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var str = 'قراءة في واقع و آفاق الاستثمار الأجنبي المباشر في الجزائر';
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]]>
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var str = 'Etude et réalisation d’un hacheur PWM';
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]]>
الجزائر]]>
الإستثمار الأجنبي]]>
Asservissement par plus –ou -moins]]>
Modulation de largeur d’impulsions]]>
Conception de hacheur]]>
كان ينظر للاستثمار الأجنبي المباشر في البلدان النامية خلال الستينات و السبعينات من القرن الماضي بنظرة ريب و شك. خاصة إذا علمنا المد الماركسي و الأثر الاشتراكي على المدارس الفكرية لدول العالم الثالث
]]>
Ce travail présente l’analyse fine d’un asservissement non linéaire par plus – ou - moins à rétroaction via un filtre du premier ordre. Le système étudié est capable de générer une modulation de largeur d’impulsions qui est exploitée pour la conception et la réalisation d’un hacheur PWM (Pulse Width Modulation) destiné à une alimentation fluctuante (photovoltaïque, éolienne,..). L’étude consiste essentiellement à déterminer le lien entre les grandeurs telles que la consigne, l’amplitude de la tension moyenne de sortie, les fréquences de découpage en fonction des paramètres du système et des contraintes technologiques afférentes. L’étude théorique est suivie par une simulation et par la réalisation d’un hacheur expérimental. Des expériences seront présentées pour évaluer la correspondance entre le modèle théorique et les résultats expérimentaux.]]>
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var str = 'رويبح , خالد';
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var str = 'Zaatri, Abdelouahab';
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var str = 'Belhour, Souad';
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]]>
مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 379-396]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 379-396]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 379-396]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 187 – 198]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 187 – 198]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2346/1730]]>
https://revue.cder.dz/index.php/rer/article/view/188/1583]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2346]]>
10.37138/jarh.v5i10.2346]]>
https://revue.cder.dz/index.php/rer/article/view/188]]>
10.54966/jreen.v13i1.188]]>
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var str = 'موسى لقبال رائد التعليم و البحث في التاريخ الاسلامي بالجامعة الجزائرية';
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var str = 'Optimization of the performance of micromorph tandem solar cell a-Si/uc-Si';
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سيرة]]>
موسى لقبال]]>
PECVD]]>
AFORS-HET]]>
AMPS 1D]]>
انتقل الى رحمة الله المؤرخ العلامة الأستاذ الكدتور موسى لقبال عن عمر يناهو خمسة و سبعين سنة حيث وافته المنية ...]]>
We have performed a Computer modeling using AMPS 1D and AFORS-HET for optimizing tandem cells on p-i-n/p-i-n configuration. We investigated the influence of the substrate temperature for doped layer deposition technique in the top cell performances and the influence of the thickness of the bottom cell in the density of current that present a crucial parameter in the current matching between subcells. The simulation results demonstrate in one hand that a top cell a-Si with doped layers deposited by PECVD with 1000C substrate temperature provides a notable increase in the efficiency, and in the other hand a bottom cell with 900nm thick intrinsic layer exhibit more density of current. The performances of micromorph cell obtained from simulation give a good agreement with experimental results and confirm the importance of the combination as a double junction solar cell]]>
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var str = 'سامعي, إسماعيل';
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var str = 'Boussettine, Adnan Amin';
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var str = 'Rezgui, Béchir Dridi';
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var str = 'Benmansour, Abdelhalim';
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var str = 'Bremond, Georges';
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var str = 'Lemiti, Mustapha';
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]]>
مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 397-402]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 397-402]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 397-402]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 179 – 186]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 179 – 186]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2345/1729]]>
