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Titre : Alimentation en eau du grand Constantine : ressources,aménagement et gestion. Type de document : texte imprimé Auteurs : Sandra Boussetti, Auteur ; Azzedine Mebarki, Directeur de thèse Mention d'édition : 10/07/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 270 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Aménagement du TerritoireTags : ressources en eau distribution fuites gestion modèle WEAP Groupement Urbain de Constantine water resources leaks management WEAP model الموارد المائية التوزيع التسربات الاحتياجات المائية تسيير نموذج WEAPالمجمع
لقسنطيني الحضري اIndex. décimale : 711 (Aménagement du territoire) Résumé :
In the semi-arid Mediterranean region, and more particularly in the Maghreb, the increased pressures on water resources (climate change, growing competition between users) are recognized as major issues. Rational water management is one of the challenges facing the Urban Grouping of Constantine (GUC) in northeast Algeria. Its water resources are renewable but limited, while the demand is constantly growing under the dual effect of population growth and increasing per capita needs. The Group is composed of five municipalities (Constantine, El Khroub, Ain Smara, Didouche Mourad and Hamma Bouziane) with a population of nearly 884,000 inhabitants in 2015, expected to reach 1.2 million inhabitants in 2030 and 1.8 million inhabitants in 2050 according to projections made by WEAP The mobilized resources provide a volume of drinking water supply of 117 million m3 of which 78 % is surface water and the rest is of underground origin. However, the volume billed is reduced to 47.3 million m3, a difference of -51% compared to the overall volume of water distributed (97 million m3). The rate of connection to the water supply network is over 80 %. The number of water leaks detected on the network has experienced a relative decline in 2015, the result of rehabilitation operations carried out at the level of urban centers. For the same year, SEACO statistics show that the hourly duration of water service increased in the GUC municipalities, reaching 18.3 hours per day and 74 % of households benefited from continuous distribution (24 hours per day). This improvement is mainly due to the increase in resources mobilized from the Beni Haroun dam. However, the spatial inequality in the supply of the GUC agglomerations remains effective. It is attributable both to the availability of the resource and to the management of hydraulic infrastructures. Also, satisfaction by mobilizable volumes may not be guaranteed in the long term, given sectoral competition, climatic hazards and the poor protection of resources. Modeling using WEAP (Water Evaluation and Planning System) has been performed. It is applied to evaluate and analyze the existing and expected resourcerequirement balance by 2050, according to future water resource management scenarios,
taking into account different exploitation policies and factors that may affect demand.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BOU7811.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11643 Alimentation en eau du grand Constantine : ressources,aménagement et gestion. [texte imprimé] / Sandra Boussetti, Auteur ; Azzedine Mebarki, Directeur de thèse . - 10/07/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 270 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Aménagement du TerritoireTags : ressources en eau distribution fuites gestion modèle WEAP Groupement Urbain de Constantine water resources leaks management WEAP model الموارد المائية التوزيع التسربات الاحتياجات المائية تسيير نموذج WEAPالمجمع
لقسنطيني الحضري اIndex. décimale : 711 (Aménagement du territoire) Résumé :
In the semi-arid Mediterranean region, and more particularly in the Maghreb, the increased pressures on water resources (climate change, growing competition between users) are recognized as major issues. Rational water management is one of the challenges facing the Urban Grouping of Constantine (GUC) in northeast Algeria. Its water resources are renewable but limited, while the demand is constantly growing under the dual effect of population growth and increasing per capita needs. The Group is composed of five municipalities (Constantine, El Khroub, Ain Smara, Didouche Mourad and Hamma Bouziane) with a population of nearly 884,000 inhabitants in 2015, expected to reach 1.2 million inhabitants in 2030 and 1.8 million inhabitants in 2050 according to projections made by WEAP The mobilized resources provide a volume of drinking water supply of 117 million m3 of which 78 % is surface water and the rest is of underground origin. However, the volume billed is reduced to 47.3 million m3, a difference of -51% compared to the overall volume of water distributed (97 million m3). The rate of connection to the water supply network is over 80 %. The number of water leaks detected on the network has experienced a relative decline in 2015, the result of rehabilitation operations carried out at the level of urban centers. For the same year, SEACO statistics show that the hourly duration of water service increased in the GUC municipalities, reaching 18.3 hours per day and 74 % of households benefited from continuous distribution (24 hours per day). This improvement is mainly due to the increase in resources mobilized from the Beni Haroun dam. However, the spatial inequality in the supply of the GUC agglomerations remains effective. It is attributable both to the availability of the resource and to the management of hydraulic infrastructures. Also, satisfaction by mobilizable volumes may not be guaranteed in the long term, given sectoral competition, climatic hazards and the poor protection of resources. Modeling using WEAP (Water Evaluation and Planning System) has been performed. It is applied to evaluate and analyze the existing and expected resourcerequirement balance by 2050, according to future water resource management scenarios,
taking into account different exploitation policies and factors that may affect demand.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BOU7811.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11643 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7811 BOU/7811 Thèse Bibliothèque principale Thèses Disponible Contribution à l’étude du transport électrique à travers des oxydes très minces (<10nm) dans des structures MOS / Rachida Bensegueni
Titre : Contribution à l’étude du transport électrique à travers des oxydes très minces (<10nm) dans des structures MOS Type de document : texte imprimé Auteurs : Rachida Bensegueni, Auteur ; Saida Latreche, Directeur de thèse Année de publication : 2016 Importance : 166 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Semi-conducteurs Microelectronic down-scaling strained Si channel high-k dielectric mobility gate leakage currents direct tunneling current Microélectronique miniaturisation MOSFET Silicium contraint diélectrique haute
permittivité mobilité courants de fuites courant tunnel direct الالكترونيات الدقيقة التصغير السيليكون المتوترة ثنائية المحور العازل عالي السماحية التىقل الالكتروني التسربات تيار تونالIndex. décimale : 621 Electronique Résumé : The continuous down-scaling of MOS transistors dimensions over the last years allowed a significant revolution in the semiconductor industry. However, in order to maintain this trend, shrinking of conventional n MOS dimensions is no more sufficient enough and replacement of some transistor materials is one of the alternative ways currently under study to solve this issue. In this context, the work presented here, on the study of the transport properties of the nMOS architectures combining both new technology options; a high-k gate dielectric in place of the SiO2 and a biaxialy tensile strained channel.
