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Journal of Rare Earths 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier R.Masrour M.Hamedoun J.Kharbach a.rezzouk.a.hourmatallah N.Benzakour K.Bouslykhane Laboratory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this paper,we analyzed the physical characteristics of the ternary alloys RE_(2)Rh_(3)Ge(RE=Pr and Sm)using the first principles calculation based on functional density theory integrated in the Wien2k *** calculated formation energies of Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge are−5.3827 and−5.2782 eV/atom,respectively,showing that these alloys may exist *** results of the band structure and density of states indicate that all of the compounds tested are magnetic metals,and their magnetism is mostly related to the contribution of Pr and Sm *** total magnetic moments of Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge are 4.07245 and 11.16161μB/f.u,*** parameters such as heat capacity at constant pressure,entropy,Debye temperature,lattice volume,compressibility coefficients,and Grüneisen parameter alloys were calculated using the Gibbs algorithm and studied in depth over a large temperature range of 0-900 *** Debye temperature increases with increasing pressure and decreases with decreasing ***,the Debye temperatures calculated at p=0 GPa and T=300 K are equal to be 342 and 322 K for Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge,*** optical characteristics such as the real and imaginary portions of the dielectric function,the absorption coefficient,the energy-loss function,and the refractive index were investigated and discussed in more depth.

关键词： Magnetic metals Functional density theory Density of states Magnetic moment Optical and thermodynamic properties Rare earths

Intrinsic ferromagnetism in CoBr2 nanolayers:a DFT+U and Monte Carlo study

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Communications in Theoretical Physics 2021年第11期73卷 165-170页

作者： A Jabar R Masrour G Kadim M Hamedoun A hourmatallah N Benzakour A rezzouk K Bouslykhane J Kharbach Laboratory of Solid Physics Faculty of Sciences Dhar El MahrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco MAScIR Institute of Nanomaterials and NanotechnologiesRabatMorocco Equipe de Physique du Solide Laboratoire LIPIEcole Normale SupérieureBensoudaBP 5206FèsMorocco

The intrinsic ferromagnetism of CoBr2 bulk was investigated using DFT(density functional theory)combined with the full potential linear augmented plane wave method and Monte Carlo *** ground state of CoBr2 exhibits ferromagnetic behavior and a semiconductor *** used the generalized gradient approximation(GGA)and GGA+U(Hubbard correction)approximations to determinate the magnetic *** magnetic moment reached the experimental value and was in good agreement with the other theoretical *** value obtained was used as an input to a Monte Carlo study to calculate the thermal magnetization and magnetic hysteresis *** behavior was observed and was found to be due to an positive exchange *** results lead us to believe that this material could be a promising spintronic material.

关键词： CoBr2 nanolayer DFT Monte Carlo transition temperature magnetic hysteresis cycles

Spin and Orbital Magnetisms of NiFe Compound:Density Functional Theory Study and Monte Carlo Simulation

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Chinese Physics Letters 2018年第3期35卷 58-61页

作者： R.Masrour A.Jabar E.K.Hlil M.Hamedoun A.Benyoussef A.hourmatallah K.Bouslykhane A.rezzouk N.Benzakour Laboratory of Materials ProcessesEnvironment and QualityCady Ayyed UniversityNational School of Applied SciencesSail 63 46000Morocco Institut Neel CNRS et Universite Grenoble AlpesBP 166F-38042 Grenoble Cedex 9France Institute of Nanomaterials and Nanotechnologies MAScIRRabatMorocco Hassan II Academy of Science and Technology RabatMorocco Equipe de Physique du Solide Laboratoire LIPIEcole Normale SuperieureBP 5206BensoudaFesMorocco Laboratoire de Physique du Solide Universite Sidi Mohammed Ben AbdellahFaculte des Sciences Dhar MahrazBP 1796FesMorocco

The self-consistent ab initio calculations based on the density functional theory approach using the full potential linear augmented plane wave method are performed to investigate both the electronic and magnetic properties of the NiFe compound. Polarized spin within the framework of the ferromagnetic state between magnetic ions is considered. Also, magnetic moments considered to lie along （001） axes are computed. The Monte Carlo simulation is used to study the magnetic properties of NiFe. The transition temperature To, hysteresis loop, coercive field and remanent magnetization of the NiFe compound are obtained using the Monte Carlo simulation.