https://revue.cder.dz/index.php/rer/article/view/187/1582]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2345]]>
10.37138/jarh.v5i10.2345]]>
https://revue.cder.dz/index.php/rer/article/view/187]]>
10.54966/jreen.v13i1.187]]>
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var str = 'موقف أبي اسحاق الزجاج من القراءات القرآنية دراسة في معاني القرآن و إعرابه';
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var str = 'Le moteur à charge stratifiée, Un moyen de réduction des NOx';
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]]>
أبي اسحاق الزجاج]]>
القراءات القرآنية]]>
معاني القرآن و إعرابه]]>
Moteur]]>
Allumage commandé à charge stratifiée]]>
Oxyde d’azote]]>
Modèle multi zones]]>
يعد أبو اسحاق إبراهيم بن السري المعروف باسم الزجاج أحد أبرز أعلام النحو العربي في نهاية القرن الثالث و بداية القرن الرابع الهجري فقد عاش في فترة هي من أخصب العصور الفكرية في التاريخ العربي
]]>
Afin de réduire la quantité d’oxyde d’azote formée dans un moteur à essence, la solution proposée est la combustion stratifiée. Pour cela, le modèle multi zone est utilisé pour l’étude du processus de combustion et la formation de l’oxyde d’azote dans un moteur à allumage commandé. Il commence par l’utilisation de l’approche de Wiebe pour décrire le processus de dégagement de chaleur durant la phase de combustion. L’utilisation d’un schéma d’équilibre chimique pour le système C – H – O – N est nécessaire pour le calculer de la concentration des espèces dans les gaz d’échappement,. Ainsi, les résultats théoriques des deux types de moteurs (à charge homogène et à charge stratifiée) issus de ce modèle sont comparés avec ceux mesurés.]]>
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var str = 'بن طناش, عبد الناصر';
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var str = 'Chelghoum, Abdelaziz';
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var str = 'Kadja, Mahfoud';
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var str = 'Higelin, Pascal';
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var str = 'Ouksel, Tayeb';
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]]>
مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 121-146]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 121-146]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 121-146]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 163 – 178]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 163 – 178]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2344/1728]]>
https://revue.cder.dz/index.php/rer/article/view/186/1581]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2344]]>
10.37138/jarh.v5i10.2344]]>
https://revue.cder.dz/index.php/rer/article/view/186]]>
10.54966/jreen.v13i1.186]]>
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var str = 'شرح لامية الأفعال بين ابن الناظم (ت: 686هـ/) و عبد الكريم الفكون القسنطيني (ت : 1073هـ/) دراسة وصفية تحليلية';
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var str = 'Modélisation et commande d’une génératrice Synchrone à aimants permanents dédiée à la conversion de l’énergie éolienne';
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]]>
لامية الأفعال]]>
ابن الناظم الأندلسي]]>
عبد الكريم الفكون القسنطيني]]>
Commande MPPT]]>
Eolienne]]>
Génératrice synchrone à aimants permanents]]>
Modélisation]]>
Redresseur MLI]]>
إن من أجل العلوم علوم العربية ، فاتقاها فهم لاي القرآن ، و معرفتها وصول إلى التكلم بكلام العرب على الحقيقة صوابا غير مبدل و لا مغير وقديما قال بعض السلف : عليكم بالعربية فإنها المروءة الظاهرة ، و هي كلام الله عز و جل]]>
Dans cet article, nous étudions la modélisation et la commande d’une génératrice synchrone à aimants permanents associée à une chaîne de conversion d’énergie éolienne de petite taille en site isolé. Le système proposé débite à travers un redresseur MLI commandé en sortie continue par un algorithme MPPT afin d’obtenir un rendement énergétique maximal. Les résultats des différentes simulations de toute la chaîne de conversion, réalisées sous environnement MATLAB/Simulink, ont permis d’évaluer les performances du système proposé.]]>
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var str = 'مسيلي, وردة';
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var str = 'Belakehal, Soltane';
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var str = 'Bentounsi, Amar';
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var str = 'Merzoug, Mohamed Salah';
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var str = 'Benalla, Houcine';
