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Thermo-Physical Potential of Recycled Banana Fibers for Improving the Thermal and Mechanical Properties of Biosourced Gypsum-Based Materials

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Journal of Renewable Materials 2024年第4期12卷 843-867页

作者： Youssef Maaloufa Soumia Mounir Sara Ibnelhaj fatima zohra el wardi Asma Souidi Yakubu Aminu Dodo Malika Atigui Mina Amazal Abelhamid Khabbazi Hassan Demrati Ahmed Aharoune National School of Architecture Agadir New ComplexIbn Zohr UniversityAgadirMorocco Energy Materials and Sustainable Development(EMDD)Center for WaterNatural ResourcesEnvironment and Sustainable Development(CERNE2D)Mohammed V UniversityRabatMorocco Thermodynamics and Energetics Laboratory Faculty of ScienceIbn Zohr UniversityAgadirMorocco Architectural Engineering Department Najran UniversityNajranSaudi Arabia The Centre of Scientific and Engineering Research Najran UniversityNajranSaudi Arabia Physics Department LPMAT LaboratoryFaculty of Sciences Ain ChockHassan II UniversityCasablancaMorocco

The development of bio-sourced materials is essential to ensuring sustainable construction;it is considered a locomotive of the green ***,it is an abundant material in our country,to which very little attention is being *** work aims to valorize the waste of the trunks of banana trees to be used in ***,the physicochemical properties of the fiber,such as the percentage of crystallization and its morphology,have been determined by X-ray diffraction tests and scanning electron microscopy to confirm the potential and the impact of the mode of drying on the quality of the banana fibers,with the purpose to promote the use of this material in ***,the results obtained with the gypsum matrix allowed us to note a preponderant improvement in the composite’s thermal properties thanks to the variation of the banana fiber ***,the impact of the nature of the banana fiber distribution(either fiber mixed in matrix or fiber series model)on the flexural and compressive strengths of the composites was *** results obtained indicate that the insulation gain reaches up to 40%.It depends on the volume fraction and type of distribution of the banana ***,the thermal inertia of the composites developed,represented by thermal diffusivity and thermal effusivity,was *** indicate a gain of 40%and 25%,respectively,in terms of thermal diffusivity and thermal effusivity of the developed composites compared to plaster *** the mechanical properties,the flexural strength depends on the percentage of the volume fraction of banana fibers used,and it can reach 20%more than the flexural strength of plaster;nevertheless,there is a significant loss in terms of the compressive strength of the studied *** results obtained are confirmed by the microstructure of the fiber *** fact,the morphology of the banana fibers was improved by the drying *** reduces the amorphous area an

关键词： Biosourced materials fiber banana flexural strength mechanical properties open-air drying plaster thermal properties waste management

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Study of Hygrothermal Behavior of Bio-Sourced Material Treated Ecologically for Improving Thermal Performance of Buildings

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Journal of Renewable Materials 2024年第5期12卷 1007-1027页

作者： Soumia Mounir Miloudia Slaoui Youssef Maaloufa fatima zohra el wardi Yakubu Aminu Dodo Sara Ibn-elhaj Abdelhamid Khabbazi National School of Architecture Agadir New Complex Ibn Zohr AgadirHay dakhla80000Morocco EMDD CERNE2DUniversity Mohammed V in RabatEst SaléSaléMedinaMorocco Physics Department LPMAT LaboratoryFaculty of Sciences Ain ChockHassan II UniversityCasablancaMorocco Architectural Engineering Department College of Engineering Najran UniversityNajran66426Saudi Arabia The Centre of Scientific and Engineering Research Najran UniversityNajranSaudi Arabia

Creating sustainable cities is the only way to live in a clean environment,and this problem can be solved by using bio-sourced and recycled *** this purpose,the authors contribute to the valuation of sheep wool waste as an eco-friendly material to be used in *** paper investigates the thermal,hygrothermal,and biological aspects of sheep wool by testing a traditional *** biological method of aerobic mesophilicﬂora has been *** X was used to determine the chemical composition of the materials ***,thermal characterization has been *** thermal conductivity is above 0.046(W·m^(-1)·K^(-1))and the thermal diffusivity is 1.56.10^(-6) m^(2)·s^(-1).Besides,the energy efﬁciency of using sheep wool in buildings was ***,its humidity behavior was evaluated in different aspects in both winter and *** of biological analyses show the efﬁciency of the treatment by removing the majority of the microorgan-isms:the value of yeast and mildew was reduced from 38.10^(2) to 2.10^(2)(UFC·g^(-1)).In addition to that,sheep wool permits obtaining a low thermal transmittance on the scale of the walls and low cooling needs on the scale of the building with a gain of 45%and 52%,respectively.