关键词： Fe Spin and Orbital Magnetisms of Ni Fe Compound Ni

Impacts of anisotropy coefficient and porosity on the thermal conductivity and P-wave velocity of calcarenites used as building materials of historical monuments in Morocco

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第7期15卷 1687-1699页

作者： Abdelaali Rahmouni Abderrahim Boulanouar Younes El Rhaffari Mohammed Hraita Aziz Zaroual Yves Géraud Jamal Sebbani Abdellah rezzouk Bassem S.Nabawy Laboratory of Solid State Physics Department of PhysicsFaculty of Science Dhar El MahrazSidi Mohamed Ben Abdellah UniversityFezMorocco Laboratory of Applied Sciences National School of Applied SciencesAbdelmalek Essaadi UniversityAl HoceimaMorocco Laboratory of Civil Engineering and Environment Higher School of Technology of SaléMohammed V UniversityRabatMorocco Department of Physics Higher Normal SchoolMohammed V UniversityRabatMorocco Laboratory of Materials Nanotechnologies and EnvironmentFaculty of ScienceMohammed V UniversityRabatMorocco University of Lorraine ENSGUMR 7359-GeoRessourcesNancyFrance Mechanics and Materials Team Faculty of ScienceMohammed V UniversityRabatMorocco Geophysical Sciences Department National Research CentreCairoEgypt

It is essential to study the porosity,thermal conductivity,and P-wave velocity of calcarenites,as well as the anisotropy coefficients of the thermal conductivity and P-wave velocity,for civil engineering,and conservation and restoration of historical *** study focuses on measuring the thermal conductivity using the thermal conductivity scanning(TCS)technique and measuring the P-wave ve-locity using portable *** was applied for some dry and saturated calcarenite samples in the horizontal and vertical directions(parallel and perpendicular to the bedding plane,respectively).The calcarenites were selected from some historical monuments in *** physical properties were measured in the laboratory to find a reliable relationship between all of these *** a result of the statistical analysis of the obtained data,excellent linear relationships were observed between the porosity and both the thermal conductivity and *** relationships are characterized by relatively high coefficients of determination for the horizontal and vertical *** on the thermal conductivity and P-wave velocity values in these two directions,the anisotropy coefficients of these two properties were *** internal structure and the pore fabric of the calcarenite samples were delineated using scanning electron microscopy(SEM),while their chemical and mineral compositions were studied using the energy dispersive X-ray analysis(EDXA)and X-ray diffraction(XRD)techniques.

关键词： Moroccan historical monuments Calcarenite Thermal conductivity P-wave velocity Porosity Anisotropy coefficient Water saturation

Multiscale assessment of ground,aerial and satellite spectral data for monitoring wheat grain nitrogen content

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Information Processing in Agriculture 2023年第4期10卷 504-522页

作者： Joel Segarra Fatima Zahra rezzouk Nieves Aparicio Jon González-Torralba Iker Aranjuelo Adrian Gracia-Romero Jose Luis Araus Shawn C.Kefauver Integrative Crop Ecophysiology Group Plant Physiology SectionFaculty of BiologyUniversity of BarcelonaBarcelona 08028Spain AGROTECNIO(Center for Research in Agrotechnology) Lleida 251981Spain Agro-technological Institute of Castilla y León(ITACyL) Valladolid 47071Spain Grupo AN Tajonar 31192NavarreSpain Instituto de Agrobiotecnología(IdAB) CSIC-Gobierno de NavarraMutilva Baja 31192PamplonaNavarreSpain