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مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 147-176]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 147-176]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 147-176]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 149 - 161]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 149 - 161]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2343/1727]]>
https://revue.cder.dz/index.php/rer/article/view/185/1580]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2343]]>
10.37138/jarh.v5i10.2343]]>
https://revue.cder.dz/index.php/rer/article/view/185]]>
10.54966/jreen.v13i1.185]]>
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var str = 'الموت الهاجس و السؤال في ديوان "كذلك" لنادر هدى';
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]]>
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var str = 'Simulation numérique des besoins énergétiques d’une serre agricole sous le climat de Marrakech - Maroc';
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نادر حدى]]>
ديوان كذلك]]>
Serre agricole]]>
Equilibre énergétique]]>
Besoins énergétiques]]>
Pertes thermiques]]>
Energie de chauffage]]>
إن البحث في تجليات الصدمة داخل الكتابة الإبداعية أيا كان شكلها و منطلقها و خلفياتها يحيل على أن إثارة مثل هذا التساؤل لا يتوفر و يكون ممكنا في أي وضع اجتماعي و إيديولوجي يجد المبدع نفسه فيه بل يفترض وجود وضع ذا خصوصيات معينة يجعله منفتحا لهذا النوع من الممارسات الفكرية الجمالية]]>
Dans ce travail, on présente un modèle du bilan énergétique d’une serre agricole basé sur un ensemble d’équations théoriques intégrant les processus d’échanges thermiques entre les différentes composantes de la serre en tenant compte du couvert végétal. Le modèle ainsi développé prend en considération les conditions météorologiques instantanées du lieu de plantation de la serre (température, humidité, radiations solaires, vitesse du vent). Le système d’équations non linéaires obtenu est résolu par la méthode itérative de Newton-Raphson. Elle permet de prédire les paramètres climatiques suivants: la température de la plante, l’humidité et la température de l’air intérieur de la serre et les flux de chaleur sensible et latente des plantes. Pour une température de consigne exigée par la plante et dans le but d’estimer instantanément les besoins énergétiques de la serre (chauffage/refroidissement), le modèle a été inversé numériquement. Afin d’obtenir une évaluation des besoins en chauffage des serres à l’échelle régionale de Marrakech, pour une base de temps adéquate (période hivernale), une simulation dynamique a été conduite pour mieux gérer les apports énergétiques et les calendriers culturaux de la zone. Dans le cadre de ce travail, une quantification des différentes composantes des pertes thermiques à travers la structure d’une serre en plastique pour un débit d’énergie de chauffage donné a été réalisée. Pour minimiser les dépenses énergétiques, des mesures doivent être prises comme l’utilisation d’une double couverture en plastique, l’amélioration de l’étanchéité de la serre et l’installation d’un système de stockage d’énergie diurne pour une éventuelle restitution nocturne.]]>
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var str = 'عبد الوهاب , بوشليحة';
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var str = 'El Omari, Mohamed';
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var str = 'El Qarnia, Hamid';
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مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 195-177]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 195-177]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 195-177]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 133 - 148]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 133 - 148]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2342/1726]]>
https://revue.cder.dz/index.php/rer/article/view/184/1579]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2342]]>
10.37138/jarh.v5i10.2342]]>
https://revue.cder.dz/index.php/rer/article/view/184]]>
10.54966/jreen.v13i1.184]]>
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var str = 'الدراسات النقدية في مجلة الثقافة لبجزائرية مقاربة وصفية';
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var str = 'Modeling convective and intermittent drying of agricultural products';
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مجلة الثقافة الجزائرية]]>
مقاربة وصفية]]>
Convective and intermittent drying]]>
Heat and mass transfer]]>
Drying kinetic]]>
Numerical simulation]]>
لا شك أن كل دارس للأدب و النقد يدرك أهمية ما تقدمه الدوريات من دفع نهضوي على كافة المستويات الفكرية و الأدبية و الثقافية بشكل عام ، بخاصية الدوريات المتخصصة التي كانت منابر لأشهر الأقلام الأدبية و النقدية في العالم العربي]]>
