Faculté des Sciences exactes
تقديمات حديثة
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Etude structurale cristalline et spectroscopique des produits benzéniques méthylés et halogéno-méthylés
(جامعة الإخوة منتوري قسنطينة, 2017-06-28)Within the framework of this thesis, the main interest was to carry a structural and spectroscopic study of the benzene products constituted from methyl and halogens and /or amines diaminomesitylene C9H14N2 and the ... -
Etude des propriétés structurales et optiques des matrices cristallines KCl et KBr dopées par les agrégats des terres rares Er, Ce et Lu
(جامعة الإخوة منتوري قسنطينة, 2017-07-09)The aim of this work is to develop and characterize the single crystals of alkali halide (KCl and KBr) doped with rare earth elements (Er, Ce and Lu) using the crystal growth technique from melt phase according to the ... -
Degradation photochimique des colorants cationiques sur des supports inorganiques chromophores en solution aqueuse
(جامعة الإخوة منتوري قسنطينة, 2017-04-06)The main objective of this study is to test the effectiveness of a natural miniral through the study of the elimination of two polluting models "methylene blue and rhodamine B" in aqueous solution. In a homogeneous ... -
Etude parametrique de la combustion du methane enrichi a l’hydrogene
(جامعة الإخوة منتوري قسنطينة, 2017-02-22)Most of the energy produced and used in the world comes from fossil fuels. The combustion of these fuels cause the emission of significant quantities of greenhouse gases as well as different types of pollutants such as ... -
Etude de l'influence des élements ferromgnétiques sur les propriétés physiques des couches minces de TiO2
(جامعة الإخوة منتوري قسنطينة, 2017-09-07) -
Synthèse des dérivés isoquinoléiques et des oléfines nouvelles selon la réaction de Knoevenagel
(جامعة الإخوة منتوري قسنطينة, 2017-05-18)We have introduced in this manuscript the synthesis of new polyfunctional 1, 2-di hydroisoquinolines which can be valuable building blocks in synthesis of potential drugs. In addition, we have synthesized tens of new ... -
Préparation, caractérisation et application des complexes à base d’hétérocycles azotés
(جامعة الإخوة منتوري قسنطينة, 2017-07-10)The aim of this work was the preparation and characterization of new heterocyclic nitrogen donor ligands derived from imidazole and benzimidazole and their coordination compounds 3dn in order to evaluate their corrosion ... -
Synthèse et propriétés des Complexes d’Organoligands chromogènes
(جامعة الإخوة منتوري قسنطينة, 2017-06-29)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 ... -
Comportement d’un oxyhydroxyde de Fe(III) vis-à-vis d’un produit pharmaceutique en solution aqueuse en présence de lumières naturelle et simulée
(جامعة الإخوة منتوري قسنطينة, 2017-07-03)Our objectives in this thesis were to demonstrate the effectiveness of Goethite (GOE) in the amoxicillin (AMX) photodegradation process under artificial and solar irradiation by different systems, as well as the optimization ... -
Nouvelles voies de synthèse des hétérocycles et des dipeptides à tête prosthétique
(جامعة الإخوة منتوري قسنطينة, 2017-07-11)In the first chapter, we developed a novel catalytic synthesis of 3,4- dihydropyrimidinones via Biginelli reaction in the presence of a bronsted ionic liquid [H-val] HSO4 as the reaction medium. Then, we performed the ... -
Elaboration et caractérisation de nanocomposites hybrides
(جامعة الإخوة منتوري قسنطينة, 2017-07-12)Thin films of metal oxides/polymers nanocomposites were deposited on glass substrates by Spin-Coating and Dip-Coating techniques. The nanocomposites were elaborated by inserting, in the matrices of polystyrene (PS) and ... -
تحضير و دراسة خصائص الانورثيت المحضر انطلاقا من الكاولانDD2 والكلسيت
(جامعة الإخوة منتوري قسنطينة, 2017-07-03)In this work, anorthite have a chemical formula (CaO.Al2O3.2SiO2) was prepared from local kaolin and calcium oxide (CaO) extracted from CaCO3. In the first stage, two different methods were followed. The second method shows ... -
Valorisation de plantes sahariennes endémiques du genre Helianthemum-Activité antioxydante.
(جامعة الإخوة منتوري قسنطينة, 2017-07-09)This work is the assessment of a study that we conducted on two endemic plants of the septentrional Sahara from the Cistaceae family: Helianthemum ruficomum and Helianthemum confertum. To our best knowledge, no studies are ... -
Etude de potentiels polyatomiques par l’intégrale de chemin
(جامعة الإخوة منتوري قسنطينة, 2017-06-13)This work concerns a rigorous treatment by the Feynman path integral of a set containing four spherically symmetric quantum systems studied in the past by means of other ineffective methods. In the framework of nonrelativistic ... -
Synthèse et etude structurale des complexes à base des métaux de transition et des dérivés de la sulfanilamide
(جامعة الإخوة منتوري قسنطينة, 2017-05-11)Given to the ability of the derived sulfonamide to coordinate with the metal atoms in various ways, considerable interest in synthesis and structural characterization aspects of new complexes has appeared. In this work, ... -
Etude de potentiels polyatomiques par l’intégrale de chemin
(جامعة الإخوة منتوري قسنطينة, 2017-06-13)This work concerns a rigorous treatment by the Feynman path integral of a set containing four spherically symmetric quantum systems studied in the past by means of other ineffective methods. In the framework of ... -
Synthèse, étude structurale et propriétés physiques des complexes à base de ligands soufrés et métaux de transition
(2017-05-22)This thesis work presents the synthesis and structural determination by single crystal X-ray diffraction of mono and polynuclear coordination compounds of transition elements from the first period 3dn divalent, copper ... -
Etude phytochimique et évaluation des activités biologiques d'Abies numidica de lannoy et de cerdrus atlantica (EndI) Manetti (Pinaceae)
(جامعة الإخوة منتوري قسنطينة, 2017-04-13)Separations and purifications by chromatographic methods allowed us to isolate 8 abietanediterpene compounds from the cones of Abies numidica de Lannoy and 21 compounds from the cones of Cedrus atlantica (Endl) Manetti ... -
Simulation numérique des transferts de chaleur et de masse en milieux poreux saturés de fluide dans différents espaces annulaires
(2016-11-27)The heat and mass transfer by laminar and steady natural convection in two-dimensional horizontal elliptical annular space filled with a fluid-saturated porous medium is analyzed numerically using our calculation code ... -
دراسة فيتوكيميائية لنباتات Euphorbia clementei Boiss. (Euphorbiaceae) Eryngium tricuspidatum L. (Apiaceae) Cladanthus mixtus (L.) Oberpr. & Vogt (Asteraceae)
(جامعة الإخوة منتوري قسنطينة, 2017-04-20)From the photochemical study of 3 Algerian plants Euphorbia clementei (Euphorbiaceae), Eryngium tricuspidatum (Apiaceae), Cladanthus mixtus (Asteraceae), 42 compounds from which 3 are new, have been isolated and identified ...
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