algeria College of Computer and Information Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Faculty of Computers and Artificial Intelligence Benha UniversityBenha13518Egypt Department of Electronics University of Badji MokhtarLERICA LaboratoryAnnaba23000Algeria Delta Higher Institute for Engineering&Technology(DHIET) Mansoura35511Egypt Faculty of Artificial Intelligence Delta University for Science and TechnologyMansoura35712Egypt Faculty of Engineering Cairo UniversityGiza12613Egypt Department of Communications and Electronics Engineering Faculty of EngineeringCanadian International College(CIC)ElShiekh ZayedEgypt

The integration of wind turbines(WTs)in variable speed drive systems belongs to the main factors causing lowstability in electrical ***,in order to avoid this issue,WTs hybridization with a storage system is a *** paper investigates WT system operating at variable *** system contains of a permanent magnet synchronous generator(PMSG)supported by a battery storage system(BSS).To enhance the quality of active and reactive power injected into the network,direct power control(DPC)scheme utilizing space-vector modulation(SVM)technique based on proportional-integral(PI)control is ***,to improve the rendition of this method(DPC-SVM-PI),the rooted tree optimization technique(RTO)algorithm-based controller parameter identification is used to achieve PI optimal *** compare the performance ofRTO-based controllers,they were implemented and tested along with some other popular controllers under different working *** obtained results have shown the supremacy of the suggested PIRTO algorithm compared to competing controllers regarding total harmonic distortion(THD),overshoot percentage,settling time,rise time,average active power value,overall efficiency,and active power steadystate error.

关键词： Rooted tree optimization(RTO)method direct power control(DPC) wind turbine(WT) proportional integral(PI) PMSG

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Computation of Minimal Siphons in Petri Nets Using Problem Partitioning Approaches

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IEEE/CAA Journal of Automatica Sinica 2022年第2期9卷 329-338页

作者： Dan You oussama Karoui Shouguang Wang IEEE School of Information and Electronic Engineering(Sussex Artificial Intelligence Institute) Zhejiang Gongshang UniversityHangzhou 310018China

A large amount of research has shown the vitality of siphon enumeration in the analysis and control of deadlocks in various resource-allocation systems modeled by Petri nets(PNs).In this paper,we propose an algorithm for the enumeration of minimal siphons in PN based on problem *** proposed algorithm is an improved version of the global partitioning minimal-siphon enumeration(GPMSE)proposed by Cordone et al.(2005)in IEEE Transactions on Systems,Man,and Cybernetics-Part A:Systems and Humans,which is widely used in the literature to compute minimal *** experimental results show that the proposed algorithm consumes lower computational time and memory compared with GPMSE,which becomes more evident when the size of the handled net grows.

关键词： Index Terms-Petri nets(PNs) problem decomposition resource-allocation systems siphons

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Optimizing Decision-Making of A Smart Prosumer Microgrid Using Simulation

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Computers, Materials & Continua 2023年第7期76卷 151-173页

作者： oussama Accouche Rajan Kumar Gangadhari College of Engineering and Technology American University of the Middle EastEgaila 54200Kuwait Operations and IT ICFAI Business SchoolHyderabad501203India

Distributed renewable energy sources offer significant alternatives for Qatar and the Arab Gulf region’s future fuel supply and *** are essential for providing dependable power in difficult-to-reach areas while incorporating significant amounts of renewable energy *** energy-efficient data centers,distributed generation can be used to meet the facility’s overall power *** study primarily focuses on the best energy management practices for a smart microgrid in Qatar while taking demandside load management into *** article looked into a university microgrid in Qatar that primarily aimed to get all of its energy from the *** diesel generators are categorized as a dispatchable distributed generation with energy storage added to handle solar radiation from the sun and high grid power operating costs in the suggested scenario,wind turbines and solar Photovoltaic(PV)are classified as non-dispatchable distributed *** resulting linear math issues are assessed and displayed in MATLAB optimization software using a mixed-integer linear programming(MILP)*** to the simulation results,the suggested energy management strategy reduced the university microgrid’s grid power costs by 38.8%,making it an affordable solution which is somehow greater than the prior case scenario’s 23%*** installed solar system capacity’s effects on the economy,society,and finances were also assessed,and it became clear that the best option for the smart microgrid was determined that would be 325 kW of solar PV,25 kW of wind turbine,and 600 kW of diesel generators,*** the current situation,university administrators are urged to participate in distributed generators and adopt cutting-edge designs for energy storage technologies due to the significant environmental and financial benefits.