The purpose of this work is to quantify the energetic interest of convective and intermittent drying process of natural products. This drying mode has been achieved within a climatic blower. This laboratory device permitted us to achieve several tests for different conditions of drying for apples, carrots and peppers. This study permitted to appreciate the capacity of the model to describe the different drying periods. In the continuous case, a variation of the air velocity permitted us to find the most economic velocity for the drying of thin layer products. In the intermittent case, the numerical simulation profiles give us more information on what happens really to the product during periods of stop. Besides, the drying kinetics at the retaking increases with the air temperature. Then, we gain in energy and in global drying time.]]>
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var str = 'لواتي, امال';
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var str = 'Benali, Elaid';
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var str = 'Ben Mabrouk, Salah';
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var str = 'Sassi, Mohamed';
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مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 197-212]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 197-212]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 197-212]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 123 - 132]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 123 - 132]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2341/1725]]>
https://revue.cder.dz/index.php/rer/article/view/183/1578]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2341]]>
10.37138/jarh.v5i10.2341]]>
https://revue.cder.dz/index.php/rer/article/view/183]]>
10.54966/jreen.v13i1.183]]>
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var str = 'جدلية الروح و الطين عند أمينة المريني قراءة في ديوان "سآتيك فردا"';
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var str = 'Simulation et optimisation énergétique de la combustion isobare des hydrocarbures saturés CnH2n+2, par deux approches de résolution';
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]]>
أمينة المريني]]>
ديوان سآتيك فردا]]>
Combustion]]>
Affinité chimique]]>
Hydrocarbures]]>
Constante d’équilibre]]>
إن أول محطة يمكن الوقةف عندها في دراسة أي عمل أدبي هي العنوان الذي يختاره المبدع لعمله و الذي قد يكون عنوان نص من نصوصه أو عنوانا آخر يراه مناسبا للدلالة على عصارة روحه و فكره]]>
L’importance de ce travail portera sur l’élaboration d’un programme pour la simulation de la combustion isobare et adiabatique des hydrocarbures saturés CnH2n+2. Deux méthodes illustrent le calcul de la combustion, la première est fondée sur l’annulation des affinités des réactions chimiques considérées au sein des produits de combustion, quant à la deuxième, elle est basée sur le calcul des constantes d’équilibre. Dans cette étude, les produits de la combustion comprennent essentiellement 12 éléments: CO2, H2O, O2, N2, CO, H2, OH, NO, H, O, NO2 et N. Les résultats obtenus restent des valeurs approchées. La première méthode et la deuxième donnent des résultats quantitatif conformes à la réalité quelque soit la richesse du mélange.]]>
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var str = 'قدور , سكينة';
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var str = 'Kherris, Sahraoui';
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var str = 'Makhlouf, Mohammed';
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var str = 'Sebbane, Omar';
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var str = 'Chadouli, Rachid';
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مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 213-238]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 213-238]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 213-238]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 101 - 108]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 101 - 108]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2340/1724]]>
https://revue.cder.dz/index.php/rer/article/view/181/1577]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2340]]>
10.37138/jarh.v5i10.2340]]>
https://revue.cder.dz/index.php/rer/article/view/181]]>
10.54966/jreen.v13i1.181]]>
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var str = 'طه عبد الرحمان و سؤال الحداثة من النقد الأخلاقي إلى إعادة إبداع';
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var str = 'Conception, simulation et réalisation d’un système photovoltaïque destiné au stockage d’énergie dans les batteries stationnaires (2V)';
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]]>
طه عبد الرحمان]]>
النقد الأخلاقي]]>
الإبداع]]>
Energie photovoltaïque (PV)]]>
Panneaux PV]]>
Système PV]]>
