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Titre : Modélisation mathématique des problèmes électro-élastique de contact avec frottement Type de document : texte imprimé Auteurs : Ammar Derbazi, Auteur ; Mohamed Dalah, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 58 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Antiplan Matériau électro-élastique Matériau électro-viscoélastique Loi de Contact Loi de Frottement Formulation Variationnelle Inéquation Variationnelle Solution Faible Electro-elastic Material Electro-viscoelastic Material Contact Law Friction Law Variational Formulation Variational Inequality Weak Solution ?? ????? ???? ???? ???? ???? ???? ???? ???? ????
????? ???????? ?????? ???????? ????????? ????????Index. décimale : 510 Mathématiques Résumé :
The purpose of this disertation is to study two types of antiplan contact problems with friction between a deformable body and a foundation. We assume along this disertation that the process is static for electroelastic materials and electro-viscoelastic materials. In first time, we try to construct a variational formulation of each problem and, we describe all the assumptions and equations for the each model of antiplan contact problem. In the second time, we give the boundary conditions with friction. Finally, the results we get on the existence and uniqueness of weak solutions of these problems will be confirmed and based by using the standard arguments of variational inequalities. The last part of this disertation contained an annex about some tools of functional analysis.Diplôme : Doctorat en sciences En ligne : ../theses/math/DER6911.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10250 Modélisation mathématique des problèmes électro-élastique de contact avec frottement [texte imprimé] / Ammar Derbazi, Auteur ; Mohamed Dalah, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2016 . - 58 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Antiplan Matériau électro-élastique Matériau électro-viscoélastique Loi de Contact Loi de Frottement Formulation Variationnelle Inéquation Variationnelle Solution Faible Electro-elastic Material Electro-viscoelastic Material Contact Law Friction Law Variational Formulation Variational Inequality Weak Solution ?? ????? ???? ???? ???? ???? ???? ???? ???? ????
????? ???????? ?????? ???????? ????????? ????????Index. décimale : 510 Mathématiques Résumé :
The purpose of this disertation is to study two types of antiplan contact problems with friction between a deformable body and a foundation. We assume along this disertation that the process is static for electroelastic materials and electro-viscoelastic materials. In first time, we try to construct a variational formulation of each problem and, we describe all the assumptions and equations for the each model of antiplan contact problem. In the second time, we give the boundary conditions with friction. Finally, the results we get on the existence and uniqueness of weak solutions of these problems will be confirmed and based by using the standard arguments of variational inequalities. The last part of this disertation contained an annex about some tools of functional analysis.Diplôme : Doctorat en sciences En ligne : ../theses/math/DER6911.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10250 Exemplaires
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Titre : Conception des filtres optiques a base de cristaux photoniques pour application dans les routeurs optiques dans les reseaux de telecomunications optiques Type de document : texte imprimé Auteurs : Abdelali Boudissa, Auteur ; Malek Benslama, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2013 Importance : 87 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Tags : Cristaux photoniques couplage cavité-guide d’onde cavité résonante filtre optique Filtre Passe Bande Channel Drop Filter la méthode FDTD la méthode PWE Photonic crystal coupled cavity waveguides resonant cavity optical filter Band Pass Filter FDTD method PWE method ???????? ??????? ?????? ?????? ????? ???? ???? ???? ??? ?????? ?????PW ?????FDTD ???? ???? ???? Index. décimale : 621 Electronique Résumé : The implanting of optical routers in telecommunication optical network necessitates the modeling constituent’s amounts and approvals which encircle the considered router. For it, in this work, we investigate three types of filters with base 2D photonic crystals. The first, it is a narrow band optical filter, this system is constituted with two waves guides obtained by omitting one row of holes of the photonic crystal, coupled among them by a resonant cavity formed by a point of defect in the crystal. Near the resonant frequency (??a/2πc = 0.38), light from the input waveguide can couple into the cavity, and the cavity in turn can couple into the output waveguide, is that the peak transmission is precisely 100%.Then a Band Pass Filter is proposed, the out put transmission spectra of our filter covered three band. Band I covers the wavelength range from 1.331 to 1.355 μm has 86% of transmission power, Band II, from 1.390 to 1.427 μm, has 98% of the transmission power and Band III from 1.46 to 1.507 μm, and has 27% of the transmission power. The full width at half maximum bandwidth of these bands is 9.7, 13.1 and 16.4 nm,respectively. And finally a new constitution of “Channel Drop Filter " is simulated, it consists of two waveguides bends coupled among them by linear resonant cavity. The power dropped from the input waveguide bend into the drop channel at 1550 nm (the resonant frequency)is about 89%; the power transferred to the other channels is less than 5%. The Band of out put transmission spectra of the drop channel cover the wavelength range from 1505 to 1600 nm and the bandwidth is about 12.7 nm and the Q factor is 122.
