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Application of Electrical Tomography to Put in Evidence the Thickness and Structure of the Filling of Dayet Iffer (Middle Atlas, Morocco)

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International Journal of Geosciences 2020年第4期11卷 170-183页

作者： Bouchra Lemdeghri Alaoui Abdennasser Baali Mohamed Chibout Anasse Benslimane fatima zahra faqihi Laboratory “Geosystem Environment and Sustainable Development” Faculty of Sciences Dhar El Mahraz University Sidi Mohamed Ben Abdellah Fez Morocco Laboratory “Géodynamics and Natural Ressources” Faculty of Sciences Dhar El Mahraz University Sidi Mohamed Ben Abdellah Fez Morocco

The Dayet Iffer belongs to the Dayets of tectono-karst origin of the Northern Middle Atlas. After its watershed genesis of middle altitude during the Quaternary, two lacustrine formations were deposited on the surface while other thick formations exist in depth. The detailed sedimentological study of the soltanian and holocene lithological sections on the surface and the 14C datings helped recognize part of the history of the watershed. The geophysical study allowed to detect the thickness of the superficial geological formations as well as the various geological phenomena (tectonic and/or karst) that affected them from the genesis to the present. The current shape of the watershed where the Dayet Iffer exists is only the result of an evolution where sedimentary, tectonic and karst phenomena interfere. The tomography obtained with Res2DInv software, performed for the first time at the Dayet Iffer, reveals the presence of three ranges which can be interpreted as three resistive, intermediate and conductive zones with a large set of faults. These results helped determine the thickness (over 160 m) of the sedimentary filling. This shows that the hydrological behavior of the Dayet Iffer takes into account both horizontal flows at the stratification and/or karstic joints and the movement of sub-vertical fractures.

关键词： Electrical Tomography Resistivity Lacustrine Sediments Dayet Quaternary Middle Atlas

Geophysical Contribution to the Determination of the Limit between Laayoune and Foum El Oued Aquifers, Origin of Supply Sources of Oued Sakia El Hamra, Laayoune Province, Morocco

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International Journal of Geosciences 2019年第11期10卷 1008-1035页

作者： Mohamed Chibout Anasse Benslimane Mohamed El Mokhtar fatima zahra faqihi Sidi Mokhtar El Kanti Ahmed Ntarmouchant Laboratory of Geodynamics and Natural Resources (LGRN) Faculty of Sciences Dhar Mahraz Sidi Mohamed Ben Abdellah University Fez Morocco Laboratory of Geosciences and Natural Resources Faculty of Sciences University Ibn Tofail Kenitra Morocco. AFRICA GEO-SERVICES Company 33 Offices Al Manar Street Abd Elkarim Khattabi Fez VN Morocco Hydraulic Basin Agency of Sakia El Hamra and Oued Ed-Dahab Administrative District Laayoune Morocco

Laayoune and the Foum El Oued aquifers are in hydraulic communication only at the level of Oued Saguia El Hamra. The present study has accordingly made use of all the hydrogeological, hydrological, geological and geophysical data that preceded the watershed of Oued Saguia El Hamra in its downstream part. These data are by no means omplementary with the objective of having a better understanding of the boundary line between Laayoune and Foum El Oued aquifers and the origin of feeding the sources of Oued Saguia El Hamra. This study will focus only on the previous geophysical studies where a reinterpretation of electrical soundings has proved useful as a result of the recent well-logging results. It makes it possible to highlight the presence of a significant rise in the truncated marly substratum of Oued Saguia El Hamra and depressions (left and right banks) which could correspond to stream channels or depressed areas. At the level of the Wadi bed, there has been a regular immersion of the conductive level roofs from east to west towards Foum El Oued favoring the flow of wastewater from the zone and spraying the brackish water sources towards the groundwater of Foum El Oued. In the light of the reinterpretation of electric polls, plus as well as the geophysical surveys by electrical tomography and high definition made at the right and left banks of the Oueed Saguia El-Hamra, it was possible to verify the existence of dry ridge separating the two webs of Laayoune and Foum El Oued and stream channels or depressed areas of the left bank for drainage of brackish water to sources located along Oued Saguia El Hamra. The true resistivity models tomography profiles confirm the presence of the backbone at the left and right banks and the graben of the left bank for underground water drainage of the web Laayoune to sources welling the river Saguia El Hamra. They reveal the presence of a quaternary plio-cover (coastal platform Moghrebian) as being heterogeneous and affected by m

关键词： Laayoun and Faum Al Oued Aquifers Ridge Limit Wastewater Brackish Wa-ter Marl Bedrock Vertical Electrical Sounding (SEV) Electrical Tomography (ETR)

Geophysical Study by Electrical Soundings of the Tartar Aquifer Unit, Boujdour Region, Morocco

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International Journal of Geosciences 2020年第3期11卷 58-83页