Caractérisations électriques]]>
Commande MPPT]]>
Convertisseur DC/DC Buck]]>
Simulateur Pspice]]>
Grandeurs électriques optimales]]>
Point de puissance maximale (PPM)]]>
ما يستوقفنا أولا أمام مشروع طه عبد الرحمان المعرفي هو ذلك الترابط المنهجي و الإتساق الداخلي بين مختلف الإشكاليات و القضايا التي خمنها]]>
Dans cet article, nous avons étudié dans le simulateur Pspice, la conception et le fonctionnement d’un système photovoltaïque (PV) destiné au stockage de l’énergie électrique, produite par les panneaux PV, dans les batteries de tensions inférieures à celles optimales des panneaux PV (batteries stationnaires ‘2V’,….). Dans ce système, la régulation de la puissance est effectuée par le biais d’un convertisseur DC/DC, de type Buck (dévolteur), et d’une commande MPPT qui fixe la tension optimale du panneau PV à une valeur fixe (Commande CFT) [8]. Les résultats obtenus montrent d’une part le bon fonctionnement de chaque bloc du système, et d’autre part l’oscillation de la puissance fournie par le générateur PV autour du point de puissance maximale (PPM). Les différents résultats obtenus dans Pspice sont validés à partir du système PV réalisé au laboratoire. Durant une journée de fonctionnement, nous avons montré un très bon accord entre l’expérience et la simulation, et des performances très satisfaisantes du système PV conçu et réalisé au cours de ce travail. Pour une journée où l’éclairement maximal est de l’ordre de 750 W/m2 (vers le milieu de la journée), l’énergie produite par le panneau est de l’ordre de 290 Wh. En comparant avec le fonctionnement optimal du panneau, obtenu par la modélisation du fonctionnement des panneaux PV dans Pspice, nous avons montré que les pertes d’énergie sont inférieures à 1.4 %. Ces faibles valeurs de pertes, le rendement satisfaisant du convertisseur (> 70 %) et donc le bas coût du système PV montrent que le système PV conçu et réalisé peut être utilisé dans une installation pour usage domestique: éclairage, audio visuel, télévisons,…]]>
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var str = 'بلعقروز , عبد الرزاق';
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var str = 'Mrabti, Tarik';
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var str = 'El Ouariachi, Mostafa';
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var str = 'Tidhaf, Belkassem';
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var str = 'Chadli, Elhassane';
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var str = 'Kassmi, Khalil';
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مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 239-262]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 239-262]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 239-262]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 85 - 100]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 85 - 100]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2339/1723]]>
https://revue.cder.dz/index.php/rer/article/view/180/1576]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2339]]>
10.37138/jarh.v5i10.2339]]>
https://revue.cder.dz/index.php/rer/article/view/180]]>
10.54966/jreen.v13i1.180]]>
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var str = 'الهجرة الهلالية و أثرها في تغيير البنية الاجتماعية لبلاد الزاب';
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var str = 'New method of current control for LCL-interfaced grid-connected three phase voltage source inverter';
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]]>
الهجرة الهلالية]]>
بلاد الزاب]]>
البنية الإجتماعية]]>
LCL filter]]>
Inverter]]>
Grid]]>
Controller]]>
Modelling]]>
لقد قدمت الدراسات الكلاسيكية عدة تفسيرات لتاريخ المغرب الوسيط ربطته في أغلبها بدور الكيانات السياسية التى تأسست في مناطق الشمال في تحديد مصاره . غير أن الاهتمام سرعان ما انتقل إلى مناطقه الجنوبية المشتهرة بثقافته الواحية في محاولة لدراسة تاريخ العنصر الإباضي المستقر أساسا بمدن ميزاب و بجبل نفوسة .]]>
This paper presents an approach for the connection of a photovoltaic generator to the utility grid. A theoretical analysis, modelling, controlling and a simulation of a grid connected photovoltaic system using an output LCL filter are described in detail. In order to reduce the complexity of the system, a linear voltage and current controllers have been developed for a three phase grid connected inverter. Those controllers simultaneously regulate the dc link voltage (the photovoltaic power is delivered to the grid) and the current injected to the grid (to operate at unity power factor). The simulation results show the proposed methods work properly. Moreover they show that the control performance and dynamic behaviour of the inverter-LCL-grid combination. Simulation results show that the output LCL filter installed at the inverter output offer high harmonic attenuation.]]>