Wheat grain quality characteristics have experienced increasing attention as a central factor affecting wheat end-use products quality and human ***,in the last decades a reduction in grain quality has been ***,it is central to develop efficient quality-related phenotyping *** this sense,one of the most relevant wheat features related to grain quality traits is grain nitrogen content,which is directly linked to grain protein content and monitorable with remote sensing ***,the relation between nitrogen fertilization and grain nitrogen content(protein)plays a central role in the sustainability of *** aiming to develop efficient phenotyping tools using remote sensing instruments and to advance towards a field-level efficient and sustainable monitoring of grain nitrogen status,this paper studies the efficacy of various sensors,multispectral and visible red-greenblue(RGB),at different scales,ground and unmanned aerial vehicle(UAV),and phenological stages(anthesis and grain filling)to estimate grain nitrogen *** models were calculated using vegetation indices at each sensing level,sensor type and phenological ***,this study explores the up-scalability of the best performing model to satellite level Sentinel-2 equivalent *** found that models built at the phenological stage of anthesis with UAV-level multispectral cameras using red-edge bands outperformed grain nitrogen content estimation(R2=0.42,RMSE=0.18%)in comparison with those models built with RGB imagery at ground and aerial level,as well as with those built with widely used ground-level multispectral *** also demonstrated the possibility to use UAV-built multispectral linear models at the satellite scale to determine grain nitrogen content effectively(R2=0.40,RMSE=0.29%)at actual wheat fields.

关键词： Wheat Remote sensing Sentinel-2 Grain nitrogen content Phenotyping

On the Regularity and Chaos of the Hydrogen Atom Subjected to External Fields

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International Journal of Modern Nonlinear Theory and Application 2018年第2期7卷 56-76页

作者： Jaouad Kharbach Walid Chatar Mohamed Benkhali Abdellah rezzouk Mohammed Ouazzani-Jamil Laboratoire de Physique du Solide Faculté des Sciences Dhar El Mahraz Université Sidi Mohamed Ben Abdellah Fès-Atlas Morocco Université Privée de Fès Laboratoire Systèmes et Environnements Durables Lot. Quaraouiyine Route Ain Chkef Fès Mo-rocco

In this paper, the integrable classical case of the Hydrogen atom subjected to three static external fields is investigated. The structuring and evolution of the real phase space are explored. The bifurcation diagram is found and the bifurcations of solutions are discussed. The periodic solutions and their associated periods for singular common-level sets of the first integrals of motion are explicitly described. Numerical investigations are performed for the integrable case by means of Poincaré surfaces of section and comparing them with nearby living nonintegrable solutions, all generic bifurcations that change the structure of the phase space are illustrated;the problem can exhibit regularity-chaos transition over a range of control parameters of system.

关键词： Hydrogen Atom Zeeman Effect Stark Effect Van Der Waals Interaction Hamiltonian System Integrability Bifurcation Chaos Poincaré Surfaces of Section

The Study on the Phase Structure of the Paul Trap System

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Applied Mathematics 2017年第4期8卷 525-536页

作者： Jaouad Kharbach Mohamed Benkhali Mohamed Benmalek Ahmed Sali Abdellah rezzouk Mohammed Ouazzani-Jamil Laboratoire de Physique du Solide Faculté des Sciences Dhar El Mahraz Université Sidi Mohamed Ben Abdellah Fès-Atlas Morocco Université Privée de Fès Laboratoire Systèmes et Environnements Durables Lot. Quaraouiyine Route Ain Chkef Fès Morocco

In this article, the classic dynamic of Paul trap problem is investigated. We give a complete description of the topological structure of Hamiltonian flows on the real phase space. Using the surgery’s theory of Fomenko Liouville tori, all generic bifurcations of the common level sets of the first integrals were described theoretically. We give also an explicit periodic solution for singular values of the first integrals. Numerical investigations are carried out for all generic bifurcations and we observe order-chaos transition when the critical value of a control parameter is varied.

