تجاوز إلى المحتوى الرئيسي
logo
  • عربية
  • English
Login الرؤية الليلية
  • الإدارة العليا
    • مكتب مدير الجامعة
    • نشأة الجامعة
    • الرؤية والرسالة والأهداف
    • الهيكل الإداري
  • الوكالات
    • وكالة الجامعة
    • وكالة الشؤون التعليمية والاكاديمية
    • وكالة التطوير والجودة
    • وكالة الدراسات العليا والبحث العلمي
    • وكالة الجامعة للفروع
    • وكالة الجامعة لشؤون الطالبات
  • العمادات
    • عمادة شؤون القبول والتسجيل
    • عمادة السنة التحضيرية
    • عمادة البحث العلمي
    • عمادة التطوير والجودة
    • عمادة الدراسات العليا
    • عمادة الموارد البشرية
    • عمادة تقنية المعلومات والتعليم عن بعد
    • عمادة شؤون المكتبات
    • عمادة خدمة المجتمع والتعليم المستمر
    • عمادة شؤون الطلاب
    • معهد البحوث والخدمات الاستشارية
  • المركز الإعلامي
    • مركز الأخبار
    • الملف الصحفي
    • المطبوعات
    • صحيفة جامعتي
    • ألبوم الصور
    • ألبوم الفيديوهات
    • الفعاليات
  • مبادرات ومراكز
    • مركز المعلومات الإحصائية
    • حاضنة الأعمال
    • مركز الوثائق والمحفوظات
    • مركز تطوير التعليم الجامعي
    • المجلس العلمي
    • معرفة
  • المكتبة
    • مكتبات الجامعة
    • المكتبة الرقمية السعودية
  • القبول والتسجيل
  • عربية
  • English

Social

  •  
  •  
  •  
  •  
  •  
  •  
  •  
الرئيسية

مواقع أعضاء هيئة التدريس

  • الموقع الرئيسي للجامعة
  • أعضاء هيئة التدريس
  • الخدمات الإلكترونية
    • خدمات الطلاب
    • خدمات أعضاء هيئة التدريس
    • خدمات الموظفين
    • خدمات الزوار
    • بوابة الخدمات الإلكترونية
  • اتصل بنا
    • نموذج التواصل
    • أرقام هامة
    • خرائط الوصول

Breadcrumb

  1. الرئيسية /
  2. أعضاء هيئة التدريس /

أ.د.محمد الامجد بن يوسف . بوعزيزي

PhD أستاذ قسم الهندسة الميكانيكية كلية الهندسة بالخرج
  • الخرج
  • 011-588-8246
  • my.bouazizi@psau.edu.sa
  • السيرة الذاتية
  • الأبحاث العلمية

مهام ومسؤوليات

  • 2020 – 2023 (International Collaboration: Saudi Arabia-France) 1- Director of the International Collaboration Research Capability Project funded by Research and Development Office, Ministry of Education – Saudi Arabia. Title: Traceable reference software for a real surface texture metrology on 3D objects, In process since February, 2020. 2- Principal Investigator (PI) of the Research Group in Mechanical engineering funded by the Deanship of Scientific Research, PSAU-Saudi Arabia. Title: Theoretical modeling of the magneto caloric properties of some perovskite compounds in view to optimizing their application in magnetic refrigeration technology, December, 2020. 3- Member at the American Society of Mechanical Engineers (ASME), October, 2020. Year 2019 1- Member in the Research Multi-Physics Lab: Quantum Modeling and Mechanical Eng. Design, Tunisia. 2-Principal Investigator (PI) of the Research Group in Mechanical engineering funded by the Deanship of Scientific Research, PSAU – Saudi Arabia. Title: Effect of A-TIG elaborated flux paste on mechanical properties and corrosion behavior of stainless steel (Experimental and numerical simulation studies). Finished December, 2019. 3-Co- Investigator (CI) of the Research Group in Mechanical engineering funded by the Deanship of Scientific Research, PSAU –Saudi Arabia. Title: Preparation and electromechanical characterisation of Novel Anode Perovskite Materials for Application in solid in application in solid oxide fuel cells. Finished December, 2019. Year 2017 1- Full Professor in Mechanical Engineering, College of Engineering at Alkharj- PSAU, Saudi Arabia. 2- Principal Investigator of a research project and Director of the Research Group of Mechanical Eng., College of Engineering PSAU, Saudi Arabia. Year 2014 1- Associate Professor in Mechanical Engineering, Mechanical engineering Department in the College of Engineering at Alkharj- PSAU), Saudi Arabia. 2- Director of Research Unit at the Preparatory Engineering Institute of Nabeul, Tunisia. 3- Member at The American Society of Mechanical Engineers ( ASME),October2014.April, 2021 – 2 – M. Lamjed. BOUAZIZI Year 2012

