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Experimental Study of Heat Transfer in a Real Scale Building Incorporating PCM in the Air Layer of the Vertical Walls

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Journal of Power and Energy Engineering 2019年第5期7卷 14-25页

作者： Zahra Najam mustapha el alami Mostafa Najam Laboratory of Physical Materials Microelectronics Automatics and Heat Transfer (LPMMAT) Faculty of Sciences Hassan II University of Casablanca Casablanca Morocco

The purpose of this paper is to study the energy efficiency of a local living space exposed to solar radiation in the subtropical climate of Casablanca. The study was mainly focused on the contribution of a phase change material (PCM), inserted into a 7-cm thick air layer of a double brick wall, in two different locations. We note that the experimental study was conducted using two real-scale test cavities, located in the Faculty of Science Ain Chock-Casablanca. Two PCM mounting methods were used for the south and west walls, in order to test its energy efficiency as a storage and retrieval means of the solar flux coming from the outside. In the case of the southern wall, the PCM is put directly on the internal side of the outside part of the double wall (Case 1). For the west wall, the PCM is placed 1.2 cm away from the internal side of the outer part of the double wall (Case 2). The first result shows that the PCM placed to the wall allows storing the solar heat during the day and releasing it to the outside of the building at night. While in the second case, the PCM keeps the heat stored day and night.

关键词： Experimental Study Heat Transfer PCM Air Layer Real-Scale Building

A digital twin model-based approach to cost optimization of residential community microgrids

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Global Energy Interconnection 2024年第1期7卷 82-93页

作者： Mariem Dellaly Sondes Skander-mustapha Ilhem Slama-Belkhodja Université de Tunis el Manar Ecole Nationale d’Ingénieurs de TunisLR11ES15 Laboratoire de Systèmes Electriques1002TunisTunisie Université de Carthage Ecole Nationale d’Architecture et d’UrbanismeLaboratoire de Systèmes Electriques1002TunisTunisie

This paper presents a peer-to-peer community cost optimization approach based on a single-prosumer energy management *** objective is to optimize energy costs for prosumers in the community by enhancing the consumption *** study was conducted along two main *** first axis focuses on designing a digital twin for a residential community microgrid *** phase involves data collection,cleaning,exploration,and ***,it includes replicating the functionality of the real platform and validating the *** second axis involves the development of a novel approach that incorporates two distinct prosumer behaviors within the same community microgrid,while maintaining the concept of peer-to-peer energy *** without storage utilize their individual PV systems to fulfill their energy requirements and inject excess energy into a local ***,a single prosumer with a storage system actively engages in energy exchange to maximize the community’s *** is achieved by optimizing battery usage using a cost optimization *** proposed solution is validated using the developed digital twin.

关键词： Energy management system(EMS) Cost optimization Digital twin Photovoltaic systems Microgrid

Thermal Analysis of a Phase Change Material Based Heat Sink for Cooling Protruding electronic Chips

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Journal of Thermal Science 2009年第3期18卷 268-275页

作者： mustapha FARAJI Hamid el QARNIA EI Khadir LAKHAL Fluids Mechanic and Energetic Laboratory Automatic Environment and Transfer Process Laboratory Cadi Ayyad University Faculty of Sciences Semlalia Department of Physics

This work aims to numerically study the melting natural convection in a rectangular enclosure heated by three discreet protruding electronic chips. The beat sources generate heat at a constant and uniform volumetric rate. A part of the power generated in the heat sources is dissipated to a phase change material （PCM, n-eicosane with melting temperature, Tm = 36℃）. Numerical investigations were carded out in order to examine the effects of the plate thickness on the maximum temperature of electronic components, the percentage contribution of plate heat conduction on the total removed heat and temperature profiles in the plate. Con＇elations for the dimensionless secured working time （time to reach the threshold temperature, Tcr = 75℃） and the corresponding liquid fraction were derived.

关键词： Phase change material protruding electronic component natural convection

Interpolation in the Automorphism Group of a Polynomial Ring

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Algebra Colloquium 2020年第3期27卷 587-598页

作者： M'hammed el Kahoui Najoua Essamaoui mustapha Ouali Department of Mathematics Faculty of Sciences Semlalia Cadi Ayyad UniversityP.O.Box 2390MarrakeshMorocco

Let R be a commutative ring with unity and SA_(n)(R)be the group of volumepreserving automorphisms of the polynomial R-algebra R^([n]).Given a proper ideal a of R,we address in this paper the question of whether the canonical group homomorphism SA_(n)(R)→SA_(n)(R/α)is *** an application,we retrieve and generalize,in a unified way,several known results on residual coordinates in polynomial rings.

关键词： polynomial automorphism coordinate residual coordinate

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

Emotion processing in Parkinson's disease: a blood oxygenation level-dependent functional magnetic resonance imaging study

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Neural Regeneration Research 2019年第4期14卷 666-672页

作者： Mohammed Benzagmout Sa?d Boujraf Badreeddine alami Hassane Ali Amadou Halima el Hamdaoui Amine Bennani Mounir Jaafari Ismail Rammouz mustapha Maaroufi Rabia Magoul Driss Boussaoud Laboratory of Clinical Neuroscience Faculty of Medicine Department of Neurosurgery University Hospital of Fez Laboratory of Neuroendocrinology and Nutritional and Climatic Environment Faculty of Sciences Dhar El Mahraz Department of Biophysics and Clinical MRI Methods Faculty of Medicine Department of Radiology and Clinical Imaging University Hospital of Fez Department of Psychiatry University Hospital of Fez Aix Marseille Université INSERM INS Institut de Neurosciences des Systèmes