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var str = 'عمارة , علاوة';
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var str = 'Hamrouni, Nejib';
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var str = 'Jraidi, Moncef';
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var str = 'Chérif, Adnane';
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]]>
مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 09-26]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 09-26]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 09-26]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 71 – 84]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 71 – 84]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2338/1722]]>
https://revue.cder.dz/index.php/rer/article/view/179/1575]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2338]]>
10.37138/jarh.v5i10.2338]]>
https://revue.cder.dz/index.php/rer/article/view/179]]>
10.54966/jreen.v13i1.179]]>
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var str = 'مساهمة علماء القلعة في الحياة الفكرية ببجاية';
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var str = 'Light soaking effect on defect states distribution of Hydrogenated amorphous silicon investigated By means of constant photocurrent technique';
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]]>
علماء القلعة]]>
بجاية]]>
الحياة الفكرية]]>
قلعة بني حمادة]]>
Constant photocurrent method]]>
Optical absorption spectrum]]>
Light soaking]]>
Hydrogenated amorphous silicon]]>
Defect states]]>
رغم تراجع المكانة السياسة لقلعة بني حمادة كعاصمة للدولة الحمادية ، بعد شغل بجاية لهذه الوظيفة ، إلا أن مكانتها كحاضرة ثقافية ظلت قائمة ، و ذلك حتي بعد سقوط الدولة الحمادية، و هذا ما يظهر من خلال تزاجم العلماء الذين ينتمون بالأصل إلى قلعة بني حماد، واستقرو في حواضر عديدة بالمغرب و الأندلس ، و ساهمو في الحياة الثقافية و الفكرية بتلك الحواضر.]]>
In the present paper we have investigated, by using the constant photocurrent method in dc-mode (dc-CPM), the effect of the light soaking (LS) on the deep defect density (Nd) and the slope of the Urbach tail (E0) of a slightly phosphorus-doped hydrogenated amorphous silicon (a-Si:H) film prepared by Plasma-Enhanced Chemical Vapour Deposition (PECVD). By applying the derivative method, we have converted the measured data into a density of states (DOS) distribution in the lower part of the energy gap. The evolution of the sub-band-gap absorption coefficient and the CPMdetermined density of gap-states distribution within the gap versus the illumination time leads to: (i) an increase in the deep defect absorption without any significant changes in the Urbach tail (exponential part), (ii) a presence of more charged than neutral defects as predicted by the defect pool model, and (iii) a saturation point of the degradation of both optical absorption coefficient and density of deep states of slightly P-doped sample measured by dc-CPM. The constant photocurrent technique in dc-mode as a spectroscopy method for the defect distribution determination is, therefore, most reliable to study the light soaking effect on the stability of hydrogenated amorphous silicon layers used in solar cells manufacturing.]]>
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var str = 'بوداود, عبيد';
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]]>
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var str = 'Tibermacine, Tawfik';
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var str = 'Merazga, Ammar';
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]]>
مجلة الآداب والعلوم الإنسانية ; مجلد 5 عدد 2 (2008): v5i102008; 27-34]]>
Journal of Arts and Humanities; Vol. 5 No 2 (2008): v5i102008; 27-34]]>
Journal of Arts and Humanities; Vol. 5 No. 2 (2008): v5i102008; 27-34]]>
2588-2449]]>
1112-4628]]>
10.37138/jarh.v5i10]]>
Journal of Renewable Energies; Vol. 13 No. 1 (2010): Volume 13 (Regular); 63 – 70]]>
Journal of Renewable Energies; Vol. 13 No 1 (2010): Volume 13 (Regular); 63 – 70]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v13i1]]>
كلية الآداب والحضارة الإسلامية - قسنطينة]]>
Renewable Energy Development Center]]>
2023-02-23]]>
2023-10-25]]>
https://creativecommons.org/licenses/by-nc-nd/4.0]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2337/1721]]>
https://revue.cder.dz/index.php/rer/article/view/178/1574]]>
application/pdf]]>
ara]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
http://ojs.univ-emir-constantine.edu.dz/ojs/index.php/jarh/article/view/2337]]>
10.37138/jarh.v5i10.2337]]>
https://revue.cder.dz/index.php/rer/article/view/178]]>
10.54966/jreen.v13i1.178]]>