The temporal and spectral behavior of the device is studied using two dimensional Finite Difference Time Domain Method (2D-FDTD) and Plane Wave Expansion (PWE) methods respectively.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6325.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6291 Conception des filtres optiques a base de cristaux photoniques pour application dans les routeurs optiques dans les reseaux de telecomunications optiques [texte imprimé] / Abdelali Boudissa, Auteur ; Malek Benslama, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2013 . - 87 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Cristaux photoniques couplage cavité-guide d’onde cavité résonante filtre optique Filtre Passe Bande Channel Drop Filter la méthode FDTD la méthode PWE Photonic crystal coupled cavity waveguides resonant cavity optical filter Band Pass Filter FDTD method PWE method ???????? ??????? ?????? ?????? ????? ???? ???? ???? ??? ?????? ?????PW ?????FDTD ???? ???? ???? Index. décimale : 621 Electronique Résumé : The implanting of optical routers in telecommunication optical network necessitates the modeling constituent’s amounts and approvals which encircle the considered router. For it, in this work, we investigate three types of filters with base 2D photonic crystals. The first, it is a narrow band optical filter, this system is constituted with two waves guides obtained by omitting one row of holes of the photonic crystal, coupled among them by a resonant cavity formed by a point of defect in the crystal. Near the resonant frequency (??a/2πc = 0.38), light from the input waveguide can couple into the cavity, and the cavity in turn can couple into the output waveguide, is that the peak transmission is precisely 100%.Then a Band Pass Filter is proposed, the out put transmission spectra of our filter covered three band. Band I covers the wavelength range from 1.331 to 1.355 μm has 86% of transmission power, Band II, from 1.390 to 1.427 μm, has 98% of the transmission power and Band III from 1.46 to 1.507 μm, and has 27% of the transmission power. The full width at half maximum bandwidth of these bands is 9.7, 13.1 and 16.4 nm,respectively. And finally a new constitution of “Channel Drop Filter " is simulated, it consists of two waveguides bends coupled among them by linear resonant cavity. The power dropped from the input waveguide bend into the drop channel at 1550 nm (the resonant frequency)is about 89%; the power transferred to the other channels is less than 5%. The Band of out put transmission spectra of the drop channel cover the wavelength range from 1505 to 1600 nm and the bandwidth is about 12.7 nm and the Q factor is 122.
The temporal and spectral behavior of the device is studied using two dimensional Finite Difference Time Domain Method (2D-FDTD) and Plane Wave Expansion (PWE) methods respectively.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6325.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6291 Exemplaires
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Titre : الإكتئاب الأساسي لدى مريض السرطان كنشاط عقلي مميز Type de document : texte imprimé Auteurs : آمال فاسي ; جامعة منتوري, Editeur scientifique ; صالح معاليم, Directeur de thèse Année de publication : 2010 Importance : 328 ورقة Format : 30 سم Note générale : 02 نسخ في مخزن المكتبة المركزية 01 قرص مضغوط Langues : Arabe (ara) Tags : ???????? ??????? ???? ??????? ???? ???? ???? Index. décimale : 150 علم النفس En ligne : ../theses/psychologie/AFAS3171.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6387 الإكتئاب الأساسي لدى مريض السرطان كنشاط عقلي مميز [texte imprimé] / آمال فاسي ; جامعة منتوري, Editeur scientifique ; صالح معاليم, Directeur de thèse . - 2010 . - 328 ورقة ; 30 سم.
02 نسخ في مخزن المكتبة المركزية 01 قرص مضغوط
Langues : Arabe (ara)
Tags : ???????? ??????? ???? ??????? ???? ???? ???? Index. décimale : 150 علم النفس En ligne : ../theses/psychologie/AFAS3171.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6387 Exemplaires
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Titre : Simulation et modélisation d’installation de type solaire thermodynamique hybride Type de document : texte imprimé Auteurs : Imad Eddine Meriche, Auteur ; Abdelhadi Beghidja, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 136 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Modélisation Et Simulation Numérique Tour Solaire-Turbine à Gaz Cycle Rankine
Combiné Récepteur Volumétrique à Air Pressurisé Analyse Énergétique et Éxergétique Analyse Économique LEC Numerical Simulation and Modelling Solar-Gas Turbine Tower Combined Steam Cycle volumetric receiver Energetic and Exergetic Analyses economic analyses ???? ???????? ?????? ???? ???? ???? ???? ???? ????? ????? ???? ????? ????????????? ????? ????????Index. décimale : 620 Génie Mécanique Résumé : The combination of the solar energy with a high fuel conversion cycle is one of the major advantages of hybrid concentrating solar systems compared to other solar power plants.
This thesis seeks the design and the development of a thermodynamic model of the innovative concept of a solar gas turbine tower power plant using a closed volumetric receiver with an electric capacity equal to 11.5MWe, then we assess the potential to improve the performances of the installation by adding a combined steam cycle with electrical production equal to 3.5 MWe.