Firstly, the influence of biaxial tensile strain on the electrical properties of the n-MOS transistor has been investigated using a numerical solution of drift diffusion partial equations.
The simulation results showed a significant improvement in electrons mobility and an increase in current ID (VD).
Then, we study the impact of the incorporation of a high-k gate stack on improving leakage through the oxide. The calculation results obtained from the ATLAS (SILVACOTCAD) simulator have shown that the use of high dielectric constant oxides significantly reduces the tunneling leakage current through increased physical thickness of the stack.
However, we noted a decrease of the electron mobility in the channel If MOS transistors with a high-k dielectric HfO2 hafnium relative to SiO2 Finally, the feasibility and interest to introduce a strained silicon channel to counteract the degradation of mobility associated with stacking metal / HfO2 are then discussed.
Note de contenu :
Annexe I: discrétisation des équations par la méthode des différences finies
Annexe II: simulation électrique par ATLAS (SILVACO-TCAD)Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BEN6980.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10415 Contribution à l’étude du transport électrique à travers des oxydes très minces (<10nm) dans des structures MOS [texte imprimé] / Rachida Bensegueni, Auteur ; Saida Latreche, Directeur de thèse . - 2016 . - 166 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Semi-conducteurs Microelectronic down-scaling strained Si channel high-k dielectric mobility gate leakage currents direct tunneling current Microélectronique miniaturisation MOSFET Silicium contraint diélectrique haute
permittivité mobilité courants de fuites courant tunnel direct الالكترونيات الدقيقة التصغير السيليكون المتوترة ثنائية المحور العازل عالي السماحية التىقل الالكتروني التسربات تيار تونالIndex. décimale : 621 Electronique Résumé : The continuous down-scaling of MOS transistors dimensions over the last years allowed a significant revolution in the semiconductor industry. However, in order to maintain this trend, shrinking of conventional n MOS dimensions is no more sufficient enough and replacement of some transistor materials is one of the alternative ways currently under study to solve this issue. In this context, the work presented here, on the study of the transport properties of the nMOS architectures combining both new technology options; a high-k gate dielectric in place of the SiO2 and a biaxialy tensile strained channel.
Firstly, the influence of biaxial tensile strain on the electrical properties of the n-MOS transistor has been investigated using a numerical solution of drift diffusion partial equations.
The simulation results showed a significant improvement in electrons mobility and an increase in current ID (VD).
Then, we study the impact of the incorporation of a high-k gate stack on improving leakage through the oxide. The calculation results obtained from the ATLAS (SILVACOTCAD) simulator have shown that the use of high dielectric constant oxides significantly reduces the tunneling leakage current through increased physical thickness of the stack.
However, we noted a decrease of the electron mobility in the channel If MOS transistors with a high-k dielectric HfO2 hafnium relative to SiO2 Finally, the feasibility and interest to introduce a strained silicon channel to counteract the degradation of mobility associated with stacking metal / HfO2 are then discussed.
Note de contenu :
Annexe I: discrétisation des équations par la méthode des différences finies
Annexe II: simulation électrique par ATLAS (SILVACO-TCAD)Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BEN6980.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10415 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/6980 BEN/6980 Thèse Bibliothèque principale Thèses Disponible
Titre : ترشيد إستهلاك المياه بمنطقة تقرت Type de document : texte imprimé Auteurs : عبد العالي دكمة ; جامعة منتوري, Éditeur scientifique ; علاوة عنصر, Directeur de thèse Année de publication : 2010 Importance : 175 ورقة Format : 30 سم Note générale : 02 نسخة موجودة في مخزن المكتبة المركزية 01 قرص مضغوط Langues : Arabe (ara) Catégories : Arabe
التهيئة العمرانيةTags : التوزيع المياه، الطبقات الجوفية نوعية المياه ترشيد الاستهلاك الطلب على المياه الحاجيات المائية معدل النمو التسربات المبردات العدادات الاستمارات Index. décimale : 711 التهيئة العمرانية En ligne : ../theses/amenagement/ADAK3112.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6551 ترشيد إستهلاك المياه بمنطقة تقرت [texte imprimé] / عبد العالي دكمة ; جامعة منتوري, Éditeur scientifique ; علاوة عنصر, Directeur de thèse . - 2010 . - 175 ورقة ; 30 سم.
02 نسخة موجودة في مخزن المكتبة المركزية 01 قرص مضغوط
Langues : Arabe (ara)
Catégories : Arabe
التهيئة العمرانيةTags : التوزيع المياه، الطبقات الجوفية نوعية المياه ترشيد الاستهلاك الطلب على المياه الحاجيات المائية معدل النمو التسربات المبردات العدادات الاستمارات Index. décimale : 711 التهيئة العمرانية En ligne : ../theses/amenagement/ADAK3112.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6551 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité دكم/3112 دكم/3112 Thèse Bibliothèque principale Thèses Disponible