关键词： Energy management smart grid prosumer demand-side load management renewable resources wind turbines

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Analyzing the ZnO and CH_(3)NH_(3)PbI_(3) as Emitter Layer for Silicon Based Heterojunction Solar Cells

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Computers, Materials & Continua 2023年第1期74卷 575-590页

作者： Jasurbek Gulomov oussama Accouche Rayimjon Aliev Marc AZAB Irodakhon Gulomova Renewable Energy Source Laboratory Andijan State UniversityUzbekistan College of Engineering and Technology American University of the Middle EastKuwait

Today,it has become an important task to modify existing traditional silicon-based solar cell factory to produce high-efficiency silicon-based heterojunction solar cells,at a lower ***,the aim of this paper is to analyze CH_(3)NH_(3)PbI_(3) and ZnO materials as an emitter layer for p-type silicon wafer-based heterojunction solar ***_(3)NH_(3)PbI_(3) and ZnO can be synthesized using the cheap Sol-Gel method and can form n-type *** propose to combine these two materials since CH_(3)NH_(3)PbI_(3) is a great light absorber and ZnO has an optimal complex refractive index which can be used as antireflection *** photoelectric parameters of n-CH_(3)NH_(3)PbI_(3)/p-Si,n-ZnO/p-Si,and n-Si/p-Si solar cells have been studied in the range of 20–200 nm of emitter layer *** has been found that the short circuit current for CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si solar cells is almost the same when the emitter layer thickness is in the range of 20–100 ***,when the emitter layer thickness is greater than 100 nm,the short circuit current of CH_(3)NH_(3)PbI_(3)/p-Si exceeds that of n-ZnO/*** optimal emitter layer thickness for n-CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si was found equal to 80 *** this value,the short-circuit current and the fill factor were estimated around 18.27 mA/cm^(2) and 0.77 for n-CH_(3)NH_(3)PbI_(3)/p-Si and 18.06 mA/cm^(2) and 0.73 for n-ZnO/*** show that the efficiency of n-CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si solar cells with an emitter layer thickness of 80 nm are 1.314 and 1.298 times greater than efficiency of traditional n-Si/p-Si for the same *** findings will help perovskites materials to be more appealing in the PV industry and accelerate their development to become a viable alternative in the renewable energy sector.

关键词： Solar cell CH_(3)NH_(3)PbI_(3) ZnO silicon heterojunction simulation

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Aeroelastic Optimization of the High Aspect Ratio Wing with Aileron

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Computers, Materials & Continua 2022年第3期70卷 5569-5581页

作者： Mohammad Ghalandari Ibrahim Mahariq Farhad Ghadak oussama Accouche Fahd Jarad Department of Aerospace Engineering Sharif University of TechnologyTehran11155-8639Iran College of Engineering and Technology American University of theMiddle EastKuwait Faculty of Aerospace Engineering Engineering IHUTehranIran Department of Mathematics Cankaya UniversityEtimesgutAnkaraTurkey Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwan

In aircraft wings,aileron mass parameter presents a tremendous effect on the velocity and frequency of the flutter *** that purpose,we present the optimization of a composite design wing with an aileron,using machine-learning *** properties and its distribution have a great influence on the multi-variate optimization procedure,based on speed and frequency of ***,flutter speed was obtained to estimate aileron *** mass-equilibrated and other features were *** can deduced that changing the position and mass properties of the aileron are tangible following the speed and frequency of the wing *** on the proposed optimization method,the best position of the aileron is determined for the composite wing to postpone flutter instability and decrease the existed *** represented coupled aero-structural model is emerged from subsonic aerodynamics model,which has been developed using the panel method in multidimensional *** structural modeling has been conducted by finite element method,using the p-k *** fluid-structure equations are solved and the results are extracted.