关键词： Sustainability sheep wool biological treatment hygrothermal wool behavior hot wire method

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Multiple Solutions for an elliptic Equation with Hardy Potential and Critical Nonlinearity on Compact Riemannian Manifolds

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Journal of Partial Differential Equations 2024年第1期37卷 1-24页

作者： MALIKI Youssef TERKI fatima zohra Laboratoire Systemes Dynamiques et Applications Department of Mathematics `University Aboubekr Belka¨id of TlemcenTlemcenAlgeria.

We prove the existence of multiple solutions of an elliptic equation with critical Sobolev growth and critical Hardy potential on compact Riemannian manifolds.

关键词： Riemannian manifolds Yamabe equation Hardy potential.

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BHJO: A Novel Hybrid Metaheuristic Algorithm Combining the Beluga Whale, Honey Badger, and Jellyfish Search Optimizers for Solving Engineering Design Problems

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 219-265页

作者： Farouq Zitouni Saad Harous Abdulaziz S.Almazyad Ali Wagdy Mohamed Guojiang Xiong fatima zohra Khechiba Khadidja Â Kherchouche Department of Computer Science and Information Technology Kasdi Merbah UniversityP.O.Box 30000OuarglaAlgeria Department of Computer Science College of Computing and InformaticsUniversity of SharjahP.O.Box 27272SharjahUnited Arab Emirates Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Science Research Center Applied Science Private UniversityAmman11937Jordan Guizhou Key Laboratory of Intelligent Technology in Power System College of Electrical EngineeringGuizhou UniversityGuiyang550025China

Hybridizing metaheuristic algorithms involves synergistically combining different optimization techniques to effectively address complex and challenging optimization *** approach aims to leverage the strengths of multiple algorithms,enhancing solution quality,convergence speed,and robustness,thereby offering a more versatile and efficient means of solving intricate real-world optimization *** this paper,we introduce a hybrid algorithm that amalgamates three distinct metaheuristics:the Beluga Whale Optimization(BWO),the Honey Badger Algorithm(HBA),and the Jellyfish Search(JS)*** proposed hybrid algorithm will be referred to as *** this fusion,the BHJO algorithm aims to leverage the strengths of each *** this hybridization,we thoroughly examined the exploration and exploitation capabilities of the BWO,HBA,and JS metaheuristics,as well as their ability to strike a balance between exploration and *** meticulous analysis allowed us to identify the pros and cons of each algorithm,enabling us to combine them in a novel hybrid approach that capitalizes on their respective strengths for enhanced optimization *** addition,the BHJO algorithm incorporates Opposition-Based Learning(OBL)to harness the advantages offered by this technique,leveraging its diverse exploration,accelerated convergence,and improved solution quality to enhance the overall performance and effectiveness of the hybrid ***,the performance of the BHJO algorithm was evaluated across a range of both unconstrained and constrained optimization problems,providing a comprehensive assessment of its efficacy and applicability in diverse problem ***,the BHJO algorithm was subjected to a comparative analysis with several renowned algorithms,where mean and standard deviation values were utilized as evaluation *** rigorous comparison aimed to assess the performance of the BHJOalgorithmabout its counterparts,shedd

关键词： Global optimization hybridization of metaheuristics beluga whale optimization honey badger algorithm jellyfish search optimizer chaotic maps opposition-based learning

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Survey of current practices in the management of cervical cancer by Moroccan radiotherapists

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Radiation Medicine and Protection 2024年第2期5卷 124-130页

作者： Bouchra Amaoui Slimane Semghouli Hanane el Kacemi Issam Lalya Nadia Benchekroune fatima Safini Sanae Abbaoui Biotechnology and Medicine(BioMed)Laboratory Faculty of Medicine and PharmacyIbn Zohr UniversityAgadirMorocco Souss Massa University Hospital Center AgadirMorocco Higher Institute of Nursing Professions and Health Techniques AgadirMorocco Mohammed-V University RabatMorocco National Institute of Oncology(INO) RabatMorocco Mohammed-V Military Instruction Hospital RabatMorocco Hassan II University CasablancaMorocco Mohammed VI Oncology Center-Casablanca University Hospital CasablancaMorocco Regional Oncology Center AgadirMorocco

