Parcourir Faculté des Sciences exactes par date de publication
Voici les éléments 1-20 de 2011
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Les methodes numeriques pour les equations aux derivees partielles avec des conditions aux limites non locales
(Université Mentouri Constantine, 14-5-2012) -
La Phénoménologie au dela du modéle standard
(2009-06-10)In this thesis we have constructed the quantized Standard model, with massless ghost Öelds using an extended mathematical formalism of discrete space with six components valued functions. According to this, we introduced ... -
Etude phytochimique d’une plante medicinale de l’est Algerien
(Université Mentouri Constantine, 2011-01-27)Our objective through the present study is to rein vestigate one famous plant used tremendously in our folk medicine, namely Artemisia herba-alba. In spite of the numerous studies so far carried ... -
Effet de vieillissement naturel sur les propriétés mécaniques de deux toles AlMgSi
(Université Mentouri Constantine, 2012-01-01)In this work , we have undertaken the study of two sheets AlMgSi. These arouse great interest for their privileged use in the automotive and the aerospace industrie . The ... -
Synthèse, caractérisations et étude structural des céramiques PZT de type pérovskite Pb1-xLazCax [(ZrY Ti1-Y)0.75 (Sb) 0.25]O3
(Université Mentouri Constantine, 2012-02-20)Conclusion Générale 98 Abstract: At this stage of o ur study on the ternary system: Pb 1 - x La z Ca x [(Zr y Ti 1 - y ) 0,75 (Sb) 0,25 ]O 3 . It seems necessary to draw some conclusions ... -
Étude de l’interaction entre un métal de transition et silicium
(Université Mentouri Constantine, 2012-03-06) -
Photoréactivité de la métamitrone et mécanisme de photosensibilisation par le mélange riboflavine/substances humiques
(Université Mentouri Constantine, 2012-04-12)The photodeamination of the herbicide metamitron (M T) was studied in pure water by irradiation with continuous and pulsed light. This study leads to understand the mechanism of this photochemical ... -
Analyse thermique des alliages d'aluminium AlMgSi(Cu)
(Université Mentouri Constantine, 2012-04-25)In this work, we have undertaken the study of an Al-Mg -Si alloy of 6000 series with excess silicon of the series 6000, belongs to the category of heat treatable ... -
Préparation et étude structurale de nouveaux composés hybrides à base d’amine et d’indium
(Université Mentouri Constantine, 2012-05-24)The purpose of this works is the synthesis of new hybrid materials formed of aquapentachloridoindate , hexachloridoin date and the or ganic matrix: cyclic amine. The structural study and the ... -
Synthèse par voie anodique d’hétérocycles à partir de composés azotés diversement substitués
(Université Mentouri ConstantineL’université de RENNES 1, 2012-06-04)The creation of C - C bound link Direct current is for a long time one of the research axles favour chemistry. The heterocycl of the tétrahydroisoquinolines is among classical divisions of organic chemistry ... -
Complexes de transferts de charges a base de carbazole et de
(Université Mentouri Constantine, 2012-10-19)Poly N-Vinylcarbazole (PVK) is one of the most of ten used polymer host materials for optoelectronic devices based on molecularly doped s ystems, due to its good film forming properties, ... -
Developpement mathematique et applications de la gravitation quantique a boucles
(2016-01-02)Loop Quantum gravity is a tentative theory to describe the quantum structure of spacetime at the Planck scale, the scale at which both general relativity and quantum theory manifest equally. The theory comes in three versions: ... -
Dégradation de produits pharmaceutiques photoinduite par les oxychlorures de bismuth et par les ions persulfate dans le compartiment aquatique
(2016-09-29)"This work is a contribution to the elimination of three pharmaceutical compounds from different therapeutic classes: carbamazepine (anti-epileptic), diclofenac (antiinflammatory) and venlafaxine (anti-depressor) by ... -
Etude phytochimique et évaluation des activités biologiques des espèces
(Universite des freres mentouri constantine, 2016-10-10)This present work concerns the phytochemical and biological study of three Algerian plants belonging to the Lamiaceae family : Mentha aquatica L., Stachys guyoniana de Noé and Thymus dreatensis Batt. Chromatographic ... -
Synthèse et propriétés d’organo-chélates tinctoriaux
(جامعة الإخوة منتوري قسنطينة, 2016-10-27)This doctoral thesis is devoted to the study of azo dyes and their organometallic complexes, which are a particular class of chemistry whose importance and interest to remain our considerable days. The dye industry is ... -
Etude phytochimique et evaluation biologique de l’espèce senecio delphinifolius Vahl
(جامعة الإخوة منتوري قسنطينة, 2016-10-30)Although Senecio species are known as sources of potentially toxic pyrrolizidine alkaloids (PAs), some species of this genus are traditionally used as remedies. In this work the evaluation of biological activities and the ... -
تحسين الخصائص الميكانيكية و البيوحيوية للهيدروكسيأباتيت الطبيعي
(جامعة الإخوة منتوري قسنطينة, 2016-11-02)The main objective of this research is to study the hydroxyapatite (HA: Ca10(PO4)6(OH)2,) which was extracted from cortical bovine. This latter because of both its abundance and high purity may be considered as an exciting ... -
Réalisation de dispositifs microélectroniques à base de films organiques
(Universite des freres mentouri constantine, 2016-11-08)This thesis focuses on the realization of microelectronic devices based on organic materials. In order to develop next generation devices those have applications in the topic of solarphotovoltaic energy. Organic semiconductors ... -
Contribution à l’étude de l’implantation des ions de carbone dans le silicium
(Universite des freres mentouri constantine, 2016-11-17)In this work, we studied the ion implantation of carbon in silicon by simulation and experimentally. Several phenomena related to carbon implantation in Si (100) were simulated using two codes: Trim and Crystal ...