关键词： Hamiltonian System Integrability Bifurcation Liouville Tori Periodic Solutions Poincaré Section Chaos

Crop phenotyping in a context of global change:What to measure and how to do it

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Journal of Integrative Plant Biology 2022年第2期64卷 592-618页

作者： Jose Luis Araus Shawn Carlisle Kefauver Omar Vergara-Díaz Adrian Gracia-Romero Fatima Zahra rezzouk Joel Segarra Maria Luisa Buchaillot Melissa Chang-Espino Thomas Vatter Rut Sanchez-Bragado JoséArmando Fernandez-Gallego Maria Dolores Serret Jordi Bort Integrative Crop Ecophysiology Group Plant Physiology SectionFaculty of BiologyUniversity of BarcelonaBarcelonaSpain AGROTECNIO Center LleidaSpain Plant Ecophysiology and Metabolism Lab ITQB NovaPlant Sciences DivisionOeirasPortugal Programa de Ingeniería Electrónica Facultad de IngenieríaUniversidad de IbaguéIbaguéColombia

High-throughput crop phenotyping,particularly under field conditions,is nowadays perceived as a key factor limiting crop genetic *** not only facilitates conventional breeding,but it is necessary to fully exploit the capabilities of molecular breeding,and it can be exploited to predict breeding targets for the years ahead at the regional level through more advanced simulation models and decision support *** terms of phenotyping,it is necessary to determined which selection traits are relevant in each situation,and which phenotyping tools/methods are available to assess such *** sensing methodologies are currently the most popular approaches,even when lab-based analyses are still relevant in many *** top of that,data processing and automation,together with machine learning/deep learning are contributing to the wide range of applications for *** review addresses spectral and red-green-blue sensing as the most popular remote sensing approaches,alongside stable isotope composition as an example of a lab-based tool,and root phenotyping,which represents one of the frontiers for field ***,we consider the two most promising forms of aerial platforms(unmanned aerial vehicle and satellites)and some of the emerging data-processing *** review includes three Boxes that examine specific case studies.

关键词： crop phenotyping deep learning models photosynthesis platforms remote sensing roots satellites sensors stable isotopes

Spontaneous Cholecystocutaneous Fistula of Anterior Abdominal Wall with Subcutaneous Gallstones: About a Rare Case and Review of the Literature

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Surgical Science 2014年第2期5卷 43-45页

作者： Khalid El Haoudi Pierlesky Elion Ossibi Salima rezzouk Mourad Oussaid Karim Ibn Majdoub Hassani Said Ait Laalim Imane Toughrai Khalid Mazaz Visceral Surgery Department HASSAN II University Hospital Fez Morocco

Spontaneous cholecystocutaneous fistula is a rare complication of chronic calculous cholecystitis, because currently gallstones are diagnosed and treated at an early stage. This occurrence is possible even if it seems actually to be rare. We report a case of spontaneous cholecystocutaneous fistula of Anterior Abdominal Wall with subcutaneous gallstones admitted in the medical oncology unit of HASSAN II University Hospital. An 64-year-old woman, presented with a large subcutaneous abscess in the right subcostal area with swelling. An abdominal computed tomography scan showed a subcutaneous gallstone and communication between the abscess and the gallbladder. Cholecystectomy was performed and the abdominal wall abscess was drained externally. This case report demonstrates that maintaining a high degree of suspicion of this rare entity is helpful in achieving correct preoperative diagnosis, and that computed tomography scan should be performed in all cases of unexplained abdominal wall suppuration.

关键词： Gallbladder Fistula Gallstones Abscess

Fasciitis on Abdominal Craniectomy Implantation

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Surgical Science 2014年第10期5卷 479-482页

作者： Pierlesky Elion Ossibi Salima rezzouk Ibrahima Berete KarimIbn Majdoub Imane Toughrai Said Ait Laalim Abdelmalek Ousadden Mohammed Chaoui El Faiz Khalid Mazaz Khalid Ait Taleb Visceral Surgery Department Hassan II University Hospital Fez Morocco Neurosurgery Department Hassan II University Hospital Fez Morocco

Necrotizing fasciitis is an infection of the skin and deep subcutaneous tissue. It is caused by bacteria (group A streptococcus), but may also be idiopathic ora secondary complication of surgery. We report a case of n... 详细信息

关键词： Fasciitis Craniectomy Abdominal Implantation