الأبحاث العلمية

  • [ART 1] T. DABBABI, S. HCINI, B. ALZAHRANI, H. RAHMOUNI, A. MALLAH, E. DHAHRI, and M.-L. BOUAZIZI, Investigations of microstructural and impedance spectroscopic properties of Mg0.5Co0.5Fe1.6Al0.4O4 ferrite prepared using sol–gel method, Journal Mater Sci: Mater Electron, https://doi.org/10.1007/s10854-021-05887-6 , Online: March, 2021.
  • [ART 2] Y. AREZKI, R. SU, V. HEIKKINEN,[...], M.-L. BOUAZIZI, R. LEACH, and H. NOUIRA, Traceable Reference Full Metrology Chain for Innovative Aspheric and Freeform Optical Surfaces Accurate at the Nano meter Level, Sensor, Volume 21, Issue: 4, Pages: 1-17, Published: February, 2021.
  • [ART 3] F. ZEMZEMI, H. KHOCHTALI, W. BENSALEM,B. ALZAHRANI, and M.-L. BOUAZIZI, Analytical multi-physics model of microstructure changes in hard turning of AISI 52100 steel: prediction of thicknesses of white and dark layers,International Journal of Advanced Manufacturing Technology, Volume 112, Issue: 9-10, Pages: 2755-2771, Published: February, 2021.
  • [ART 4] M. NASRI, J. KHELIFI, H. ROBEI, and M.-L. BOUAZIZI, The Impact of Disorder on the Disappearance of Metamagnetic Behavior and Enhancement of Temperature Coefficient of Resistivity for (La1-xNdx)(2/3)(Ca1-ySry)(1/3)MnO3 Ceramics, Journal of low temperature Physics, Volume 202, Issue: 1-2, Pages: 175-184, Published: January, 2021.
  • [ART 5] B. ALZAHRANI, A. GONUL, S. HCINI, and M.-L. BOUAZIZI, Microstructural Analysis, Magnetic Properties, and Critical Behavior of La(0.7)Ba(0.15)Sr(0.15)CoO(3)Perovskite, Journal of Superconductivity and Novel Magnetism, Volume 34, Issue: 2, Pages: 507-518, Published: February, 2021.
  • [ART 6] M. NASRI, J. KHELIFI, S. HCINI, H. ALROBEI, E. DHAHRI, and M.-L. BOUAZIZI, Modeling of Magnetic and Magneto caloric Properties by the Molecular Mean Field Theory in La(0.6)Sr(0.4)Mn(0.9)V(0.1)O(3)Oxide, Journal of Superconductivity and Novel Magnetism, Volume 34, Issue: 1, Pages: 143-147, Published: January, 2021.
  • [ART 7] S. MNEFGUI, A. BEN HSSINE, M.-L. BOUAZIZI, and A. DHAHRI, Critical Behavior and Its Correlation with Magneto-Electrical Properties in La(0.47)Ln(0.2)Pb(0.33)MnO(3)(Ln = Y and Eu) Polycrystalline, Journal of low temperature Physics, Volume 201, Issue: 3-4, Pages: 500-514, Published: November, 2020.
  • [ART 8] S. HCINI, M. HSINI, H. ROBEI, M.-L. BOUAZIZI and M. BOUDARD, Structural Analysis and Theoretical Investigations of the Magneto caloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route, Journal of Superconductivity and Novel Magnetism, Volume 33, Issue: 11, Pages: 3597-3605, Published: November, 2020.
  • [ART 9] F. HCINI, S. HCINI, B. ALZAHRANI, S. ZEMNI and M.-L. BOUAZIZI, Effects of sintering temperature on structural, infrared, magnetic and electrical properties of Cd(0.5)Zn(0.5)FeCrO(4)ferrites prepared by sol-gel route, Journal of Materials Science-Materials in Electronics, Volume 31, Issue: 17, Pages: 14986-14997, Published: September, 2020.
  • [ART 10] S. HCINI, F. HCINI, M.-L. BOUAZIZI and S. ZEMNI, Correlation between magnetic and electrical properties of La0.7Ba0.15Ag0.15MnO3 manganite prepared by sol gel method,Applied Physics A-Materials Science & Processing, Volume 126, Issue: 7, Pages:1-10, Published: Jun, 2020.
  • [ART 11] N. MECHI, A. MALLAH, S. HCINI, M.-L. BOUAZIZI, M. BOUDARD and A. DHAHRI, Effects of Sintering Temperature on Microstructural, Magnetic, and Impedance Spectroscopic Properties of Ni0.4Cd0.3Zn0.3Fe2O4 Ferrites, Volume: 33, Issue: 5, Journal of superconductivity and novel magnetism, Pages: 1547-1557, Published: May, 2020.