Parkinson's disease is a neurodegenerative disorder caused by loss of dopamine neurons in the substantia nigra pars compacta. Tremor, rigidity, and bradykinesia are the major symptoms of the disease. These motor impairments are often accompanied by affective and emotional dysfunctions which have been largely studied over the last decade. The aim of this study was to investigate emotional processing organization in the brain of patients with Parkinson's disease and to explore whether there are differences between recognition of different types of emotions in Parkinson's disease. We examined 18 patients with Parkinson's disease(8 men, 10 women) with no history of neurological or psychiatric comorbidities. All these patients underwent identical brain blood oxygenation level-dependent functional magnetic resonance imaging for emotion evaluation. Blood oxygenation level-dependent functional magnetic resonance imaging results revealed that the occipito-temporal cortices, insula, orbitofrontal cortex, basal ganglia, and parietal cortex which are involved in emotion processing, were activated during the functional control. Additionally, positive emotions activate larger volumes of the same anatomical entities than neutral and negative emotions. Results also revealed that Parkinson's disease associated with emotional disorders are increasingly recognized as disabling as classic motor symptoms. These findings help clinical physicians to recognize the emotional dysfunction of patients with Parkinson's disease.

关键词： Parkinson’s disease emotion processing Blood oxygenation level-dependent functional magnetic resonance imaging brain activation dopamine neural regeneration

Sliding mode approach applied to sensorless direct torque control of cage asynchronous motor via multi-level inverter

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Protection and Control of Modern Power Systems 2020年第1期5卷 166-175页

作者： Soukaina el Daoudi Loubna Lazrak mustapha Ait Lafkih Laboratory of Automatic Energy Conversion and MicroelectronicsFaculty of Sciences and TechnologySultan Moulay Slimane UniversityBeni MellalMorocco

To improve the robustness and performance of the dynamic response of a cage asynchronous motor,a direct torque control(DTC)based on sliding mode control(SMC)is adopted to replace traditional proportional-integral(PI)and hysteresis *** combination of the proposed strategy with sinusoidal pulse width modulation(SPWM)applied to a three-level neutral point clamped(NPC)inverter brings many advantages such as a reduction in harmonics,and precise and rapid tracking of the *** are performed for a three-level inverter with SM-DTC,a two-level inverter with SM-DTC and the three-level inverter with *** results show that the SM-DTC method achieves better performance in terms of reference tracking,while adoption of the threelevel inverter topology can effectively reduce the *** the SM-DTC to the three-level inverter presents the best solution for achieving efficient and robust *** addition,the use of a sliding mode speed estimator eliminates the mechanical sensor and this increases the reliability of the system.

关键词： Asynchronous cage motor Direct torque control Sinusoidal pulse width modulation Sliding mode control Speed estimator Three-level inverter

A lubricant boundary condition for a biological body lined by a thin heterogeneous biofilm

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International Journal of Biomathematics 2019年第1期12卷 43-69页

作者： mustapha el Jarroudi Riane Hajjami Aadil Lahrouz Moussa el Jarroudi Department of Mathematics Laboratory of Mathematics and Applications Abdelmalek Essaadi University TangierB.P.416Morocco Department of Environmental Sciences and Management Liege University ArionB-6700Belgium

We study the asymptotic behavior of an incompressible viscous fluid flow in a biological body lined by a thin biological film with a cellular microstructure,varying thickness,and a heterogeneous viscosity regulated by a time random *** ting the thickness of the film tend to zero,we derive an effective biological slip boundary condition on the boundary of the *** law relates the tangential fluxes to the tangential velocities via a proportional coefficient corresponding to the energy of some local *** law describes the ability of the biological film to function as a lubricant reducing friction at the wall of the *** tangential velocities are functions of the random trajectories of a finely concentrated biological particle.

关键词： Biological body incompressible viscous flow thin biofilm flow random structural evolution asymptotic analysis lubricant effective boundary condition

Wheat breeding for Hessian fly resistance at ICARDA

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The Crop Journal 2022年第6期10卷 1528-1535页

作者： Wuletaw Tadesse Samira el-Hanafi Karim el-Fakhouri Imane Imseg Fatima Ezzahra Rachdad Zakaria el-Gataa mustapha el Bouhssini International Center for Agricultural Research in the Dry Areas(ICARDA) P.O.Box 6299RabatMorocco Biodiversity and Plant Sciences Program AbroBioSciencesMohammed VI Polytechnic UniversityLot 660-Hay Moulay Rachid43150 Ben GuerirMorocco

Hessian fly(HF),Mayetiola destructor(Say)is an important pest of wheat in North Africa,North America,Southern Europe,Northern Kazakhstan,Northwestern China,and New *** can cause up to 30%yield losses and sometimes can result in complete crop failure if infestation coincides with young stage of the wheat *** to-date have shown the availability of genetic diversity in the wheat genetic resources(landraces,wild relatives,cultivars,etc.)for resistance to Hessian *** 37 resistance genes have been reported from these wheat genetic resources for resistance to Hessian fly,of which,some have been deployed singly or in combination in the breeding programs to develop high yielding varieties with resistance to *** of resistant varieties in different agro-ecologies with other integrated management measures plays key role for the control of *** paper summarizes the importance,life cycle,mechanisms of resistance,gene mining,and wheat breeding efforts for HF resistance.

关键词： Breeding Gene introgression Hessian fly Resistance