Objective:To assess the applicability degree of the international guidelines by Moroccan radiotherapists,in order to improve the management of cervical cancer(CC),since CC is the second most common cancer for women in ***:This cross-sectional study was carried out using a questionnaire sent online to Moroccan *** questionnaire covered participants'characteristics,initial assessment and treatment preparation,techniques and indications for radiotherapy and brachytherapy,dose and indications,as well as on the protocol adopted in the intermediate stages and the location of adjuvant treatments and assessments'***:74 radiotherapists out of 300 have responded to the *** 27.0%of practitioners reported discussing patient records systematically in a multidisciplinary consultation meeting(MCM).For the initial assessment,77.0%requested pelvic magnetic resonance imaging(MRI).It is significantly less requested in regional oncology centers(ROCs)than in university hospital centers(UHCs)or the private sector(Pelvic MRI(82.2%)while PET/CT was recommended by only less than 10%.Conclusions:The findings obtained show that our radiotherapists generally comply with international guidelines for the cervical cancer ***,they should still enhance their practices for the first staging evaluation,the use of systematic MCMs,the doses and treatment techniques used,and

关键词： Radiotherapy Brachytherapy Cervical cancer Morocco

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SEIR-SW, Simulation Model of Influenza Spread Based on the Small World Network

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Tsinghua Science and Technology 2015年第5期20卷 460-473页

作者： fatima-zohra Younsi Ahmed Bounnekar Djamila Hamdadou Omar Boussaid Department of Computer Science Faculty of SciencesUniversity of Oran the ERIC(Entrepts Reprèsentation et Ingènierie des Connaissances)Lab University of Lumire Lyon 2Lyon 69676 France Polytechnic School University of Claude Bernard Lyon1 Lyon 69622 France

This study modeled the spread of an influenza epidemic in the population of Oran, Algeria. We investigated the mathematical epidemic model, SEIR（Susceptible-Exposed-Infected-Removed）, through extensive simulations of the effects of social network on epidemic spread in a Small World（SW） network, to understand how an influenza epidemic spreads through a human population. A combined SEIR-SW model was built, to help understand the dynamics of infectious disease in a community, and to identify the main characteristics of epidemic transmission and its evolution over time. The model was also used to examine social network effects to better understand the topological structure of social contact and the impact of its properties. Experiments were conducted to evaluate the combined SEIR-SW model. Simulation results were analyzed to explore how network evolution influences the spread of desease, and statistical tests were applied to validate the model. The model accurately replicated the dynamic behavior of the real influenza epidemic data, confirming that the susceptible size and topological structure of social networks in a human population significantly influence the spread of infectious diseases. Our model can provide health policy decision makers with a better understanding of epidemic spread,allowing them to implement control measures. It also provides an early warning of the emergence of influenza epidemics.

关键词： SEIR-SW(Susceptible-Exposed-Infected-Removed within Small World network) statistical analysis methods Social Network Analysis(SNA) visualization of SNA disease outbreaks

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Towards the Development of Mechanical Systems Entirely Based on Natural Materials

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Fluid Dynamics & Materials Processing 2022年第5期18卷 1285-1292页

作者： fatima zohra elhilali Hicham Fihri-Fassi Hassan First University of Settat Settat26000Morocco

In order to mitigate the risks stemming from the utilization of mineral and synthetic organic substances,consensus exists in the literature that additional efforts should be devoted to the identification of adequate equivalent natural(ecological)*** work presents the outcomes of a preliminary study where the physical,mechanical,chemical and thermal properties of natural fibers have been ***,areca,and materials such as Moroccan doum and jute are *** a case study,a brake pad based on natural fibers is critically assessed.