关键词： Flutter speed flutter frequency composite wing aileron multi-disciplinary optimization method

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Phenolic extract from Ocimum basilicum restores lipid metabolism in Triton WR-1339-induced hyperlipidemic mice and prevents lipoprotein-rich plasma oxidation

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Food Science and Human Wellness 2017年第1期6卷 28-33页

作者： Ilham Touiss Saloua Khatib oussama Bekkouch Souliman Amrani Hicham Harnafi Laboratory of Biochemistry and Biotechnologies Department of BiologyFaculty of Sciences60000 OujdaMorocco

In this study we investigated the hypolipidemic and anti-lipoprotein-oxidation activities of phenolic extract from sweet basil a popular culinary *** hypolipidemic activity was studied in mice model injected intraperitoneally with Triton WR-1339 at a dose of 200 mg/kg body *** animals were grouped as follows:normolipidemic control group(n=8),hyperlipidemic control group(n=8)and phenolic extract-treated group(n=8)at a dose of 200 mg/kg body *** 7 h and 24 h treatment,the oral administration of the phenolic extract exerts a significant reduction of plasma total cholesterol,triglycerides and LDL-cholesterol concentrations(P<0.001).On the other hand,we demonstrated that the phenolic extract prevents plasma lipid oxidation by 16%(P<0.001),20%(P<0.001),32%(P<0.001)and 44%(P<0.001)at a doses of 10,25,50 and 100g/mL,*** results were compared with ascorbic acid used as standard synthetic *** analysis shows that the extract contains 4 major phenolics and is especially rich in rosmarinic *** finding indicates that the phenolic extract might be beneficial in lowering hyperlipidemia and preventing atherosclerosis.

关键词： Sweet basil Phenolic acids Hypocholesterolaemia Hypotriglyceridaemia Lipoprotein-rich plasma oxidation

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Coupling of Thermal-Hydraulic-Mechanical Processes for Geothermal Reservoir Modelling

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Journal of Earth Science 2015年第1期26卷 47-52页

作者： Ali Karrechl oussama Beltaief Ruyan Vincec Thomas Poulet Klaus Regenauer-Lieb School of Civil and Resource Engineering The University of Western AustraliaCrawley WA 6009Australia Tunisia Polytechnic School Rue AlkhawarizmiLa MarsaTunisia Earth Science and Resource Engineering CSIROKensington WA 6151Australia School of Petroleum Engineering University of New South WalesSydney NSW 2052Australia School of Earth and Environment The University of Western AustraliaPerth WA 6000Australia

This paper uses a fully coupled framework of thermal-hydraulic-mechanical processes to investigate how the injection and extraction of fluid within a geothermal reservoir impacts on the distributions of temperature, pore pressure, and deformation within the rock formations. Based on this formulation, a numerical model is developed in light of the thermodynamics of porous materials. The proposed procedure relies on the derivation of dissipative flow rules by postulating proper storage and dissipation functions. This approach opens new horizons for several resource engineering applications. Since it allows for full coupling, this formulation can play a key role in predicting risks when used for reservoir simulation. The results indicate that the injection-extraction process and temperature change have a definite impact on altering the in-situ properties of the reservoir.

关键词： poro-mechanics resource engineering fluid injection and extraction temperaturechange pore pressure stress deformation uplift subsidence.

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Microfibrillated Cellulose Based Ink for Eco-Sustainable Screen Printed Flexible Electrodes in Lithium Ion Batteries

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Journal of Materials Science & Technology 2016年第6期32卷 566-572页

作者： oussama El Baradai Davide Beneventi Fannie Alloin Roberta Bongiovanni Nadege Bruas-Reverdy Yann Bultel Didier Chaussy Univ.Grenoble AIpes LGP2F-38000 GrenobleFrance CNRS LGP2F-38000 GrenobleFrance Univ.Grenoble Alpes LEPMIF-38000 GrenobleFrance CNRS LEPMIF-38000 Grenoble.France Department of Applied Science and Technology DISAT.Politecnico di Torino.Corso Duca degli Abruzzi 24 10129 TorinoItaly

Free organic solvent ink containing graphite, carboxymethyl cellulose and microfibrillated cellulose as active material, dispersing and binder, respectively, has been formulated to produce flexible and eco- sustainable electrodes for lithium ion batteries. Content ratio of components and dispersion protocol were tailored in order to have theological properties suitable for a large and cheap manufacturing process as well as screen printing. The bio-sourced printed electrodes exhibit a high porosity value of 70% that limits the electrochemical performances. However, the calendering process enhances electrode performances by increasing the reversible capacity from 85 until 315 mAh/g and reducing porosity to an optimal value of 34%. Moreover the introduction of 2% w/w of monofluoro-ethylene carbonate in the electrolyte reduced their reversible capacity loss of 11% in the printed electrode.