作者： Mohamed Chibout Anasse Benslimane Mohamed El Mokhtar Sidi Mokhtar El Kanti fatima zahra faqihi Lahcen Gourari Geodynamics Laboratory of Natural Resources (LGRN) Dhar Mahraz Faculty of Science Sidi Mohamed Ben Abdellah University Fez Morocco Geosciences Laboratory of Natural Resources (LGRN) Hydroinformatics Team Faculty of Science Ibn Tofail University Maamora Campus Kenitra Morocco AFRICA GEO-SERVICES Society Fez Morocco Sakia El Hamra and Oued Eddahab Hydraulic Basin Agency Laayoune Morocco

The Tartar aquifer unit, is located at the SSO of the city of Boujdour, at a distance of nearly 86 km, and crossed (in its western part) by the National Road N1 connecting the towns of Boujdour and Lagouira passing through the vicinity of the city of Dakhla (PK40). It is exploited by rural settlements for domestic use (especially the inhabitants of fishing villages) and livestock watering, only through wells named Khtout Hobia (IRE 126/124) and Hassi Tartar known as Khtout Trayh (IRE 104/124). These wells have been tracked by a piezometric groundwater table and from 2011 to the present day. The interpretation of the electrical soundings in AB ≤ 2000 m allowed to differentiate the presence of two families of electrical soundings A and B, to establish the resistivity maps in AB = 200, 300 and 400 ihm⋅m with qualitative aspects, to draw up the map of the isohypses of the roof of the intermediate Dt1 representing the impermeable floor of the aquifer and to highlight two types of discontinuities;electrical discontinuities corresponding to lateral facies changes (limit of erosion surfaces) separating the families A and B of electrical soundings and those corresponding to syn-sedimentary faults which structured the formations into horsts and grabens. The lithological sections of the existing water points and that of oil well 43-1 allowed the geological identification of the geoelectric layers highlighted by the electrical soundings diagrams. As a result, the sandstone and lumachelic formations constituting the aquifer are of Moghrebian-Pleistocene age represented by the resistant R (Family A), sometimes grouping, in its basal part, sandstone levels of the Miocene roof (Family B). These formations lie directly on the Miocene sandy marls represented by the intermediate Dt1. For the present work, we will focus only on the transverse geoelectric cross-section TA, with an SW-NE orientation, which characterizes all the longitudinal sections established following the correla

关键词： Tartar Aquifer Unit Vertical Electrical Soundings Resistivity

Comparative Study of Entanglement and Wigner Function for Multi-Qubit GHZ-Squeezed State

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Communications in Theoretical Physics 2017年第12期67卷 729-734页

作者： fatima-zahra Siyouri Laboratoire de Physique Thèorique Département de Physique Faculté des Sciences Université Mohammed Ⅴ-Agdal

In this paper we address the possibility of using the Wigner function to capture the quantum entanglement present in a multi-qubit system. For that purpose, we calculate both the degree of entanglement and the Wigner function for mixed tripartite squeezed states of Greenberger–Horne–Zeilinger(GHZ) type then we compare their behaviors. We show that the role of Wigner function in detecting and quantifying bipartite quantum correlation [Int. J. Mod. Phys. B30(2016) 1650187] may be generalized to the multipartite case.

关键词： negativity of Wigner function entanglement squeezed states tripartite GHZ non-classicality

Development and assessment of algorithms for DEM-LES simulations of fluidized bed

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Particuology 2023年第12期83卷 241-257页

作者： fatima Ez-zahra El Hamra Radouan Boukharfane UM6P College of Computing Mohammed Ⅵ Polytechnic University(UM6P)BenguerirMorocco

The use of high-fidelity Discrete Element Method(DEM)coupled with Computational Fluid Dynamics(CFD)for particle-scale simulations demands extensive simulation times and restricts application to small particulate ***-CFD simulations require good performance and satisfactory scalability on high-performance computing platforms.A reliable parallel computing strategy must be developed to calculate the collision forces,since collisions can occur between particles that are not on the same processor,or even across processors whose domains are *** present paper describes a parallelization technique and a numerical verification study based on a number of tests that allow for the assessment of the numerical performance of DEM used in conjunction with Large-Eddy Simulation(LES)to model dense flows in fluidized *** fluid phase is computed through solving the volume-averaged four-way coupling Navier-Stokes equations,in which the Smagorinsky sub-grid scale tensor model is ***,the performance of Sub-Grid Scale(SGS)turbulence models applied to Fluidized Bed Reactor(FBR)configurations has been assessed and *** developed numerical solver represents an interesting combination of techniques that work well for the present purpose of studying particle formation in fluidized beds.