关键词： Areca fiber doum fiber(Dwarf palm) jute fiber natural materials natural fibers palm fiber fiber’s properties

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Hydroxychloroquine serum concentration in coronavirus disease 2019(COVID-19)patients:a retrospective study

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Forensic Sciences Research 2021年第4期6卷 215-217页

作者： Saadi fatima zohra Lachgueur Nassima Department of Toxicology University hospitaloranalgeria Pharmacy Department Faculty of Medicineoranalgeria Faculty of Medicine environmental health research Laboratoryoranalgeria

Algeria has adopted a therapeutic protocol using hydroxychloroquine(HCQ)as a first-line treatment for patients with coronavirus disease 2019(COVID-19).The administration of HCQ must be accompanied by appropriate cardiac and therapeutic pharmacological monitoring to avoid side effects and *** work is a retrospective descriptive study aiming to estimate the HCQ levels of COVID-19 *** concentrations in blood samples from COVID-19 patients were determined using high performance liquid chromatography with diode array detector(HPLC-DAD)after liquid-liquid extraction of *** coefficient of determination(r2)of this method was *** limits of quantification and detection were 0.05 mg/L and 0.02 mg/L,respectively,with coefficients of variance less than 6%.Patient monitoring was performed following recommendations for the therapeutic pharmacological monitoring of HCQ in patients treated for SARS-CoV-2(COVID-19)infection validated by the coordinated action(AC43)of the National Agency for Research on AIDS and Viral Hepatitis(ANRS)and Therapeutic Pharmacological Monitoring and Personalization of Treatments(STP-PT)group.A total of 267 blood samples from 240 patients were analyzed,49%for males and 51%for *** than a third of the patients were 60-80 years *** majority(68%)of the HCQ concentrations were between 0.1 and 1 mg/***,more than 20%were between 0.05 and 0.1 mg/L,while only 7.5%were less than 0.05mg/L and 1.5%were greater than 1 mg/*** summary,patients with COVID-19 showed a good tolerance to HCQ in the majority of cases.

关键词： Forensic sciences concentration COVID-2019 hydroxychloroquine HPLC-DAD plasma

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Identity Dilemma and the Lack of Reciprocity in Diana Abu-Jaber's Crescent

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Journal of Foreign Languages and Cultures 2020年第2期4卷 114-121页

作者： fatima zohra Gasmi Bo Cao University of 8 Mai 1945 Hunan Normal University

Diana Abu-Jaber's Crescent astutely interweaves the search for identity into a romantic love *** article approaches it using a new identity concept found in Amin MaaUmrs work In the Name of Identity:Violence and the Need to Belong(Les identitSs meurtrieres).It investigates the identity dilemma that the female protagonist,Sirine,faces while living in-between her conflicting Arab and American *** argues that her struggle is amplified by the lack of what Maalouf calls“reciprocity.”Sirine finds it too difficult to assimilate into the mainstream Arab *** around her do not accept her,and she reacts by upholding her Arab *** article maintains that even small acts of reciprocity can reduce her identity dilemma.

关键词： Diana Abu-Jaber Crescent Amin Maalouf Identity Reciprocity

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Characterization of organic matter deposited in the oriental zone from Moknine hypersaline environment, oriental Tunisia

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Chinese Journal Of Geochemistry 2005年第4期24卷 345-351页

作者： Raja CHAIRI zohra el ASMI DJelLOULI Laboratoire de Ressources Minerales et Environnement Faculté des Sciences de Tunis 2092 Univ. Tunis el Manar Tunisie Laboratoire de Ressources Minerales et Environnement Faculté des Sciences de Tunis 2092 Univ. Tunis El Manar Tunisie

The geochemistry data show that the total organic carbon (TOC) contents are high in the surface sediments in the eastern part of the Moknine’s Sebkha. Low decreasing of organic matter (OM) with increasing depth indicates the good preservation of OM in modern sediments. “Lignite levels” inserted in the sand sequence and deposited at the edge and in the intermediate zone are considered as lithologic and organic markers. It is characterized by high TOC and poor hydrogen index (HI), indicating a higher plant origin and good preservation of OM in thin beds under anoxic condition.; In all samples low values of HI are typical for strong terrigenous input in the Sebkha. Gas chromatography (GC) of saturate fraction showed that OM in the border zone is provided from plants but in the central zone OM is a mixture of terrestrial fraction and little fraction from microalgae. The study of free lipids indicated that this environment was influenced by intense bacterial and microbial activities, as evidenced by the abundance of n-alkanes and nC-{18}-nC-{22}.

关键词：突尼斯地球化学有机物质褐煤地质条件

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