  • [ART 12] F. HCINI, S. HCINI, B. ALZAHRANI, S. ZEMNI, and M.-L. BOUAZIZI, Effect of Cr substitution on structural, magnetic and impedance spectroscopic properties of Cd0.5 Zn0.5 Fe2-xCrxO4 ferrites, (2020) 126:362, Volume: 126, Issue: 5, Applied Physics A, Materials Science and Processing, Pages:362-375, Published: April, 2020.
  • [ART 13] F. ALRESHEEEDI, S. HCINI, M.-L. BOUAZIZI, M. BOUDARD, A. DHAHRI, Synthesis and study of impendence spectroscopy properties of La0.6Ca0.2Na0.2MnO3 manganite perovskite prepared using sol-gel method, Journal of Materials Science: Materials in Electronics, Published: April, 2020.
  • [ART 14] B. ALZAHRANI, S. HCINI, S. MNEFGUI, A. DHAHRI and M.-L. BOUAZIZI, Sintering temperature effects on the impedance spectroscopy properties of Nd0.67Pb0.33Mn0.9Al0.1O3 perovskites, Phase Transitions A Multinational Journal, Published: March, 2020.
  • [ART 15] B. ALZAHRANI, M. HCINI, S. HCINI, M. BOUDARD, A. DHAHRI, M.-L. BOUAZIZI, Study of the Magnetocaloric Effect by Means of Theoretical Models in La0.6Ca0.2Ca0.2Na0.2MnO3 Manganite Compound, Journal of Low Temperature Physics, Published: March, 2020.
  • [ART 16] S. HCINI, R. CHARGUIYA, A. DHAHRI, and M.-L. BOUAZIZI, Structural Analysis, Magnetocaloric effect, and Critical Exponents for La0.6Sr0.2MnO3 Manganite, Journal of Superconductivity and Novel Magnetism, (2019) 32:2571-2578. Volume: 32, Issue: 8, Pages: 2571-2578, Published: August, 2019.
  • [ART 17] H. S. S. HCINI, M. BOUDARD, A. DHAHRI, S. ZEMNI, and M.-L. BOUAZIZI, Magnetocaloric effect study by means of theoretical models and spontaneous magnetization determination in Ni0.4Mg0.3Cu0.3Fe2O4 ferrite, Materials Research Express, 6 (2019) 066108. Volume: 6 Issue: 6, Article Number: 066108, Published: June, 2019.
  • [ART 18] S. HCINI, N. KOUKI, R. AL DAWAS, and M.-L. BOUAZIZI, Microstructural, Magnetic, Magnetocaloric, and Electrical Properties of Ni0.4Mg0.3Cu0.3Fe2O4 Ferrite Prepared Using Sol-Gel Method, Journal of Superconductivity and Novel Magnetism, Volume: 32, Issue: 4, Pages:1085-1094, Published: April, 2019 .
  • [ART 19] K. TOUILEB, A. HEDHIBI, R. DJOUDJOU, A. OUIS, and M.-L. BOUAZIZI, Mixing Design for ATIG Morphology and Microstructure Study of 316L Stainless Steel, Engineering Technology & Applied Science Research, Volume: 9, Issue: 2, Pages: 3990-3997, Published: April 2019.
  • [ART 20] S. HCINI, A. DHAHRI, S. ZEMNI and M.-L. BOUAZIZI, Structural, Magnetic and Magnetocaloric properties, and Analysis of MCE using the mean- field theory of Mg-Co ferrite with Ni substitution, Journal of Materials Science: Materials in Electronics, 30 (2019) Volume: 30, Issue: 6, Pages:6127-6138, Published: March, 2019.
  • [ART 21] S. HCINI, N. KOUKI, A. OMRI, A. DHAHRI, and M.-L. BOUAZIZI, Effect of Sintering temperature on Structural, Magnetic, Magnetocaloric and critical behaviours of Ni-Cd-Zn ferrites prepared using sol gel method, Journal of Magnetism and Magnetic Materials, Volume: 464, Pages: 91-102, Published: October, 2018.
  • [ART 22] HDHIBI, K. TOUILEB, R. DJOUDJOU, A. OUIS, M.-L. BOUAZIZI , and J. CHAKHARI, Effect of single oxide fluxes on morphology and mechanical properties of ATIG on 316 L Austenitic stainless steel welds, Journal of Engineering Technology and Applied Science Research, Volume: 8, Issue: 3, Pages: 3064-3072, June, 2018.
  • [ART 23] E. AL ARFAJ, S. HCINI, A. MALLAH, M.-H. DHAOU and M.-L. BOUAZIZI, Effect of Co substitution on the Microstructural, Infrared, and Electrical Properties of Mg0.6-xCo xZn0.4 Fe2O4 Ferrites, Journal of Superconductivity and Novel Magnetism, Volume: 31, Issue: 12, Pages: 4107-4116, Published: December, 2018.
  • [ART 24] S. HCINI, A. OMRI, M. BOUDARD, M.-L. BOUAZIZI, A. DHAHRI, K. TOUILEB, Microstructural, magnetic and electrical properties of Zn0.4M0.3 Co0.3 Fe2O4 (M=Ni and Cu) ferrites synthesized by sol-gel method, Journal of Materials Science: Materials in Electronics, (2018), Volume: 29, Issue: 8- Pages: 6879-6891, Published: April, 2018.