关键词： Lithium ion batteries Flexible electrode Graphite Screen printing Cellulose Organic free solvent

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Faster Region Convolutional Neural Network(FRCNN)Based Facial Emotion Recognition

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Computers, Materials & Continua 2024年第5期79卷 2427-2448页

作者： J.Sheril Angel A.Diana Andrushia TMary Neebha oussama Accouche Louai Saker N.Anand Department of Electronics and Communication Engineering Karunya Institute of Technology and SciencesCoimbatore641114India College of Engineering and Technology American University of the Middle EastEgaila54200Kuwait Department of Civil Engineering Karunya Institute of Technology and SciencesCoimbatore641114India

Facial emotion recognition(FER)has become a focal point of research due to its widespread applications,ranging from human-computer interaction to affective *** traditional FER techniques have relied on handcrafted features and classification models trained on image or video datasets,recent strides in artificial intelligence and deep learning(DL)have ushered in more sophisticated *** research aims to develop a FER system using a Faster Region Convolutional Neural Network(FRCNN)and design a specialized FRCNN architecture tailored for facial emotion recognition,leveraging its ability to capture spatial hierarchies within localized regions of facial *** proposed work enhances the accuracy and efficiency of facial emotion *** proposed work comprises twomajor key components:Inception V3-based feature extraction and FRCNN-based emotion *** experimentation on Kaggle datasets validates the effectiveness of the proposed strategy,showcasing the FRCNN approach’s resilience and accuracy in identifying and categorizing facial *** model’s overall performance metrics are compelling,with an accuracy of 98.4%,precision of 97.2%,and recall of 96.31%.This work introduces a perceptive deep learning-based FER method,contributing to the evolving landscape of emotion recognition *** high accuracy and resilience demonstrated by the FRCNN approach underscore its potential for real-world *** research advances the field of FER and presents a compelling case for the practicality and efficacy of deep learning models in automating the understanding of facial emotions.

关键词： Facial emotions FRCNN deep learning emotion recognition face CNN

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An ultra-narrow linewidth solution-processed organic laser

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Light(Science & Applications) 2016年第1期5卷 660-664页

作者： oussama Mhibik Sebastien Forget Dan Ott George Venus Ivan Divliansky Leonid Glebov Sebastien Chénais UniversitéParis 13 Sorbonne Paris CitéLaboratoire de Physique des LasersF-93430 VilletaneuseFrance CNRS UMR 7538LPLF-93430 VilletaneuseFrance CREOL College of Optics and PhotonicsUniversity of Central FloridaP.O.Box 162700OrlandoFL 32816-2700USA

Optically pumped lasers based on solution-processed thin-film gain media have recently emerged as low-cost,broadly tunable,and versatile active photonics components that can fit any substrate and are useful for,e.g.,chemo-or biosensing or visible *** single-mode operation has been demonstrated in various resonator architectures with a large variety of gain media-including dye-doped polymers,organic semiconductors,and,more recently,hybrid perovskites-the reported linewidths are typically on the order of a fraction of a nanometer or broader,i.e.,the coherence lengths are no longer than a few millimeters,which does not enable high-resolution spectroscopy or coherent *** linewidth is fundamentally constrained by the short photon cavity lifetime in the standard resonator *** demonstrate here a novel structure for an organic thin-film solid-state laser that is based on a vertical external cavity,wherein a holographic volume Bragg grating ensures both spectral selection and output coupling in an otherwise very compact(,cm3)*** short-pulse(0.4 ns)pumping,Fourier-transform-limited laser pulses are obtained,with a full width at half-maximum linewidth of 900 MHz(1.25 pm).Using 20-ns-long pump pulses,the linewidth can be further reduced to 200 MHz(0.26 pm),which is four times above the Fourier limit and corresponds to an unprecedented coherence length of *** concept is potentially transferrable to any type of thin-film laser and can be ultimately made tunable;it also represents a very compact alternative to bulky grating systems in dye lasers.

关键词： narrow linewidth organic lasers VECSEL volume Bragg grating

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