The Simulation and modelling study of the installation will be done initially by calculating the matrix of effectiveness of the solar fields’ (Monte Carlo method), then we proceed to the numerical simulation of the different components of the installation by the TRNSYS 16 software.
The main objective of the present study is to prove the advantage of adding a combined steam cycle in the solar gas turbine systems by an energetic and exergetic analysis for the climatic conditions of Béchar area, and assess the economic feasibility of the installation by the estimation of the Levelized electric cost (LEC).
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/MER7012.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10391 Simulation et modélisation d’installation de type solaire thermodynamique hybride [texte imprimé] / Imad Eddine Meriche, Auteur ; Abdelhadi Beghidja, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 136 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Modélisation Et Simulation Numérique Tour Solaire-Turbine à Gaz Cycle Rankine
Combiné Récepteur Volumétrique à Air Pressurisé Analyse Énergétique et Éxergétique Analyse Économique LEC Numerical Simulation and Modelling Solar-Gas Turbine Tower Combined Steam Cycle volumetric receiver Energetic and Exergetic Analyses economic analyses ???? ???????? ?????? ???? ???? ???? ???? ???? ????? ????? ???? ????? ????????????? ????? ????????Index. décimale : 620 Génie Mécanique Résumé : The combination of the solar energy with a high fuel conversion cycle is one of the major advantages of hybrid concentrating solar systems compared to other solar power plants.
This thesis seeks the design and the development of a thermodynamic model of the innovative concept of a solar gas turbine tower power plant using a closed volumetric receiver with an electric capacity equal to 11.5MWe, then we assess the potential to improve the performances of the installation by adding a combined steam cycle with electrical production equal to 3.5 MWe.
The Simulation and modelling study of the installation will be done initially by calculating the matrix of effectiveness of the solar fields’ (Monte Carlo method), then we proceed to the numerical simulation of the different components of the installation by the TRNSYS 16 software.
The main objective of the present study is to prove the advantage of adding a combined steam cycle in the solar gas turbine systems by an energetic and exergetic analysis for the climatic conditions of Béchar area, and assess the economic feasibility of the installation by the estimation of the Levelized electric cost (LEC).
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/MER7012.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10391 Exemplaires
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Titre : L'évaluation des bornes du système hyper-chaotique de Lorenz-Haken. Type de document : texte imprimé Auteurs : Ahmed Diar, Auteur ; Mohamed Denche, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 59 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles. Langues : Français (fre) Tags : Système hyper-chaotique solution bornées système de Lorenz-Haken limite ultime système financier complexe Hyper-chaotic system Boundness solution Lorenz-Haken system Ultimate boundedness complex financial system ???? ??? ?????? ???? ???? ???? ??????-????? ???? ??????? ???? ???? ???? Index. décimale : 510 Mathématiques Résumé : The first part of this thesis is dedicated to the study a dynamic complex financial system, the boundedness of solutions of this system is concerned. We have obtained the ultimate bound for the system.Furthermore, its rich dynamics are investigated through numerical simulations. By using the Lyapunov exponents technic, it is found that the variation of system parameters can induce the parameter ranges of chaos are different. Finally, numerical simulations are given to verify the effectiveness and correctness of the obtained results.
The second part of this thesis is dedicated to the study of the hyper-chaotic Lorenz-Haken system is considered and the solution bounds of such a system are investigated. Based on the Time-domain approach. Finally a numerical example is provided to illustrate the main result.
Diplôme : Doctorat en sciences En ligne : ../theses/math/DIA7210.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10779 L'évaluation des bornes du système hyper-chaotique de Lorenz-Haken. [texte imprimé] / Ahmed Diar, Auteur ; Mohamed Denche, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 59 f. ; 30 cm.
2 copies imprimées disponibles.
Langues : Français (fre)
Tags : Système hyper-chaotique solution bornées système de Lorenz-Haken limite ultime système financier complexe Hyper-chaotic system Boundness solution Lorenz-Haken system Ultimate boundedness complex financial system ???? ??? ?????? ???? ???? ???? ??????-????? ???? ??????? ???? ???? ???? Index. décimale : 510 Mathématiques Résumé : The first part of this thesis is dedicated to the study a dynamic complex financial system, the boundedness of solutions of this system is concerned. We have obtained the ultimate bound for the system.Furthermore, its rich dynamics are investigated through numerical simulations. By using the Lyapunov exponents technic, it is found that the variation of system parameters can induce the parameter ranges of chaos are different. Finally, numerical simulations are given to verify the effectiveness and correctness of the obtained results.
The second part of this thesis is dedicated to the study of the hyper-chaotic Lorenz-Haken system is considered and the solution bounds of such a system are investigated. Based on the Time-domain approach. Finally a numerical example is provided to illustrate the main result.
Diplôme : Doctorat en sciences En ligne : ../theses/math/DIA7210.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10779 Exemplaires
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