  • [ART 25] N. MECHI, B. ALZAHRANI, M. BOUDARD, M.-L. BOUAZIZI, A. DHAHRI, Correlation between magnetocaloric and electrical properties based on phenomenological models in La 0.47 Pr0.33 Mn O3, Phase Transitions Journal, (2018), Volume: 91, Issue: 6, Pages: 559-572, Published: February, 2018.
  • [ART 26] M. HCINI, N. HAMDAOUI, S. HCINI, M.-L. BOUAZIZI, S. ZEMNI, L. BEJI, Correlation between magnetocaloric and electrical properties based on phenomenological models in La 0.47 Pr0.33 Mn O3, Phase Transitions Journal, (2018), Volume: 91, Issue: 6, Pages: 559-572, Published: January, 2018.
  • [ART 27] R. LAJILI, O. BAREILLE, M.-L. BOUAZIZI, M. ICHCHOU, N. BOUHADDI, Composite beam identification using a variant of the inhomogeneous wave correlation method in presence of uncertainties, Engineering Computations, (2018), Volume: 35, Issue: 6, Pages: 2126-2164, Published: April, 2018.
  • [ART 28] M. HCINI, N. HAMDAOUII, S. HCINI, M.-L. BOUAZIZI, Effect of iron doping at Mn-Site on complex impedance spectroscopy properties of Nd0.67 Ba0.33 MnO3 perovskite, Phase Transitions, Volume: 91, Issue: 3, Pages: 316-331, Published: January, 2018.
  • [ART 29] M.-H. DHAOU, S. HCINI, A. MALLAH, M.-L. BOUAZIZI, A. JEMNI, Structural and complex impedance spectroscopic studies of Ni0.5 Mg0.3 Cu0.2 Fe2 O4 ferrite nanoparticle, Applied Physics A: Materials Science and Processing, Volume: 123, Issue: 1, Number: 123:8, Published: January, 2017.
  • [ART 30] S. HCINI, A. SELMI, H. RAHMOUNI, A. OMRI, M.-L. BOUAZIZI, Structural, dielectric and complex impedance properties of T0.6 Co0.4 Fe2O4 (T=Ni, Mg) ferrite nanoparticles prepared by sol gel method” Ceramics International, (2017), Volume: 43, Pages: 2529-2536, Published: February, 2017..
  • [ART 31] A. BEN HASSINE, A. DAHRI, M.-L. BOUAZIZI, M. OUMEZZINE, E. K. HLIL, Effect of trivalent rare earth doping on magnetic and magnetocaloric properties of La0.47 (Y, Eu)0.2 Pb0.33 Mn O3 manganites, Ceramics International, (2017), Volume: 43, Pages:1390-1393, Published: January, 2017
  • [ART 32] M.-L. BOUAZIZI, Optimisation of targeted energy transfer using multiple linear and nonlinear absorbers, International Journal of Current Engineering and Technology, E-ISSN 2277 - 4106, P-ISSN2347 – 516, Published: March, 2017.
  • [ART 33] A. BEN HASSINE, S. HCINI, A. DHAHRI, M.-L. BOUAZIZI, and M. OUMEZZINE, Critical Behaviours near the paramagnetic-ferromagnetic phase transitions of La0.47 Eu0.2 Pb0.33 MnO3 and La0.47 Y0.2 Pb 0.33 Mn O3 perovskites, Journal of Molecular Structure, (2017), Volume: 1142, Pages:102-109, Published: August, 2017.
  • [ART 34] A. SELMI, S. HCINI, H. RAHMOUNI, and M.-L. BOUAZIZI, Synthesis, structural and Complex impedance spectroscopy studies of Ni0.4 Co0.4 Mg0.2 Fe2O4 Spinel ferrite, Phase Transitions, (2017), Volume: 90, Issue: 2, Pages:942-954, Published: June, 2017
  • [ART 35] D. TLILI, N. HAMDAOUI, S. HCINI, M.-L. BOUAZIZI, S. ZEMNI, Above room temperature complex impedance analysis of properties of La0.33 Sr0.67 Mn0.33 Ti0.67 O3+/-pervovskite, Phase Transitions, (2017), Volume: 90, Issue: 6, Pages: 644-652, Published: May, 2017.
  • [ART 36] A. DHAHRI, S. HCINI, A. OMRI, M.-L. BOUAZIZI, Effect of 20% Cr-doping on structural and electrical properties of La0.67 Ca 0.33 Mn O3 perovskite, Journal of Alloys and Compounds, (2016) Volume: 687, Issue: 6, Pages:521-528, Published: 2016.
  • [ART 37] A. BEN HASSINE, A. DAHRI, M.-L. BOUAZIZI, M. OUMEZZINE, E. K. HLIL, Characterization and theoretical investigation of the magnetocaloric effect », Solid State Communications, 233, Pages: 6-10, Published: 2016.