关键词： DEM-LES Fluidized bed Computational efficiency Numerical accuracy

Adaptive Backstepping Control Design for Semi-Active Suspension of Half-Vehicle With Magnetorheological Damper

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IEEE/CAA Journal of Automatica Sinica 2021年第3期8卷 582-596页

作者： Khalid El Majdoub Fouad Giri fatima-zahra Chaoui Department of Electrical Engineering University Hassan IIFaculty of Science and TechnologyMohammedia 20030Morocco Department of Electrical Engineering University de Caen NormandieCaen 14032France Department of Electrical Engineering University Mohamed VRabat 10000Morocco

This paper investigates the problem of controlling half-vehicle semi-active suspension system involving a magnetorheological(MR)*** features a hysteretic behavior that is presently captured through the nonlinear Bouc-Wen *** control objective is to regulate well the heave and the pitch motions of the chassis despite the road *** difficulty of the control problem lies in the nonlinearity of the system model,the uncertainty of some of its parameters,and the inaccessibility to measurements of the hysteresis internal state *** Lyapunov control design tools,we design two observers to get online estimates of the hysteresis internal states and a stabilizing adaptive state-feedback *** whole adaptive controller is formally shown to meet the desired control *** theoretical result is confirmed by several simulations demonstrating the supremacy of the latter compared to the skyhook control and passive suspension.

关键词： Adaptive control backstepping control Bouc-Wen model half vehicle model magnetorheological(MR)damper semiactive suspension skyhook control state observation

Generation of Different Classes of Multipartite Entanglement Using Cavity-QED

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Communications in Theoretical Physics 2018年第2期69卷 131-136页

作者： Mustapha Ziane Rachid El Guerbouz fatima-zahra Siyouri Morad El Baz Equipe Sciences de la Matière et du Rayonnement Département de Physique Faculté des sciences Université Mohammed V Av.Ibn Battouta

Using a system of cavity quantum electrodynamics （QED） we present two schemes for multipartite entan- glement generation. In the first scheme, a three-level atom is interacting with three cavities successively. In the second one, two three-level atoms are interacted with a coherent optical cavity. These protocols allow us to generate the six c/asses of tripartite entanglement （GHZ, W, A-B-C, AB-C, C-AB, and B-AC class states） by controling the interaction time between atoms and cavities. Moreover, they allow us to generate entanglement between the cavity fields degrees of freedom （from the first scheme）, and a mixed entanglement between the cavity field degrees of freedom and the atomic degrees of freedom.

关键词： entanglement coherent states cavity QE-D GHZ states W states

Apatite Fission-Track Datings on Hercynian Granites from Rehamna and Jebilet Massifs(Western Meseta,Morocco):Paleogeographic Implications and Interpretation of AFT Age Discrepancies

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地学前缘 2009年第S1期16卷 217-218页

作者： Omar Saddiqi fatima zahra EL Haimer Hassan Ⅱ University CasablancaMoroccoFaculty of Sciences Laboratoire Géosciences Faculté des SciencesUniversite Hassan Ⅱ An Chock

This work is based on apatite fission-track analysis of samples(mostly granites)from the basement of the Cretaceous-Tertiary Phosphate and Ganntour Plateaus, exposed in the Jebilet and Rehamna massifs (Western Meseta,... 详细信息

关键词： thermochronology fission track apatite exhumation Rehamna Jebilet Western Meseta Morocco

Mechanical and Thermal Properties of Polypropylene Reinforced with Almond Shells Particles： Impact of Chemical Treatments

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Journal of Bionic Engineering 2015年第3期12卷 483-494页

作者： fatima zahra El Mechtali Hamid Essabir Souad Nekhlaoui Mohammed Ouadi Bensalah Mohammad Jawaid Rachid Bouhfid AbouEIkacem Qaiss Laboratory of Mechanic and Materials (LMM) Mohammed V-Rabat University Faculty of Science Rabat Morocco Moroccan Foundation for Advanced Science Innovation and Research (MAScIR) Institute of Nanomaterials and Nanotechnology (NANOTECH) Laboratory of Polymer Processing Rabat Morocco Laboratory of Mechanics in Processes Energy and Environment National School of Applied Sciences Ibn Zohr University Agadir Morocco Department of Biocomposite Technology Institute of Tropical Forestry and Forest Products (INTROP) Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia

Polypropylene （PP） matrix composites reinforced with chemically treated Almond Shell （AS） particles with and without compatibilizer （PP-g-MA） was prepared by a twin-screw extrusion at loading of 20 wt.% AS particles. Two types of chemical treatments （alkali treatment with sodium hydroxide and etherification with dodecane bromide） of the particles were carried out to improve the interface adhesion between particles and PP matrix. Results show that chemical modifications of AS particles affect the mechanical and viscoelastic properties of AS/PP composites. The composites reinforced with alkali treated particles and the compatibilized matrix lead to a notable increase in the Young＇s modulus （14%） compared to the composites with untreated AS particles. The ductility of composite was also evaluated by the yield strain, and results show a notable increase （31%） compared to that of composites with untreated particles. The thermal stability increased with the use of etherification （385 ℃）, with gains in the temperature up to 23 ℃ compared to neat PP （362 ℃）. The achieved results show that the AS/PP composites can be used in several applications. A thermoplastic matrix compsite mixed with treated AS particles appears to be a good alternative to obtain environmentally friendly products.

关键词： PP AS chemical treatment composite extrusion injection