  • [ART 38] I. ABED, N. KACEM, N. BOUHADDI, M.-L. BOUAZIZI, Multi-modal vibration energy harvesting approach based on nonlinear oscillator arrays under magnetic levitation, Smart Materials and Structures, 25 (2016) 025018 (13pp), Published: 2016.
  • [ART 39] I. ABED, N. KACEM, M.-L. BOUAZIZI, N.BOUHADDI, Nonlinear 2-DOFs Vibration Energy Harvester Based on Magnetic Levitation , Shock & Vibration Aircraft/Aerospace, and Energy Harvesting, pp : 39-45 ,Volume : 9, Published: 2015.
  • [ART 40] S. ZGHAL, M.-L. BOUAZIZI, N. BOUHADDI, R. NASRI, Model reduction methods for viscoelastic sandwich structures in frequency and time domain, Finite Elements in Analysis and Design, Vol. 93, pp: 12-29, Published: 2015.
  • [ART 41] S. ZGHAL, M.-L. BOUAZIZI, R. NASRI, A. BISHARAT, Dynamic analysis of laminated sandwich beams». International Journal of Current Engineering and Technology, Vol.5 , No.3, pp: 2347, Published: 2015.
  • [ART 42] S. ZGHAL, M.-L. BOUAZIZI, N. BOUHADDI, R. NASRI, Reduced-order model for non-linear dynamic analysis of viscoelastic sandwich structures in time domain , Shock & Vibration, Aircraft/Aerospace, and Energy Harvesting, pp : 39-45 ,Volume : 9, Published: 2015.
  • [ART 43] S. GHANMI, M. GUEDRI, M.-L. BOUAZIZI, N.BOUHADDI, Robust multi-objective and multi-level optimization of complex mechanical structures , Mechanical Systems and Signal Processing, Volume 25, Issue 7, Pages 2444-2461, Published: 2011. .
  • [ART 44] S. GHANMI, M. GUEDRI, M.-L. BOUAZIZI, N.BOUHADDI, Optimisation robuste multi-niveaux et multi-objectif de structures mécaniques complexes, Mécanique & Industries 11, Pages : 393–400, Published: 2010.
  • [ART 45] M.-L. BOUAZIZI, S. GHANMI, R. NASRI, N. BOUHADDI, Robust optimization of the non-linear behaviour of a vibrating system. European Journal of Mechanics - A/Solids, Volume 28, Issue 1, Pages : 141-154, Published: 2009.
  • [ART 46] M.-L. BOUAZIZI, R. MAJED, M. GUEDRI, N. BOUHADDI, Prediction condensed models adapted to the nonlinear structures in time domain. Journal of Sound and Vibration, Volume 320, Issue 3, Pages: 668-690, Published: 2009.
  • [ART 47] M.-L. BOUAZIZI, S. GHANMI, N. BOUHADDI, Multi-objective optimisation in dynamics of the structures with nonlinear behaviour: Contribution of the metamodels, Finite Elements in Analysis and Design, (2009)Volume 45, Issue 10, Pages: 612-623., Published: 2009.
  • [ART 48] M.- L. BOUAZIZI, Samir GHANMI, Rachid NASRI, Noureddine BOUHADD, Robust optimization of the non-linear behaviour of a vibrating system , European Journal of Mechanics - A/Solids, Vol. 28, Issue 1, Pages:141-154, Published:2009.
  • [ART 49] S. GHANMI, M. GUEDRI, M.-L. BOUAZIZI, N. BOUHADDI, Use of Metamodels in The Multi-Objective Optimization of Mechanical Structures with Uncertainties, Internal Journal for Computational Methods in Engineering Science Mechanics, Vol. 8, Pages: 283-302, Published: 2007.
  • [ART 50] S. GHANMI, M.-L. BOUAZIZI, N. BOUHADDI « Robustness of mechanical systems against Uncertainties uncertainties, Finite Elements in Analysis and Design, Vol. 43, Issue:4, Pages: 715-719,
  • Published: 2007.
  • [ART 51] M.- L. BOUAZIZI, R. NASRI, Y. ABDELLI, Parametric and optimization study of a vibration absorber with a generalized cubic, quadratic and non integer nonlinearities of damping and stiffness, International Review of Mechanical Engineering, (I.RE.M.E.), Vol. 540, n. 226, Published: 2007.
  • [ART 52] M.- L. BOUAZIZI, M. GUEDRI, N. BOUHADDI, Robust component modal synthesis method adapted to the survey of the dynamic behavior of structures with localized non-linearities, Mechanical Systems and Signal Processing, Vol. 20, Pages: 131-157, Published: 2006.

تواصل مع قيادات الجامعة

أبناءنا الطلاب والطالبات، يسعدنا التواصل معكم واستقبال استفساراتكم من خلال نظام تواصل

تواصل
  • معلومات تفيدك
    • دليل الجامعة
    • التقويم الأكاديمي
    • جامعات محلية ودولية
    • البيانات المفتوحة
  • خارطة البوابة
    • التوظيف
    • خريطة الموقع
    • مواقع ذات صلة
    • أسئلة متكررة
    • النسخة السابقة للبوابة
  • الأتمتة والتحول الرقمي
    • الدعم الفني للخدمات الإلكترونية
    • فريق البوابة الإلكترونية
    • تقنية المعلومات
  • السياسات والإجراءات
    • سياسات البوابة
    • المناقصات

إدارة العلاقات العامة والإعلام

  • للاتصال من داخل الجامعة 1200
  • للاتصال من خارج الجامعة 011-588-1200
  • البريد الإلكترونى pr@psau.edu.sa
  • لطلب خدمة وفتح بلاغ للأعطال ithelp.psau.edu.sa

© جامعة الأمير سطام بن عبد العزيز 2022

  •  
  •  
  •  
  •  
  •  

تصميم وتطوير عمادة تقنية المعلومات والتعليم عن بعد